Adding flextile patch

10 files changed, 602 insertions, 9 deletions

diff --git a/README.md b/README.md
index d5eeb0b..3a79434 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 ### Changelog:
 
-2019-09-09 - Added deck, fibonacci (dwindle and spiral), gridmode, gapplessgrid, horizgrid, nrowgrid and centeredmaster layouts
+2019-09-09 - Added deck, fibonacci (dwindle and spiral), gridmode, gapplessgrid, horizgrid, nrowgrid, centeredmaster and flextile layouts
 
 2019-09-08 - Added cfacts and vanitygaps patches, added bstack and bstackhoriz layouts
 
@@ -127,6 +127,13 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
    - [fibonacci](https://dwm.suckless.org/patches/fibonacci/)
       - fibonacci (dwindle and spiral) layouts
 
+   - [flextile](https://dwm.suckless.org/patches/flextile/)
+      - expanded flextile patch supporting:
+         - horizontal and vertical split
+         - centered horizontal and vertical split
+         - pertag, cfacts, rmaster, vanitygaps patches
+         - tile, deck, monocle, centeredmaster, bstack, bstackhoriz, gapplessgrid and more
+
    - [gapplessgrid](https://dwm.suckless.org/patches/gaplessgrid/)
       - gappless grid layout
 
diff --git a/config.def.h b/config.def.h
index c5f0757..2cf796e 100644
--- a/config.def.h
+++ b/config.def.h
@@ -93,6 +93,14 @@ static const float mfact     = 0.55; /* factor of master area size [0.05..0.95]
 static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 
+#if FLEXTILE_LAYOUT
+static const int layoutaxis[] = {
+	SPLIT_VERTICAL,   /* layout axis: 1 = x, 2 = y; negative values mirror the layout, setting the master area to the right / bottom instead of left / top */
+	TOP_TO_BOTTOM,    /* master axis: 1 = x (from left to right), 2 = y (from top to bottom), 3 = z (monocle), 4 = grid */
+	TOP_TO_BOTTOM,    /* stack axis:  1 = x (from left to right), 2 = y (from top to bottom), 3 = z (monocle), 4 = grid */
+};
+#endif
+
 #if NROWGRID_LAYOUT
 #define FORCE_VSPLIT 1
 #endif
@@ -127,6 +135,9 @@ static const Layout layouts[] = {
 	#if FIBONACCI_DWINDLE_LAYOUT
 	{ "[\\]",     dwindle },
 	#endif
+	#if FLEXTILE_LAYOUT
+	{ "[]=",	flextile },
+	#endif
 	#if GRIDMODE_LAYOUT
 	{ "HHH",      grid },
 	#endif
@@ -204,6 +215,19 @@ static Key keys[] = {
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
+	#if FLEXTILE_LAYOUT
+	{ MODKEY,                       XK_w,      setflexlayout,     {.i = 293 } }, // centered master
+	{ MODKEY,                       XK_e,      setflexlayout,     {.i = 273 } }, // bstackhoriz layout
+	{ MODKEY,                       XK_r,      setflexlayout,     {.i = 272 } }, // bstack layout
+	{ MODKEY,                       XK_g,      setflexlayout,     {.i = 263 } }, // tile + grid layout
+	{ MODKEY|ControlMask,           XK_w,      setflexlayout,     {.i =   7 } }, // grid
+	{ MODKEY|ControlMask,           XK_e,      setflexlayout,     {.i = 262 } }, // deck layout
+	{ MODKEY|ControlMask,           XK_r,      setflexlayout,     {.i =   6 } }, // monocle
+	{ MODKEY|ControlMask,           XK_t,      rotatelayoutaxis,  {.i = 0} },    /* flextile, 0 = layout axis */
+	{ MODKEY|ControlMask,           XK_Tab,    rotatelayoutaxis,  {.i = 1} },    /* flextile, 1 = master axis */
+	{ MODKEY|ControlMask|ShiftMask, XK_Tab,    rotatelayoutaxis,  {.i = 2} },    /* flextile, 2 = stack axis */
+	{ MODKEY|ControlMask,           XK_Return, mirrorlayout,      {0} },         /* flextile, flip master and stack areas */
+	#endif // FLEXTILE_LAYOUT
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 	#if TOGGLEFULLSCREEN_PATCH
diff --git a/dwm.c b/dwm.c
index b2dbb37..495deb6 100644
--- a/dwm.c
+++ b/dwm.c
@@ -142,6 +142,9 @@ typedef struct Pertag Pertag;
 struct Monitor {
 	char ltsymbol[16];
 	float mfact;
+	#if FLEXTILE_LAYOUT
+	int ltaxis[3];
+	#endif // FLEXTILE_LAYOUT
 	int nmaster;
 	int num;
 	int by;               /* bar geometry */
@@ -812,6 +815,12 @@ createmon(void)
 	m->lt[0] = &layouts[0];
 	m->lt[1] = &layouts[1 % LENGTH(layouts)];
 	strncpy(m->ltsymbol, layouts[0].symbol, sizeof m->ltsymbol);
+	#if FLEXTILE_LAYOUT
+	m->ltaxis[0] = layoutaxis[0];
+	m->ltaxis[1] = layoutaxis[1];
+	m->ltaxis[2] = layoutaxis[2];
+	#endif // FLEXTILE_LAYOUT
+
 	#if PERTAG_PATCH
 	if (!(m->pertag = (Pertag *)calloc(1, sizeof(Pertag))))
 		die("fatal: could not malloc() %u bytes\n", sizeof(Pertag));
@@ -828,6 +837,13 @@ createmon(void)
 		m->pertag->ltidxs[i][1] = m->lt[1];
 		m->pertag->sellts[i] = m->sellt;
 
+		#if FLEXTILE_LAYOUT
+		/* init flextile axes */
+		m->pertag->ltaxes[i][0] = m->ltaxis[0];
+		m->pertag->ltaxes[i][1] = m->ltaxis[1];
+		m->pertag->ltaxes[i][2] = m->ltaxis[2];
+		#endif // FLEXTILE_LAYOUT
+
 		#if PERTAGBAR_PATCH
 		/* init showbar */
 		m->pertag->showbars[i] = m->showbar;
diff --git a/patch/fibonacci.c b/patch/fibonacci.c
index d989078..bc911a9 100644
--- a/patch/fibonacci.c
+++ b/patch/fibonacci.c
@@ -5,16 +5,9 @@ fibonacci(Monitor *m, int s)
 	unsigned int i, n;
 	int nx, ny, nw, nh;
 	int oh, ov, ih, iv;
-	#if CFACTS_PATCH
-	float mfacts, sfacts;
-	#endif // CFACTS_PATCH
 	Client *c;
 
-	#if CFACTS_PATCH
-	getgaps(m, &oh, &ov, &ih, &iv, &n, &mfacts, &sfacts);
-	#else
 	getgaps(m, &oh, &ov, &ih, &iv, &n);
-	#endif // CFACTS_PATCH
 
 	if (n == 0)
 		return;
diff --git a/patch/flextile.c b/patch/flextile.c
new file mode 100644
index 0000000..5ff9ef1
--- /dev/null
+++ b/patch/flextile.c
@@ -0,0 +1,519 @@
+/*
+ * Set predefined flextile layout.
+ *
+ * The arg int value is a binary representation of the setup where certain bits have different
+ * meanings, similar to how Linux permissions work.
+ *
+ * The first two bits represents the stack axis, bits 3 and 4 the master axis. Bits 5 and 6
+ * are used to control the layout while bit 7 indicates whether or not the layout is mirrored.
+ * The 8th bit is reserved while bit 9 through 12 control nmaster with up to 15 clients in the
+ * master stack.
+ *
+ * Bitwise layout:
+ *
+ *    0000          (nmaster: 0-15 = clients in master stack)
+ *        0         (reserved)
+ *         0        (orientation: 0 = normal, 1 = mirror)
+ *          00      (layout: 00 = vertical, 01 = horizontal, 10 = centered (vert), 11 = centered (horz))
+ *            00    (master axis: 00 = left to right, 01 = top to bottom, 10 = monocle, 11 = grid)
+ *              00  (stack axis:  00 = left to right, 01 = top to bottom, 10 = monocle, 11 = grid)
+ *
+ * Examples:
+ *    binary         int  layout
+ *    --------------------------
+ *    000000000110     6  monocle
+ *    000100000110   262  deck layout
+ *    000100010000   272  bstack layout
+ *    000100010001   273  bstackhoriz layout
+ *    000000000111     7  grid layout
+ *    000100000101   261  default tile layout
+ *    000100100101   293  centered master
+ *    000100000111   263  default tile layout with grid stack
+ */
+void
+setflexlayout(const Arg *arg)
+{
+	int i;
+
+	/* Find flextile layout */
+	for (i = 0; i < LENGTH(layouts); i++)
+		if (layouts[i].arrange == flextile)
+			break;
+
+	selmon->nmaster = ((arg->i & 0x0F00) >> 8);
+	selmon->ltaxis[0] = (1 + ((arg->i & 0x30) >> 4)) * (arg->i & 0x40 ? -1 : 1);
+	selmon->ltaxis[1] = 1 + ((arg->i & 0xC) >> 2);
+	selmon->ltaxis[2] = 1 + (arg->i & 0x3);
+
+	#if PERTAG_PATCH
+	selmon->pertag->nmasters[selmon->pertag->curtag] = selmon->nmaster;
+	selmon->pertag->ltaxes[selmon->pertag->curtag][0] = selmon->ltaxis[0];
+	selmon->pertag->ltaxes[selmon->pertag->curtag][1] = selmon->ltaxis[1];
+	selmon->pertag->ltaxes[selmon->pertag->curtag][2] = selmon->ltaxis[2];
+	#endif
+
+	setlayout(&((Arg) { .v = &layouts[i] }));
+}
+
+#if VANITYGAPS_PATCH
+static void
+flextile(Monitor *m)
+{
+	unsigned int i, n, nc = 0, sc = 0, lt, cn = 0, rn = 0, cc = 0; // counters
+	int cols = 1, rows = 1;
+	int x, y, h, w;     // master x, y, height, width
+	int sx, sy, sh, sw; // stack x, y, height, width
+	int ox, oy;         // other stack x, y (centered layout)
+	int oh, ov, ih, iv; // gaps outer/inner horizontal/vertical
+
+	float facts, sfacts, ofacts;
+	Client *c;
+
+	getgaps(m, &oh, &ov, &ih, &iv, &n);
+	setflexsymbols(m, n);
+
+	if (n == 0)
+		return;
+
+	/* No outer gap if full screen monocle */
+	if ((!m->nmaster && m->ltaxis[STACK] == MONOCLE) || (n <= m->nmaster && m->ltaxis[MASTER] == MONOCLE)) {
+		ox = sx = x = m->wx;
+		oy = sy = y = m->wy;
+		sh = h = m->wh;
+		sw = w = m->ww;
+	} else {
+		ox = sx = x = m->wx + ov;
+		oy = sy = y = m->wy + oh;
+		sh = h = m->wh - 2*oh;
+		sw = w = m->ww - 2*ov;
+	}
+	sc = n - m->nmaster;
+
+	#if CFACTS_PATCH
+	getfacts(m, &facts, &sfacts);
+	ofacts = sfacts;
+	#else
+	facts = MIN(n, m->nmaster);
+	ofacts = sfacts = sc;
+	#endif // CFACTS_PATCH
+
+	/* Split master into master + stack if we have enough clients */
+	if (m->nmaster && n > m->nmaster) {
+		if (abs(m->ltaxis[LAYOUT]) == SPLIT_VERTICAL
+				|| (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V && n == m->nmaster + 1)) {
+			sw = (w - iv) * (1 - m->mfact);
+			w = (w - iv) * m->mfact;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				x = sx + sw + iv;
+			else
+				sx = x + w + iv;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_HORIZONTAL
+				|| (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H && n == m->nmaster + 1)) {
+			sh = (h - ih) * (1 - m->mfact);
+			h = (h - ih) * m->mfact;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				y = sy + sh + ih;
+			else
+				sy = y + h + ih;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V) {
+			sw = (w - 2*iv) * (1 - m->mfact) / 2;
+			w = (w - 2*iv) * m->mfact;
+			x = sx + sw + iv;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				ox = x + w + iv;
+			else
+				sx = x + w + iv;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H) {
+			sh = (h - 2*ih) * (1 - m->mfact) / 2;
+			h = (h - 2*ih) * m->mfact;
+			y = sy + sh + ih;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				oy = y + h + ih;
+			else
+				sy = y + h + ih;
+		}
+
+		if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V || abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H) {
+			sc = (n - m->nmaster) / 2 + ((n - m->nmaster) % 2 > 0 ? 1 : 0);
+			facts = sfacts = ofacts = 0;
+			for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+				#if CFACTS_PATCH
+				if (i < m->nmaster)
+					facts += c->cfact; // total factor of master area
+				else if (sc && i < m->nmaster + sc)
+					sfacts += c->cfact; // total factor of first stack area
+				else
+					ofacts += c->cfact; // total factor of second stack area
+				#else
+				if (i < m->nmaster)
+					facts += 1;
+				else if (sc && i < m->nmaster + sc)
+					sfacts += 1;
+				else
+					ofacts += 1;
+				#endif // CFACTS_PATCH
+			}
+		}
+	}
+
+	for (i = 0, lt = MASTER, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i == 0 || (m->nmaster && i == m->nmaster) || i == (m->nmaster + sc)) {
+			nc = MIN(n, m->nmaster);
+			if (!m->nmaster || i == m->nmaster) { // switch to stack area
+				x = sx, y = sy, h = sh, w = sw, facts = sfacts, lt = STACK;
+				nc = sc;
+			} else if (i > 0 && i == (m->nmaster + sc)) { // switch to second stack area
+				x = ox, y = oy, h = sh, w = sw, nc = n - i, facts = ofacts;
+			}
+
+			if (m->ltaxis[lt] == LEFT_TO_RIGHT)
+				w -= iv * (nc - 1);
+			else if (m->ltaxis[lt] == TOP_TO_BOTTOM)
+				h -= ih * (nc - 1);
+			else if (m->ltaxis[lt] == GRID) {
+				/* grid dimensions */
+				for (cols = 1; cols <= nc/2; cols++)
+					if (cols*cols >= nc)
+						break;
+				if (nc == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
+					cols = 2;
+				rows = nc/cols;
+				cn = rn = cc = 0; // reset cell no, row no, client count
+			}
+		}
+
+		if (m->ltaxis[lt] == LEFT_TO_RIGHT) {
+			#if CFACTS_PATCH
+			resize(c, x, y, w * (c->cfact / facts) - (2*c->bw), h - (2*c->bw), 0);
+			#else
+			resize(c, x, y, w / facts - (2*c->bw), h - (2*c->bw), 0);
+			#endif // CFACTS_PATCH
+			x = x + WIDTH(c) + iv;
+		} else if (m->ltaxis[lt] == TOP_TO_BOTTOM) {
+			#if CFACTS_PATCH
+			resize(c, x, y, w - (2*c->bw), h * (c->cfact / facts) - (2*c->bw), 0);
+			#else
+			resize(c, x, y, w - (2*c->bw), h / facts - (2*c->bw), 0);
+			#endif // CFACTS_PATCH
+			y = y + HEIGHT(c) + ih;
+		} else if (m->ltaxis[lt] == MONOCLE) {
+			resize(c, x, y, w - (2*c->bw), h - (2*c->bw), 0);
+		} else if (m->ltaxis[lt] == GRID) {
+			if (cc/rows + 1 > cols - nc%cols)
+				rows = nc/cols + 1;
+			resize(c,
+				x + cn*((w - iv*(cols - 1)) / cols + iv),
+				y + rn*((h - ih*(rows - 1)) / rows + ih),
+				(w - iv*(cols - 1)) / cols,
+				(h - ih*(rows - 1)) / rows,
+				0);
+			rn++;
+			cc++;
+			if (rn >= rows) {
+				rn = 0;
+				cn++;
+			}
+		}
+	}
+}
+#else
+static void
+flextile(Monitor *m)
+{
+	unsigned int i, n, nc = 0, sc = 0, lt, cn = 0, rn = 0, cc = 0; // counters
+	int cols = 1, rows = 1;
+	int x, y, h, w;     // master x, y, height, width
+	int sx, sy, sh, sw; // stack x, y, height, width
+	int ox, oy;         // other stack x, y (centered layout)
+
+	float facts, sfacts, ofacts;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	setflexsymbols(m, n);
+	if (n == 0)
+		return;
+
+	ox = sx = x = m->wx;
+	oy = sy = y = m->wy;
+	sh = h = m->wh;
+	sw = w = m->ww;
+	sc = n - m->nmaster;
+
+	#if CFACTS_PATCH
+	getfacts(m, &facts, &sfacts);
+	ofacts = sfacts;
+	#else
+	facts = MIN(n, m->nmaster);
+	ofacts = sfacts = sc;
+	#endif // CFACTS_PATCH
+
+	/* Split master into master + stack if we have enough clients */
+	if (m->nmaster && n > m->nmaster) {
+		if (abs(m->ltaxis[LAYOUT]) == SPLIT_VERTICAL
+				|| (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V && n == m->nmaster + 1)) {
+			sw = w * (1 - m->mfact);
+			w = w * m->mfact;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				x = sx + sw;
+			else
+				sx = x + w;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_HORIZONTAL
+				|| (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H && n == m->nmaster + 1)) {
+			sh = h * (1 - m->mfact);
+			h = h * m->mfact;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				y = sy + sh;
+			else
+				sy = y + h;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V) {
+			sw = w * (1 - m->mfact) / 2;
+			w = w * m->mfact;
+			x = sx + sw;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				ox = x + w;
+			else
+				sx = x + w;
+		} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H) {
+			sh = h * (1 - m->mfact) / 2;
+			h = h * m->mfact;
+			y = sy + sh;
+			if (m->ltaxis[LAYOUT] < 0) // mirror
+				oy = y + h;
+			else
+				sy = y + h;
+		}
+
+		if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V || abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H) {
+			sc = (n - m->nmaster) / 2 + ((n - m->nmaster) % 2 > 0 ? 1 : 0);
+			facts = sfacts = ofacts = 0;
+			for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+				#if CFACTS_PATCH
+				if (i < m->nmaster)
+					facts += c->cfact; // total factor of master area
+				else if (sc && i < m->nmaster + sc)
+					sfacts += c->cfact; // total factor of first stack area
+				else
+					ofacts += c->cfact; // total factor of second stack area
+				#else
+				if (i < m->nmaster)
+					facts += 1;
+				else if (sc && i < m->nmaster + sc)
+					sfacts += 1;
+				else
+					ofacts += 1;
+				#endif // CFACTS_PATCH
+			}
+		}
+	}
+
+	for (i = 0, lt = MASTER, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i == 0 || (m->nmaster && i == m->nmaster) || i == (m->nmaster + sc)) {
+			nc = MIN(n, m->nmaster);
+			if (!m->nmaster || i == m->nmaster) { // switch to stack area
+				x = sx, y = sy, h = sh, w = sw, facts = sfacts, lt = STACK;
+				nc = sc;
+			} else if (i > 0 && i == (m->nmaster + sc)) { // switch to second stack area
+				x = ox, y = oy, h = sh, w = sw, nc = n - i, facts = ofacts;
+			}
+
+			if (m->ltaxis[lt] == GRID) {
+				/* grid dimensions */
+				for (cols = 1; cols <= nc/2; cols++)
+					if (cols*cols >= nc)
+						break;
+				if (nc == 5) /* set layout against the general calculation: not 1:2:2, but 2:3 */
+					cols = 2;
+				rows = nc/cols;
+				cn = rn = cc = 0; // reset cell no, row no, client count
+			}
+		}
+
+		if (m->ltaxis[lt] == LEFT_TO_RIGHT) {
+			#if CFACTS_PATCH
+			resize(c, x, y, w * (c->cfact / facts) - (2*c->bw), h - (2*c->bw), 0);
+			#else
+			resize(c, x, y, w / facts - (2*c->bw), h - (2*c->bw), 0);
+			#endif // CFACTS_PATCH
+			x = x + WIDTH(c);
+		} else if (m->ltaxis[lt] == TOP_TO_BOTTOM) {
+			#if CFACTS_PATCH
+			resize(c, x, y, w - (2*c->bw), h * (c->cfact / facts) - (2*c->bw), 0);
+			#else
+			resize(c, x, y, w - (2*c->bw), h / facts - (2*c->bw), 0);
+			#endif // CFACTS_PATCH
+			y = y + HEIGHT(c);
+		} else if (m->ltaxis[lt] == MONOCLE) {
+			resize(c, x, y, w - (2*c->bw), h - (2*c->bw), 0);
+		} else if (m->ltaxis[lt] == GRID) {
+			if (cc/rows + 1 > cols - nc%cols)
+				rows = nc/cols + 1;
+			resize(c,
+				x + cn * (w / cols),
+				y + rn * (h / rows),
+				w / cols,
+				h / rows,
+				0);
+			rn++;
+			cc++;
+			if (rn >= rows) {
+				rn = 0;
+				cn++;
+			}
+		}
+	}
+}
+#endif
+
+
+static void
+setflexsymbols(Monitor *m, unsigned int n)
+{
+	char sym1 = 61, sym2 = 93, sym3 = 61, sym = 0;
+
+	/* Predefined layouts */
+	/* bstack */
+	if (abs(m->ltaxis[LAYOUT]) == SPLIT_HORIZONTAL && m->ltaxis[MASTER] == LEFT_TO_RIGHT && m->ltaxis[STACK] == LEFT_TO_RIGHT) {
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, (m->ltaxis[LAYOUT] < 0 ? "⚍⚍⚍" : "⚎⚎⚎"));
+		return;
+	}
+
+	/* bstackhoriz */
+	if (abs(m->ltaxis[LAYOUT]) == SPLIT_HORIZONTAL && m->ltaxis[MASTER] == LEFT_TO_RIGHT && m->ltaxis[STACK] == TOP_TO_BOTTOM) {
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, (m->ltaxis[LAYOUT] < 0 ? "☳☳☳" : "☶☶☶"));
+		return;
+	}
+
+	/* centered master horizontal split */
+	if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H && m->ltaxis[MASTER] == TOP_TO_BOTTOM && m->ltaxis[STACK] == TOP_TO_BOTTOM) {
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, "☰☰☰");
+		return;
+	}
+
+	if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H && m->ltaxis[MASTER] == LEFT_TO_RIGHT && m->ltaxis[STACK] == LEFT_TO_RIGHT) {
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, "☵☵☵");
+		return;
+	}
+
+	/* monocle */
+	if (n <= 1 && ((!m->nmaster && m->ltaxis[STACK] == MONOCLE) || (n <= m->nmaster && m->ltaxis[MASTER] == MONOCLE))) {
+		snprintf(m->ltsymbol, sizeof m->ltsymbol, "[M]");
+		return;
+	}
+
+	/* Layout symbols */
+	if (abs(m->ltaxis[LAYOUT]) == SPLIT_VERTICAL) {
+		if (m->nmaster > 1 || m->ltaxis[MASTER] == MONOCLE)
+			sym2 = 124; // |
+		else if (m->ltaxis[LAYOUT] < 0)
+			sym2 = 91; // [
+		else
+			sym2 = 93; // ]
+	} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_HORIZONTAL) {
+		if (m->nmaster > 1 || m->ltaxis[MASTER] == MONOCLE)
+			sym2 = 58; // :
+		else if (m->ltaxis[LAYOUT] < 0)
+			sym2 = 91; // [
+		else
+			sym2 = 93; // ]
+	} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_V) {
+		if (m->ltaxis[LAYOUT] < 0)
+			sym2 = 87; // W
+		else
+			sym2 = 77; // M
+	} else if (abs(m->ltaxis[LAYOUT]) == SPLIT_CENTERED_H) {
+		if (m->ltaxis[LAYOUT] < 0)
+			sym2 = 87; // W
+		else
+			sym2 = 77; // M
+	}
+
+	if (m->ltaxis[MASTER] == LEFT_TO_RIGHT)
+		sym1 = 124; // | ⏸
+	else if (m->ltaxis[MASTER] == TOP_TO_BOTTOM)
+		sym1 = 61; // =
+	else if (m->ltaxis[MASTER] == MONOCLE)
+		sym1 = MIN(n, m->nmaster);
+	else if (m->ltaxis[MASTER] == GRID)
+		sym1 = 35; // #
+
+	if (m->ltaxis[STACK] == LEFT_TO_RIGHT)
+		sym3 = 124; // |
+	else if (m->ltaxis[STACK] == TOP_TO_BOTTOM)
+		sym3 = 61; // =
+	else if (m->ltaxis[STACK] == MONOCLE)
+		sym3 = n - m->nmaster;
+	else if (m->ltaxis[STACK] == GRID)
+		sym3 = 35; // #
+
+
+	/* Generic symbols */
+	if (!m->nmaster) {
+		if (m->ltaxis[STACK] == MONOCLE) {
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%d%c", 91, sym3, 93);
+		} else {
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%c%c", sym3, sym3, sym3);
+		}
+		return;
+	}
+
+	if (n <= m->nmaster) {
+		if (m->ltaxis[MASTER] == MONOCLE) {
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%d%c", 91, sym1, 93);
+		} else {
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%c%c", 91, sym1, 93);
+		}
+	} else {
+		if (m->ltaxis[LAYOUT] < 0) {
+			sym = sym1;
+			sym1 = sym3;
+			sym3 = sym;
+		}
+		if (m->nmaster == 1 && abs(m->ltaxis[LAYOUT]) <= SPLIT_HORIZONTAL && m->ltaxis[MASTER] != MONOCLE) {
+			if (m->ltaxis[LAYOUT] > 0)
+				sym1 = 91;
+			else
+				sym3 = 93;
+		}
+		if (m->ltaxis[MASTER] == MONOCLE && m->ltaxis[STACK] == MONOCLE)
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%d%c%d", sym1, sym2, sym3);
+		else if ((m->nmaster && m->ltaxis[MASTER] == MONOCLE && m->ltaxis[LAYOUT] > 0) || (m->ltaxis[STACK] == MONOCLE && m->ltaxis[LAYOUT] < 0))
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%d%c%c", sym1, sym2, sym3);
+		else if ((m->ltaxis[STACK] == MONOCLE && m->ltaxis[LAYOUT] > 0) || (m->nmaster && m->ltaxis[MASTER] == MONOCLE && m->ltaxis[LAYOUT] < 0))
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%c%d", sym1, sym2, n - m->nmaster);
+		else
+			snprintf(m->ltsymbol, sizeof m->ltsymbol, "%c%c%c", sym1, sym2, sym3);
+	}
+}
+
+/* Mirror layout axis for flextile */
+void
+mirrorlayout(const Arg *arg)
+{
+	if (!selmon->lt[selmon->sellt]->arrange)
+		return;
+	selmon->ltaxis[0] *= -1;
+	#if PERTAG_PATCH
+	selmon->pertag->ltaxes[selmon->pertag->curtag][0] = selmon->ltaxis[0];
+	#endif // PERTAG_PATCH
+	arrange(selmon);
+}
+
+/* Rotate layout axis for flextile */
+void
+rotatelayoutaxis(const Arg *arg)
+{
+	if (!selmon->lt[selmon->sellt]->arrange)
+		return;
+	if (arg->i == 0) {
+		if (selmon->ltaxis[0] > 0)
+			selmon->ltaxis[0] = selmon->ltaxis[0] + 1 > 4 ? 1 : selmon->ltaxis[0] + 1;
+		else
+			selmon->ltaxis[0] = selmon->ltaxis[0] - 1 < -4 ? -1 : selmon->ltaxis[0] - 1;
+	} else
+		selmon->ltaxis[arg->i] = selmon->ltaxis[arg->i] + 1 > 4 ? 1 : selmon->ltaxis[arg->i] + 1;
+	#if PERTAG_PATCH
+	selmon->pertag->ltaxes[selmon->pertag->curtag][arg->i] = selmon->ltaxis[arg->i];
+	#endif // PERTAG_PATCH
+	arrange(selmon);
+}
\ No newline at end of file
diff --git a/patch/flextile.h b/patch/flextile.h
new file mode 100644
index 0000000..86ef620
--- /dev/null
+++ b/patch/flextile.h
@@ -0,0 +1,18 @@
+static void flextile(Monitor *m);
+static void mirrorlayout(const Arg *arg);
+static void rotatelayoutaxis(const Arg *arg);
+static void setflexlayout(const Arg *arg);
+static void setflexsymbols(Monitor *m, unsigned int n);
+
+/* Named flextile constants */
+#define LAYOUT 0
+#define MASTER 1
+#define STACK 2
+#define SPLIT_VERTICAL 1   // master stack vertical split
+#define SPLIT_HORIZONTAL 2 // master stack horizontal split
+#define SPLIT_CENTERED_V 3 // centered master vertical split
+#define SPLIT_CENTERED_H 4 // centered master horizontal split
+#define LEFT_TO_RIGHT 1    // clients are stacked horizontally
+#define TOP_TO_BOTTOM 2    // clients are stacked vertically
+#define MONOCLE 3          // clients are stacked in deck / monocle mode
+#define GRID 4             // clients are stacked in grid mode
\ No newline at end of file
diff --git a/patch/include.c b/patch/include.c
index 156fbac..9987be0 100644
--- a/patch/include.c
+++ b/patch/include.c
@@ -78,6 +78,10 @@
 #include "fibonacci.c"
 #endif
 
+#if FLEXTILE_LAYOUT
+#include "flextile.c"
+#endif
+
 #if GAPPLESSGRID_LAYOUT
 #include "gapplessgrid.c"
 #endif
diff --git a/patch/include.h b/patch/include.h
index 596f303..7912b30 100644
--- a/patch/include.h
+++ b/patch/include.h
@@ -74,6 +74,10 @@
 #include "fibonacci.h"
 #endif
 
+#if FLEXTILE_LAYOUT
+#include "flextile.h"
+#endif
+
 #if GAPPLESSGRID_LAYOUT
 #include "gapplessgrid.h"
 #endif
diff --git a/patch/pertag.c b/patch/pertag.c
index 967e46a..730a0d1 100644
--- a/patch/pertag.c
+++ b/patch/pertag.c
@@ -1,6 +1,9 @@
 struct Pertag {
 	unsigned int curtag, prevtag; /* current and previous tag */
 	int nmasters[LENGTH(tags) + 1]; /* number of windows in master area */
+	#if FLEXTILE_LAYOUT
+	int ltaxes[LENGTH(tags) + 1][3];
+	#endif // FLEXTILE_LAYOUT
 	float mfacts[LENGTH(tags) + 1]; /* mfacts per tag */
 	unsigned int sellts[LENGTH(tags) + 1]; /* selected layouts */
 	const Layout *ltidxs[LENGTH(tags) + 1][2]; /* matrix of tags and layouts indexes  */
diff --git a/patches.h b/patches.h
index d272144..d16c280 100644
--- a/patches.h
+++ b/patches.h
@@ -205,7 +205,7 @@
 /* Centered floating master layout.
  * https://dwm.suckless.org/patches/centeredmaster/
  */
-#define CENTEREDFLOATINGMASTER_LAYOUT 1
+#define CENTEREDFLOATINGMASTER_LAYOUT 0
 
 /* Deck layout.
  * https://dwm.suckless.org/patches/deck/
@@ -222,6 +222,11 @@
  */
 #define FIBONACCI_SPIRAL_LAYOUT 0
 
+/* Flextile layout.
+ * https://dwm.suckless.org/patches/flextile/
+ */
+#define FLEXTILE_LAYOUT 0
+
 /* Gappless grid layout.
  * https://dwm.suckless.org/patches/gaplessgrid/
  */