Fixed scrolling with Up/Down in case there are non-selectable items at the beginning or end of the menu

CONTRIBUTORS

@@ -550,6 +550,8 @@ Helmut Auer <vdr@helmutauer.de>
  for suggesting to give a message when an instant recording is started
  fpr suggesting to retry a shutdown after a while
  for separating the 'install' target into several individual targets
+ for reporting a problem with scrolling with Up/Down in case there are non-selectable
+ items at the beginning of the menu
 
 Jeremy Hall <jhall@UU.NET>
  for fixing an incomplete initialization of the filter parameters in eit.c

HISTORY

@@ -4312,3 +4312,5 @@ Video Disk Recorder Revision History
 - Renamed the Makefile target 'plugins-clean' to 'clean-plugins' (suggested by
   Sebastian Frei).
 - Made all font and image data 'const' (thanks to Darren Salt).
+- Fixed scrolling with Up/Down in case there are non-selectable items at the
+  beginning or end of the menu (reported by Helmut Auer).

osdbase.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osdbase.c 1.28 2006/01/08 11:40:02 kls Exp $
+ * $Id: osdbase.c 1.29 2006/02/05 14:37:03 kls Exp $
  */
 
 #include "osdbase.h"
@@ -280,6 +280,12 @@ void cOsdMenu::CursorUp(void)
      return;
   while (--tmpCurrent != current) {
         if (tmpCurrent < 0) {
+           if (first > 0) {
+              // make non-selectable items at the beginning visible:
+              first = 0;
+              Display();
+              return;
+              }
            if (Setup.MenuScrollWrap)
               tmpCurrent = last + 1;
            else
@@ -312,6 +318,12 @@ void cOsdMenu::CursorDown(void)
      return;
   while (++tmpCurrent != current) {
         if (tmpCurrent > last) {
+           if (first < last - displayMenuItems) {
+              // make non-selectable items at the end visible:
+              first = last - displayMenuItems + 1;
+              Display();
+              return;
+              }
            if (Setup.MenuScrollWrap)
               tmpCurrent = -1;
            else