--- rxvt-unicode/src/scrollbar.C	2006/02/02 18:04:46	1.36
+++ rxvt-unicode/src/scrollbar.C	2008/01/01 21:14:39	1.45
@@ -1,4 +1,4 @@
-/*--------------------------------*-C-*---------------------------------*
+/*----------------------------------------------------------------------*
  * File:	scrollbar.C
  *----------------------------------------------------------------------*
  *
@@ -6,7 +6,7 @@
  * Copyright (c) 1998      Alfredo K. Kojima <kojima@windowmaker.org>
  *				- N*XTstep like scrollbars
  * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
- * Copyright (c) 2004      Marc Lehmann <pcg@goof.com>
+ * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -72,9 +72,9 @@
 #define R_SCROLLBEG_NEXT	0
 #define R_SCROLLEND_NEXT	szHint.height - (SB_BUTTON_TOTAL_HEIGHT + \
                                                     SB_PADDING)
-#define R_SCROLLBEG_RXVT	(scrollBar.width + 1) + sb_shadow
+#define R_SCROLLBEG_RXVT	(scrollBar.width + 1) + scrollBar.shadow
 #define R_SCROLLEND_RXVT	szHint.height - R_SCROLLBEG_RXVT - \
-                                    (2 * sb_shadow)
+                                    (2 * scrollBar.shadow)
 
 #if defined(PLAIN_SCROLLBAR)
   if (scrollBar.style == R_SB_PLAIN)
@@ -159,21 +159,21 @@
       adj = (((bot - top) * scrollbar_size ()) % len) > 0 ? 1 : 0;
 
       scrollBar.top = (scrollBar.beg + (top * scrollbar_size ()) / len);
-      scrollbar_len = ((bot - top) * scrollbar_size ()) / len +
+      scrollBar.len = ((bot - top) * scrollbar_size ()) / len +
                       scrollbar_minheight () + adj;
-      scrollBar.bot = (scrollBar.top + scrollbar_len);
+      scrollBar.bot = (scrollBar.top + ScrollBar.len);
       /* no change */
-      if (scrollBar.top == last_top
-          && scrollBar.bot == last_bot
-          && (scrollBar.state == last_state || !scrollbar_isUpDn ()))
+      if (scrollBar.top == scrollBar.last_top
+          && scrollBar.bot == scrollBar.last_bot
+          && (scrollBar.state == scrollBar.last_state || !scrollbar_isUpDn ()))
         return 0;
     }
 
-  ret = (this->*scrollBar.update) (update, last_top, last_bot, scrollbar_len);
+  ret = (this->*scrollBar.update) (update, scrollBar.last_top, scrollBar.last_bot, scrollBar.len);
 
-  last_top = scrollBar.top;
-  last_bot = scrollBar.bot;
-  last_state = scrollBar.state;
+  scrollBar.last_top = scrollBar.top;
+  scrollBar.last_bot = scrollBar.bot;
+  scrollBar.last_state = scrollBar.state;
 #endif
 
   return ret;
@@ -230,21 +230,22 @@
       width = min (i, SB_WIDTH_MAXIMUM);
 
 # ifdef RXVT_SCROLLBAR
-  if (! OPTION (Opt_scrollBar_floating) && style == R_SB_RXVT)
-    sb_shadow = SHADOW_WIDTH;
+  if (! option (Opt_scrollBar_floating) && style == R_SB_RXVT)
+    scrollBar.shadow = SHADOW_WIDTH;
 # endif
 
   scrollBar.style = style;
   scrollBar.width = width;
 
-  /* scrollbar_align = R_SB_ALIGN_CENTRE; */
+  /* scrollBar.align = R_SB_ALIGN_CENTRE; */
   if (scrollalign)
     {
       if (strncasecmp (scrollalign, "top", 3) == 0)
-        scrollbar_align = R_SB_ALIGN_TOP;
+        scrollBar.align = R_SB_ALIGN_TOP;
       else if (strncasecmp (scrollalign, "bottom", 6) == 0)
-        scrollbar_align = R_SB_ALIGN_BOTTOM;
+        scrollBar.align = R_SB_ALIGN_BOTTOM;
     }
+  scrollBar.last_bot = scrollBar.last_state = -1;
 #endif
 }