KMix: 1) added direct DCOP access to the user selected mixer/device channel used as master.

2) fixed bug with volume update
3) unlinked global keyboard shortcuts for volume control to avoid
clashing with kmilo. A user can still link them manually if needed.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>

9 files changed, 332 insertions, 108 deletions

diff --git a/kmix/CMakeLists.txt b/kmix/CMakeLists.txt
index 08006206..f48d8132 100644
--- a/kmix/CMakeLists.txt
+++ b/kmix/CMakeLists.txt
@@ -60,7 +60,7 @@ tde_add_tdeinit_executable( kmix AUTOMOC
     mixset.cpp mixdevice.cpp mixer_backend.cpp ksmallslider.cpp
     volume.cpp kledbutton.cpp verticaltext.cpp mixerIface.skel
     kmixtoolbox.cpp mixertoolbox.cpp dialogviewconfiguration.cpp
-    KMixApp.cpp dialogselectmaster.cpp
+    KMixApp.cpp dialogselectmaster.cpp kmixIface.skel
   LINK tdeui-shared ${ALSA_LIBRARIES}
 )
 
diff --git a/kmix/Makefile.am b/kmix/Makefile.am
index 1de7f12d..6f832824 100644
--- a/kmix/Makefile.am
+++ b/kmix/Makefile.am
@@ -11,7 +11,7 @@ noinst_HEADERS = kmix.h kmixdockwidget.h kmixprefdlg.h kmixerwidget.h \
 	viewbase.h viewoutput.h viewinput.h viewsliders.h viewswitches.h viewsurround.h viewdockareapopup.h viewgrid.h \
 	mixdevicewidget.h mdwslider.h mdwswitch.h mdwenum.h \
 	mixer.h mixset.h mixdevice.h mixer_backend.h volume.h kledbutton.h version.h kmixtoolbox.h \
-	ksmallslider.h kmixapplet.h mixerIface.h verticaltext.h \
+	ksmallslider.h kmixapplet.h mixerIface.h verticaltext.h kmixIface.h \
 	KMixApp.h dialogviewconfiguration.h kmixtoolbox.h mixertoolbox.h dialogselectmaster.h
 
 
@@ -22,7 +22,7 @@ kmix_la_SOURCES = main.cpp kmix.cpp kmixdockwidget.cpp kmixprefdlg.cpp \
 	viewsliders.cpp viewgrid.cpp \
 	mixdevicewidget.cpp mdwslider.cpp mdwswitch.cpp mdwenum.cpp \
 	kmixerwidget.cpp mixer.cpp mixset.cpp mixdevice.cpp mixer_backend.cpp ksmallslider.cpp \
-	volume.cpp kledbutton.cpp verticaltext.cpp mixerIface.skel \
+	volume.cpp kledbutton.cpp verticaltext.cpp mixerIface.skel kmixIface.skel \
 	kmixtoolbox.cpp mixertoolbox.cpp dialogviewconfiguration.cpp KMixApp.cpp dialogselectmaster.cpp
 
 kmix_la_LIBADD = $(LIB_TDEUI) $(LIB_TDEUTILS) $(LIBALIB) $(LIBOSSAUDIO) $(LIBASOUND) $(LIB_TQT) $(LIB_TDECORE) -lDCOP
diff --git a/kmix/kmix.cpp b/kmix/kmix.cpp
index 5bee4585..69630f61 100644
--- a/kmix/kmix.cpp
+++ b/kmix/kmix.cpp
@@ -61,7 +61,7 @@
  * Constructs a mixer window (KMix main window)
  */
 KMixWindow::KMixWindow()
-	: TDEMainWindow(0, 0, 0, 0), m_showTicks( true ),
+	: DCOPObject("kmix"), TDEMainWindow(0, 0, 0, 0), m_showTicks( true ),
 	m_dockWidget( 0L )
 {
 	m_visibilityUpdateAllowed	= true;
@@ -121,11 +121,11 @@ KMixWindow::initActions()
 
 	m_globalAccel = new TDEGlobalAccel(this, "KMix");
 	m_globalAccel->insert( "Increase volume", i18n( "Increase Volume of Master Channel"), TQString(),
-			TDEShortcut(TQString("XF86AudioRaiseVolume")), TDEShortcut(TQString("XF86AudioRaiseVolume")), TQT_TQOBJECT(this), TQT_SLOT( increaseVolume() ) );
+			TDEShortcut(), TDEShortcut(), TQT_TQOBJECT(this), TQT_SLOT( slotIncreaseVolume() ) );
 	m_globalAccel->insert( "Decrease volume", i18n( "Decrease Volume of Master Channel"), TQString(),
-			TDEShortcut(TQString("XF86AudioLowerVolume")), TDEShortcut(TQString("XF86AudioLowerVolume")), TQT_TQOBJECT(this), TQT_SLOT( decreaseVolume() ) );
+			TDEShortcut(), TDEShortcut(), TQT_TQOBJECT(this), TQT_SLOT( slotDecreaseVolume() ) );
 	m_globalAccel->insert( "Toggle mute", i18n( "Toggle Mute of Master Channel"), TQString(),
-			TDEShortcut(TQString("XF86AudioMute")), TDEShortcut(TQString("XF86AudioMute")), TQT_TQOBJECT(this), TQT_SLOT( toggleMuted() ) );
+			TDEShortcut(), TDEShortcut(), TQT_TQOBJECT(this), TQT_SLOT( slotToggleMuted() ) );
 	m_globalAccel->readSettings();
 	m_globalAccel->updateConnections();
 
@@ -619,40 +619,162 @@ KMixWindow::configureGlobalShortcuts()
         m_globalAccel->updateConnections();
 }
 
-void
-KMixWindow::toggleMuted()
+// KMixIface DCOP interface methods
+void KMixWindow::setVolume(int percentage)
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      mixerMaster->setMasterVolume(percentage);
+   }
+}
+
+void KMixWindow::increaseVolume(int percentage)
 {
-   Mixer* mixerMaster = Mixer::masterCard();
-   if ( mixerMaster != 0 ) {
-      MixDevice* md = mixerMaster->masterDevice();
-      if ( md != 0 && md->hasMute() ) {
-         mixerMaster->toggleMute(md->num());
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         mixerMaster->increaseVolume(md->num(), percentage);
       }
    }
 }
 
-void
-KMixWindow::increaseVolume()
+void KMixWindow::decreaseVolume(int percentage)
 {
-   Mixer* mixerMaster = Mixer::masterCard();
-   if ( mixerMaster != 0 ) {
-      MixDevice* md = mixerMaster->masterDevice();
-      if ( md != 0 ) {
-         mixerMaster->increaseVolume(md->num());
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         mixerMaster->decreaseVolume(md->num(), percentage);
       }
    }
 }
 
-void
-KMixWindow::decreaseVolume()
+int KMixWindow::volume()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      return mixerMaster->masterVolume();
+   }
+   return -1;
+}
+
+void KMixWindow::setAbsoluteVolume(long absoluteVolume)
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         return mixerMaster->setAbsoluteVolume(md->num(), absoluteVolume);
+      }
+   }
+}
+
+long KMixWindow::absoluteVolume()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         return mixerMaster->absoluteVolume(md->num());
+      }
+   }
+   return -1L;
+}
+
+long KMixWindow::absoluteVolumeMin()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         return mixerMaster->absoluteVolumeMin(md->num());
+      }
+   }
+   return -1L;
+}
+
+long KMixWindow::absoluteVolumeMax()
 {
-   Mixer* mixerMaster = Mixer::masterCard();
-   if ( mixerMaster != 0 ) {
-      MixDevice* md = mixerMaster->masterDevice();
-      if ( md != 0 ) {
-         mixerMaster->decreaseVolume(md->num());
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      MixDevice *md = mixerMaster->masterDevice();
+      if (md)
+      {
+         return mixerMaster->absoluteVolumeMax(md->num());
       }
    }
+   return -1L;
+}
+
+void KMixWindow::setMute(bool on)
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      mixerMaster->setMasterMute(on);
+   }
+}
+
+void KMixWindow::toggleMute()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      mixerMaster->toggleMasterMute();
+   }
+}
+
+bool KMixWindow::mute()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      return mixerMaster->masterMute();
+   }
+   return true;
+}
+
+TQString KMixWindow::mixerName()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      return mixerMaster->mixerName();
+   }
+   return TQString::null;
+}
+
+int KMixWindow::deviceIndex()
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      return mixerMaster->masterDeviceIndex();
+   }
+   return -1;
+}
+
+void KMixWindow::setBalance(int balance)
+{
+   Mixer *mixerMaster = Mixer::masterCard();
+   if (mixerMaster)
+   {
+      mixerMaster->setBalance(balance);
+   }
 }
 
 #include "kmix.moc"
diff --git a/kmix/kmix.h b/kmix/kmix.h
index e04aee43..e24c457a 100644
--- a/kmix/kmix.h
+++ b/kmix/kmix.h
@@ -49,18 +49,38 @@ class Mixer;
 
 #include "mixer.h"
 #include "mixdevicewidget.h"
+#include "kmixIface.h"
 
 
 class 
-KMixWindow : public TDEMainWindow
+KMixWindow : public TDEMainWindow, virtual public KMixIface
 {
    Q_OBJECT
-  
 
   public:
    KMixWindow();
    ~KMixWindow();
 
+   // Additional functions for DCOP interface
+   void setVolume(int percentage);
+   void increaseVolume(int percentage);
+   void decreaseVolume(int percentage);
+   int volume();
+
+   void setAbsoluteVolume(long absoluteVolume);
+   long absoluteVolume();
+   long absoluteVolumeMin();
+   long absoluteVolumeMax();
+
+   void setMute(bool on);
+   void toggleMute();
+   bool mute();
+
+   TQString mixerName();
+   int deviceIndex();
+
+   void setBalance(int balance);
+
   protected slots:
    void saveSettings();
 
@@ -130,9 +150,9 @@ KMixWindow : public TDEMainWindow
    void slotHWInfo();
    void showSelectedMixer( int mixer );
    void configureGlobalShortcuts();
-   void toggleMuted();
-   void increaseVolume();
-   void decreaseVolume();
+   void slotToggleMuted() { toggleMute(); }
+   void slotIncreaseVolume() { increaseVolume(5); }
+   void slotDecreaseVolume() { decreaseVolume(5); }
 };
 
 #endif // KMIX_H
diff --git a/kmix/kmixIface.h b/kmix/kmixIface.h
new file mode 100644
index 00000000..6d314d1b
--- /dev/null
+++ b/kmix/kmixIface.h
@@ -0,0 +1,82 @@
+#ifndef __KMIX_IFACE_H
+#define __KMIX_IFACE_H
+
+#include <dcopobject.h>
+
+/**
+  Provides a subset of MixerIface DCOP interface tailored to specifically
+  act onto the current device/channel selected by the user as main channel
+*/
+
+class KMixIface : virtual public DCOPObject
+{
+   K_DCOP
+
+k_dcop:
+   /**
+    Sets the volume to the percentage specified in the parameter.
+    */
+   virtual void setVolume(int percentage)=0;
+   /**
+    Increase the volume by the percentage specified in the parameter.
+    */
+   virtual void increaseVolume(int percentage)=0;
+   /**
+    Decrease the volume by the percentage specified in the parameter.
+    */
+   virtual void decreaseVolume(int percentage)=0;
+   /**
+    Returns the volume of the device (as a percentage, 0..100).
+    */
+   virtual int volume()=0;
+
+   /**
+    Sets the absolute volume of the device. Lower bound is absoluteVolumeMin(),
+    upper bound is absoluteVolumeMax().
+    */
+   virtual void setAbsoluteVolume(long absoluteVolume)=0;
+   /**
+    Returns the absolute volume of the device. The volume is in the range of
+    absoluteVolumeMin() <= absoluteVolume() <= absoluteVolumeMax()
+    */
+   virtual long absoluteVolume()=0;
+   /**
+    Returns the absolute maximum volume of the device.
+    */
+   virtual long absoluteVolumeMin()=0;
+   /**
+    Returns the absolute minimum volume of the device.
+    */
+   virtual long absoluteVolumeMax()=0;
+
+   /**
+    Mutes or unmutes the specified device.
+    */
+   virtual void setMute(bool on)=0;
+   /**
+    Toggles mute-state for the given device.
+    */
+   virtual void toggleMute()=0;
+   /**
+    Returns if the given device is muted or not. If no device is
+    available, it is reported as muted.
+    */
+   virtual bool mute()=0;
+
+   /**
+    Returns the name of the mixer.
+    */
+   virtual TQString mixerName()=0;
+   /**
+    Returns the index of the master device
+    */
+   virtual int deviceIndex()=0;
+
+   /**
+    Sets the balance of the device (negative means balanced to the left
+    speaker and positive to the right one)
+    */
+   virtual void setBalance(int balance)=0;
+};
+
+#endif
diff --git a/kmix/mdwslider.cpp b/kmix/mdwslider.cpp
index 042f3723..6b4c3f51 100644
--- a/kmix/mdwslider.cpp
+++ b/kmix/mdwslider.cpp
@@ -760,15 +760,7 @@ void MDWSlider::setDisabled( bool value )
 */
 void MDWSlider::increaseVolume()
 {
-	Volume vol = m_mixdevice->getVolume();
-	long inc = vol.maxVolume() / 20;
-	if ( inc == 0 )
-		inc = 1;
-	for ( int i = 0; i < vol.count(); i++ ) {
-		long newVal = (vol[i]) + inc;
-		m_mixdevice->setVolume( i, newVal < vol.maxVolume() ? newVal : vol.maxVolume() );
-	}
-	m_mixer->commitVolumeChange(m_mixdevice);
+	m_mixer->increaseVolume(m_mixdevice->num(), 5);
 }
 
 /**
@@ -777,15 +769,7 @@ void MDWSlider::increaseVolume()
 */
 void MDWSlider::decreaseVolume()
 {
-	Volume vol = m_mixdevice->getVolume();
-	long inc = vol.maxVolume() / 20;
-	if ( inc == 0 )
-		inc = 1;
-	for ( int i = 0; i < vol.count(); i++ ) {
-		long newVal = (vol[i]) - inc;
-		m_mixdevice->setVolume( i, newVal > 0 ? newVal : 0 );
-	}
-	m_mixer->commitVolumeChange(m_mixdevice);
+	m_mixer->decreaseVolume(m_mixdevice->num(), 5);
 }
 
 
diff --git a/kmix/mixer.cpp b/kmix/mixer.cpp
index 9e3aa359..0cc4fbcf 100644
--- a/kmix/mixer.cpp
+++ b/kmix/mixer.cpp
@@ -514,6 +514,9 @@ void Mixer::setVolume( int deviceidx, int percentage )
   // @todo The next call doesn't handle negative volumes correctly.
   vol.setAllVolumes( (percentage*vol.maxVolume())/100 );
   _mixerBackend->writeVolumeToHW(deviceidx, vol);
+  // Make sure volume reading is synced
+  readSetFromHWforceUpdate();
+  TQTimer::singleShot(50, this, TQT_SLOT(readSetFromHW()));
 }
 
 /**
@@ -579,12 +582,15 @@ void Mixer::setAbsoluteVolume( int deviceidx, long absoluteVolume ) {
   Volume vol=mixdev->getVolume();
   vol.setAllVolumes( absoluteVolume );
   _mixerBackend->writeVolumeToHW(deviceidx, vol);
+  // Make sure volume reading is synced
+  readSetFromHWforceUpdate();
+  TQTimer::singleShot(50, this, TQT_SLOT(readSetFromHW()));
 }
 
 // @dcop , especially for use in KMilo
-long Mixer::absoluteVolume( int deviceidx )
+long Mixer::absoluteVolume(int deviceidx)
 {
-   MixDevice *mixdev= mixDeviceByType( deviceidx );
+   MixDevice *mixdev= mixDeviceByType(deviceidx);
    if (!mixdev) return 0;
 
    Volume vol=mixdev->getVolume();
@@ -593,9 +599,9 @@ long Mixer::absoluteVolume( int deviceidx )
 }
 
 // @dcop , especially for use in KMilo
-long Mixer::absoluteVolumeMax( int deviceidx )
+long Mixer::absoluteVolumeMax(int deviceidx)
 {
-   MixDevice *mixdev= mixDeviceByType( deviceidx );
+   MixDevice *mixdev= mixDeviceByType(deviceidx);
    if (!mixdev) return 0;
 
    Volume vol=mixdev->getVolume();
@@ -604,9 +610,9 @@ long Mixer::absoluteVolumeMax( int deviceidx )
 }
 
 // @dcop , especially for use in KMilo
-long Mixer::absoluteVolumeMin( int deviceidx )
+long Mixer::absoluteVolumeMin(int deviceidx)
 {
-   MixDevice *mixdev= mixDeviceByType( deviceidx );
+   MixDevice *mixdev= mixDeviceByType(deviceidx);
    if (!mixdev) return 0;
 
    Volume vol=mixdev->getVolume();
@@ -626,44 +632,54 @@ int Mixer::masterVolume()
 }
 
 // @dcop
-void Mixer::increaseVolume( int deviceidx )
+void Mixer::increaseVolume(int deviceidx, int percentage)
 {
-  MixDevice *mixdev= mixDeviceByType( deviceidx );
-  if (mixdev != 0)
+  MixDevice *mixdev= mixDeviceByType(deviceidx);
+  if (mixdev && percentage > 0)
   {
     Volume vol = mixdev->getVolume();
-    long inc = vol.maxVolume() / 20;
-    if (inc == 0)
-    {
-      inc = 1;
-    }
-    for (int i = 0; i < vol.count(); i++)
+    long maxVol = vol.maxVolume();
+    if (maxVol > 0)
     {
-      long newVal = (vol[i]) + inc;
-      mixdev->setVolume(i, newVal < vol.maxVolume() ? newVal : vol.maxVolume());
+      for (int i = 0; i < vol.count(); i++)
+      {
+        double perc = 100.0 * vol[i] / maxVol;
+        perc += percentage;
+        if (perc > 100.0)
+        {
+          perc = 100.0;
+        }
+        long newVal = (long)(perc * maxVol / 100.0);
+        mixdev->setVolume(i, newVal);
+      }
+      commitVolumeChange(mixdev);
     }
-    commitVolumeChange(mixdev);
   }
 }
 
 // @dcop
-void Mixer::decreaseVolume( int deviceidx )
+void Mixer::decreaseVolume(int deviceidx, int percentage)
 {
-  MixDevice *mixdev= mixDeviceByType( deviceidx );
-  if (mixdev != 0)
+  MixDevice *mixdev= mixDeviceByType(deviceidx);
+  if (mixdev && percentage > 0)
   {
     Volume vol = mixdev->getVolume();
-    long inc = vol.maxVolume() / 20;
-    if (inc == 0)
-    {
-      inc = 1;
-    }
-    for (int i = 0; i < vol.count(); i++)
+    long maxVol = vol.maxVolume();
+    if (maxVol > 0)
     {
-      long newVal = (vol[i]) - inc;
-      mixdev->setVolume(i, newVal > 0 ? newVal : 0);
+      for (int i = 0; i < vol.count(); i++)
+      {
+        double perc = 100.0 * vol[i] / maxVol;
+        perc -= percentage;
+        if (perc < 0.0)
+        {
+          perc = 0.0;
+        }
+        long newVal = (long)(perc * maxVol / 100.0);
+        mixdev->setVolume(i, newVal);
+      }
+      commitVolumeChange(mixdev);
     }
-    commitVolumeChange(mixdev);
   }
 }
 
diff --git a/kmix/mixer.h b/kmix/mixer.h
index 80610c59..47b49ebb 100644
--- a/kmix/mixer.h
+++ b/kmix/mixer.h
@@ -113,29 +113,29 @@ class Mixer : public TQObject, virtual public MixerIface
       void setMasterDevice(TQString&);
 
       /// DCOP oriented methods (look at mixerIface.h for the descriptions)
-      virtual void setVolume( int deviceidx, int percentage );
-      virtual void setAbsoluteVolume( int deviceidx, long absoluteVolume );
-      virtual void setMasterVolume( int percentage );
-
-      virtual void increaseVolume( int deviceidx );
-      virtual void decreaseVolume( int deviceidx );
-
-      virtual long absoluteVolume( int deviceidx );
-      virtual long absoluteVolumeMin( int deviceidx );
-      virtual long absoluteVolumeMax( int deviceidx );
-      virtual int volume( int deviceidx );
-      virtual int masterVolume();
-      virtual int masterDeviceIndex();
-
-      virtual void setMute( int deviceidx, bool on );
-      virtual void setMasterMute( bool on );
-      virtual bool mute( int deviceidx );
-      virtual bool masterMute();
-      virtual void toggleMute( int deviceidx );
-      virtual void toggleMasterMute();
-      virtual bool isRecordSource( int deviceidx );
-
-      virtual bool isAvailableDevice( int deviceidx );
+      void setVolume( int deviceidx, int percentage );
+      void setAbsoluteVolume( int deviceidx, long absoluteVolume );
+      void setMasterVolume( int percentage );
+
+      void increaseVolume( int deviceidx, int percentage );
+      void decreaseVolume( int deviceidx, int percentage );
+
+      long absoluteVolume( int deviceidx );
+      long absoluteVolumeMin( int deviceidx );
+      long absoluteVolumeMax( int deviceidx );
+      int volume( int deviceidx );
+      int masterVolume();
+      int masterDeviceIndex();
+
+      void setMute( int deviceidx, bool on );
+      void setMasterMute( bool on );
+      bool mute( int deviceidx );
+      bool masterMute();
+      void toggleMute( int deviceidx );
+      void toggleMasterMute();
+      bool isRecordSource( int deviceidx );
+
+      bool isAvailableDevice( int deviceidx );
 
       void commitVolumeChange( MixDevice* md );
 
diff --git a/kmix/mixerIface.h b/kmix/mixerIface.h
index ef8bbbf5..10386cdb 100644
--- a/kmix/mixerIface.h
+++ b/kmix/mixerIface.h
@@ -20,13 +20,13 @@ k_dcop:
    virtual void setMasterVolume( int percentage )=0;
 
    /**
-    Increase the volume of the given device by a 5% .
+    Increase the volume of the given device by a given percentage.
     */
-   virtual void increaseVolume( int deviceidx )=0;
+   virtual void increaseVolume( int deviceidx, int percentage )=0;
    /**
-    Decrease the volume of the given device by a 5% .
+    Decrease the volume of the given device by a a given percentage.
     */
-   virtual void decreaseVolume( int deviceidx )=0;
+   virtual void decreaseVolume( int deviceidx, int percentage )=0;
 
    /**
     Returns the volume of the device (as a percentage, 0..100).