Adding decoration hints patch

patch/decorationhints.c

@@ -0,0 +1,34 @@
+static Atom motifatom;
+
+void
+updatemotifhints(Client *c)
+{
+	Atom real;
+	int format;
+	unsigned char *p = NULL;
+	unsigned long n, extra;
+	unsigned long *motif;
+	int width, height;
+
+	if (!decorhints)
+		return;
+
+	if (XGetWindowProperty(dpy, c->win, motifatom, 0L, 5L, False, motifatom,
+	                       &real, &format, &n, &extra, &p) == Success && p != NULL) {
+		motif = (unsigned long*)p;
+		if (motif[MWM_HINTS_FLAGS_FIELD] & MWM_HINTS_DECORATIONS) {
+			width = WIDTH(c);
+			height = HEIGHT(c);
+
+			if (motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_ALL ||
+			    motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_BORDER ||
+			    motif[MWM_HINTS_DECORATIONS_FIELD] & MWM_DECOR_TITLE)
+				c->bw = c->oldbw = borderpx;
+			else
+				c->bw = c->oldbw = 0;
+
+			resize(c, c->x, c->y, width - (2*c->bw), height - (2*c->bw), 0);
+		}
+		XFree(p);
+	}
+}