[Libpapyrus-users] Groups do not work right as References?

[Julius Z. <zi...@mr...>]

Hello Rick,

I came upon a problem with groups used by "Reference". In the small 
example below, I put a rectangle inside a group (rect_group) and applied 
some transformation to the group, including a 45 degree rotation. Then, 
I build a Reference object that references rect_group. I shifted the 
reference object 50 px right to see something. Apparently, the 
transformations in rect_group got lost in the Reference (the "clone" is 
not rotated by 45 degree, and not shifted downwards. But it should. 
Should it?).

If I apply transformations directly on the rectangle (rect->set_xy(...)) 
everything works ok.

Could you please have a look?

Thanks!
Julius

//

#include <gtkmm.h>
#include <papyrus-gtkmm.h>

int main( int argc, char** argv )
{
   Gtk::Main gtk_kit( argc, argv );
   Gtk::Window window;

   Papyrus::Gtk::Viewport viewport;
   window.add( viewport );

   window.show_all();

   Papyrus::Group::pointer rect_group = Papyrus::Group::create();
   Papyrus::Rectangle::pointer rect = Papyrus::Rectangle::create( 0, 0, 
40, 5, Papyrus::RGBA( 0, 0, 1, .5 ) );

   Papyrus::Group::pointer extra_group = Papyrus::Group::create();
   extra_group->add( rect_group );

   rect_group->add( rect );
   rect_group->set_xy( -50, 30 );
   rect_group->set_rotation( 0.25*M_PI );

   viewport.canvas()->add( extra_group );

   Papyrus::Reference::pointer reference = Papyrus::Reference::create( 
rect_group );

   reference->set_xy( 50, 0 );

   viewport.canvas()->add( reference );

   Gtk::Main::run( window );
}