Пример #1
0
bool
StateBrush_Context::build_transform_stack(
	Canvas::Handle canvas,
	Layer::Handle layer,
	CanvasView::Handle canvas_view,
	TransformStack& transform_stack )
{
	int count = 0;
	for(Canvas::iterator i = canvas->begin(); i != canvas->end() ;++i)
	{
		if(*i == layer) return true;

		if((*i)->active())
		{
			Transform::Handle trans((*i)->get_transform());
			if(trans) { transform_stack.push(trans); count++; }
		}

		// If this is a paste canvas layer, then we need to
		// descend into it
		if(etl::handle<Layer_PasteCanvas> layer_pastecanvas = etl::handle<Layer_PasteCanvas>::cast_dynamic(*i))
		{
			transform_stack.push_back(
				new Transform_Matrix(
						layer_pastecanvas->get_guid(),
					layer_pastecanvas->get_summary_transformation().get_matrix()
				)
			);
			if (build_transform_stack(layer_pastecanvas->get_sub_canvas(), layer, canvas_view, transform_stack))
				return true;
			transform_stack.pop();
		}
	}
	while(count-- > 0) transform_stack.pop();
	return false;
}
//! \writeme
int
synfig::waypoint_collect(set<Waypoint, std::less<UniqueID> >	&waypoint_set,
						 const Time								&time,
						 const etl::handle<Node>				&node)
{
	const TimePointSet& timepoint_set(node->get_times());

	// Check to see if there is anything in here at the given time
	if(timepoint_set.find(time)==timepoint_set.end())
		return 0;

	// Check if we are a linkable value node
	LinkableValueNode::Handle linkable_value_node;
	linkable_value_node=linkable_value_node.cast_dynamic(node);
	if(linkable_value_node)
	{
		const int link_count(linkable_value_node->link_count());
		int i,ret(0);
		for(i=0;i<link_count;i++)
			ret+=waypoint_collect(waypoint_set,time,linkable_value_node->get_link(i).get());

		return ret;
	}

	// Check if we are a layer
	Layer::Handle layer;
	layer=layer.cast_dynamic(node);
	if(layer)
	{
		const Layer::DynamicParamList& dyn_param_list(layer->dynamic_param_list());
		Layer::DynamicParamList::const_iterator iter;
		int ret(0);
		for(iter=dyn_param_list.begin();iter!=dyn_param_list.end();++iter)
			ret+=waypoint_collect(waypoint_set,time,iter->second);

		ValueBase canvas_value(layer->get_param("canvas"));
		if(canvas_value.get_type()==type_canvas)
		{
			etl::handle<Layer_PasteCanvas> p = etl::handle<Layer_PasteCanvas>::cast_dynamic(layer);
			if (p)
				ret+=waypoint_collect(waypoint_set, time + p->get_time_offset(),
									  Canvas::Handle(canvas_value.get(Canvas::Handle())));
			else
				ret+=waypoint_collect(waypoint_set, time,
									  Canvas::Handle(canvas_value.get(Canvas::Handle())));
		}
		return ret;
	}

	// Check if we are a canvas
	Canvas::Handle canvas;
	canvas=canvas.cast_dynamic(node);
	if(canvas)
	{
		Canvas::const_iterator iter;
		int ret(0);
		for(iter=canvas->begin();iter!=canvas->end();++iter)
			ret+=waypoint_collect(waypoint_set,time,*iter);
		return ret;
	}

	// Check if we are an animated value node
	ValueNode_Animated::Handle value_node_animated;
	value_node_animated=value_node_animated.cast_dynamic(node);
	if(value_node_animated)
	{
		try{
			Waypoint waypoint=*value_node_animated->find(time);

			// If it is already in the waypoint set, then
			// don't bother adding it again
			if(waypoint_set.find(waypoint)!=waypoint_set.end())
				return 0;

			waypoint_set.insert(waypoint);
			return 1;
		}catch(...)
		{
			return 0;
		}
	}

	return 0;
}