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;
}
