extend floating mode keybinds

docs/bindlist

@@ -81,6 +81,7 @@
   - Super+Control+Shift+n     | Connect to wifi (Requires iwd)
   - Super+Control+Shift+b     | Connect to a bluetooth device (Requires bluez and bluez-utils)
   - Super+Control+Shift+e     | Open up a list of dotfiles in dmenu that you can edit.
+  - Alt+Super+Up/Down         | Resize the window keeping the aspect ratio of it.
   - Alt+Tab                   | Switch windows quickly and easily 
   - Alt+Control+j/k           | Change window size vertically (cfact)
   

keybinds.h

@@ -108,6 +108,8 @@ static const Key keys[] = {
 	{ MODIFIER1|ShiftMask,              -1,           XK_Up,         moveresize,           {.v = "0x 0y 0w -25h" } },
 	{ MODIFIER1|ShiftMask,              -1,           XK_Right,      moveresize,           {.v = "0x 0y 25w 0h" } },
 	{ MODIFIER1|ShiftMask,              -1,           XK_Left,       moveresize,           {.v = "0x 0y -25w 0h" } },
+	{ MODIFIER2|ShiftMask,              -1,           XK_Down,       moveresizeaspect,     {.i = +24} },
+	{ MODIFIER2|ShiftMask,              -1,           XK_Up,         moveresizeaspect,     {.i = -24} },
 	{ MODIFIER1|ControlMask,            -1,           XK_Up,         moveresizeedge,       {.v = "t"} },
 	{ MODIFIER1|ControlMask,            -1,           XK_Down,       moveresizeedge,       {.v = "b"} },
 	{ MODIFIER1|ControlMask,            -1,           XK_Left,       moveresizeedge,       {.v = "l"} },

speedwm.c

@@ -302,6 +302,7 @@ static void setnumdesktops(void);
 static void setviewport(void);
 static void arrange(Monitor *m);
 static void arrangemon(Monitor *m);
+static void moveresizeaspect(const Arg *arg);
 static void attach(Client *c);
 static void attachabove(Client *c);
 static void attachaside(Client *c);
@@ -865,6 +866,29 @@ arrangemon(Monitor *m)
 		}
 }
 
+void
+moveresizeaspect(const Arg *arg) {
+	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)
 {