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;
}
void popTransform()
{
transformStack.pop();
}