[dwm] dwm-4.6 bstack patch

[James Turner]

I've updated the bottom stack to better handle resizehints and work with
the latest tip.  Feel free to test and let me know how it goes.  Thanks.

http://bsdgroup.org/files/dwm-4.6-bstack.diff

-- 
James Turner
BSD Group Consulting
http://www.bsdgroup.org

--- bstack.c    Wed Dec 31 19:00:00 1969
+++ bstack.c    Wed Oct 24 22:28:48 2007
@@ -0,0 +1,41 @@
+void
+bstack(void) {
+    unsigned int i, n, nx, ny, nw, nh, mh, tw, th;
+    Client *c, *mc;
+
+    for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
+        n++;
+
+    /* window geoms */
+    mh = (n == 1) ? wah : mwfact * wah;
+    tw = (n > 1) ? waw / (n - 1) : 0;
+    th = (n > 1) ? (1 - mwfact) * wah : 0;
+
+    nx = wax;
+    ny = way;
+    nh = 0; /* gcc stupidity required this */
+    for(i = 0, c = mc = nexttiled(clients); c; c = nexttiled(c->next), i++) {
+        c->ismax = False;
+        if(i == 0) { /* master */
+            nw = waw - 2 * c->border;
+            nh = mh - 2 * c->border;
+        }
+        else { /* tile window */
+            if(i == 1) {
+                nx = wax;
+                ny += mc->h + 2 * mc->border;
+                nh = th - 2 * c->border;
+            }
+            if(i + 1 == n) /* remainder */
+                nw = (wax + waw) - nx - 2 * c->border;
+            else
+                nw = tw - 2 * c->border;
+        }
+        resize(c, nx, ny, nw, nh, True);
+        if((c->h < bh) || (c->h > nh) || (c->w < bh) || (c->w > nw))
+            /* client doesn't accept geometry, so enforce it */
+            resize(c, nx, ny, nw, nh, False);
+        if(n > 1 && tw != waw)
+            nx = c->x + c->w + 2 * c->border;
+    }
+}
--- config.def.h        Wed Oct 24 22:04:30 2007
+++ config.def.h        Wed Oct 24 22:10:17 2007
@@ -22,13 +22,15 @@ Rule rules[] = {
 };
 
 /* layout(s) */
-#define ISTILE                 isarrange(tile) /* || isarrange(<custom>) */
+#define ISTILE                 isarrange(tile) || isarrange(bstack) /* || 
isarrange(<custom>) */
 #define MWFACT                 0.6     /* master width factor [0.1 .. 0.9] */
 #define SNAP                   32      /* snap pixel */
+#include "bstack.c"
 Layout layouts[] = {
        /* symbol               function */
        { "[]=",                tile }, /* first entry is default */
        { "><>",                floating },
+    { "TTT",        bstack },
 };
 
 /* key definitions */