keyframe_action_manager->set_keyframe_tree(dynamic_cast<KeyframeTree*>(canvas_view->get_ext_widget(get_name())));
keyframe_action_manager->set_canvas_interface(canvas_view->canvas_interface());
keyframe_action_manager->refresh();
keyframe_action_manager->set_keyframe_tree(dynamic_cast<KeyframeTree*>(canvas_view->get_ext_widget(get_name())));
keyframe_action_manager->set_canvas_interface(canvas_view->canvas_interface());
keyframe_action_manager->refresh();
keyframe_action_manager->set_keyframe_tree(0);
keyframe_action_manager->set_canvas_interface(0);
keyframe_action_manager->refresh();
keyframe_action_manager->set_keyframe_tree(0);
keyframe_action_manager->set_canvas_interface(0);
keyframe_action_manager->refresh();