Adding switchcol patch

patch/include.c

@@ -86,6 +86,10 @@
 #include "systray.c"
 #endif
 
+#if SWITCHCOL_PATCH
+#include "switchcol.c"
+#endif
+
 #if TAGALLMON_PATCH
 #include "tagallmon.c"
 #endif

patch/include.h

@@ -86,6 +86,10 @@
 #include "systray.h"
 #endif
 
+#if SWITCHCOL_PATCH
+#include "switchcol.h"
+#endif
+
 #if TAGALLMON_PATCH
 #include "tagallmon.h"
 #endif

patch/switchcol.c

@@ -0,0 +1,28 @@
+void
+switchcol(const Arg *arg)
+{
+	Client *c, *t;
+	int col = 0;
+	int i;
+
+	if (!selmon->sel)
+		return;
+	for (i = 0, c = nexttiled(selmon->clients); c ;
+	     c = nexttiled(c->next), i++) {
+		if (c == selmon->sel)
+			col = (i + 1) > selmon->nmaster;
+	}
+	if (i <= selmon->nmaster)
+		return;
+	for (c = selmon->stack; c; c = c->snext) {
+		if (!ISVISIBLE(c))
+			continue;
+		for (i = 0, t = nexttiled(selmon->clients); t && t != c;
+		     t = nexttiled(t->next), i++);
+		if (t && (i + 1 > selmon->nmaster) != col) {
+			focus(c);
+			restack(selmon);
+			break;
+		}
+	}
+}

patch/switchcol.h

@@ -0,0 +1 @@
+static void switchcol(const Arg *arg);