//gtk_widget_set_size_request(drawing->padding, -1, 27);
gtk_box_pack_start(GTK_BOX(drawing->ruler_hbox), drawing->ruler,
TRUE, TRUE, 0);
//gtk_widget_set_size_request(drawing->padding, -1, 27);
gtk_box_pack_start(GTK_BOX(drawing->ruler_hbox), drawing->ruler,
TRUE, TRUE, 0);