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# 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
import gobject
import gtk
import cjson
from sugar import dispatch
class MindMapModel(gtk.TreeStore):
def __init__(self):
gtk.TreeStore.__init__(self, int, str, long, long, str)
self._next_thought_id = 0
self._thoughts_by_id = {}
self._thoughts = []
def create_new_thought(self):
self.append(None, (self._next_thought_id, '', 0, 0, ''))
self._next_thought_id += 1
def serialize(self):
thoughts = []
for row in self:
logging.debug('serialize %r' % row[0])
thought_dict = {}
thought_dict['id'] = row[0]
thought_dict['name'] = row[1]
thought_dict['x'] = row[2]
thought_dict['y'] = row[3]
thought_dict['color'] = row[4]
thoughts.append(thought_dict)
return cjson.encode({'thoughts': thoughts})
def unserialize(self, data):
thoughts = cjson.decode(data)['thoughts']
for thought_dict in thoughts:
self._next_thought_id = max(self._next_thought_id + 1,
thought_dict['id'] + 1)
self.append(None, (thought_dict['id'],
thought_dict.get('name', None),
thought_dict.get('x', None),
thought_dict.get('y', None),
thought_dict.get('color', None)))
def find_by_id(self, thought_id, rows=None):
if rows is None:
rows = self
for row in rows:
if row[0] == thought_id:
return row
self.find_by_id(thought_id, row.iterchildren())
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