Repo re-org, make gerberex tests run

1 files changed, 246 insertions, 0 deletions

diff --git a/gerbonara/gerber/render/render.py b/gerbonara/gerber/render/render.py
new file mode 100644
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+++ b/gerbonara/gerber/render/render.py
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+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# copyright 2014 Hamilton Kibbe <ham@hamiltonkib.be>
+# Modified from code by Paulo Henrique Silva <ph.silva@gmail.com>
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# 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.
+"""
+Rendering
+============
+**Gerber (RS-274X) and Excellon file rendering**
+
+Render Gerber and Excellon files to a variety of formats. The render module
+currently supports SVG rendering using the `svgwrite` library.
+"""
+
+
+from ..primitives import *
+from ..gerber_statements import (CommentStmt, UnknownStmt, EofStmt, ParamStmt,
+                                 CoordStmt, ApertureStmt, RegionModeStmt,
+                                 QuadrantModeStmt,)
+
+
+class GerberContext(object):
+    """ Gerber rendering context base class
+
+    Provides basic functionality and API for rendering gerber files.  Medium-
+    specific renderers should subclass GerberContext and implement the drawing
+    functions. Colors are stored internally as 32-bit RGB and may need to be
+    converted to a native format in the rendering subclass.
+
+    Attributes
+    ----------
+    units : string
+        Measurement units. 'inch' or 'metric'
+
+    color : tuple (<float>, <float>, <float>)
+        Color used for rendering as a tuple of normalized (red, green, blue)
+        values.
+
+    drill_color : tuple (<float>, <float>, <float>)
+        Color used for rendering drill hits. Format is the same as for `color`.
+
+    background_color : tuple (<float>, <float>, <float>)
+        Color of the background. Used when exposing areas in 'clear' level
+        polarity mode. Format is the same as for `color`.
+
+    alpha : float
+        Rendering opacity. Between 0.0 (transparent) and 1.0 (opaque.)
+    """
+
+    def __init__(self, units='inch'):
+        self._units = units
+        self._color = (0.7215, 0.451, 0.200)
+        self._background_color = (0.0, 0.0, 0.0)
+        self._drill_color = (0.0, 0.0, 0.0)
+        self._alpha = 1.0
+        self._invert = False
+        self.ctx = None
+
+    @property
+    def units(self):
+        return self._units
+
+    @units.setter
+    def units(self, units):
+        if units not in ('inch', 'metric'):
+            raise ValueError('Units may be "inch" or "metric"')
+        self._units = units
+
+    @property
+    def color(self):
+        return self._color
+
+    @color.setter
+    def color(self, color):
+        if len(color) != 3:
+            raise TypeError('Color must be a tuple of R, G, and B values')
+        for c in color:
+            if c < 0 or c > 1:
+                raise ValueError('Channel values must be between 0.0 and 1.0')
+        self._color = color
+
+    @property
+    def drill_color(self):
+        return self._drill_color
+
+    @drill_color.setter
+    def drill_color(self, color):
+        if len(color) != 3:
+            raise TypeError('Drill color must be a tuple of R, G, and B values')
+        for c in color:
+            if c < 0 or c > 1:
+                raise ValueError('Channel values must be between 0.0 and 1.0')
+        self._drill_color = color
+
+    @property
+    def background_color(self):
+        return self._background_color
+
+    @background_color.setter
+    def background_color(self, color):
+        if len(color) != 3:
+            raise TypeError('Background color must be a tuple of R, G, and B values')
+        for c in color:
+            if c < 0 or c > 1:
+                raise ValueError('Channel values must be between 0.0 and 1.0')
+        self._background_color = color
+
+    @property
+    def alpha(self):
+        return self._alpha
+
+    @alpha.setter
+    def alpha(self, alpha):
+        if alpha < 0 or alpha > 1:
+            raise ValueError('Alpha must be between 0.0 and 1.0')
+        self._alpha = alpha
+
+    @property
+    def invert(self):
+        return self._invert
+
+    @invert.setter
+    def invert(self, invert):
+        self._invert = invert
+
+    def render(self, primitive):
+        if not primitive:
+            return
+
+        self.pre_render_primitive(primitive)
+
+        color = self.color
+        if isinstance(primitive, Line):
+            self._render_line(primitive, color)
+        elif isinstance(primitive, Arc):
+            self._render_arc(primitive, color)
+        elif isinstance(primitive, Region):
+            self._render_region(primitive, color)
+        elif isinstance(primitive, Circle):
+            self._render_circle(primitive, color)
+        elif isinstance(primitive, Rectangle):
+            self._render_rectangle(primitive, color)
+        elif isinstance(primitive, Obround):
+            self._render_obround(primitive, color)
+        elif isinstance(primitive, Polygon):
+            self._render_polygon(primitive, color)
+        elif isinstance(primitive, Drill):
+            self._render_drill(primitive, self.color)
+        elif isinstance(primitive, Slot):
+            self._render_slot(primitive, self.color)
+        elif isinstance(primitive, AMGroup):
+            self._render_amgroup(primitive, color)
+        elif isinstance(primitive, Outline):
+            self._render_region(primitive, color)
+        elif isinstance(primitive, TestRecord):
+            self._render_test_record(primitive, color)
+
+        self.post_render_primitive(primitive)
+
+    def set_bounds(self, bounds, *args, **kwargs):
+        """Called by the renderer to set the extents of the file to render.
+
+        Parameters
+        ----------
+        bounds: Tuple[Tuple[float, float], Tuple[float, float]]
+            ( (x_min, x_max), (y_min, y_max)
+        """
+        pass
+
+    def paint_background(self):
+        pass
+
+    def new_render_layer(self):
+        pass
+
+    def flatten(self):
+        pass
+
+    def pre_render_primitive(self, primitive):
+        """
+        Called before rendering a primitive. Use the callback to perform some action before rendering
+        a primitive, for example adding a comment.
+        """
+        return
+
+    def post_render_primitive(self, primitive):
+        """
+        Called after rendering a primitive. Use the callback to perform some action after rendering
+        a primitive
+        """
+        return
+
+
+    def _render_line(self, primitive, color):
+        pass
+
+    def _render_arc(self, primitive, color):
+        pass
+
+    def _render_region(self, primitive, color):
+        pass
+
+    def _render_circle(self, primitive, color):
+        pass
+
+    def _render_rectangle(self, primitive, color):
+        pass
+
+    def _render_obround(self, primitive, color):
+        pass
+
+    def _render_polygon(self, primitive, color):
+        pass
+
+    def _render_drill(self, primitive, color):
+        pass
+
+    def _render_slot(self, primitive, color):
+        pass
+
+    def _render_amgroup(self, primitive, color):
+        pass
+
+    def _render_test_record(self, primitive, color):
+        pass
+
+
+class RenderSettings(object):
+    def __init__(self, color=(0.0, 0.0, 0.0), alpha=1.0, invert=False,
+                 mirror=False):
+        self.color = color
+        self.alpha = alpha
+        self.invert = invert
+        self.mirror = mirror