added cyclelayouts patch

config.def.h

@@ -41,6 +41,7 @@ static const Layout layouts[] = {
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ NULL,       NULL },
 };
 
 /* key definitions */
@@ -76,6 +77,8 @@ static Key keys[] = {
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
+	{ MODKEY|ControlMask,		XK_comma,  cyclelayout,    {.i = -1 } },
+	{ MODKEY|ControlMask,           XK_period, cyclelayout,    {.i = +1 } },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },

dwm-cyclelayouts-20180524-6.2.diff

@@ -0,0 +1,93 @@
+From a09e766a4342f580582082a92b2de65f33208eb4 Mon Sep 17 00:00:00 2001
+From: Christopher Drelich <cd@cdrakka.com>
+Date: Thu, 24 May 2018 00:56:56 -0400
+Subject: [PATCH] Function to cycle through available layouts.
+
+MOD-CTRL-, and MOD-CTRL-.
+cycle backwards and forwards through available layouts.
+Probably only useful if you have a lot of additional layouts.
+The NULL, NULL layout should always be the last layout in your list,
+in order to guarantee consistent behavior.
+---
+ config.def.h |  3 +++
+ dwm.1        |  6 ++++++
+ dwm.c        | 18 ++++++++++++++++++
+ 3 files changed, 27 insertions(+)
+
+diff --git a/config.def.h b/config.def.h
+index a9ac303..153b880 100644
+--- a/config.def.h
++++ b/config.def.h
+@@ -41,6 +41,7 @@ static const Layout layouts[] = {
+ 	{ "[]=",      tile },    /* first entry is default */
+ 	{ "><>",      NULL },    /* no layout function means floating behavior */
+ 	{ "[M]",      monocle },
++	{ NULL,       NULL },
+ };
+ 
+ /* key definitions */
+@@ -76,6 +77,8 @@ static Key keys[] = {
+ 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
+ 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
+ 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
++	{ MODKEY|ControlMask,		XK_comma,  cyclelayout,    {.i = -1 } },
++	{ MODKEY|ControlMask,           XK_period, cyclelayout,    {.i = +1 } },
+ 	{ MODKEY,                       XK_space,  setlayout,      {0} },
+ 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
+ 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },
+diff --git a/dwm.1 b/dwm.1
+index 13b3729..165891b 100644
+--- a/dwm.1
++++ b/dwm.1
+@@ -92,6 +92,12 @@ Sets monocle layout.
+ .B Mod1\-space
+ Toggles between current and previous layout.
+ .TP
++.B Mod1\-Control\-,
++Cycles backwards in layout list.
++.TP
++.B Mod1\-Control\-.
++Cycles forwards in layout list.
++.TP
+ .B Mod1\-j
+ Focus next window.
+ .TP
+diff --git a/dwm.c b/dwm.c
+index bb95e26..db73000 100644
+--- a/dwm.c
++++ b/dwm.c
+@@ -157,6 +157,7 @@ static void configure(Client *c);
+ static void configurenotify(XEvent *e);
+ static void configurerequest(XEvent *e);
+ static Monitor *createmon(void);
++static void cyclelayout(const Arg *arg);
+ static void destroynotify(XEvent *e);
+ static void detach(Client *c);
+ static void detachstack(Client *c);
+@@ -645,6 +646,23 @@ createmon(void)
+ }
+ 
+ void
++cyclelayout(const Arg *arg) {
++	Layout *l;
++	for(l = (Layout *)layouts; l != selmon->lt[selmon->sellt]; l++);
++	if(arg->i > 0) {
++		if(l->symbol && (l + 1)->symbol)
++			setlayout(&((Arg) { .v = (l + 1) }));
++		else
++			setlayout(&((Arg) { .v = layouts }));
++	} else {
++		if(l != layouts && (l - 1)->symbol)
++			setlayout(&((Arg) { .v = (l - 1) }));
++		else
++			setlayout(&((Arg) { .v = &layouts[LENGTH(layouts) - 2] }));
++	}
++}
++
++void
+ destroynotify(XEvent *e)
+ {
+ 	Client *c;
+-- 
+2.7.4
+

dwm.1

@@ -92,6 +92,12 @@ Sets monocle layout.
 .B Mod1\-space
 Toggles between current and previous layout.
 .TP
+.B Mod1\-Control\-,
+Cycles backwards in layout list.
+.TP
+.B Mod1\-Control\-.
+Cycles forwards in layout list.
+.TP
 .B Mod1\-j
 Focus next window.
 .TP

dwm.c

@@ -157,6 +157,7 @@ static void configure(Client *c);
 static void configurenotify(XEvent *e);
 static void configurerequest(XEvent *e);
 static Monitor *createmon(void);
+static void cyclelayout(const Arg *arg);
 static void destroynotify(XEvent *e);
 static void detach(Client *c);
 static void detachstack(Client *c);
@@ -644,6 +645,23 @@ createmon(void)
 	return m;
 }
 
+void
+cyclelayout(const Arg *arg) {
+	Layout *l;
+	for(l = (Layout *)layouts; l != selmon->lt[selmon->sellt]; l++);
+	if(arg->i > 0) {
+		if(l->symbol && (l + 1)->symbol)
+			setlayout(&((Arg) { .v = (l + 1) }));
+		else
+			setlayout(&((Arg) { .v = layouts }));
+	} else {
+		if(l != layouts && (l - 1)->symbol)
+			setlayout(&((Arg) { .v = (l - 1) }));
+		else
+			setlayout(&((Arg) { .v = &layouts[LENGTH(layouts) - 2] }));
+	}
+}
+
 void
 destroynotify(XEvent *e)
 {