Add grid patch

config.def.h

@@ -65,11 +65,13 @@ static const int nmaster     = 1;    /* number of clients in master area */
 static const int resizehints = 1;    /* 1 means respect size hints in tiled resizals */
 static const int lockfullscreen = 1; /* 1 will force focus on the fullscreen window */
 
+#include "layouts.c"
 static const Layout layouts[] = {
 	/* symbol     arrange function */
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+	{ "HHH",      grid },
 };
 
 /* key definitions */
@@ -125,6 +127,7 @@ static Key keys[] = {
 	{ SUPERKEY,                     XK_t,                     setlayout,      {.v = &layouts[0]} },
 	{ SUPERKEY,                     XK_f,                     setlayout,      {.v = &layouts[1]} },
 	{ SUPERKEY,                     XK_m,                     setlayout,      {.v = &layouts[2]} },
+	{ SUPERKEY,                     XK_g,			  setlayout,      {.v = &layouts[3]} },
 /*	{ SUPERKEY,                     XK_space,                 setlayout,      {0} }, */
 	{ SUPERKEY|ShiftMask,           XK_space,                 togglefloating, {0} },
 	{ SUPERKEY,                     XK_0,                     view,           {.ui = ~0 } },

layouts.c

@@ -0,0 +1,27 @@
+void
+grid(Monitor *m) {
+	unsigned int i, n, cx, cy, cw, ch, aw, ah, cols, rows;
+	Client *c;
+
+	for(n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next))
+		n++;
+
+	/* grid dimensions */
+	for(rows = 0; rows <= n/2; rows++)
+		if(rows*rows >= n)
+			break;
+	cols = (rows && (rows - 1) * rows >= n) ? rows - 1 : rows;
+
+	/* window geoms (cell height/width) */
+	ch = m->wh / (rows ? rows : 1);
+	cw = m->ww / (cols ? cols : 1);
+	for(i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next)) {
+		cx = m->wx + (i / rows) * cw;
+		cy = m->wy + (i % rows) * ch;
+		/* adjust height/width of last row/column's windows */
+		ah = ((i + 1) % rows == 0) ? m->wh - ch * rows : 0;
+		aw = (i >= rows * (cols - 1)) ? m->ww - cw * cols : 0;
+		resize(c, cx, cy, cw - 2 * c->bw + aw, ch - 2 * c->bw + ah, False);
+		i++;
+	}
+}