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# Copyright (C) 2008, One Laptop Per Child
# Author: Sayamindu Dasgupta <sayamindu@laptop.org>
#
# 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
from sugar.activity import activity
import logging
from gettext import gettext as _
import sys, os
import gtk
import ImageView
import ImageViewerToolbar
class ImageViewerActivity(activity.Activity):
def __init__(self, handle):
activity.Activity.__init__(self, handle)
self.zoom = None
self.view = ImageView.ImageViewer()
toolbox = activity.ActivityToolbox(self)
self._view_toolbar = ImageViewerToolbar.ViewToolbar(self.view)
toolbox.add_toolbar(_('View'), self._view_toolbar)
self._view_toolbar.show()
self.set_toolbox(toolbox)
toolbox.show()
self._view_toolbar.connect('go-fullscreen',
self.__view_toolbar_go_fullscreen_cb)
self.connect('window-state-event',
self.__window_state_event_cb)
vadj = gtk.Adjustment()
hadj = gtk.Adjustment()
self.sw = gtk.ScrolledWindow(hadj, vadj)
self.sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
self.sw.add_with_viewport(self.view)
self.set_canvas(self.sw)
self.sw.show_all()
def read_file(self, file_path):
self.view.set_file_location(file_path)
#self.zoom = int(self.metadata.get('zoom', '0'))
#if self.zoom == 0:
# self.zoom = self.view.get_property('zoom')
#else:
# self.view.set_zoom(self.zoom)
#def write_file(self, file_path):
#try:
# self.metadata['zoom'] = str(self.zoom)
#except Exception, e:
# logging.error('write_file(): %s', e)
def __view_toolbar_go_fullscreen_cb(self, view_toolbar):
self._old_zoom = self.view.get_property('zoom') #XXX: Hack
# Zoom to fit screen if possible
screen = self.get_screen()
zoom = self.view.calculate_optimal_zoom(screen.get_width(), screen.get_height())
self.view.set_zoom(zoom)
self.fullscreen()
def __window_state_event_cb(self, window, event):
if event.changed_mask & gtk.gdk.WINDOW_STATE_FULLSCREEN:
if not self.window.get_state() & gtk.gdk.WINDOW_STATE_FULLSCREEN:
self.view.set_zoom(self._old_zoom)
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