+ if(abs(wax + c->x) < SNAP)
+ c->x = wax;
+ else if(abs((wax + waw) - (c->x + c->w)) < SNAP)
+ c->x = wax + waw - c->w - 2 * BORDERPX;
+ if(abs(way - c->y) < SNAP)
+ c->y = way;
+ else if(abs((way + wah) - (c->y + c->h)) < SNAP)
+ c->y = way + wah - c->h - 2 * BORDERPX;