Implemented OSD for Volume and Mute

HISTORY

@@ -1088,3 +1088,5 @@ Video Disk Recorder Revision History
   to debug this one).
 - Now starting the Dolby Digital output thread only if the recording actually
   contains Dolby Digital audio data (thanks to Werner Fink).
+- Implemented OSD for Volume and Mute (works only if there is no other OSD
+  activity, but this should be no problem for normal use).

dvbapi.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.c 1.160 2002/03/09 11:59:39 kls Exp $
+ * $Id: dvbapi.c 1.161 2002/03/09 14:18:25 kls Exp $
  */
 
 #include "dvbapi.h"
@@ -2702,12 +2702,13 @@ bool cDvbApi::ToggleAudioTrack(void)
   return false;
 }
 
-void cDvbApi::ToggleMute(void)
+bool cDvbApi::ToggleMute(void)
 {
   int OldVolume = volume;
   mute = !mute;
   SetVolume(0, mute);
   volume = OldVolume;
+  return mute;
 }
 
 void cDvbApi::SetVolume(int Volume, bool Absolute)

dvbapi.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbapi.h 1.66 2002/03/08 17:16:31 kls Exp $
+ * $Id: dvbapi.h 1.67 2002/03/09 14:18:10 kls Exp $
  */
 
 #ifndef __DVBAPI_H
@@ -309,8 +309,8 @@ private:
   int volume;
 public:
   bool IsMute(void) { return mute; }
-  void ToggleMute(void);
+  bool ToggleMute(void);
-       // Turns the volume off or on.
+       // Turns the volume off or on and returns the new mute state.
   void SetVolume(int Volume, bool Absolute = false);
        // Sets the volume to the given value, either absolutely or relative to
        // the current volume.

i18n.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: i18n.c 1.60 2002/03/08 16:11:34 kls Exp $
+ * $Id: i18n.c 1.61 2002/03/09 16:21:59 kls Exp $
  *
  * Slovenian translations provided by Miha Setina <mihasetina@softhome.net>
  * Italian   translations provided by Alberto Carraro <bertocar@tin.it>
@@ -1558,6 +1558,16 @@ const tPhrase Phrases[] = {
     "", // TODO
     "Hyppää:",
   },
+  { "Volume ", // note the trailing blank
+    "Lautstärke ",
+    "", // TODO
+    "", // TODO
+    "", // TODO
+    "", // TODO
+    "Volume ",
+    "", // TODO
+    "Äänenvoimakkuus ",
+  },
   { " Stop replaying", // note the leading blank!
     " Wiedergabe beenden",
     " Prekini ponavljanje",

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 1.162 2002/03/08 16:06:11 kls Exp $
+ * $Id: menu.c 1.163 2002/03/09 16:57:34 kls Exp $
  */
 
 #include "menu.h"
@@ -2347,6 +2347,109 @@ eOSState cDisplayChannel::ProcessKey(eKeys Key)
   return osEnd;
 }
 
+// --- cVolumeBar ------------------------------------------------------------
+
+class cVolumeBar : public cBitmap {
+public:
+  cVolumeBar(int Width, int Height, int Current, int Total, const char *Prompt = NULL);
+  };
+
+cVolumeBar::cVolumeBar(int Width, int Height, int Current, int Total, const char *Prompt)
+:cBitmap(Width, Height, 2)
+{
+  int l = Prompt ? cBitmap::Width(Prompt) : 0;
+  int p = (Width - l) * Current / Total;
+  Text(0, 0, Prompt, clrGreen);
+  Fill(l, 0, p, Height - 1, clrGreen);
+  Fill(l + p, 0, Width - 1, Height - 1, clrWhite);
+}
+
+// --- cDisplayVolume --------------------------------------------------------
+
+#define VOLUMETIMEOUT 1000 //ms
+#define MUTETIMEOUT   5000 //ms
+
+cDisplayVolume *cDisplayVolume::displayVolume = NULL;
+
+cDisplayVolume::cDisplayVolume(void)
+:cOsdBase(true)
+{
+  displayVolume = this;
+  timeout = time_ms() + (cDvbApi::PrimaryDvbApi->IsMute() ? MUTETIMEOUT : VOLUMETIMEOUT);
+  Interface->Open(Setup.OSDwidth, -1);
+  Show();
+}
+
+cDisplayVolume::~cDisplayVolume()
+{
+  Interface->Close();
+  displayVolume = NULL;
+}
+
+void cDisplayVolume::Show(void)
+{
+  cDvbApi *dvbApi = cDvbApi::PrimaryDvbApi;
+  if (dvbApi->IsMute()) {
+     Interface->Fill(0, 0, Width(), 1, clrTransparent);
+     Interface->Write(0, 0, tr("Mute"), clrGreen);
+     }
+  else {
+     int Current = cDvbApi::CurrentVolume();
+     int Total = MAXVOLUME;
+     const char *Prompt = tr("Volume ");
+#ifdef DEBUG_OSD
+     int l = strlen(Prompt);
+     int p = int(double(Width() - l) * Current / Total + 0.5);
+     Interface->Write(0, 0, Prompt, clrGreen);
+     Interface->Fill(l, 0, p, 1, clrGreen);
+     Interface->Fill(l + p, 0, Width() - l - p, 1, clrWhite);
+#else
+     cVolumeBar VolumeBar(Width() * dvbApi->CellWidth(), dvbApi->LineHeight(), Current, Total, Prompt);
+     Interface->SetBitmap(0, 0, VolumeBar);
+#endif
+     }
+}
+
+cDisplayVolume *cDisplayVolume::Create(void)
+{
+  if (!displayVolume)
+     new cDisplayVolume;
+  return displayVolume;
+}
+
+void cDisplayVolume::Process(eKeys Key)
+{
+  if (displayVolume)
+     displayVolume->ProcessKey(Key);
+}
+
+eOSState cDisplayVolume::ProcessKey(eKeys Key)
+{
+  switch (Key) {
+    case kVolUp|k_Repeat:
+    case kVolUp:
+    case kVolDn|k_Repeat:
+    case kVolDn:
+         Show();
+         timeout = time_ms() + VOLUMETIMEOUT;
+         break;
+    case kMute:
+         if (cDvbApi::PrimaryDvbApi->IsMute()) {
+            Show();
+            timeout = time_ms() + MUTETIMEOUT;
+            }
+         else
+            timeout = 0;
+         break;
+    case kNone: break;
+    default: if ((Key & k_Release) == 0) {
+                Interface->PutKey(Key);
+                return osEnd;
+                }
+    }
+  return time_ms() < timeout ? osContinue : osEnd;
+}
+
 // --- cRecordControl --------------------------------------------------------
 
 cRecordControl::cRecordControl(cDvbApi *DvbApi, cTimer *Timer)

menu.h

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: menu.h 1.38 2002/03/08 15:46:36 kls Exp $
+ * $Id: menu.h 1.39 2002/03/09 15:54:24 kls Exp $
  */
 
 #ifndef _MENU_H
@@ -41,6 +41,19 @@ public:
   virtual eOSState ProcessKey(eKeys Key);
   };
 
+class cDisplayVolume : public cOsdBase {
+private:
+  int timeout;
+  static cDisplayVolume *displayVolume;
+  void Show(void);
+  cDisplayVolume(void);
+public:
+  virtual ~cDisplayVolume();
+  static cDisplayVolume *Create(void);
+  static void Process(eKeys Key);
+  eOSState ProcessKey(eKeys Key);
+  };
+
 class cMenuRecordingItem;
 
 class cMenuRecordings : public cOsdMenu {

vdr.c

@@ -22,7 +22,7 @@
  *
  * The project's page is at http://www.cadsoft.de/people/kls/vdr
  *
- * $Id: vdr.c 1.100 2002/03/08 17:14:43 kls Exp $
+ * $Id: vdr.c 1.101 2002/03/09 17:10:16 kls Exp $
  */
 
 #include <getopt.h>
@@ -357,10 +357,16 @@ int main(int argc, char *argv[])
           case kVolUp:
           case kVolDn|k_Repeat:
           case kVolDn:
-               cDvbApi::PrimaryDvbApi->SetVolume(NORMALKEY(key) == kVolDn ? -VOLUMEDELTA : VOLUMEDELTA);
-               break;
           case kMute:
-               cDvbApi::PrimaryDvbApi->ToggleMute();
+               if (key == kMute) {
+                  if (!cDvbApi::PrimaryDvbApi->ToggleMute() && !Menu)
+                     break; // no need to display "mute off"
+                  }
+               else
+                  cDvbApi::PrimaryDvbApi->SetVolume(NORMALKEY(key) == kVolDn ? -VOLUMEDELTA : VOLUMEDELTA);
+               if (!Menu && (!ReplayControl || !ReplayControl->Visible()))
+                  Menu = cDisplayVolume::Create();
+               cDisplayVolume::Process(key);
                break;
           // Power off:
           case kPower: isyslog(LOG_INFO, "Power button pressed");