C++ (Cpp) handle::set_active Examples

Example #1

File: action_system.cpp Project: ZurbaXI/synfig

bool
Action::System::set_action_status(etl::handle<Action::Undoable> action, bool x)
{
	Stack::iterator iter;
	int failed=false;

	if(action->is_active()==x)
		return true;

	handle<Action::Undoable> cur_pos=undo_action_stack_.front();

	Action::CanvasSpecific* canvas_specific(dynamic_cast<Action::CanvasSpecific*>(action.get()));

	handle<UIInterface> uim=new ConfidentUIInterface();

	iter=find(undo_action_stack_.begin(),undo_action_stack_.end(),action);
	if(iter!=undo_action_stack_.end())
	{
		while(undo_action_stack_.front()!=action)
		{
			if(!undo_(uim))
			{
				return false;
			}
		}
		if(!undo_(uim))
		{
			return false;
		}

		action->set_active(x);

		if(redo_(get_ui_interface()))
		{
			signal_action_status_changed_(action);
		}
		else
		{
			action->set_active(!x);
			failed=true;
		}


		while(undo_action_stack_.front()!=cur_pos)
		{
			if(!redo_(uim))
			{
				redo_action_stack_.front()->set_active(false);
				signal_action_status_changed_(redo_action_stack_.front());
			}
		}

		if(!failed && canvas_specific && canvas_specific->is_dirty())
		{
			Canvas::Handle canvas=canvas_specific->get_canvas();
			handle<CanvasInterface> canvas_interface=static_cast<Instance*>(this)->find_canvas_interface(canvas);
			assert(canvas_interface);
			//canvas_interface->signal_dirty_preview()();
		}

		return true;
	}

	iter=find(redo_action_stack_.begin(),redo_action_stack_.end(),action);
	if(iter!=redo_action_stack_.end())
	{
		action->set_active(x);
		signal_action_status_changed_(action);




		if(canvas_specific && canvas_specific->is_dirty())
		{
			Canvas::Handle canvas=canvas_specific->get_canvas();
			handle<CanvasInterface> canvas_interface=static_cast<Instance*>(this)->find_canvas_interface(canvas);
			assert(canvas_interface);
			//canvas_interface->signal_dirty_preview()();
		}

		return true;
	}

	return false;
}