From 0ac50d43c5a48de34a53db8240143e4fb39239d3 Mon Sep 17 00:00:00 2001
From: bakkeby <bakkeby@gmail.com>
Date: Fri, 22 May 2020 13:51:06 +0200
Subject: [PATCH] The moveresize patch allows floating windows to be resized
 and moved using keyboard shortcuts.

This example keybinding reduces the y position with 25 pixels.

	{ MODKEY,                       XK_Up,     moveresize,     {.v = "0x -25y 0w 0h" } },

Use capital letters to specify absolute size and position should you need it.

    { MODKEY,                       XK_Up,     moveresize,     {.v = "0x 0y 500W 300H" } },

The above example would set the size of the client to 300x500 pixels, but leave the position as-is.

Refer to:
https://dwm.suckless.org/patches/moveresize/
---
 config.def.h |  8 +++++++
 dwm.c        | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 74 insertions(+)

diff --git a/config.def.h b/config.def.h
index 1c0b587..ff863c9 100644
--- a/config.def.h
+++ b/config.def.h
@@ -78,6 +78,14 @@ static Key keys[] = {
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
+	{ MODKEY,                       XK_Down,   moveresize,     {.v = "0x 25y 0w 0h" } },
+	{ MODKEY,                       XK_Up,     moveresize,     {.v = "0x -25y 0w 0h" } },
+	{ MODKEY,                       XK_Right,  moveresize,     {.v = "25x 0y 0w 0h" } },
+	{ MODKEY,                       XK_Left,   moveresize,     {.v = "-25x 0y 0w 0h" } },
+	{ MODKEY|ShiftMask,             XK_Down,   moveresize,     {.v = "0x 0y 0w 25h" } },
+	{ MODKEY|ShiftMask,             XK_Up,     moveresize,     {.v = "0x 0y 0w -25h" } },
+	{ MODKEY|ShiftMask,             XK_Right,  moveresize,     {.v = "0x 0y 25w 0h" } },
+	{ MODKEY|ShiftMask,             XK_Left,   moveresize,     {.v = "0x 0y -25w 0h" } },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
 	{ MODKEY|ShiftMask,             XK_0,      tag,            {.ui = ~0 } },
 	{ MODKEY,                       XK_comma,  focusmon,       {.i = -1 } },
diff --git a/dwm.c b/dwm.c
index 4465af1..89483c1 100644
--- a/dwm.c
+++ b/dwm.c
@@ -182,6 +182,7 @@ static void mappingnotify(XEvent *e);
 static void maprequest(XEvent *e);
 static void monocle(Monitor *m);
 static void motionnotify(XEvent *e);
+static void moveresize(const Arg *arg);
 static void movemouse(const Arg *arg);
 static Client *nexttiled(Client *c);
 static void pop(Client *);
@@ -1192,6 +1193,71 @@ movemouse(const Arg *arg)
 	}
 }
 
+void
+moveresize(const Arg *arg) {
+	/* only floating windows can be moved */
+	Client *c;
+	c = selmon->sel;
+	int x, y, w, h, nx, ny, nw, nh, ox, oy, ow, oh;
+	char xAbs, yAbs, wAbs, hAbs;
+	int msx, msy, dx, dy, nmx, nmy;
+	unsigned int dui;
+	Window dummy;
+
+	if (!c || !arg)
+		return;
+	if (selmon->lt[selmon->sellt]->arrange && !c->isfloating)
+		return;
+	if (sscanf((char *)arg->v, "%d%c %d%c %d%c %d%c", &x, &xAbs, &y, &yAbs, &w, &wAbs, &h, &hAbs) != 8)
+		return;
+
+	/* compute new window position; prevent window from be positioned outside the current monitor */
+	nw = c->w + w;
+	if (wAbs == 'W')
+		nw = w < selmon->mw - 2 * c->bw ? w : selmon->mw - 2 * c->bw;
+
+	nh = c->h + h;
+	if (hAbs == 'H')
+		nh = h < selmon->mh - 2 * c->bw ? h : selmon->mh - 2 * c->bw;
+
+	nx = c->x + x;
+	if (xAbs == 'X') {
+		if (x < selmon->mx)
+			nx = selmon->mx;
+		else if (x > selmon->mx + selmon->mw)
+			nx = selmon->mx + selmon->mw - nw - 2 * c->bw;
+		else
+			nx = x;
+	}
+
+	ny = c->y + y;
+	if (yAbs == 'Y') {
+		if (y < selmon->my)
+			ny = selmon->my;
+		else if (y > selmon->my + selmon->mh)
+			ny = selmon->my + selmon->mh - nh - 2 * c->bw;
+		else
+			ny = y;
+	}
+
+	ox = c->x;
+	oy = c->y;
+	ow = c->w;
+	oh = c->h;
+
+	XRaiseWindow(dpy, c->win);
+	Bool xqp = XQueryPointer(dpy, root, &dummy, &dummy, &msx, &msy, &dx, &dy, &dui);
+	resize(c, nx, ny, nw, nh, True);
+
+	/* move cursor along with the window to avoid problems caused by the sloppy focus */
+	if (xqp && ox <= msx && (ox + ow) >= msx && oy <= msy && (oy + oh) >= msy)
+	{
+		nmx = c->x - ox + c->w - ow;
+		nmy = c->y - oy + c->h - oh;
+		XWarpPointer(dpy, None, None, 0, 0, 0, 0, nmx, nmy);
+	}
+}
+
 Client *
 nexttiled(Client *c)
 {
-- 
2.19.1