attachbelow

config.def.h

@@ -47,12 +47,15 @@ static const Rule rules[] = {
 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 */
+static const int attachbelow = 1;    /* 1 means attach after the currently active window */
 
 static const Layout layouts[] = {
 	/* symbol     arrange function */
 	{ "[]=",      tile },    /* first entry is default */
 	{ "><>",      NULL },    /* no layout function means floating behavior */
 	{ "[M]",      monocle },
+  { "|M|",      centeredmaster },
+  { ">M>",      centeredfloatingmaster },
 };
 
 /* key definitions */
@@ -88,6 +91,8 @@ static Key keys[] = {
 	{ MODKEY,                       XK_t,      setlayout,      {.v = &layouts[0]} },
 	{ MODKEY,                       XK_f,      setlayout,      {.v = &layouts[1]} },
 	{ MODKEY,                       XK_m,      setlayout,      {.v = &layouts[2]} },
+  { MODKEY,                       XK_u,      setlayout,      {.v = &layouts[3]} },
+  { MODKEY,                       XK_o,      setlayout,      {.v = &layouts[4]} },
 	{ MODKEY,                       XK_space,  setlayout,      {0} },
 	{ MODKEY|ShiftMask,             XK_space,  togglefloating, {0} },
 	{ MODKEY,                       XK_0,      view,           {.ui = ~0 } },

dwm.1

@@ -29,6 +29,9 @@ color. The tags of the focused window are indicated with a filled square in the
 top left corner.  The tags which are applied to one or more windows are
 indicated with an empty square in the top left corner.
 .P
+The attach below patch makes newly spawned windows attach after the currently
+selected window.
+.P
 dwm draws a small border around windows to indicate the focus state.
 .SH OPTIONS
 .TP

dwm.c

@@ -175,6 +175,7 @@ static int applysizehints(Client *c, int *x, int *y, int *w, int *h, int interac
 static void arrange(Monitor *m);
 static void arrangemon(Monitor *m);
 static void attach(Client *c);
+static void attachBelow(Client *c);
 static void attachstack(Client *c);
 static void buttonpress(XEvent *e);
 static void checkotherwm(void);
@@ -273,6 +274,8 @@ static int xerrordummy(Display *dpy, XErrorEvent *ee);
 static int xerrorstart(Display *dpy, XErrorEvent *ee);
 static void xinitvisual();
 static void zoom(const Arg *arg);
+static void centeredmaster(Monitor *m);
+static void centeredfloatingmaster(Monitor *m);
 
 /* variables */
 static Systray *systray =  NULL;
@@ -462,6 +465,22 @@ attach(Client *c)
 	c->mon->clients = c;
 }
 
+void
+attachBelow(Client *c)
+{
+  //If there is nothing on the monitor or the selected client is floating, attach as normal
+  if(c->mon->sel == NULL || c->mon->sel->isfloating) {
+    attach(c);
+    return;
+  }
+
+  //Set the new client's next property to the same as the currently selected clients next
+  c->next = c->mon->sel->next;
+  //Set the currently selected clients next property to the new client
+  c->mon->sel->next = c;
+
+}
+
 void
 attachstack(Client *c)
 {
@@ -1210,7 +1229,10 @@ manage(Window w, XWindowAttributes *wa)
 		c->isfloating = c->oldstate = trans != None || c->isfixed;
 	if (c->isfloating)
 		XRaiseWindow(dpy, c->win);
-	attach(c);
+  if (attachbelow)
+    attachBelow(c);
+  else
+    attach(c);
 	attachstack(c);
 	XChangeProperty(dpy, root, netatom[NetClientList], XA_WINDOW, 32, PropModeAppend,
 		(unsigned char *) &(c->win), 1);
@@ -1646,7 +1668,11 @@ sendmon(Client *c, Monitor *m)
 	detachstack(c);
 	c->mon = m;
 	c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */
-	attach(c);
+  attach(c);
+  if (attachbelow)
+    attachBelow(c);
+  else
+    attach(c);
 	attachstack(c);
 	focus(NULL);
 	arrange(NULL);
@@ -2194,7 +2220,10 @@ updategeom(void)
 					m->clients = c->next;
 					detachstack(c);
 					c->mon = mons;
-					attach(c);
+          if (attachbelow)
+            attachBelow(c);
+          else
+            attach(c);
 					attachstack(c);
 				}
 				if (m == selmon)
@@ -2650,3 +2679,107 @@ main(int argc, char *argv[])
 	XCloseDisplay(dpy);
 	return EXIT_SUCCESS;
 }
+
+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);
+       }
+}
+