/* Copyright ©2007-2010 Kris Maglione <maglione.k at Gmail>
* See LICENSE file for license details.
*/
#include "../x11.h"
Rectangle
sizehint(WinHints *h, Rectangle r) {
Point p, aspect, origin;
if(h == nil)
return r;
origin = r.min;
r = rectsubpt(r, origin);
/* Min/max */
r.max.x = max(r.max.x, h->min.x);
r.max.y = max(r.max.y, h->min.y);
r.max.x = min(r.max.x, h->max.x);
r.max.y = min(r.max.y, h->max.y);
/* Increment */
p = subpt(r.max, h->base);
r.max.x -= p.x % h->inc.x;
r.max.y -= p.y % h->inc.y;
/* Aspect */
p = subpt(r.max, h->baspect);
p.y = max(p.y, 1);
aspect = h->aspect.min;
if(p.x * aspect.y / p.y < aspect.x)
r.max.y = h->baspect.y
+ p.x * aspect.y / aspect.x;
aspect = h->aspect.max;
if(p.x * aspect.y / p.y > aspect.x)
r.max.x = h->baspect.x
+ p.y * aspect.x / aspect.y;
return rectaddpt(r, origin);
}