From bbd50f20f2edd41b19d2fcca498bd4cc8376ab2a Mon Sep 17 00:00:00 2001
From: Benjamin Chausse <benjamin@chausse.xyz>
Date: Fri, 26 Jan 2024 19:10:15 -0500
Subject: add vanilla cfatcs

---
 config.def.h |  3 +++
 dwm.c        | 34 +++++++++++++++++++++++++++++++---
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/config.def.h b/config.def.h
index 804752e..18b4562 100644
--- a/config.def.h
+++ b/config.def.h
@@ -91,6 +91,9 @@ static const Key keys[] = {
 	{ MODKEY,                       XK_d,      incnmaster,     {.i = -1 } },
 	{ MODKEY,                       XK_h,      setmfact,       {.f = -0.05} },
 	{ MODKEY,                       XK_l,      setmfact,       {.f = +0.05} },
+	{ MODKEY|ShiftMask,             XK_b,      setcfact,       {.f = +0.25} },
+	{ MODKEY|ShiftMask,             XK_n,      setcfact,       {.f = -0.25} },
+	{ MODKEY|ShiftMask,             XK_m,      setcfact,       {.f =  0.00} },
 	{ MODKEY|ShiftMask,             XK_l,      movestack,      {.i = +1 } },
 	{ MODKEY|ShiftMask,             XK_h,      movestack,      {.i = -1 } },
 	{ MODKEY,                       XK_Return, zoom,           {0} },
diff --git a/dwm.c b/dwm.c
index f8962e0..3e6be08 100644
--- a/dwm.c
+++ b/dwm.c
@@ -88,6 +88,7 @@ typedef struct Client Client;
 struct Client {
 	char name[256];
 	float mina, maxa;
+	float cfact;
 	int x, y, w, h;
 	int oldx, oldy, oldw, oldh;
 	int basew, baseh, incw, inch, maxw, maxh, minw, minh, hintsvalid;
@@ -207,6 +208,7 @@ static void setclientstate(Client *c, long state);
 static void setfocus(Client *c);
 static void setfullscreen(Client *c, int fullscreen);
 static void setlayout(const Arg *arg);
+static void setcfact(const Arg *arg);
 static void setmfact(const Arg *arg);
 static void setup(void);
 static void seturgent(Client *c, int urg);
@@ -1159,6 +1161,7 @@ manage(Window w, XWindowAttributes *wa)
 	c->w = c->oldw = wa->width;
 	c->h = c->oldh = wa->height;
 	c->oldbw = wa->border_width;
+	c->cfact = 1.0;
 
 	updatetitle(c);
 	if (XGetTransientForHint(dpy, w, &trans) && (t = wintoclient(trans))) {
@@ -1689,6 +1692,23 @@ setlayout(const Arg *arg)
 		drawbar(selmon);
 }
 
+void setcfact(const Arg *arg) {
+	float f;
+	Client *c;
+
+	c = selmon->sel;
+
+	if(!arg || !c || !selmon->lt[selmon->sellt]->arrange)
+		return;
+	f = arg->f + c->cfact;
+	if(arg->f == 0.0)
+		f = 1.0;
+	else if(f < 0.25 || f > 4.0)
+		return;
+	c->cfact = f;
+	arrange(selmon);
+}
+
 /* arg > 1.0 will set mfact absolutely */
 void
 setmfact(const Arg *arg)
@@ -1871,9 +1891,15 @@ void
 tile(Monitor *m)
 {
 	unsigned int i, n, h, mw, my, ty;
+	float mfacts = 0, sfacts = 0;
 	Client *c;
 
-	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
+		if (n < m->nmaster)
+			mfacts += c->cfact;
+		else
+			sfacts += c->cfact;
+	}
 	if (n == 0)
 		return;
 
@@ -1883,15 +1909,17 @@ tile(Monitor *m)
 		mw = m->ww;
 	for (i = my = ty = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
 		if (i < m->nmaster) {
-			h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+			h = (m->wh - my) * (c->cfact / mfacts);
 			resize(c, m->wx, m->wy + my, mw - (2*c->bw), h - (2*c->bw), 0);
 			if (my + HEIGHT(c) < m->wh)
 				my += HEIGHT(c);
+     mfacts -= c->cfact;
 		} else {
-			h = (m->wh - ty) / (n - i);
+			h = (m->wh - ty) * (c->cfact / sfacts);
 			resize(c, m->wx + mw, m->wy + ty, m->ww - mw - (2*c->bw), h - (2*c->bw), 0);
 			if (ty + HEIGHT(c) < m->wh)
 				ty += HEIGHT(c);
+     sfacts -= c->cfact;
 		}
 }
 
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