1 files changed, 99 insertions, 0 deletions
diff --git a/share/extensions/ink2canvas.py b/share/extensions/ink2canvas.py
new file mode 100755
index 0000000..ea8ad69
--- /dev/null
+++ b/share/extensions/ink2canvas.py
@@ -0,0 +1,99 @@
+#!/usr/bin/env python
+# coding=utf-8
+# Copyright (C) 2011 Karlisson Bezerra <contact@hacktoon.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+"""
+Save an SVG file into an html canvas file.
+"""
+
+import inkex
+
+import ink2canvas_lib.svg as svg
+from ink2canvas_lib.canvas import Canvas
+
+
+class Html5Canvas(inkex.OutputExtension):
+    """Creates a canvas output"""
+
+    def save(self, stream):
+        svg_root = self.document.getroot()
+        width = self.svg.viewbox_width
+        height = self.svg.viewbox_height
+        canvas = Canvas(self, width, height)
+        self.walk_tree(svg_root, canvas)
+        stream.write(canvas.output().encode("utf-8"))
+
+    def get_gradient_defs(self, elem):
+        """Return the gradient information"""
+        url_id = elem.get_gradient_href()
+        # get the gradient element
+        gradient = self.svg.getElementById(url_id)
+        # get the color stops
+        gstops = gradient.href
+        colors = []
+        for stop in gstops:
+            colors.append(stop.style)
+        if gradient.get("r"):
+            return svg.RadialGradientDef(gradient, colors)
+        return svg.LinearGradientDef(gradient, colors)
+
+    @staticmethod
+    def _shape_from_node(node, canvas):
+        """
+        Make a canvas shape object for the given node. Returns `None` if
+        the node is not an SVG shape element.
+        @rtype svg.AbstractShape or NoneType
+        """
+        try:
+            prefix, _brace_, command = node.tag.partition("}")
+        except AttributeError:
+            return None  # skip comments
+        if prefix != "{http://www.w3.org/2000/svg":
+            return None
+
+        # makes pylint happy
+        assert _brace_ == "}"
+
+        cls = getattr(svg, command.capitalize(), None)
+
+        if not (isinstance(cls, type) and issubclass(cls, svg.AbstractShape)):
+            return None
+
+        return cls(command, node, canvas)
+
+    def walk_tree(self, root, canvas):
+        """Walk throug the whole svg tree"""
+        for node in root:
+            elem = self._shape_from_node(node, canvas)
+            if elem is None:
+                continue
+            gradient = None
+            if elem.has_gradient():
+                gradient = self.get_gradient_defs(elem)
+            elem.start(gradient)
+            try:
+                elem.draw()
+            except ValueError as error:
+                # print out the reason if any element can not be exported
+                canvas.write("// " + str(error))
+                continue
+            self.walk_tree(node, canvas)
+            elem.end()
+
+
+if __name__ == "__main__":
+    Html5Canvas().run()