From 03330c081804659983811ce2f385834f2c46c143 Mon Sep 17 00:00:00 2001
From: Aaron Taylor <ataylor@subgeniuskitty.com>
Date: Fri, 3 Feb 2023 15:36:42 -0800
Subject: [PATCH] Added new layout with three columns, wide master in the
 middle. https://dwm.suckless.org/patches/three-column/

---
 README        |  3 +++
 config.def.h  |  2 ++
 config.h      |  2 ++
 layoutmenu.sh |  1 +
 tcl.c         | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 82 insertions(+)
 create mode 100644 tcl.c

diff --git a/README b/README
index fcb2ba4..fc3c58b 100644
--- a/README
+++ b/README
@@ -2,6 +2,9 @@ This git repository contains my personal branch of dwm-6.4.
 
 The changes made to stock dwm add the following abilities.
 
+  - Added new layout with three columns, master in the middle.
+    <https://dwm.suckless.org/patches/three-column/>
+
   - Draw per-client indicators in the tag section of the status bar.
     <https://dwm.suckless.org/patches/clientindicators/>
 
diff --git a/config.def.h b/config.def.h
index 7680b82..12bbb42 100644
--- a/config.def.h
+++ b/config.def.h
@@ -39,11 +39,13 @@ static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
 
+#include "tcl.c"
 static const Layout layouts[] = {
 	/* symbol     arrange function */
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "|||",      tcl },
 };
 
 /* key definitions */
diff --git a/config.h b/config.h
index 75b776e..9590e25 100644
--- a/config.h
+++ b/config.h
@@ -42,11 +42,13 @@ static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
 
+#include "tcl.c"
 static const Layout layouts[] = {
 	/* symbol     arrange function */
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "|||",      tcl },
 };
 
 /* key definitions */
diff --git a/layoutmenu.sh b/layoutmenu.sh
index 1bf95f2..3ca2f0f 100644
--- a/layoutmenu.sh
+++ b/layoutmenu.sh
@@ -4,4 +4,5 @@ cat <<EOF | xmenu
 []= Tiled Layout	0
 ><> Floating Layout	1
 [M] Monocle Layout	2
+||| 3-Column Layout	3
 EOF
diff --git a/tcl.c b/tcl.c
new file mode 100644
index 0000000..4c94914
--- /dev/null
+++ b/tcl.c
@@ -0,0 +1,74 @@
+void
+tcl(Monitor * m)
+{
+	int x, y, h, w, mw, sw, bdw;
+	unsigned int i, n;
+	Client * c;
+
+	for (n = 0, c = nexttiled(m->clients); c;
+	        c = nexttiled(c->next), n++);
+
+	if (n == 0)
+		return;
+
+	c = nexttiled(m->clients);
+
+	mw = m->mfact * m->ww;
+	sw = (m->ww - mw) / 2;
+	bdw = (2 * c->bw);
+	resize(c,
+	       n < 3 ? m->wx : m->wx + sw,
+	       m->wy,
+	       n == 1 ? m->ww - bdw : mw - bdw,
+	       m->wh - bdw,
+	       False);
+
+	if (--n == 0)
+		return;
+
+	w = (m->ww - mw) / ((n > 1) + 1);
+	c = nexttiled(c->next);
+
+	if (n > 1)
+	{
+		x = m->wx + ((n > 1) ? mw + sw : mw);
+		y = m->wy;
+		h = m->wh / (n / 2);
+
+		if (h < bh)
+			h = m->wh;
+
+		for (i = 0; c && i < n / 2; c = nexttiled(c->next), i++)
+		{
+			resize(c,
+			       x,
+			       y,
+			       w - bdw,
+			       (i + 1 == n / 2) ? m->wy + m->wh - y - bdw : h - bdw,
+			       False);
+
+			if (h != m->wh)
+				y = c->y + HEIGHT(c);
+		}
+	}
+
+	x = (n + 1 / 2) == 1 ? mw : m->wx;
+	y = m->wy;
+	h = m->wh / ((n + 1) / 2);
+
+	if (h < bh)
+		h = m->wh;
+
+	for (i = 0; c; c = nexttiled(c->next), i++)
+	{
+		resize(c,
+		       x,
+		       y,
+		       (i + 1 == (n + 1) / 2) ? w - bdw : w - bdw,
+		       (i + 1 == (n + 1) / 2) ? m->wy + m->wh - y - bdw : h - bdw,
+		       False);
+
+		if (h != m->wh)
+			y = c->y + HEIGHT(c);
+	}
+}
-- 
2.20.1