ink2canvas.py revision 9f5fa9df7a370b2041854ddc23b55b786b538478
#!/usr/bin/env python
'''
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'''
import inkex
from ink2canvas.canvas import Canvas
import ink2canvas.svg as svg
log = inkex.debug #alias to debug method
class Ink2Canvas(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.canvas = None
def output(self):
import sys
sys.stdout.write(self.canvas.output())
def get_tag_name(self, node):
# remove namespace part from "{http://www.w3.org/2000/svg}elem"
return node.tag.split("}")[1]
def get_gradient_defs(self, elem):
url_id = elem.get_gradient_href()
# get the gradient element
gradient = self.xpathSingle("//*[@id='%s']" % url_id)
# get the color stops
url_stops = gradient.get(inkex.addNS("href", "xlink"))
gstops = self.xpathSingle("//svg:linearGradient[@id='%s']" % url_stops[1:])
colors = []
for stop in gstops:
colors.append(stop.get("style"))
if gradient.get("r"):
return svg.RadialGradientDef(gradient, colors)
else:
return svg.LinearGradientDef(gradient, colors)
def get_clip_defs(self, elem):
if elem.has_clip():
pass
return
def walk_tree(self, root):
for node in root:
tag = self.get_tag_name(node)
class_name = tag.capitalize()
if not hasattr(svg, class_name):
continue
gradient = None
clip = None
# creates a instance of 'elem'
# similar to 'elem = Rect(tag, node, ctx)'
elem = getattr(svg, class_name)(tag, node, self.canvas)
if elem.has_gradient():
gradient = self.get_gradient_defs(elem)
elem.start(gradient)
elem.draw()
self.walk_tree(node)
elem.end()
def effect(self):
"""Applies the effect"""
svg_root = self.document.getroot()
width = inkex.unittouu(svg_root.get("width"))
height = inkex.unittouu(svg_root.get("height"))
self.canvas = Canvas(width, height)
self.walk_tree(svg_root)
if __name__ == "__main__":
ink = Ink2Canvas()
ink.affect()