I'm trying to use 2 GtkTreeViews containing "connectable" items (audio inputs/outputs). Between them should be a custom drawing area showing connection lines/beziers. So I have to transform the y-component of cell coordinates retrieved by gtk_tree_view_get_background_area or gtk_tree_view_get_cell_area into the coordinate system of the drawing area. Here's some pseudo code (I actually use gtkmm, but anyway):
gtk_tree_view_get_background_area(signal_view,signal_path,signal_column,&signal_rect); /* get cell rectangle */ /* now I have tree window coords, but how do I transform them to tree or widget coords? */ /* if I had tree coords, I would do the following: */ gtk_tree_view_tree_to_widget_coords(signal_view,signal_rect.x,signal_rect.y,&signal_rect.x,&signal_rect.y); gtk_widget_translate_coordinates(signal_view,my_drawing_area,signal_rect.x,signal_rect.y,&signal_rect.x,&signal_rect.y); The point is, it doesn't work. I tried a hack making gtk_tree_view_tree_window_to_tree_coords public, because this function seemed to solve my problem, but it didn't. The resulting coords are always expected_y - tree_view->priv->header_height. By hacking in _GtkTreeViewPrivate and adding header_height to the y-component, I get the expected result. Did I miss any information, or is it really impossible without my hack? Thanks in advance, Stefan _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
