aspectresize patch

dwm.c

@@ -148,6 +148,7 @@ static void applyrules(Client *c);
 static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interact);
 static void arrange(Monitor *m);
 static void arrangemon(Monitor *m);
+static void aspectresize(const Arg *arg);
 static void attach(Client *c);
 static void attachstack(Client *c);
 static void buttonpress(XEvent *e);
@@ -410,6 +411,30 @@ arrangemon(Monitor *m)
 		m->lt[m->sellt]->arrange(m);
 }
 
+void
+aspectresize(const Arg *arg) {
+	/* only floating windows can be moved */
+	Client *c;
+	c = selmon->sel;
+	float ratio;
+	int w, h,nw, nh;
+
+	if (!c || !arg)
+		return;
+	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
+		return;
+
+	ratio = (float)c->w / (float)c->h;
+	h = arg->i;
+	w = (int)(ratio * h);
+
+	nw = c->w + w;
+	nh = c->h + h;
+
+	XRaiseWindow(dpy, c->win);
+	resize(c, c->x, c->y, nw, nh, True);
+}
+
 void
 attach(Client *c)
 {