#!/usr/bin/python import math import pygtk pygtk.require('2.0') import gtk from sugar.scene.Stage import Stage from sugar.scene.Group import Group from sugar.scene.PixbufActor import PixbufActor from sugar.scene.CircleLayout import CircleLayout from sugar.scene.Timeline import Timeline def __drawing_area_expose_cb(widget, event, stage): stage.render(widget.window) def __next_frame_cb(timeline, frame_num, group): angle = math.pi * 2 * frame_num / timeline.get_n_frames() group.get_layout().set_angle(angle) group.do_layout() drawing_area.window.invalidate_rect(None, False) def __completed_cb(timeline, group): group.get_layout().set_angle(0) group.do_layout() drawing_area.window.invalidate_rect(None, False) stage = Stage() pixbuf = gtk.gdk.pixbuf_new_from_file('background.png') stage.add(PixbufActor(pixbuf)) icons_group = Group() icons_group.set_position(100, 100) i = 1 while i <= 5: pixbuf = gtk.gdk.pixbuf_new_from_file('activity%d.png' % i) icons_group.add(PixbufActor(pixbuf)) i += 1 layout = CircleLayout(100) icons_group.set_layout(layout) stage.add(icons_group) window = gtk.Window() window.set_default_size(640, 480) drawing_area = gtk.DrawingArea() drawing_area.connect('expose_event', __drawing_area_expose_cb, stage) window.add(drawing_area) drawing_area.show() window.show() timeline = Timeline(stage, 200) timeline.connect('next-frame', __next_frame_cb, icons_group) timeline.connect('completed', __completed_cb, icons_group) timeline.start() gtk.main()