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# Copyright (C) 2006-2007 Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import os
import gobject
import gtk
import re
from sugar.graphics.style import Color
class Icon(gtk.Image):
__gtype_name__ = 'SugarIcon'
__gproperties__ = {
'xo-color' : (object, None, None,
gobject.PARAM_WRITABLE),
'fill-color' : (object, None, None,
gobject.PARAM_READWRITE),
'stroke-color' : (object, None, None,
gobject.PARAM_READWRITE)
}
def __init__(self, name, **kwargs):
self._constructed = False
self._fill_color = None
self._stroke_color = None
self._icon_name = name
self._theme = gtk.icon_theme_get_default()
self._data = None
gobject.GObject.__init__(self, **kwargs)
self._constructed = True
self._update_icon()
def _get_pixbuf(self, data, width, height):
loader = gtk.gdk.PixbufLoader('svg')
loader.set_size(width, height)
loader.write(data, len(data))
loader.close()
return loader.get_pixbuf()
def _read_icon_data(self, icon_name):
filename = self._get_real_name(icon_name)
icon_file = open(filename, 'r')
data = icon_file.read()
icon_file.close()
return data
def _update_normal_icon(self):
icon_theme = gtk.icon_theme_get_for_screen(self.get_screen())
icon_set = gtk.IconSet()
if icon_theme.has_icon(self._icon_name):
source = gtk.IconSource()
source.set_icon_name(self._icon_name)
icon_set.add_source(source)
inactive_name = self._icon_name + '-inactive'
if icon_theme.has_icon(inactive_name):
source = gtk.IconSource()
source.set_icon_name(inactive_name)
source.set_state(gtk.STATE_INSENSITIVE)
icon_set.add_source(source)
self.props.icon_set = icon_set
def _update_icon(self):
if not self._constructed:
return
if not self._fill_color and not self._stroke_color:
self._update_normal_icon()
return
if not self._data:
data = self._read_icon_data(self._icon_name)
else:
data = self._data
if self._fill_color:
entity = '<!ENTITY fill_color "%s">' % self._fill_color
data = re.sub('<!ENTITY fill_color .*>', entity, data)
if self._stroke_color:
entity = '<!ENTITY stroke_color "%s">' % self._stroke_color
data = re.sub('<!ENTITY stroke_color .*>', entity, data)
self._data = data
# Redraw pixbuf
[w, h] = gtk.icon_size_lookup(self.props.icon_size)
pixbuf = self._get_pixbuf(self._data, w, h)
self.set_from_pixbuf(pixbuf)
def _get_real_name(self, name):
info = self._theme.lookup_icon(name, self.props.icon_size, 0)
if not info:
raise ValueError("Icon '" + name + "' not found.")
fname = info.get_filename()
del info
return fname
def do_set_property(self, pspec, value):
if pspec.name == 'xo-color':
self.props.fill_color = value.get_fill_color()
self.props.stroke_color = value.get_stroke_color()
elif pspec.name == 'fill-color':
self._fill_color = value
self._update_icon()
elif pspec.name == 'stroke-color':
self._stroke_color = value
self._update_icon()
else:
gtk.Image.do_set_property(self, pspec, value)
if pspec.name == 'icon-size':
self._update_icon()
def do_get_property(self, pspec):
if pspec.name == 'fill-color':
return self._fill_color
elif pspec.name == 'stroke-color':
return self._stroke_color
else:
return gtk.Image.do_get_property(self, pspec)
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