# Copyright (C) 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.

"""
STABLE.
"""

import gobject
import gtk

from sugar.graphics.icon import Icon
from sugar.graphics.palette import Palette, ToolInvoker

class ToggleToolButton(gtk.ToggleToolButton):
    __gtype_name__ = "SugarToggleToolButton"

    def __init__(self, named_icon=None):
        gtk.ToggleToolButton.__init__(self)

        self._palette_invoker = ToolInvoker(self)
        self.set_named_icon(named_icon)

        self.connect('destroy', self.__destroy_cb)

    def __destroy_cb(self, icon):
        if self._palette_invoker is not None:
            self._palette_invoker.detach()

    def set_named_icon(self, named_icon):
        icon = Icon(icon_name=named_icon)
        self.set_icon_widget(icon)
        icon.show()

    def create_palette(self):
        return None

    def get_palette(self):
        return self._palette_invoker.palette

    def set_palette(self, palette):
        self._palette_invoker.palette = palette

    palette = gobject.property(
        type=object, setter=set_palette, getter=get_palette)

    def get_palette_invoker(self):
        return self._palette_invoker
    
    def set_palette_invoker(self, palette_invoker):
        self._palette_invoker.detach()
        self._palette_invoker = palette_invoker

    palette_invoker = gobject.property(
        type=object, setter=set_palette_invoker, getter=get_palette_invoker)

    def set_tooltip(self, text):
        self.set_palette(Palette(text))
    
    def do_expose_event(self, event):
        allocation = self.get_allocation()
        child = self.get_child()

        if self.palette and self.palette.is_up():
            invoker = self.palette.props.invoker
            invoker.draw_rectangle(event, self.palette)
        elif child.state == gtk.STATE_PRELIGHT:
            child.style.paint_box(event.window, gtk.STATE_PRELIGHT,
                                  gtk.SHADOW_NONE, event.area,
                                  child, "toolbutton-prelight",
                                  allocation.x, allocation.y,
                                  allocation.width, allocation.height)

        gtk.ToggleToolButton.do_expose_event(self, event)
    
    palette = property(get_palette, set_palette)