# Copyright (C) 2006-2007 Red Hat, Inc.
#
# 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 St, Fifth Floor, Boston, MA  02110-1301  USA

import logging

import gobject
import hippo
import gconf

from sugar.graphics import style
from sugar.graphics.icon import CanvasIcon
from sugar.graphics.xocolor import XoColor
from sugar.presence import presenceservice

from jarabe.view.buddymenu import BuddyMenu
from jarabe.model.buddy import BuddyModel
from jarabe.model import friends
from jarabe.desktop.friendview import FriendView
from jarabe.desktop.spreadlayout import SpreadLayout

class GroupBox(hippo.Canvas):
    __gtype_name__ = 'SugarGroupBox'
    def __init__(self):
        logging.debug("STARTUP: Loading the group view")

        gobject.GObject.__init__(self)

        self._box = hippo.CanvasBox()
        self._box.props.background_color = style.COLOR_WHITE.get_int()
        self.set_root(self._box)

        self._friends = {}

        self._layout = SpreadLayout()
        self._box.set_layout(self._layout)

        client = gconf.client_get_default()
        color = XoColor(client.get_string("/desktop/sugar/user/color"))

        self._owner_icon = CanvasIcon(icon_name='computer-xo', cache=True,
                                      xo_color=color)
        self._owner_icon.props.size = style.LARGE_ICON_SIZE

        presence_service = presenceservice.get_instance()
        owner = BuddyModel(buddy=presence_service.get_owner())
        self._owner_icon.set_palette(BuddyMenu(owner))
        self._layout.add(self._owner_icon)

        friends_model = friends.get_model()

        for friend in friends_model:
            self.add_friend(friend)

        friends_model.connect('friend-added', self._friend_added_cb)
        friends_model.connect('friend-removed', self._friend_removed_cb)

    def add_friend(self, buddy_info):
        icon = FriendView(buddy_info)
        self._layout.add(icon)

        self._friends[buddy_info.get_key()] = icon

    def _friend_added_cb(self, data_model, buddy_info):
        self.add_friend(buddy_info)

    def _friend_removed_cb(self, data_model, key):
        icon = self._friends[key]
        self._layout.remove(icon)
        del self._friends[key]
        icon.destroy()

    def do_size_allocate(self, allocation):
        width = allocation.width        
        height = allocation.height

        min_w_, icon_width = self._owner_icon.get_width_request()
        min_h_, icon_height = self._owner_icon.get_height_request(icon_width)
        x = (width - icon_width) / 2
        y = (height - icon_height) / 2
        self._layout.move(self._owner_icon, x, y)

        hippo.Canvas.do_size_allocate(self, allocation)