# Copyright (C) 2009, Tomeu Vizoso
#
# 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
from gettext import gettext as _

# HACK: What else can we do?
import sys
import os
sys.path.insert(0, os.path.join(os.environ['SUGAR_BUNDLE_PATH'], 'gaphas'))

import gobject
import gtk

from sugar.activity import activity
from sugar.graphics.toolbutton import ToolButton

from model import MindMapModel
from view import MindMapView
from treeview import TreeView

class MindMapActivity(activity.Activity):

    __gtype_name__ = 'MindMapActivity'

    def __init__(self, handle):
        activity.Activity.__init__(self, handle)

        toolbox = activity.ActivityToolbox(self)
        self.set_toolbox(toolbox)
        toolbox.show()

        self._edit_toolbar = EditToolbar()
        self._edit_toolbar.new_thought_button.connect('clicked',
                self.__new_thought_button_cb)
        toolbox.add_toolbar(_('Edit'), self._edit_toolbar)
        self._edit_toolbar.show()

        self._model = MindMapModel()

        pane = gtk.HPaned()
        self.set_canvas(pane)
        pane.show()

        self._tree_view = TreeView(self._model)
        pane.add1(self._tree_view)
        self._tree_view.show()

        self._view = MindMapView(model=self._model)
        pane.pack2(self._view)
        self._view.show()

        if handle.object_id is None:
            gobject.idle_add(self.__add_first_thought_cb)

    def __add_first_thought_cb(self):
        x, y, width, height = self._view.get_allocation()
        #TODO: place better the first thought
        thought_id = self._model.create_new_thought(name=_('Initial thought'),
                                                    color='#8888FF',
                                                    x=width / 2,
                                                    y=height / 2)
        return False

    def __new_thought_button_cb(self, button):
        self._model.create_new_thought()

    def write_file(self, file_path):
        data = self._model.serialize()
        open(file_path, 'w').write(data)

    def read_file(self, file_path):
        data = open(file_path, 'r').read()
        self._model.unserialize(data)

class EditToolbar(activity.EditToolbar):
    __gtype_name__ = 'MindMapEditToolbar'

    def __init__(self):
        activity.EditToolbar.__init__(self)

        separator = gtk.SeparatorToolItem()
        self.insert(separator, -1)
        separator.show()

        self.new_thought_button = ToolButton('list-add')
        self.new_thought_button.set_tooltip(_('New thought'))
        self.new_thought_button.props.accelerator = _('<ctrl>n')
        self.insert(self.new_thought_button, -1)
        self.new_thought_button.show()