add layouts

config.def.h

@@ -42,6 +42,10 @@ static const Layout layouts[] = {
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "TTT",      bstack },
+	{ "===",      bstackhoriz },
+	{ "|M|",      centeredmaster },
+	{ ">M>",      centeredfloatingmaster },
 };
 
 /* key definitions */

dwm.c

@@ -148,7 +148,11 @@ static void arrange(Monitor *m);
 static void arrangemon(Monitor *m);
 static void attach(Client *c);
 static void attachstack(Client *c);
+static void bstack(Monitor *m);
+static void bstackhoriz(Monitor *m);
 static void buttonpress(XEvent *e);
+static void centeredmaster(Monitor *m);
+static void centeredfloatingmaster(Monitor *m);
 static void checkotherwm(void);
 static void cleanup(void);
 static void cleanupmon(Monitor *mon);
@@ -169,6 +173,7 @@ static void focus(Client *c);
 static void focusin(XEvent *e);
 static void focusmon(const Arg *arg);
 static void focusstack(const Arg *arg);
+static void gaplessgrid(Monitor *m);
 static Atom getatomprop(Client *c, Atom prop);
 static int getrootptr(int *x, int *y);
 static long getstate(Window w);
@@ -415,6 +420,68 @@ attachstack(Client *c)
 	c->mon->stack = c;
 }
 
+static void
+bstack(Monitor *m) {
+	int w, h, mh, mx, tx, ty, tw;
+	unsigned int i, n;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+	if (n > m->nmaster) {
+		mh = m->nmaster ? m->mfact * m->wh : 0;
+		tw = m->ww / (n - m->nmaster);
+		ty = m->wy + mh;
+	} else {
+		mh = m->wh;
+		tw = m->ww;
+		ty = m->wy;
+	}
+	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
+			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
+			mx += WIDTH(c);
+		} else {
+			h = m->wh - mh;
+			resize(c, tx, ty, tw - (2 * c->bw), h - (2 * c->bw), 0);
+			if (tw != m->ww)
+				tx += WIDTH(c);
+		}
+	}
+}
+
+static void
+bstackhoriz(Monitor *m) {
+	int w, mh, mx, tx, ty, th;
+	unsigned int i, n;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+	if (n > m->nmaster) {
+		mh = m->nmaster ? m->mfact * m->wh : 0;
+		th = (m->wh - mh) / (n - m->nmaster);
+		ty = m->wy + mh;
+	} else {
+		th = mh = m->wh;
+		ty = m->wy;
+	}
+	for (i = mx = 0, tx = m->wx, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			w = (m->ww - mx) / (MIN(n, m->nmaster) - i);
+			resize(c, m->wx + mx, m->wy, w - (2 * c->bw), mh - (2 * c->bw), 0);
+			mx += WIDTH(c);
+		} else {
+			resize(c, tx, ty, m->ww - (2 * c->bw), th - (2 * c->bw), 0);
+			if (th != m->wh)
+				ty += HEIGHT(c);
+		}
+	}
+}
+
 void
 buttonpress(XEvent *e)
 {
@@ -457,6 +524,109 @@ buttonpress(XEvent *e)
 			buttons[i].func(click == ClkTagBar && buttons[i].arg.i == 0 ? &arg : &buttons[i].arg);
 }
 
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n, h, mw, mx, my, oty, ety, tw;
+	Client *c;
+
+	/* count number of clients in the selected monitor */
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	/* initialize areas */
+	mw = m->ww;
+	mx = 0;
+	my = 0;
+	tw = mw;
+
+	if (n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		mw = m->nmaster ? m->ww * m->mfact : 0;
+		tw = m->ww - mw;
+
+		if (n - m->nmaster > 1) {
+			/* only one client */
+			mx = (m->ww - mw) / 2;
+			tw = (m->ww - mw) / 2;
+		}
+	}
+
+	oty = 0;
+	ety = 0;
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	if (i < m->nmaster) {
+		/* nmaster clients are stacked vertically, in the center
+		 * of the screen */
+		h = (m->wh - my) / (MIN(n, m->nmaster) - i);
+		resize(c, m->wx + mx, m->wy + my, mw - (2*c->bw),
+		       h - (2*c->bw), 0);
+		my += HEIGHT(c);
+	} else {
+		/* stack clients are stacked vertically */
+		if ((i - m->nmaster) % 2 ) {
+			h = (m->wh - ety) / ( (1 + n - i) / 2);
+			resize(c, m->wx, m->wy + ety, tw - (2*c->bw),
+			       h - (2*c->bw), 0);
+			ety += HEIGHT(c);
+		} else {
+			h = (m->wh - oty) / ((1 + n - i) / 2);
+			resize(c, m->wx + mx + mw, m->wy + oty,
+			       tw - (2*c->bw), h - (2*c->bw), 0);
+			oty += HEIGHT(c);
+		}
+	}
+}
+
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n, w, mh, mw, mx, mxo, my, myo, tx;
+	Client *c;
+
+	/* count number of clients in the selected monitor */
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	/* initialize nmaster area */
+	if (n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->nmaster ? m->ww * m->mfact : 0;
+			mh = m->nmaster ? m->wh * 0.9 : 0;
+		} else {
+			mh = m->nmaster ? m->wh * m->mfact : 0;
+			mw = m->nmaster ? m->ww * 0.9 : 0;
+		}
+		mx = mxo = (m->ww - mw) / 2;
+		my = myo = (m->wh - mh) / 2;
+	} else {
+		/* go fullscreen if all clients are in the master area */
+		mh = m->wh;
+		mw = m->ww;
+		mx = mxo = 0;
+		my = myo = 0;
+	}
+
+	for(i = tx = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++)
+	if (i < m->nmaster) {
+		/* nmaster clients are stacked horizontally, in the center
+		 * of the screen */
+		w = (mw + mxo - mx) / (MIN(n, m->nmaster) - i);
+		resize(c, m->wx + mx, m->wy + my, w - (2*c->bw),
+		       mh - (2*c->bw), 0);
+		mx += WIDTH(c);
+	} else {
+		/* stack clients are stacked horizontally */
+		w = (m->ww - tx) / (n - i);
+		resize(c, m->wx + tx, m->wy, w - (2*c->bw),
+		       m->wh - (2*c->bw), 0);
+		tx += WIDTH(c);
+	}
+}
+
 void
 checkotherwm(void)
 {
@@ -861,6 +1031,42 @@ focusstack(const Arg *arg)
 	}
 }
 
+void
+gaplessgrid(Monitor *m) {
+	unsigned int n, cols, rows, cn, rn, i, cx, cy, cw, ch;
+	Client *c;
+
+	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) ;
+	if(n == 0)
+		return;
+
+	/* grid dimensions */
+	for(cols = 0; cols <= n/2; cols++)
+		if(cols*cols >= n)
+			break;
+	if(n == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
+		cols = 2;
+	rows = n/cols;
+
+	/* window geometries */
+	cw = cols ? m->ww / cols : m->ww;
+	cn = 0; /* current column number */
+	rn = 0; /* current row number */
+	for(i = 0, c = nexttiled(m->clients); c; i++, c = nexttiled(c->next)) {
+		if(i/rows + 1 > cols - n%cols)
+			rows = n/cols + 1;
+		ch = rows ? m->wh / rows : m->wh;
+		cx = m->wx + cn*cw;
+		cy = m->wy + rn*ch;
+		resize(c, cx, cy, cw - 2 * c->bw, ch - 2 * c->bw, False);
+		rn++;
+		if(rn >= rows) {
+			rn = 0;
+			cn++;
+		}
+	}
+}
+
 Atom
 getatomprop(Client *c, Atom prop)
 {