From e892171736157127d1ca8fd6b5c6193eb5b55c53 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sun, 28 May 2006 10:48:50 +0200
Subject: [PATCH] Fixed deleting channels in case the current channel's number
 changes

---
 CONTRIBUTORS |  2 ++
 HISTORY      |  2 ++
 channels.c   | 13 ++++++++++++-
 channels.h   |  6 +++++-
 menu.c       | 32 +++++++++++++++++++++++++++++++-
 5 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index c7f51a3c..c593cc46 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -446,6 +446,8 @@ Mirko D
  for suggesting to allow defining key macros for all non-modeless keys
  for reporting a bug in entering '0' in a cMenuEditIntItem
  for reporting that moving channels sometimes stopped the current replay session
+ for reporting a problem with deleting channels in case the current channel's
+ number changes
 
 Michael Rakowski <mrak@gmx.de>
  for translating OSD texts to the Polish language
diff --git a/HISTORY b/HISTORY
index e0c9b4ae..da5dd4f9 100644
--- a/HISTORY
+++ b/HISTORY
@@ -4743,3 +4743,5 @@ Video Disk Recorder Revision History
 - Improved the repeat function for LIRC remote controls (thanks to Joerg Riechardt).
 - Fixed moving channels, which sometimes stopped the current replay session
   (reported by Mirko Dölle).
+- Fixed deleting channels in case the current channel's number changes (reported
+  by Mirko Dölle).
diff --git a/channels.c b/channels.c
index 343802ee..4f1d3951 100644
--- a/channels.c
+++ b/channels.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: channels.c 1.51 2006/04/17 12:18:57 kls Exp $
+ * $Id: channels.c 1.52 2006/05/28 10:14:18 kls Exp $
  */
 
 #include "channels.h"
@@ -925,6 +925,17 @@ int cChannels::GetNextNormal(int Idx)
   return channel ? Idx : -1;
 }
 
+#if APIVERSNUM != 10400
+#warning ******* API version changed - activate new code
+int cChannels::GetPrevNormal(int Idx)
+{
+  cChannel *channel = Get(--Idx);
+  while (channel && channel->GroupSep())
+        channel = Get(--Idx);
+  return channel ? Idx : -1;
+}
+#endif
+
 void cChannels::ReNumber( void )
 {
   channelsHashSid.Clear();
diff --git a/channels.h b/channels.h
index c7da4f35..abccceae 100644
--- a/channels.h
+++ b/channels.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: channels.h 1.40 2006/02/28 13:52:49 kls Exp $
+ * $Id: channels.h 1.41 2006/05/28 10:13:21 kls Exp $
  */
 
 #ifndef __CHANNELS_H
@@ -233,6 +233,10 @@ public:
   int GetNextGroup(int Idx);   // Get next channel group
   int GetPrevGroup(int Idx);   // Get previous channel group
   int GetNextNormal(int Idx);  // Get next normal channel (not group)
+#if APIVERSNUM != 10400
+#warning ******* API version changed - activate new code
+  int GetPrevNormal(int Idx);  // Get previous normal channel (not group)
+#endif
   void ReNumber(void);         // Recalculate 'number' based on channel type
   cChannel *GetByNumber(int Number, int SkipGap = 0);
   cChannel *GetByServiceID(int Source, int Transponder, unsigned short ServiceID);
diff --git a/menu.c b/menu.c
index 3f32adae..759cfe0d 100644
--- a/menu.c
+++ b/menu.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.c 1.437 2006/05/28 09:17:25 kls Exp $
+ * $Id: menu.c 1.438 2006/05/28 10:47:40 kls Exp $
  */
 
 #include "menu.h"
@@ -499,6 +499,8 @@ eOSState cMenuChannels::New(void)
 eOSState cMenuChannels::Delete(void)
 {
   if (!HasSubMenu() && Count() > 0) {
+     int CurrentChannelNr = cDevice::CurrentChannel();
+     cChannel *CurrentChannel = Channels.GetByNumber(CurrentChannelNr);
      int Index = Current();
      cChannel *channel = GetChannel(Current());
      int DeletedChannel = channel->Number();
@@ -508,10 +510,38 @@ eOSState cMenuChannels::Delete(void)
         return osContinue;
         }
      if (Interface->Confirm(tr("Delete channel?"))) {
+        if (CurrentChannel && channel == CurrentChannel) {
+           int n = Channels.GetNextNormal(CurrentChannel->Index());
+#if APIVERSNUM == 10400
+           if (n < 0) {
+              int Idx = CurrentChannel->Index();
+              cChannel *channel = Channels.Get(--Idx);
+              while (channel && channel->GroupSep())
+                    channel = Channels.Get(--Idx);
+              if (channel)
+                 n = Idx;
+              }
+#else
+#warning ******* API version changed - remove old stuff
+           if (n < 0)
+              n = Channels.GetPrevNormal(CurrentChannel->Index());
+#endif
+           CurrentChannel = Channels.Get(n);
+           CurrentChannelNr = 0; // triggers channel switch below
+           }
         Channels.Del(channel);
         cOsdMenu::Del(Index);
         Propagate();
         isyslog("channel %d deleted", DeletedChannel);
+        if (CurrentChannel && CurrentChannel->Number() != CurrentChannelNr) {
+           if (!cDevice::PrimaryDevice()->Replaying() || cDevice::PrimaryDevice()->Transferring())
+              Channels.SwitchTo(CurrentChannel->Number());
+#if APIVERSNUM != 10400
+#warning ******* API version changed - activate new code
+           else
+              cDevice::SetCurrentChannel(CurrentChannel);
+#endif
+           }
         }
      }
   return osContinue;