w1 = c->area.width + data->relative.deltax * c->size_inc.width;
w2 = c->area.width + data->relative.deltax * c->size_inc.width
+ data->relative.deltaxl * c->size_inc.width;
- h1 = c->area.height + data->relative.deltay * c->size_inc.width;
+ h1 = c->area.height + data->relative.deltay * c->size_inc.height;
h2 = c->area.height + data->relative.deltay * c->size_inc.height
+ data->relative.deltayu * c->size_inc.height;