Fixed handling OSD color button texts in case a menu item has texts of its own

CONTRIBUTORS

@@ -1135,6 +1135,8 @@ Rolf Ahrenberg <rahrenbe@cc.hut.fi>
  "word by word"
  for reporting a problem with color palettes in subtitles
  for adding some typecasts to silence gcc compiler warnings
+ for reporting a bug in handling OSD color button texts in case a menu item has
+ texts of its own
 
 Ralf Klueber <ralf.klueber@vodafone.com>
  for reporting a bug in cutting a recording if there is only a single editing mark

HISTORY

@@ -6947,3 +6947,8 @@ Video Disk Recorder Revision History
 - Added a Query parameter to cDevice::GetDevice(), so that devices can be queried
   without side effects when zapping.
 - Replaced min(max()) calls with the new function constrain().
+- Fixed handling OSD color button texts in case a menu item has texts of its own
+  (reported by Rolf Ahrenberg). If a plugin creates derived cMenuEditItems that set
+  color button texts, these should not set the texts directly by calling
+  cSkinDisplay::Current()->SetButtons(), but rather call the new member function
+  cMenuEditItem::SetHelp().

menuitems.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menuitems.c 2.10 2011/08/12 13:19:40 kls Exp $
+ * $Id: menuitems.c 2.11 2012/03/02 15:49:57 kls Exp $
  */
 
 #include "menuitems.h"
@@ -26,6 +26,7 @@ const char *FileNameChars = trNOOP("FileNameChars$ abcdefghijklmnopqrstuvwxyz012
 cMenuEditItem::cMenuEditItem(const char *Name)
 {
   name = strdup(Name ? Name : "???");
+  SetHelp(NULL);
 }
 
 cMenuEditItem::~cMenuEditItem()
@@ -40,6 +41,27 @@ void cMenuEditItem::SetValue(const char *Value)
   cStatus::MsgOsdCurrentItem(buffer);
 }
 
+void cMenuEditItem::SetHelp(const char *Red, const char *Green, const char *Yellow, const char *Blue)
+{
+  // strings are NOT copied - must be constants!!!
+  helpRed    = Red;
+  helpGreen  = Green;
+  helpYellow = Yellow;
+  helpBlue   = Blue;
+  helpDisplayed = false;
+}
+
+bool cMenuEditItem::DisplayHelp(void)
+{
+  bool HasHelp = helpRed || helpGreen || helpYellow || helpBlue;
+  if (HasHelp && !helpDisplayed) {
+     cSkinDisplay::Current()->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
+     cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
+     helpDisplayed = true;
+     }
+  return HasHelp;
+}
+
 // --- cMenuEditIntItem ------------------------------------------------------
 
 cMenuEditIntItem::cMenuEditIntItem(const char *Name, int *Value, int Min, int Max, const char *MinString, const char *MaxString)
@@ -382,9 +404,9 @@ void cMenuEditStrItem::LeaveEditMode(bool SaveValue)
 void cMenuEditStrItem::SetHelpKeys(void)
 {
   if (InEditMode())
-     cSkinDisplay::Current()->SetButtons(tr("Button$ABC/abc"), insert ? tr("Button$Overwrite") : tr("Button$Insert"), tr("Button$Delete"));
+     SetHelp(tr("Button$ABC/abc"), insert ? tr("Button$Overwrite") : tr("Button$Insert"), tr("Button$Delete"));
   else
-     cSkinDisplay::Current()->SetButtons(NULL);
+     SetHelp(NULL);
 }
 
 uint *cMenuEditStrItem::IsAllowed(uint c)

menuitems.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menuitems.h 2.5 2011/06/13 13:46:03 kls Exp $
+ * $Id: menuitems.h 2.6 2012/03/02 15:49:57 kls Exp $
  */
 
 #ifndef __MENUITEMS_H
@@ -19,10 +19,15 @@ extern const char *FileNameChars;
 class cMenuEditItem : public cOsdItem {
 private:
   char *name;
+  const char *helpRed, *helpGreen, *helpYellow, *helpBlue;
+  bool helpDisplayed;
+protected:
+  void SetHelp(const char *Red, const char *Green = NULL, const char *Yellow = NULL, const char *Blue = NULL);
 public:
   cMenuEditItem(const char *Name);
   ~cMenuEditItem();
   void SetValue(const char *Value);
+  bool DisplayHelp(void);
   };
 
 class cMenuEditIntItem : public cMenuEditItem {

osdbase.c

@@ -4,13 +4,14 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osdbase.c 2.3 2010/12/12 13:41:28 kls Exp $
+ * $Id: osdbase.c 2.4 2012/03/02 15:49:57 kls Exp $
  */
 
 #include "osdbase.h"
 #include <string.h>
 #include "device.h"
 #include "i18n.h"
+#include "menuitems.h"
 #include "remote.h"
 #include "status.h"
 
@@ -85,6 +86,7 @@ cOsdMenu::cOsdMenu(const char *Title, int c0, int c1, int c2, int c3, int c4)
   current = marked = -1;
   subMenu = NULL;
   helpRed = helpGreen = helpYellow = helpBlue = NULL;
+  helpDisplayed = false;
   status = NULL;
   if (!displayMenuCount++)
      SetDisplayMenu();
@@ -154,6 +156,15 @@ void cOsdMenu::SetTitle(const char *Title)
   title = strdup(Title);
 }
 
+void cOsdMenu::DisplayHelp(bool Force)
+{
+  if (!helpDisplayed || Force) {
+     displayMenu->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
+     cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
+     helpDisplayed = true;
+     }
+}
+
 void cOsdMenu::SetHelp(const char *Red, const char *Green, const char *Yellow, const char *Blue)
 {
   // strings are NOT copied - must be constants!!!
@@ -161,8 +172,7 @@ void cOsdMenu::SetHelp(const char *Red, const char *Green, const char *Yellow, c
   helpGreen  = Green;
   helpYellow = Yellow;
   helpBlue   = Blue;
-  displayMenu->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
+  DisplayHelp(true);
-  cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
 }
 
 void cOsdMenu::Del(int Index)
@@ -205,8 +215,7 @@ void cOsdMenu::Display(void)
   displayMenu->SetTabs(cols[0], cols[1], cols[2], cols[3], cols[4]);//XXX
   displayMenu->SetTitle(title);
   cStatus::MsgOsdTitle(title);
-  displayMenu->SetButtons(helpRed, helpGreen, helpYellow, helpBlue);
+  DisplayHelp(true);
-  cStatus::MsgOsdHelpKeys(helpRed, helpGreen, helpYellow, helpBlue);
   int count = Count();
   if (count > 0) {
      int ni = 0;
@@ -263,6 +272,12 @@ void cOsdMenu::DisplayCurrent(bool Current)
         cStatus::MsgOsdCurrentItem(item->Text());
      if (!Current)
         item->SetFresh(true); // leaving the current item resets 'fresh'
+     if (cMenuEditItem *MenuEditItem = dynamic_cast<cMenuEditItem *>(item)) {
+        if (!MenuEditItem->DisplayHelp())
+           DisplayHelp();
+        else
+           helpDisplayed = false;
+        }
      }
 }
 

osdbase.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: osdbase.h 2.1 2010/01/16 14:25:31 kls Exp $
+ * $Id: osdbase.h 2.2 2012/03/02 15:49:57 kls Exp $
  */
 
 #ifndef __OSDBASE_H
@@ -92,9 +92,11 @@ private:
   int first, current, marked;
   cOsdMenu *subMenu;
   const char *helpRed, *helpGreen, *helpYellow, *helpBlue;
+  bool helpDisplayed;
   char *status;
   int digit;
   bool hasHotkeys;
+  void DisplayHelp(bool Force = false);
 protected:
   void SetDisplayMenu(void);
   cSkinDisplayMenu *DisplayMenu(void) { return displayMenu; }