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import re
import gobject
import gtk
import goocanvas
from sugar.util import GObjectSingletonMeta
class IconCache(gobject.GObject):
__metaclass__ = GObjectSingletonMeta
def __init__(self):
gobject.GObject.__init__(self)
self._icons = {}
def _create_icon(self, name, color, size):
theme = gtk.icon_theme_get_default()
info = theme.lookup_icon(name, size, 0)
icon_file = open(info.get_filename(), 'r')
data = icon_file.read()
icon_file.close()
if color != None:
style = '.fill {fill:%s;stroke:%s;}' % (color, color)
data = re.sub('\.fill \{.*\}', style, data)
style = '.shape {stroke:%s;fill:%s;}' % ('black', 'black')
data = re.sub('\.shape \{.*\}', style, data)
style = '.shape-and-fill {fill:%s; stroke:%s;}' % (color, 'black')
data = re.sub('\.shape-and-fill \{.*\}', style, data)
loader = gtk.gdk.pixbuf_loader_new_with_mime_type('image/svg-xml')
loader.set_size(size, size)
loader.write(data)
loader.close()
return loader.get_pixbuf()
def get_icon(self, name, color, size):
key = (name, color, size)
if self._icons.has_key(key):
return self._icons[key]
else:
icon = self._create_icon(name, color, size)
self._icons[key] = icon
return icon
class IconItem(goocanvas.Image):
def __init__(self, icon_name, color, size, **kwargs):
goocanvas.Image.__init__(self, **kwargs)
icon_cache = IconCache()
pixbuf = icon_cache.get_icon(icon_name, color, size)
self.set_property('pixbuf', pixbuf)
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