- image.get_window()->draw_rectangle(gc, 1, w/2-4, 0, 4, h);
+ image.get_window()->draw_arc(gc, 0, 16, -16, w, h, -90*64, -90*64);
+ gc->set_line_attributes(4, Gdk::LINE_SOLID, Gdk::CAP_NOT_LAST, Gdk::JOIN_MITER);
+ gc->set_foreground(color);
+ image.get_window()->draw_arc(gc, 0, 16, -16, w, h, -90*64, -90*64);