--- rxvt-unicode/src/rxvttoolkit.C	2005/01/17 00:59:24	1.12
+++ rxvt-unicode/src/rxvttoolkit.C	2005/08/11 02:05:07	1.18
@@ -145,7 +145,21 @@
 
 bool rxvt_display::init ()
 {
-  display = XOpenDisplay (id);
+#ifdef LOCAL_X_IS_UNIX
+  if (id[0] == ':')
+    {
+      val = rxvt_malloc (5 + strlen (id) + 1);
+      strcpy (val, "unix/");
+      strcat (val, id);
+      display = XOpenDisplay (val);
+      free (val);
+    }
+  else
+#endif
+    display = 0;
+
+  if (!display)
+    display = XOpenDisplay (id);
 
   if (!display)
     return false;
@@ -159,7 +173,7 @@
   int fd = XConnectionNumber (display);
 
 #ifndef NO_SLOW_LINK_SUPPORT
-  // try to detetc wether we have a local connection.
+  // try to detect wether we have a local connection.
   // assume unix domains socket == local, everything else not
   // TODO: might want to check for inet/127.0.0.1
   is_local = 0;
@@ -233,7 +247,7 @@
 
 void rxvt_display::im_change_check ()
 {
-  // make sure we only call im_change_cb when a new input method
+  // try to only call im_change_cb when a new input method
   // registers, as xlib crashes due to a race otherwise.
   Atom actual_type, *atoms;
   int actual_format;
@@ -462,14 +476,43 @@
 rxvt_color
 rxvt_color::fade (rxvt_display *display, int percent)
 {
+  percent = 100 - percent;
+
   unsigned short cr, cg, cb;
   rxvt_color faded;
 
   get (display, cr, cg, cb);
-  faded.set (display,
-             cr * percent / 100,
-             cg * percent / 100,
-             cb * percent / 100);
+
+  faded.set (
+    display,
+    cr * percent / 100,
+    cg * percent / 100,
+    cb * percent / 100
+  );
+
+  return faded;
+}
+
+#define LERP(a,b,p) (a * p / 100 + b * (100 - p) / 100)
+
+rxvt_color
+rxvt_color::fade (rxvt_display *display, int percent, rxvt_color &fadeto)
+{
+  percent = 100 - percent;
+
+  unsigned short cr, cg, cb;
+  unsigned short fcr, fcg, fcb;
+  rxvt_color faded;
+  
+  get (display, cr, cg, cb);
+  fadeto.get(display, fcr, fcg, fcb);
+
+  faded.set (
+    display,
+    LERP (cr, fcr, percent),
+    LERP (cg, fcg, percent),
+    LERP (cb, fcb, percent)
+  );
 
   return faded;
 }