From 4cd2832206eca48190463ac2d3e5ba4e1410c517 Mon Sep 17 00:00:00 2001
From: jameel-sawafta <jameelhsawafta@gmail.com>
Date: Fri, 9 May 2025 22:47:04 +0300
Subject: [PATCH] dwm: add swapmon function to swap monitors

---
 config.def.h |  1 +
 dwm.c        | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/config.def.h b/config.def.h
index 9efa774..7c229cc 100644
--- a/config.def.h
+++ b/config.def.h
@@ -85,6 +85,7 @@ static const Key keys[] = {
 	{ MODKEY,                       XK_period, focusmon,       {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_comma,  tagmon,         {.i = -1 } },
 	{ MODKEY|ShiftMask,             XK_period, tagmon,         {.i = +1 } },
+        { MODKEY|ShiftMask,             XK_apostrophe,  swapmon,   {0} },
 	TAGKEYS(                        XK_1,                      0)
 	TAGKEYS(                        XK_2,                      1)
 	TAGKEYS(                        XK_3,                      2)
diff --git a/dwm.c b/dwm.c
index 1443802..adfe8bd 100644
--- a/dwm.c
+++ b/dwm.c
@@ -232,6 +232,7 @@ static int xerror(Display *dpy, XErrorEvent *ee);
 static int xerrordummy(Display *dpy, XErrorEvent *ee);
 static int xerrorstart(Display *dpy, XErrorEvent *ee);
 static void zoom(const Arg *arg);
+static void swapmon(const Arg *arg);
 
 /* variables */
 static const char broken[] = "broken";
@@ -2139,6 +2140,38 @@ zoom(const Arg *arg)
 	pop(c);
 }
 
+void
+swapmon(const Arg *arg)
+{
+    if (mons->next == NULL)
+        return;
+
+    Monitor *m1 = mons;
+    Monitor *m2 = mons->next;
+
+    unsigned int tmp = m1->tagset[m1->seltags];
+    m1->tagset[m1->seltags] = m2->tagset[m2->seltags];
+    m2->tagset[m2->seltags] = tmp;
+
+    Client *c;
+    for (c = m1->clients; c; c = c->next)
+        c->mon = m2;
+    for (c = m2->clients; c; c = c->next)
+        c->mon = m1;
+
+    Client *tmp_clients = m1->clients;
+    m1->clients = m2->clients;
+    m2->clients = tmp_clients;
+
+    Client *tmp_stack = m1->stack;
+    m1->stack = m2->stack;
+    m2->stack = tmp_stack;
+
+    focus(NULL);
+    arrange(m1);
+    arrange(m2);
+}
+
 int
 main(int argc, char *argv[])
 {
-- 
2.49.0