From d1eb2061c619d0bbd7a0ecda0fe77409f3a6c399 Mon Sep 17 00:00:00 2001
From: Ben Collerson <benc@benc.cc>
Date: Fri, 29 Dec 2023 19:02:11 +1000
Subject: [PATCH] column layout

---
 config.def.h |  2 ++
 dwl.c        | 28 ++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/config.def.h b/config.def.h
index a8ed61d9..edb30cae 100644
--- a/config.def.h
+++ b/config.def.h
@@ -34,6 +34,7 @@ static const Layout layouts[] = {
 	{ "[]=",      tile },
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "||",       col },
 };
 
 /* monitors */
@@ -134,6 +135,7 @@ static const Key keys[] = {
 	{ MODKEY,                    XKB_KEY_t,          setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                    XKB_KEY_f,          setlayout,      {.v = &layouts[1]} },
 	{ MODKEY,                    XKB_KEY_m,          setlayout,      {.v = &layouts[2]} },
+	{ MODKEY,                    XKB_KEY_c,          setlayout,      {.v = &layouts[3]} },
 	{ MODKEY,                    XKB_KEY_space,      setlayout,      {0} },
 	{ MODKEY|WLR_MODIFIER_SHIFT, XKB_KEY_space,      togglefloating, {0} },
 	{ MODKEY,                    XKB_KEY_e,         togglefullscreen, {0} },
diff --git a/dwl.c b/dwl.c
index 4d19357f..63d80da7 100644
--- a/dwl.c
+++ b/dwl.c
@@ -243,6 +243,7 @@ static void checkidleinhibitor(struct wlr_surface *exclude);
 static void cleanup(void);
 static void cleanupmon(struct wl_listener *listener, void *data);
 static void closemon(Monitor *m);
+static void col(Monitor *m);
 static void commitlayersurfacenotify(struct wl_listener *listener, void *data);
 static void commitnotify(struct wl_listener *listener, void *data);
 static void createdecoration(struct wl_listener *listener, void *data);
@@ -704,6 +705,33 @@ closemon(Monitor *m)
 	printstatus();
 }
 
+void
+col(Monitor *m)
+{
+	Client *c;
+	unsigned int n = 0, i = 0;
+
+	wl_list_for_each(c, &clients, link)
+		if (VISIBLEON(c, m) && !c->isfloating && !c->isfullscreen)
+			n++;
+
+	wl_list_for_each(c, &clients, link) {
+		if (!VISIBLEON(c, m) || c->isfloating || c->isfullscreen)
+			continue;
+		resize(
+			c,
+			(struct wlr_box){
+				.x = m->w.x + i * m->w.width / n,
+				.y = m->w.y,
+				.width = m->w.width / n,
+				.height = m->w.height
+			},
+			0
+		);
+		i++;
+	}
+}
+
 void
 commitlayersurfacenotify(struct wl_listener *listener, void *data)
 {
-- 
2.43.0