From f7b4cc602b9a646fbc66f3f17d6bb9c20efc3ead Mon Sep 17 00:00:00 2001
From: jaseg Deprecated, Rounding, Clipper.Constructor, Clipper.Execute, Clipper.ZFillFunction, ClipperBase.AddPath, ClipperBase.AddPaths, ClipperOffset, ClipperOffset.Execute, PolyNode, PolyTree, Area, CleanPolygon, CleanPolygons, ClosedPathsFromPolyTree, MinkowskiDiff, MinkowskiSum, OffsetPaths, OpenPathsFromPolyTree, Orientation, PointInPolygon, PolyTreeToPaths, SimplifyPolygon, SimplifyPolygons, Defines, CInt, InitOptions, IntPoint, Path, Paths, PolyFillType, ZFillCallback The precompiler directive 'use_deprecated' allows users to update the Clipper library without being forced to make immediate changes to code that accesses the library. Depricated code will be removed in a future update. (Enabled by default.) Why does Clipper use integer coordinates, not floats? This has been done to preserve numerical robustness. Early versions of the library did use floating point coordinates, but it became apparent that floating point imprecision was always going to cause occasional errors. How do I use floating point coordinates with Clipper? It's a simple task to multiply your floating point coordinates by a scaling factor (that's typically a power of 10 depending on the desired precision). Then with the solution paths, divide the returned coordinates by this same scaling factor. Clipper accepts integer coordinates as large as ±4.6e18, so it can accommodate very large scaling. Does Clipper handle polygons with holes? 'Holes' are defined by the specified polygon filling rule. (See also Clipper.Execute) Some polygons in the solution share a common edge. Is this a bug? No, though this should happen rarely as of version 6. (See Clipper.Execute for more about this.) I have lots of polygons that I want to 'union'. Can I do this in one operation? Yes. Just add all the polygons as subject polygons to the Clipper object. (You don't have to assign both subject and clip polygons.) The polygons produced by ClipperOffset have tiny artefacts? Could this be a bug? Make sure the input polygons don't self-intersect. Tiny self-intersections can sometimes be produced by previous clipping operations. These can be cleaned up using the CleanPolygon and CleanPolygons functions. Also, make sure the supplied polygons don't overlap. If they do, offset these separately. Finally, the precision of the input coordinates may be a problem. Because the Clipper Library only operates on integer coordinates, you may need to scale your coordinates (eg by a factor of 10) to improve precision. Is there an easy way to reverse polygon orientations? Yes, see ReversePaths. My drawings contain lots of beziers, ellipses and arcs. How can I perform clipping operations on these? You'll have to convert them to 'flattened' paths. For an example of how this can be done (and even reconstructed back into beziers, arcs etc), see the CurvesDemo application included in this library. Clipper.Execute, ClipperOffset, CleanPolygon, CleanPolygons, ReversePaths, PolyFillType The Clipper Library (including Delphi, C++ & C# source code, other accompanying code, examples and documentation), hereafter called "the Software", has been released under the following license, terms and conditions: Boost Software License - Version 1.0 - August 17th, 2003 Permission is hereby granted, free of charge, to any person or organization obtaining a copy of the Software covered by this license to use, reproduce, display, distribute, execute, and transmit the Software, and to prepare derivative works of the Software, and to permit third-parties to whom the Software is furnished to do so, all subject to the following: The copyright notices in the Software and this entire statement, including the above license grant, this restriction and the following disclaimer, must be included in all copies of the Software, in whole or in part, and all derivative works of the Software, unless such copies or derivative works are solely in the form of machine-executable object code generated by a source language processor. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. By using an integer type for polygon coordinates, the Clipper Library has been able to avoid problems of numerical robustness that can cause havoc with geometric computations. Problems associated with integer rounding and their possible solutions are discussed below. Clipper.StrictlySimple, CleanPolygons The Clipper Library performs clipping, and offsetting of both lines and polygons.
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Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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+ Home
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+ Overview
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+ Deprecated
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+
Deprecated types and functions:
All deprecated code has been removed from version 6.2.0.
+
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+ Home
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+ Example
+
+
+
+
+ Delphi Code Sample:
+
+
+
+
+
+
+
+
+
+ uses
+ graphics32, clipper;
+
+ function GetEllipsePoints(bounds: TIntRect): TPath;
+ begin
+ //code to create an elliptical polygon here
+ end;
+
+ procedure DrawPolygons(polys: TPaths; color: TColor32);
+ begin
+ //code to display the polygons here
+ end;
+
+ var
+ sub, clp, sol: TPaths;
+ begin
+
+ //set up the subject and clip polygons ...
+ setlength(sub, 3);
+ sub[0] := GetEllipsePoints(IntRect(100,100,300,300));
+ sub[1] := GetEllipsePoints(IntRect(125,130,275,180));
+ sub[2] := GetEllipsePoints(IntRect(125,220,275,270));
+
+ setlength(clp, 1);
+ clp[0] := GetEllipsePoints(IntRect(140,70,220,320));
+
+ //display the subject and clip polygons ...
+ DrawPolygons(sub, 0x8033FFFF);
+ DrawPolygons(clp, 0x80FFFF33);
+
+ //get the intersection of the subject and clip polygons ...
+ with TClipper.Create do
+ try
+ AddPaths(sub, ptSubject, true);
+ AddPaths(clp, ptClip, true);
+ Execute(ctIntersection, sol, pftEvenOdd, pftEvenOdd);
+ finally
+ free;
+ end;
+
+ //finally draw the intersection polygons ...
+ DrawPolygons(sol, 0x40808080);
+
+
+
+
+ C++ Code Sample:
+
+
+
+
+
+
+
+
+
+ #include "clipper.hpp"
+
+ ...
+
+ //from clipper.hpp ...
+ //typedef long long cInt;
+ //struct IntPoint {cInt X; cInt Y;};
+ //typedef std::vector<IntPoint> Path;
+ //typedef std::vector<Polygon> Paths;
+
+ using namespace ClipperLib;
+
+ void GetEllipsePoints(IntRect& bounds, Path& p)
+ {/* ... */}
+
+ void DrawPolygons(Paths& p, unsigned color)
+ {/* ... */}
+
+ int main()
+ {
+ //set up the subject and clip polygons ...
+ Paths sub(3);
+ GetEllipsePoints(IntRect(100,100,300,300), sub[0]);
+ GetEllipsePoints(IntRect(125,130,275,180), sub[1]);
+ GetEllipsePoints(IntRect(125,220,275,270), sub[2]);
+
+ Paths clp(1);
+ GetEllipsePoints(IntRect(140,70,220,320), clp[0]);
+
+ //display the subject and clip polygons ...
+ DrawPolygons(sub, 0x8033FFFF);
+ DrawPolygons(clp, 0x80FFFF33);
+
+ //get the intersection of the subject and clip polygons ...
+ Clipper clpr;
+ clpr.AddPaths(sub, ptSubject, true);
+ clpr.AddPaths(clp, ptClip, true);
+ Paths solution;
+ clpr.Execute(ctIntersection, solution, pftEvenOdd, pftEvenOdd);
+
+ //finally draw the intersection polygons ...
+ DrawPolygons(solution, 0x40808080);
+ }
+
+
+
+
+
+
+ C# Code Sample:
+
+
+
+
+
+
+
+
+
+ ...
+ using ClipperLib;
+
+ ...
+ using Path = List<IntPoint>;
+ using Paths = List<List<IntPoint>>;
+
+ static Path GetEllipsePoints(IntRect bounds)
+ {/* ... */}
+
+ static void DrawPolygons(Path p, uint color)
+ {/* ... */}
+
+ static void Main(string[] args)
+ {
+ Paths subjs = new Paths(3);
+ subjs.Add(GetEllipsePoints(new IntRect(100,100,300,300)));
+ subjs.Add(GetEllipsePoints(new IntRect(125,130,275,180)));
+ subjs.Add(GetEllipsePoints(new IntRect(125,220,275,270)));
+
+ Paths clips = new Paths(1);
+ clips.Add(GetEllipsePoints(new IntRect(140,70,220,320)));
+
+ DrawPolygons(subjs, 0x8033FFFF);
+ DrawPolygons(clips, 0x80FFFF33);
+
+ Paths solution = new Paths();
+ Clipper c = new Clipper();
+ c.AddPaths(subjs, PolyType.ptSubject, true);
+ c.AddPaths(clips, PolyType.ptClip, true);
+ c.Execute(ClipType.ctIntersection, solution);
+
+ DrawPolygons(solution, 0x40808080);
+ }
+
+
+
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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+ Home
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See Also
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http://www.boost.org/LICENSE_1_0.txt
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+ Rounding
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+
It's important to stress at the outset that rounding causes vertices to move fractions of a unit away from their 'true' positions. Nevertheless, the resulting imprecision can be very effectively managed by appropriate scaling.
The Clipper Library supports scaling to very high degrees of precision by accepting integer coordinate values in the range ±0x3FFFFFFFFFFFFFFF (± 4.6e+18).
Another complication of using a discrete numbers (as opposed to real numbers) is that very occasionally tiny self-intersection artefacts arise. In the unscaled image on the left (where one unit equals one pixel), the area of intersection of two polygons has been highlighted in bright green.
A 30X 'close up' of the lower points of intersection of these same two polygons shows the presence of a tiny self-intersecting artefact. The three 'black dots' highlight the actual points of intersection (with their fractional coordinates displayed). The 'red dots' show where these points of intersection are located once rounding is applied. With a little care you can see that rounding reverses the orientation of these vertices and causes a tiny self-intersecting artefact.
Although these tiny self-intersections are uncommon, if it's deemed necessary, they are best removed with CleanPolygons. (Setting Clipper's StrictlySimple property to true would also address this self-intersection but the tiny (sub-unit) polygon 'artefact' with incorrect orientation would still appear in the solution.)
In this final example, the single polygon on the left also has a tiny self-intersection. However, the clipping algorithm sees this vertex (88,50) as simply 'touching' rather than intersecting the right edge of the polygon (though only by a fraction of a unit). Since this intersection won't normally be detected, the clipping solution (eg following a union operation) will still contain this tiny self-intersection. Setting Clipper's StrictlySimple property to true avoids this uncommon problem.
See Also
+
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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+ Home
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+ Overview
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+
A number of features set Clipper apart from other clipping libraries:
+
+
+
Current Version: 6.2.1
Author & copyright:
Angus Johnson. Copyright © 2010-2014
License, terms and conditions: Boost Software License
Terminology:
+
Distribution package contents:
The ZIP package contains the Clipper library's source code, a Windows CHM help file, HTML help, and a number of compiled demo applications (with full source code). The library was initially written in Delphi Pascal (and compiles with Delphi version 7 or above) but now contains C++, C# and Python translations too. The library's source code in each language is about 5000 lines. The Delphi code contains reasonably extensive comments, but comments are fewer in the C++ and C# code. The included sample applications show how Clipper can be used with the different languages using a number of graphics display libraries including - AGG, Cairo, OpenGL, Graphics32, GDI+ and SVG.
Download Link:
SourceForge
References:
The Library is based on but significantly extends Bala Vatti's polygon clipping algorithm as described in "A generic solution to polygon clipping", Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63.
A section in "Computer graphics and geometric modeling: implementation and algorithms" by By Max K. Agoston (Springer, 2005) discussing Vatti Polygon Clipping was also helpful in creating the initial Clipper implementation.
The paper titled "Polygon Offsetting by Computing Winding Numbers" by Chen & McMains (Paper no. DETC2005-85513, ASME 2005. Pages 565-575) contains helpful discussion on the complexities of polygon offsetting together with some solutions.
Source, License, Clipper, ClipperOffset, ClipType, PolyFillType
+ +
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Home + | +ClipperLib + | +Clipper + | ++ | +
Del.» constructor TClipper.Create(InitOptions: TInitOptions = []);
+ +C++ » Clipper::Clipper(int initOptions = 0) : ClipperBase();
+ +C# » public Clipper(initOptions = 0): base() {};
+ + The Clipper constructor creates an instance of the Clipper class. One or more InitOptions may be passed as a parameter to set the corresponding properties. (These properties can still be set or reset after construction.)
Examples:
+
+
+ + //C++ constructor setting StrictlySimple and PreserveCollinear properties ... + Clipper clipper(ioStrictlySimple | ioPreserveCollinear); + + //C# constructor setting StrictlySimple and PreserveCollinear properties ... + Clipper clipper = new Clipper(Clipper.ioStrictlySimple | Clipper.ioPreserveCollinear); + + //Delphi constructor setting StrictlySimple and PreserveCollinear properties ... + clipper := TClipper.Create([ioStrictlySimple, ioPreserveCollinear]); ++ + |
+
PreserveCollinear, ReverseSolution, StrictlySimple, InitOptions
+ +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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Del.»
function Execute(clipType: TClipType;
out solution: TPaths;
subjFillType: TPolyFillType = pftEvenOdd;
clipFillType: TPolyFillType = pftEvenOdd): boolean; overload;
function Execute(clipType: TClipType;
out solution: TPolyTree;
subjFillType: TPolyFillType = pftEvenOdd;
clipFillType: TPolyFillType = pftEvenOdd): boolean; overload;
C++ »
bool Execute(ClipType clipType,
Paths &solution,
PolyFillType subjFillType = pftEvenOdd,
PolyFillType clipFillType = pftEvenOdd);
bool Execute(ClipType clipType,
PolyTree &solution,
PolyFillType subjFillType = pftEvenOdd,
PolyFillType clipFillType = pftEvenOdd);
C# »
public bool Execute(ClipType clipType,
Paths solution,
PolyFillType subjFillType,
PolyFillType clipFillType);
public bool Execute(ClipType clipType,
PolyTree solution,
PolyFillType subjFillType,
PolyFillType clipFillType);
Once subject and clip paths have been assigned (via AddPath and/or AddPaths), Execute can then perform the clipping operation (intersection, union, difference or XOR) specified by the clipType parameter.
The solution parameter can be either a Paths or PolyTree structure. The Paths structure is simpler than the PolyTree stucture. Because of this it is quicker to populate and hence clipping performance is a little better (it's roughly 10% faster). However, the PolyTree data structure provides more information about the returned paths which may be important to users. Firstly, the PolyTree structure preserves nested parent-child polygon relationships (ie outer polygons owning/containing holes and holes owning/containing other outer polygons etc). Also, only the PolyTree structure can differentiate between open and closed paths since each PolyNode has an IsOpen property. (The Path structure has no member indicating whether it's open or closed.) For this reason, when open paths are passed to a Clipper object, the user must use a PolyTree object as the solution parameter, otherwise an exception will be raised.
When a PolyTree object is used in a clipping operation on open paths, two ancilliary functions have been provided to quickly separate out open and closed paths from the solution - OpenPathsFromPolyTree and ClosedPathsFromPolyTree. PolyTreeToPaths is also available to convert path data to a Paths structure (irrespective of whether they're open or closed).
There are several things to note about the solution paths returned:
+
The subjFillType and clipFillType parameters define the polygon fill rule to be applied to the polygons (ie closed paths) in the subject and clip paths respectively. (It's usual though obviously not essential that both sets of polygons use the same fill rule.)
Execute can be called multiple times without reassigning subject and clip polygons (ie when different clipping operations are required on the same polygon sets).
Example, Rounding, ClipperBase.AddPath, ClipperBase.AddPaths, PolyNode.IsOpen, PolyTree, ClosedPathsFromPolyTree, OpenPathsFromPolyTree, PolyTreeToPaths, ClipType, Path, Paths, PolyFillType
+ +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
Home + | +ClipperLib + | +Clipper + | ++ | +
Del.» property PreserveCollinear: boolean; override;
+ +C++ » void PreserveCollinear(bool value);
+ +C# » public bool PreserveCollinear { get {} set {} };
+ + +
By default, when three or more vertices are collinear in input polygons (subject or clip), the Clipper object removes the 'inner' vertices before clipping. When enabled the PreserveCollinear property prevents this default behavior to allow these inner vertices to appear in the solution.
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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Del.» property ReverseSolution: boolean; override;
+ +C++ » void ReverseSolution(bool value);
+ +C# » public bool ReverseSolution { get {} set {} };
+ + +When this property is set to true, polygons returned in the solution parameter of the Execute() method will have orientations opposite to their normal orientations.
+ + + + + +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
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Del.» property StrictlySimple: boolean; override;
+ +C++ » void StrictlySimple(bool value);
+ +C# » public bool StrictlySimple { get {} set {} };
+ + +
Terminology:
+
Vertices 'touch' if they share the same coordinates (and are not adjacent). An edge touches another if one of its end vertices touches another edge excluding its adjacent edges, or if they are co-linear and overlapping (including adjacent edges).
Polygons returned by clipping operations (see Clipper.Execute()) should always be simple polygons. When the StrictlySimply property is enabled, polygons returned will be strictly simple, otherwise they may be weakly simple. It's computationally expensive ensuring polygons are strictly simple and so this property is disabled by default.
Note: There's currently no guarantee that polygons will be strictly simple since 'simplifying' is still a work in progress.
In the image above, the two examples show weakly simple polygons being broken into two strictly simple polygons. (The outlines with arrows are intended to aid visualizing vertex order.)
See also the article on Simple Polygons on Wikipedia.
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Del.» property ZFillFunction: TZFillCallback read FZFillCallback write FZFillCallback;
+ +C++ » void ZFillFunction(ZFillCallback zFillFunc);
+ +C# » public ZFillCallback ZFillFunction { get; set; };
+ This property is only exposed when the pre-processor directive use_xyz has been defined. If this is the case, a 'Z' member will be included in the IntPoint structure where users can store custom data. While most vertices in a clipping solution will correspond to input (subject and clip) vertices, there will also be new vertices wherever edges intersect. This property assigns a custom callback function to the Clipper object so that custom 'Z' values can be assigned to these intersection vertices. (Note that 'Z' values in the solution at non-intersecting vertices will simply be copied from matching input vertices along with the X and Y values.)
It is up to the library user to assign 'Z' values for new intersection vertices (otherwise these values will remain 0). The four vertices that define the intersecting line segments will be passed to the callback function (together with the new intersection vertex) to aid the user in determining appropriate Z values.
+
Defines, IntPoint, ZFillCallback
+ +
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|
+ + The Clipper class encapsulates boolean operations on polygons (intersection, union, difference and XOR), which is also called polygon clipping.
Input polygons, both subject and clip sets, are passed to a Clipper object by its AddPath and AddPaths methods, and the clipping operation is performed by calling its Execute method. Multiple boolean operations can be performed on the same input polygon sets by repeat calls to Execute.
Fields + | Methods + | Properties + | +
---|---|---|
In Clipper: + | +||
+ | +Constructor + | +PreserveCollinear + | +
+ | +Execute + | +ReverseSolution + | +
+ | ++ | +StrictlySimple + | +
+ | ++ | +ZFillFunction + | +
In ClipperBase: + | +||
+ | +AddPath + | ++ | +
+ | +AddPaths + | ++ | +
+ | +Clear + | ++ | +
+ | +GetBounds + | ++ | +
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Del.» function AddPath(const path: TPath; polyType: TPolyType; Closed: Boolean): Boolean;
+ +C++ » bool AddPath(const Path &pg, PolyType polyType, bool closed);
+ +C# » public virtual bool AddPath(Path pg, PolyType polyType, bool closed);
+ Any number of subject and clip paths can be added to a clipping task, either individually via the AddPath() method, or as groups via the AddPaths() method, or even using both methods.
'Subject' paths may be either open (lines) or closed (polygons) or even a mixture of both, but 'clipping' paths must always be closed. Clipper allows polygons to clip both lines and other polygons, but doesn't allow lines to clip either lines or polygons.
With closed paths, orientation should conform with the filling rule that will be passed via Clippper's Execute method.
Path Coordinate range:
Path coordinates must be between ± 0x3FFFFFFFFFFFFFFF (± 4.6e+18), otherwise a range error will be thrown when attempting to add the path to the Clipper object. If coordinates can be kept between ± 0x3FFFFFFF (± 1.0e+9), a modest increase in performance (approx. 15-20%) over the larger range can be achieved by avoiding large integer math. If the preprocessor directive use_int32 is defined (allowing a further increase in performance of 20-30%), then the maximum range is restricted to ± 32,767.
Return Value:
The function will return false if the path is invalid for clipping. A path is invalid for clipping when:
+
Example, Clipper.Execute, AddPaths, Orientation, Defines, Path, PolyFillType, PolyType
+ +
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Home + | +ClipperLib + | +ClipperBase + | ++ | +
Del.» function AddPaths(const paths: TPaths; polyType: TPolyType; Closed: Boolean): boolean;
+ +C++ » bool AddPaths(const Paths &ppg, PolyType polyType, bool closed);
+ +C# » public virtual bool AddPaths(Paths ppg, PolyType polyType, bool closed);
+ Any number of subject and clip paths can be added to a clipping task, either individually via the AddPath() method, or as groups via the AddPaths() method, or even using both methods.
'Subject' paths may be either open (lines) or closed (polygons) or even a mixture of both, but 'clipping' paths must always be closed. Clipper allows polygons to clip both lines and other polygons, but doesn't allow lines to clip either lines or polygons.
With closed paths, orientation should conform with the filling rule that will be passed via Clippper's Execute method.
Path Coordinate range:
Path coordinates must be between ± 0x3FFFFFFFFFFFFFFF (± 4.6e+18), otherwise a range error will be thrown when attempting to add the path to the Clipper object. If coordinates can be kept between ± 0x3FFFFFFF (± 1.0e+9), a modest increase in performance (approx. 15-20%) over the larger range can be achieved by avoiding large integer math. If the preprocessor directive use_int32 is defined (allowing a further increase in performance of 20-30%), then the maximum range is restricted to ± 32,767.
Return Value:
The function will return false if the path is invalid for clipping. A path is invalid for clipping when:
+
Example, Clipper.Execute, AddPaths, Orientation, Defines, Paths, PolyFillType, PolyType
+ +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
Home + | +ClipperLib + | +ClipperBase + | ++ | +
Del.» procedure Clear;
+ +C++ » virtual void Clear();
+ +C# » public void Clear() {};
+ +The Clear method removes any existing subject and clip polygons allowing the Clipper object to be reused for clipping operations on different polygon sets.
+ + + + +
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Del.» function GetBounds: TIntRect;
+ +C++ » IntRect GetBounds();
+ +C# » public IntRect GetBounds() {...};
+This method returns the axis-aligned bounding rectangle of all polygons that have been added to the Clipper object.
+ +
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ClipperBase is an abstract base class for Clipper. A ClipperBase object should not be instantiated directly.
+ + +Methods + | +
---|
In ClipperBase: + | +
AddPath + | +
AddPaths + | +
Clear + | +
GetBounds + | +
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Del.» procedure AddPath(const Path: TPath; JoinType: TJoinType; EndType: TEndType);
+ +C++ » void AddPath(const Path& path, JoinType jointype, EndType endtype);
+ +C# » public void AddPath(Path path, JoinType jointype, EndType endtype);
+ Adds a Path to a ClipperOffset object in preparation for offsetting.
Any number of paths can be added, and each has its own JoinType and EndType. All 'outer' Paths must have the same orientation, and any 'hole' paths must have reverse orientation. Closed paths must have at least 3 vertices. Open paths may have as few as one vertex. Open paths can only be offset with positive deltas.
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Del.» procedure AddPaths(const Paths: TPaths; JoinType: TJoinType; EndType: TEndType);
+ +C++ » void AddPaths(const Paths& paths, JoinType jointype, EndType endtype);
+ +C# » public void AddPaths(Paths paths, JoinType jointype, EndType endtype);
+ Adds Paths to a ClipperOffset object in preparation for offsetting.
Any number of paths can be added, and each path has its own JoinType and EndType. All 'outer' Paths must have the same orientation, and any 'hole' paths must have reverse orientation. Closed paths must have at least 3 vertices. Open paths may have as few as one vertex. Open paths can only be offset with positive deltas.
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Del.» procedure Clear;
+ +C++ » void Clear();
+ +C# » public void Clear();
+ This method clears all paths from the ClipperOffset object, allowing new paths to be assigned.
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Del.» constructor Create(MiterLimit: Double = 2; RoundPrecision: Double = 0.25);
+ +C++ » ClipperOffset( double miterLimit = 2.0, double roundPrecision = 0.25);
+ +C# » public ClipperOffset( double miterLimit = 2.0, double roundPrecision = 0.25);
+ The ClipperOffset constructor takes 2 optional parameters: MiterLimit and ArcTolerance. Thes two parameters corresponds to properties of the same name. MiterLimit is only relevant when JoinType is jtMiter, and ArcTolerance is only relevant when JoinType is jtRound or when EndType is etOpenRound.
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Del.» procedure Execute(out solution: TPaths; Delta: Double); overload;
+ +C++ » void Execute(Paths& solution, double delta);
+ +C# » public void Execute(ref Paths solution, double delta);
+Del.» procedure Execute(out PolyTree: TPolyTree; Delta: Double); overload;
+ +C++ » void Execute(PolyTree& polytree, double delta);
+ +C# » public void Execute(ref PolyTree polytree, double delta);
+ This method takes two parameters. The first is the structure that receives the result of the offset operation (either a PolyTree or a Paths structure). The second parameter is the amount to which the supplied paths will be offset. Negative delta values shrink polygons and positive delta expand them.
This method can be called multiple times, offsetting the same paths by different amounts (ie using different deltas).
+
+
+ +#include "clipper.hpp" +... +using namespace ClipperLib; + +int main() +{ + Path subj; + Paths solution; + subj << + IntPoint(348,257) << IntPoint(364,148) << IntPoint(362,148) << + IntPoint(326,241) << IntPoint(295,219) << IntPoint(258,88) << + IntPoint(440,129) << IntPoint(370,196) << IntPoint(372,275); + ClipperOffset co; + co.AddPath(subj, jtRound, etClosedPolygon); + co.Execute(solution, -7.0); + + //draw solution ... + DrawPolygons(solution, 0x4000FF00, 0xFF009900); +} ++ + + |
+
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Del.» property ArcTolerance: double; //read and write
+ +C++ » double ArcTolerance;
+ +C# » public double ArcTolerance {get; set;}
+ Firstly, this field/property is only relevant when JoinType = jtRound and/or EndType = etRound.
Since flattened paths can never perfectly represent arcs, this field/property specifies a maximum acceptable imprecision ('tolerance') when arcs are approximated in an offsetting operation. Smaller values will increase 'smoothness' up to a point though at a cost of performance and in creating more vertices to construct the arc.
The default ArcTolerance is 0.25 units. This means that the maximum distance the flattened path will deviate from the 'true' arc will be no more than 0.25 units (before rounding).
Reducing tolerances below 0.25 will not improve smoothness since vertex coordinates will still be rounded to integer values. The only way to achieve sub-integer precision is through coordinate scaling before and after offsetting (see example below).
It's important to make ArcTolerance a sensible fraction of the offset delta (arc radius). Large tolerances relative to the offset delta will produce poor arc approximations but, just as importantly, very small tolerances will substantially slow offsetting performance while providing unnecessary degrees of precision. This is most likely to be an issue when offsetting polygons whose coordinates have been scaled to preserve floating point precision.
Example: Imagine a set of polygons (defined in floating point coordinates) that is to be offset by 10 units using round joins, and the solution is to retain floating point precision up to at least 6 decimal places.
To preserve this degree of floating point precision, and given that Clipper and ClipperOffset both operate on integer coordinates, the polygon coordinates will be scaled up by 108
+ (and rounded to integers) prior to offsetting. Both offset delta and ArcTolerance will also need to be scaled by this same factor. If ArcTolerance was left unscaled at the default 0.25 units, every arc in the solution would contain a fraction of 44 THOUSAND vertices while the final arc imprecision would be 0.25 × 10-8
+ units (ie once scaling was reversed). However, if 0.1 units was an acceptable imprecision in the final unscaled solution, then ArcTolerance should be set to 0.1 × scaling_factor (0.1 × 108
+ ). Now if scaling is applied equally to both ArcTolerance and to Delta Offset, then in this example the number of vertices (steps) defining each arc would be a fraction of 23.
The formula for the number of steps in a full circular arc is ... Pi / acos(1 - arc_tolerance / abs(delta))
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Del.» property MiterLimit: double; //read and write
+ +C++ » double MiterLimit;
+ +C# » public double MiterLimit {get; set;}
+ This property sets the maximum distance in multiples of delta that vertices can be offset from their original positions before squaring is applied. (Squaring truncates a miter by 'cutting it off' at 1 × delta distance from the original vertex.)
The default value for MiterLimit is 2 (ie twice delta). This is also the smallest MiterLimit that's allowed. If mitering was unrestricted (ie without any squaring), then offsets at very acute angles would generate unacceptably long 'spikes'.
An example of an offsetting 'spike' at a narrow angle that's a consequence of using a large MiterLimit (25) ...
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The ClipperOffset class encapsulates the process of offsetting (inflating/deflating) both open and closed paths using a number of different join types and end types.
(This class replaces the now deprecated OffsetPaths function which was less flexible.)
Preconditions for offsetting:
1. The orientations of closed paths must be consistent such that outer polygons share the same orientation, and any holes have the opposite orientation (ie non-zero filling). Open paths must be oriented with closed outer polygons.
2. Polygons must not self-intersect.
Limitations:
When offsetting, small artefacts may appear where polygons overlap. To avoid these artefacts, offset overlapping polygons separately.
+
+
+ +#include "clipper.hpp" +... +using namespace ClipperLib; + +int main() +{ + Path subj; + Paths solution; + subj << + IntPoint(348,257) << IntPoint(364,148) << IntPoint(362,148) << + IntPoint(326,241) << IntPoint(295,219) << IntPoint(258,88) << + IntPoint(440,129) << IntPoint(370,196) << IntPoint(372,275); + ClipperOffset co; + co.AddPath(subj, jtRound, etClosedPolygon); + co.Execute(solution, -7.0); + + //draw solution ... + DrawPolygons(solution, 0x4000FF00, 0xFF009900); +} ++ + + |
+
Methods + | Properties + | +
---|---|
In ClipperOffset: + | +|
AddPath + | +ArcTolerance + | +
AddPaths + | +MiterLimit + | +
Clear + | ++ | +
Constructor + | ++ | +
Execute + | ++ | +
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Home + | +ClipperLib + | +PolyNode + | ++ | +
Del.» function GetNext: TPolyNode;
+ +C++ » PolyNode* GetNext();
+ +C# » public PolyNode GetNext();
+ + + The returned Polynode will be the first child if any, otherwise the next sibling, otherwise the next sibling of the Parent etc.
A PolyTree can be traversed very easily by calling GetFirst() followed by GetNext() in a loop until the returned object is a null pointer ...
+
+
+ + PolyTree polytree; + //call to Clipper.Execute method here which fills 'polytree' + + PolyNode* polynode = polytree.GetFirst(); + while (polynode) + { + //do stuff with polynode here + + polynode = polynode->GetNext(); + } + ++ + |
+
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Home + | +ClipperLib + | +PolyNode + | ++ | +
Del.» property ChildCount: Integer; //read only
+ +C++ » ChildCount(); //read only
+ +C# » public int ChildCount; //read only
+ +Returns the number of PolyNode Childs directly owned by the PolyNode object.
+ + +
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Del.» property Childs[index: Integer]: TPolyNode; //read only
+ +C++ » std::vector < PolyNode* > Childs;//public field
+ +C# » public List < PolyNode > Childs; //read only property
+ + + A read-only list of PolyNode.
Outer PolyNode childs contain hole PolyNodes, and hole PolyNode childs contain nested outer PolyNodes.
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Del.» property Contour: TPath; //read only
+ +C++ » Path Contour; //public field
+ +C# » public Path Contour; //read only property
+ + + Returns a path list which contains any number of vertices.
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Home + | +ClipperLib + | +PolyNode + | ++ | +
Del.» IsHole: Boolean; //read only
+ +C++ » bool IsHole; //field
+ +C# » public bool IsHole; //read only property
+ + + Returns true when the PolyNode's polygon (Contour) is a hole.
Children of outer polygons are always holes, and children of holes are always (nested) outer polygons.
The IsHole property of a PolyTree object is undefined but its children are always top-level outer polygons.
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Del.» IsOpen: Boolean; //read only
+ +C++ » bool IsOpen; //field
+ +C# » public bool IsOpen; //read only property
+ + + Returns true when the PolyNode's Contour results from a clipping operation on an open contour (path). Only top-level PolyNodes can contain open contours.
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Del.» Parent: TPolyNode; //read only
+ +C++ » PolyNode* Parent; //field
+ +C# » public PolyNode Parent; //read only property
+ + + Returns the parent PolyNode.
The PolyTree object (which is also a PolyNode) does not have a parent and will return a null pointer.
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PolyNodes are encapsulated within a PolyTree container, and together provide a data structure representing the parent-child relationships of polygon contours returned by Clipper's Execute method.
A PolyNode object represents a single polygon. Its IsHole property indicates whether it's an outer or a hole. PolyNodes may own any number of PolyNode children (Childs), where children of outer polygons are holes, and children of holes are (nested) outer polygons.
Fields + | Methods + | Properties + | +
---|---|---|
In PolyNode: + | +||
+ | +GetNext + | +ChildCount + | +
+ | ++ | +Childs + | +
+ | ++ | +Contour + | +
+ | ++ | +IsHole + | +
+ | ++ | +IsOpen + | +
+ | ++ | +Parent + | +
Overview, Clipper.Execute, PolyTree
+ +
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Home + | +ClipperLib + | +PolyTree + | ++ | +
Del.» procedure Clear;
+ +C++ » void Clear();
+ +C# » public void Clear();
+ This method clears any PolyNode children contained by PolyTree the object.
Clear does not need to be called explicitly. The Clipper.Execute method that accepts a PolyTree parameter will automatically clear the PolyTree object before propagating it with new PolyNodes. Likewise, PolyTree's destructor will also automatically clear any contained PolyNodes.
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Home + | +ClipperLib + | +PolyTree + | ++ | +
Del.» function GetFirst: TPolyNode;
+ +C++ » PolyNode* GetFirst();
+ +C# » public PolyNode GetFirst();
+ + + This method returns the first outer polygon contour if any, otherwise a null pointer.
This function is almost equivalent to calling Childs[0] except that when a PolyTree object is empty (has no children), calling Childs[0] would raise an out of range exception.
PolyNode.GetNext, PolyNode.ChildCount, PolyNode.Childs
+ +
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Home + | +ClipperLib + | +PolyTree + | ++ | +
Del.» property Total: Integer; //read only
+ +C++ » Total(); //read only
+ +C# » public int Total; //read only
+ +Returns the total number of PolyNodes (polygons) contained within the PolyTree. This value is not to be confused with ChildCount which returns the number of immediate children only (Childs) contained by PolyTree.
+ + +PolyNode.ChildCount, PolyNode.Childs
+ +
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|
+ + PolyTree is intended as a read-only data structure that should only be used to receive solutions from clipping and offsetting operations. It's an alternative to the Paths data structure which also receives these solutions. PolyTree's two major advantages over the Paths structure are: it properly represents the parent-child relationships of the returned polygons; it differentiates between open and closed paths. However, since PolyTree is a more complex structure than the Paths structure, and since it's more computationally expensive to process (the Execute method being roughly 5-10% slower), it should used only be when parent-child polygon relationships are needed, or when open paths are being 'clipped'.
An empty PolyTree object can be passed as the solution parameter in Clipper.Execute and in ClipperOffset.Execute. Once the clipping or offseting operation is completed, the method returns with the PolyTree structure filled with data representing the solution.
A PolyTree object is a container for any number of PolyNode children, with each contained PolyNode representing a single polygon contour (either an outer or hole polygon). PolyTree itself is a specialized PolyNode whose immediate children represent the top-level outer polygons of the solution. (Its own Contour property is always empty.) The contained top-level PolyNodes may contain their own PolyNode children representing hole polygons that may also contain children representing nested outer polygons etc. Children of outers will always be holes, and children of holes will always be outers.
PolyTrees can also contain open paths. Open paths will always be represented by top level PolyNodes. Two functions are provided to quickly separate out open and closed paths from a polytree - OpenPathsFromPolyTree and ClosedPathsFromPolyTree.
+ + + | + +
+
+ + + polytree: + Contour = () + ChildCount = 1 + Childs[0]: + Contour = ((10,10),(100,10),(100,100),(10,100)) + IsHole = False + ChildCount = 1 + Childs[0]: + Contour = ((20,20),(20,90),(90,90),(90,20)) + IsHole = True + ChildCount = 2 + Childs[0]: + Contour = ((30,30),(50,30),(50,50),(30,50)) + IsHole = False + ChildCount = 0 + Childs[1]: + Contour = ((60,60),(80,60),(80,80),(60,80)) + IsHole = False + ChildCount = 0 + ++ + |
+
+
Fields + | Methods + | Properties + | +
---|---|---|
In PolyTree: + | +||
+ | +Clear + | +Total + | +
+ | +GetFirst + | ++ | +
In PolyNode: + | +||
+ | +GetNext + | +ChildCount + | +
+ | ++ | +Childs + | +
+ | ++ | +Contour + | +
+ | ++ | +IsHole + | +
+ | ++ | +IsOpen + | +
+ | ++ | +Parent + | +
Overview, Clipper.Execute, ClipperOffset.Execute, PolyNode, ClosedPathsFromPolyTree, OpenPathsFromPolyTree, Paths
+ +
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Home + | +ClipperLib + | ++ | +
Del.» function Area(const pts: TPath): double;
+ +C++ » double Area(const Path &poly);
+ +C# » public static double Area(Path poly);
+ + +This function returns the area of the supplied polygon. It's assumed that the path is closed and does not self-intersect. Depending on orientation, this value may be positive or negative. If Orientation is true, then the area will be positive and conversely, if Orientation is false, then the area will be negative.
+
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Del.» function CleanPolygon(const Poly: TPath; Distance: double = 1.415): TPath;
+ +C++ » void CleanPolygon(const Path &in_poly, Path &out_poly, double distance = 1.415);
+ +C++ » void CleanPolygon(Path &poly, double distance = 1.415);
+ +C# » public static Path CleanPolygon(Path poly, double distance = 1.415);
+Removes vertices: +
Vertices are semi-adjacent when they are separated by a single (out-lying) vertex.
The distance parameter's default value is approximately √2 so that a vertex will be removed when adjacent or semi-adjacent vertices having their corresponding X and Y coordinates differing by no more than 1 unit. (If the egdes are semi-adjacent the out-lying vertex will be removed too.)
C++ only: This function is overloaded. In the first definition, the in_poly and out_poly parameters can reference the same Path object though in that case the calling code might be clearer if the second definition (accepting a single Paths parameter) is used.
CleanPolygons, SimplifyPolygon, Path
+ +
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Del.» function CleanPolygons(const Polys: TPaths; Distance: double = 1.415): TPaths;
+ +C++ » void CleanPolygons(const Paths &in_polys, Paths &out_polys, double distance = 1.415);
+ +C++ » void CleanPolygons(Paths &polys, double distance = 1.415);
+ +C# » public static Paths CleanPolygons(Paths polys, double distance = 1.415);
+Removes vertices: +
Vertices are semi-adjacent when they are separated by a single (out-lying) vertex.
The distance parameter's default value is approximately √2 so that a vertex will be removed when adjacent or semi-adjacent vertices having their corresponding X and Y coordinates differing by no more than 1 unit. (If the egdes are semi-adjacent the out-lying vertex will be removed too.)
C++ only: This function is overloaded. In the first definition, the in_polys and out_polys parameters can reference the same Paths object though in that case the calling code might be clearer if the second definition (accepting a single Paths parameter) is used.
CleanPolygon, SimplifyPolygons
+ +
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Del.» function ClosedPathsFromPolyTree(PolyTree: TPolyTree): TPaths;
+ +C++ » void ClosedPathsFromPolyTree(PolyTree& polytree, Paths& paths);
+ +C# » public static void ClosedPathsFromPolyTree(PolyTree polytree, Paths paths);
+This function filters out open paths from the PolyTree structure and returns only closed paths in a Paths structure.
+ +
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Del.» function MinkowskiDiff(const Poly1: TPath; const Poly2: TPath): TPaths;
+ +C++ » void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution);
+ +C# » public static Paths MinkowskiDiff(Path poly1, Path poly2);
+ Minkowski Difference is performed by subtracting each point in a polygon from the set of points in an open or closed path. A key feature of Minkowski Difference is that when it's applied to two polygons, the resulting polygon will contain the coordinate space origin whenever the two polygons touch or overlap. (This function is often used to determine when polygons collide.)
In the image on the left the blue polygon is the 'minkowski difference' of the two red boxes. The black dot represents the coordinate space origin.
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Del.» function MinkowskiSum(const Pattern: TPath; const Path: TPath; PathIsClosed: Boolean): TPaths; overload;
+ +Del.» function MinkowskiSum(const Pattern: TPath; const Paths: TPaths; PathFillType: TPolyFillType; PathIsClosed: Boolean): TPaths; overload;
+ +C++ » void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed);
+ +C++ » void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, PolyFillType pathFillType, bool pathIsClosed);
+ +C# » public static Paths MinkowskiSum(Path pattern, Path path, bool pathIsClosed);
+ +C# » public static Paths MinkowskiSum(Path pattern, Paths paths, PolyFillType pathFillType, bool pathIsClosed);
+Minkowski Addition is performed by adding each point in a polygon 'pattern' to the set of points in an open or closed path. The resulting polygon (or polygons) defines the region that the 'pattern' would pass over in moving from the beginning to the end of the 'path'.
+ + ++
+ Path path = new Path(); + Path pattern = new Path(); + Paths solution = new Paths(); + + //Greek capital sigma (sum sign) ... + Int64[] ints1 = new Int64[] { 300, 400, 100, 400, 200, 300, 100, 200, 300, 200 }; + path = IntsToPolygon(ints1); + + //diagonal brush pattern ... + Int64[] ints2 = new Int64[] { 4, -6, 6, -6, -4, 6, -6, 6 }; + pattern = IntsToPolygon(ints2); + + solution = Clipper.MinkowskiSum(pattern, path, false); + //move 'pattern' to the end of 'path' ... + pattern = TranslatePath(pattern, 300, 200); + + //Display solution ± pattern ... ++ + + +
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Del.» function OffsetPaths(const polys: Paths; const delta: double; JoinType: TJoinType = jtSquare; EndType: TEndType = etClosed; Limit: double = 0.0): TPaths;
+ +C++ » void OffsetPaths(const Paths &in_polys, Paths &out_polys, double delta, JoinType jointype = jtSquare, EndType endtype = etClosed, double limit = 0.0);
+ +C# » public static Paths OffsetPaths(Paths polys, double delta, JoinType jointype = JoinType.jtSquare, EndType endtype = EndType.etClosed, double limit = 0.0);
+ Deprecated. (See ClipperOffset.)
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Home + | +ClipperLib + | ++ | +
Del.» function OpenPathsFromPolyTree(PolyTree: TPolyTree): TPaths;
+ +C++ » void OpenPathsFromPolyTree(PolyTree& polytree, Paths& paths);
+ +C# » public static void OpenPathsFromPolyTree(PolyTree polytree, Paths paths);
+This function filters out closed paths from the PolyTree structure and returns only open paths in a Paths structure.
+ +
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Del.» function Orientation(const poly: TPath): boolean;
+ +C++ » bool Orientation(const Path &poly); // Function in the ClipperLib namespace.
+ +C# » public static bool Orientation(Path poly); // Static method of the Clipper class in the ClipperLib namespace.
+ + +Orientation is only important to closed paths. Given that vertices are declared in a specific order, orientation refers to the direction (clockwise or counter-clockwise) that these vertices progress around a closed path.
Orientation is also dependent on axis direction:
+
Notes:
+
Overview, Clipper.ReverseSolution, Path
+ +
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Del.» function PointInPolygon(const Pt: TIntPoint; const poly: TPath): Integer;
+ +C++ » int PointInPolygon(const IntPoint pt, const Path &poly); // Function in the ClipperLib namespace.
+ +C# » public static int PointInPolygon(IntPoint pt, Path poly); // Static method of the Clipper class.
+ + +Returns 0 when false, -1 when pt is on poly and +1 when pt is in poly.
It's assumed that 'poly' is closed and does not self-intersect.
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Del.» function PolyTreeToPaths(PolyTree: TPolyTree): TPaths;
+ +C++ » void PolyTreeToPaths(PolyTree& polytree, Paths& paths);
+ +C# » public static Paths PolyTreeToPaths(PolyTree polytree);
+This function converts a PolyTree structure into a Paths structure.
+ +
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Del.» function ReversePath(const polys: TPath): TPath;
+ +C++ » void ReversePath(const Path &p);
+ +C# » //Call Path.Reverse().
+Reverses the vertex order (and hence orientation) in the specified path.
+ + +
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Del.» function ReversePaths(const p: TPaths): TPaths;
+ +C++ » void ReversePaths(const Paths &p);
+ +C# » void ReversePaths( Paths p );
+Reverses the vertex order (and hence orientation) in each contained path.
+ + + +
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Del.» function SimplifyPolygon(const Poly: TPath; FillType: TPolyFillType = pftEvenOdd): TPaths;
+ + C++ » void SimplifyPolygon(const Path &in_poly, Paths &out_polys,
PolyFillType fillType = pftEvenOdd);
C# » public static Paths SimplifyPolygon(Path poly,
PolyFillType fillType = PolyFillType.pftEvenOdd);
Removes self-intersections from the supplied polygon (by performing a boolean union operation using the nominated PolyFillType).
Polygons with non-contiguous duplicate vertices (ie 'touching') will be split into two polygons.
Note: There's currently no guarantee that polygons will be strictly simple since 'simplifying' is still a work in progress.
Clipper.StrictlySimple, CleanPolygon, Path, PolyFillType
+ +
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Del.» function SimplifyPolygons(const polys: TPaths;
FillType: TPolyFillType = pftEvenOdd): TPaths;
C++ » void SimplifyPolygons(const Paths &in_polys, Paths &out_polys,
PolyFillType fillType = pftEvenOdd);
C++ » void SimplifyPolygons(Paths &polys, PolyFillType fillType = pftEvenOdd);
+ +C# » public static Polygons SimplifyPolygons(Paths polys,
PolyFillType fillType = PolyFillType.pftEvenOdd);
Removes self-intersections from the supplied polygons (by performing a boolean union operation using the nominated PolyFillType).
Polygons with non-contiguous duplicate vertices (ie 'vertices are touching') will be split into two polygons.
C++ only: This function is overloaded. In the first definition, the in_polys and out_polys parameters can reference the same Paths object though in that case the calling code might be clearer if the second definition (accepting a single Paths parameter) is used.
Note: There's currently no guarantee that polygons will be strictly simple since 'simplifying' is still a work in progress.
Clipper.StrictlySimple, CleanPolygons, PolyFillType
+ +
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Del.»
{$IFDEF use_int32}
cInt = Int32;
{$ELSE}
cInt = Int64;
{$ENDIF}
C++ »
#ifdef use_int32
typedef int cInt;
#else
typedef signed long long cInt;
#endif
C# »
#if use_int32
using cInt = Int32;
#else
using cInt = Int64;
#endif
cInt is the integer type used by the Clipper Library to represent vertex coordinate values. (See also IntPoint.)
The library uses integers instead of floating point values to preserve numerical robustness. (Very early versions of the library used floating point coordinates, but it became apparent that floating point imprecision was always going to cause occasional errors.)
By default cInt represents a signed 64bit integer and polygon coordinates can have any value in the range ± 9.2e+18. This accommodates the scaling of floating point coordinate values to very large integers so that very high degrees of precision can be retained during clipping. However, if coordinate values can be kept within the range ± 3.0e+9, then by avoiding large integer math, a modest ~10% improvement in clipping performance is achieved.
If the preprocessor directive use_int32 is defined, cInt will represent a signed 32bit integer. This improves clipping performance by 20-30% but the trade-off is that coordinate values are restricted to the much narrower range of ± 46340.
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
Home + | +ClipperLib + | ++ | +
Del.» type TClipType = (ctIntersection, ctUnion, ctDifference, ctXor);
+ +C++ » enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor };
+ +C# » public enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor };
+ There are four boolean operations - AND, OR, NOT & XOR.
Given that subject and clip polygon brush 'filling' is defined both by their vertices and their respective filling rules, the four boolean operations can be applied to polygons to define new filling regions:
+
All polygon clipping is performed with a Clipper object with the specific boolean operation indicated by the ClipType parameter passed in its Execute method.
With regard to open paths (polylines), clipping rules generally match those of closed paths (polygons).
However, when there are both polyline and polygon subjects, the following clipping rules apply:
+
Example of clipping behaviour when mixing polyline and polygon subjects:
Overview, Clipper, Clipper.Execute, PolyFillType
+ +
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Del.» type TEndType = (etClosedPolygon, etClosedLine, etOpenSquare, etOpenRound, etOpenButt);
+ +C++ » enum EndType {etClosedPolygon, etClosedLine, etOpenSquare, etOpenRound, etOpenButt};
+ +C# » public enum EndType {etClosedPolygon, etClosedLine, etOpenSquare, etOpenRound, etOpenButt};
+The EndType enumerator has 5 values: +
Note: With etClosedPolygon and etClosedLine types, the path closure will be the same regardless of whether or not the first and last vertices in the path match.
ClipperOffset.AddPath, ClipperOffset.AddPaths
+ +
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Del.» type TInitOption = (ioReverseSolution, ioStrictlySimple, ioPreserveCollinear);
+ +C++ » enum InitOptions {
ioReverseSolution = 1,
ioStrictlySimple = 2,
ioPreserveCollinear = 4};
C# » public const int ioReverseSolution = 1;
public const int ioStrictlySimple = 2;
public const int ioPreserveCollinear = 4;
+ + + + + +
Clipper.Constructor, Clipper.PreserveCollinear, Clipper.ReverseSolution, Clipper.StrictlySimple
+ +
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Del.» TIntPoint = record X, Y: cInt; end;
+ +C++ » struct IntPoint { cInt X; cInt Y; ... };
+ +C# » public class IntPoint { public cInt X; { get; set; } public cInt Y; { get; set; } ... };
+ The IntPoint structure is used to represent all vertices in the Clipper Library. An integer storage type has been deliberately chosen to preserve numerical robustness. (Early versions of the library used floating point coordinates, but it became apparent that floating point imprecision would always cause occasional errors.)
A sequence of IntPoints are contained within a Path structure to represent a single contour.
As of version 6, IntPoint now has an optional third member 'Z'. This can be enabled by exposing (ie uncommenting) the PreProcessor define 'use_xyz'. When the Z member is used, its values will be copied to corresponding verticies in solutions to clipping operations. However, at points of intersection where there's no corresponding Z value, the value will be assigned zero unless a new value is provided by a user supplied callback function.
Users wishing to clip or offset polygons containing floating point coordinates need to use appropriate scaling when converting these values to and from IntPoints.
See also the notes on rounding.
Rounding, Clipper.ZFillFunction, Defines, CInt, Path, Paths
+ +
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Del.»
TIntRect = record left, top, right, bottom: cInt; end;
C++ »
struct IntRect { cInt left; cInt top; cInt right; cInt bottom; ... };
C# »
public class IntRect {
public cInt left; { get; set; }
public cInt top; { get; set; }
public cInt right; { get; set; }
public cInt bottom; { get; set; } ... };
Structure returned by Clipper's GetBounds method.
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Del.» type TJoinType = (jtSquare, jtRound, jtMiter);
+ +C++ » enum JoinType {jtSquare, jtRound, jtMiter};
+ +C# » public enum JoinType {jtSquare, jtRound, jtMiter};
+ When adding paths to a ClipperOffset object via the AddPaths method, the joinType parameter may be one of three types - jtMiter, jtSquare or jtRound.
+
ClipperOffset, ClipperOffset.AddPaths, ClipperOffset.ArcTolerance, ClipperOffset.MiterLimit
+ +
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Del.» TPath = array of TIntPoint;
+ +C++ » typedef std::vector<IntPoint> Path;
+ +C# » using Path = List<IntPoint>;
+ This structure contains a sequence of IntPoint vertices defining a single contour (see also terminology). Paths may be open and represent a series of line segments bounded by 2 or more vertices, or they may be closed and represent polygons. Whether or not a path is open depends on context. Closed paths may be 'outer' contours or 'hole' contours. Which they are depends on orientation.
Multiple paths can be grouped into a Paths structure.
Overview, Example, ClipperBase.AddPath, PolyTree, Orientation, IntPoint, Paths
+ +
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Del.» TPaths = array of TPath;
+ +C++ » typedef std::vector< Path > Paths;
+ +C# » using Paths = List<List< IntPoint >>;
+ This structure is fundamental to the Clipper Library. It's a list or array of one or more Path structures. (The Path structure contains an ordered list of vertices that make a single contour.)
Paths may open (a series of line segments), or they may closed (polygons). Whether or not a path is open depends on context. Closed paths may be 'outer' contours or 'hole' contours. Which they are depends on orientation.
Clipper.Execute, ClipperBase.AddPath, ClipperBase.AddPaths, OffsetPaths, IntPoint, Path
+ +
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Del.» type TPolyFillType = (pftEvenOdd, pftNonZero, pftPositive, pftNegative);
+ +C++ » enum PolyFillType {pftEvenOdd, pftNonZero, pftPositive, pftNegative};
+ +C# » public enum PolyFillType {pftEvenOdd, pftNonZero, pftPositive, pftNegative};
+ Filling indicates those regions that are inside a closed path (ie 'filled' with a brush color or pattern in a graphical display) and those regions that are outside. The Clipper Library supports 4 filling rules: Even-Odd, Non-Zero, Positive and Negative.
The simplest filling rule is Even-Odd filling (sometimes called alternate filling). Given a group of closed paths start from a point outside the paths and progress along an imaginary line through the paths. When the first path is crossed the encountered region is filled. When the next path is crossed the encountered region is not filled. Likewise, each time a path is crossed, filling starts if it had stopped and stops if it had started.
With the exception of Even-Odd filling, all other filling rules rely on edge direction and winding numbers to determine filling. Edge direction is determined by the order in which vertices are declared when constructing a path. Edge direction is used to determine the winding number of each polygon subregion.
The winding number for each polygon sub-region can be derived by:
Even-Odd (Alternate): Odd numbered sub-regions are filled, while even numbered sub-regions are not.
Non-Zero (Winding): All non-zero sub-regions are filled.
Positive: All sub-regions with winding counts > 0 are filled.
Negative: All sub-regions with winding counts < 0 are filled.
Paths are added to a Clipper object using the AddPath or AddPaths methods and the filling rules (for subject and clip polygons separately) are specified in the Execute method.
Polygon regions are defined by one or more closed paths which may or may not intersect. A single polygon region can be defined by a single non-intersecting path or by multiple non-intersecting paths where there's typically an 'outer' path and one or more inner 'hole' paths. Looking at the three shapes in the image above, the middle shape consists of two concentric rectangles sharing the same clockwise orientation. With even-odd filling, where orientation can be disregarded, the inner rectangle would create a hole in the outer rectangular polygon. There would be no hole with non-zero filling. In the concentric rectangles on the right, where the inner rectangle is orientated opposite to the outer, a hole will be rendered with either even-odd or non-zero filling. A single path can also define multiple subregions if it self-intersects as in the example of the 5 pointed star shape below.
By far the most widely used fill rules are Even-Odd (aka Alternate) and Non-Zero (aka Winding). Most graphics rendering libraries (AGG, Android Graphics, Cairo, GDI+, OpenGL, Quartz 2D etc) and vector graphics storage formats (SVG, Postscript, Photoshop etc) support both these rules. However some libraries (eg Java's Graphics2D) only support one fill rule. Android Graphics and OpenGL are the only libraries (that I'm aware of) that support multiple filling rules.
It's useful to note that edge direction has no affect on a winding number's odd-ness or even-ness. (This is why orientation is ignored when the Even-Odd rule is employed.)
The direction of the Y-axis does affect polygon orientation and edge direction. However, changing Y-axis orientation will only change the sign of winding numbers, not their magnitudes, and has no effect on either Even-Odd or Non-Zero filling.
Clipper.Execute, ClipperBase.AddPath, ClipperBase.AddPaths, Orientation
+ +
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Del.» type TPolyType = (ptSubject, ptClip);
+ +C++ » enum PolyType { ptSubject, ptClip };
+ +C# » public enum PolyType { ptSubject, ptClip };
+ Boolean (clipping) operations are mostly applied to two sets of Polygons, represented in this library as subject and clip polygons. Whenever Polygons are added to the Clipper object, they must be assigned to either subject or clip polygons.
UNION operations can be performed on one set or both sets of polygons, but all other boolean operations require both sets of polygons to derive meaningful solutions.
ClipperBase.AddPath, ClipperBase.AddPaths, ClipType
+ +
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Del.» type TZFillCallback = procedure (const E1Bot, E1Top, E2Bot, E2Top: TIntPoint; var Pt: TIntPoint);
+ +C++ » typedef void (*ZFillCallback)(const IntPoint& e1bot, IntPoint& e1top, IntPoint& e2bot, IntPoint& e2top, IntPoint& pt);
+ +C# » public delegate void ZFillCallback(IntPoint bot1, IntPoint top1, IntPoint bot2, IntPoint top2, ref IntPoint pt);
+ If the use_xyz pre-processor directive is enabled, then the IntPoint class will have an extra 'Z' member and the Clipper class's ZFillFunction property will be exposed so it can be assigned a custom callback function.
This custom callback procedure requires five IntPoint parameters: the first 2 parameters are the vertices that define one line segment involved in the intersection and the next two parameters the other line segment. (Since the Clipper library has been developed in an environment that uses an inverted Y axis display, e1bot and e2bot will always have Y values greater than or equal to their corresponding e1top and e2top Y values.) The last IntPoint parameter contain the actual coordinates at the intersection. This last parameter is passed by reference so that its Z member can be assigned with a custom value.
Clipper.ZFillFunction, Defines
+ +
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Home + | ++ | +
Filenames: clipper.pas; clipper.hpp and clipper.cpp; clipper.cs
Namespace: ClipperLib
Types + | Classes + | Functions + | +
---|---|---|
CInt + | +Clipper + | +Area + | +
ClipType + | +ClipperBase + | +CleanPolygon + | +
EndType + | +ClipperOffset + | +CleanPolygons + | +
InitOptions + | +PolyNode + | +ClosedPathsFromPolyTree + | +
IntPoint + | +PolyTree + | +MinkowskiDiff + | +
IntRect + | ++ | +MinkowskiSum + | +
JoinType + | ++ | +OffsetPaths + | +
Path + | ++ | +OpenPathsFromPolyTree + | +
Paths + | ++ | +Orientation + | +
PolyFillType + | ++ | +PointInPolygon + | +
PolyType + | ++ | +PolyTreeToPaths + | +
ZFillCallback + | ++ | +ReversePath + | +
+ | ++ | +ReversePaths + | +
+ | ++ | +SimplifyPolygon + | +
+ | ++ | +SimplifyPolygons + | +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
Library Overview + | +Changes + | +Example + | +FAQ + | +Rounding + | +Deprecated + | +License + | +
+ | +
+ Classes (Hierarchy)+ + + + + + |
+
CInt + | +InitOptions + | +JoinType + | +PolyFillType + | +
ClipType + | +IntPoint + | +Path + | +PolyType + | +
EndType + | +IntRect + | +Paths + | +ZFillCallback + | +
Area + | +ClosedPathsFromPolyTree + | +OffsetPaths + | +PointInPolygon + | +ReversePaths + | +
CleanPolygon + | +MinkowskiDiff + | +OpenPathsFromPolyTree + | +PolyTreeToPaths + | +SimplifyPolygon + | +
CleanPolygons + | +MinkowskiSum + | +Orientation + | +ReversePath + | +SimplifyPolygons + | +
ClipperLib + | +
Copyright ©2010-2014 Angus Johnson - Clipper 6.2.1 - Help file built on 1-November-2014
+function helloSyntaxHighlighter() +{ + return "hi!"; +} ++ + diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/scripts/shAutoloader.js b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/scripts/shAutoloader.js new file mode 100644 index 0000000..4e29bdd --- /dev/null +++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/scripts/shAutoloader.js @@ -0,0 +1,17 @@ +/** + * SyntaxHighlighter + * http://alexgorbatchev.com/SyntaxHighlighter + * + * SyntaxHighlighter is donationware. If you are using it, please donate. + * http://alexgorbatchev.com/SyntaxHighlighter/donate.html + * + * @version + * 3.0.83 (July 02 2010) + * + * @copyright + * Copyright (C) 2004-2010 Alex Gorbatchev. + * + * @license + * Dual licensed under the MIT and GPL licenses. + */ +eval(function(p,a,c,k,e,d){e=function(c){return(c35?String.fromCharCode(c+29):c.toString(36))};if(!''.replace(/^/,String)){while(c--){d[e(c)]=k[c]||e(c)}k=[function(e){return d[e]}];e=function(){return'\\w+'};c=1};while(c--){if(k[c]){p=p.replace(new RegExp('\\b'+e(c)+'\\b','g'),k[c])}}return p}('(2(){1 h=5;h.I=2(){2 n(c,a){4(1 d=0;d
\\\\w+)\\\\]$","U"),i=1,p=0;ptags. + */ +function processUrls(code) +{ + var gt = /(.*)((>|<).*)/; + + return code.replace(sh.regexLib.url, function(m) + { + var suffix = '', + match = null + ; + + // We include < and > in the URL for the common cases liketags to the document body + for (i = 0; i < elements.length; i++) + { + var url = brushes[elements[i].params.brush]; + + if (!url) + continue; + + scripts[url] = false; + loadScript(url); + } + + function loadScript(url) + { + var script = document.createElement('script'), + done = false + ; + + script.src = url; + script.type = 'text/javascript'; + script.language = 'javascript'; + script.onload = script.onreadystatechange = function() + { + if (!done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete')) + { + done = true; + scripts[url] = true; + checkAll(); + + // Handle memory leak in IE + script.onload = script.onreadystatechange = null; + script.parentNode.removeChild(script); + } + }; + + // sync way of adding script tags to the page + document.body.appendChild(script); + }; + + function checkAll() + { + for(var url in scripts) + if (scripts[url] == false) + return; + + if (allCalled) + SyntaxHighlighter.highlight(allParams); + }; +}; + +})(); diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shCore.js b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shCore.js new file mode 100644 index 0000000..4214763 --- /dev/null +++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shCore.js @@ -0,0 +1,1721 @@ +/** + * SyntaxHighlighter + * http://alexgorbatchev.com/SyntaxHighlighter + * + * SyntaxHighlighter is donationware. If you are using it, please donate. + * http://alexgorbatchev.com/SyntaxHighlighter/donate.html + * + * @version + * 3.0.83 (July 02 2010) + * + * @copyright + * Copyright (C) 2004-2010 Alex Gorbatchev. + * + * @license + * Dual licensed under the MIT and GPL licenses. + */ +// +// Begin anonymous function. This is used to contain local scope variables without polutting global scope. +// +var SyntaxHighlighter = function() { + +// CommonJS +if (typeof(require) != 'undefined' && typeof(XRegExp) == 'undefined') +{ + XRegExp = require('XRegExp').XRegExp; +} + +// Shortcut object which will be assigned to the SyntaxHighlighter variable. +// This is a shorthand for local reference in order to avoid long namespace +// references to SyntaxHighlighter.whatever... +var sh = { + defaults : { + /** Additional CSS class names to be added to highlighter elements. */ + 'class-name' : '', + + /** First line number. */ + 'first-line' : 1, + + /** + * Pads line numbers. Possible values are: + * + * false - don't pad line numbers. + * true - automaticaly pad numbers with minimum required number of leading zeroes. + * [int] - length up to which pad line numbers. + */ + 'pad-line-numbers' : false, + + /** Lines to highlight. */ + 'highlight' : null, + + /** Title to be displayed above the code block. */ + 'title' : null, + + /** Enables or disables smart tabs. */ + 'smart-tabs' : true, + + /** Gets or sets tab size. */ + 'tab-size' : 4, + + /** Enables or disables gutter. */ + 'gutter' : true, + + /** Enables or disables toolbar. */ + 'toolbar' : true, + + /** Enables quick code copy and paste from double click. */ + 'quick-code' : true, + + /** Forces code view to be collapsed. */ + 'collapse' : false, + + /** Enables or disables automatic links. */ + 'auto-links' : true, + + /** Gets or sets light mode. Equavalent to turning off gutter and toolbar. */ + 'light' : false, + + 'html-script' : false + }, + + config : { + space : ' ', + + /** Enables use of tags. */ + useScriptTags : true, + + /** Blogger mode flag. */ + bloggerMode : false, + + stripBrs : false, + + /** Name of the tag that SyntaxHighlighter will automatically look for. */ + tagName : 'pre', + + strings : { + expandSource : 'expand source', + help : '?', + alert: 'SyntaxHighlighter\n\n', + noBrush : 'Can\'t find brush for: ', + brushNotHtmlScript : 'Brush wasn\'t configured for html-script option: ', + + // this is populated by the build script + aboutDialog : ' About SyntaxHighlighter ' + } + }, + + /** Internal 'global' variables. */ + vars : { + discoveredBrushes : null, + highlighters : {} + }, + + /** This object is populated by user included external brush files. */ + brushes : {}, + + /** Common regular expressions. */ + regexLib : { + multiLineCComments : /\/\*[\s\S]*?\*\//gm, + singleLineCComments : /\/\/.*$/gm, + singleLinePerlComments : /#.*$/gm, + doubleQuotedString : /"([^\\"\n]|\\.)*"/g, + singleQuotedString : /'([^\\'\n]|\\.)*'/g, + multiLineDoubleQuotedString : new XRegExp('"([^\\\\"]|\\\\.)*"', 'gs'), + multiLineSingleQuotedString : new XRegExp("'([^\\\\']|\\\\.)*'", 'gs'), + xmlComments : /(<|<)!--[\s\S]*?--(>|>)/gm, + url : /\w+:\/\/[\w-.\/?%&=:@;]*/g, + + /** = ?> tags. */ + phpScriptTags : { left: /(<|<)\?=?/g, right: /\?(>|>)/g }, + + /** <%= %> tags. */ + aspScriptTags : { left: /(<|<)%=?/g, right: /%(>|>)/g }, + + /** tags. */ + scriptScriptTags : { left: /(<|<)\s*script.*?(>|>)/gi, right: /(<|<)\/\s*script\s*(>|>)/gi } + }, + + toolbar: { + /** + * Generates HTML markup for the toolbar. + * @param {Highlighter} highlighter Highlighter instance. + * @return {String} Returns HTML markup. + */ + getHtml: function(highlighter) + { + var html = ' '; + + return html; + }, + + /** + * Generates HTML markup for a regular button in the toolbar. + * @param {Highlighter} highlighter Highlighter instance. + * @param {String} commandName Command name that would be executed. + * @param {String} label Label text to display. + * @return {String} Returns HTML markup. + */ + getButtonHtml: function(highlighter, commandName, label) + { + return '' + label + '' + ; + }, + + /** + * Event handler for a toolbar anchor. + */ + handler: function(e) + { + var target = e.target, + className = target.className || '' + ; + + function getValue(name) + { + var r = new RegExp(name + '_(\\w+)'), + match = r.exec(className) + ; + + return match ? match[1] : null; + }; + + var highlighter = getHighlighterById(findParentElement(target, '.syntaxhighlighter').id), + commandName = getValue('command') + ; + + // execute the toolbar command + if (highlighter && commandName) + sh.toolbar.items[commandName].execute(highlighter); + + // disable default A click behaviour + e.preventDefault(); + }, + + /** Collection of toolbar items. */ + items : { + // Ordered lis of items in the toolbar. Can't expect `for (var n in items)` to be consistent. + list: ['expandSource', 'help'], + + expandSource: { + getHtml: function(highlighter) + { + if (highlighter.getParam('collapse') != true) + return ''; + + var title = highlighter.getParam('title'); + return sh.toolbar.getButtonHtml(highlighter, 'expandSource', title ? title : sh.config.strings.expandSource); + }, + + execute: function(highlighter) + { + var div = getHighlighterDivById(highlighter.id); + removeClass(div, 'collapsed'); + } + }, + + /** Command to display the about dialog window. */ + help: { + execute: function(highlighter) + { + var wnd = popup('', '_blank', 500, 250, 'scrollbars=0'), + doc = wnd.document + ; + + doc.write(sh.config.strings.aboutDialog); + doc.close(); + wnd.focus(); + } + } + } + }, + + /** + * Finds all elements on the page which should be processes by SyntaxHighlighter. + * + * @param {Object} globalParams Optional parameters which override element's + * parameters. Only used if element is specified. + * + * @param {Object} element Optional element to highlight. If none is + * provided, all elements in the current document + * are returned which qualify. + * + * @return {Array} Returns list ofSyntaxHighlighterversion 3.0.83 (July 02 2010)JavaScript code syntax highlighter.Copyright 2004-2010 Alex Gorbatchev.If you like this script, please donate to
keep development active!{ target: DOMElement, params: Object }
objects. + */ + findElements: function(globalParams, element) + { + var elements = element ? [element] : toArray(document.getElementsByTagName(sh.config.tagName)), + conf = sh.config, + result = [] + ; + + // support for feature + if (conf.useScriptTags) + elements = elements.concat(getSyntaxHighlighterScriptTags()); + + if (elements.length === 0) + return result; + + for (var i = 0; i < elements.length; i++) + { + var item = { + target: elements[i], + // local params take precedence over globals + params: merge(globalParams, parseParams(elements[i].className)) + }; + + if (item.params['brush'] == null) + continue; + + result.push(item); + } + + return result; + }, + + /** + * Shorthand to highlight all elements on the page that are marked as + * SyntaxHighlighter source code. + * + * @param {Object} globalParams Optional parameters which override element's + * parameters. Only used if element is specified. + * + * @param {Object} element Optional element to highlight. If none is + * provided, all elements in the current document + * are highlighted. + */ + highlight: function(globalParams, element) + { + var elements = this.findElements(globalParams, element), + propertyName = 'innerHTML', + highlighter = null, + conf = sh.config + ; + + if (elements.length === 0) + return; + + for (var i = 0; i < elements.length; i++) + { + var element = elements[i], + target = element.target, + params = element.params, + brushName = params.brush, + code + ; + + if (brushName == null) + continue; + + // Instantiate a brush + if (params['html-script'] == 'true' || sh.defaults['html-script'] == true) + { + highlighter = new sh.HtmlScript(brushName); + brushName = 'htmlscript'; + } + else + { + var brush = findBrush(brushName); + + if (brush) + highlighter = new brush(); + else + continue; + } + + code = target[propertyName]; + + // remove CDATA from tags if it's present + if (conf.useScriptTags) + code = stripCData(code); + + // Inject title if the attribute is present + if ((target.title || '') != '') + params.title = target.title; + + params['brush'] = brushName; + highlighter.init(params); + element = highlighter.getDiv(code); + + // carry over ID + if ((target.id || '') != '') + element.id = target.id; + + target.parentNode.replaceChild(element, target); + } + }, + + /** + * Main entry point for the SyntaxHighlighter. + * @param {Object} params Optional params to apply to all highlighted elements. + */ + all: function(params) + { + attachEvent( + window, + 'load', + function() { sh.highlight(params); } + ); + } +}; // end of sh + +sh['all'] = sh.all; +sh['highlight'] = sh.highlight; + +/** + * Checks if target DOM elements has specified CSS class. + * @param {DOMElement} target Target DOM element to check. + * @param {String} className Name of the CSS class to check for. + * @return {Boolean} Returns true if class name is present, false otherwise. + */ +function hasClass(target, className) +{ + return target.className.indexOf(className) != -1; +}; + +/** + * Adds CSS class name to the target DOM element. + * @param {DOMElement} target Target DOM element. + * @param {String} className New CSS class to add. + */ +function addClass(target, className) +{ + if (!hasClass(target, className)) + target.className += ' ' + className; +}; + +/** + * Removes CSS class name from the target DOM element. + * @param {DOMElement} target Target DOM element. + * @param {String} className CSS class to remove. + */ +function removeClass(target, className) +{ + target.className = target.className.replace(className, ''); +}; + +/** + * Converts the source to array object. Mostly used for function arguments and + * lists returned by getElementsByTagName() which aren't Array objects. + * @param {List} source Source list. + * @return {Array} Returns array. + */ +function toArray(source) +{ + var result = []; + + for (var i = 0; i < source.length; i++) + result.push(source[i]); + + return result; +}; + +/** + * Splits block of text into lines. + * @param {String} block Block of text. + * @return {Array} Returns array of lines. + */ +function splitLines(block) +{ + return block.split('\n'); +} + +/** + * Generates HTML ID for the highlighter. + * @param {String} highlighterId Highlighter ID. + * @return {String} Returns HTML ID. + */ +function getHighlighterId(id) +{ + var prefix = 'highlighter_'; + return id.indexOf(prefix) == 0 ? id : prefix + id; +}; + +/** + * Finds Highlighter instance by ID. + * @param {String} highlighterId Highlighter ID. + * @return {Highlighter} Returns instance of the highlighter. + */ +function getHighlighterById(id) +{ + return sh.vars.highlighters[getHighlighterId(id)]; +}; + +/** + * Finds highlighter's DIV container. + * @param {String} highlighterId Highlighter ID. + * @return {Element} Returns highlighter's DIV element. + */ +function getHighlighterDivById(id) +{ + return document.getElementById(getHighlighterId(id)); +}; + +/** + * Stores highlighter so that getHighlighterById() can do its thing. Each + * highlighter must call this method to preserve itself. + * @param {Highilghter} highlighter Highlighter instance. + */ +function storeHighlighter(highlighter) +{ + sh.vars.highlighters[getHighlighterId(highlighter.id)] = highlighter; +}; + +/** + * Looks for a child or parent node which has specified classname. + * Equivalent to jQuery's $(container).find(".className") + * @param {Element} target Target element. + * @param {String} search Class name or node name to look for. + * @param {Boolean} reverse If set to true, will go up the node tree instead of down. + * @return {Element} Returns found child or parent element on null. + */ +function findElement(target, search, reverse /* optional */) +{ + if (target == null) + return null; + + var nodes = reverse != true ? target.childNodes : [ target.parentNode ], + propertyToFind = { '#' : 'id', '.' : 'className' }[search.substr(0, 1)] || 'nodeName', + expectedValue, + found + ; + + expectedValue = propertyToFind != 'nodeName' + ? search.substr(1) + : search.toUpperCase() + ; + + // main return of the found node + if ((target[propertyToFind] || '').indexOf(expectedValue) != -1) + return target; + + for (var i = 0; nodes && i < nodes.length && found == null; i++) + found = findElement(nodes[i], search, reverse); + + return found; +}; + +/** + * Looks for a parent node which has specified classname. + * This is an alias tofindElement(container, className, true)
. + * @param {Element} target Target element. + * @param {String} className Class name to look for. + * @return {Element} Returns found parent element on null. + */ +function findParentElement(target, className) +{ + return findElement(target, className, true); +}; + +/** + * Finds an index of element in the array. + * @ignore + * @param {Object} searchElement + * @param {Number} fromIndex + * @return {Number} Returns index of element if found; -1 otherwise. + */ +function indexOf(array, searchElement, fromIndex) +{ + fromIndex = Math.max(fromIndex || 0, 0); + + for (var i = fromIndex; i < array.length; i++) + if(array[i] == searchElement) + return i; + + return -1; +}; + +/** + * Generates a unique element ID. + */ +function guid(prefix) +{ + return (prefix || '') + Math.round(Math.random() * 1000000).toString(); +}; + +/** + * Merges two objects. Values from obj2 override values in obj1. + * Function is NOT recursive and works only for one dimensional objects. + * @param {Object} obj1 First object. + * @param {Object} obj2 Second object. + * @return {Object} Returns combination of both objects. + */ +function merge(obj1, obj2) +{ + var result = {}, name; + + for (name in obj1) + result[name] = obj1[name]; + + for (name in obj2) + result[name] = obj2[name]; + + return result; +}; + +/** + * Attempts to convert string to boolean. + * @param {String} value Input string. + * @return {Boolean} Returns true if input was "true", false if input was "false" and value otherwise. + */ +function toBoolean(value) +{ + var result = { "true" : true, "false" : false }[value]; + return result == null ? value : result; +}; + +/** + * Opens up a centered popup window. + * @param {String} url URL to open in the window. + * @param {String} name Popup name. + * @param {int} width Popup width. + * @param {int} height Popup height. + * @param {String} options window.open() options. + * @return {Window} Returns window instance. + */ +function popup(url, name, width, height, options) +{ + var x = (screen.width - width) / 2, + y = (screen.height - height) / 2 + ; + + options += ', left=' + x + + ', top=' + y + + ', width=' + width + + ', height=' + height + ; + options = options.replace(/^,/, ''); + + var win = window.open(url, name, options); + win.focus(); + return win; +}; + +/** + * Adds event handler to the target object. + * @param {Object} obj Target object. + * @param {String} type Name of the event. + * @param {Function} func Handling function. + */ +function attachEvent(obj, type, func, scope) +{ + function handler(e) + { + e = e || window.event; + + if (!e.target) + { + e.target = e.srcElement; + e.preventDefault = function() + { + this.returnValue = false; + }; + } + + func.call(scope || window, e); + }; + + if (obj.attachEvent) + { + obj.attachEvent('on' + type, handler); + } + else + { + obj.addEventListener(type, handler, false); + } +}; + +/** + * Displays an alert. + * @param {String} str String to display. + */ +function alert(str) +{ + window.alert(sh.config.strings.alert + str); +}; + +/** + * Finds a brush by its alias. + * + * @param {String} alias Brush alias. + * @param {Boolean} showAlert Suppresses the alert if false. + * @return {Brush} Returns bursh constructor if found, null otherwise. + */ +function findBrush(alias, showAlert) +{ + var brushes = sh.vars.discoveredBrushes, + result = null + ; + + if (brushes == null) + { + brushes = {}; + + // Find all brushes + for (var brush in sh.brushes) + { + var info = sh.brushes[brush], + aliases = info.aliases + ; + + if (aliases == null) + continue; + + // keep the brush name + info.brushName = brush.toLowerCase(); + + for (var i = 0; i < aliases.length; i++) + brushes[aliases[i]] = brush; + } + + sh.vars.discoveredBrushes = brushes; + } + + result = sh.brushes[brushes[alias]]; + + if (result == null && showAlert != false) + alert(sh.config.strings.noBrush + alias); + + return result; +}; + +/** + * Executes a callback on each line and replaces each line with result from the callback. + * @param {Object} str Input string. + * @param {Object} callback Callback function taking one string argument and returning a string. + */ +function eachLine(str, callback) +{ + var lines = splitLines(str); + + for (var i = 0; i < lines.length; i++) + lines[i] = callback(lines[i], i); + + return lines.join('\n'); +}; + +/** + * This is a special trim which only removes first and last empty lines + * and doesn't affect valid leading space on the first line. + * + * @param {String} str Input string + * @return {String} Returns string without empty first and last lines. + */ +function trimFirstAndLastLines(str) +{ + return str.replace(/^[ ]*[\n]+|[\n]*[ ]*$/g, ''); +}; + +/** + * Parses key/value pairs into hash object. + * + * Understands the following formats: + * - name: word; + * - name: [word, word]; + * - name: "string"; + * - name: 'string'; + * + * For example: + * name1: value; name2: [value, value]; name3: 'value' + * + * @param {String} str Input string. + * @return {Object} Returns deserialized object. + */ +function parseParams(str) +{ + var match, + result = {}, + arrayRegex = new XRegExp("^\\[(?(.*?))\\]$"), + regex = new XRegExp( + "(? [\\w-]+)" + + "\\s*:\\s*" + + "(? " + + "[\\w-%#]+|" + // word + "\\[.*?\\]|" + // [] array + '".*?"|' + // "" string + "'.*?'" + // '' string + ")\\s*;?", + "g" + ) + ; + + while ((match = regex.exec(str)) != null) + { + var value = match.value + .replace(/^['"]|['"]$/g, '') // strip quotes from end of strings + ; + + // try to parse array value + if (value != null && arrayRegex.test(value)) + { + var m = arrayRegex.exec(value); + value = m.values.length > 0 ? m.values.split(/\s*,\s*/) : []; + } + + result[match.name] = value; + } + + return result; +}; + +/** + * Wraps each line of the string into tag with given style applied to it. + * + * @param {String} str Input string. + * @param {String} css Style name to apply to the string. + * @return {String} Returns input string with each line surrounded by tag. + */ +function wrapLinesWithCode(str, css) +{ + if (str == null || str.length == 0 || str == '\n') + return str; + + str = str.replace(/... to them so that + // leading spaces aren't included. + if (css != null) + str = eachLine(str, function(line) + { + if (line.length == 0) + return ''; + + var spaces = ''; + + line = line.replace(/^( | )+/, function(s) + { + spaces = s; + return ''; + }); + + if (line.length == 0) + return spaces; + + return spaces + '
' + line + '
'; + }); + + return str; +}; + +/** + * Pads number with zeros until it's length is the same as given length. + * + * @param {Number} number Number to pad. + * @param {Number} length Max string length with. + * @return {String} Returns a string padded with proper amount of '0'. + */ +function padNumber(number, length) +{ + var result = number.toString(); + + while (result.length < length) + result = '0' + result; + + return result; +}; + +/** + * Replaces tabs with spaces. + * + * @param {String} code Source code. + * @param {Number} tabSize Size of the tab. + * @return {String} Returns code with all tabs replaces by spaces. + */ +function processTabs(code, tabSize) +{ + var tab = ''; + + for (var i = 0; i < tabSize; i++) + tab += ' '; + + return code.replace(/\t/g, tab); +}; + +/** + * Replaces tabs with smart spaces. + * + * @param {String} code Code to fix the tabs in. + * @param {Number} tabSize Number of spaces in a column. + * @return {String} Returns code with all tabs replaces with roper amount of spaces. + */ +function processSmartTabs(code, tabSize) +{ + var lines = splitLines(code), + tab = '\t', + spaces = '' + ; + + // Create a string with 1000 spaces to copy spaces from... + // It's assumed that there would be no indentation longer than that. + for (var i = 0; i < 50; i++) + spaces += ' '; // 20 spaces * 50 + + // This function inserts specified amount of spaces in the string + // where a tab is while removing that given tab. + function insertSpaces(line, pos, count) + { + return line.substr(0, pos) + + spaces.substr(0, count) + + line.substr(pos + 1, line.length) // pos + 1 will get rid of the tab + ; + }; + + // Go through all the lines and do the 'smart tabs' magic. + code = eachLine(code, function(line) + { + if (line.indexOf(tab) == -1) + return line; + + var pos = 0; + + while ((pos = line.indexOf(tab)) != -1) + { + // This is pretty much all there is to the 'smart tabs' logic. + // Based on the position within the line and size of a tab, + // calculate the amount of spaces we need to insert. + var spaces = tabSize - pos % tabSize; + line = insertSpaces(line, pos, spaces); + } + + return line; + }); + + return code; +}; + +/** + * Performs various string fixes based on configuration. + */ +function fixInputString(str) +{ + var br = /
|<br\s*\/?>/gi; + + if (sh.config.bloggerMode == true) + str = str.replace(br, '\n'); + + if (sh.config.stripBrs == true) + str = str.replace(br, ''); + + return str; +}; + +/** + * Removes all white space at the begining and end of a string. + * + * @param {String} str String to trim. + * @return {String} Returns string without leading and following white space characters. + */ +function trim(str) +{ + return str.replace(/^\s+|\s+$/g, ''); +}; + +/** + * Unindents a block of text by the lowest common indent amount. + * @param {String} str Text to unindent. + * @return {String} Returns unindented text block. + */ +function unindent(str) +{ + var lines = splitLines(fixInputString(str)), + indents = new Array(), + regex = /^\s*/, + min = 1000 + ; + + // go through every line and check for common number of indents + for (var i = 0; i < lines.length && min > 0; i++) + { + var line = lines[i]; + + if (trim(line).length == 0) + continue; + + var matches = regex.exec(line); + + // In the event that just one line doesn't have leading white space + // we can't unindent anything, so bail completely. + if (matches == null) + return str; + + min = Math.min(matches[0].length, min); + } + + // trim minimum common number of white space from the begining of every line + if (min > 0) + for (var i = 0; i < lines.length; i++) + lines[i] = lines[i].substr(min); + + return lines.join('\n'); +}; + +/** + * Callback method for Array.sort() which sorts matches by + * index position and then by length. + * + * @param {Match} m1 Left object. + * @param {Match} m2 Right object. + * @return {Number} Returns -1, 0 or -1 as a comparison result. + */ +function matchesSortCallback(m1, m2) +{ + // sort matches by index first + if(m1.index < m2.index) + return -1; + else if(m1.index > m2.index) + return 1; + else + { + // if index is the same, sort by length + if(m1.length < m2.length) + return -1; + else if(m1.length > m2.length) + return 1; + } + + return 0; +}; + +/** + * Executes given regular expression on provided code and returns all + * matches that are found. + * + * @param {String} code Code to execute regular expression on. + * @param {Object} regex Regular expression item info fromregexList
collection. + * @return {Array} Returns a list of Match objects. + */ +function getMatches(code, regexInfo) +{ + function defaultAdd(match, regexInfo) + { + return match[0]; + }; + + var index = 0, + match = null, + matches = [], + func = regexInfo.func ? regexInfo.func : defaultAdd + ; + + while((match = regexInfo.regex.exec(code)) != null) + { + var resultMatch = func(match, regexInfo); + + if (typeof(resultMatch) == 'string') + resultMatch = [new sh.Match(resultMatch, match.index, regexInfo.css)]; + + matches = matches.concat(resultMatch); + } + + return matches; +}; + +/** + * Turns all URLs in the code into tags. + * @param {String} code Input code. + * @return {String} Returns code with
' + spaces + '
' : '') + line
+ );
+ }
+
+ return html;
+ },
+
+ /**
+ * Returns HTML for the table title or empty string if title is null.
+ */
+ getTitleHtml: function(title)
+ {
+ return title ? '' + this.getLineNumbersHtml(code) + ' | ' : '') + + ''
+ + ' '
+ + html
+ + ' '
+ + ' | '
+ + '
.*?)" +
+ "(?" + regexGroup.right.source + ")",
+ "sgi"
+ )
+ };
+ }
+}; // end of Highlighter
+
+return sh;
+}(); // end of anonymous function
+
+// CommonJS
+typeof(exports) != 'undefined' ? exports['SyntaxHighlighter'] = SyntaxHighlighter : null;
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shLegacy.js b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shLegacy.js
new file mode 100644
index 0000000..36951c9
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/src/shLegacy.js
@@ -0,0 +1,157 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+var dp = {
+ SyntaxHighlighter : {}
+};
+
+dp.SyntaxHighlighter = {
+ parseParams: function(
+ input,
+ showGutter,
+ showControls,
+ collapseAll,
+ firstLine,
+ showColumns
+ )
+ {
+ function getValue(list, name)
+ {
+ var regex = new XRegExp('^' + name + '\\[(?\\w+)\\]$', 'gi'),
+ match = null
+ ;
+
+ for (var i = 0; i < list.length; i++)
+ if ((match = regex.exec(list[i])) != null)
+ return match.value;
+
+ return null;
+ };
+
+ function defaultValue(value, def)
+ {
+ return value != null ? value : def;
+ };
+
+ function asString(value)
+ {
+ return value != null ? value.toString() : null;
+ };
+
+ var parts = input.split(':'),
+ brushName = parts[0],
+ options = {},
+ straight = { 'true' : true }
+ reverse = { 'true' : false },
+ result = null,
+ defaults = SyntaxHighlighter.defaults
+ ;
+
+ for (var i in parts)
+ options[parts[i]] = 'true';
+
+ showGutter = asString(defaultValue(showGutter, defaults.gutter));
+ showControls = asString(defaultValue(showControls, defaults.toolbar));
+ collapseAll = asString(defaultValue(collapseAll, defaults.collapse));
+ showColumns = asString(defaultValue(showColumns, defaults.ruler));
+ firstLine = asString(defaultValue(firstLine, defaults['first-line']));
+
+ return {
+ brush : brushName,
+ gutter : defaultValue(reverse[options.nogutter], showGutter),
+ toolbar : defaultValue(reverse[options.nocontrols], showControls),
+ collapse : defaultValue(straight[options.collapse], collapseAll),
+ // ruler : defaultValue(straight[options.showcolumns], showColumns),
+ 'first-line' : defaultValue(getValue(parts, 'firstline'), firstLine)
+ };
+ },
+
+ HighlightAll: function(
+ name,
+ showGutter /* optional */,
+ showControls /* optional */,
+ collapseAll /* optional */,
+ firstLine /* optional */,
+ showColumns /* optional */
+ )
+ {
+ function findValue()
+ {
+ var a = arguments;
+
+ for (var i = 0; i < a.length; i++)
+ {
+ if (a[i] === null)
+ continue;
+
+ if (typeof(a[i]) == 'string' && a[i] != '')
+ return a[i] + '';
+
+ if (typeof(a[i]) == 'object' && a[i].value != '')
+ return a[i].value + '';
+ }
+
+ return null;
+ };
+
+ function findTagsByName(list, name, tagName)
+ {
+ var tags = document.getElementsByTagName(tagName);
+
+ for (var i = 0; i < tags.length; i++)
+ if (tags[i].getAttribute('name') == name)
+ list.push(tags[i]);
+ }
+
+ var elements = [],
+ highlighter = null,
+ registered = {},
+ propertyName = 'innerHTML'
+ ;
+
+ // for some reason IE doesn't find by name, however it does see them just fine by tag name...
+ findTagsByName(elements, name, 'pre');
+ findTagsByName(elements, name, 'textarea');
+
+ if (elements.length === 0)
+ return;
+
+ for (var i = 0; i < elements.length; i++)
+ {
+ var element = elements[i],
+ params = findValue(
+ element.attributes['class'], element.className,
+ element.attributes['language'], element.language
+ ),
+ language = ''
+ ;
+
+ if (params === null)
+ continue;
+
+ params = dp.SyntaxHighlighter.parseParams(
+ params,
+ showGutter,
+ showControls,
+ collapseAll,
+ firstLine,
+ showColumns
+ );
+
+ SyntaxHighlighter.highlight(params, element);
+ }
+ }
+};
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCore.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCore.css
new file mode 100644
index 0000000..34f6864
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCore.css
@@ -0,0 +1,226 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDefault.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDefault.css
new file mode 100644
index 0000000..08f9e10
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDefault.css
@@ -0,0 +1,328 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #e0e0e0 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: black !important;
+}
+.syntaxhighlighter table caption {
+ color: black !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #6ce26c !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #6ce26c !important;
+ color: white !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: blue !important;
+ background: white !important;
+ border: 1px solid #6ce26c !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: blue !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: red !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #6ce26c !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: black !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: black !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: blue !important;
+}
+.syntaxhighlighter .keyword {
+ color: #006699 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #006699 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: red !important;
+}
+
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDjango.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDjango.css
new file mode 100644
index 0000000..1db1f70
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreDjango.css
@@ -0,0 +1,331 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #233729 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: #f8f8f8 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #497958 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #41a83e !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #41a83e !important;
+ color: #0a2b1d !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #96dd3b !important;
+ background: black !important;
+ border: 1px solid #41a83e !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #96dd3b !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #41a83e !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #ffe862 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #f8f8f8 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #336442 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #9df39f !important;
+}
+.syntaxhighlighter .keyword {
+ color: #96dd3b !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #91bb9e !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #96dd3b !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #eb939a !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #91bb9e !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #edef7d !important;
+}
+
+.syntaxhighlighter .comments {
+ font-style: italic !important;
+}
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEclipse.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEclipse.css
new file mode 100644
index 0000000..a45de9f
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEclipse.css
@@ -0,0 +1,339 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #c3defe !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: black !important;
+}
+.syntaxhighlighter .gutter {
+ color: #787878 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #d4d0c8 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #d4d0c8 !important;
+ color: white !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #3f5fbf !important;
+ background: white !important;
+ border: 1px solid #d4d0c8 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #3f5fbf !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #a0a0a0 !important;
+ background: #d4d0c8 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #a0a0a0 !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: red !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: black !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #3f5fbf !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #2a00ff !important;
+}
+.syntaxhighlighter .keyword {
+ color: #7f0055 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #646464 !important;
+}
+.syntaxhighlighter .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #7f0055 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: red !important;
+}
+
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .xml .keyword {
+ color: #3f7f7f !important;
+ font-weight: normal !important;
+}
+.syntaxhighlighter .xml .color1, .syntaxhighlighter .xml .color1 a {
+ color: #7f007f !important;
+}
+.syntaxhighlighter .xml .string {
+ font-style: italic !important;
+ color: #2a00ff !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEmacs.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEmacs.css
new file mode 100644
index 0000000..706c77a
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreEmacs.css
@@ -0,0 +1,324 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #2a3133 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #990000 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #990000 !important;
+ color: black !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #ebdb8d !important;
+ background: black !important;
+ border: 1px solid #990000 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #ebdb8d !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #990000 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #9ccff4 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #ff9e7b !important;
+}
+.syntaxhighlighter .keyword {
+ color: aqua !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #aec4de !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #81cef9 !important;
+}
+.syntaxhighlighter .constants {
+ color: #ff9e7b !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: aqua !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #ebdb8d !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #aec4de !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreFadeToGrey.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreFadeToGrey.css
new file mode 100644
index 0000000..6101eba
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreFadeToGrey.css
@@ -0,0 +1,328 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #2c2c29 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: white !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #3185b9 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #3185b9 !important;
+ color: #121212 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #3185b9 !important;
+ background: black !important;
+ border: 1px solid #3185b9 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #3185b9 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #d01d33 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #3185b9 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #96daff !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: white !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #696854 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #e3e658 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #d01d33 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #435a5f !important;
+}
+.syntaxhighlighter .variable {
+ color: #898989 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #aaaaaa !important;
+}
+.syntaxhighlighter .constants {
+ color: #96daff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #d01d33 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #ffc074 !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #4a8cdb !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #96daff !important;
+}
+
+.syntaxhighlighter .functions {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMDUltra.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMDUltra.css
new file mode 100644
index 0000000..2923ce7
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMDUltra.css
@@ -0,0 +1,324 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #253e5a !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: lime !important;
+}
+.syntaxhighlighter .gutter {
+ color: #38566f !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #222222 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #428bdd !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: lime !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #aaaaff !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #aaaaff !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #9ccff4 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: lime !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: lime !important;
+}
+.syntaxhighlighter .keyword {
+ color: #aaaaff !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .variable {
+ color: aqua !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff8000 !important;
+}
+.syntaxhighlighter .constants {
+ color: yellow !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #aaaaff !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: red !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: yellow !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMidnight.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMidnight.css
new file mode 100644
index 0000000..e3733ee
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreMidnight.css
@@ -0,0 +1,324 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #253e5a !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: #38566f !important;
+}
+.syntaxhighlighter table caption {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #0f192a !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #428bdd !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #1dc116 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #d1edff !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #1dc116 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #b43d3d !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #b43d3d !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #f8bb00 !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: white !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreRDark.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreRDark.css
new file mode 100644
index 0000000..d093683
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shCoreRDark.css
@@ -0,0 +1,324 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter a,
+.syntaxhighlighter div,
+.syntaxhighlighter code,
+.syntaxhighlighter table,
+.syntaxhighlighter table td,
+.syntaxhighlighter table tr,
+.syntaxhighlighter table tbody,
+.syntaxhighlighter table thead,
+.syntaxhighlighter table caption,
+.syntaxhighlighter textarea {
+ -moz-border-radius: 0 0 0 0 !important;
+ -webkit-border-radius: 0 0 0 0 !important;
+ background: none !important;
+ border: 0 !important;
+ bottom: auto !important;
+ float: none !important;
+ height: auto !important;
+ left: auto !important;
+ line-height: 1.1em !important;
+ margin: 0 !important;
+ outline: 0 !important;
+ overflow: visible !important;
+ padding: 0 !important;
+ position: static !important;
+ right: auto !important;
+ text-align: left !important;
+ top: auto !important;
+ vertical-align: baseline !important;
+ width: auto !important;
+ box-sizing: content-box !important;
+ font-family: "Consolas", "Bitstream Vera Sans Mono", "Courier New", Courier, monospace !important;
+ font-weight: normal !important;
+ font-style: normal !important;
+ font-size: 1em !important;
+ min-height: inherit !important;
+ min-height: auto !important;
+}
+
+.syntaxhighlighter {
+ width: 100% !important;
+ margin: 1em 0 1em 0 !important;
+ position: relative !important;
+ overflow: auto !important;
+ font-size: 1em !important;
+}
+.syntaxhighlighter.source {
+ overflow: hidden !important;
+}
+.syntaxhighlighter .bold {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .italic {
+ font-style: italic !important;
+}
+.syntaxhighlighter .line {
+ white-space: pre !important;
+}
+.syntaxhighlighter table {
+ width: 100% !important;
+}
+.syntaxhighlighter table caption {
+ text-align: left !important;
+ padding: .5em 0 0.5em 1em !important;
+}
+.syntaxhighlighter table td.code {
+ width: 100% !important;
+}
+.syntaxhighlighter table td.code .container {
+ position: relative !important;
+}
+.syntaxhighlighter table td.code .container textarea {
+ box-sizing: border-box !important;
+ position: absolute !important;
+ left: 0 !important;
+ top: 0 !important;
+ width: 100% !important;
+ height: 100% !important;
+ border: none !important;
+ background: white !important;
+ padding-left: 1em !important;
+ overflow: hidden !important;
+ white-space: pre !important;
+}
+.syntaxhighlighter table td.gutter .line {
+ text-align: right !important;
+ padding: 0 0.5em 0 1em !important;
+}
+.syntaxhighlighter table td.code .line {
+ padding: 0 1em !important;
+}
+.syntaxhighlighter.nogutter td.code .container textarea, .syntaxhighlighter.nogutter td.code .line {
+ padding-left: 0em !important;
+}
+.syntaxhighlighter.show {
+ display: block !important;
+}
+.syntaxhighlighter.collapsed table {
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ padding: 0.1em 0.8em 0em 0.8em !important;
+ font-size: 1em !important;
+ position: static !important;
+ width: auto !important;
+ height: auto !important;
+}
+.syntaxhighlighter.collapsed .toolbar span {
+ display: inline !important;
+ margin-right: 1em !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a {
+ padding: 0 !important;
+ display: none !important;
+}
+.syntaxhighlighter.collapsed .toolbar span a.expandSource {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar {
+ position: absolute !important;
+ right: 1px !important;
+ top: 1px !important;
+ width: 11px !important;
+ height: 11px !important;
+ font-size: 10px !important;
+ z-index: 10 !important;
+}
+.syntaxhighlighter .toolbar span.title {
+ display: inline !important;
+}
+.syntaxhighlighter .toolbar a {
+ display: block !important;
+ text-align: center !important;
+ text-decoration: none !important;
+ padding-top: 1px !important;
+}
+.syntaxhighlighter .toolbar a.expandSource {
+ display: none !important;
+}
+.syntaxhighlighter.ie {
+ font-size: .9em !important;
+ padding: 1px 0 1px 0 !important;
+}
+.syntaxhighlighter.ie .toolbar {
+ line-height: 8px !important;
+}
+.syntaxhighlighter.ie .toolbar a {
+ padding-top: 0px !important;
+}
+.syntaxhighlighter.printing .line.alt1 .content,
+.syntaxhighlighter.printing .line.alt2 .content,
+.syntaxhighlighter.printing .line.highlighted .number,
+.syntaxhighlighter.printing .line.highlighted.alt1 .content,
+.syntaxhighlighter.printing .line.highlighted.alt2 .content {
+ background: none !important;
+}
+.syntaxhighlighter.printing .line .number {
+ color: #bbbbbb !important;
+}
+.syntaxhighlighter.printing .line .content {
+ color: black !important;
+}
+.syntaxhighlighter.printing .toolbar {
+ display: none !important;
+}
+.syntaxhighlighter.printing a {
+ text-decoration: none !important;
+}
+.syntaxhighlighter.printing .plain, .syntaxhighlighter.printing .plain a {
+ color: black !important;
+}
+.syntaxhighlighter.printing .comments, .syntaxhighlighter.printing .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter.printing .string, .syntaxhighlighter.printing .string a {
+ color: blue !important;
+}
+.syntaxhighlighter.printing .keyword {
+ color: #006699 !important;
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter.printing .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter.printing .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter.printing .script {
+ font-weight: bold !important;
+}
+.syntaxhighlighter.printing .color1, .syntaxhighlighter.printing .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter.printing .color2, .syntaxhighlighter.printing .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter.printing .color3, .syntaxhighlighter.printing .color3 a {
+ color: red !important;
+}
+.syntaxhighlighter.printing .break, .syntaxhighlighter.printing .break a {
+ color: black !important;
+}
+
+.syntaxhighlighter {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #323e41 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter table caption {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #1b2426 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #5ba1cf !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #5ba1cf !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #5ce638 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #878a85 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #5ce638 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #5ba1cf !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #435a5f !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #5ba1cf !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: white !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDefault.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDefault.css
new file mode 100644
index 0000000..6a121ad
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDefault.css
@@ -0,0 +1,119 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: black !important;
+}
+.syntaxhighlighter table caption {
+ color: black !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ background-color: #E7E5DC !important;
+ border-right: 3px solid #6ce26c !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #6ce26c !important;
+ color: white !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: blue !important;
+ background: white !important;
+ border: 1px solid #6ce26c !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: blue !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: red !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ display : none;
+ background: #6ce26c !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: black !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: black !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #008200 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: blue !important;
+}
+.syntaxhighlighter .keyword {
+ color: #006699 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: gray !important;
+}
+.syntaxhighlighter .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #006699 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: red !important;
+}
+
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDjango.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDjango.css
new file mode 100644
index 0000000..d8b4313
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeDjango.css
@@ -0,0 +1,120 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #0a2b1d !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #233729 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: #f8f8f8 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #497958 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #41a83e !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #41a83e !important;
+ color: #0a2b1d !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #96dd3b !important;
+ background: black !important;
+ border: 1px solid #41a83e !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #96dd3b !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #41a83e !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #ffe862 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #f8f8f8 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #336442 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #9df39f !important;
+}
+.syntaxhighlighter .keyword {
+ color: #96dd3b !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #91bb9e !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #96dd3b !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #eb939a !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #91bb9e !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #edef7d !important;
+}
+
+.syntaxhighlighter .comments {
+ font-style: italic !important;
+}
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEclipse.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEclipse.css
new file mode 100644
index 0000000..77377d9
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEclipse.css
@@ -0,0 +1,128 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: white !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #c3defe !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: black !important;
+}
+.syntaxhighlighter .gutter {
+ color: #787878 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #d4d0c8 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #d4d0c8 !important;
+ color: white !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #3f5fbf !important;
+ background: white !important;
+ border: 1px solid #d4d0c8 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #3f5fbf !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #a0a0a0 !important;
+ background: #d4d0c8 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #a0a0a0 !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: red !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: black !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #3f5fbf !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #2a00ff !important;
+}
+.syntaxhighlighter .keyword {
+ color: #7f0055 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #646464 !important;
+}
+.syntaxhighlighter .variable {
+ color: #aa7700 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .constants {
+ color: #0066cc !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #7f0055 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: gray !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff1493 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: red !important;
+}
+
+.syntaxhighlighter .keyword {
+ font-weight: bold !important;
+}
+.syntaxhighlighter .xml .keyword {
+ color: #3f7f7f !important;
+ font-weight: normal !important;
+}
+.syntaxhighlighter .xml .color1, .syntaxhighlighter .xml .color1 a {
+ color: #7f007f !important;
+}
+.syntaxhighlighter .xml .string {
+ font-style: italic !important;
+ color: #2a00ff !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEmacs.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEmacs.css
new file mode 100644
index 0000000..dae5053
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeEmacs.css
@@ -0,0 +1,113 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: black !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #2a3133 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #990000 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #990000 !important;
+ color: black !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #ebdb8d !important;
+ background: black !important;
+ border: 1px solid #990000 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #ebdb8d !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #990000 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #9ccff4 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #d3d3d3 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #ff9e7b !important;
+}
+.syntaxhighlighter .keyword {
+ color: aqua !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #aec4de !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #81cef9 !important;
+}
+.syntaxhighlighter .constants {
+ color: #ff9e7b !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: aqua !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #ebdb8d !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #ff7d27 !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #aec4de !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeFadeToGrey.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeFadeToGrey.css
new file mode 100644
index 0000000..8fbd871
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeFadeToGrey.css
@@ -0,0 +1,117 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #121212 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #2c2c29 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: white !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #3185b9 !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #3185b9 !important;
+ color: #121212 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #3185b9 !important;
+ background: black !important;
+ border: 1px solid #3185b9 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #3185b9 !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #d01d33 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #3185b9 !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #96daff !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: white !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #696854 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #e3e658 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #d01d33 !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #435a5f !important;
+}
+.syntaxhighlighter .variable {
+ color: #898989 !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #aaaaaa !important;
+}
+.syntaxhighlighter .constants {
+ color: #96daff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #d01d33 !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #ffc074 !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: #4a8cdb !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #96daff !important;
+}
+
+.syntaxhighlighter .functions {
+ font-weight: bold !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMDUltra.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMDUltra.css
new file mode 100644
index 0000000..f4db39c
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMDUltra.css
@@ -0,0 +1,113 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #222222 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #253e5a !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: white !important;
+}
+.syntaxhighlighter table caption {
+ color: lime !important;
+}
+.syntaxhighlighter .gutter {
+ color: #38566f !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #222222 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #428bdd !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: lime !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #aaaaff !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #aaaaff !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #9ccff4 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: lime !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: lime !important;
+}
+.syntaxhighlighter .keyword {
+ color: #aaaaff !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .variable {
+ color: aqua !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ff8000 !important;
+}
+.syntaxhighlighter .constants {
+ color: yellow !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #aaaaff !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: red !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: yellow !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMidnight.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMidnight.css
new file mode 100644
index 0000000..c49563c
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeMidnight.css
@@ -0,0 +1,113 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #0f192a !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #253e5a !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: #38566f !important;
+}
+.syntaxhighlighter table caption {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #0f192a !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #428bdd !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #1dc116 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: #d1edff !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #d1edff !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #428bdd !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #1dc116 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #b43d3d !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #8aa6c1 !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #f7e741 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #b43d3d !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #f8bb00 !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: white !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeRDark.css b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeRDark.css
new file mode 100644
index 0000000..6305a10
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/SyntaxHighlighter/styles/shThemeRDark.css
@@ -0,0 +1,113 @@
+/**
+ * SyntaxHighlighter
+ * http://alexgorbatchev.com/SyntaxHighlighter
+ *
+ * SyntaxHighlighter is donationware. If you are using it, please donate.
+ * http://alexgorbatchev.com/SyntaxHighlighter/donate.html
+ *
+ * @version
+ * 3.0.83 (July 02 2010)
+ *
+ * @copyright
+ * Copyright (C) 2004-2010 Alex Gorbatchev.
+ *
+ * @license
+ * Dual licensed under the MIT and GPL licenses.
+ */
+.syntaxhighlighter {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.alt1 {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.alt2 {
+ background-color: #1b2426 !important;
+}
+.syntaxhighlighter .line.highlighted.alt1, .syntaxhighlighter .line.highlighted.alt2 {
+ background-color: #323e41 !important;
+}
+.syntaxhighlighter .line.highlighted.number {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter table caption {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter .gutter {
+ color: #afafaf !important;
+}
+.syntaxhighlighter .gutter .line {
+ border-right: 3px solid #435a5f !important;
+}
+.syntaxhighlighter .gutter .line.highlighted {
+ background-color: #435a5f !important;
+ color: #1b2426 !important;
+}
+.syntaxhighlighter.printing .line .content {
+ border: none !important;
+}
+.syntaxhighlighter.collapsed {
+ overflow: visible !important;
+}
+.syntaxhighlighter.collapsed .toolbar {
+ color: #5ba1cf !important;
+ background: black !important;
+ border: 1px solid #435a5f !important;
+}
+.syntaxhighlighter.collapsed .toolbar a {
+ color: #5ba1cf !important;
+}
+.syntaxhighlighter.collapsed .toolbar a:hover {
+ color: #5ce638 !important;
+}
+.syntaxhighlighter .toolbar {
+ color: white !important;
+ background: #435a5f !important;
+ border: none !important;
+}
+.syntaxhighlighter .toolbar a {
+ color: white !important;
+}
+.syntaxhighlighter .toolbar a:hover {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .plain, .syntaxhighlighter .plain a {
+ color: #b9bdb6 !important;
+}
+.syntaxhighlighter .comments, .syntaxhighlighter .comments a {
+ color: #878a85 !important;
+}
+.syntaxhighlighter .string, .syntaxhighlighter .string a {
+ color: #5ce638 !important;
+}
+.syntaxhighlighter .keyword {
+ color: #5ba1cf !important;
+}
+.syntaxhighlighter .preprocessor {
+ color: #435a5f !important;
+}
+.syntaxhighlighter .variable {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .value {
+ color: #009900 !important;
+}
+.syntaxhighlighter .functions {
+ color: #ffaa3e !important;
+}
+.syntaxhighlighter .constants {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .script {
+ font-weight: bold !important;
+ color: #5ba1cf !important;
+ background-color: none !important;
+}
+.syntaxhighlighter .color1, .syntaxhighlighter .color1 a {
+ color: #e0e8ff !important;
+}
+.syntaxhighlighter .color2, .syntaxhighlighter .color2 a {
+ color: white !important;
+}
+.syntaxhighlighter .color3, .syntaxhighlighter .color3 a {
+ color: #ffaa3e !important;
+}
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/bootstrap.js b/upstream/clipper-6.4.2/Documentation/Scripts/bootstrap.js
new file mode 100644
index 0000000..de87089
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/bootstrap.js
@@ -0,0 +1,2 @@
+// This file may be used to bootstrap the DOM via JavaScript...
+SyntaxHighlighter.all();
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/expandable.js b/upstream/clipper-6.4.2/Documentation/Scripts/expandable.js
new file mode 100644
index 0000000..548fb57
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/expandable.js
@@ -0,0 +1,190 @@
+/*
+ * Expandable list implementation.
+ * by David Lindquist
+ * See:
+ * http://www.gazingus.org/html/DOM-Scripted_Lists_Revisited.html
+ * Modifies lists so that sublists can be hidden and shown by means of
+ * a switch. The switch is a node inserted into the DOM tree as the
+ * first child of the list item containing the sublist.
+ */
+
+// The script will only be applied to lists containing this class name,
+// e.g.: ";
+var p = 0;
+var j = 0;
+
+while (isDefined("td_" + ++j)) {
+ sH += "" : ">";
+ sH += eval("td_" + j) + " ";
+ if (isDefined("td_" + j + "_1"))
+ pT[p++] = "_" + j;
+}
+
+sH += " ";
+sH += "
";
+document.write(sH);
+
+for (var q = 0; typeof(pT[q]) != "undefined"; q++) {
+ sT = pT[q];
+ sH = "";
+ j = 0;
+ sH += "" : ">";
+ sH += eval("td" + sT + "_" + j) + " ";
+ if (isDefined("td" + sT + "_" + j + "_1"))
+ pT[p++] = sT + "_" + j;
+ }
+ sH += "
";
+ document.write(sH);
+}
+document.getElementById("mainmenu").style.visibility = "visible";
+
diff --git a/upstream/clipper-6.4.2/Documentation/Styles/default.css b/upstream/clipper-6.4.2/Documentation/Styles/default.css
new file mode 100644
index 0000000..12dbde6
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Styles/default.css
@@ -0,0 +1,304 @@
+p.Body {
+ margin-left: 1cm;
+ margin-right: 0.5cm;
+}
+
+p.Hierarchy {
+ margin-top: 0;
+ margin-left : 1cm;
+ margin-bottom : 0;
+ font-size : 90%;
+}
+
+.EmptyRef {
+ font-weight: bold;
+}
+
+.API {
+ color: #700070;
+ font-style: italic;
+}
+
+.Code {
+ margin-left: 1cm;
+ margin-right: 1cm;
+ margin-top: 0px;
+ margin-bottom: 0px;
+}
+
+p.Decl {
+ font-family: "Courier New", Courier, monospace;
+ background-color: #E0E0E0;
+ padding-top: 3pt;
+ padding-right: 4pt;
+ padding-left: 6pt;
+ padding-bottom: 3pt;
+ margin-left: 1cm;
+ margin-top: 0px;
+ margin-right: 0.5cm;
+ margin-bottom: 0px;
+}
+
+p.Decl2 {
+ font-family: "Courier New", Courier, monospace;
+ background-color: #99FF99;
+ padding-top: 3pt;
+ padding-right: 4pt;
+ padding-left: 6pt;
+ padding-bottom: 3pt;
+ margin-left: 1cm;
+ margin-top: 0px;
+ margin-right: 0.5cm;
+ margin-bottom: 0px;
+ font-size : 100%;
+}
+
+p.Decl3 {
+ font-family: "Courier New", Courier, monospace;
+ background-color: #FFBBCC;
+ padding-top: 3pt;
+ padding-right: 4pt;
+ padding-left: 6pt;
+ padding-bottom: 3pt;
+ margin-left: 1cm;
+ margin-top: 0px;
+ margin-right: 0.5cm;
+ margin-bottom: 0px;
+ font-size : 100%;
+}
+
+p.Decl4 {
+ font-family: Verdana, Tahoma, serif;
+ padding-top: 3pt;
+ padding-right: 4pt;
+ padding-left: 6pt;
+ padding-bottom: 3pt;
+ margin-left: 1cm;
+ margin-top: 0px;
+ margin-right: 0.5cm;
+ margin-bottom: 0px;
+}
+
+p.Decl5 {
+ font-family: Verdana, Tahoma, serif;
+ background-color: #99FF99;
+ padding-top: 3pt;
+ padding-right: 4pt;
+ padding-left: 6pt;
+ padding-bottom: 3pt;
+ margin-left: 1cm;
+ margin-top: 0px;
+ margin-right: 0.5cm;
+ margin-bottom: 0px;
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+
+
+
+
+
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+
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+
+
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+
+
+
+
diff --git a/upstream/clipper-6.4.2/License.txt b/upstream/clipper-6.4.2/License.txt
new file mode 100644
index 0000000..3d94797
--- /dev/null
+++ b/upstream/clipper-6.4.2/License.txt
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+Boost Software License - Version 1.0 - August 17th, 2003
+http://www.boost.org/LICENSE_1_0.txt
+
+Permission is hereby granted, free of charge, to any person or organization
+obtaining a copy of the software and accompanying documentation covered by
+this license (the "Software") to use, reproduce, display, distribute,
+execute, and transmit the Software, and to prepare derivative works of the
+Software, and to permit third-parties to whom the Software is furnished to
+do so, all subject to the following:
+
+The copyright notices in the Software and this entire statement, including
+the above license grant, this restriction and the following disclaimer,
+must be included in all copies of the Software, in whole or in part, and
+all derivative works of the Software, unless such copies or derivative
+works are solely in the form of machine-executable object code generated by
+a source language processor.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/upstream/clipper-6.4.2/README b/upstream/clipper-6.4.2/README
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index 0000000..a3ed26f
--- /dev/null
+++ b/upstream/clipper-6.4.2/README
@@ -0,0 +1,413 @@
+=====================================================================
+Clipper Change Log
+=====================================================================
+v6.4.2 (27 February 2017) Rev 512
+* Several minor bugfixes: #152 #160 #161 #162
+
+v6.4 (2 July 2015) Rev 495
+* Numerous generally minor bugfixes
+
+v6.2.1 (31 October 2014) Rev 482
+* Bugfix in ClipperOffset.Execute where the Polytree.IsHole property
+ was returning incorrect values with negative offsets
+* Very minor improvement to join rounding in ClipperOffset
+* Fixed CPP OpenGL demo.
+
+v6.2.0 (17 October 2014) Rev 477
+* Numerous minor bugfixes, too many to list.
+ (See revisions 454-475 in Sourceforge Repository)
+* The ZFillFunction (custom callback function) has had its parameters
+ changed.
+* Curves demo removed (temporarily).
+* Deprecated functions have been removed.
+
+v6.1.5 (26 February 2014) Rev 460
+* Improved the joining of output polygons sharing a common edge
+ when those common edges are horizontal.
+* Fixed a bug in ClipperOffset.AddPath() which would produce
+ incorrect solutions when open paths were added before closed paths.
+* Minor code tidy and performance improvement
+
+v6.1.4 (6 February 2014)
+* Fixed bugs in MinkowskiSum
+* Fixed minor bug when using Clipper.ForceSimplify.
+* Modified use_xyz callback so that all 4 vertices around an
+ intersection point are now passed to the callback function.
+
+v6.1.3a (22 January 2014) Rev 453
+* Fixed buggy PointInPolygon function (C++ and C# only).
+ Note this bug only affected the newly exported function, the
+ internal PointInPolygon function used by Clipper was OK.
+
+v6.1.3 (19 January 2014) Rev 452
+* Fixed potential endless loop condition when adding open
+ paths to Clipper.
+* Fixed missing implementation of SimplifyPolygon function
+ in C++ code.
+* Fixed incorrect upper range constant for polygon coordinates
+ in Delphi code.
+* Added PointInPolygon function.
+* Overloaded MinkowskiSum function to accommodate multi-contour
+ paths.
+
+v6.1.2 (15 December 2013) Rev 444
+* Fixed broken C++ header file.
+* Minor improvement to joining polygons.
+
+v6.1.1 (13 December 2013) Rev 441
+* Fixed a couple of bugs affecting open paths that could
+ raise unhandled exceptions.
+
+v6.1.0 (12 December 2013)
+* Deleted: Previously deprecated code has been removed.
+* Modified: The OffsetPaths function is now deprecated as it has
+ been replaced by the ClipperOffset class which is much more
+ flexible.
+* Bugfixes: Several minor bugs have been fixed including
+ occasionally an incorrect nesting within the PolyTree structure.
+
+v6.0.0 (30 October 2013)
+* Added: Open path (polyline) clipping. A new 'Curves' demo
+ application showcases this (see the 'Curves' directory).
+* Update: Major improvement in the merging of
+ shared/collinear edges in clip solutions (see Execute).
+* Added: The IntPoint structure now has an optional 'Z' member.
+ (See the precompiler directive use_xyz.)
+* Added: Users can now force Clipper to use 32bit integers
+ (via the precompiler directive use_int32) instead of using
+ 64bit integers.
+* Modified: To accommodate open paths, the Polygon and Polygons
+ structures have been renamed Path and Paths respectively. The
+ AddPolygon and AddPolygons methods of the ClipperBase class
+ have been renamed AddPath and AddPaths respectively. Several
+ other functions have been similarly renamed.
+* Modified: The PolyNode Class has a new IsOpen property.
+* Modified: The Clipper class has a new ZFillFunction property.
+* Added: MinkowskiSum and MinkowskiDiff functions added.
+* Added: Several other new functions have been added including
+ PolyTreeToPaths, OpenPathsFromPolyTree and ClosedPathsFromPolyTree.
+* Added: The Clipper constructor now accepts an optional InitOptions
+ parameter to simplify setting properties.
+* Bugfixes: Numerous minor bugs have been fixed.
+* Deprecated: Version 6 is a major upgrade from previous versions
+ and quite a number of changes have been made to exposed structures
+ and functions. To minimize inconvenience to existing library users,
+ some code has been retained and some added to maintain backward
+ compatibility. However, because this code will be removed in a
+ future update, it has been marked as deprecated and a precompiler
+ directive use_deprecated has been defined.
+
+v5.1.6 (23 May 2013)
+* BugFix: CleanPolygon function was buggy.
+* Changed: The behaviour of the 'miter' JoinType has been
+ changed so that when squaring occurs, it's no longer
+ extended up to the miter limit but is squared off at
+ exactly 'delta' units. (This improves the look of mitering
+ with larger limits at acute angles.)
+* Added: New OffsetPolyLines function
+* Update: Minor code refactoring and optimisations
+
+v5.1.5 (5 May 2013)
+* Added: ForceSimple property to Clipper class
+* Update: Improved documentation
+
+v5.1.4 (24 March 2013)
+* Update: CleanPolygon function enhanced.
+* Update: Documentation improved.
+
+v5.1.3 (14 March 2013)
+* Bugfix: Minor bugfixes.
+* Update: Documentation significantly improved.
+
+v5.1.2 (26 February 2013)
+* Bugfix: PolyNode class was missing a constructor.
+* Update: The MiterLimit parameter in the OffsetPolygons
+ function has been renamed Limit and can now also be used to
+ limit the number of vertices used to construct arcs when
+ JoinType is set to jtRound.
+
+v5.1.0 (17 February 2013)
+* Update: ExPolygons has been replaced with the PolyTree &
+ PolyNode classes to more fully represent the parent-child
+ relationships of the polygons returned by Clipper.
+* Added: New CleanPolygon and CleanPolygons functions.
+* Bugfix: Another orientation bug fixed.
+
+v5.0.2 - 30 December 2012
+* Bugfix: Significant fixes in and tidy of the internal
+ Int128 class (which is used only when polygon coordinate
+ values are greater than ±0x3FFFFFFF (~1.07e9)).
+* Update: The Area algorithm has been updated and is faster.
+* Update: Documentation updates. The newish but undocumented
+ 'CheckInputs' parameter of the OffsetPolygons function has been
+ renamed 'AutoFix' and documented too. The comments on rounding
+ have also been improved (ie clearer and expanded).
+
+v4.10.0 - 25 December 2012
+* Bugfix: Orientation bugs should now be resolved (finally!).
+* Bugfix: Bug in Int128 class
+
+v4.9.8 - 2 December 2012
+* Bugfix: Further fixes to rare Orientation bug.
+
+v4.9.7 - 29 November 2012
+* Bugfix: Bug that very rarely returned the wrong polygon
+ orientation.
+* Bugfix: Obscure bug affecting OffsetPolygons when using
+ jtRound for the JoinType parameter and when polygons also
+ contain very large coordinate values (> +/-100000000000).
+
+v4.9.6 - 9 November 2012
+* Bugfix: Another obscure bug related to joining polygons.
+
+v4.9.4 - 2 November 2012
+* Bugfix: Bugs in Int128 class occasionally causing
+ wrong orientations.
+* Bugfix: Further fixes related to joining polygons.
+
+v4.9.0 - 9 October 2012
+* Bugfix: Obscure bug related to joining polygons.
+
+v4.8.9 - 25 September 2012
+* Bugfix: Obscure bug related to precision of intersections.
+
+v4.8.8 - 30 August 2012
+* Bugfix: Fixed bug in OffsetPolygons function introduced in
+ version 4.8.5.
+
+v4.8.7 - 24 August 2012
+* Bugfix: ReversePolygon function in C++ translation was broken.
+* Bugfix: Two obscure bugs affecting orientation fixed too.
+
+v4.8.6 - 11 August 2012
+* Bugfix: Potential for memory overflow errors when using
+ ExPolygons structure.
+* Bugfix: The polygon coordinate range has been reduced to
+ +/- 0x3FFFFFFFFFFFFFFF (4.6e18).
+* Update: ReversePolygons function was misnamed ReversePoints in C++.
+* Update: SimplifyPolygon function now takes a PolyFillType parameter.
+
+v4.8.5 - 15 July 2012
+* Bugfix: Potential for memory overflow errors in OffsetPolygons().
+
+v4.8.4 - 1 June 2012
+* Bugfix: Another obscure bug affecting ExPolygons structure.
+
+v4.8.3 - 27 May 2012
+* Bugfix: Obscure bug causing incorrect removal of a vertex.
+
+v4.8.2 - 21 May 2012
+* Bugfix: Obscure bug could cause an exception when using
+ ExPolygon structure.
+
+v4.8.1 - 12 May 2012
+* Update: Cody tidy and minor bug fixes.
+
+v4.8.0 - 30 April 2012
+* Bugfix: Occasional errors in orientation fixed.
+* Update: Added notes on rounding to the documentation.
+
+v4.7.6 - 11 April 2012
+* Fixed a bug in Orientation function (affecting C# translations only).
+* Minor documentation update.
+
+v4.7.5 - 28 March 2012
+* Bugfix: Fixed a recently introduced bug that occasionally caused an
+ unhandled exception in C++ and C# translations.
+
+v4.7.4 - 15 March 2012
+* Bugfix: Another minor bugfix.
+
+v4.7.2 - 4 March 2012
+* Bugfix: Fixed bug introduced in ver 4.7 which sometimes caused
+ an exception if ExPolygon structure was passed to Clipper's
+ Execute method.
+
+v4.7.1 - 3 March 2012
+* Bugfix: Rare crash when JoinCommonEdges joined polygons that
+ 'cancelled' each other.
+* Bugfix: Clipper's internal Orientation method occasionally
+ returned wrong result.
+* Update: Improved C# code (thanks to numerous excellent suggestions
+ from David Piepgrass)
+
+v4.7 - 10 February 2012
+* Improved the joining of output polygons sharing a common edge.
+
+v4.6.6 - 3 February 2012
+* Bugfix: Another obscure bug occasionally causing incorrect
+ polygon orientation.
+
+v4.6.5 - 17 January 2012
+* Bugfix: Obscure bug occasionally causing incorrect hole
+ assignment in ExPolygon structure.
+
+v4.6.4 - 8 November 2011
+* Added: SimplifyPolygon and SimplifyPolygons functions.
+
+v4.6.3 - 11 November 2011
+* Bugfix: Fixed another minor mitering bug in OffsetPolygons.
+
+v4.6.2 - 10 November 2011
+* Bugfix: Fixed a rare bug in the orientation of polygons
+ returned by Clipper's Execute() method.
+* Bugfix: Previous update introduced a mitering bug in the
+ OffsetPolygons function.
+
+v4.6 - 29 October 2011
+* Added: Support for Positive and Negative polygon fill
+ types (in addition to the EvenOdd and NonZero fill types).
+* Bugfix: The OffsetPolygons function was generating the
+ occasional artefact when 'shrinking' polygons.
+
+v4.5.5 - 8 October 2011
+* Bugfix: Fixed an obscure bug in Clipper's JoinCommonEdges
+ method.
+* Update: Replaced IsClockwise function with Orientation
+ function. The orientation issues affecting OffsetPolygons
+ should now be finally resolved.
+* Change: The Area function once again returns a signed value.
+
+v4.5.1 - 28 September 2011
+* Deleted: The UseFullCoordinateRange property has been
+ deleted since integer range is now managed implicitly.
+* BugFix: Minor bug in OffsetPolygon mitering.
+* Change: C# JoinType enum moved from Clipper class to
+ ClipperLib namespace.
+* Change: The Area function now returns the absolute area
+ (irrespective of orientation).
+* Change: The IsClockwise function now requires a second
+ parameter - YAxisPositiveUpward - to accommodate displays
+ with Y-axis oriented in either direction
+
+v4.4.4 - 10 September 2011
+* Change: Deleted jtButt from JoinType (used by the
+ OffsetPolygons function).
+* BugFix: Fixed another minor bug in OffsetPolygons function.
+* Update: Further improvements to the help file
+
+v4.4.3 - 29 August 2011
+* BugFix: fixed a minor rounding issue in OffsetPolygons
+ function (affected C++ & C# translations).
+* BugFix: fixed a minor bug in OffsetPolygons' function
+ declaration (affected C++ translation only).
+* Change: 'clipper' namespace changed to 'ClipperLib'
+ namespace in both C++ and C# code to remove the ambiguity
+ between the Clipper class and the namespace. (This also
+ required numerous updates to the accompanying demos.)
+
+v4.4.2 - 26 August 2011
+* BugFix: minor bugfixes in Clipper.
+* Update: the OffsetPolygons function has been significantly
+ improved by offering 4 different join styles.
+
+v4.4.0 - 6 August 2011
+* BugFix: A number of minor bugs have been fixed that mostly
+ affected the new ExPolygons structure.
+
+v4.3.0 - 17 June 2011
+* New: ExPolygons structure that explicitly associates 'hole'
+ polygons with their 'outer' container polygons.
+* New: Execute method overloaded so the solution parameter
+ can now be either Polygons or ExPolygons.
+* BugFix: Fixed a rare bug in solution polygons orientation.
+
+v4.2.8 - 21 May 2011
+* Update: JoinCommonEdges() improved once more.
+* BugFix: Several minor bugs fixed.
+
+v4.2.6 - 1 May 2011
+* Bugfix: minor bug in SlopesEqual function.
+* Update: Merging of output polygons sharing common edges
+ has been significantly inproved
+
+v4.2.4 - 26 April 2011
+ Input polygon coordinates can now contain the full range of
+ signed 64bit integers (ie +/-9,223,372,036,854,775,807). This
+ means that floating point values can be converted to and from
+ Clipper's 64bit integer coordinates structure (IntPoint) and
+ still retain a precision of up to 18 decimal places. However,
+ since the large-integer math that supports this expanded range
+ imposes a small cost on performance (~15%), a new property
+ UseFullCoordinateRange has been added to the Clipper class to
+ allow users the choice of whether or not to use this expanded
+ coordinate range. If this property is disabled, coordinate values
+ are restricted to +/-1,500,000,000.
+
+v4.2 - 12 April 2011
+ JoinCommonEdges() code significantly improved plus other minor
+ improvements.
+
+v4.1.2 - 9 April 2011
+* Update: Minor code tidy.
+* Bugfix: Possible endless loop in JoinCommonEdges() in clipper.pas.
+
+v4.1.1 - 8 April 2011
+* Update: All polygon coordinates are now stored as 64bit integers
+ (though they're still restricted to range -1.5e9 to +1.5e9 pending
+ the inclusion of code supporting 64bit math).
+* Change: AddPolygon and AddPolygons methods now return boolean
+ values.
+* Bugfix: Bug in JoinCommonEdges() caused potential endless loop.
+* Bugfix: Bug in IsClockwise(). (C++ code only)
+
+v4.0 - 5 April 2011
+* Clipper 4 is a major rewrite of earlier versions. The biggest
+ change is that floating point values are no longer used,
+ except for the storing of edge slope values. The main benefit
+ of this is the issue of numerical robustness has been
+ addressed. Due to other major code improvements Clipper v4
+ is approximately 40% faster than Clipper v3.
+* The AddPolyPolygon method has been renamed to AddPolygons.
+* The IgnoreOrientation property has been removed.
+* The clipper_misc library has been merged back into the
+ main clipper library.
+
+v3.1.0 - 17 February 2011
+* Bugfix: Obscure bug in TClipperBase.SetDx method that caused
+ problems with very small edges ( edges <1/1000th pixel in size).
+
+v3.0.3 - 9 February 2011
+* Bugfix: Significant bug, but only in C# code.
+* Update: Minor refactoring.
+
+v3.0 - 31 January 2011
+* Update: Major rewrite of the portion of code that calculates
+ the output polygons' orientation.
+* Update: Help file significantly improved.
+* Change: Renamed ForceOrientation property to IgnoreOrientation.
+ If the orientation of output polygons is not important, or can
+ be managed separately, clipping routines can be sped up by about
+ 60% by setting IgnoreOrientation to true. Defaults to false.
+* Change: The OffsetPolygon and Area functions have been moved to
+ the new unit - clipper_misc.
+
+2.99 - 15 January 2011
+* Bugfix: Obscure bug in AddPolygon method could cause an endless loop.
+
+2.8 - 20 November 2010
+* Updated: Output polygons which previously shared a common
+ edge are now merged.
+* Changed: The orientation of outer polygons is now clockwise
+ when the display's Y axis is positive downwards (as is
+ typical for most Windows applications). Inner polygons
+ (holes) have the opposite orientation.
+* Added: Support module for Cairo Graphics Library (with demo).
+* Updated: C# and C++ demos.
+
+2.522 - 15 October 2010
+* Added C# translation (thanks to Olivier Lejeune) and
+ a link to Ruby bindings (thanks to Mike Owens).
+
+2.0 - 30 July 2010
+* Clipper now clips using both the Even-Odd (alternate) and
+ Non-Zero (winding) polygon filling rules. (Previously Clipper
+ assumed the Even-Odd rule for polygon filling.)
+
+1.4c - 16 June 2010
+* Added C++ support for AGG graphics library
+
+1.2s - 2 June 2010
+* Added C++ translation of clipper.pas
+
+1.0 - 9 May 2010
\ No newline at end of file
diff --git a/upstream/clipper-6.4.2/cpp/CMakeLists.txt b/upstream/clipper-6.4.2/cpp/CMakeLists.txt
new file mode 100644
index 0000000..32293cb
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/CMakeLists.txt
@@ -0,0 +1,21 @@
+CMAKE_MINIMUM_REQUIRED(VERSION 2.6.0)
+PROJECT(polyclipping)
+
+SET(CMAKE_BUILD_TYPE "Release" CACHE STRING "Release type")
+# The header name clipper.hpp is too generic, so install in a subdirectory
+SET(CMAKE_INSTALL_INCDIR "${CMAKE_INSTALL_PREFIX}/include/polyclipping")
+SET(CMAKE_INSTALL_LIBDIR "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}")
+SET(CMAKE_INSTALL_PKGCONFIGDIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig")
+SET(PCFILE "${CMAKE_CURRENT_BINARY_DIR}/polyclipping.pc")
+
+SET(BUILD_SHARED_LIBS ON CACHE BOOL
+ "Build shared libraries (.dll/.so) instead of static ones (.lib/.a)")
+ADD_LIBRARY(polyclipping clipper.cpp)
+
+CONFIGURE_FILE (polyclipping.pc.cmakein "${PCFILE}" @ONLY)
+
+INSTALL (FILES clipper.hpp DESTINATION "${CMAKE_INSTALL_INCDIR}")
+INSTALL (TARGETS polyclipping LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
+INSTALL (FILES "${PCFILE}" DESTINATION "${CMAKE_INSTALL_PKGCONFIGDIR}")
+
+SET_TARGET_PROPERTIES(polyclipping PROPERTIES VERSION 22.0.0 SOVERSION 22 )
diff --git a/upstream/clipper-6.4.2/cpp/clipper.cpp b/upstream/clipper-6.4.2/cpp/clipper.cpp
new file mode 100644
index 0000000..d0e5ba2
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/clipper.cpp
@@ -0,0 +1,4629 @@
+/*******************************************************************************
+* *
+* Author : Angus Johnson *
+* Version : 6.4.2 *
+* Date : 27 February 2017 *
+* Website : http://www.angusj.com *
+* Copyright : Angus Johnson 2010-2017 *
+* *
+* License: *
+* Use, modification & distribution is subject to Boost Software License Ver 1. *
+* http://www.boost.org/LICENSE_1_0.txt *
+* *
+* Attributions: *
+* The code in this library is an extension of Bala Vatti's clipping algorithm: *
+* "A generic solution to polygon clipping" *
+* Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63. *
+* http://portal.acm.org/citation.cfm?id=129906 *
+* *
+* Computer graphics and geometric modeling: implementation and algorithms *
+* By Max K. Agoston *
+* Springer; 1 edition (January 4, 2005) *
+* http://books.google.com/books?q=vatti+clipping+agoston *
+* *
+* See also: *
+* "Polygon Offsetting by Computing Winding Numbers" *
+* Paper no. DETC2005-85513 pp. 565-575 *
+* ASME 2005 International Design Engineering Technical Conferences *
+* and Computers and Information in Engineering Conference (IDETC/CIE2005) *
+* September 24-28, 2005 , Long Beach, California, USA *
+* http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf *
+* *
+*******************************************************************************/
+
+/*******************************************************************************
+* *
+* This is a translation of the Delphi Clipper library and the naming style *
+* used has retained a Delphi flavour. *
+* *
+*******************************************************************************/
+
+#include "clipper.hpp"
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+namespace ClipperLib {
+
+static double const pi = 3.141592653589793238;
+static double const two_pi = pi *2;
+static double const def_arc_tolerance = 0.25;
+
+enum Direction { dRightToLeft, dLeftToRight };
+
+static int const Unassigned = -1; //edge not currently 'owning' a solution
+static int const Skip = -2; //edge that would otherwise close a path
+
+#define HORIZONTAL (-1.0E+40)
+#define TOLERANCE (1.0e-20)
+#define NEAR_ZERO(val) (((val) > -TOLERANCE) && ((val) < TOLERANCE))
+
+struct TEdge {
+ IntPoint Bot;
+ IntPoint Curr; //current (updated for every new scanbeam)
+ IntPoint Top;
+ double Dx;
+ PolyType PolyTyp;
+ EdgeSide Side; //side only refers to current side of solution poly
+ int WindDelta; //1 or -1 depending on winding direction
+ int WindCnt;
+ int WindCnt2; //winding count of the opposite polytype
+ int OutIdx;
+ TEdge *Next;
+ TEdge *Prev;
+ TEdge *NextInLML;
+ TEdge *NextInAEL;
+ TEdge *PrevInAEL;
+ TEdge *NextInSEL;
+ TEdge *PrevInSEL;
+};
+
+struct IntersectNode {
+ TEdge *Edge1;
+ TEdge *Edge2;
+ IntPoint Pt;
+};
+
+struct LocalMinimum {
+ cInt Y;
+ TEdge *LeftBound;
+ TEdge *RightBound;
+};
+
+struct OutPt;
+
+//OutRec: contains a path in the clipping solution. Edges in the AEL will
+//carry a pointer to an OutRec when they are part of the clipping solution.
+struct OutRec {
+ int Idx;
+ bool IsHole;
+ bool IsOpen;
+ OutRec *FirstLeft; //see comments in clipper.pas
+ PolyNode *PolyNd;
+ OutPt *Pts;
+ OutPt *BottomPt;
+};
+
+struct OutPt {
+ int Idx;
+ IntPoint Pt;
+ OutPt *Next;
+ OutPt *Prev;
+};
+
+struct Join {
+ OutPt *OutPt1;
+ OutPt *OutPt2;
+ IntPoint OffPt;
+};
+
+struct LocMinSorter
+{
+ inline bool operator()(const LocalMinimum& locMin1, const LocalMinimum& locMin2)
+ {
+ return locMin2.Y < locMin1.Y;
+ }
+};
+
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+
+inline cInt Round(double val)
+{
+ if ((val < 0)) return static_cast(val - 0.5);
+ else return static_cast(val + 0.5);
+}
+//------------------------------------------------------------------------------
+
+inline cInt Abs(cInt val)
+{
+ return val < 0 ? -val : val;
+}
+
+//------------------------------------------------------------------------------
+// PolyTree methods ...
+//------------------------------------------------------------------------------
+
+void PolyTree::Clear()
+{
+ for (PolyNodes::size_type i = 0; i < AllNodes.size(); ++i)
+ delete AllNodes[i];
+ AllNodes.resize(0);
+ Childs.resize(0);
+}
+//------------------------------------------------------------------------------
+
+PolyNode* PolyTree::GetFirst() const
+{
+ if (!Childs.empty())
+ return Childs[0];
+ else
+ return 0;
+}
+//------------------------------------------------------------------------------
+
+int PolyTree::Total() const
+{
+ int result = (int)AllNodes.size();
+ //with negative offsets, ignore the hidden outer polygon ...
+ if (result > 0 && Childs[0] != AllNodes[0]) result--;
+ return result;
+}
+
+//------------------------------------------------------------------------------
+// PolyNode methods ...
+//------------------------------------------------------------------------------
+
+PolyNode::PolyNode(): Parent(0), Index(0), m_IsOpen(false)
+{
+}
+//------------------------------------------------------------------------------
+
+int PolyNode::ChildCount() const
+{
+ return (int)Childs.size();
+}
+//------------------------------------------------------------------------------
+
+void PolyNode::AddChild(PolyNode& child)
+{
+ unsigned cnt = (unsigned)Childs.size();
+ Childs.push_back(&child);
+ child.Parent = this;
+ child.Index = cnt;
+}
+//------------------------------------------------------------------------------
+
+PolyNode* PolyNode::GetNext() const
+{
+ if (!Childs.empty())
+ return Childs[0];
+ else
+ return GetNextSiblingUp();
+}
+//------------------------------------------------------------------------------
+
+PolyNode* PolyNode::GetNextSiblingUp() const
+{
+ if (!Parent) //protects against PolyTree.GetNextSiblingUp()
+ return 0;
+ else if (Index == Parent->Childs.size() - 1)
+ return Parent->GetNextSiblingUp();
+ else
+ return Parent->Childs[Index + 1];
+}
+//------------------------------------------------------------------------------
+
+bool PolyNode::IsHole() const
+{
+ bool result = true;
+ PolyNode* node = Parent;
+ while (node)
+ {
+ result = !result;
+ node = node->Parent;
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+bool PolyNode::IsOpen() const
+{
+ return m_IsOpen;
+}
+//------------------------------------------------------------------------------
+
+#ifndef use_int32
+
+//------------------------------------------------------------------------------
+// Int128 class (enables safe math on signed 64bit integers)
+// eg Int128 val1((long64)9223372036854775807); //ie 2^63 -1
+// Int128 val2((long64)9223372036854775807);
+// Int128 val3 = val1 * val2;
+// val3.AsString => "85070591730234615847396907784232501249" (8.5e+37)
+//------------------------------------------------------------------------------
+
+class Int128
+{
+ public:
+ ulong64 lo;
+ long64 hi;
+
+ Int128(long64 _lo = 0)
+ {
+ lo = (ulong64)_lo;
+ if (_lo < 0) hi = -1; else hi = 0;
+ }
+
+
+ Int128(const Int128 &val): lo(val.lo), hi(val.hi){}
+
+ Int128(const long64& _hi, const ulong64& _lo): lo(_lo), hi(_hi){}
+
+ Int128& operator = (const long64 &val)
+ {
+ lo = (ulong64)val;
+ if (val < 0) hi = -1; else hi = 0;
+ return *this;
+ }
+
+ bool operator == (const Int128 &val) const
+ {return (hi == val.hi && lo == val.lo);}
+
+ bool operator != (const Int128 &val) const
+ { return !(*this == val);}
+
+ bool operator > (const Int128 &val) const
+ {
+ if (hi != val.hi)
+ return hi > val.hi;
+ else
+ return lo > val.lo;
+ }
+
+ bool operator < (const Int128 &val) const
+ {
+ if (hi != val.hi)
+ return hi < val.hi;
+ else
+ return lo < val.lo;
+ }
+
+ bool operator >= (const Int128 &val) const
+ { return !(*this < val);}
+
+ bool operator <= (const Int128 &val) const
+ { return !(*this > val);}
+
+ Int128& operator += (const Int128 &rhs)
+ {
+ hi += rhs.hi;
+ lo += rhs.lo;
+ if (lo < rhs.lo) hi++;
+ return *this;
+ }
+
+ Int128 operator + (const Int128 &rhs) const
+ {
+ Int128 result(*this);
+ result+= rhs;
+ return result;
+ }
+
+ Int128& operator -= (const Int128 &rhs)
+ {
+ *this += -rhs;
+ return *this;
+ }
+
+ Int128 operator - (const Int128 &rhs) const
+ {
+ Int128 result(*this);
+ result -= rhs;
+ return result;
+ }
+
+ Int128 operator-() const //unary negation
+ {
+ if (lo == 0)
+ return Int128(-hi, 0);
+ else
+ return Int128(~hi, ~lo + 1);
+ }
+
+ operator double() const
+ {
+ const double shift64 = 18446744073709551616.0; //2^64
+ if (hi < 0)
+ {
+ if (lo == 0) return (double)hi * shift64;
+ else return -(double)(~lo + ~hi * shift64);
+ }
+ else
+ return (double)(lo + hi * shift64);
+ }
+
+};
+//------------------------------------------------------------------------------
+
+Int128 Int128Mul (long64 lhs, long64 rhs)
+{
+ bool negate = (lhs < 0) != (rhs < 0);
+
+ if (lhs < 0) lhs = -lhs;
+ ulong64 int1Hi = ulong64(lhs) >> 32;
+ ulong64 int1Lo = ulong64(lhs & 0xFFFFFFFF);
+
+ if (rhs < 0) rhs = -rhs;
+ ulong64 int2Hi = ulong64(rhs) >> 32;
+ ulong64 int2Lo = ulong64(rhs & 0xFFFFFFFF);
+
+ //nb: see comments in clipper.pas
+ ulong64 a = int1Hi * int2Hi;
+ ulong64 b = int1Lo * int2Lo;
+ ulong64 c = int1Hi * int2Lo + int1Lo * int2Hi;
+
+ Int128 tmp;
+ tmp.hi = long64(a + (c >> 32));
+ tmp.lo = long64(c << 32);
+ tmp.lo += long64(b);
+ if (tmp.lo < b) tmp.hi++;
+ if (negate) tmp = -tmp;
+ return tmp;
+};
+#endif
+
+//------------------------------------------------------------------------------
+// Miscellaneous global functions
+//------------------------------------------------------------------------------
+
+bool Orientation(const Path &poly)
+{
+ return Area(poly) >= 0;
+}
+//------------------------------------------------------------------------------
+
+double Area(const Path &poly)
+{
+ int size = (int)poly.size();
+ if (size < 3) return 0;
+
+ double a = 0;
+ for (int i = 0, j = size -1; i < size; ++i)
+ {
+ a += ((double)poly[j].X + poly[i].X) * ((double)poly[j].Y - poly[i].Y);
+ j = i;
+ }
+ return -a * 0.5;
+}
+//------------------------------------------------------------------------------
+
+double Area(const OutPt *op)
+{
+ const OutPt *startOp = op;
+ if (!op) return 0;
+ double a = 0;
+ do {
+ a += (double)(op->Prev->Pt.X + op->Pt.X) * (double)(op->Prev->Pt.Y - op->Pt.Y);
+ op = op->Next;
+ } while (op != startOp);
+ return a * 0.5;
+}
+//------------------------------------------------------------------------------
+
+double Area(const OutRec &outRec)
+{
+ return Area(outRec.Pts);
+}
+//------------------------------------------------------------------------------
+
+bool PointIsVertex(const IntPoint &Pt, OutPt *pp)
+{
+ OutPt *pp2 = pp;
+ do
+ {
+ if (pp2->Pt == Pt) return true;
+ pp2 = pp2->Next;
+ }
+ while (pp2 != pp);
+ return false;
+}
+//------------------------------------------------------------------------------
+
+//See "The Point in Polygon Problem for Arbitrary Polygons" by Hormann & Agathos
+//http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.88.5498&rep=rep1&type=pdf
+int PointInPolygon(const IntPoint &pt, const Path &path)
+{
+ //returns 0 if false, +1 if true, -1 if pt ON polygon boundary
+ int result = 0;
+ size_t cnt = path.size();
+ if (cnt < 3) return 0;
+ IntPoint ip = path[0];
+ for(size_t i = 1; i <= cnt; ++i)
+ {
+ IntPoint ipNext = (i == cnt ? path[0] : path[i]);
+ if (ipNext.Y == pt.Y)
+ {
+ if ((ipNext.X == pt.X) || (ip.Y == pt.Y &&
+ ((ipNext.X > pt.X) == (ip.X < pt.X)))) return -1;
+ }
+ if ((ip.Y < pt.Y) != (ipNext.Y < pt.Y))
+ {
+ if (ip.X >= pt.X)
+ {
+ if (ipNext.X > pt.X) result = 1 - result;
+ else
+ {
+ double d = (double)(ip.X - pt.X) * (ipNext.Y - pt.Y) -
+ (double)(ipNext.X - pt.X) * (ip.Y - pt.Y);
+ if (!d) return -1;
+ if ((d > 0) == (ipNext.Y > ip.Y)) result = 1 - result;
+ }
+ } else
+ {
+ if (ipNext.X > pt.X)
+ {
+ double d = (double)(ip.X - pt.X) * (ipNext.Y - pt.Y) -
+ (double)(ipNext.X - pt.X) * (ip.Y - pt.Y);
+ if (!d) return -1;
+ if ((d > 0) == (ipNext.Y > ip.Y)) result = 1 - result;
+ }
+ }
+ }
+ ip = ipNext;
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+int PointInPolygon (const IntPoint &pt, OutPt *op)
+{
+ //returns 0 if false, +1 if true, -1 if pt ON polygon boundary
+ int result = 0;
+ OutPt* startOp = op;
+ for(;;)
+ {
+ if (op->Next->Pt.Y == pt.Y)
+ {
+ if ((op->Next->Pt.X == pt.X) || (op->Pt.Y == pt.Y &&
+ ((op->Next->Pt.X > pt.X) == (op->Pt.X < pt.X)))) return -1;
+ }
+ if ((op->Pt.Y < pt.Y) != (op->Next->Pt.Y < pt.Y))
+ {
+ if (op->Pt.X >= pt.X)
+ {
+ if (op->Next->Pt.X > pt.X) result = 1 - result;
+ else
+ {
+ double d = (double)(op->Pt.X - pt.X) * (op->Next->Pt.Y - pt.Y) -
+ (double)(op->Next->Pt.X - pt.X) * (op->Pt.Y - pt.Y);
+ if (!d) return -1;
+ if ((d > 0) == (op->Next->Pt.Y > op->Pt.Y)) result = 1 - result;
+ }
+ } else
+ {
+ if (op->Next->Pt.X > pt.X)
+ {
+ double d = (double)(op->Pt.X - pt.X) * (op->Next->Pt.Y - pt.Y) -
+ (double)(op->Next->Pt.X - pt.X) * (op->Pt.Y - pt.Y);
+ if (!d) return -1;
+ if ((d > 0) == (op->Next->Pt.Y > op->Pt.Y)) result = 1 - result;
+ }
+ }
+ }
+ op = op->Next;
+ if (startOp == op) break;
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+bool Poly2ContainsPoly1(OutPt *OutPt1, OutPt *OutPt2)
+{
+ OutPt* op = OutPt1;
+ do
+ {
+ //nb: PointInPolygon returns 0 if false, +1 if true, -1 if pt on polygon
+ int res = PointInPolygon(op->Pt, OutPt2);
+ if (res >= 0) return res > 0;
+ op = op->Next;
+ }
+ while (op != OutPt1);
+ return true;
+}
+//----------------------------------------------------------------------
+
+bool SlopesEqual(const TEdge &e1, const TEdge &e2, bool UseFullInt64Range)
+{
+#ifndef use_int32
+ if (UseFullInt64Range)
+ return Int128Mul(e1.Top.Y - e1.Bot.Y, e2.Top.X - e2.Bot.X) ==
+ Int128Mul(e1.Top.X - e1.Bot.X, e2.Top.Y - e2.Bot.Y);
+ else
+#endif
+ return (e1.Top.Y - e1.Bot.Y) * (e2.Top.X - e2.Bot.X) ==
+ (e1.Top.X - e1.Bot.X) * (e2.Top.Y - e2.Bot.Y);
+}
+//------------------------------------------------------------------------------
+
+bool SlopesEqual(const IntPoint pt1, const IntPoint pt2,
+ const IntPoint pt3, bool UseFullInt64Range)
+{
+#ifndef use_int32
+ if (UseFullInt64Range)
+ return Int128Mul(pt1.Y-pt2.Y, pt2.X-pt3.X) == Int128Mul(pt1.X-pt2.X, pt2.Y-pt3.Y);
+ else
+#endif
+ return (pt1.Y-pt2.Y)*(pt2.X-pt3.X) == (pt1.X-pt2.X)*(pt2.Y-pt3.Y);
+}
+//------------------------------------------------------------------------------
+
+bool SlopesEqual(const IntPoint pt1, const IntPoint pt2,
+ const IntPoint pt3, const IntPoint pt4, bool UseFullInt64Range)
+{
+#ifndef use_int32
+ if (UseFullInt64Range)
+ return Int128Mul(pt1.Y-pt2.Y, pt3.X-pt4.X) == Int128Mul(pt1.X-pt2.X, pt3.Y-pt4.Y);
+ else
+#endif
+ return (pt1.Y-pt2.Y)*(pt3.X-pt4.X) == (pt1.X-pt2.X)*(pt3.Y-pt4.Y);
+}
+//------------------------------------------------------------------------------
+
+inline bool IsHorizontal(TEdge &e)
+{
+ return e.Dx == HORIZONTAL;
+}
+//------------------------------------------------------------------------------
+
+inline double GetDx(const IntPoint pt1, const IntPoint pt2)
+{
+ return (pt1.Y == pt2.Y) ?
+ HORIZONTAL : (double)(pt2.X - pt1.X) / (pt2.Y - pt1.Y);
+}
+//---------------------------------------------------------------------------
+
+inline void SetDx(TEdge &e)
+{
+ cInt dy = (e.Top.Y - e.Bot.Y);
+ if (dy == 0) e.Dx = HORIZONTAL;
+ else e.Dx = (double)(e.Top.X - e.Bot.X) / dy;
+}
+//---------------------------------------------------------------------------
+
+inline void SwapSides(TEdge &Edge1, TEdge &Edge2)
+{
+ EdgeSide Side = Edge1.Side;
+ Edge1.Side = Edge2.Side;
+ Edge2.Side = Side;
+}
+//------------------------------------------------------------------------------
+
+inline void SwapPolyIndexes(TEdge &Edge1, TEdge &Edge2)
+{
+ int OutIdx = Edge1.OutIdx;
+ Edge1.OutIdx = Edge2.OutIdx;
+ Edge2.OutIdx = OutIdx;
+}
+//------------------------------------------------------------------------------
+
+inline cInt TopX(TEdge &edge, const cInt currentY)
+{
+ return ( currentY == edge.Top.Y ) ?
+ edge.Top.X : edge.Bot.X + Round(edge.Dx *(currentY - edge.Bot.Y));
+}
+//------------------------------------------------------------------------------
+
+void IntersectPoint(TEdge &Edge1, TEdge &Edge2, IntPoint &ip)
+{
+#ifdef use_xyz
+ ip.Z = 0;
+#endif
+
+ double b1, b2;
+ if (Edge1.Dx == Edge2.Dx)
+ {
+ ip.Y = Edge1.Curr.Y;
+ ip.X = TopX(Edge1, ip.Y);
+ return;
+ }
+ else if (Edge1.Dx == 0)
+ {
+ ip.X = Edge1.Bot.X;
+ if (IsHorizontal(Edge2))
+ ip.Y = Edge2.Bot.Y;
+ else
+ {
+ b2 = Edge2.Bot.Y - (Edge2.Bot.X / Edge2.Dx);
+ ip.Y = Round(ip.X / Edge2.Dx + b2);
+ }
+ }
+ else if (Edge2.Dx == 0)
+ {
+ ip.X = Edge2.Bot.X;
+ if (IsHorizontal(Edge1))
+ ip.Y = Edge1.Bot.Y;
+ else
+ {
+ b1 = Edge1.Bot.Y - (Edge1.Bot.X / Edge1.Dx);
+ ip.Y = Round(ip.X / Edge1.Dx + b1);
+ }
+ }
+ else
+ {
+ b1 = Edge1.Bot.X - Edge1.Bot.Y * Edge1.Dx;
+ b2 = Edge2.Bot.X - Edge2.Bot.Y * Edge2.Dx;
+ double q = (b2-b1) / (Edge1.Dx - Edge2.Dx);
+ ip.Y = Round(q);
+ if (std::fabs(Edge1.Dx) < std::fabs(Edge2.Dx))
+ ip.X = Round(Edge1.Dx * q + b1);
+ else
+ ip.X = Round(Edge2.Dx * q + b2);
+ }
+
+ if (ip.Y < Edge1.Top.Y || ip.Y < Edge2.Top.Y)
+ {
+ if (Edge1.Top.Y > Edge2.Top.Y)
+ ip.Y = Edge1.Top.Y;
+ else
+ ip.Y = Edge2.Top.Y;
+ if (std::fabs(Edge1.Dx) < std::fabs(Edge2.Dx))
+ ip.X = TopX(Edge1, ip.Y);
+ else
+ ip.X = TopX(Edge2, ip.Y);
+ }
+ //finally, don't allow 'ip' to be BELOW curr.Y (ie bottom of scanbeam) ...
+ if (ip.Y > Edge1.Curr.Y)
+ {
+ ip.Y = Edge1.Curr.Y;
+ //use the more vertical edge to derive X ...
+ if (std::fabs(Edge1.Dx) > std::fabs(Edge2.Dx))
+ ip.X = TopX(Edge2, ip.Y); else
+ ip.X = TopX(Edge1, ip.Y);
+ }
+}
+//------------------------------------------------------------------------------
+
+void ReversePolyPtLinks(OutPt *pp)
+{
+ if (!pp) return;
+ OutPt *pp1, *pp2;
+ pp1 = pp;
+ do {
+ pp2 = pp1->Next;
+ pp1->Next = pp1->Prev;
+ pp1->Prev = pp2;
+ pp1 = pp2;
+ } while( pp1 != pp );
+}
+//------------------------------------------------------------------------------
+
+void DisposeOutPts(OutPt*& pp)
+{
+ if (pp == 0) return;
+ pp->Prev->Next = 0;
+ while( pp )
+ {
+ OutPt *tmpPp = pp;
+ pp = pp->Next;
+ delete tmpPp;
+ }
+}
+//------------------------------------------------------------------------------
+
+inline void InitEdge(TEdge* e, TEdge* eNext, TEdge* ePrev, const IntPoint& Pt)
+{
+ std::memset(e, 0, sizeof(TEdge));
+ e->Next = eNext;
+ e->Prev = ePrev;
+ e->Curr = Pt;
+ e->OutIdx = Unassigned;
+}
+//------------------------------------------------------------------------------
+
+void InitEdge2(TEdge& e, PolyType Pt)
+{
+ if (e.Curr.Y >= e.Next->Curr.Y)
+ {
+ e.Bot = e.Curr;
+ e.Top = e.Next->Curr;
+ } else
+ {
+ e.Top = e.Curr;
+ e.Bot = e.Next->Curr;
+ }
+ SetDx(e);
+ e.PolyTyp = Pt;
+}
+//------------------------------------------------------------------------------
+
+TEdge* RemoveEdge(TEdge* e)
+{
+ //removes e from double_linked_list (but without removing from memory)
+ e->Prev->Next = e->Next;
+ e->Next->Prev = e->Prev;
+ TEdge* result = e->Next;
+ e->Prev = 0; //flag as removed (see ClipperBase.Clear)
+ return result;
+}
+//------------------------------------------------------------------------------
+
+inline void ReverseHorizontal(TEdge &e)
+{
+ //swap horizontal edges' Top and Bottom x's so they follow the natural
+ //progression of the bounds - ie so their xbots will align with the
+ //adjoining lower edge. [Helpful in the ProcessHorizontal() method.]
+ std::swap(e.Top.X, e.Bot.X);
+#ifdef use_xyz
+ std::swap(e.Top.Z, e.Bot.Z);
+#endif
+}
+//------------------------------------------------------------------------------
+
+void SwapPoints(IntPoint &pt1, IntPoint &pt2)
+{
+ IntPoint tmp = pt1;
+ pt1 = pt2;
+ pt2 = tmp;
+}
+//------------------------------------------------------------------------------
+
+bool GetOverlapSegment(IntPoint pt1a, IntPoint pt1b, IntPoint pt2a,
+ IntPoint pt2b, IntPoint &pt1, IntPoint &pt2)
+{
+ //precondition: segments are Collinear.
+ if (Abs(pt1a.X - pt1b.X) > Abs(pt1a.Y - pt1b.Y))
+ {
+ if (pt1a.X > pt1b.X) SwapPoints(pt1a, pt1b);
+ if (pt2a.X > pt2b.X) SwapPoints(pt2a, pt2b);
+ if (pt1a.X > pt2a.X) pt1 = pt1a; else pt1 = pt2a;
+ if (pt1b.X < pt2b.X) pt2 = pt1b; else pt2 = pt2b;
+ return pt1.X < pt2.X;
+ } else
+ {
+ if (pt1a.Y < pt1b.Y) SwapPoints(pt1a, pt1b);
+ if (pt2a.Y < pt2b.Y) SwapPoints(pt2a, pt2b);
+ if (pt1a.Y < pt2a.Y) pt1 = pt1a; else pt1 = pt2a;
+ if (pt1b.Y > pt2b.Y) pt2 = pt1b; else pt2 = pt2b;
+ return pt1.Y > pt2.Y;
+ }
+}
+//------------------------------------------------------------------------------
+
+bool FirstIsBottomPt(const OutPt* btmPt1, const OutPt* btmPt2)
+{
+ OutPt *p = btmPt1->Prev;
+ while ((p->Pt == btmPt1->Pt) && (p != btmPt1)) p = p->Prev;
+ double dx1p = std::fabs(GetDx(btmPt1->Pt, p->Pt));
+ p = btmPt1->Next;
+ while ((p->Pt == btmPt1->Pt) && (p != btmPt1)) p = p->Next;
+ double dx1n = std::fabs(GetDx(btmPt1->Pt, p->Pt));
+
+ p = btmPt2->Prev;
+ while ((p->Pt == btmPt2->Pt) && (p != btmPt2)) p = p->Prev;
+ double dx2p = std::fabs(GetDx(btmPt2->Pt, p->Pt));
+ p = btmPt2->Next;
+ while ((p->Pt == btmPt2->Pt) && (p != btmPt2)) p = p->Next;
+ double dx2n = std::fabs(GetDx(btmPt2->Pt, p->Pt));
+
+ if (std::max(dx1p, dx1n) == std::max(dx2p, dx2n) &&
+ std::min(dx1p, dx1n) == std::min(dx2p, dx2n))
+ return Area(btmPt1) > 0; //if otherwise identical use orientation
+ else
+ return (dx1p >= dx2p && dx1p >= dx2n) || (dx1n >= dx2p && dx1n >= dx2n);
+}
+//------------------------------------------------------------------------------
+
+OutPt* GetBottomPt(OutPt *pp)
+{
+ OutPt* dups = 0;
+ OutPt* p = pp->Next;
+ while (p != pp)
+ {
+ if (p->Pt.Y > pp->Pt.Y)
+ {
+ pp = p;
+ dups = 0;
+ }
+ else if (p->Pt.Y == pp->Pt.Y && p->Pt.X <= pp->Pt.X)
+ {
+ if (p->Pt.X < pp->Pt.X)
+ {
+ dups = 0;
+ pp = p;
+ } else
+ {
+ if (p->Next != pp && p->Prev != pp) dups = p;
+ }
+ }
+ p = p->Next;
+ }
+ if (dups)
+ {
+ //there appears to be at least 2 vertices at BottomPt so ...
+ while (dups != p)
+ {
+ if (!FirstIsBottomPt(p, dups)) pp = dups;
+ dups = dups->Next;
+ while (dups->Pt != pp->Pt) dups = dups->Next;
+ }
+ }
+ return pp;
+}
+//------------------------------------------------------------------------------
+
+bool Pt2IsBetweenPt1AndPt3(const IntPoint pt1,
+ const IntPoint pt2, const IntPoint pt3)
+{
+ if ((pt1 == pt3) || (pt1 == pt2) || (pt3 == pt2))
+ return false;
+ else if (pt1.X != pt3.X)
+ return (pt2.X > pt1.X) == (pt2.X < pt3.X);
+ else
+ return (pt2.Y > pt1.Y) == (pt2.Y < pt3.Y);
+}
+//------------------------------------------------------------------------------
+
+bool HorzSegmentsOverlap(cInt seg1a, cInt seg1b, cInt seg2a, cInt seg2b)
+{
+ if (seg1a > seg1b) std::swap(seg1a, seg1b);
+ if (seg2a > seg2b) std::swap(seg2a, seg2b);
+ return (seg1a < seg2b) && (seg2a < seg1b);
+}
+
+//------------------------------------------------------------------------------
+// ClipperBase class methods ...
+//------------------------------------------------------------------------------
+
+ClipperBase::ClipperBase() //constructor
+{
+ m_CurrentLM = m_MinimaList.begin(); //begin() == end() here
+ m_UseFullRange = false;
+}
+//------------------------------------------------------------------------------
+
+ClipperBase::~ClipperBase() //destructor
+{
+ Clear();
+}
+//------------------------------------------------------------------------------
+
+void RangeTest(const IntPoint& Pt, bool& useFullRange)
+{
+ if (useFullRange)
+ {
+ if (Pt.X > hiRange || Pt.Y > hiRange || -Pt.X > hiRange || -Pt.Y > hiRange)
+ throw clipperException("Coordinate outside allowed range");
+ }
+ else if (Pt.X > loRange|| Pt.Y > loRange || -Pt.X > loRange || -Pt.Y > loRange)
+ {
+ useFullRange = true;
+ RangeTest(Pt, useFullRange);
+ }
+}
+//------------------------------------------------------------------------------
+
+TEdge* FindNextLocMin(TEdge* E)
+{
+ for (;;)
+ {
+ while (E->Bot != E->Prev->Bot || E->Curr == E->Top) E = E->Next;
+ if (!IsHorizontal(*E) && !IsHorizontal(*E->Prev)) break;
+ while (IsHorizontal(*E->Prev)) E = E->Prev;
+ TEdge* E2 = E;
+ while (IsHorizontal(*E)) E = E->Next;
+ if (E->Top.Y == E->Prev->Bot.Y) continue; //ie just an intermediate horz.
+ if (E2->Prev->Bot.X < E->Bot.X) E = E2;
+ break;
+ }
+ return E;
+}
+//------------------------------------------------------------------------------
+
+TEdge* ClipperBase::ProcessBound(TEdge* E, bool NextIsForward)
+{
+ TEdge *Result = E;
+ TEdge *Horz = 0;
+
+ if (E->OutIdx == Skip)
+ {
+ //if edges still remain in the current bound beyond the skip edge then
+ //create another LocMin and call ProcessBound once more
+ if (NextIsForward)
+ {
+ while (E->Top.Y == E->Next->Bot.Y) E = E->Next;
+ //don't include top horizontals when parsing a bound a second time,
+ //they will be contained in the opposite bound ...
+ while (E != Result && IsHorizontal(*E)) E = E->Prev;
+ }
+ else
+ {
+ while (E->Top.Y == E->Prev->Bot.Y) E = E->Prev;
+ while (E != Result && IsHorizontal(*E)) E = E->Next;
+ }
+
+ if (E == Result)
+ {
+ if (NextIsForward) Result = E->Next;
+ else Result = E->Prev;
+ }
+ else
+ {
+ //there are more edges in the bound beyond result starting with E
+ if (NextIsForward)
+ E = Result->Next;
+ else
+ E = Result->Prev;
+ MinimaList::value_type locMin;
+ locMin.Y = E->Bot.Y;
+ locMin.LeftBound = 0;
+ locMin.RightBound = E;
+ E->WindDelta = 0;
+ Result = ProcessBound(E, NextIsForward);
+ m_MinimaList.push_back(locMin);
+ }
+ return Result;
+ }
+
+ TEdge *EStart;
+
+ if (IsHorizontal(*E))
+ {
+ //We need to be careful with open paths because this may not be a
+ //true local minima (ie E may be following a skip edge).
+ //Also, consecutive horz. edges may start heading left before going right.
+ if (NextIsForward)
+ EStart = E->Prev;
+ else
+ EStart = E->Next;
+ if (IsHorizontal(*EStart)) //ie an adjoining horizontal skip edge
+ {
+ if (EStart->Bot.X != E->Bot.X && EStart->Top.X != E->Bot.X)
+ ReverseHorizontal(*E);
+ }
+ else if (EStart->Bot.X != E->Bot.X)
+ ReverseHorizontal(*E);
+ }
+
+ EStart = E;
+ if (NextIsForward)
+ {
+ while (Result->Top.Y == Result->Next->Bot.Y && Result->Next->OutIdx != Skip)
+ Result = Result->Next;
+ if (IsHorizontal(*Result) && Result->Next->OutIdx != Skip)
+ {
+ //nb: at the top of a bound, horizontals are added to the bound
+ //only when the preceding edge attaches to the horizontal's left vertex
+ //unless a Skip edge is encountered when that becomes the top divide
+ Horz = Result;
+ while (IsHorizontal(*Horz->Prev)) Horz = Horz->Prev;
+ if (Horz->Prev->Top.X > Result->Next->Top.X) Result = Horz->Prev;
+ }
+ while (E != Result)
+ {
+ E->NextInLML = E->Next;
+ if (IsHorizontal(*E) && E != EStart &&
+ E->Bot.X != E->Prev->Top.X) ReverseHorizontal(*E);
+ E = E->Next;
+ }
+ if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Prev->Top.X)
+ ReverseHorizontal(*E);
+ Result = Result->Next; //move to the edge just beyond current bound
+ } else
+ {
+ while (Result->Top.Y == Result->Prev->Bot.Y && Result->Prev->OutIdx != Skip)
+ Result = Result->Prev;
+ if (IsHorizontal(*Result) && Result->Prev->OutIdx != Skip)
+ {
+ Horz = Result;
+ while (IsHorizontal(*Horz->Next)) Horz = Horz->Next;
+ if (Horz->Next->Top.X == Result->Prev->Top.X ||
+ Horz->Next->Top.X > Result->Prev->Top.X) Result = Horz->Next;
+ }
+
+ while (E != Result)
+ {
+ E->NextInLML = E->Prev;
+ if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Next->Top.X)
+ ReverseHorizontal(*E);
+ E = E->Prev;
+ }
+ if (IsHorizontal(*E) && E != EStart && E->Bot.X != E->Next->Top.X)
+ ReverseHorizontal(*E);
+ Result = Result->Prev; //move to the edge just beyond current bound
+ }
+
+ return Result;
+}
+//------------------------------------------------------------------------------
+
+bool ClipperBase::AddPath(const Path &pg, PolyType PolyTyp, bool Closed)
+{
+#ifdef use_lines
+ if (!Closed && PolyTyp == ptClip)
+ throw clipperException("AddPath: Open paths must be subject.");
+#else
+ if (!Closed)
+ throw clipperException("AddPath: Open paths have been disabled.");
+#endif
+
+ int highI = (int)pg.size() -1;
+ if (Closed) while (highI > 0 && (pg[highI] == pg[0])) --highI;
+ while (highI > 0 && (pg[highI] == pg[highI -1])) --highI;
+ if ((Closed && highI < 2) || (!Closed && highI < 1)) return false;
+
+ //create a new edge array ...
+ TEdge *edges = new TEdge [highI +1];
+
+ bool IsFlat = true;
+ //1. Basic (first) edge initialization ...
+ try
+ {
+ edges[1].Curr = pg[1];
+ RangeTest(pg[0], m_UseFullRange);
+ RangeTest(pg[highI], m_UseFullRange);
+ InitEdge(&edges[0], &edges[1], &edges[highI], pg[0]);
+ InitEdge(&edges[highI], &edges[0], &edges[highI-1], pg[highI]);
+ for (int i = highI - 1; i >= 1; --i)
+ {
+ RangeTest(pg[i], m_UseFullRange);
+ InitEdge(&edges[i], &edges[i+1], &edges[i-1], pg[i]);
+ }
+ }
+ catch(...)
+ {
+ delete [] edges;
+ throw; //range test fails
+ }
+ TEdge *eStart = &edges[0];
+
+ //2. Remove duplicate vertices, and (when closed) collinear edges ...
+ TEdge *E = eStart, *eLoopStop = eStart;
+ for (;;)
+ {
+ //nb: allows matching start and end points when not Closed ...
+ if (E->Curr == E->Next->Curr && (Closed || E->Next != eStart))
+ {
+ if (E == E->Next) break;
+ if (E == eStart) eStart = E->Next;
+ E = RemoveEdge(E);
+ eLoopStop = E;
+ continue;
+ }
+ if (E->Prev == E->Next)
+ break; //only two vertices
+ else if (Closed &&
+ SlopesEqual(E->Prev->Curr, E->Curr, E->Next->Curr, m_UseFullRange) &&
+ (!m_PreserveCollinear ||
+ !Pt2IsBetweenPt1AndPt3(E->Prev->Curr, E->Curr, E->Next->Curr)))
+ {
+ //Collinear edges are allowed for open paths but in closed paths
+ //the default is to merge adjacent collinear edges into a single edge.
+ //However, if the PreserveCollinear property is enabled, only overlapping
+ //collinear edges (ie spikes) will be removed from closed paths.
+ if (E == eStart) eStart = E->Next;
+ E = RemoveEdge(E);
+ E = E->Prev;
+ eLoopStop = E;
+ continue;
+ }
+ E = E->Next;
+ if ((E == eLoopStop) || (!Closed && E->Next == eStart)) break;
+ }
+
+ if ((!Closed && (E == E->Next)) || (Closed && (E->Prev == E->Next)))
+ {
+ delete [] edges;
+ return false;
+ }
+
+ if (!Closed)
+ {
+ m_HasOpenPaths = true;
+ eStart->Prev->OutIdx = Skip;
+ }
+
+ //3. Do second stage of edge initialization ...
+ E = eStart;
+ do
+ {
+ InitEdge2(*E, PolyTyp);
+ E = E->Next;
+ if (IsFlat && E->Curr.Y != eStart->Curr.Y) IsFlat = false;
+ }
+ while (E != eStart);
+
+ //4. Finally, add edge bounds to LocalMinima list ...
+
+ //Totally flat paths must be handled differently when adding them
+ //to LocalMinima list to avoid endless loops etc ...
+ if (IsFlat)
+ {
+ if (Closed)
+ {
+ delete [] edges;
+ return false;
+ }
+ E->Prev->OutIdx = Skip;
+ MinimaList::value_type locMin;
+ locMin.Y = E->Bot.Y;
+ locMin.LeftBound = 0;
+ locMin.RightBound = E;
+ locMin.RightBound->Side = esRight;
+ locMin.RightBound->WindDelta = 0;
+ for (;;)
+ {
+ if (E->Bot.X != E->Prev->Top.X) ReverseHorizontal(*E);
+ if (E->Next->OutIdx == Skip) break;
+ E->NextInLML = E->Next;
+ E = E->Next;
+ }
+ m_MinimaList.push_back(locMin);
+ m_edges.push_back(edges);
+ return true;
+ }
+
+ m_edges.push_back(edges);
+ bool leftBoundIsForward;
+ TEdge* EMin = 0;
+
+ //workaround to avoid an endless loop in the while loop below when
+ //open paths have matching start and end points ...
+ if (E->Prev->Bot == E->Prev->Top) E = E->Next;
+
+ for (;;)
+ {
+ E = FindNextLocMin(E);
+ if (E == EMin) break;
+ else if (!EMin) EMin = E;
+
+ //E and E.Prev now share a local minima (left aligned if horizontal).
+ //Compare their slopes to find which starts which bound ...
+ MinimaList::value_type locMin;
+ locMin.Y = E->Bot.Y;
+ if (E->Dx < E->Prev->Dx)
+ {
+ locMin.LeftBound = E->Prev;
+ locMin.RightBound = E;
+ leftBoundIsForward = false; //Q.nextInLML = Q.prev
+ } else
+ {
+ locMin.LeftBound = E;
+ locMin.RightBound = E->Prev;
+ leftBoundIsForward = true; //Q.nextInLML = Q.next
+ }
+
+ if (!Closed) locMin.LeftBound->WindDelta = 0;
+ else if (locMin.LeftBound->Next == locMin.RightBound)
+ locMin.LeftBound->WindDelta = -1;
+ else locMin.LeftBound->WindDelta = 1;
+ locMin.RightBound->WindDelta = -locMin.LeftBound->WindDelta;
+
+ E = ProcessBound(locMin.LeftBound, leftBoundIsForward);
+ if (E->OutIdx == Skip) E = ProcessBound(E, leftBoundIsForward);
+
+ TEdge* E2 = ProcessBound(locMin.RightBound, !leftBoundIsForward);
+ if (E2->OutIdx == Skip) E2 = ProcessBound(E2, !leftBoundIsForward);
+
+ if (locMin.LeftBound->OutIdx == Skip)
+ locMin.LeftBound = 0;
+ else if (locMin.RightBound->OutIdx == Skip)
+ locMin.RightBound = 0;
+ m_MinimaList.push_back(locMin);
+ if (!leftBoundIsForward) E = E2;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+
+bool ClipperBase::AddPaths(const Paths &ppg, PolyType PolyTyp, bool Closed)
+{
+ bool result = false;
+ for (Paths::size_type i = 0; i < ppg.size(); ++i)
+ if (AddPath(ppg[i], PolyTyp, Closed)) result = true;
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::Clear()
+{
+ DisposeLocalMinimaList();
+ for (EdgeList::size_type i = 0; i < m_edges.size(); ++i)
+ {
+ TEdge* edges = m_edges[i];
+ delete [] edges;
+ }
+ m_edges.clear();
+ m_UseFullRange = false;
+ m_HasOpenPaths = false;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::Reset()
+{
+ m_CurrentLM = m_MinimaList.begin();
+ if (m_CurrentLM == m_MinimaList.end()) return; //ie nothing to process
+ std::sort(m_MinimaList.begin(), m_MinimaList.end(), LocMinSorter());
+
+ m_Scanbeam = ScanbeamList(); //clears/resets priority_queue
+ //reset all edges ...
+ for (MinimaList::iterator lm = m_MinimaList.begin(); lm != m_MinimaList.end(); ++lm)
+ {
+ InsertScanbeam(lm->Y);
+ TEdge* e = lm->LeftBound;
+ if (e)
+ {
+ e->Curr = e->Bot;
+ e->Side = esLeft;
+ e->OutIdx = Unassigned;
+ }
+
+ e = lm->RightBound;
+ if (e)
+ {
+ e->Curr = e->Bot;
+ e->Side = esRight;
+ e->OutIdx = Unassigned;
+ }
+ }
+ m_ActiveEdges = 0;
+ m_CurrentLM = m_MinimaList.begin();
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::DisposeLocalMinimaList()
+{
+ m_MinimaList.clear();
+ m_CurrentLM = m_MinimaList.begin();
+}
+//------------------------------------------------------------------------------
+
+bool ClipperBase::PopLocalMinima(cInt Y, const LocalMinimum *&locMin)
+{
+ if (m_CurrentLM == m_MinimaList.end() || (*m_CurrentLM).Y != Y) return false;
+ locMin = &(*m_CurrentLM);
+ ++m_CurrentLM;
+ return true;
+}
+//------------------------------------------------------------------------------
+
+IntRect ClipperBase::GetBounds()
+{
+ IntRect result;
+ MinimaList::iterator lm = m_MinimaList.begin();
+ if (lm == m_MinimaList.end())
+ {
+ result.left = result.top = result.right = result.bottom = 0;
+ return result;
+ }
+ result.left = lm->LeftBound->Bot.X;
+ result.top = lm->LeftBound->Bot.Y;
+ result.right = lm->LeftBound->Bot.X;
+ result.bottom = lm->LeftBound->Bot.Y;
+ while (lm != m_MinimaList.end())
+ {
+ //todo - needs fixing for open paths
+ result.bottom = std::max(result.bottom, lm->LeftBound->Bot.Y);
+ TEdge* e = lm->LeftBound;
+ for (;;) {
+ TEdge* bottomE = e;
+ while (e->NextInLML)
+ {
+ if (e->Bot.X < result.left) result.left = e->Bot.X;
+ if (e->Bot.X > result.right) result.right = e->Bot.X;
+ e = e->NextInLML;
+ }
+ result.left = std::min(result.left, e->Bot.X);
+ result.right = std::max(result.right, e->Bot.X);
+ result.left = std::min(result.left, e->Top.X);
+ result.right = std::max(result.right, e->Top.X);
+ result.top = std::min(result.top, e->Top.Y);
+ if (bottomE == lm->LeftBound) e = lm->RightBound;
+ else break;
+ }
+ ++lm;
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::InsertScanbeam(const cInt Y)
+{
+ m_Scanbeam.push(Y);
+}
+//------------------------------------------------------------------------------
+
+bool ClipperBase::PopScanbeam(cInt &Y)
+{
+ if (m_Scanbeam.empty()) return false;
+ Y = m_Scanbeam.top();
+ m_Scanbeam.pop();
+ while (!m_Scanbeam.empty() && Y == m_Scanbeam.top()) { m_Scanbeam.pop(); } // Pop duplicates.
+ return true;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::DisposeAllOutRecs(){
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ DisposeOutRec(i);
+ m_PolyOuts.clear();
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::DisposeOutRec(PolyOutList::size_type index)
+{
+ OutRec *outRec = m_PolyOuts[index];
+ if (outRec->Pts) DisposeOutPts(outRec->Pts);
+ delete outRec;
+ m_PolyOuts[index] = 0;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::DeleteFromAEL(TEdge *e)
+{
+ TEdge* AelPrev = e->PrevInAEL;
+ TEdge* AelNext = e->NextInAEL;
+ if (!AelPrev && !AelNext && (e != m_ActiveEdges)) return; //already deleted
+ if (AelPrev) AelPrev->NextInAEL = AelNext;
+ else m_ActiveEdges = AelNext;
+ if (AelNext) AelNext->PrevInAEL = AelPrev;
+ e->NextInAEL = 0;
+ e->PrevInAEL = 0;
+}
+//------------------------------------------------------------------------------
+
+OutRec* ClipperBase::CreateOutRec()
+{
+ OutRec* result = new OutRec;
+ result->IsHole = false;
+ result->IsOpen = false;
+ result->FirstLeft = 0;
+ result->Pts = 0;
+ result->BottomPt = 0;
+ result->PolyNd = 0;
+ m_PolyOuts.push_back(result);
+ result->Idx = (int)m_PolyOuts.size() - 1;
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::SwapPositionsInAEL(TEdge *Edge1, TEdge *Edge2)
+{
+ //check that one or other edge hasn't already been removed from AEL ...
+ if (Edge1->NextInAEL == Edge1->PrevInAEL ||
+ Edge2->NextInAEL == Edge2->PrevInAEL) return;
+
+ if (Edge1->NextInAEL == Edge2)
+ {
+ TEdge* Next = Edge2->NextInAEL;
+ if (Next) Next->PrevInAEL = Edge1;
+ TEdge* Prev = Edge1->PrevInAEL;
+ if (Prev) Prev->NextInAEL = Edge2;
+ Edge2->PrevInAEL = Prev;
+ Edge2->NextInAEL = Edge1;
+ Edge1->PrevInAEL = Edge2;
+ Edge1->NextInAEL = Next;
+ }
+ else if (Edge2->NextInAEL == Edge1)
+ {
+ TEdge* Next = Edge1->NextInAEL;
+ if (Next) Next->PrevInAEL = Edge2;
+ TEdge* Prev = Edge2->PrevInAEL;
+ if (Prev) Prev->NextInAEL = Edge1;
+ Edge1->PrevInAEL = Prev;
+ Edge1->NextInAEL = Edge2;
+ Edge2->PrevInAEL = Edge1;
+ Edge2->NextInAEL = Next;
+ }
+ else
+ {
+ TEdge* Next = Edge1->NextInAEL;
+ TEdge* Prev = Edge1->PrevInAEL;
+ Edge1->NextInAEL = Edge2->NextInAEL;
+ if (Edge1->NextInAEL) Edge1->NextInAEL->PrevInAEL = Edge1;
+ Edge1->PrevInAEL = Edge2->PrevInAEL;
+ if (Edge1->PrevInAEL) Edge1->PrevInAEL->NextInAEL = Edge1;
+ Edge2->NextInAEL = Next;
+ if (Edge2->NextInAEL) Edge2->NextInAEL->PrevInAEL = Edge2;
+ Edge2->PrevInAEL = Prev;
+ if (Edge2->PrevInAEL) Edge2->PrevInAEL->NextInAEL = Edge2;
+ }
+
+ if (!Edge1->PrevInAEL) m_ActiveEdges = Edge1;
+ else if (!Edge2->PrevInAEL) m_ActiveEdges = Edge2;
+}
+//------------------------------------------------------------------------------
+
+void ClipperBase::UpdateEdgeIntoAEL(TEdge *&e)
+{
+ if (!e->NextInLML)
+ throw clipperException("UpdateEdgeIntoAEL: invalid call");
+
+ e->NextInLML->OutIdx = e->OutIdx;
+ TEdge* AelPrev = e->PrevInAEL;
+ TEdge* AelNext = e->NextInAEL;
+ if (AelPrev) AelPrev->NextInAEL = e->NextInLML;
+ else m_ActiveEdges = e->NextInLML;
+ if (AelNext) AelNext->PrevInAEL = e->NextInLML;
+ e->NextInLML->Side = e->Side;
+ e->NextInLML->WindDelta = e->WindDelta;
+ e->NextInLML->WindCnt = e->WindCnt;
+ e->NextInLML->WindCnt2 = e->WindCnt2;
+ e = e->NextInLML;
+ e->Curr = e->Bot;
+ e->PrevInAEL = AelPrev;
+ e->NextInAEL = AelNext;
+ if (!IsHorizontal(*e)) InsertScanbeam(e->Top.Y);
+}
+//------------------------------------------------------------------------------
+
+bool ClipperBase::LocalMinimaPending()
+{
+ return (m_CurrentLM != m_MinimaList.end());
+}
+
+//------------------------------------------------------------------------------
+// TClipper methods ...
+//------------------------------------------------------------------------------
+
+Clipper::Clipper(int initOptions) : ClipperBase() //constructor
+{
+ m_ExecuteLocked = false;
+ m_UseFullRange = false;
+ m_ReverseOutput = ((initOptions & ioReverseSolution) != 0);
+ m_StrictSimple = ((initOptions & ioStrictlySimple) != 0);
+ m_PreserveCollinear = ((initOptions & ioPreserveCollinear) != 0);
+ m_HasOpenPaths = false;
+#ifdef use_xyz
+ m_ZFill = 0;
+#endif
+}
+//------------------------------------------------------------------------------
+
+#ifdef use_xyz
+void Clipper::ZFillFunction(ZFillCallback zFillFunc)
+{
+ m_ZFill = zFillFunc;
+}
+//------------------------------------------------------------------------------
+#endif
+
+bool Clipper::Execute(ClipType clipType, Paths &solution, PolyFillType fillType)
+{
+ return Execute(clipType, solution, fillType, fillType);
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::Execute(ClipType clipType, PolyTree &polytree, PolyFillType fillType)
+{
+ return Execute(clipType, polytree, fillType, fillType);
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::Execute(ClipType clipType, Paths &solution,
+ PolyFillType subjFillType, PolyFillType clipFillType)
+{
+ if( m_ExecuteLocked ) return false;
+ if (m_HasOpenPaths)
+ throw clipperException("Error: PolyTree struct is needed for open path clipping.");
+ m_ExecuteLocked = true;
+ solution.resize(0);
+ m_SubjFillType = subjFillType;
+ m_ClipFillType = clipFillType;
+ m_ClipType = clipType;
+ m_UsingPolyTree = false;
+ bool succeeded = ExecuteInternal();
+ if (succeeded) BuildResult(solution);
+ DisposeAllOutRecs();
+ m_ExecuteLocked = false;
+ return succeeded;
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::Execute(ClipType clipType, PolyTree& polytree,
+ PolyFillType subjFillType, PolyFillType clipFillType)
+{
+ if( m_ExecuteLocked ) return false;
+ m_ExecuteLocked = true;
+ m_SubjFillType = subjFillType;
+ m_ClipFillType = clipFillType;
+ m_ClipType = clipType;
+ m_UsingPolyTree = true;
+ bool succeeded = ExecuteInternal();
+ if (succeeded) BuildResult2(polytree);
+ DisposeAllOutRecs();
+ m_ExecuteLocked = false;
+ return succeeded;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::FixHoleLinkage(OutRec &outrec)
+{
+ //skip OutRecs that (a) contain outermost polygons or
+ //(b) already have the correct owner/child linkage ...
+ if (!outrec.FirstLeft ||
+ (outrec.IsHole != outrec.FirstLeft->IsHole &&
+ outrec.FirstLeft->Pts)) return;
+
+ OutRec* orfl = outrec.FirstLeft;
+ while (orfl && ((orfl->IsHole == outrec.IsHole) || !orfl->Pts))
+ orfl = orfl->FirstLeft;
+ outrec.FirstLeft = orfl;
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::ExecuteInternal()
+{
+ bool succeeded = true;
+ try {
+ Reset();
+ m_Maxima = MaximaList();
+ m_SortedEdges = 0;
+
+ succeeded = true;
+ cInt botY, topY;
+ if (!PopScanbeam(botY)) return false;
+ InsertLocalMinimaIntoAEL(botY);
+ while (PopScanbeam(topY) || LocalMinimaPending())
+ {
+ ProcessHorizontals();
+ ClearGhostJoins();
+ if (!ProcessIntersections(topY))
+ {
+ succeeded = false;
+ break;
+ }
+ ProcessEdgesAtTopOfScanbeam(topY);
+ botY = topY;
+ InsertLocalMinimaIntoAEL(botY);
+ }
+ }
+ catch(...)
+ {
+ succeeded = false;
+ }
+
+ if (succeeded)
+ {
+ //fix orientations ...
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ OutRec *outRec = m_PolyOuts[i];
+ if (!outRec->Pts || outRec->IsOpen) continue;
+ if ((outRec->IsHole ^ m_ReverseOutput) == (Area(*outRec) > 0))
+ ReversePolyPtLinks(outRec->Pts);
+ }
+
+ if (!m_Joins.empty()) JoinCommonEdges();
+
+ //unfortunately FixupOutPolygon() must be done after JoinCommonEdges()
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ OutRec *outRec = m_PolyOuts[i];
+ if (!outRec->Pts) continue;
+ if (outRec->IsOpen)
+ FixupOutPolyline(*outRec);
+ else
+ FixupOutPolygon(*outRec);
+ }
+
+ if (m_StrictSimple) DoSimplePolygons();
+ }
+
+ ClearJoins();
+ ClearGhostJoins();
+ return succeeded;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::SetWindingCount(TEdge &edge)
+{
+ TEdge *e = edge.PrevInAEL;
+ //find the edge of the same polytype that immediately preceeds 'edge' in AEL
+ while (e && ((e->PolyTyp != edge.PolyTyp) || (e->WindDelta == 0))) e = e->PrevInAEL;
+ if (!e)
+ {
+ if (edge.WindDelta == 0)
+ {
+ PolyFillType pft = (edge.PolyTyp == ptSubject ? m_SubjFillType : m_ClipFillType);
+ edge.WindCnt = (pft == pftNegative ? -1 : 1);
+ }
+ else
+ edge.WindCnt = edge.WindDelta;
+ edge.WindCnt2 = 0;
+ e = m_ActiveEdges; //ie get ready to calc WindCnt2
+ }
+ else if (edge.WindDelta == 0 && m_ClipType != ctUnion)
+ {
+ edge.WindCnt = 1;
+ edge.WindCnt2 = e->WindCnt2;
+ e = e->NextInAEL; //ie get ready to calc WindCnt2
+ }
+ else if (IsEvenOddFillType(edge))
+ {
+ //EvenOdd filling ...
+ if (edge.WindDelta == 0)
+ {
+ //are we inside a subj polygon ...
+ bool Inside = true;
+ TEdge *e2 = e->PrevInAEL;
+ while (e2)
+ {
+ if (e2->PolyTyp == e->PolyTyp && e2->WindDelta != 0)
+ Inside = !Inside;
+ e2 = e2->PrevInAEL;
+ }
+ edge.WindCnt = (Inside ? 0 : 1);
+ }
+ else
+ {
+ edge.WindCnt = edge.WindDelta;
+ }
+ edge.WindCnt2 = e->WindCnt2;
+ e = e->NextInAEL; //ie get ready to calc WindCnt2
+ }
+ else
+ {
+ //nonZero, Positive or Negative filling ...
+ if (e->WindCnt * e->WindDelta < 0)
+ {
+ //prev edge is 'decreasing' WindCount (WC) toward zero
+ //so we're outside the previous polygon ...
+ if (Abs(e->WindCnt) > 1)
+ {
+ //outside prev poly but still inside another.
+ //when reversing direction of prev poly use the same WC
+ if (e->WindDelta * edge.WindDelta < 0) edge.WindCnt = e->WindCnt;
+ //otherwise continue to 'decrease' WC ...
+ else edge.WindCnt = e->WindCnt + edge.WindDelta;
+ }
+ else
+ //now outside all polys of same polytype so set own WC ...
+ edge.WindCnt = (edge.WindDelta == 0 ? 1 : edge.WindDelta);
+ } else
+ {
+ //prev edge is 'increasing' WindCount (WC) away from zero
+ //so we're inside the previous polygon ...
+ if (edge.WindDelta == 0)
+ edge.WindCnt = (e->WindCnt < 0 ? e->WindCnt - 1 : e->WindCnt + 1);
+ //if wind direction is reversing prev then use same WC
+ else if (e->WindDelta * edge.WindDelta < 0) edge.WindCnt = e->WindCnt;
+ //otherwise add to WC ...
+ else edge.WindCnt = e->WindCnt + edge.WindDelta;
+ }
+ edge.WindCnt2 = e->WindCnt2;
+ e = e->NextInAEL; //ie get ready to calc WindCnt2
+ }
+
+ //update WindCnt2 ...
+ if (IsEvenOddAltFillType(edge))
+ {
+ //EvenOdd filling ...
+ while (e != &edge)
+ {
+ if (e->WindDelta != 0)
+ edge.WindCnt2 = (edge.WindCnt2 == 0 ? 1 : 0);
+ e = e->NextInAEL;
+ }
+ } else
+ {
+ //nonZero, Positive or Negative filling ...
+ while ( e != &edge )
+ {
+ edge.WindCnt2 += e->WindDelta;
+ e = e->NextInAEL;
+ }
+ }
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::IsEvenOddFillType(const TEdge& edge) const
+{
+ if (edge.PolyTyp == ptSubject)
+ return m_SubjFillType == pftEvenOdd; else
+ return m_ClipFillType == pftEvenOdd;
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::IsEvenOddAltFillType(const TEdge& edge) const
+{
+ if (edge.PolyTyp == ptSubject)
+ return m_ClipFillType == pftEvenOdd; else
+ return m_SubjFillType == pftEvenOdd;
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::IsContributing(const TEdge& edge) const
+{
+ PolyFillType pft, pft2;
+ if (edge.PolyTyp == ptSubject)
+ {
+ pft = m_SubjFillType;
+ pft2 = m_ClipFillType;
+ } else
+ {
+ pft = m_ClipFillType;
+ pft2 = m_SubjFillType;
+ }
+
+ switch(pft)
+ {
+ case pftEvenOdd:
+ //return false if a subj line has been flagged as inside a subj polygon
+ if (edge.WindDelta == 0 && edge.WindCnt != 1) return false;
+ break;
+ case pftNonZero:
+ if (Abs(edge.WindCnt) != 1) return false;
+ break;
+ case pftPositive:
+ if (edge.WindCnt != 1) return false;
+ break;
+ default: //pftNegative
+ if (edge.WindCnt != -1) return false;
+ }
+
+ switch(m_ClipType)
+ {
+ case ctIntersection:
+ switch(pft2)
+ {
+ case pftEvenOdd:
+ case pftNonZero:
+ return (edge.WindCnt2 != 0);
+ case pftPositive:
+ return (edge.WindCnt2 > 0);
+ default:
+ return (edge.WindCnt2 < 0);
+ }
+ break;
+ case ctUnion:
+ switch(pft2)
+ {
+ case pftEvenOdd:
+ case pftNonZero:
+ return (edge.WindCnt2 == 0);
+ case pftPositive:
+ return (edge.WindCnt2 <= 0);
+ default:
+ return (edge.WindCnt2 >= 0);
+ }
+ break;
+ case ctDifference:
+ if (edge.PolyTyp == ptSubject)
+ switch(pft2)
+ {
+ case pftEvenOdd:
+ case pftNonZero:
+ return (edge.WindCnt2 == 0);
+ case pftPositive:
+ return (edge.WindCnt2 <= 0);
+ default:
+ return (edge.WindCnt2 >= 0);
+ }
+ else
+ switch(pft2)
+ {
+ case pftEvenOdd:
+ case pftNonZero:
+ return (edge.WindCnt2 != 0);
+ case pftPositive:
+ return (edge.WindCnt2 > 0);
+ default:
+ return (edge.WindCnt2 < 0);
+ }
+ break;
+ case ctXor:
+ if (edge.WindDelta == 0) //XOr always contributing unless open
+ switch(pft2)
+ {
+ case pftEvenOdd:
+ case pftNonZero:
+ return (edge.WindCnt2 == 0);
+ case pftPositive:
+ return (edge.WindCnt2 <= 0);
+ default:
+ return (edge.WindCnt2 >= 0);
+ }
+ else
+ return true;
+ break;
+ default:
+ return true;
+ }
+}
+//------------------------------------------------------------------------------
+
+OutPt* Clipper::AddLocalMinPoly(TEdge *e1, TEdge *e2, const IntPoint &Pt)
+{
+ OutPt* result;
+ TEdge *e, *prevE;
+ if (IsHorizontal(*e2) || ( e1->Dx > e2->Dx ))
+ {
+ result = AddOutPt(e1, Pt);
+ e2->OutIdx = e1->OutIdx;
+ e1->Side = esLeft;
+ e2->Side = esRight;
+ e = e1;
+ if (e->PrevInAEL == e2)
+ prevE = e2->PrevInAEL;
+ else
+ prevE = e->PrevInAEL;
+ } else
+ {
+ result = AddOutPt(e2, Pt);
+ e1->OutIdx = e2->OutIdx;
+ e1->Side = esRight;
+ e2->Side = esLeft;
+ e = e2;
+ if (e->PrevInAEL == e1)
+ prevE = e1->PrevInAEL;
+ else
+ prevE = e->PrevInAEL;
+ }
+
+ if (prevE && prevE->OutIdx >= 0 && prevE->Top.Y < Pt.Y && e->Top.Y < Pt.Y)
+ {
+ cInt xPrev = TopX(*prevE, Pt.Y);
+ cInt xE = TopX(*e, Pt.Y);
+ if (xPrev == xE && (e->WindDelta != 0) && (prevE->WindDelta != 0) &&
+ SlopesEqual(IntPoint(xPrev, Pt.Y), prevE->Top, IntPoint(xE, Pt.Y), e->Top, m_UseFullRange))
+ {
+ OutPt* outPt = AddOutPt(prevE, Pt);
+ AddJoin(result, outPt, e->Top);
+ }
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::AddLocalMaxPoly(TEdge *e1, TEdge *e2, const IntPoint &Pt)
+{
+ AddOutPt( e1, Pt );
+ if (e2->WindDelta == 0) AddOutPt(e2, Pt);
+ if( e1->OutIdx == e2->OutIdx )
+ {
+ e1->OutIdx = Unassigned;
+ e2->OutIdx = Unassigned;
+ }
+ else if (e1->OutIdx < e2->OutIdx)
+ AppendPolygon(e1, e2);
+ else
+ AppendPolygon(e2, e1);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::AddEdgeToSEL(TEdge *edge)
+{
+ //SEL pointers in PEdge are reused to build a list of horizontal edges.
+ //However, we don't need to worry about order with horizontal edge processing.
+ if( !m_SortedEdges )
+ {
+ m_SortedEdges = edge;
+ edge->PrevInSEL = 0;
+ edge->NextInSEL = 0;
+ }
+ else
+ {
+ edge->NextInSEL = m_SortedEdges;
+ edge->PrevInSEL = 0;
+ m_SortedEdges->PrevInSEL = edge;
+ m_SortedEdges = edge;
+ }
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::PopEdgeFromSEL(TEdge *&edge)
+{
+ if (!m_SortedEdges) return false;
+ edge = m_SortedEdges;
+ DeleteFromSEL(m_SortedEdges);
+ return true;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::CopyAELToSEL()
+{
+ TEdge* e = m_ActiveEdges;
+ m_SortedEdges = e;
+ while ( e )
+ {
+ e->PrevInSEL = e->PrevInAEL;
+ e->NextInSEL = e->NextInAEL;
+ e = e->NextInAEL;
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::AddJoin(OutPt *op1, OutPt *op2, const IntPoint OffPt)
+{
+ Join* j = new Join;
+ j->OutPt1 = op1;
+ j->OutPt2 = op2;
+ j->OffPt = OffPt;
+ m_Joins.push_back(j);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::ClearJoins()
+{
+ for (JoinList::size_type i = 0; i < m_Joins.size(); i++)
+ delete m_Joins[i];
+ m_Joins.resize(0);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::ClearGhostJoins()
+{
+ for (JoinList::size_type i = 0; i < m_GhostJoins.size(); i++)
+ delete m_GhostJoins[i];
+ m_GhostJoins.resize(0);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::AddGhostJoin(OutPt *op, const IntPoint OffPt)
+{
+ Join* j = new Join;
+ j->OutPt1 = op;
+ j->OutPt2 = 0;
+ j->OffPt = OffPt;
+ m_GhostJoins.push_back(j);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::InsertLocalMinimaIntoAEL(const cInt botY)
+{
+ const LocalMinimum *lm;
+ while (PopLocalMinima(botY, lm))
+ {
+ TEdge* lb = lm->LeftBound;
+ TEdge* rb = lm->RightBound;
+
+ OutPt *Op1 = 0;
+ if (!lb)
+ {
+ //nb: don't insert LB into either AEL or SEL
+ InsertEdgeIntoAEL(rb, 0);
+ SetWindingCount(*rb);
+ if (IsContributing(*rb))
+ Op1 = AddOutPt(rb, rb->Bot);
+ }
+ else if (!rb)
+ {
+ InsertEdgeIntoAEL(lb, 0);
+ SetWindingCount(*lb);
+ if (IsContributing(*lb))
+ Op1 = AddOutPt(lb, lb->Bot);
+ InsertScanbeam(lb->Top.Y);
+ }
+ else
+ {
+ InsertEdgeIntoAEL(lb, 0);
+ InsertEdgeIntoAEL(rb, lb);
+ SetWindingCount( *lb );
+ rb->WindCnt = lb->WindCnt;
+ rb->WindCnt2 = lb->WindCnt2;
+ if (IsContributing(*lb))
+ Op1 = AddLocalMinPoly(lb, rb, lb->Bot);
+ InsertScanbeam(lb->Top.Y);
+ }
+
+ if (rb)
+ {
+ if (IsHorizontal(*rb))
+ {
+ AddEdgeToSEL(rb);
+ if (rb->NextInLML)
+ InsertScanbeam(rb->NextInLML->Top.Y);
+ }
+ else InsertScanbeam( rb->Top.Y );
+ }
+
+ if (!lb || !rb) continue;
+
+ //if any output polygons share an edge, they'll need joining later ...
+ if (Op1 && IsHorizontal(*rb) &&
+ m_GhostJoins.size() > 0 && (rb->WindDelta != 0))
+ {
+ for (JoinList::size_type i = 0; i < m_GhostJoins.size(); ++i)
+ {
+ Join* jr = m_GhostJoins[i];
+ //if the horizontal Rb and a 'ghost' horizontal overlap, then convert
+ //the 'ghost' join to a real join ready for later ...
+ if (HorzSegmentsOverlap(jr->OutPt1->Pt.X, jr->OffPt.X, rb->Bot.X, rb->Top.X))
+ AddJoin(jr->OutPt1, Op1, jr->OffPt);
+ }
+ }
+
+ if (lb->OutIdx >= 0 && lb->PrevInAEL &&
+ lb->PrevInAEL->Curr.X == lb->Bot.X &&
+ lb->PrevInAEL->OutIdx >= 0 &&
+ SlopesEqual(lb->PrevInAEL->Bot, lb->PrevInAEL->Top, lb->Curr, lb->Top, m_UseFullRange) &&
+ (lb->WindDelta != 0) && (lb->PrevInAEL->WindDelta != 0))
+ {
+ OutPt *Op2 = AddOutPt(lb->PrevInAEL, lb->Bot);
+ AddJoin(Op1, Op2, lb->Top);
+ }
+
+ if(lb->NextInAEL != rb)
+ {
+
+ if (rb->OutIdx >= 0 && rb->PrevInAEL->OutIdx >= 0 &&
+ SlopesEqual(rb->PrevInAEL->Curr, rb->PrevInAEL->Top, rb->Curr, rb->Top, m_UseFullRange) &&
+ (rb->WindDelta != 0) && (rb->PrevInAEL->WindDelta != 0))
+ {
+ OutPt *Op2 = AddOutPt(rb->PrevInAEL, rb->Bot);
+ AddJoin(Op1, Op2, rb->Top);
+ }
+
+ TEdge* e = lb->NextInAEL;
+ if (e)
+ {
+ while( e != rb )
+ {
+ //nb: For calculating winding counts etc, IntersectEdges() assumes
+ //that param1 will be to the Right of param2 ABOVE the intersection ...
+ IntersectEdges(rb , e , lb->Curr); //order important here
+ e = e->NextInAEL;
+ }
+ }
+ }
+
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::DeleteFromSEL(TEdge *e)
+{
+ TEdge* SelPrev = e->PrevInSEL;
+ TEdge* SelNext = e->NextInSEL;
+ if( !SelPrev && !SelNext && (e != m_SortedEdges) ) return; //already deleted
+ if( SelPrev ) SelPrev->NextInSEL = SelNext;
+ else m_SortedEdges = SelNext;
+ if( SelNext ) SelNext->PrevInSEL = SelPrev;
+ e->NextInSEL = 0;
+ e->PrevInSEL = 0;
+}
+//------------------------------------------------------------------------------
+
+#ifdef use_xyz
+void Clipper::SetZ(IntPoint& pt, TEdge& e1, TEdge& e2)
+{
+ if (pt.Z != 0 || !m_ZFill) return;
+ else if (pt == e1.Bot) pt.Z = e1.Bot.Z;
+ else if (pt == e1.Top) pt.Z = e1.Top.Z;
+ else if (pt == e2.Bot) pt.Z = e2.Bot.Z;
+ else if (pt == e2.Top) pt.Z = e2.Top.Z;
+ else (*m_ZFill)(e1.Bot, e1.Top, e2.Bot, e2.Top, pt);
+}
+//------------------------------------------------------------------------------
+#endif
+
+void Clipper::IntersectEdges(TEdge *e1, TEdge *e2, IntPoint &Pt)
+{
+ bool e1Contributing = ( e1->OutIdx >= 0 );
+ bool e2Contributing = ( e2->OutIdx >= 0 );
+
+#ifdef use_xyz
+ SetZ(Pt, *e1, *e2);
+#endif
+
+#ifdef use_lines
+ //if either edge is on an OPEN path ...
+ if (e1->WindDelta == 0 || e2->WindDelta == 0)
+ {
+ //ignore subject-subject open path intersections UNLESS they
+ //are both open paths, AND they are both 'contributing maximas' ...
+ if (e1->WindDelta == 0 && e2->WindDelta == 0) return;
+
+ //if intersecting a subj line with a subj poly ...
+ else if (e1->PolyTyp == e2->PolyTyp &&
+ e1->WindDelta != e2->WindDelta && m_ClipType == ctUnion)
+ {
+ if (e1->WindDelta == 0)
+ {
+ if (e2Contributing)
+ {
+ AddOutPt(e1, Pt);
+ if (e1Contributing) e1->OutIdx = Unassigned;
+ }
+ }
+ else
+ {
+ if (e1Contributing)
+ {
+ AddOutPt(e2, Pt);
+ if (e2Contributing) e2->OutIdx = Unassigned;
+ }
+ }
+ }
+ else if (e1->PolyTyp != e2->PolyTyp)
+ {
+ //toggle subj open path OutIdx on/off when Abs(clip.WndCnt) == 1 ...
+ if ((e1->WindDelta == 0) && abs(e2->WindCnt) == 1 &&
+ (m_ClipType != ctUnion || e2->WindCnt2 == 0))
+ {
+ AddOutPt(e1, Pt);
+ if (e1Contributing) e1->OutIdx = Unassigned;
+ }
+ else if ((e2->WindDelta == 0) && (abs(e1->WindCnt) == 1) &&
+ (m_ClipType != ctUnion || e1->WindCnt2 == 0))
+ {
+ AddOutPt(e2, Pt);
+ if (e2Contributing) e2->OutIdx = Unassigned;
+ }
+ }
+ return;
+ }
+#endif
+
+ //update winding counts...
+ //assumes that e1 will be to the Right of e2 ABOVE the intersection
+ if ( e1->PolyTyp == e2->PolyTyp )
+ {
+ if ( IsEvenOddFillType( *e1) )
+ {
+ int oldE1WindCnt = e1->WindCnt;
+ e1->WindCnt = e2->WindCnt;
+ e2->WindCnt = oldE1WindCnt;
+ } else
+ {
+ if (e1->WindCnt + e2->WindDelta == 0 ) e1->WindCnt = -e1->WindCnt;
+ else e1->WindCnt += e2->WindDelta;
+ if ( e2->WindCnt - e1->WindDelta == 0 ) e2->WindCnt = -e2->WindCnt;
+ else e2->WindCnt -= e1->WindDelta;
+ }
+ } else
+ {
+ if (!IsEvenOddFillType(*e2)) e1->WindCnt2 += e2->WindDelta;
+ else e1->WindCnt2 = ( e1->WindCnt2 == 0 ) ? 1 : 0;
+ if (!IsEvenOddFillType(*e1)) e2->WindCnt2 -= e1->WindDelta;
+ else e2->WindCnt2 = ( e2->WindCnt2 == 0 ) ? 1 : 0;
+ }
+
+ PolyFillType e1FillType, e2FillType, e1FillType2, e2FillType2;
+ if (e1->PolyTyp == ptSubject)
+ {
+ e1FillType = m_SubjFillType;
+ e1FillType2 = m_ClipFillType;
+ } else
+ {
+ e1FillType = m_ClipFillType;
+ e1FillType2 = m_SubjFillType;
+ }
+ if (e2->PolyTyp == ptSubject)
+ {
+ e2FillType = m_SubjFillType;
+ e2FillType2 = m_ClipFillType;
+ } else
+ {
+ e2FillType = m_ClipFillType;
+ e2FillType2 = m_SubjFillType;
+ }
+
+ cInt e1Wc, e2Wc;
+ switch (e1FillType)
+ {
+ case pftPositive: e1Wc = e1->WindCnt; break;
+ case pftNegative: e1Wc = -e1->WindCnt; break;
+ default: e1Wc = Abs(e1->WindCnt);
+ }
+ switch(e2FillType)
+ {
+ case pftPositive: e2Wc = e2->WindCnt; break;
+ case pftNegative: e2Wc = -e2->WindCnt; break;
+ default: e2Wc = Abs(e2->WindCnt);
+ }
+
+ if ( e1Contributing && e2Contributing )
+ {
+ if ((e1Wc != 0 && e1Wc != 1) || (e2Wc != 0 && e2Wc != 1) ||
+ (e1->PolyTyp != e2->PolyTyp && m_ClipType != ctXor) )
+ {
+ AddLocalMaxPoly(e1, e2, Pt);
+ }
+ else
+ {
+ AddOutPt(e1, Pt);
+ AddOutPt(e2, Pt);
+ SwapSides( *e1 , *e2 );
+ SwapPolyIndexes( *e1 , *e2 );
+ }
+ }
+ else if ( e1Contributing )
+ {
+ if (e2Wc == 0 || e2Wc == 1)
+ {
+ AddOutPt(e1, Pt);
+ SwapSides(*e1, *e2);
+ SwapPolyIndexes(*e1, *e2);
+ }
+ }
+ else if ( e2Contributing )
+ {
+ if (e1Wc == 0 || e1Wc == 1)
+ {
+ AddOutPt(e2, Pt);
+ SwapSides(*e1, *e2);
+ SwapPolyIndexes(*e1, *e2);
+ }
+ }
+ else if ( (e1Wc == 0 || e1Wc == 1) && (e2Wc == 0 || e2Wc == 1))
+ {
+ //neither edge is currently contributing ...
+
+ cInt e1Wc2, e2Wc2;
+ switch (e1FillType2)
+ {
+ case pftPositive: e1Wc2 = e1->WindCnt2; break;
+ case pftNegative : e1Wc2 = -e1->WindCnt2; break;
+ default: e1Wc2 = Abs(e1->WindCnt2);
+ }
+ switch (e2FillType2)
+ {
+ case pftPositive: e2Wc2 = e2->WindCnt2; break;
+ case pftNegative: e2Wc2 = -e2->WindCnt2; break;
+ default: e2Wc2 = Abs(e2->WindCnt2);
+ }
+
+ if (e1->PolyTyp != e2->PolyTyp)
+ {
+ AddLocalMinPoly(e1, e2, Pt);
+ }
+ else if (e1Wc == 1 && e2Wc == 1)
+ switch( m_ClipType ) {
+ case ctIntersection:
+ if (e1Wc2 > 0 && e2Wc2 > 0)
+ AddLocalMinPoly(e1, e2, Pt);
+ break;
+ case ctUnion:
+ if ( e1Wc2 <= 0 && e2Wc2 <= 0 )
+ AddLocalMinPoly(e1, e2, Pt);
+ break;
+ case ctDifference:
+ if (((e1->PolyTyp == ptClip) && (e1Wc2 > 0) && (e2Wc2 > 0)) ||
+ ((e1->PolyTyp == ptSubject) && (e1Wc2 <= 0) && (e2Wc2 <= 0)))
+ AddLocalMinPoly(e1, e2, Pt);
+ break;
+ case ctXor:
+ AddLocalMinPoly(e1, e2, Pt);
+ }
+ else
+ SwapSides( *e1, *e2 );
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::SetHoleState(TEdge *e, OutRec *outrec)
+{
+ TEdge *e2 = e->PrevInAEL;
+ TEdge *eTmp = 0;
+ while (e2)
+ {
+ if (e2->OutIdx >= 0 && e2->WindDelta != 0)
+ {
+ if (!eTmp) eTmp = e2;
+ else if (eTmp->OutIdx == e2->OutIdx) eTmp = 0;
+ }
+ e2 = e2->PrevInAEL;
+ }
+ if (!eTmp)
+ {
+ outrec->FirstLeft = 0;
+ outrec->IsHole = false;
+ }
+ else
+ {
+ outrec->FirstLeft = m_PolyOuts[eTmp->OutIdx];
+ outrec->IsHole = !outrec->FirstLeft->IsHole;
+ }
+}
+//------------------------------------------------------------------------------
+
+OutRec* GetLowermostRec(OutRec *outRec1, OutRec *outRec2)
+{
+ //work out which polygon fragment has the correct hole state ...
+ if (!outRec1->BottomPt)
+ outRec1->BottomPt = GetBottomPt(outRec1->Pts);
+ if (!outRec2->BottomPt)
+ outRec2->BottomPt = GetBottomPt(outRec2->Pts);
+ OutPt *OutPt1 = outRec1->BottomPt;
+ OutPt *OutPt2 = outRec2->BottomPt;
+ if (OutPt1->Pt.Y > OutPt2->Pt.Y) return outRec1;
+ else if (OutPt1->Pt.Y < OutPt2->Pt.Y) return outRec2;
+ else if (OutPt1->Pt.X < OutPt2->Pt.X) return outRec1;
+ else if (OutPt1->Pt.X > OutPt2->Pt.X) return outRec2;
+ else if (OutPt1->Next == OutPt1) return outRec2;
+ else if (OutPt2->Next == OutPt2) return outRec1;
+ else if (FirstIsBottomPt(OutPt1, OutPt2)) return outRec1;
+ else return outRec2;
+}
+//------------------------------------------------------------------------------
+
+bool OutRec1RightOfOutRec2(OutRec* outRec1, OutRec* outRec2)
+{
+ do
+ {
+ outRec1 = outRec1->FirstLeft;
+ if (outRec1 == outRec2) return true;
+ } while (outRec1);
+ return false;
+}
+//------------------------------------------------------------------------------
+
+OutRec* Clipper::GetOutRec(int Idx)
+{
+ OutRec* outrec = m_PolyOuts[Idx];
+ while (outrec != m_PolyOuts[outrec->Idx])
+ outrec = m_PolyOuts[outrec->Idx];
+ return outrec;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::AppendPolygon(TEdge *e1, TEdge *e2)
+{
+ //get the start and ends of both output polygons ...
+ OutRec *outRec1 = m_PolyOuts[e1->OutIdx];
+ OutRec *outRec2 = m_PolyOuts[e2->OutIdx];
+
+ OutRec *holeStateRec;
+ if (OutRec1RightOfOutRec2(outRec1, outRec2))
+ holeStateRec = outRec2;
+ else if (OutRec1RightOfOutRec2(outRec2, outRec1))
+ holeStateRec = outRec1;
+ else
+ holeStateRec = GetLowermostRec(outRec1, outRec2);
+
+ //get the start and ends of both output polygons and
+ //join e2 poly onto e1 poly and delete pointers to e2 ...
+
+ OutPt* p1_lft = outRec1->Pts;
+ OutPt* p1_rt = p1_lft->Prev;
+ OutPt* p2_lft = outRec2->Pts;
+ OutPt* p2_rt = p2_lft->Prev;
+
+ //join e2 poly onto e1 poly and delete pointers to e2 ...
+ if( e1->Side == esLeft )
+ {
+ if( e2->Side == esLeft )
+ {
+ //z y x a b c
+ ReversePolyPtLinks(p2_lft);
+ p2_lft->Next = p1_lft;
+ p1_lft->Prev = p2_lft;
+ p1_rt->Next = p2_rt;
+ p2_rt->Prev = p1_rt;
+ outRec1->Pts = p2_rt;
+ } else
+ {
+ //x y z a b c
+ p2_rt->Next = p1_lft;
+ p1_lft->Prev = p2_rt;
+ p2_lft->Prev = p1_rt;
+ p1_rt->Next = p2_lft;
+ outRec1->Pts = p2_lft;
+ }
+ } else
+ {
+ if( e2->Side == esRight )
+ {
+ //a b c z y x
+ ReversePolyPtLinks(p2_lft);
+ p1_rt->Next = p2_rt;
+ p2_rt->Prev = p1_rt;
+ p2_lft->Next = p1_lft;
+ p1_lft->Prev = p2_lft;
+ } else
+ {
+ //a b c x y z
+ p1_rt->Next = p2_lft;
+ p2_lft->Prev = p1_rt;
+ p1_lft->Prev = p2_rt;
+ p2_rt->Next = p1_lft;
+ }
+ }
+
+ outRec1->BottomPt = 0;
+ if (holeStateRec == outRec2)
+ {
+ if (outRec2->FirstLeft != outRec1)
+ outRec1->FirstLeft = outRec2->FirstLeft;
+ outRec1->IsHole = outRec2->IsHole;
+ }
+ outRec2->Pts = 0;
+ outRec2->BottomPt = 0;
+ outRec2->FirstLeft = outRec1;
+
+ int OKIdx = e1->OutIdx;
+ int ObsoleteIdx = e2->OutIdx;
+
+ e1->OutIdx = Unassigned; //nb: safe because we only get here via AddLocalMaxPoly
+ e2->OutIdx = Unassigned;
+
+ TEdge* e = m_ActiveEdges;
+ while( e )
+ {
+ if( e->OutIdx == ObsoleteIdx )
+ {
+ e->OutIdx = OKIdx;
+ e->Side = e1->Side;
+ break;
+ }
+ e = e->NextInAEL;
+ }
+
+ outRec2->Idx = outRec1->Idx;
+}
+//------------------------------------------------------------------------------
+
+OutPt* Clipper::AddOutPt(TEdge *e, const IntPoint &pt)
+{
+ if( e->OutIdx < 0 )
+ {
+ OutRec *outRec = CreateOutRec();
+ outRec->IsOpen = (e->WindDelta == 0);
+ OutPt* newOp = new OutPt;
+ outRec->Pts = newOp;
+ newOp->Idx = outRec->Idx;
+ newOp->Pt = pt;
+ newOp->Next = newOp;
+ newOp->Prev = newOp;
+ if (!outRec->IsOpen)
+ SetHoleState(e, outRec);
+ e->OutIdx = outRec->Idx;
+ return newOp;
+ } else
+ {
+ OutRec *outRec = m_PolyOuts[e->OutIdx];
+ //OutRec.Pts is the 'Left-most' point & OutRec.Pts.Prev is the 'Right-most'
+ OutPt* op = outRec->Pts;
+
+ bool ToFront = (e->Side == esLeft);
+ if (ToFront && (pt == op->Pt)) return op;
+ else if (!ToFront && (pt == op->Prev->Pt)) return op->Prev;
+
+ OutPt* newOp = new OutPt;
+ newOp->Idx = outRec->Idx;
+ newOp->Pt = pt;
+ newOp->Next = op;
+ newOp->Prev = op->Prev;
+ newOp->Prev->Next = newOp;
+ op->Prev = newOp;
+ if (ToFront) outRec->Pts = newOp;
+ return newOp;
+ }
+}
+//------------------------------------------------------------------------------
+
+OutPt* Clipper::GetLastOutPt(TEdge *e)
+{
+ OutRec *outRec = m_PolyOuts[e->OutIdx];
+ if (e->Side == esLeft)
+ return outRec->Pts;
+ else
+ return outRec->Pts->Prev;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::ProcessHorizontals()
+{
+ TEdge* horzEdge;
+ while (PopEdgeFromSEL(horzEdge))
+ ProcessHorizontal(horzEdge);
+}
+//------------------------------------------------------------------------------
+
+inline bool IsMinima(TEdge *e)
+{
+ return e && (e->Prev->NextInLML != e) && (e->Next->NextInLML != e);
+}
+//------------------------------------------------------------------------------
+
+inline bool IsMaxima(TEdge *e, const cInt Y)
+{
+ return e && e->Top.Y == Y && !e->NextInLML;
+}
+//------------------------------------------------------------------------------
+
+inline bool IsIntermediate(TEdge *e, const cInt Y)
+{
+ return e->Top.Y == Y && e->NextInLML;
+}
+//------------------------------------------------------------------------------
+
+TEdge *GetMaximaPair(TEdge *e)
+{
+ if ((e->Next->Top == e->Top) && !e->Next->NextInLML)
+ return e->Next;
+ else if ((e->Prev->Top == e->Top) && !e->Prev->NextInLML)
+ return e->Prev;
+ else return 0;
+}
+//------------------------------------------------------------------------------
+
+TEdge *GetMaximaPairEx(TEdge *e)
+{
+ //as GetMaximaPair() but returns 0 if MaxPair isn't in AEL (unless it's horizontal)
+ TEdge* result = GetMaximaPair(e);
+ if (result && (result->OutIdx == Skip ||
+ (result->NextInAEL == result->PrevInAEL && !IsHorizontal(*result)))) return 0;
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::SwapPositionsInSEL(TEdge *Edge1, TEdge *Edge2)
+{
+ if( !( Edge1->NextInSEL ) && !( Edge1->PrevInSEL ) ) return;
+ if( !( Edge2->NextInSEL ) && !( Edge2->PrevInSEL ) ) return;
+
+ if( Edge1->NextInSEL == Edge2 )
+ {
+ TEdge* Next = Edge2->NextInSEL;
+ if( Next ) Next->PrevInSEL = Edge1;
+ TEdge* Prev = Edge1->PrevInSEL;
+ if( Prev ) Prev->NextInSEL = Edge2;
+ Edge2->PrevInSEL = Prev;
+ Edge2->NextInSEL = Edge1;
+ Edge1->PrevInSEL = Edge2;
+ Edge1->NextInSEL = Next;
+ }
+ else if( Edge2->NextInSEL == Edge1 )
+ {
+ TEdge* Next = Edge1->NextInSEL;
+ if( Next ) Next->PrevInSEL = Edge2;
+ TEdge* Prev = Edge2->PrevInSEL;
+ if( Prev ) Prev->NextInSEL = Edge1;
+ Edge1->PrevInSEL = Prev;
+ Edge1->NextInSEL = Edge2;
+ Edge2->PrevInSEL = Edge1;
+ Edge2->NextInSEL = Next;
+ }
+ else
+ {
+ TEdge* Next = Edge1->NextInSEL;
+ TEdge* Prev = Edge1->PrevInSEL;
+ Edge1->NextInSEL = Edge2->NextInSEL;
+ if( Edge1->NextInSEL ) Edge1->NextInSEL->PrevInSEL = Edge1;
+ Edge1->PrevInSEL = Edge2->PrevInSEL;
+ if( Edge1->PrevInSEL ) Edge1->PrevInSEL->NextInSEL = Edge1;
+ Edge2->NextInSEL = Next;
+ if( Edge2->NextInSEL ) Edge2->NextInSEL->PrevInSEL = Edge2;
+ Edge2->PrevInSEL = Prev;
+ if( Edge2->PrevInSEL ) Edge2->PrevInSEL->NextInSEL = Edge2;
+ }
+
+ if( !Edge1->PrevInSEL ) m_SortedEdges = Edge1;
+ else if( !Edge2->PrevInSEL ) m_SortedEdges = Edge2;
+}
+//------------------------------------------------------------------------------
+
+TEdge* GetNextInAEL(TEdge *e, Direction dir)
+{
+ return dir == dLeftToRight ? e->NextInAEL : e->PrevInAEL;
+}
+//------------------------------------------------------------------------------
+
+void GetHorzDirection(TEdge& HorzEdge, Direction& Dir, cInt& Left, cInt& Right)
+{
+ if (HorzEdge.Bot.X < HorzEdge.Top.X)
+ {
+ Left = HorzEdge.Bot.X;
+ Right = HorzEdge.Top.X;
+ Dir = dLeftToRight;
+ } else
+ {
+ Left = HorzEdge.Top.X;
+ Right = HorzEdge.Bot.X;
+ Dir = dRightToLeft;
+ }
+}
+//------------------------------------------------------------------------
+
+/*******************************************************************************
+* Notes: Horizontal edges (HEs) at scanline intersections (ie at the Top or *
+* Bottom of a scanbeam) are processed as if layered. The order in which HEs *
+* are processed doesn't matter. HEs intersect with other HE Bot.Xs only [#] *
+* (or they could intersect with Top.Xs only, ie EITHER Bot.Xs OR Top.Xs), *
+* and with other non-horizontal edges [*]. Once these intersections are *
+* processed, intermediate HEs then 'promote' the Edge above (NextInLML) into *
+* the AEL. These 'promoted' edges may in turn intersect [%] with other HEs. *
+*******************************************************************************/
+
+void Clipper::ProcessHorizontal(TEdge *horzEdge)
+{
+ Direction dir;
+ cInt horzLeft, horzRight;
+ bool IsOpen = (horzEdge->WindDelta == 0);
+
+ GetHorzDirection(*horzEdge, dir, horzLeft, horzRight);
+
+ TEdge* eLastHorz = horzEdge, *eMaxPair = 0;
+ while (eLastHorz->NextInLML && IsHorizontal(*eLastHorz->NextInLML))
+ eLastHorz = eLastHorz->NextInLML;
+ if (!eLastHorz->NextInLML)
+ eMaxPair = GetMaximaPair(eLastHorz);
+
+ MaximaList::const_iterator maxIt;
+ MaximaList::const_reverse_iterator maxRit;
+ if (m_Maxima.size() > 0)
+ {
+ //get the first maxima in range (X) ...
+ if (dir == dLeftToRight)
+ {
+ maxIt = m_Maxima.begin();
+ while (maxIt != m_Maxima.end() && *maxIt <= horzEdge->Bot.X) maxIt++;
+ if (maxIt != m_Maxima.end() && *maxIt >= eLastHorz->Top.X)
+ maxIt = m_Maxima.end();
+ }
+ else
+ {
+ maxRit = m_Maxima.rbegin();
+ while (maxRit != m_Maxima.rend() && *maxRit > horzEdge->Bot.X) maxRit++;
+ if (maxRit != m_Maxima.rend() && *maxRit <= eLastHorz->Top.X)
+ maxRit = m_Maxima.rend();
+ }
+ }
+
+ OutPt* op1 = 0;
+
+ for (;;) //loop through consec. horizontal edges
+ {
+
+ bool IsLastHorz = (horzEdge == eLastHorz);
+ TEdge* e = GetNextInAEL(horzEdge, dir);
+ while(e)
+ {
+
+ //this code block inserts extra coords into horizontal edges (in output
+ //polygons) whereever maxima touch these horizontal edges. This helps
+ //'simplifying' polygons (ie if the Simplify property is set).
+ if (m_Maxima.size() > 0)
+ {
+ if (dir == dLeftToRight)
+ {
+ while (maxIt != m_Maxima.end() && *maxIt < e->Curr.X)
+ {
+ if (horzEdge->OutIdx >= 0 && !IsOpen)
+ AddOutPt(horzEdge, IntPoint(*maxIt, horzEdge->Bot.Y));
+ maxIt++;
+ }
+ }
+ else
+ {
+ while (maxRit != m_Maxima.rend() && *maxRit > e->Curr.X)
+ {
+ if (horzEdge->OutIdx >= 0 && !IsOpen)
+ AddOutPt(horzEdge, IntPoint(*maxRit, horzEdge->Bot.Y));
+ maxRit++;
+ }
+ }
+ };
+
+ if ((dir == dLeftToRight && e->Curr.X > horzRight) ||
+ (dir == dRightToLeft && e->Curr.X < horzLeft)) break;
+
+ //Also break if we've got to the end of an intermediate horizontal edge ...
+ //nb: Smaller Dx's are to the right of larger Dx's ABOVE the horizontal.
+ if (e->Curr.X == horzEdge->Top.X && horzEdge->NextInLML &&
+ e->Dx < horzEdge->NextInLML->Dx) break;
+
+ if (horzEdge->OutIdx >= 0 && !IsOpen) //note: may be done multiple times
+ {
+#ifdef use_xyz
+ if (dir == dLeftToRight) SetZ(e->Curr, *horzEdge, *e);
+ else SetZ(e->Curr, *e, *horzEdge);
+#endif
+ op1 = AddOutPt(horzEdge, e->Curr);
+ TEdge* eNextHorz = m_SortedEdges;
+ while (eNextHorz)
+ {
+ if (eNextHorz->OutIdx >= 0 &&
+ HorzSegmentsOverlap(horzEdge->Bot.X,
+ horzEdge->Top.X, eNextHorz->Bot.X, eNextHorz->Top.X))
+ {
+ OutPt* op2 = GetLastOutPt(eNextHorz);
+ AddJoin(op2, op1, eNextHorz->Top);
+ }
+ eNextHorz = eNextHorz->NextInSEL;
+ }
+ AddGhostJoin(op1, horzEdge->Bot);
+ }
+
+ //OK, so far we're still in range of the horizontal Edge but make sure
+ //we're at the last of consec. horizontals when matching with eMaxPair
+ if(e == eMaxPair && IsLastHorz)
+ {
+ if (horzEdge->OutIdx >= 0)
+ AddLocalMaxPoly(horzEdge, eMaxPair, horzEdge->Top);
+ DeleteFromAEL(horzEdge);
+ DeleteFromAEL(eMaxPair);
+ return;
+ }
+
+ if(dir == dLeftToRight)
+ {
+ IntPoint Pt = IntPoint(e->Curr.X, horzEdge->Curr.Y);
+ IntersectEdges(horzEdge, e, Pt);
+ }
+ else
+ {
+ IntPoint Pt = IntPoint(e->Curr.X, horzEdge->Curr.Y);
+ IntersectEdges( e, horzEdge, Pt);
+ }
+ TEdge* eNext = GetNextInAEL(e, dir);
+ SwapPositionsInAEL( horzEdge, e );
+ e = eNext;
+ } //end while(e)
+
+ //Break out of loop if HorzEdge.NextInLML is not also horizontal ...
+ if (!horzEdge->NextInLML || !IsHorizontal(*horzEdge->NextInLML)) break;
+
+ UpdateEdgeIntoAEL(horzEdge);
+ if (horzEdge->OutIdx >= 0) AddOutPt(horzEdge, horzEdge->Bot);
+ GetHorzDirection(*horzEdge, dir, horzLeft, horzRight);
+
+ } //end for (;;)
+
+ if (horzEdge->OutIdx >= 0 && !op1)
+ {
+ op1 = GetLastOutPt(horzEdge);
+ TEdge* eNextHorz = m_SortedEdges;
+ while (eNextHorz)
+ {
+ if (eNextHorz->OutIdx >= 0 &&
+ HorzSegmentsOverlap(horzEdge->Bot.X,
+ horzEdge->Top.X, eNextHorz->Bot.X, eNextHorz->Top.X))
+ {
+ OutPt* op2 = GetLastOutPt(eNextHorz);
+ AddJoin(op2, op1, eNextHorz->Top);
+ }
+ eNextHorz = eNextHorz->NextInSEL;
+ }
+ AddGhostJoin(op1, horzEdge->Top);
+ }
+
+ if (horzEdge->NextInLML)
+ {
+ if(horzEdge->OutIdx >= 0)
+ {
+ op1 = AddOutPt( horzEdge, horzEdge->Top);
+ UpdateEdgeIntoAEL(horzEdge);
+ if (horzEdge->WindDelta == 0) return;
+ //nb: HorzEdge is no longer horizontal here
+ TEdge* ePrev = horzEdge->PrevInAEL;
+ TEdge* eNext = horzEdge->NextInAEL;
+ if (ePrev && ePrev->Curr.X == horzEdge->Bot.X &&
+ ePrev->Curr.Y == horzEdge->Bot.Y && ePrev->WindDelta != 0 &&
+ (ePrev->OutIdx >= 0 && ePrev->Curr.Y > ePrev->Top.Y &&
+ SlopesEqual(*horzEdge, *ePrev, m_UseFullRange)))
+ {
+ OutPt* op2 = AddOutPt(ePrev, horzEdge->Bot);
+ AddJoin(op1, op2, horzEdge->Top);
+ }
+ else if (eNext && eNext->Curr.X == horzEdge->Bot.X &&
+ eNext->Curr.Y == horzEdge->Bot.Y && eNext->WindDelta != 0 &&
+ eNext->OutIdx >= 0 && eNext->Curr.Y > eNext->Top.Y &&
+ SlopesEqual(*horzEdge, *eNext, m_UseFullRange))
+ {
+ OutPt* op2 = AddOutPt(eNext, horzEdge->Bot);
+ AddJoin(op1, op2, horzEdge->Top);
+ }
+ }
+ else
+ UpdateEdgeIntoAEL(horzEdge);
+ }
+ else
+ {
+ if (horzEdge->OutIdx >= 0) AddOutPt(horzEdge, horzEdge->Top);
+ DeleteFromAEL(horzEdge);
+ }
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::ProcessIntersections(const cInt topY)
+{
+ if( !m_ActiveEdges ) return true;
+ try {
+ BuildIntersectList(topY);
+ size_t IlSize = m_IntersectList.size();
+ if (IlSize == 0) return true;
+ if (IlSize == 1 || FixupIntersectionOrder()) ProcessIntersectList();
+ else return false;
+ }
+ catch(...)
+ {
+ m_SortedEdges = 0;
+ DisposeIntersectNodes();
+ throw clipperException("ProcessIntersections error");
+ }
+ m_SortedEdges = 0;
+ return true;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::DisposeIntersectNodes()
+{
+ for (size_t i = 0; i < m_IntersectList.size(); ++i )
+ delete m_IntersectList[i];
+ m_IntersectList.clear();
+}
+//------------------------------------------------------------------------------
+
+void Clipper::BuildIntersectList(const cInt topY)
+{
+ if ( !m_ActiveEdges ) return;
+
+ //prepare for sorting ...
+ TEdge* e = m_ActiveEdges;
+ m_SortedEdges = e;
+ while( e )
+ {
+ e->PrevInSEL = e->PrevInAEL;
+ e->NextInSEL = e->NextInAEL;
+ e->Curr.X = TopX( *e, topY );
+ e = e->NextInAEL;
+ }
+
+ //bubblesort ...
+ bool isModified;
+ do
+ {
+ isModified = false;
+ e = m_SortedEdges;
+ while( e->NextInSEL )
+ {
+ TEdge *eNext = e->NextInSEL;
+ IntPoint Pt;
+ if(e->Curr.X > eNext->Curr.X)
+ {
+ IntersectPoint(*e, *eNext, Pt);
+ if (Pt.Y < topY) Pt = IntPoint(TopX(*e, topY), topY);
+ IntersectNode * newNode = new IntersectNode;
+ newNode->Edge1 = e;
+ newNode->Edge2 = eNext;
+ newNode->Pt = Pt;
+ m_IntersectList.push_back(newNode);
+
+ SwapPositionsInSEL(e, eNext);
+ isModified = true;
+ }
+ else
+ e = eNext;
+ }
+ if( e->PrevInSEL ) e->PrevInSEL->NextInSEL = 0;
+ else break;
+ }
+ while ( isModified );
+ m_SortedEdges = 0; //important
+}
+//------------------------------------------------------------------------------
+
+
+void Clipper::ProcessIntersectList()
+{
+ for (size_t i = 0; i < m_IntersectList.size(); ++i)
+ {
+ IntersectNode* iNode = m_IntersectList[i];
+ {
+ IntersectEdges( iNode->Edge1, iNode->Edge2, iNode->Pt);
+ SwapPositionsInAEL( iNode->Edge1 , iNode->Edge2 );
+ }
+ delete iNode;
+ }
+ m_IntersectList.clear();
+}
+//------------------------------------------------------------------------------
+
+bool IntersectListSort(IntersectNode* node1, IntersectNode* node2)
+{
+ return node2->Pt.Y < node1->Pt.Y;
+}
+//------------------------------------------------------------------------------
+
+inline bool EdgesAdjacent(const IntersectNode &inode)
+{
+ return (inode.Edge1->NextInSEL == inode.Edge2) ||
+ (inode.Edge1->PrevInSEL == inode.Edge2);
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::FixupIntersectionOrder()
+{
+ //pre-condition: intersections are sorted Bottom-most first.
+ //Now it's crucial that intersections are made only between adjacent edges,
+ //so to ensure this the order of intersections may need adjusting ...
+ CopyAELToSEL();
+ std::sort(m_IntersectList.begin(), m_IntersectList.end(), IntersectListSort);
+ size_t cnt = m_IntersectList.size();
+ for (size_t i = 0; i < cnt; ++i)
+ {
+ if (!EdgesAdjacent(*m_IntersectList[i]))
+ {
+ size_t j = i + 1;
+ while (j < cnt && !EdgesAdjacent(*m_IntersectList[j])) j++;
+ if (j == cnt) return false;
+ std::swap(m_IntersectList[i], m_IntersectList[j]);
+ }
+ SwapPositionsInSEL(m_IntersectList[i]->Edge1, m_IntersectList[i]->Edge2);
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::DoMaxima(TEdge *e)
+{
+ TEdge* eMaxPair = GetMaximaPairEx(e);
+ if (!eMaxPair)
+ {
+ if (e->OutIdx >= 0)
+ AddOutPt(e, e->Top);
+ DeleteFromAEL(e);
+ return;
+ }
+
+ TEdge* eNext = e->NextInAEL;
+ while(eNext && eNext != eMaxPair)
+ {
+ IntersectEdges(e, eNext, e->Top);
+ SwapPositionsInAEL(e, eNext);
+ eNext = e->NextInAEL;
+ }
+
+ if(e->OutIdx == Unassigned && eMaxPair->OutIdx == Unassigned)
+ {
+ DeleteFromAEL(e);
+ DeleteFromAEL(eMaxPair);
+ }
+ else if( e->OutIdx >= 0 && eMaxPair->OutIdx >= 0 )
+ {
+ if (e->OutIdx >= 0) AddLocalMaxPoly(e, eMaxPair, e->Top);
+ DeleteFromAEL(e);
+ DeleteFromAEL(eMaxPair);
+ }
+#ifdef use_lines
+ else if (e->WindDelta == 0)
+ {
+ if (e->OutIdx >= 0)
+ {
+ AddOutPt(e, e->Top);
+ e->OutIdx = Unassigned;
+ }
+ DeleteFromAEL(e);
+
+ if (eMaxPair->OutIdx >= 0)
+ {
+ AddOutPt(eMaxPair, e->Top);
+ eMaxPair->OutIdx = Unassigned;
+ }
+ DeleteFromAEL(eMaxPair);
+ }
+#endif
+ else throw clipperException("DoMaxima error");
+}
+//------------------------------------------------------------------------------
+
+void Clipper::ProcessEdgesAtTopOfScanbeam(const cInt topY)
+{
+ TEdge* e = m_ActiveEdges;
+ while( e )
+ {
+ //1. process maxima, treating them as if they're 'bent' horizontal edges,
+ // but exclude maxima with horizontal edges. nb: e can't be a horizontal.
+ bool IsMaximaEdge = IsMaxima(e, topY);
+
+ if(IsMaximaEdge)
+ {
+ TEdge* eMaxPair = GetMaximaPairEx(e);
+ IsMaximaEdge = (!eMaxPair || !IsHorizontal(*eMaxPair));
+ }
+
+ if(IsMaximaEdge)
+ {
+ if (m_StrictSimple) m_Maxima.push_back(e->Top.X);
+ TEdge* ePrev = e->PrevInAEL;
+ DoMaxima(e);
+ if( !ePrev ) e = m_ActiveEdges;
+ else e = ePrev->NextInAEL;
+ }
+ else
+ {
+ //2. promote horizontal edges, otherwise update Curr.X and Curr.Y ...
+ if (IsIntermediate(e, topY) && IsHorizontal(*e->NextInLML))
+ {
+ UpdateEdgeIntoAEL(e);
+ if (e->OutIdx >= 0)
+ AddOutPt(e, e->Bot);
+ AddEdgeToSEL(e);
+ }
+ else
+ {
+ e->Curr.X = TopX( *e, topY );
+ e->Curr.Y = topY;
+#ifdef use_xyz
+ e->Curr.Z = topY == e->Top.Y ? e->Top.Z : (topY == e->Bot.Y ? e->Bot.Z : 0);
+#endif
+ }
+
+ //When StrictlySimple and 'e' is being touched by another edge, then
+ //make sure both edges have a vertex here ...
+ if (m_StrictSimple)
+ {
+ TEdge* ePrev = e->PrevInAEL;
+ if ((e->OutIdx >= 0) && (e->WindDelta != 0) && ePrev && (ePrev->OutIdx >= 0) &&
+ (ePrev->Curr.X == e->Curr.X) && (ePrev->WindDelta != 0))
+ {
+ IntPoint pt = e->Curr;
+#ifdef use_xyz
+ SetZ(pt, *ePrev, *e);
+#endif
+ OutPt* op = AddOutPt(ePrev, pt);
+ OutPt* op2 = AddOutPt(e, pt);
+ AddJoin(op, op2, pt); //StrictlySimple (type-3) join
+ }
+ }
+
+ e = e->NextInAEL;
+ }
+ }
+
+ //3. Process horizontals at the Top of the scanbeam ...
+ m_Maxima.sort();
+ ProcessHorizontals();
+ m_Maxima.clear();
+
+ //4. Promote intermediate vertices ...
+ e = m_ActiveEdges;
+ while(e)
+ {
+ if(IsIntermediate(e, topY))
+ {
+ OutPt* op = 0;
+ if( e->OutIdx >= 0 )
+ op = AddOutPt(e, e->Top);
+ UpdateEdgeIntoAEL(e);
+
+ //if output polygons share an edge, they'll need joining later ...
+ TEdge* ePrev = e->PrevInAEL;
+ TEdge* eNext = e->NextInAEL;
+ if (ePrev && ePrev->Curr.X == e->Bot.X &&
+ ePrev->Curr.Y == e->Bot.Y && op &&
+ ePrev->OutIdx >= 0 && ePrev->Curr.Y > ePrev->Top.Y &&
+ SlopesEqual(e->Curr, e->Top, ePrev->Curr, ePrev->Top, m_UseFullRange) &&
+ (e->WindDelta != 0) && (ePrev->WindDelta != 0))
+ {
+ OutPt* op2 = AddOutPt(ePrev, e->Bot);
+ AddJoin(op, op2, e->Top);
+ }
+ else if (eNext && eNext->Curr.X == e->Bot.X &&
+ eNext->Curr.Y == e->Bot.Y && op &&
+ eNext->OutIdx >= 0 && eNext->Curr.Y > eNext->Top.Y &&
+ SlopesEqual(e->Curr, e->Top, eNext->Curr, eNext->Top, m_UseFullRange) &&
+ (e->WindDelta != 0) && (eNext->WindDelta != 0))
+ {
+ OutPt* op2 = AddOutPt(eNext, e->Bot);
+ AddJoin(op, op2, e->Top);
+ }
+ }
+ e = e->NextInAEL;
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::FixupOutPolyline(OutRec &outrec)
+{
+ OutPt *pp = outrec.Pts;
+ OutPt *lastPP = pp->Prev;
+ while (pp != lastPP)
+ {
+ pp = pp->Next;
+ if (pp->Pt == pp->Prev->Pt)
+ {
+ if (pp == lastPP) lastPP = pp->Prev;
+ OutPt *tmpPP = pp->Prev;
+ tmpPP->Next = pp->Next;
+ pp->Next->Prev = tmpPP;
+ delete pp;
+ pp = tmpPP;
+ }
+ }
+
+ if (pp == pp->Prev)
+ {
+ DisposeOutPts(pp);
+ outrec.Pts = 0;
+ return;
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::FixupOutPolygon(OutRec &outrec)
+{
+ //FixupOutPolygon() - removes duplicate points and simplifies consecutive
+ //parallel edges by removing the middle vertex.
+ OutPt *lastOK = 0;
+ outrec.BottomPt = 0;
+ OutPt *pp = outrec.Pts;
+ bool preserveCol = m_PreserveCollinear || m_StrictSimple;
+
+ for (;;)
+ {
+ if (pp->Prev == pp || pp->Prev == pp->Next)
+ {
+ DisposeOutPts(pp);
+ outrec.Pts = 0;
+ return;
+ }
+
+ //test for duplicate points and collinear edges ...
+ if ((pp->Pt == pp->Next->Pt) || (pp->Pt == pp->Prev->Pt) ||
+ (SlopesEqual(pp->Prev->Pt, pp->Pt, pp->Next->Pt, m_UseFullRange) &&
+ (!preserveCol || !Pt2IsBetweenPt1AndPt3(pp->Prev->Pt, pp->Pt, pp->Next->Pt))))
+ {
+ lastOK = 0;
+ OutPt *tmp = pp;
+ pp->Prev->Next = pp->Next;
+ pp->Next->Prev = pp->Prev;
+ pp = pp->Prev;
+ delete tmp;
+ }
+ else if (pp == lastOK) break;
+ else
+ {
+ if (!lastOK) lastOK = pp;
+ pp = pp->Next;
+ }
+ }
+ outrec.Pts = pp;
+}
+//------------------------------------------------------------------------------
+
+int PointCount(OutPt *Pts)
+{
+ if (!Pts) return 0;
+ int result = 0;
+ OutPt* p = Pts;
+ do
+ {
+ result++;
+ p = p->Next;
+ }
+ while (p != Pts);
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::BuildResult(Paths &polys)
+{
+ polys.reserve(m_PolyOuts.size());
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ if (!m_PolyOuts[i]->Pts) continue;
+ Path pg;
+ OutPt* p = m_PolyOuts[i]->Pts->Prev;
+ int cnt = PointCount(p);
+ if (cnt < 2) continue;
+ pg.reserve(cnt);
+ for (int i = 0; i < cnt; ++i)
+ {
+ pg.push_back(p->Pt);
+ p = p->Prev;
+ }
+ polys.push_back(pg);
+ }
+}
+//------------------------------------------------------------------------------
+
+void Clipper::BuildResult2(PolyTree& polytree)
+{
+ polytree.Clear();
+ polytree.AllNodes.reserve(m_PolyOuts.size());
+ //add each output polygon/contour to polytree ...
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); i++)
+ {
+ OutRec* outRec = m_PolyOuts[i];
+ int cnt = PointCount(outRec->Pts);
+ if ((outRec->IsOpen && cnt < 2) || (!outRec->IsOpen && cnt < 3)) continue;
+ FixHoleLinkage(*outRec);
+ PolyNode* pn = new PolyNode();
+ //nb: polytree takes ownership of all the PolyNodes
+ polytree.AllNodes.push_back(pn);
+ outRec->PolyNd = pn;
+ pn->Parent = 0;
+ pn->Index = 0;
+ pn->Contour.reserve(cnt);
+ OutPt *op = outRec->Pts->Prev;
+ for (int j = 0; j < cnt; j++)
+ {
+ pn->Contour.push_back(op->Pt);
+ op = op->Prev;
+ }
+ }
+
+ //fixup PolyNode links etc ...
+ polytree.Childs.reserve(m_PolyOuts.size());
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); i++)
+ {
+ OutRec* outRec = m_PolyOuts[i];
+ if (!outRec->PolyNd) continue;
+ if (outRec->IsOpen)
+ {
+ outRec->PolyNd->m_IsOpen = true;
+ polytree.AddChild(*outRec->PolyNd);
+ }
+ else if (outRec->FirstLeft && outRec->FirstLeft->PolyNd)
+ outRec->FirstLeft->PolyNd->AddChild(*outRec->PolyNd);
+ else
+ polytree.AddChild(*outRec->PolyNd);
+ }
+}
+//------------------------------------------------------------------------------
+
+void SwapIntersectNodes(IntersectNode &int1, IntersectNode &int2)
+{
+ //just swap the contents (because fIntersectNodes is a single-linked-list)
+ IntersectNode inode = int1; //gets a copy of Int1
+ int1.Edge1 = int2.Edge1;
+ int1.Edge2 = int2.Edge2;
+ int1.Pt = int2.Pt;
+ int2.Edge1 = inode.Edge1;
+ int2.Edge2 = inode.Edge2;
+ int2.Pt = inode.Pt;
+}
+//------------------------------------------------------------------------------
+
+inline bool E2InsertsBeforeE1(TEdge &e1, TEdge &e2)
+{
+ if (e2.Curr.X == e1.Curr.X)
+ {
+ if (e2.Top.Y > e1.Top.Y)
+ return e2.Top.X < TopX(e1, e2.Top.Y);
+ else return e1.Top.X > TopX(e2, e1.Top.Y);
+ }
+ else return e2.Curr.X < e1.Curr.X;
+}
+//------------------------------------------------------------------------------
+
+bool GetOverlap(const cInt a1, const cInt a2, const cInt b1, const cInt b2,
+ cInt& Left, cInt& Right)
+{
+ if (a1 < a2)
+ {
+ if (b1 < b2) {Left = std::max(a1,b1); Right = std::min(a2,b2);}
+ else {Left = std::max(a1,b2); Right = std::min(a2,b1);}
+ }
+ else
+ {
+ if (b1 < b2) {Left = std::max(a2,b1); Right = std::min(a1,b2);}
+ else {Left = std::max(a2,b2); Right = std::min(a1,b1);}
+ }
+ return Left < Right;
+}
+//------------------------------------------------------------------------------
+
+inline void UpdateOutPtIdxs(OutRec& outrec)
+{
+ OutPt* op = outrec.Pts;
+ do
+ {
+ op->Idx = outrec.Idx;
+ op = op->Prev;
+ }
+ while(op != outrec.Pts);
+}
+//------------------------------------------------------------------------------
+
+void Clipper::InsertEdgeIntoAEL(TEdge *edge, TEdge* startEdge)
+{
+ if(!m_ActiveEdges)
+ {
+ edge->PrevInAEL = 0;
+ edge->NextInAEL = 0;
+ m_ActiveEdges = edge;
+ }
+ else if(!startEdge && E2InsertsBeforeE1(*m_ActiveEdges, *edge))
+ {
+ edge->PrevInAEL = 0;
+ edge->NextInAEL = m_ActiveEdges;
+ m_ActiveEdges->PrevInAEL = edge;
+ m_ActiveEdges = edge;
+ }
+ else
+ {
+ if(!startEdge) startEdge = m_ActiveEdges;
+ while(startEdge->NextInAEL &&
+ !E2InsertsBeforeE1(*startEdge->NextInAEL , *edge))
+ startEdge = startEdge->NextInAEL;
+ edge->NextInAEL = startEdge->NextInAEL;
+ if(startEdge->NextInAEL) startEdge->NextInAEL->PrevInAEL = edge;
+ edge->PrevInAEL = startEdge;
+ startEdge->NextInAEL = edge;
+ }
+}
+//----------------------------------------------------------------------
+
+OutPt* DupOutPt(OutPt* outPt, bool InsertAfter)
+{
+ OutPt* result = new OutPt;
+ result->Pt = outPt->Pt;
+ result->Idx = outPt->Idx;
+ if (InsertAfter)
+ {
+ result->Next = outPt->Next;
+ result->Prev = outPt;
+ outPt->Next->Prev = result;
+ outPt->Next = result;
+ }
+ else
+ {
+ result->Prev = outPt->Prev;
+ result->Next = outPt;
+ outPt->Prev->Next = result;
+ outPt->Prev = result;
+ }
+ return result;
+}
+//------------------------------------------------------------------------------
+
+bool JoinHorz(OutPt* op1, OutPt* op1b, OutPt* op2, OutPt* op2b,
+ const IntPoint Pt, bool DiscardLeft)
+{
+ Direction Dir1 = (op1->Pt.X > op1b->Pt.X ? dRightToLeft : dLeftToRight);
+ Direction Dir2 = (op2->Pt.X > op2b->Pt.X ? dRightToLeft : dLeftToRight);
+ if (Dir1 == Dir2) return false;
+
+ //When DiscardLeft, we want Op1b to be on the Left of Op1, otherwise we
+ //want Op1b to be on the Right. (And likewise with Op2 and Op2b.)
+ //So, to facilitate this while inserting Op1b and Op2b ...
+ //when DiscardLeft, make sure we're AT or RIGHT of Pt before adding Op1b,
+ //otherwise make sure we're AT or LEFT of Pt. (Likewise with Op2b.)
+ if (Dir1 == dLeftToRight)
+ {
+ while (op1->Next->Pt.X <= Pt.X &&
+ op1->Next->Pt.X >= op1->Pt.X && op1->Next->Pt.Y == Pt.Y)
+ op1 = op1->Next;
+ if (DiscardLeft && (op1->Pt.X != Pt.X)) op1 = op1->Next;
+ op1b = DupOutPt(op1, !DiscardLeft);
+ if (op1b->Pt != Pt)
+ {
+ op1 = op1b;
+ op1->Pt = Pt;
+ op1b = DupOutPt(op1, !DiscardLeft);
+ }
+ }
+ else
+ {
+ while (op1->Next->Pt.X >= Pt.X &&
+ op1->Next->Pt.X <= op1->Pt.X && op1->Next->Pt.Y == Pt.Y)
+ op1 = op1->Next;
+ if (!DiscardLeft && (op1->Pt.X != Pt.X)) op1 = op1->Next;
+ op1b = DupOutPt(op1, DiscardLeft);
+ if (op1b->Pt != Pt)
+ {
+ op1 = op1b;
+ op1->Pt = Pt;
+ op1b = DupOutPt(op1, DiscardLeft);
+ }
+ }
+
+ if (Dir2 == dLeftToRight)
+ {
+ while (op2->Next->Pt.X <= Pt.X &&
+ op2->Next->Pt.X >= op2->Pt.X && op2->Next->Pt.Y == Pt.Y)
+ op2 = op2->Next;
+ if (DiscardLeft && (op2->Pt.X != Pt.X)) op2 = op2->Next;
+ op2b = DupOutPt(op2, !DiscardLeft);
+ if (op2b->Pt != Pt)
+ {
+ op2 = op2b;
+ op2->Pt = Pt;
+ op2b = DupOutPt(op2, !DiscardLeft);
+ };
+ } else
+ {
+ while (op2->Next->Pt.X >= Pt.X &&
+ op2->Next->Pt.X <= op2->Pt.X && op2->Next->Pt.Y == Pt.Y)
+ op2 = op2->Next;
+ if (!DiscardLeft && (op2->Pt.X != Pt.X)) op2 = op2->Next;
+ op2b = DupOutPt(op2, DiscardLeft);
+ if (op2b->Pt != Pt)
+ {
+ op2 = op2b;
+ op2->Pt = Pt;
+ op2b = DupOutPt(op2, DiscardLeft);
+ };
+ };
+
+ if ((Dir1 == dLeftToRight) == DiscardLeft)
+ {
+ op1->Prev = op2;
+ op2->Next = op1;
+ op1b->Next = op2b;
+ op2b->Prev = op1b;
+ }
+ else
+ {
+ op1->Next = op2;
+ op2->Prev = op1;
+ op1b->Prev = op2b;
+ op2b->Next = op1b;
+ }
+ return true;
+}
+//------------------------------------------------------------------------------
+
+bool Clipper::JoinPoints(Join *j, OutRec* outRec1, OutRec* outRec2)
+{
+ OutPt *op1 = j->OutPt1, *op1b;
+ OutPt *op2 = j->OutPt2, *op2b;
+
+ //There are 3 kinds of joins for output polygons ...
+ //1. Horizontal joins where Join.OutPt1 & Join.OutPt2 are vertices anywhere
+ //along (horizontal) collinear edges (& Join.OffPt is on the same horizontal).
+ //2. Non-horizontal joins where Join.OutPt1 & Join.OutPt2 are at the same
+ //location at the Bottom of the overlapping segment (& Join.OffPt is above).
+ //3. StrictSimple joins where edges touch but are not collinear and where
+ //Join.OutPt1, Join.OutPt2 & Join.OffPt all share the same point.
+ bool isHorizontal = (j->OutPt1->Pt.Y == j->OffPt.Y);
+
+ if (isHorizontal && (j->OffPt == j->OutPt1->Pt) &&
+ (j->OffPt == j->OutPt2->Pt))
+ {
+ //Strictly Simple join ...
+ if (outRec1 != outRec2) return false;
+ op1b = j->OutPt1->Next;
+ while (op1b != op1 && (op1b->Pt == j->OffPt))
+ op1b = op1b->Next;
+ bool reverse1 = (op1b->Pt.Y > j->OffPt.Y);
+ op2b = j->OutPt2->Next;
+ while (op2b != op2 && (op2b->Pt == j->OffPt))
+ op2b = op2b->Next;
+ bool reverse2 = (op2b->Pt.Y > j->OffPt.Y);
+ if (reverse1 == reverse2) return false;
+ if (reverse1)
+ {
+ op1b = DupOutPt(op1, false);
+ op2b = DupOutPt(op2, true);
+ op1->Prev = op2;
+ op2->Next = op1;
+ op1b->Next = op2b;
+ op2b->Prev = op1b;
+ j->OutPt1 = op1;
+ j->OutPt2 = op1b;
+ return true;
+ } else
+ {
+ op1b = DupOutPt(op1, true);
+ op2b = DupOutPt(op2, false);
+ op1->Next = op2;
+ op2->Prev = op1;
+ op1b->Prev = op2b;
+ op2b->Next = op1b;
+ j->OutPt1 = op1;
+ j->OutPt2 = op1b;
+ return true;
+ }
+ }
+ else if (isHorizontal)
+ {
+ //treat horizontal joins differently to non-horizontal joins since with
+ //them we're not yet sure where the overlapping is. OutPt1.Pt & OutPt2.Pt
+ //may be anywhere along the horizontal edge.
+ op1b = op1;
+ while (op1->Prev->Pt.Y == op1->Pt.Y && op1->Prev != op1b && op1->Prev != op2)
+ op1 = op1->Prev;
+ while (op1b->Next->Pt.Y == op1b->Pt.Y && op1b->Next != op1 && op1b->Next != op2)
+ op1b = op1b->Next;
+ if (op1b->Next == op1 || op1b->Next == op2) return false; //a flat 'polygon'
+
+ op2b = op2;
+ while (op2->Prev->Pt.Y == op2->Pt.Y && op2->Prev != op2b && op2->Prev != op1b)
+ op2 = op2->Prev;
+ while (op2b->Next->Pt.Y == op2b->Pt.Y && op2b->Next != op2 && op2b->Next != op1)
+ op2b = op2b->Next;
+ if (op2b->Next == op2 || op2b->Next == op1) return false; //a flat 'polygon'
+
+ cInt Left, Right;
+ //Op1 --> Op1b & Op2 --> Op2b are the extremites of the horizontal edges
+ if (!GetOverlap(op1->Pt.X, op1b->Pt.X, op2->Pt.X, op2b->Pt.X, Left, Right))
+ return false;
+
+ //DiscardLeftSide: when overlapping edges are joined, a spike will created
+ //which needs to be cleaned up. However, we don't want Op1 or Op2 caught up
+ //on the discard Side as either may still be needed for other joins ...
+ IntPoint Pt;
+ bool DiscardLeftSide;
+ if (op1->Pt.X >= Left && op1->Pt.X <= Right)
+ {
+ Pt = op1->Pt; DiscardLeftSide = (op1->Pt.X > op1b->Pt.X);
+ }
+ else if (op2->Pt.X >= Left&& op2->Pt.X <= Right)
+ {
+ Pt = op2->Pt; DiscardLeftSide = (op2->Pt.X > op2b->Pt.X);
+ }
+ else if (op1b->Pt.X >= Left && op1b->Pt.X <= Right)
+ {
+ Pt = op1b->Pt; DiscardLeftSide = op1b->Pt.X > op1->Pt.X;
+ }
+ else
+ {
+ Pt = op2b->Pt; DiscardLeftSide = (op2b->Pt.X > op2->Pt.X);
+ }
+ j->OutPt1 = op1; j->OutPt2 = op2;
+ return JoinHorz(op1, op1b, op2, op2b, Pt, DiscardLeftSide);
+ } else
+ {
+ //nb: For non-horizontal joins ...
+ // 1. Jr.OutPt1.Pt.Y == Jr.OutPt2.Pt.Y
+ // 2. Jr.OutPt1.Pt > Jr.OffPt.Y
+
+ //make sure the polygons are correctly oriented ...
+ op1b = op1->Next;
+ while ((op1b->Pt == op1->Pt) && (op1b != op1)) op1b = op1b->Next;
+ bool Reverse1 = ((op1b->Pt.Y > op1->Pt.Y) ||
+ !SlopesEqual(op1->Pt, op1b->Pt, j->OffPt, m_UseFullRange));
+ if (Reverse1)
+ {
+ op1b = op1->Prev;
+ while ((op1b->Pt == op1->Pt) && (op1b != op1)) op1b = op1b->Prev;
+ if ((op1b->Pt.Y > op1->Pt.Y) ||
+ !SlopesEqual(op1->Pt, op1b->Pt, j->OffPt, m_UseFullRange)) return false;
+ };
+ op2b = op2->Next;
+ while ((op2b->Pt == op2->Pt) && (op2b != op2))op2b = op2b->Next;
+ bool Reverse2 = ((op2b->Pt.Y > op2->Pt.Y) ||
+ !SlopesEqual(op2->Pt, op2b->Pt, j->OffPt, m_UseFullRange));
+ if (Reverse2)
+ {
+ op2b = op2->Prev;
+ while ((op2b->Pt == op2->Pt) && (op2b != op2)) op2b = op2b->Prev;
+ if ((op2b->Pt.Y > op2->Pt.Y) ||
+ !SlopesEqual(op2->Pt, op2b->Pt, j->OffPt, m_UseFullRange)) return false;
+ }
+
+ if ((op1b == op1) || (op2b == op2) || (op1b == op2b) ||
+ ((outRec1 == outRec2) && (Reverse1 == Reverse2))) return false;
+
+ if (Reverse1)
+ {
+ op1b = DupOutPt(op1, false);
+ op2b = DupOutPt(op2, true);
+ op1->Prev = op2;
+ op2->Next = op1;
+ op1b->Next = op2b;
+ op2b->Prev = op1b;
+ j->OutPt1 = op1;
+ j->OutPt2 = op1b;
+ return true;
+ } else
+ {
+ op1b = DupOutPt(op1, true);
+ op2b = DupOutPt(op2, false);
+ op1->Next = op2;
+ op2->Prev = op1;
+ op1b->Prev = op2b;
+ op2b->Next = op1b;
+ j->OutPt1 = op1;
+ j->OutPt2 = op1b;
+ return true;
+ }
+ }
+}
+//----------------------------------------------------------------------
+
+static OutRec* ParseFirstLeft(OutRec* FirstLeft)
+{
+ while (FirstLeft && !FirstLeft->Pts)
+ FirstLeft = FirstLeft->FirstLeft;
+ return FirstLeft;
+}
+//------------------------------------------------------------------------------
+
+void Clipper::FixupFirstLefts1(OutRec* OldOutRec, OutRec* NewOutRec)
+{
+ //tests if NewOutRec contains the polygon before reassigning FirstLeft
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ OutRec* outRec = m_PolyOuts[i];
+ OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft);
+ if (outRec->Pts && firstLeft == OldOutRec)
+ {
+ if (Poly2ContainsPoly1(outRec->Pts, NewOutRec->Pts))
+ outRec->FirstLeft = NewOutRec;
+ }
+ }
+}
+//----------------------------------------------------------------------
+
+void Clipper::FixupFirstLefts2(OutRec* InnerOutRec, OutRec* OuterOutRec)
+{
+ //A polygon has split into two such that one is now the inner of the other.
+ //It's possible that these polygons now wrap around other polygons, so check
+ //every polygon that's also contained by OuterOutRec's FirstLeft container
+ //(including 0) to see if they've become inner to the new inner polygon ...
+ OutRec* orfl = OuterOutRec->FirstLeft;
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ OutRec* outRec = m_PolyOuts[i];
+
+ if (!outRec->Pts || outRec == OuterOutRec || outRec == InnerOutRec)
+ continue;
+ OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft);
+ if (firstLeft != orfl && firstLeft != InnerOutRec && firstLeft != OuterOutRec)
+ continue;
+ if (Poly2ContainsPoly1(outRec->Pts, InnerOutRec->Pts))
+ outRec->FirstLeft = InnerOutRec;
+ else if (Poly2ContainsPoly1(outRec->Pts, OuterOutRec->Pts))
+ outRec->FirstLeft = OuterOutRec;
+ else if (outRec->FirstLeft == InnerOutRec || outRec->FirstLeft == OuterOutRec)
+ outRec->FirstLeft = orfl;
+ }
+}
+//----------------------------------------------------------------------
+void Clipper::FixupFirstLefts3(OutRec* OldOutRec, OutRec* NewOutRec)
+{
+ //reassigns FirstLeft WITHOUT testing if NewOutRec contains the polygon
+ for (PolyOutList::size_type i = 0; i < m_PolyOuts.size(); ++i)
+ {
+ OutRec* outRec = m_PolyOuts[i];
+ OutRec* firstLeft = ParseFirstLeft(outRec->FirstLeft);
+ if (outRec->Pts && firstLeft == OldOutRec)
+ outRec->FirstLeft = NewOutRec;
+ }
+}
+//----------------------------------------------------------------------
+
+void Clipper::JoinCommonEdges()
+{
+ for (JoinList::size_type i = 0; i < m_Joins.size(); i++)
+ {
+ Join* join = m_Joins[i];
+
+ OutRec *outRec1 = GetOutRec(join->OutPt1->Idx);
+ OutRec *outRec2 = GetOutRec(join->OutPt2->Idx);
+
+ if (!outRec1->Pts || !outRec2->Pts) continue;
+ if (outRec1->IsOpen || outRec2->IsOpen) continue;
+
+ //get the polygon fragment with the correct hole state (FirstLeft)
+ //before calling JoinPoints() ...
+ OutRec *holeStateRec;
+ if (outRec1 == outRec2) holeStateRec = outRec1;
+ else if (OutRec1RightOfOutRec2(outRec1, outRec2)) holeStateRec = outRec2;
+ else if (OutRec1RightOfOutRec2(outRec2, outRec1)) holeStateRec = outRec1;
+ else holeStateRec = GetLowermostRec(outRec1, outRec2);
+
+ if (!JoinPoints(join, outRec1, outRec2)) continue;
+
+ if (outRec1 == outRec2)
+ {
+ //instead of joining two polygons, we've just created a new one by
+ //splitting one polygon into two.
+ outRec1->Pts = join->OutPt1;
+ outRec1->BottomPt = 0;
+ outRec2 = CreateOutRec();
+ outRec2->Pts = join->OutPt2;
+
+ //update all OutRec2.Pts Idx's ...
+ UpdateOutPtIdxs(*outRec2);
+
+ if (Poly2ContainsPoly1(outRec2->Pts, outRec1->Pts))
+ {
+ //outRec1 contains outRec2 ...
+ outRec2->IsHole = !outRec1->IsHole;
+ outRec2->FirstLeft = outRec1;
+
+ if (m_UsingPolyTree) FixupFirstLefts2(outRec2, outRec1);
+
+ if ((outRec2->IsHole ^ m_ReverseOutput) == (Area(*outRec2) > 0))
+ ReversePolyPtLinks(outRec2->Pts);
+
+ } else if (Poly2ContainsPoly1(outRec1->Pts, outRec2->Pts))
+ {
+ //outRec2 contains outRec1 ...
+ outRec2->IsHole = outRec1->IsHole;
+ outRec1->IsHole = !outRec2->IsHole;
+ outRec2->FirstLeft = outRec1->FirstLeft;
+ outRec1->FirstLeft = outRec2;
+
+ if (m_UsingPolyTree) FixupFirstLefts2(outRec1, outRec2);
+
+ if ((outRec1->IsHole ^ m_ReverseOutput) == (Area(*outRec1) > 0))
+ ReversePolyPtLinks(outRec1->Pts);
+ }
+ else
+ {
+ //the 2 polygons are completely separate ...
+ outRec2->IsHole = outRec1->IsHole;
+ outRec2->FirstLeft = outRec1->FirstLeft;
+
+ //fixup FirstLeft pointers that may need reassigning to OutRec2
+ if (m_UsingPolyTree) FixupFirstLefts1(outRec1, outRec2);
+ }
+
+ } else
+ {
+ //joined 2 polygons together ...
+
+ outRec2->Pts = 0;
+ outRec2->BottomPt = 0;
+ outRec2->Idx = outRec1->Idx;
+
+ outRec1->IsHole = holeStateRec->IsHole;
+ if (holeStateRec == outRec2)
+ outRec1->FirstLeft = outRec2->FirstLeft;
+ outRec2->FirstLeft = outRec1;
+
+ if (m_UsingPolyTree) FixupFirstLefts3(outRec2, outRec1);
+ }
+ }
+}
+
+//------------------------------------------------------------------------------
+// ClipperOffset support functions ...
+//------------------------------------------------------------------------------
+
+DoublePoint GetUnitNormal(const IntPoint &pt1, const IntPoint &pt2)
+{
+ if(pt2.X == pt1.X && pt2.Y == pt1.Y)
+ return DoublePoint(0, 0);
+
+ double Dx = (double)(pt2.X - pt1.X);
+ double dy = (double)(pt2.Y - pt1.Y);
+ double f = 1 *1.0/ std::sqrt( Dx*Dx + dy*dy );
+ Dx *= f;
+ dy *= f;
+ return DoublePoint(dy, -Dx);
+}
+
+//------------------------------------------------------------------------------
+// ClipperOffset class
+//------------------------------------------------------------------------------
+
+ClipperOffset::ClipperOffset(double miterLimit, double arcTolerance)
+{
+ this->MiterLimit = miterLimit;
+ this->ArcTolerance = arcTolerance;
+ m_lowest.X = -1;
+}
+//------------------------------------------------------------------------------
+
+ClipperOffset::~ClipperOffset()
+{
+ Clear();
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::Clear()
+{
+ for (int i = 0; i < m_polyNodes.ChildCount(); ++i)
+ delete m_polyNodes.Childs[i];
+ m_polyNodes.Childs.clear();
+ m_lowest.X = -1;
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::AddPath(const Path& path, JoinType joinType, EndType endType)
+{
+ int highI = (int)path.size() - 1;
+ if (highI < 0) return;
+ PolyNode* newNode = new PolyNode();
+ newNode->m_jointype = joinType;
+ newNode->m_endtype = endType;
+
+ //strip duplicate points from path and also get index to the lowest point ...
+ if (endType == etClosedLine || endType == etClosedPolygon)
+ while (highI > 0 && path[0] == path[highI]) highI--;
+ newNode->Contour.reserve(highI + 1);
+ newNode->Contour.push_back(path[0]);
+ int j = 0, k = 0;
+ for (int i = 1; i <= highI; i++)
+ if (newNode->Contour[j] != path[i])
+ {
+ j++;
+ newNode->Contour.push_back(path[i]);
+ if (path[i].Y > newNode->Contour[k].Y ||
+ (path[i].Y == newNode->Contour[k].Y &&
+ path[i].X < newNode->Contour[k].X)) k = j;
+ }
+ if (endType == etClosedPolygon && j < 2)
+ {
+ delete newNode;
+ return;
+ }
+ m_polyNodes.AddChild(*newNode);
+
+ //if this path's lowest pt is lower than all the others then update m_lowest
+ if (endType != etClosedPolygon) return;
+ if (m_lowest.X < 0)
+ m_lowest = IntPoint(m_polyNodes.ChildCount() - 1, k);
+ else
+ {
+ IntPoint ip = m_polyNodes.Childs[(int)m_lowest.X]->Contour[(int)m_lowest.Y];
+ if (newNode->Contour[k].Y > ip.Y ||
+ (newNode->Contour[k].Y == ip.Y &&
+ newNode->Contour[k].X < ip.X))
+ m_lowest = IntPoint(m_polyNodes.ChildCount() - 1, k);
+ }
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::AddPaths(const Paths& paths, JoinType joinType, EndType endType)
+{
+ for (Paths::size_type i = 0; i < paths.size(); ++i)
+ AddPath(paths[i], joinType, endType);
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::FixOrientations()
+{
+ //fixup orientations of all closed paths if the orientation of the
+ //closed path with the lowermost vertex is wrong ...
+ if (m_lowest.X >= 0 &&
+ !Orientation(m_polyNodes.Childs[(int)m_lowest.X]->Contour))
+ {
+ for (int i = 0; i < m_polyNodes.ChildCount(); ++i)
+ {
+ PolyNode& node = *m_polyNodes.Childs[i];
+ if (node.m_endtype == etClosedPolygon ||
+ (node.m_endtype == etClosedLine && Orientation(node.Contour)))
+ ReversePath(node.Contour);
+ }
+ } else
+ {
+ for (int i = 0; i < m_polyNodes.ChildCount(); ++i)
+ {
+ PolyNode& node = *m_polyNodes.Childs[i];
+ if (node.m_endtype == etClosedLine && !Orientation(node.Contour))
+ ReversePath(node.Contour);
+ }
+ }
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::Execute(Paths& solution, double delta)
+{
+ solution.clear();
+ FixOrientations();
+ DoOffset(delta);
+
+ //now clean up 'corners' ...
+ Clipper clpr;
+ clpr.AddPaths(m_destPolys, ptSubject, true);
+ if (delta > 0)
+ {
+ clpr.Execute(ctUnion, solution, pftPositive, pftPositive);
+ }
+ else
+ {
+ IntRect r = clpr.GetBounds();
+ Path outer(4);
+ outer[0] = IntPoint(r.left - 10, r.bottom + 10);
+ outer[1] = IntPoint(r.right + 10, r.bottom + 10);
+ outer[2] = IntPoint(r.right + 10, r.top - 10);
+ outer[3] = IntPoint(r.left - 10, r.top - 10);
+
+ clpr.AddPath(outer, ptSubject, true);
+ clpr.ReverseSolution(true);
+ clpr.Execute(ctUnion, solution, pftNegative, pftNegative);
+ if (solution.size() > 0) solution.erase(solution.begin());
+ }
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::Execute(PolyTree& solution, double delta)
+{
+ solution.Clear();
+ FixOrientations();
+ DoOffset(delta);
+
+ //now clean up 'corners' ...
+ Clipper clpr;
+ clpr.AddPaths(m_destPolys, ptSubject, true);
+ if (delta > 0)
+ {
+ clpr.Execute(ctUnion, solution, pftPositive, pftPositive);
+ }
+ else
+ {
+ IntRect r = clpr.GetBounds();
+ Path outer(4);
+ outer[0] = IntPoint(r.left - 10, r.bottom + 10);
+ outer[1] = IntPoint(r.right + 10, r.bottom + 10);
+ outer[2] = IntPoint(r.right + 10, r.top - 10);
+ outer[3] = IntPoint(r.left - 10, r.top - 10);
+
+ clpr.AddPath(outer, ptSubject, true);
+ clpr.ReverseSolution(true);
+ clpr.Execute(ctUnion, solution, pftNegative, pftNegative);
+ //remove the outer PolyNode rectangle ...
+ if (solution.ChildCount() == 1 && solution.Childs[0]->ChildCount() > 0)
+ {
+ PolyNode* outerNode = solution.Childs[0];
+ solution.Childs.reserve(outerNode->ChildCount());
+ solution.Childs[0] = outerNode->Childs[0];
+ solution.Childs[0]->Parent = outerNode->Parent;
+ for (int i = 1; i < outerNode->ChildCount(); ++i)
+ solution.AddChild(*outerNode->Childs[i]);
+ }
+ else
+ solution.Clear();
+ }
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::DoOffset(double delta)
+{
+ m_destPolys.clear();
+ m_delta = delta;
+
+ //if Zero offset, just copy any CLOSED polygons to m_p and return ...
+ if (NEAR_ZERO(delta))
+ {
+ m_destPolys.reserve(m_polyNodes.ChildCount());
+ for (int i = 0; i < m_polyNodes.ChildCount(); i++)
+ {
+ PolyNode& node = *m_polyNodes.Childs[i];
+ if (node.m_endtype == etClosedPolygon)
+ m_destPolys.push_back(node.Contour);
+ }
+ return;
+ }
+
+ //see offset_triginometry3.svg in the documentation folder ...
+ if (MiterLimit > 2) m_miterLim = 2/(MiterLimit * MiterLimit);
+ else m_miterLim = 0.5;
+
+ double y;
+ if (ArcTolerance <= 0.0) y = def_arc_tolerance;
+ else if (ArcTolerance > std::fabs(delta) * def_arc_tolerance)
+ y = std::fabs(delta) * def_arc_tolerance;
+ else y = ArcTolerance;
+ //see offset_triginometry2.svg in the documentation folder ...
+ double steps = pi / std::acos(1 - y / std::fabs(delta));
+ if (steps > std::fabs(delta) * pi)
+ steps = std::fabs(delta) * pi; //ie excessive precision check
+ m_sin = std::sin(two_pi / steps);
+ m_cos = std::cos(two_pi / steps);
+ m_StepsPerRad = steps / two_pi;
+ if (delta < 0.0) m_sin = -m_sin;
+
+ m_destPolys.reserve(m_polyNodes.ChildCount() * 2);
+ for (int i = 0; i < m_polyNodes.ChildCount(); i++)
+ {
+ PolyNode& node = *m_polyNodes.Childs[i];
+ m_srcPoly = node.Contour;
+
+ int len = (int)m_srcPoly.size();
+ if (len == 0 || (delta <= 0 && (len < 3 || node.m_endtype != etClosedPolygon)))
+ continue;
+
+ m_destPoly.clear();
+ if (len == 1)
+ {
+ if (node.m_jointype == jtRound)
+ {
+ double X = 1.0, Y = 0.0;
+ for (cInt j = 1; j <= steps; j++)
+ {
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[0].X + X * delta),
+ Round(m_srcPoly[0].Y + Y * delta)));
+ double X2 = X;
+ X = X * m_cos - m_sin * Y;
+ Y = X2 * m_sin + Y * m_cos;
+ }
+ }
+ else
+ {
+ double X = -1.0, Y = -1.0;
+ for (int j = 0; j < 4; ++j)
+ {
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[0].X + X * delta),
+ Round(m_srcPoly[0].Y + Y * delta)));
+ if (X < 0) X = 1;
+ else if (Y < 0) Y = 1;
+ else X = -1;
+ }
+ }
+ m_destPolys.push_back(m_destPoly);
+ continue;
+ }
+ //build m_normals ...
+ m_normals.clear();
+ m_normals.reserve(len);
+ for (int j = 0; j < len - 1; ++j)
+ m_normals.push_back(GetUnitNormal(m_srcPoly[j], m_srcPoly[j + 1]));
+ if (node.m_endtype == etClosedLine || node.m_endtype == etClosedPolygon)
+ m_normals.push_back(GetUnitNormal(m_srcPoly[len - 1], m_srcPoly[0]));
+ else
+ m_normals.push_back(DoublePoint(m_normals[len - 2]));
+
+ if (node.m_endtype == etClosedPolygon)
+ {
+ int k = len - 1;
+ for (int j = 0; j < len; ++j)
+ OffsetPoint(j, k, node.m_jointype);
+ m_destPolys.push_back(m_destPoly);
+ }
+ else if (node.m_endtype == etClosedLine)
+ {
+ int k = len - 1;
+ for (int j = 0; j < len; ++j)
+ OffsetPoint(j, k, node.m_jointype);
+ m_destPolys.push_back(m_destPoly);
+ m_destPoly.clear();
+ //re-build m_normals ...
+ DoublePoint n = m_normals[len -1];
+ for (int j = len - 1; j > 0; j--)
+ m_normals[j] = DoublePoint(-m_normals[j - 1].X, -m_normals[j - 1].Y);
+ m_normals[0] = DoublePoint(-n.X, -n.Y);
+ k = 0;
+ for (int j = len - 1; j >= 0; j--)
+ OffsetPoint(j, k, node.m_jointype);
+ m_destPolys.push_back(m_destPoly);
+ }
+ else
+ {
+ int k = 0;
+ for (int j = 1; j < len - 1; ++j)
+ OffsetPoint(j, k, node.m_jointype);
+
+ IntPoint pt1;
+ if (node.m_endtype == etOpenButt)
+ {
+ int j = len - 1;
+ pt1 = IntPoint((cInt)Round(m_srcPoly[j].X + m_normals[j].X *
+ delta), (cInt)Round(m_srcPoly[j].Y + m_normals[j].Y * delta));
+ m_destPoly.push_back(pt1);
+ pt1 = IntPoint((cInt)Round(m_srcPoly[j].X - m_normals[j].X *
+ delta), (cInt)Round(m_srcPoly[j].Y - m_normals[j].Y * delta));
+ m_destPoly.push_back(pt1);
+ }
+ else
+ {
+ int j = len - 1;
+ k = len - 2;
+ m_sinA = 0;
+ m_normals[j] = DoublePoint(-m_normals[j].X, -m_normals[j].Y);
+ if (node.m_endtype == etOpenSquare)
+ DoSquare(j, k);
+ else
+ DoRound(j, k);
+ }
+
+ //re-build m_normals ...
+ for (int j = len - 1; j > 0; j--)
+ m_normals[j] = DoublePoint(-m_normals[j - 1].X, -m_normals[j - 1].Y);
+ m_normals[0] = DoublePoint(-m_normals[1].X, -m_normals[1].Y);
+
+ k = len - 1;
+ for (int j = k - 1; j > 0; --j) OffsetPoint(j, k, node.m_jointype);
+
+ if (node.m_endtype == etOpenButt)
+ {
+ pt1 = IntPoint((cInt)Round(m_srcPoly[0].X - m_normals[0].X * delta),
+ (cInt)Round(m_srcPoly[0].Y - m_normals[0].Y * delta));
+ m_destPoly.push_back(pt1);
+ pt1 = IntPoint((cInt)Round(m_srcPoly[0].X + m_normals[0].X * delta),
+ (cInt)Round(m_srcPoly[0].Y + m_normals[0].Y * delta));
+ m_destPoly.push_back(pt1);
+ }
+ else
+ {
+ k = 1;
+ m_sinA = 0;
+ if (node.m_endtype == etOpenSquare)
+ DoSquare(0, 1);
+ else
+ DoRound(0, 1);
+ }
+ m_destPolys.push_back(m_destPoly);
+ }
+ }
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::OffsetPoint(int j, int& k, JoinType jointype)
+{
+ //cross product ...
+ m_sinA = (m_normals[k].X * m_normals[j].Y - m_normals[j].X * m_normals[k].Y);
+ if (std::fabs(m_sinA * m_delta) < 1.0)
+ {
+ //dot product ...
+ double cosA = (m_normals[k].X * m_normals[j].X + m_normals[j].Y * m_normals[k].Y );
+ if (cosA > 0) // angle => 0 degrees
+ {
+ m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[k].X * m_delta),
+ Round(m_srcPoly[j].Y + m_normals[k].Y * m_delta)));
+ return;
+ }
+ //else angle => 180 degrees
+ }
+ else if (m_sinA > 1.0) m_sinA = 1.0;
+ else if (m_sinA < -1.0) m_sinA = -1.0;
+
+ if (m_sinA * m_delta < 0)
+ {
+ m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[k].X * m_delta),
+ Round(m_srcPoly[j].Y + m_normals[k].Y * m_delta)));
+ m_destPoly.push_back(m_srcPoly[j]);
+ m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + m_normals[j].X * m_delta),
+ Round(m_srcPoly[j].Y + m_normals[j].Y * m_delta)));
+ }
+ else
+ switch (jointype)
+ {
+ case jtMiter:
+ {
+ double r = 1 + (m_normals[j].X * m_normals[k].X +
+ m_normals[j].Y * m_normals[k].Y);
+ if (r >= m_miterLim) DoMiter(j, k, r); else DoSquare(j, k);
+ break;
+ }
+ case jtSquare: DoSquare(j, k); break;
+ case jtRound: DoRound(j, k); break;
+ }
+ k = j;
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::DoSquare(int j, int k)
+{
+ double dx = std::tan(std::atan2(m_sinA,
+ m_normals[k].X * m_normals[j].X + m_normals[k].Y * m_normals[j].Y) / 4);
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[j].X + m_delta * (m_normals[k].X - m_normals[k].Y * dx)),
+ Round(m_srcPoly[j].Y + m_delta * (m_normals[k].Y + m_normals[k].X * dx))));
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[j].X + m_delta * (m_normals[j].X + m_normals[j].Y * dx)),
+ Round(m_srcPoly[j].Y + m_delta * (m_normals[j].Y - m_normals[j].X * dx))));
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::DoMiter(int j, int k, double r)
+{
+ double q = m_delta / r;
+ m_destPoly.push_back(IntPoint(Round(m_srcPoly[j].X + (m_normals[k].X + m_normals[j].X) * q),
+ Round(m_srcPoly[j].Y + (m_normals[k].Y + m_normals[j].Y) * q)));
+}
+//------------------------------------------------------------------------------
+
+void ClipperOffset::DoRound(int j, int k)
+{
+ double a = std::atan2(m_sinA,
+ m_normals[k].X * m_normals[j].X + m_normals[k].Y * m_normals[j].Y);
+ int steps = std::max((int)Round(m_StepsPerRad * std::fabs(a)), 1);
+
+ double X = m_normals[k].X, Y = m_normals[k].Y, X2;
+ for (int i = 0; i < steps; ++i)
+ {
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[j].X + X * m_delta),
+ Round(m_srcPoly[j].Y + Y * m_delta)));
+ X2 = X;
+ X = X * m_cos - m_sin * Y;
+ Y = X2 * m_sin + Y * m_cos;
+ }
+ m_destPoly.push_back(IntPoint(
+ Round(m_srcPoly[j].X + m_normals[j].X * m_delta),
+ Round(m_srcPoly[j].Y + m_normals[j].Y * m_delta)));
+}
+
+//------------------------------------------------------------------------------
+// Miscellaneous public functions
+//------------------------------------------------------------------------------
+
+void Clipper::DoSimplePolygons()
+{
+ PolyOutList::size_type i = 0;
+ while (i < m_PolyOuts.size())
+ {
+ OutRec* outrec = m_PolyOuts[i++];
+ OutPt* op = outrec->Pts;
+ if (!op || outrec->IsOpen) continue;
+ do //for each Pt in Polygon until duplicate found do ...
+ {
+ OutPt* op2 = op->Next;
+ while (op2 != outrec->Pts)
+ {
+ if ((op->Pt == op2->Pt) && op2->Next != op && op2->Prev != op)
+ {
+ //split the polygon into two ...
+ OutPt* op3 = op->Prev;
+ OutPt* op4 = op2->Prev;
+ op->Prev = op4;
+ op4->Next = op;
+ op2->Prev = op3;
+ op3->Next = op2;
+
+ outrec->Pts = op;
+ OutRec* outrec2 = CreateOutRec();
+ outrec2->Pts = op2;
+ UpdateOutPtIdxs(*outrec2);
+ if (Poly2ContainsPoly1(outrec2->Pts, outrec->Pts))
+ {
+ //OutRec2 is contained by OutRec1 ...
+ outrec2->IsHole = !outrec->IsHole;
+ outrec2->FirstLeft = outrec;
+ if (m_UsingPolyTree) FixupFirstLefts2(outrec2, outrec);
+ }
+ else
+ if (Poly2ContainsPoly1(outrec->Pts, outrec2->Pts))
+ {
+ //OutRec1 is contained by OutRec2 ...
+ outrec2->IsHole = outrec->IsHole;
+ outrec->IsHole = !outrec2->IsHole;
+ outrec2->FirstLeft = outrec->FirstLeft;
+ outrec->FirstLeft = outrec2;
+ if (m_UsingPolyTree) FixupFirstLefts2(outrec, outrec2);
+ }
+ else
+ {
+ //the 2 polygons are separate ...
+ outrec2->IsHole = outrec->IsHole;
+ outrec2->FirstLeft = outrec->FirstLeft;
+ if (m_UsingPolyTree) FixupFirstLefts1(outrec, outrec2);
+ }
+ op2 = op; //ie get ready for the Next iteration
+ }
+ op2 = op2->Next;
+ }
+ op = op->Next;
+ }
+ while (op != outrec->Pts);
+ }
+}
+//------------------------------------------------------------------------------
+
+void ReversePath(Path& p)
+{
+ std::reverse(p.begin(), p.end());
+}
+//------------------------------------------------------------------------------
+
+void ReversePaths(Paths& p)
+{
+ for (Paths::size_type i = 0; i < p.size(); ++i)
+ ReversePath(p[i]);
+}
+//------------------------------------------------------------------------------
+
+void SimplifyPolygon(const Path &in_poly, Paths &out_polys, PolyFillType fillType)
+{
+ Clipper c;
+ c.StrictlySimple(true);
+ c.AddPath(in_poly, ptSubject, true);
+ c.Execute(ctUnion, out_polys, fillType, fillType);
+}
+//------------------------------------------------------------------------------
+
+void SimplifyPolygons(const Paths &in_polys, Paths &out_polys, PolyFillType fillType)
+{
+ Clipper c;
+ c.StrictlySimple(true);
+ c.AddPaths(in_polys, ptSubject, true);
+ c.Execute(ctUnion, out_polys, fillType, fillType);
+}
+//------------------------------------------------------------------------------
+
+void SimplifyPolygons(Paths &polys, PolyFillType fillType)
+{
+ SimplifyPolygons(polys, polys, fillType);
+}
+//------------------------------------------------------------------------------
+
+inline double DistanceSqrd(const IntPoint& pt1, const IntPoint& pt2)
+{
+ double Dx = ((double)pt1.X - pt2.X);
+ double dy = ((double)pt1.Y - pt2.Y);
+ return (Dx*Dx + dy*dy);
+}
+//------------------------------------------------------------------------------
+
+double DistanceFromLineSqrd(
+ const IntPoint& pt, const IntPoint& ln1, const IntPoint& ln2)
+{
+ //The equation of a line in general form (Ax + By + C = 0)
+ //given 2 points (x¹,y¹) & (x²,y²) is ...
+ //(y¹ - y²)x + (x² - x¹)y + (y² - y¹)x¹ - (x² - x¹)y¹ = 0
+ //A = (y¹ - y²); B = (x² - x¹); C = (y² - y¹)x¹ - (x² - x¹)y¹
+ //perpendicular distance of point (x³,y³) = (Ax³ + By³ + C)/Sqrt(A² + B²)
+ //see http://en.wikipedia.org/wiki/Perpendicular_distance
+ double A = double(ln1.Y - ln2.Y);
+ double B = double(ln2.X - ln1.X);
+ double C = A * ln1.X + B * ln1.Y;
+ C = A * pt.X + B * pt.Y - C;
+ return (C * C) / (A * A + B * B);
+}
+//---------------------------------------------------------------------------
+
+bool SlopesNearCollinear(const IntPoint& pt1,
+ const IntPoint& pt2, const IntPoint& pt3, double distSqrd)
+{
+ //this function is more accurate when the point that's geometrically
+ //between the other 2 points is the one that's tested for distance.
+ //ie makes it more likely to pick up 'spikes' ...
+ if (Abs(pt1.X - pt2.X) > Abs(pt1.Y - pt2.Y))
+ {
+ if ((pt1.X > pt2.X) == (pt1.X < pt3.X))
+ return DistanceFromLineSqrd(pt1, pt2, pt3) < distSqrd;
+ else if ((pt2.X > pt1.X) == (pt2.X < pt3.X))
+ return DistanceFromLineSqrd(pt2, pt1, pt3) < distSqrd;
+ else
+ return DistanceFromLineSqrd(pt3, pt1, pt2) < distSqrd;
+ }
+ else
+ {
+ if ((pt1.Y > pt2.Y) == (pt1.Y < pt3.Y))
+ return DistanceFromLineSqrd(pt1, pt2, pt3) < distSqrd;
+ else if ((pt2.Y > pt1.Y) == (pt2.Y < pt3.Y))
+ return DistanceFromLineSqrd(pt2, pt1, pt3) < distSqrd;
+ else
+ return DistanceFromLineSqrd(pt3, pt1, pt2) < distSqrd;
+ }
+}
+//------------------------------------------------------------------------------
+
+bool PointsAreClose(IntPoint pt1, IntPoint pt2, double distSqrd)
+{
+ double Dx = (double)pt1.X - pt2.X;
+ double dy = (double)pt1.Y - pt2.Y;
+ return ((Dx * Dx) + (dy * dy) <= distSqrd);
+}
+//------------------------------------------------------------------------------
+
+OutPt* ExcludeOp(OutPt* op)
+{
+ OutPt* result = op->Prev;
+ result->Next = op->Next;
+ op->Next->Prev = result;
+ result->Idx = 0;
+ return result;
+}
+//------------------------------------------------------------------------------
+
+void CleanPolygon(const Path& in_poly, Path& out_poly, double distance)
+{
+ //distance = proximity in units/pixels below which vertices
+ //will be stripped. Default ~= sqrt(2).
+
+ size_t size = in_poly.size();
+
+ if (size == 0)
+ {
+ out_poly.clear();
+ return;
+ }
+
+ OutPt* outPts = new OutPt[size];
+ for (size_t i = 0; i < size; ++i)
+ {
+ outPts[i].Pt = in_poly[i];
+ outPts[i].Next = &outPts[(i + 1) % size];
+ outPts[i].Next->Prev = &outPts[i];
+ outPts[i].Idx = 0;
+ }
+
+ double distSqrd = distance * distance;
+ OutPt* op = &outPts[0];
+ while (op->Idx == 0 && op->Next != op->Prev)
+ {
+ if (PointsAreClose(op->Pt, op->Prev->Pt, distSqrd))
+ {
+ op = ExcludeOp(op);
+ size--;
+ }
+ else if (PointsAreClose(op->Prev->Pt, op->Next->Pt, distSqrd))
+ {
+ ExcludeOp(op->Next);
+ op = ExcludeOp(op);
+ size -= 2;
+ }
+ else if (SlopesNearCollinear(op->Prev->Pt, op->Pt, op->Next->Pt, distSqrd))
+ {
+ op = ExcludeOp(op);
+ size--;
+ }
+ else
+ {
+ op->Idx = 1;
+ op = op->Next;
+ }
+ }
+
+ if (size < 3) size = 0;
+ out_poly.resize(size);
+ for (size_t i = 0; i < size; ++i)
+ {
+ out_poly[i] = op->Pt;
+ op = op->Next;
+ }
+ delete [] outPts;
+}
+//------------------------------------------------------------------------------
+
+void CleanPolygon(Path& poly, double distance)
+{
+ CleanPolygon(poly, poly, distance);
+}
+//------------------------------------------------------------------------------
+
+void CleanPolygons(const Paths& in_polys, Paths& out_polys, double distance)
+{
+ out_polys.resize(in_polys.size());
+ for (Paths::size_type i = 0; i < in_polys.size(); ++i)
+ CleanPolygon(in_polys[i], out_polys[i], distance);
+}
+//------------------------------------------------------------------------------
+
+void CleanPolygons(Paths& polys, double distance)
+{
+ CleanPolygons(polys, polys, distance);
+}
+//------------------------------------------------------------------------------
+
+void Minkowski(const Path& poly, const Path& path,
+ Paths& solution, bool isSum, bool isClosed)
+{
+ int delta = (isClosed ? 1 : 0);
+ size_t polyCnt = poly.size();
+ size_t pathCnt = path.size();
+ Paths pp;
+ pp.reserve(pathCnt);
+ if (isSum)
+ for (size_t i = 0; i < pathCnt; ++i)
+ {
+ Path p;
+ p.reserve(polyCnt);
+ for (size_t j = 0; j < poly.size(); ++j)
+ p.push_back(IntPoint(path[i].X + poly[j].X, path[i].Y + poly[j].Y));
+ pp.push_back(p);
+ }
+ else
+ for (size_t i = 0; i < pathCnt; ++i)
+ {
+ Path p;
+ p.reserve(polyCnt);
+ for (size_t j = 0; j < poly.size(); ++j)
+ p.push_back(IntPoint(path[i].X - poly[j].X, path[i].Y - poly[j].Y));
+ pp.push_back(p);
+ }
+
+ solution.clear();
+ solution.reserve((pathCnt + delta) * (polyCnt + 1));
+ for (size_t i = 0; i < pathCnt - 1 + delta; ++i)
+ for (size_t j = 0; j < polyCnt; ++j)
+ {
+ Path quad;
+ quad.reserve(4);
+ quad.push_back(pp[i % pathCnt][j % polyCnt]);
+ quad.push_back(pp[(i + 1) % pathCnt][j % polyCnt]);
+ quad.push_back(pp[(i + 1) % pathCnt][(j + 1) % polyCnt]);
+ quad.push_back(pp[i % pathCnt][(j + 1) % polyCnt]);
+ if (!Orientation(quad)) ReversePath(quad);
+ solution.push_back(quad);
+ }
+}
+//------------------------------------------------------------------------------
+
+void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed)
+{
+ Minkowski(pattern, path, solution, true, pathIsClosed);
+ Clipper c;
+ c.AddPaths(solution, ptSubject, true);
+ c.Execute(ctUnion, solution, pftNonZero, pftNonZero);
+}
+//------------------------------------------------------------------------------
+
+void TranslatePath(const Path& input, Path& output, const IntPoint delta)
+{
+ //precondition: input != output
+ output.resize(input.size());
+ for (size_t i = 0; i < input.size(); ++i)
+ output[i] = IntPoint(input[i].X + delta.X, input[i].Y + delta.Y);
+}
+//------------------------------------------------------------------------------
+
+void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, bool pathIsClosed)
+{
+ Clipper c;
+ for (size_t i = 0; i < paths.size(); ++i)
+ {
+ Paths tmp;
+ Minkowski(pattern, paths[i], tmp, true, pathIsClosed);
+ c.AddPaths(tmp, ptSubject, true);
+ if (pathIsClosed)
+ {
+ Path tmp2;
+ TranslatePath(paths[i], tmp2, pattern[0]);
+ c.AddPath(tmp2, ptClip, true);
+ }
+ }
+ c.Execute(ctUnion, solution, pftNonZero, pftNonZero);
+}
+//------------------------------------------------------------------------------
+
+void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution)
+{
+ Minkowski(poly1, poly2, solution, false, true);
+ Clipper c;
+ c.AddPaths(solution, ptSubject, true);
+ c.Execute(ctUnion, solution, pftNonZero, pftNonZero);
+}
+//------------------------------------------------------------------------------
+
+enum NodeType {ntAny, ntOpen, ntClosed};
+
+void AddPolyNodeToPaths(const PolyNode& polynode, NodeType nodetype, Paths& paths)
+{
+ bool match = true;
+ if (nodetype == ntClosed) match = !polynode.IsOpen();
+ else if (nodetype == ntOpen) return;
+
+ if (!polynode.Contour.empty() && match)
+ paths.push_back(polynode.Contour);
+ for (int i = 0; i < polynode.ChildCount(); ++i)
+ AddPolyNodeToPaths(*polynode.Childs[i], nodetype, paths);
+}
+//------------------------------------------------------------------------------
+
+void PolyTreeToPaths(const PolyTree& polytree, Paths& paths)
+{
+ paths.resize(0);
+ paths.reserve(polytree.Total());
+ AddPolyNodeToPaths(polytree, ntAny, paths);
+}
+//------------------------------------------------------------------------------
+
+void ClosedPathsFromPolyTree(const PolyTree& polytree, Paths& paths)
+{
+ paths.resize(0);
+ paths.reserve(polytree.Total());
+ AddPolyNodeToPaths(polytree, ntClosed, paths);
+}
+//------------------------------------------------------------------------------
+
+void OpenPathsFromPolyTree(PolyTree& polytree, Paths& paths)
+{
+ paths.resize(0);
+ paths.reserve(polytree.Total());
+ //Open paths are top level only, so ...
+ for (int i = 0; i < polytree.ChildCount(); ++i)
+ if (polytree.Childs[i]->IsOpen())
+ paths.push_back(polytree.Childs[i]->Contour);
+}
+//------------------------------------------------------------------------------
+
+std::ostream& operator <<(std::ostream &s, const IntPoint &p)
+{
+ s << "(" << p.X << "," << p.Y << ")";
+ return s;
+}
+//------------------------------------------------------------------------------
+
+std::ostream& operator <<(std::ostream &s, const Path &p)
+{
+ if (p.empty()) return s;
+ Path::size_type last = p.size() -1;
+ for (Path::size_type i = 0; i < last; i++)
+ s << "(" << p[i].X << "," << p[i].Y << "), ";
+ s << "(" << p[last].X << "," << p[last].Y << ")\n";
+ return s;
+}
+//------------------------------------------------------------------------------
+
+std::ostream& operator <<(std::ostream &s, const Paths &p)
+{
+ for (Paths::size_type i = 0; i < p.size(); i++)
+ s << p[i];
+ s << "\n";
+ return s;
+}
+//------------------------------------------------------------------------------
+
+} //ClipperLib namespace
diff --git a/upstream/clipper-6.4.2/cpp/clipper.hpp b/upstream/clipper-6.4.2/cpp/clipper.hpp
new file mode 100644
index 0000000..df1f813
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/clipper.hpp
@@ -0,0 +1,406 @@
+/*******************************************************************************
+* *
+* Author : Angus Johnson *
+* Version : 6.4.2 *
+* Date : 27 February 2017 *
+* Website : http://www.angusj.com *
+* Copyright : Angus Johnson 2010-2017 *
+* *
+* License: *
+* Use, modification & distribution is subject to Boost Software License Ver 1. *
+* http://www.boost.org/LICENSE_1_0.txt *
+* *
+* Attributions: *
+* The code in this library is an extension of Bala Vatti's clipping algorithm: *
+* "A generic solution to polygon clipping" *
+* Communications of the ACM, Vol 35, Issue 7 (July 1992) pp 56-63. *
+* http://portal.acm.org/citation.cfm?id=129906 *
+* *
+* Computer graphics and geometric modeling: implementation and algorithms *
+* By Max K. Agoston *
+* Springer; 1 edition (January 4, 2005) *
+* http://books.google.com/books?q=vatti+clipping+agoston *
+* *
+* See also: *
+* "Polygon Offsetting by Computing Winding Numbers" *
+* Paper no. DETC2005-85513 pp. 565-575 *
+* ASME 2005 International Design Engineering Technical Conferences *
+* and Computers and Information in Engineering Conference (IDETC/CIE2005) *
+* September 24-28, 2005 , Long Beach, California, USA *
+* http://www.me.berkeley.edu/~mcmains/pubs/DAC05OffsetPolygon.pdf *
+* *
+*******************************************************************************/
+
+#ifndef clipper_hpp
+#define clipper_hpp
+
+#define CLIPPER_VERSION "6.4.2"
+
+//use_int32: When enabled 32bit ints are used instead of 64bit ints. This
+//improve performance but coordinate values are limited to the range +/- 46340
+//#define use_int32
+
+//use_xyz: adds a Z member to IntPoint. Adds a minor cost to perfomance.
+//#define use_xyz
+
+//use_lines: Enables line clipping. Adds a very minor cost to performance.
+#define use_lines
+
+//use_deprecated: Enables temporary support for the obsolete functions
+//#define use_deprecated
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+namespace ClipperLib {
+
+enum ClipType { ctIntersection, ctUnion, ctDifference, ctXor };
+enum PolyType { ptSubject, ptClip };
+//By far the most widely used winding rules for polygon filling are
+//EvenOdd & NonZero (GDI, GDI+, XLib, OpenGL, Cairo, AGG, Quartz, SVG, Gr32)
+//Others rules include Positive, Negative and ABS_GTR_EQ_TWO (only in OpenGL)
+//see http://glprogramming.com/red/chapter11.html
+enum PolyFillType { pftEvenOdd, pftNonZero, pftPositive, pftNegative };
+
+#ifdef use_int32
+ typedef int cInt;
+ static cInt const loRange = 0x7FFF;
+ static cInt const hiRange = 0x7FFF;
+#else
+ typedef signed long long cInt;
+ static cInt const loRange = 0x3FFFFFFF;
+ static cInt const hiRange = 0x3FFFFFFFFFFFFFFFLL;
+ typedef signed long long long64; //used by Int128 class
+ typedef unsigned long long ulong64;
+
+#endif
+
+struct IntPoint {
+ cInt X;
+ cInt Y;
+#ifdef use_xyz
+ cInt Z;
+ IntPoint(cInt x = 0, cInt y = 0, cInt z = 0): X(x), Y(y), Z(z) {};
+#else
+ IntPoint(cInt x = 0, cInt y = 0): X(x), Y(y) {};
+#endif
+
+ friend inline bool operator== (const IntPoint& a, const IntPoint& b)
+ {
+ return a.X == b.X && a.Y == b.Y;
+ }
+ friend inline bool operator!= (const IntPoint& a, const IntPoint& b)
+ {
+ return a.X != b.X || a.Y != b.Y;
+ }
+};
+//------------------------------------------------------------------------------
+
+typedef std::vector< IntPoint > Path;
+typedef std::vector< Path > Paths;
+
+inline Path& operator <<(Path& poly, const IntPoint& p) {poly.push_back(p); return poly;}
+inline Paths& operator <<(Paths& polys, const Path& p) {polys.push_back(p); return polys;}
+
+std::ostream& operator <<(std::ostream &s, const IntPoint &p);
+std::ostream& operator <<(std::ostream &s, const Path &p);
+std::ostream& operator <<(std::ostream &s, const Paths &p);
+
+struct DoublePoint
+{
+ double X;
+ double Y;
+ DoublePoint(double x = 0, double y = 0) : X(x), Y(y) {}
+ DoublePoint(IntPoint ip) : X((double)ip.X), Y((double)ip.Y) {}
+};
+//------------------------------------------------------------------------------
+
+#ifdef use_xyz
+typedef void (*ZFillCallback)(IntPoint& e1bot, IntPoint& e1top, IntPoint& e2bot, IntPoint& e2top, IntPoint& pt);
+#endif
+
+enum InitOptions {ioReverseSolution = 1, ioStrictlySimple = 2, ioPreserveCollinear = 4};
+enum JoinType {jtSquare, jtRound, jtMiter};
+enum EndType {etClosedPolygon, etClosedLine, etOpenButt, etOpenSquare, etOpenRound};
+
+class PolyNode;
+typedef std::vector< PolyNode* > PolyNodes;
+
+class PolyNode
+{
+public:
+ PolyNode();
+ virtual ~PolyNode(){};
+ Path Contour;
+ PolyNodes Childs;
+ PolyNode* Parent;
+ PolyNode* GetNext() const;
+ bool IsHole() const;
+ bool IsOpen() const;
+ int ChildCount() const;
+private:
+ //PolyNode& operator =(PolyNode& other);
+ unsigned Index; //node index in Parent.Childs
+ bool m_IsOpen;
+ JoinType m_jointype;
+ EndType m_endtype;
+ PolyNode* GetNextSiblingUp() const;
+ void AddChild(PolyNode& child);
+ friend class Clipper; //to access Index
+ friend class ClipperOffset;
+};
+
+class PolyTree: public PolyNode
+{
+public:
+ ~PolyTree(){ Clear(); };
+ PolyNode* GetFirst() const;
+ void Clear();
+ int Total() const;
+private:
+ //PolyTree& operator =(PolyTree& other);
+ PolyNodes AllNodes;
+ friend class Clipper; //to access AllNodes
+};
+
+bool Orientation(const Path &poly);
+double Area(const Path &poly);
+int PointInPolygon(const IntPoint &pt, const Path &path);
+
+void SimplifyPolygon(const Path &in_poly, Paths &out_polys, PolyFillType fillType = pftEvenOdd);
+void SimplifyPolygons(const Paths &in_polys, Paths &out_polys, PolyFillType fillType = pftEvenOdd);
+void SimplifyPolygons(Paths &polys, PolyFillType fillType = pftEvenOdd);
+
+void CleanPolygon(const Path& in_poly, Path& out_poly, double distance = 1.415);
+void CleanPolygon(Path& poly, double distance = 1.415);
+void CleanPolygons(const Paths& in_polys, Paths& out_polys, double distance = 1.415);
+void CleanPolygons(Paths& polys, double distance = 1.415);
+
+void MinkowskiSum(const Path& pattern, const Path& path, Paths& solution, bool pathIsClosed);
+void MinkowskiSum(const Path& pattern, const Paths& paths, Paths& solution, bool pathIsClosed);
+void MinkowskiDiff(const Path& poly1, const Path& poly2, Paths& solution);
+
+void PolyTreeToPaths(const PolyTree& polytree, Paths& paths);
+void ClosedPathsFromPolyTree(const PolyTree& polytree, Paths& paths);
+void OpenPathsFromPolyTree(PolyTree& polytree, Paths& paths);
+
+void ReversePath(Path& p);
+void ReversePaths(Paths& p);
+
+struct IntRect { cInt left; cInt top; cInt right; cInt bottom; };
+
+//enums that are used internally ...
+enum EdgeSide { esLeft = 1, esRight = 2};
+
+//forward declarations (for stuff used internally) ...
+struct TEdge;
+struct IntersectNode;
+struct LocalMinimum;
+struct OutPt;
+struct OutRec;
+struct Join;
+
+typedef std::vector < OutRec* > PolyOutList;
+typedef std::vector < TEdge* > EdgeList;
+typedef std::vector < Join* > JoinList;
+typedef std::vector < IntersectNode* > IntersectList;
+
+//------------------------------------------------------------------------------
+
+//ClipperBase is the ancestor to the Clipper class. It should not be
+//instantiated directly. This class simply abstracts the conversion of sets of
+//polygon coordinates into edge objects that are stored in a LocalMinima list.
+class ClipperBase
+{
+public:
+ ClipperBase();
+ virtual ~ClipperBase();
+ virtual bool AddPath(const Path &pg, PolyType PolyTyp, bool Closed);
+ bool AddPaths(const Paths &ppg, PolyType PolyTyp, bool Closed);
+ virtual void Clear();
+ IntRect GetBounds();
+ bool PreserveCollinear() {return m_PreserveCollinear;};
+ void PreserveCollinear(bool value) {m_PreserveCollinear = value;};
+protected:
+ void DisposeLocalMinimaList();
+ TEdge* AddBoundsToLML(TEdge *e, bool IsClosed);
+ virtual void Reset();
+ TEdge* ProcessBound(TEdge* E, bool IsClockwise);
+ void InsertScanbeam(const cInt Y);
+ bool PopScanbeam(cInt &Y);
+ bool LocalMinimaPending();
+ bool PopLocalMinima(cInt Y, const LocalMinimum *&locMin);
+ OutRec* CreateOutRec();
+ void DisposeAllOutRecs();
+ void DisposeOutRec(PolyOutList::size_type index);
+ void SwapPositionsInAEL(TEdge *edge1, TEdge *edge2);
+ void DeleteFromAEL(TEdge *e);
+ void UpdateEdgeIntoAEL(TEdge *&e);
+
+ typedef std::vector MinimaList;
+ MinimaList::iterator m_CurrentLM;
+ MinimaList m_MinimaList;
+
+ bool m_UseFullRange;
+ EdgeList m_edges;
+ bool m_PreserveCollinear;
+ bool m_HasOpenPaths;
+ PolyOutList m_PolyOuts;
+ TEdge *m_ActiveEdges;
+
+ typedef std::priority_queue ScanbeamList;
+ ScanbeamList m_Scanbeam;
+};
+//------------------------------------------------------------------------------
+
+class Clipper : public virtual ClipperBase
+{
+public:
+ Clipper(int initOptions = 0);
+ bool Execute(ClipType clipType,
+ Paths &solution,
+ PolyFillType fillType = pftEvenOdd);
+ bool Execute(ClipType clipType,
+ Paths &solution,
+ PolyFillType subjFillType,
+ PolyFillType clipFillType);
+ bool Execute(ClipType clipType,
+ PolyTree &polytree,
+ PolyFillType fillType = pftEvenOdd);
+ bool Execute(ClipType clipType,
+ PolyTree &polytree,
+ PolyFillType subjFillType,
+ PolyFillType clipFillType);
+ bool ReverseSolution() { return m_ReverseOutput; };
+ void ReverseSolution(bool value) {m_ReverseOutput = value;};
+ bool StrictlySimple() {return m_StrictSimple;};
+ void StrictlySimple(bool value) {m_StrictSimple = value;};
+ //set the callback function for z value filling on intersections (otherwise Z is 0)
+#ifdef use_xyz
+ void ZFillFunction(ZFillCallback zFillFunc);
+#endif
+protected:
+ virtual bool ExecuteInternal();
+private:
+ JoinList m_Joins;
+ JoinList m_GhostJoins;
+ IntersectList m_IntersectList;
+ ClipType m_ClipType;
+ typedef std::list MaximaList;
+ MaximaList m_Maxima;
+ TEdge *m_SortedEdges;
+ bool m_ExecuteLocked;
+ PolyFillType m_ClipFillType;
+ PolyFillType m_SubjFillType;
+ bool m_ReverseOutput;
+ bool m_UsingPolyTree;
+ bool m_StrictSimple;
+#ifdef use_xyz
+ ZFillCallback m_ZFill; //custom callback
+#endif
+ void SetWindingCount(TEdge& edge);
+ bool IsEvenOddFillType(const TEdge& edge) const;
+ bool IsEvenOddAltFillType(const TEdge& edge) const;
+ void InsertLocalMinimaIntoAEL(const cInt botY);
+ void InsertEdgeIntoAEL(TEdge *edge, TEdge* startEdge);
+ void AddEdgeToSEL(TEdge *edge);
+ bool PopEdgeFromSEL(TEdge *&edge);
+ void CopyAELToSEL();
+ void DeleteFromSEL(TEdge *e);
+ void SwapPositionsInSEL(TEdge *edge1, TEdge *edge2);
+ bool IsContributing(const TEdge& edge) const;
+ bool IsTopHorz(const cInt XPos);
+ void DoMaxima(TEdge *e);
+ void ProcessHorizontals();
+ void ProcessHorizontal(TEdge *horzEdge);
+ void AddLocalMaxPoly(TEdge *e1, TEdge *e2, const IntPoint &pt);
+ OutPt* AddLocalMinPoly(TEdge *e1, TEdge *e2, const IntPoint &pt);
+ OutRec* GetOutRec(int idx);
+ void AppendPolygon(TEdge *e1, TEdge *e2);
+ void IntersectEdges(TEdge *e1, TEdge *e2, IntPoint &pt);
+ OutPt* AddOutPt(TEdge *e, const IntPoint &pt);
+ OutPt* GetLastOutPt(TEdge *e);
+ bool ProcessIntersections(const cInt topY);
+ void BuildIntersectList(const cInt topY);
+ void ProcessIntersectList();
+ void ProcessEdgesAtTopOfScanbeam(const cInt topY);
+ void BuildResult(Paths& polys);
+ void BuildResult2(PolyTree& polytree);
+ void SetHoleState(TEdge *e, OutRec *outrec);
+ void DisposeIntersectNodes();
+ bool FixupIntersectionOrder();
+ void FixupOutPolygon(OutRec &outrec);
+ void FixupOutPolyline(OutRec &outrec);
+ bool IsHole(TEdge *e);
+ bool FindOwnerFromSplitRecs(OutRec &outRec, OutRec *&currOrfl);
+ void FixHoleLinkage(OutRec &outrec);
+ void AddJoin(OutPt *op1, OutPt *op2, const IntPoint offPt);
+ void ClearJoins();
+ void ClearGhostJoins();
+ void AddGhostJoin(OutPt *op, const IntPoint offPt);
+ bool JoinPoints(Join *j, OutRec* outRec1, OutRec* outRec2);
+ void JoinCommonEdges();
+ void DoSimplePolygons();
+ void FixupFirstLefts1(OutRec* OldOutRec, OutRec* NewOutRec);
+ void FixupFirstLefts2(OutRec* InnerOutRec, OutRec* OuterOutRec);
+ void FixupFirstLefts3(OutRec* OldOutRec, OutRec* NewOutRec);
+#ifdef use_xyz
+ void SetZ(IntPoint& pt, TEdge& e1, TEdge& e2);
+#endif
+};
+//------------------------------------------------------------------------------
+
+class ClipperOffset
+{
+public:
+ ClipperOffset(double miterLimit = 2.0, double roundPrecision = 0.25);
+ ~ClipperOffset();
+ void AddPath(const Path& path, JoinType joinType, EndType endType);
+ void AddPaths(const Paths& paths, JoinType joinType, EndType endType);
+ void Execute(Paths& solution, double delta);
+ void Execute(PolyTree& solution, double delta);
+ void Clear();
+ double MiterLimit;
+ double ArcTolerance;
+private:
+ Paths m_destPolys;
+ Path m_srcPoly;
+ Path m_destPoly;
+ std::vector m_normals;
+ double m_delta, m_sinA, m_sin, m_cos;
+ double m_miterLim, m_StepsPerRad;
+ IntPoint m_lowest;
+ PolyNode m_polyNodes;
+
+ void FixOrientations();
+ void DoOffset(double delta);
+ void OffsetPoint(int j, int& k, JoinType jointype);
+ void DoSquare(int j, int k);
+ void DoMiter(int j, int k, double r);
+ void DoRound(int j, int k);
+};
+//------------------------------------------------------------------------------
+
+class clipperException : public std::exception
+{
+ public:
+ clipperException(const char* description): m_descr(description) {}
+ virtual ~clipperException() throw() {}
+ virtual const char* what() const throw() {return m_descr.c_str();}
+ private:
+ std::string m_descr;
+};
+//------------------------------------------------------------------------------
+
+} //ClipperLib namespace
+
+#endif //clipper_hpp
+
+
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/Cairo Resources.txt b/upstream/clipper-6.4.2/cpp/cpp_cairo/Cairo Resources.txt
new file mode 100644
index 0000000..e868eec
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/Cairo Resources.txt
@@ -0,0 +1,6 @@
+http://cairographics.org/
+
+The Windows dynamic linked libraries necessary to run Cairo can be downloaded from
+http://www.gtk.org/download/win32.php
+All the dlls listed under the heading "Required third party dependencies" are
+required except gettext-runtime.dll.
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.sln b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.sln
new file mode 100644
index 0000000..651e81a
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.sln
@@ -0,0 +1,20 @@
+
+Microsoft Visual Studio Solution File, Format Version 11.00
+# Visual C++ Express 2010
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "cairo", "cairo.vcxproj", "{6AFBCA2B-9262-6D28-7506-E13747347388}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Win32 = Debug|Win32
+ Release|Win32 = Release|Win32
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {6AFBCA2B-9262-6D28-7506-E13747347388}.Debug|Win32.ActiveCfg = Debug|Win32
+ {6AFBCA2B-9262-6D28-7506-E13747347388}.Debug|Win32.Build.0 = Debug|Win32
+ {6AFBCA2B-9262-6D28-7506-E13747347388}.Release|Win32.ActiveCfg = Release|Win32
+ {6AFBCA2B-9262-6D28-7506-E13747347388}.Release|Win32.Build.0 = Release|Win32
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+EndGlobal
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.vcxproj b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.vcxproj
new file mode 100644
index 0000000..9816ce1
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo.vcxproj
@@ -0,0 +1,93 @@
+
+
+
+
+ Debug
+ Win32
+
+
+ Release
+ Win32
+
+
+
+ Win32Proj
+
+
+
+ Application
+ true
+ Unicode
+
+
+ Application
+ false
+
+
+
+
+
+
+
+
+
+
+
+
+ true
+ C:\Program Files %28x86%29\Borland\Clipper\PreReleaseTesting\cpp\cairo_src;$(IncludePath)
+ C:\Program Files %28x86%29\Borland\Clipper\PreReleaseTesting\cpp\cairo_src;C:\Program Files %28x86%29\Borland\graphics32\Examples\Vcl\Drawing\Clipper\PreReleaseTesting\cpp\cairo_src;$(SourcePath)
+
+
+ true
+
+
+
+ WIN32;_DEBUG;_WINDOWS;%(PreprocessorDefinitions)
+ C:\Program Files (x86)\Borland\graphics32\Examples\Vcl\Drawing\Clipper\PreReleaseTesting\cpp\cairo_src;%(AdditionalIncludeDirectories)
+ MultiThreadedDebugDLL
+ Level3
+ ProgramDatabase
+ Disabled
+
+
+
+
+ MachineX86
+ true
+ Windows
+
+
+
+
+ WIN32;NDEBUG;_WINDOWS;%(PreprocessorDefinitions)
+ C:\Program Files (x86)\Borland\graphics32\Examples\Vcl\Drawing\Clipper\PreReleaseTesting\cpp\cairo_src;%(AdditionalIncludeDirectories)
+ MultiThreadedDLL
+ Level3
+ ProgramDatabase
+
+
+ MachineX86
+ true
+ Windows
+ true
+ true
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.cpp b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.cpp
new file mode 100644
index 0000000..72d5930
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.cpp
@@ -0,0 +1,133 @@
+/*******************************************************************************
+* *
+* Author : Angus Johnson *
+* Version : 1.1 *
+* Date : 4 April 2011 *
+* Copyright : Angus Johnson 2010-2011 *
+* *
+* License: *
+* Use, modification & distribution is subject to Boost Software License Ver 1. *
+* http://www.boost.org/LICENSE_1_0.txt *
+* *
+* Modified by Mike Owens to support coordinate transformation *
+*******************************************************************************/
+
+#include
+#include
+#include
+#include
+#include "clipper.hpp"
+#include "cairo_clipper.hpp"
+
+namespace ClipperLib {
+ namespace cairo {
+
+ namespace {
+
+ inline cInt Round(double val)
+ {
+ if ((val < 0)) return (cInt)(val - 0.5); else return (cInt)(val + 0.5);
+ }
+
+ void transform_point(cairo_t* pen, Transform transform, cInt* x, cInt* y)
+ {
+ double _x = (double)*x, _y = (double)*y;
+ switch (transform)
+ {
+ case tDeviceToUser:
+ cairo_device_to_user(pen, &_x, &_y);
+ break;
+ case tUserToDevice:
+ cairo_user_to_device(pen, &_x, &_y);
+ break;
+ default:
+ ;
+ }
+ *x = Round(_x); *y = Round(_y);
+ }
+ }
+
+ void cairo_to_clipper(cairo_t* cr,
+ Paths &pg,
+ int scaling_factor,
+ Transform transform)
+ {
+ if (scaling_factor > 8 || scaling_factor < 0)
+ throw clipperCairoException("cairo_to_clipper: invalid scaling factor");
+ double scaling = std::pow((double)10, scaling_factor);
+
+ pg.clear();
+ cairo_path_t *path = cairo_copy_path_flat(cr);
+
+ int poly_count = 0;
+ for (int i = 0; i < path->num_data; i += path->data[i].header.length) {
+ if( path->data[i].header.type == CAIRO_PATH_CLOSE_PATH) poly_count++;
+ }
+
+ pg.resize(poly_count);
+ int i = 0, pc = 0;
+ while (pc < poly_count)
+ {
+ int vert_count = 1;
+ int j = i;
+ while(j < path->num_data && path->data[j].header.type != CAIRO_PATH_CLOSE_PATH)
+ {
+ if (path->data[j].header.type == CAIRO_PATH_LINE_TO)
+ vert_count++;
+ j += path->data[j].header.length;
+ }
+ pg[pc].resize(vert_count);
+ if (path->data[i].header.type != CAIRO_PATH_MOVE_TO) {
+ pg.resize(pc);
+ break;
+ }
+ pg[pc][0].X = Round(path->data[i+1].point.x *scaling);
+ pg[pc][0].Y = Round(path->data[i+1].point.y *scaling);
+ if (transform != tNone)
+ transform_point(cr, transform, &pg[pc][0].X, &pg[pc][0].Y);
+
+ i += path->data[i].header.length;
+
+ j = 1;
+ while (j < vert_count && i < path->num_data && path->data[i].header.type == CAIRO_PATH_LINE_TO) {
+ pg[pc][j].X = Round(path->data[i+1].point.x *scaling);
+ pg[pc][j].Y = Round(path->data[i+1].point.y *scaling);
+ if (transform != tNone)
+ transform_point(cr, transform, &pg[pc][j].X, &pg[pc][j].Y);
+ j++;
+ i += path->data[i].header.length;
+ }
+ pc++;
+ i += path->data[i].header.length;
+ }
+ cairo_path_destroy(path);
+ }
+ //--------------------------------------------------------------------------
+
+ void clipper_to_cairo(const Paths &pg, cairo_t* cr, int scaling_factor, Transform transform)
+ {
+ if (scaling_factor > 8 || scaling_factor < 0)
+ throw clipperCairoException("clipper_to_cairo: invalid scaling factor");
+ double scaling = std::pow((double)10, scaling_factor);
+ for (size_t i = 0; i < pg.size(); ++i)
+ {
+ size_t sz = pg[i].size();
+ if (sz < 3)
+ continue;
+ cairo_new_sub_path(cr);
+ //std::cerr << "sub path";
+ for (size_t j = 0; j < sz; ++j) {
+ cInt x = pg[i][j].X, y = pg[i][j].Y;
+ if (transform != tNone)
+ transform_point(cr, transform, &x, &y);
+ //std::cerr << " (" << (double)x / scaling << "," << (double)y / scaling << ")";
+ cairo_line_to(cr, (double)x / scaling, (double)y / scaling);
+ }
+ //std::cerr << std::endl;
+ cairo_close_path(cr);
+ }
+ }
+ //--------------------------------------------------------------------------
+
+ }
+}
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.hpp b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.hpp
new file mode 100644
index 0000000..7c52dfd
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.hpp
@@ -0,0 +1,59 @@
+/*******************************************************************************
+* *
+* Author : Angus Johnson *
+* Version : 1.1 *
+* Date : 4 April 2011 *
+* Copyright : Angus Johnson 2010-2011 *
+* *
+* License: *
+* Use, modification & distribution is subject to Boost Software License Ver 1. *
+* http://www.boost.org/LICENSE_1_0.txt *
+* *
+* Modified by Mike Owens to support coordinate transformation *
+*******************************************************************************/
+
+#ifndef CLIPPER_CAIRO_CLIPPER_HPP
+#define CLIPPER_CAIRO_CLIPPER_HPP
+
+#include "clipper.hpp"
+
+typedef struct _cairo cairo_t;
+
+namespace ClipperLib {
+ namespace cairo {
+
+ enum Transform {
+ tNone,
+ tUserToDevice,
+ tDeviceToUser
+ };
+
+//nb: Since Clipper only accepts integer coordinates, fractional values have to
+//be scaled up and down when being passed to and from Clipper. This is easily
+//accomplished by setting the scaling factor (10^x) in the following functions.
+//When scaling, remember that on most platforms, integer is only a 32bit value.
+ void cairo_to_clipper(cairo_t* cr,
+ ClipperLib::Paths &pg,
+ int scaling_factor = 0,
+ Transform transform = tNone);
+
+ void clipper_to_cairo(const ClipperLib::Paths &pg,
+ cairo_t* cr,
+ int scaling_factor = 0,
+ Transform transform = tNone);
+ }
+
+ class clipperCairoException : public std::exception
+ {
+ public:
+ clipperCairoException(const char* description)
+ throw(): std::exception(), m_description (description) {}
+ virtual ~clipperCairoException() throw() {}
+ virtual const char* what() const throw() {return m_description.c_str();}
+ private:
+ std::string m_description;
+ };
+}
+
+#endif
+
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.o b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.o
new file mode 100644
index 0000000..c7ca888
Binary files /dev/null and b/upstream/clipper-6.4.2/cpp/cpp_cairo/cairo_clipper.o differ
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/libcairo-2.lib b/upstream/clipper-6.4.2/cpp/cpp_cairo/libcairo-2.lib
new file mode 100644
index 0000000..9be9bc1
Binary files /dev/null and b/upstream/clipper-6.4.2/cpp/cpp_cairo/libcairo-2.lib differ
diff --git a/upstream/clipper-6.4.2/cpp/cpp_cairo/main.cpp b/upstream/clipper-6.4.2/cpp/cpp_cairo/main.cpp
new file mode 100644
index 0000000..b196a22
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/cpp_cairo/main.cpp
@@ -0,0 +1,182 @@
+//---------------------------------------------------------------------------
+
+#include
+#include
+#include
+#include
+#pragma hdrstop
+
+#include "clipper.hpp"
+#include "cairo.h"
+#include "cairo-win32.h"
+#include "cairo_clipper.hpp"
+//---------------------------------------------------------------------------
+
+int offsetVal;
+
+LRESULT CALLBACK WndProcedure(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+
+int CALLBACK wWinMain(HINSTANCE hInstance,
+ HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
+{
+ WCHAR* ClsName = L"CairoApp";
+ WCHAR* WndName = L"A Simple Cairo Clipper Demo";
+ offsetVal = 0;
+
+ MSG Msg;
+ HWND hWnd;
+ WNDCLASSEX WndClsEx;
+
+ // Create the application window
+ WndClsEx.cbSize = sizeof(WNDCLASSEX);
+ WndClsEx.style = CS_HREDRAW | CS_VREDRAW;
+ WndClsEx.lpfnWndProc = WndProcedure;
+ WndClsEx.cbClsExtra = 0;
+ WndClsEx.cbWndExtra = 0;
+ WndClsEx.hIcon = LoadIcon(NULL, IDI_APPLICATION);
+ WndClsEx.hCursor = LoadCursor(NULL, IDC_ARROW);
+ WndClsEx.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
+ WndClsEx.lpszMenuName = NULL;
+ WndClsEx.lpszClassName = ClsName;
+ WndClsEx.hInstance = hInstance;
+ WndClsEx.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
+
+ // Register the application
+ RegisterClassEx(&WndClsEx);
+
+ // Create the window object
+ hWnd = CreateWindow(ClsName, WndName, WS_OVERLAPPEDWINDOW,
+ CW_USEDEFAULT, CW_USEDEFAULT, 400, 300,
+ NULL, NULL, hInstance, NULL);
+ if( !hWnd ) return 0;
+
+ ShowWindow(hWnd, SW_SHOWNORMAL);
+ UpdateWindow(hWnd);
+
+ while( GetMessage(&Msg, NULL, 0, 0) )
+ {
+ TranslateMessage(&Msg);
+ DispatchMessage(&Msg);
+ }
+ return Msg.wParam;
+}
+//------------------------------------------------------------------------------
+
+
+void OnPaint(HWND hWnd, HDC dc)
+{
+ RECT rec;
+ GetClientRect(hWnd, &rec);
+ cairo_surface_t* surface = cairo_win32_surface_create(dc);
+ cairo_t* cr = cairo_create(surface);
+
+ cairo_set_fill_rule(cr, CAIRO_FILL_RULE_WINDING);
+ cairo_set_line_width (cr, 2.0);
+
+ //fill background with white ...
+ cairo_rectangle(cr, 0, 0, rec.right, rec.bottom);
+ cairo_set_source_rgba(cr, 1, 1, 1, 1);
+ cairo_fill(cr);
+
+ using namespace ClipperLib;
+
+ const int scaling = 2;
+
+ Clipper clpr; //clipper class
+ Paths pg; //std::vector for polygon(s) storage
+
+ //create a circular pattern, add the path to clipper and then draw it ...
+ cairo_arc(cr, 170,110,70,0,2*3.1415926);
+ cairo_close_path(cr);
+ cairo::cairo_to_clipper(cr, pg, scaling);
+ clpr.AddPaths(pg, ptSubject, true);
+ cairo_set_source_rgba(cr, 0, 0, 1, 0.25);
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgba(cr, 0, 0, 0, 0.5);
+ cairo_stroke (cr);
+
+ //draw a star and another circle, add them to clipper and draw ...
+ cairo_move_to(cr, 60,110);
+ cairo_line_to (cr, 240,70);
+ cairo_line_to (cr, 110,210);
+ cairo_line_to (cr, 140,25);
+ cairo_line_to (cr, 230,200);
+ cairo_close_path(cr);
+ cairo_new_sub_path(cr);
+ cairo_arc(cr, 190,50,20,0,2*3.1415926);
+ cairo_close_path(cr);
+ cairo::cairo_to_clipper(cr, pg, scaling);
+ clpr.AddPaths(pg, ptClip, true);
+ cairo_set_source_rgba(cr, 1, 0, 0, 0.25);
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgba(cr, 0, 0, 0, 0.5);
+ cairo_stroke (cr);
+
+ clpr.Execute(ctIntersection, pg, pftNonZero, pftNonZero);
+ //now do something fancy with the returned polygons ...
+ OffsetPaths(pg, pg, offsetVal * std::pow((double)10,scaling), jtMiter, etClosed);
+
+ //finally copy the clipped path back to the cairo context and draw it ...
+ cairo::clipper_to_cairo(pg, cr, scaling);
+ cairo_set_source_rgba(cr, 1, 1, 0, 1);
+ cairo_fill_preserve (cr);
+ cairo_set_source_rgba(cr, 0, 0, 0, 1);
+ cairo_stroke (cr);
+
+ cairo_text_extents_t extent;
+ cairo_set_font_size(cr,11);
+ std::stringstream ss;
+ ss << "Polygon offset = " << offsetVal << ". (Adjust with arrow keys)";
+ std::string s = ss.str();
+ cairo_text_extents(cr, s.c_str(), &extent);
+ cairo_move_to(cr, 10, rec.bottom - extent.height);
+ cairo_show_text(cr, s.c_str());
+
+ cairo_destroy (cr);
+ cairo_surface_destroy (surface);
+}
+//------------------------------------------------------------------------------
+
+LRESULT CALLBACK WndProcedure(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
+{
+ PAINTSTRUCT ps;
+ HDC Handle;
+
+ switch(Msg)
+ {
+ case WM_DESTROY:
+ PostQuitMessage(WM_QUIT);
+ return 0;
+
+ case WM_PAINT:
+ Handle = BeginPaint(hWnd, &ps);
+ OnPaint(hWnd, Handle);
+ EndPaint(hWnd, &ps);
+ return 0;
+
+ case WM_KEYDOWN:
+ switch(wParam)
+ {
+ case VK_ESCAPE:
+ PostQuitMessage(0);
+ return 0;
+ case VK_RIGHT:
+ case VK_UP:
+ if (offsetVal < 20) offsetVal++;
+ InvalidateRect(hWnd, 0, false);
+ return 0;
+ case VK_LEFT:
+ case VK_DOWN:
+ if (offsetVal > -20) offsetVal--;
+ InvalidateRect(hWnd, 0, false);
+ return 0;
+ default:
+ return DefWindowProc(hWnd, Msg, wParam, lParam);
+ }
+
+ default:
+ return DefWindowProc(hWnd, Msg, wParam, lParam);
+ }
+}
+//---------------------------------------------------------------------------
+
diff --git a/upstream/clipper-6.4.2/cpp/polyclipping.pc.cmakein b/upstream/clipper-6.4.2/cpp/polyclipping.pc.cmakein
new file mode 100644
index 0000000..7cf55f2
--- /dev/null
+++ b/upstream/clipper-6.4.2/cpp/polyclipping.pc.cmakein
@@ -0,0 +1,13 @@
+prefix=@CMAKE_INSTALL_PREFIX@
+exec_prefix=@CMAKE_INSTALL_PREFIX@
+libdir=@CMAKE_INSTALL_LIBDIR@
+sharedlibdir=@CMAKE_INSTALL_LIBDIR@
+includedir=@CMAKE_INSTALL_INCDIR@
+
+Name: polyclipping
+Description: polygon clipping library
+Version: @VERSION@
+
+Requires:
+Libs: -L${libdir} -L${sharedlibdir} -lpolyclipping
+Cflags: -I${includedir}
--
cgit
.
+var CLASS_NAME = "expandable";
+
+// This value is the assumed initial display style for a sublist when it cannot
+// be determined by other means. See below.
+var DEFAULT_DISPLAY = "none";
+
+// The namespace to use when using this script in an XML context.
+var XMLNS = "http://www.w3.org/1999/xhtml";
+
+// The beginning of the title text for the switch when the sublist is collapsed.
+var CLOSED_PREFIX = "Expand list: ";
+
+// The beginning of the title text for the switch when the sublist is expanded.
+var OPENED_PREFIX = "Collapse list: ";
+
+/******************************************************************************/
+
+// Returns a copy of a string with leading and trailing whitespace removed.
+String.prototype.trim = function() {
+ return this.replace(/^\s+/, "").replace(/\s+$/, "");
+}
+
+// Walks the DOM tree starting at a given root element. Returns an
+// array of nodes of the specified type and conforming to the criteria
+// of the given filter function. The filter should return a boolean.
+function getNodesByType(root, type, filter) {
+ var node = root;
+ var nodes = [];
+ var next;
+
+ while (node != null) {
+ if (node.hasChildNodes())
+ node = node.firstChild;
+ else if (node != root && null != (next = node.nextSibling))
+ node = next;
+ else {
+ next = null;
+ for ( ; node != root; node = node.parentNode) {
+ next = node.nextSibling;
+ if (next != null) break;
+ }
+ node = next;
+ }
+ if (node != null && node.nodeType == type && filter(node))
+ nodes.push(node);
+ }
+ return nodes;
+}
+
+// Simulates the innerText property of IE and other browsers.
+// Mozilla/Firefox need this.
+function getInnerText(node) {
+ if (node == null || node.nodeType != 1)
+ return;
+ var text = "";
+ var textnodes = getNodesByType(node, 3, function() { return true; });
+ for (var i = 0; i < textnodes.length; i++)
+ text += textnodes[i].data;
+ return text;
+}
+
+function initExpandableLists() {
+ if (!document.getElementsByTagName) return;
+
+ // Top-level function to accommodate browsers that do not register
+ // a click event when a link is activated by the keyboard.
+ switchNode = function(id) {
+ var node = document.getElementById(id);
+ if (node && /^switch /.test(node.className)) node.onclick();
+ }
+
+ // Top-level function to be assigned as the event handler for the
+ // switch. This could have been bound to the handler as a closure,
+ // but closures are associated with memory leak problems in IE.
+ actuate = function() {
+ var sublist = this.parentNode.getElementsByTagName("ul")[0] ||
+ this.parentNode.getElementsByTagName("ol")[0];
+ if (sublist.style.display == "block") {
+ sublist.style.display = "none";
+ this.firstChild.data = "+";
+ this.className = "switch off";
+ this.title = this.title.replace(OPENED_PREFIX, CLOSED_PREFIX);
+ } else {
+ sublist.style.display = "block";
+ this.firstChild.data = "-";
+ this.className = "switch on";
+ this.title = this.title.replace(CLOSED_PREFIX, OPENED_PREFIX);
+ }
+ return false;
+ }
+
+ // Create switch node from which the others will be cloned.
+ if (typeof document.createElementNS == "function")
+ var template = document.createElementNS(XMLNS, "a");
+ else
+ var template = document.createElement("a");
+ template.appendChild(document.createTextNode(" "));
+
+ var list, i = 0, j = 0;
+ var pattern = new RegExp("(^| )" + CLASS_NAME + "( |$)");
+
+ while ((list = document.getElementsByTagName("ul")[i++]) ||
+ (list = document.getElementsByTagName("ol")[j++]))
+ {
+ // Only lists with the given class name are processed.
+ if (pattern.test(list.className) == false) continue;
+
+ var item, k = 0;
+ while ((item = list.getElementsByTagName("li")[k++])) {
+ var sublist = item.getElementsByTagName("ul")[0] ||
+ item.getElementsByTagName("ol")[0];
+ // No sublist under this list item. Skip it.
+ if (sublist == null) continue;
+
+ // Attempt to determine initial display style of the
+ // sublist so the proper symbol is used.
+ var symbol;
+ switch (sublist.style.display) {
+ case "none" : symbol = "+"; break;
+ case "block": symbol = "-"; break;
+ default:
+ var display = DEFAULT_DISPLAY;
+ if (sublist.currentStyle) {
+ display = sublist.currentStyle.display;
+ } else if (document.defaultView &&
+ document.defaultView.getComputedStyle &&
+ document.defaultView.getComputedStyle(sublist, ""))
+ {
+ var view = document.defaultView;
+ var computed = view.getComputedStyle(sublist, "");
+ display = computed.getPropertyValue("display");
+ }
+ symbol = (display == "none") ? "+" : "-";
+ // Explicitly set the display style to make sure it is
+ // set for the next read. If it is somehow the empty
+ // string, use the default value from the (X)HTML DTD.
+ sublist.style.display = display || "block";
+ break;
+ }
+
+ // This bit attempts to extract some text from the first
+ // child node of the list item to append to the title
+ // attribute of the switch.
+ var child = item.firstChild;
+ var text = "";
+ while (child) {
+ if (child.nodeType == 3 && "" != child.data.trim()) {
+ text = child.data;
+ break;
+ } else if (child.nodeType == 1 &&
+ !/^[ou]l$/i.test(child.tagName))
+ {
+ text = child.innerText || getInnerText(child);
+ break;
+ }
+ child = child.nextSibling;
+ }
+
+ var actuator = template.cloneNode(true);
+ // a reasonably unique ID
+ var uid = "switch" + i + "-" + j + "-" + k;
+ actuator.id = uid;
+ actuator.href = "javascript:switchNode('" + uid + "')";
+ actuator.className = "switch " + ((symbol == "+") ? "off" : "on");
+ actuator.title = ((symbol == "+")
+ ? CLOSED_PREFIX : OPENED_PREFIX) + text.trim();
+ actuator.firstChild.data = symbol;
+ actuator.onclick = actuate;
+ item.insertBefore(actuator, item.firstChild);
+ }
+ }
+}
+
+// Props to Simon Willison:
+// http://simon.incutio.com/archive/2004/05/26/addLoadEvent
+var oldhandler = window.onload;
+window.onload = (typeof oldhandler == "function")
+ ? function() { oldhandler(); initExpandableLists(); } : initExpandableLists;
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/menu_data.js b/upstream/clipper-6.4.2/Documentation/Scripts/menu_data.js
new file mode 100644
index 0000000..7d8f52f
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/menu_data.js
@@ -0,0 +1,21 @@
+td_1 = "Overview"
+td_1_1 = "Library Overview"
+url_1_1 = "Overview/_Body.htm"
+td_1_2 = "Changes"
+url_1_2 = "Overview/Changes.htm"
+td_1_3 = "Example"
+url_1_3 = "Overview/Example.htm"
+td_1_4 = "FAQ"
+url_1_4 = "Overview/FAQ.htm"
+td_1_5 = "Rounding"
+url_1_5 = "Overview/Rounding.htm"
+td_1_6 = "Deprecated"
+url_1_6 = "Overview/Deprecated.htm"
+td_1_7 = "License"
+url_1_7 = "Overview/License.htm"
+
+td_2 = "Internet"
+td_2_1 = "Clipper at SourceForge"
+url_2_1 = "%http://sourceforge.net/projects/polyclipping/"
+td_2_2 = "Clipper at angusj.com"
+url_2_2 = "%http://www.angusj.com/delphi/clipper.php"
diff --git a/upstream/clipper-6.4.2/Documentation/Scripts/menu_script.js b/upstream/clipper-6.4.2/Documentation/Scripts/menu_script.js
new file mode 100644
index 0000000..3185ebe
--- /dev/null
+++ b/upstream/clipper-6.4.2/Documentation/Scripts/menu_script.js
@@ -0,0 +1,130 @@
+
+////////////////////Please leave this notice////////////////////
+//
+// DropDown Menu 1.0
+// By Evgeny Novikov (java@aladin.ru)
+// http://java.skyteam.ru
+// It works only with IE5.0(++) and Netscape6.0(++)
+// Free to use!
+//
+////////////////////Last modified 2002-03-05////////////////////
+
+// Modify following four lines to customize your menu
+var tdColor = "#FFFFFF"; // menu item text color
+var tdBgColor = "#6060A0"; // menu item background color
+var hlColor = "#000000"; // highlight text color
+var hlBgColor = "#9595BD"; // highlight background color
+// After change, modify same values in your *.css file
+
+var md = 250;
+var ti = -1;
+var oTd = new Object;
+oTd = null;
+
+function doMenu(td) {
+ clearTimeout(ti);
+ td.style.backgroundColor = hlBgColor;
+ td.style.color = hlColor;
+ var i;
+ var sT = "";
+ var tda = new Array();
+ tda = td.id.split("_");
+ if (oTd != null) {
+ var tdo = new Array();
+ tdo = oTd.id.split("_");
+ for (i = 1; i < tdo.length; i++) {
+ sT += "_" + tdo[i];
+ if (tdo[i] != tda[i]) {
+ document.getElementById("td" + sT).style.backgroundColor = tdBgColor;
+ document.getElementById("td" + sT).style.color = tdColor;
+ if (document.getElementById("tbl" + sT) != null)
+ document.getElementById("tbl" + sT).style.visibility = "hidden";
+ }
+ }
+ }
+ oTd = td;
+ sT = "tbl";
+ for (i = 1; i < tda.length; i++)
+ sT += "_" + tda[i];
+ if (document.getElementById(sT) != null)
+ document.getElementById(sT).style.visibility = "visible";
+
+}
+
+function clearMenu() {
+ if (oTd != null) {
+ var tdo = new Array();
+ tdo = oTd.id.split("_");
+ var sT = "";
+ for (var i = 1; i < tdo.length; i++) {
+ sT += "_" + tdo[i];
+ document.getElementById("td" + sT).style.backgroundColor = tdBgColor;
+ document.getElementById("td" + sT).style.color = tdColor;
+ if (document.getElementById("tbl" + sT) != null)
+ document.getElementById("tbl" + sT).style.visibility = "hidden";
+ }
+ oTd = null;
+ }
+}
+
+function runMenu(strURL) {
+ if (strURL.charAt(0) == '%')
+ window.open(strURL.substr(1));
+ else
+ location.href = strURL;
+}
+
+var tt = "";
+var sT = "";
+var pT = new Array();
+var tA = new Array();
+
+function getCoord(st) {
+ tA = st.split("_");
+ if (tA.length > 2) {
+ tA = tA.slice(0,-1);
+ tt = tA.join("_");
+ return (document.getElementById("tbl" + tt).offsetTop + document.getElementById("td" + st).offsetTop - 1) + "px;left:" +
+ (document.getElementById("tbl" + tt).offsetLeft + document.getElementById("td" + st).offsetWidth - 2) + "px\">";
+ }
+ return (document.getElementById("mainmenu").offsetTop + document.getElementById("td" + st).offsetHeight - 10) + "px;left:" +
+ (document.getElementById("mainmenu").offsetLeft + document.getElementById("td" + st).offsetLeft + 5) + "px\">";
+}
+
+function isDefined(varname) {
+ return eval("typeof(" + varname + ") != \"undefined\"");
+}
+
+var sH = "