Merge pull request #5 from hamiltonkibbe/merge-curtacircuitos

Merge curtacircuitos

1 files changed, 166 insertions, 253 deletions

diff --git a/gerber/render/cairo_backend.py b/gerber/render/cairo_backend.py
index 8c7232f..31a1e77 100644
--- a/gerber/render/cairo_backend.py
+++ b/gerber/render/cairo_backend.py
@@ -12,29 +12,25 @@
 # Unless required by applicable law or agreed to in writing, software

 # distributed under the License is distributed on an "AS IS" BASIS,

 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
+

+# See the License for the specific language governing permissions and

+# limitations under the License.

+

 try:

     import cairo

 except ImportError:

     import cairocffi as cairo

-    
-import math

-from operator import mul, div

-import tempfile

 

-import cairocffi as cairo

+from operator import mul

+import tempfile

+import copy

+import os

 

-from ..primitives import *

 from .render import GerberContext, RenderSettings

 from .theme import THEMES

+from ..primitives import *

 

-try:

-    from cStringIO import StringIO

-except(ImportError):

-    from io import StringIO

+from io import BytesIO

 

 

 class GerberCairoContext(GerberContext):

@@ -43,15 +39,16 @@ class GerberCairoContext(GerberContext):
         super(GerberCairoContext, self).__init__()

         self.scale = (scale, scale)

         self.surface = None

+        self.surface_buffer = None

         self.ctx = None

         self.active_layer = None

+        self.active_matrix = None

         self.output_ctx = None

-        self.bg = False

-        self.mask = None

-        self.mask_ctx = None

+        self.has_bg = False

         self.origin_in_inch = None

         self.size_in_inch = None

         self._xform_matrix = None

+        self._render_count = 0

 

     @property

     def origin_in_pixels(self):

@@ -72,10 +69,8 @@ class GerberCairoContext(GerberContext):
         self.size_in_inch = size_in_inch if self.size_in_inch is None else self.size_in_inch

         if (self.surface is None) or new_surface:

             self.surface_buffer = tempfile.NamedTemporaryFile()

-            self.surface = cairo.SVGSurface(

-                self.surface_buffer, size_in_pixels[0], size_in_pixels[1])

+            self.surface = cairo.SVGSurface(self.surface_buffer, size_in_pixels[0], size_in_pixels[1])

             self.output_ctx = cairo.Context(self.surface)

-            self.output_ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)

             self.output_ctx.scale(1, -1)

             self.output_ctx.translate(-(origin_in_inch[0] * self.scale[0]),

                                       (-origin_in_inch[1] * self.scale[0]) - size_in_pixels[1])

@@ -83,20 +78,48 @@ class GerberCairoContext(GerberContext):
                                           x0=-self.origin_in_pixels[0],

                                           y0=self.size_in_pixels[1] + self.origin_in_pixels[1])

 

-    def render_layers(self, layers, filename, theme=THEMES['default']):

+    def render_layer(self, layer, filename=None, settings=None, bgsettings=None,

+                     verbose=False):

+        if settings is None:

+            settings = THEMES['default'].get(layer.layer_class, RenderSettings())

+        if bgsettings is None:

+            bgsettings = THEMES['default'].get('background', RenderSettings())

+

+        if self._render_count == 0:

+            if verbose:

+                print('[Render]: Rendering Background.')

+            self.clear()

+            self.set_bounds(layer.bounds)

+            self._paint_background(bgsettings)

+        if verbose:

+            print('[Render]: Rendering {} Layer.'.format(layer.layer_class))

+        self._render_count += 1

+        self._render_layer(layer, settings)

+        if filename is not None:

+            self.dump(filename, verbose)

+

+    def render_layers(self, layers, filename, theme=THEMES['default'],

+                      verbose=False):

         """ Render a set of layers

         """

-        self.set_bounds(layers[0].bounds, True)

-        self._paint_background(True)

-

+        self.clear()

+        bgsettings = theme['background']

         for layer in layers:

-            self._render_layer(layer, theme)

-        self.dump(filename)

+            settings = theme.get(layer.layer_class, RenderSettings())

+            self.render_layer(layer, settings=settings, bgsettings=bgsettings,

+                              verbose=verbose)

+        self.dump(filename, verbose)

 

-    def dump(self, filename):

+    def dump(self, filename=None, verbose=False):

         """ Save image as `filename`

         """

-        if filename and filename.lower().endswith(".svg"):

+        try:

+            is_svg = os.path.splitext(filename.lower())[1] == '.svg'

+        except:

+            is_svg = False

+        if verbose:

+            print('[Render]: Writing image to {}'.format(filename))

+        if is_svg:

             self.surface.finish()

             self.surface_buffer.flush()

             with open(filename, "w") as f:

@@ -107,9 +130,9 @@ class GerberCairoContext(GerberContext):
             return self.surface.write_to_png(filename)

 

     def dump_str(self):

-        """ Return a string containing the rendered image.

+        """ Return a byte-string containing the rendered image.

         """

-        fobj = StringIO()

+        fobj = BytesIO()

         self.surface.write_to_png(fobj)

         return fobj.getvalue()

 

@@ -120,54 +143,40 @@ class GerberCairoContext(GerberContext):
         self.surface_buffer.flush()

         return self.surface_buffer.read()

 

-    def _render_layer(self, layer, theme=THEMES['default']):

-        settings = theme.get(layer.layer_class, RenderSettings())

-        self.color = settings.color

-        self.alpha = settings.alpha

-        self.invert = settings.invert

+    def clear(self):

+        self.surface = None

+        self.output_ctx = None

+        self.has_bg = False

+        self.origin_in_inch = None

+        self.size_in_inch = None

+        self._xform_matrix = None

+        self._render_count = 0

+        if hasattr(self.surface_buffer, 'close'):

+            self.surface_buffer.close()

+            self.surface_buffer = None

 

+    def _render_layer(self, layer, settings):

+        self.invert = settings.invert

         # Get a new clean layer to render on

-        self._new_render_layer()

-        if settings.mirror:

-            raise Warning('mirrored layers aren\'t supported yet...')

+        self._new_render_layer(mirror=settings.mirror)

         for prim in layer.primitives:

             self.render(prim)

         # Add layer to image

-        self._flatten()

+        self._flatten(settings.color, settings.alpha)

 

     def _render_line(self, line, color):

         start = [pos * scale for pos, scale in zip(line.start, self.scale)]

         end = [pos * scale for pos, scale in zip(line.end, self.scale)]

-        if not self.invert:

-<<<<<<< HEAD
-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                             if line.level_polarity == "dark"

-                             else cairo.OPERATOR_CLEAR)
-=======
-            self.ctx.set_source_rgba(*color, alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                                  if line.level_polarity == 'dark'

-                                  else cairo.OPERATOR_CLEAR)

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if line.level_polarity == 'dark' and

+                              (not self.invert) else cairo.OPERATOR_CLEAR)

         if isinstance(line.aperture, Circle):

-<<<<<<< HEAD
-            width = line.aperture.diameter
-=======
             width = line.aperture.diameter

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
             self.ctx.set_line_width(width * self.scale[0])

             self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)

             self.ctx.move_to(*start)

             self.ctx.line_to(*end)

-<<<<<<< HEAD
-            self.ctx.stroke()
-=======
             self.ctx.stroke()

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
         elif isinstance(line.aperture, Rectangle):

             points = [self.scale_point(x) for x in line.vertices]

             self.ctx.set_line_width(0)

@@ -190,61 +199,24 @@ class GerberCairoContext(GerberContext):
             width = arc.aperture.diameter if arc.aperture.diameter != 0 else 0.001

         else:

             width = max(arc.aperture.width, arc.aperture.height, 0.001)

-        

-        if not self.invert:

-<<<<<<< HEAD
-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                             if arc.level_polarity == "dark"\

-                             else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-                

-=======
-            self.ctx.set_source_rgba(*color, alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                                  if arc.level_polarity == 'dark'

-                                  else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
+

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if arc.level_polarity == 'dark' and

+                                 (not self.invert) else cairo.OPERATOR_CLEAR)

         self.ctx.set_line_width(width * self.scale[0])

         self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)

         self.ctx.move_to(*start)  # You actually have to do this...

         if arc.direction == 'counterclockwise':

-<<<<<<< HEAD
-            self.ctx.arc(center[0], center[1], radius, angle1, angle2)

-        else:

-            self.ctx.arc_negative(center[0], center[1], radius, angle1, angle2)

-=======
             self.ctx.arc(*center, radius=radius, angle1=angle1, angle2=angle2)

         else:

             self.ctx.arc_negative(*center, radius=radius,

                                   angle1=angle1, angle2=angle2)

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
         self.ctx.move_to(*end)  # ...lame

 

     def _render_region(self, region, color):

-        if not self.invert:

-<<<<<<< HEAD
-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                                  if region.level_polarity == "dark"

-=======
-            self.ctx.set_source_rgba(*color, alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                                  if region.level_polarity == 'dark'

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
-                                  else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-<<<<<<< HEAD
-

-=======
->>>>>>> 5476da8... Fix a bunch of rendering bugs.
+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if region.level_polarity == 'dark' and

+                              (not self.invert) else cairo.OPERATOR_CLEAR)

         self.ctx.set_line_width(0)

         self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)

         self.ctx.move_to(*self.scale_point(region.primitives[0].start))

@@ -262,71 +234,41 @@ class GerberCairoContext(GerberContext):
                 else:

                     self.ctx.arc_negative(*center, radius=radius,

                                           angle1=angle1, angle2=angle2)

-<<<<<<< HEAD
-        self.ctx.fill()


+        self.ctx.fill()

+

     def _render_circle(self, circle, color):

         center = self.scale_point(circle.position)

-        if not self.invert:

-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                                  if circle.level_polarity == "dark"

-                                  else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-            

-        if circle.hole_diameter > 0:

-            self.ctx.push_group()

-

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if circle.level_polarity == 'dark' and

+                                 (not self.invert) else cairo.OPERATOR_CLEAR)

         self.ctx.set_line_width(0)

-        self.ctx.arc(center[0], center[1], radius=circle.radius * self.scale[0], angle1=0, angle2=2 * math.pi)

+        self.ctx.arc(*center, radius=(circle.radius * self.scale[0]), angle1=0,

+                     angle2=(2 * math.pi))

         self.ctx.fill()

-        

+

         if circle.hole_diameter > 0:

             # Render the center clear

 

             self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)        

-            self.ctx.arc(center[0], center[1], radius=circle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)

+            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

+            self.ctx.arc(center[0], center[1],

+                         radius=circle.hole_radius * self.scale[0], angle1=0,

+                         angle2=2 * math.pi)

             self.ctx.fill()

-            

-            self.ctx.pop_group_to_source()

-            self.ctx.paint_with_alpha(1)
-=======
-        self.ctx.fill()

 

-    def _render_circle(self, circle, color):

-        center = self.scale_point(circle.position)

-        if not self.invert:

-            self.ctx.set_source_rgba(*color, alpha=self.alpha)

-            self.ctx.set_operator(

-                cairo.OPERATOR_OVER if circle.level_polarity == 'dark' else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-        self.ctx.set_line_width(0)

-        self.ctx.arc(*center, radius=circle.radius *

-                     self.scale[0], angle1=0, angle2=2 * math.pi)

-        self.ctx.fill()

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
 

     def _render_rectangle(self, rectangle, color):

         lower_left = self.scale_point(rectangle.lower_left)

-        width, height = tuple([abs(coord) for coord in self.scale_point((rectangle.width, rectangle.height))])

-<<<<<<< HEAD
-        

-        if not self.invert:

-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER

-                             if rectangle.level_polarity == "dark"

-                             else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-            

+        width, height = tuple([abs(coord) for coord in

+                               self.scale_point((rectangle.width,

+                                                 rectangle.height))])

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if rectangle.level_polarity == 'dark' and

+                              (not self.invert) else cairo.OPERATOR_CLEAR)

+

         if rectangle.rotation != 0:

             self.ctx.save()

-            

+

             center = map(mul, rectangle.position, self.scale)

             matrix = cairo.Matrix()

             matrix.translate(center[0], center[1])

@@ -335,128 +277,107 @@ class GerberCairoContext(GerberContext):
             lower_left[1] = lower_left[1] - center[1]

             matrix.rotate(rectangle.rotation)

             self.ctx.transform(matrix)

-            

+

         if rectangle.hole_diameter > 0:

             self.ctx.push_group()

 

         self.ctx.set_line_width(0)

-        self.ctx.rectangle(lower_left[0], lower_left[1], width, height)

+        self.ctx.rectangle(*lower_left, width=width, height=height)

         self.ctx.fill()

-        

+

         if rectangle.hole_diameter > 0:

             # Render the center clear

             self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

+            self.ctx.set_operator(cairo.OPERATOR_CLEAR

+                                  if rectangle.level_polarity == 'dark'

+                                     and (not self.invert)

+                                  else cairo.OPERATOR_SOURCE)

             center = map(mul, rectangle.position, self.scale)

-            self.ctx.arc(center[0], center[1], radius=rectangle.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)

+            self.ctx.arc(center[0], center[1],

+                         radius=rectangle.hole_radius * self.scale[0], angle1=0,

+                         angle2=2 * math.pi)

             self.ctx.fill()

-            

-            self.ctx.pop_group_to_source()

-            self.ctx.paint_with_alpha(1)

-        

-        if rectangle.rotation != 0:

-            self.ctx.restore()
-=======
 

-        if not self.invert:

-            self.ctx.set_source_rgba(*color, alpha=self.alpha)

-            self.ctx.set_operator(

-                cairo.OPERATOR_OVER if rectangle.level_polarity == 'dark' else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-        self.ctx.set_line_width(0)

-        self.ctx.rectangle(*lower_left, width=width, height=height)

-        self.ctx.fill()

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
+        if rectangle.rotation != 0:

+            self.ctx.restore()

 

     def _render_obround(self, obround, color):

-        

-        if not self.invert:

-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER if obround.level_polarity == "dark" else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-            

         if obround.hole_diameter > 0:

             self.ctx.push_group()

 

         self._render_circle(obround.subshapes['circle1'], color)

         self._render_circle(obround.subshapes['circle2'], color)

         self._render_rectangle(obround.subshapes['rectangle'], color)

-        

+

         if obround.hole_diameter > 0:

             # Render the center clear

             self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)

             self.ctx.set_operator(cairo.OPERATOR_CLEAR)

             center = map(mul, obround.position, self.scale)

-            self.ctx.arc(center[0], center[1], radius=obround.hole_radius * self.scale[0], angle1=0, angle2=2 * math.pi)

+            self.ctx.arc(center[0], center[1],

+                         radius=obround.hole_radius * self.scale[0], angle1=0,

+                         angle2=2 * math.pi)

             self.ctx.fill()

-            

+

             self.ctx.pop_group_to_source()

             self.ctx.paint_with_alpha(1)

 

+

     def _render_polygon(self, polygon, color):

-        

+

         # TODO Ths does not handle rotation of a polygon

-        if not self.invert:

-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER if polygon.level_polarity == "dark" else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

-            

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if polygon.level_polarity == 'dark' and

+                                 (not self.invert) else cairo.OPERATOR_CLEAR)

         if polygon.hole_radius > 0:

             self.ctx.push_group()

-        

-        vertices = polygon.vertices 

+

+        vertices = polygon.vertices

 

         self.ctx.set_line_width(0)

         self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)

-        

+

         # Start from before the end so it is easy to iterate and make sure it is closed

         self.ctx.move_to(*map(mul, vertices[-1], self.scale))

         for v in vertices:

             self.ctx.line_to(*map(mul, v, self.scale))

 

         self.ctx.fill()

-        

+

         if polygon.hole_radius > 0:

             # Render the center clear

             center = tuple(map(mul, polygon.position, self.scale))

             self.ctx.set_source_rgba(color[0], color[1], color[2], self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)        

+            self.ctx.set_operator(cairo.OPERATOR_CLEAR

+                                  if polygon.level_polarity == 'dark'

+                                     and (not self.invert)

+                                  else cairo.OPERATOR_SOURCE)

             self.ctx.set_line_width(0)

-            self.ctx.arc(center[0], center[1], polygon.hole_radius * self.scale[0], 0, 2 * math.pi)

+            self.ctx.arc(center[0],

+                         center[1],

+                         polygon.hole_radius * self.scale[0], 0, 2 * math.pi)

             self.ctx.fill()

-            

-            self.ctx.pop_group_to_source()

-            self.ctx.paint_with_alpha(1)

 

     def _render_drill(self, circle, color=None):

         color = color if color is not None else self.drill_color

         self._render_circle(circle, color)

-        

+

     def _render_slot(self, slot, color):

         start = map(mul, slot.start, self.scale)

         end = map(mul, slot.end, self.scale)

-        

+

         width = slot.diameter

-        

-        if not self.invert:

-            self.ctx.set_source_rgba(color[0], color[1], color[2], alpha=self.alpha)

-            self.ctx.set_operator(cairo.OPERATOR_OVER if slot.level_polarity == "dark" else cairo.OPERATOR_CLEAR)

-        else:

-            self.ctx.set_source_rgba(0.0, 0.0, 0.0, 1.0)

-            self.ctx.set_operator(cairo.OPERATOR_CLEAR)

+

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if slot.level_polarity == 'dark' and

+                                 (not self.invert) else cairo.OPERATOR_CLEAR)

 

         self.ctx.set_line_width(width * self.scale[0])

         self.ctx.set_line_cap(cairo.LINE_CAP_ROUND)

         self.ctx.move_to(*start)

         self.ctx.line_to(*end)

         self.ctx.stroke()

-        

+

     def _render_amgroup(self, amgroup, color):

         self.ctx.push_group()

         for primitive in amgroup.primitives:

@@ -465,64 +386,56 @@ class GerberCairoContext(GerberContext):
         self.ctx.paint_with_alpha(1)

 

     def _render_test_record(self, primitive, color):

-        position = [pos + origin for pos, origin in zip(primitive.position, self.origin_in_inch)]

-        self.ctx.set_operator(cairo.OPERATOR_OVER)

+        position = [pos + origin for pos, origin in

+                    zip(primitive.position, self.origin_in_inch)]

         self.ctx.select_font_face(

             'monospace', cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)

         self.ctx.set_font_size(13)

         self._render_circle(Circle(position, 0.015), color)

-        self.ctx.set_source_rgba(*color, alpha=self.alpha)

-        self.ctx.set_operator(

-            cairo.OPERATOR_OVER if primitive.level_polarity == 'dark' else cairo.OPERATOR_CLEAR)

-        self.ctx.move_to(*[self.scale[0] * (coord + 0.015)

-                           for coord in position])

+        self.ctx.set_operator(cairo.OPERATOR_SOURCE

+                              if primitive.level_polarity == 'dark' and

+                              (not self.invert) else cairo.OPERATOR_CLEAR)

+        self.ctx.move_to(*[self.scale[0] * (coord + 0.015) for coord in position])

         self.ctx.scale(1, -1)

         self.ctx.show_text(primitive.net_name)

-        self.ctx.scale(1, -1)
+        self.ctx.scale(1, -1)

 

-    def _new_render_layer(self, color=None):

+    def _new_render_layer(self, color=None, mirror=False):

         size_in_pixels = self.scale_point(self.size_in_inch)

+        matrix = copy.copy(self._xform_matrix)

         layer = cairo.SVGSurface(None, size_in_pixels[0], size_in_pixels[1])

         ctx = cairo.Context(layer)

-        ctx.set_fill_rule(cairo.FILL_RULE_EVEN_ODD)

         ctx.scale(1, -1)

         ctx.translate(-(self.origin_in_inch[0] * self.scale[0]),

-                           (-self.origin_in_inch[1] * self.scale[0])

-                           - size_in_pixels[1])

+                      (-self.origin_in_inch[1] * self.scale[0]) - size_in_pixels[1])

         if self.invert:

             ctx.set_operator(cairo.OPERATOR_OVER)

-            ctx.set_source_rgba(*self.color, alpha=self.alpha)

             ctx.paint()

+        if mirror:

+            matrix.xx = -1.0

+            matrix.x0 = self.origin_in_pixels[0] + self.size_in_pixels[0]

         self.ctx = ctx

         self.active_layer = layer

+        self.active_matrix = matrix

 

-    def _flatten(self):

-        self.output_ctx.set_operator(cairo.OPERATOR_OVER)

-<<<<<<< HEAD
-        ptn = cairo.SurfacePattern(self.active_layer)
-=======
+    def _flatten(self, color=None, alpha=None):

+        color = color if color is not None else self.color

+        alpha = alpha if alpha is not None else self.alpha

         ptn = cairo.SurfacePattern(self.active_layer)

->>>>>>> 5476da8... Fix a bunch of rendering bugs.
-        ptn.set_matrix(self._xform_matrix)

-        self.output_ctx.set_source(ptn)

-        self.output_ctx.paint()

+        ptn.set_matrix(self.active_matrix)

+        self.output_ctx.set_source_rgba(*color, alpha=alpha)

+        self.output_ctx.mask(ptn)

         self.ctx = None

         self.active_layer = None

-

-    def _paint_background(self, force=False):

-        if (not self.bg) or force:
-            self.bg = True

-            self.output_ctx.set_operator(cairo.OPERATOR_OVER)

-<<<<<<< HEAD
-            self.output_ctx.set_source_rgba(self.background_color[0], self.background_color[1], self.background_color[2], alpha=1.0)

-            self.output_ctx.paint()

-

-    def scale_point(self, point):

-        return tuple([coord * scale for coord, scale in zip(point, self.scale)])

-=======
-            self.output_ctx.set_source_rgba(*self.background_color, alpha=1.0)

+        self.active_matrix = None

+

+    def _paint_background(self, settings=None):

+        color = settings.color if settings is not None else self.background_color

+        alpha = settings.alpha if settings is not None else 1.0

+        if not self.has_bg:

+            self.has_bg = True

+            self.output_ctx.set_source_rgba(*color, alpha=alpha)

             self.output_ctx.paint()

 

     def scale_point(self, point):

         return tuple([coord * scale for coord, scale in zip(point, self.scale)])

->>>>>>> 5476da8... Fix a bunch of rendering bugs.