From 1d5bbf1fc8627507e62498a9335bd2bc9ed01896 Mon Sep 17 00:00:00 2001
From: Bakkeby <bakkeby@gmail.com>
Date: Mon, 10 Jan 2022 13:17:56 +0100
Subject: [PATCH] Adding placedir, moving clients around with behaviour similar
  to that of focusdir

---
 config.def.h |  4 +++
 dwm.c        | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)

diff --git a/config.def.h b/config.def.h
index a2ac963..e8719d3 100644
--- a/config.def.h
+++ b/config.def.h
@@ -67,6 +67,10 @@ static Key keys[] = {
 	{ MODKEY,                       XK_b,      togglebar,      {0} },
 	{ MODKEY,                       XK_j,      focusstack,     {.i = +1 } },
 	{ MODKEY,                       XK_k,      focusstack,     {.i = -1 } },
+	{ MODKEY|ControlMask,           XK_Left,   placedir,       {.i = 0 } }, // left
+	{ MODKEY|ControlMask,           XK_Right,  placedir,       {.i = 1 } }, // right
+	{ MODKEY|ControlMask,           XK_Up,     placedir,       {.i = 2 } }, // up
+	{ MODKEY|ControlMask,           XK_Down,   placedir,       {.i = 3 } }, // down
 	{ MODKEY,                       XK_i,      incnmaster,     {.i = +1 } },
 	{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
 	{ MODKEY,                       XK_h,      setmfact,       {.f = -0.05} },
diff --git a/dwm.c b/dwm.c
index a96f33c..7a20672 100644
--- a/dwm.c
+++ b/dwm.c
@@ -185,6 +185,7 @@ static void monocle(Monitor *m);
 static void motionnotify(XEvent *e);
 static void movemouse(const Arg *arg);
 static Client *nexttiled(Client *c);
+static void placedir(const Arg *arg);
 static void pop(Client *);
 static void propertynotify(XEvent *e);
 static void quit(const Arg *arg);
@@ -1203,6 +1204,103 @@ nexttiled(Client *c)
 	return c;
 }
 
+void
+placedir(const Arg *arg)
+{
+	Client *s = selmon->sel, *f = NULL, *c, *next, *fprior, *sprior;
+
+	if (!s || s->isfloating)
+		return;
+
+	unsigned int score = -1;
+	unsigned int client_score;
+	int dist;
+	int dirweight = 20;
+
+	next = s->next;
+	if (!next)
+		next = s->mon->clients;
+	for (c = next; c != s; c = next) {
+
+		next = c->next;
+		if (!next)
+			next = s->mon->clients;
+
+		if (!ISVISIBLE(c)) // || HIDDEN(c)
+			continue;
+
+		switch (arg->i) {
+		case 0: // left
+			dist = s->x - c->x - c->w;
+			client_score =
+				dirweight * MIN(abs(dist), abs(dist + s->mon->ww)) +
+				abs(s->y - c->y);
+			break;
+		case 1: // right
+			dist = c->x - s->x - s->w;
+			client_score =
+				dirweight * MIN(abs(dist), abs(dist + s->mon->ww)) +
+				abs(c->y - s->y);
+			break;
+		case 2: // up
+			dist = s->y - c->y - c->h;
+			client_score =
+				dirweight * MIN(abs(dist), abs(dist + s->mon->wh)) +
+				abs(s->x - c->x);
+			break;
+		default:
+		case 3: // down
+			dist = c->y - s->y - s->h;
+			client_score =
+				dirweight * MIN(abs(dist), abs(dist + s->mon->wh)) +
+				abs(c->x - s->x);
+			break;
+		}
+
+		if (((arg->i == 0 || arg->i == 2) && client_score <= score) || client_score < score) {
+			score = client_score;
+			f = c;
+		}
+	}
+
+	if (f && f != s) {
+		for (fprior = f->mon->clients; fprior && fprior->next != f; fprior = fprior->next);
+		for (sprior = s->mon->clients; sprior && sprior->next != s; sprior = sprior->next);
+
+		if (s == fprior) {
+			next = f->next;
+			if (sprior)
+				sprior->next = f;
+			else
+				f->mon->clients = f;
+			f->next = s;
+			s->next = next;
+		} else if (f == sprior) {
+			next = s->next;
+			if (fprior)
+				fprior->next = s;
+			else
+				s->mon->clients = s;
+			s->next = f;
+			f->next = next;
+		} else { // clients are not adjacent to each other
+			next = f->next;
+			f->next = s->next;
+			s->next = next;
+			if (fprior)
+				fprior->next = s;
+			else
+				s->mon->clients = s;
+			if (sprior)
+				sprior->next = f;
+			else
+				f->mon->clients = f;
+		}
+
+		arrange(f->mon);
+	}
+}
+
 void
 pop(Client *c)
 {
-- 
2.19.1