add uicb_setborder to change conf borderpx while running

TODO

@@ -1,6 +1,3 @@
-For v1.0:
-- Add uicb for sel->border++-- and awesomeconf->border++--
-
 For future:
 - Move windows from one place to another with mouse in tiled layout
 - draw _NET_WM_ICON

client.c

@@ -700,3 +700,24 @@ uicb_settrans(Display *disp __attribute__ ((unused)),
     else
         setclienttrans(sel, delta);
 }
+
+
+/** Set borrder size
+ * \param disp Display ref
+ * \param drawcontext Drawcontext ref
+ * \param awesomeconf awesome config
+ * \param arg X, +X or -X
+ */
+void
+uicb_setborder(Display *disp __attribute__ ((unused)),
+               DC *drawcontext __attribute__ ((unused)),
+               awesome_config *awesomeconf,
+               const char *arg)
+{
+    if(!arg)
+        return;
+
+    if((awesomeconf->borderpx = (int) compute_new_value_from_arg(arg, (double) awesomeconf->borderpx)) < 0)
+        awesomeconf->borderpx = 0;
+}
+

client.h

@@ -71,5 +71,6 @@ void set_shape(Client *);
 void uicb_killclient(Display *, DC *, awesome_config *, const char *); /* kill client */
 void uicb_moveresize(Display *, DC *, awesome_config *, const char *);  /* move and resize window */
 void uicb_settrans(Display *, DC *, awesome_config *, const char *);
+void uicb_setborder(Display *, DC *, awesome_config *, const char *);
 
 #endif

config.c

@@ -85,6 +85,7 @@ static const NameFuncLink KeyfuncList[] = {
     {"killclient", uicb_killclient},
     {"moveresize", uicb_moveresize},
     {"settrans", uicb_settrans},
+    {"setborder", uicb_setborder},
     /* tag.c */
     {"tag", uicb_tag},
     {"togglefloating", uicb_togglefloating},