y_factor = new ScaleYFactor(this, client, x3, y1);
y_factor->create_objects();
add_tool(constrain = new ScaleConstrain(client, x1, y2));
y_factor = new ScaleYFactor(this, client, x3, y1);
y_factor->create_objects();
add_tool(constrain = new ScaleConstrain(client, x1, y2));