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diff --git a/share/extensions/ink2canvas.py b/share/extensions/ink2canvas.py
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+#!/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()