This is a temporary commit to save WIP done on this topic.

Development of this feature will only resume after the release of R14.1.0.
Relates to bug 3159.

NOTE: this commit needs to be completed/reworked. It should not be
merged to master as is.

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

kmix/KMixApp.cpp

@@ -26,7 +26,7 @@
 
 
 KMixApp::KMixApp()
-    : KUniqueApplication(), m_kmix( 0 )
+    : KUniqueApplication(), m_kmix(NULL), m_updateMixersTimer(NULL)
 {
    // We handle autostart via standard autostart-enabled .desktop file instead of the session manager
    disableSessionManagement();
@@ -35,6 +35,10 @@ KMixApp::KMixApp()
 
 KMixApp::~KMixApp()
 {
+  if (m_updateMixersTimer)
+  {
+    delete m_updateMixersTimer;
+  }
   if (m_kmix)
   {
     delete m_kmix;
@@ -52,6 +56,9 @@ KMixApp::newInstance()
 	else
 	{
 		m_kmix = new KMixWindow;
+		m_updateMixersTimer = new TQTimer();
+		connect(m_updateMixersTimer, TQT_SIGNAL(timeout()), m_kmix, TQT_SLOT(updateMixers()));
+		m_updateMixersTimer->start(5000);
 		connect(this, TQT_SIGNAL(stopUpdatesOnVisibility()), m_kmix, TQT_SLOT(stopVisibilityUpdates()));
 		if ( isRestored() && TDEMainWindow::canBeRestored(0) )
 		{

kmix/KMixApp.h

@@ -2,6 +2,7 @@
 #define KMixApp_h
 
 #include <kuniqueapplication.h>
+#include <tqtimer.h>
 
 class KMixWindow;
 
@@ -12,9 +13,9 @@ Q_OBJECT
  public:
     KMixApp();
     ~KMixApp();
-    int newInstance ();
+    int newInstance();
 
-    public slots:
+ public slots:
     void quitExtended();  // For a hack on visibility()
 
  signals:
@@ -22,6 +23,7 @@ Q_OBJECT
 
  private:
     KMixWindow *m_kmix;
+    TQTimer *m_updateMixersTimer;
 };
 
 #endif

kmix/kmix-platforms.cpp

@@ -20,8 +20,6 @@
  * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
-/* This code is being #include'd from mixer.cpp */
-
 #ifndef KMIX_PLATFORMS_CPP
 #define KMIX_PLATFORMS_CPP
 

kmix/kmix.cpp

@@ -546,8 +546,16 @@ void KMixWindow::stopVisibilityUpdates()
     m_visibilityUpdateAllowed = false;
 }
 
-void
+void KMixWindow::updateMixers()
-KMixWindow::slotHWInfo() {
+{
+tqWarning("MIKE <KMixWindow> update mixers ENTER");
+	if (MixerToolBox::updateMixer(Mixer::mixers(), m_multiDriverMode, m_hwInfoString))
+	{
+		initMixerWidgets();
+	}
+}
+
+void KMixWindow::slotHWInfo() {
 	KMessageBox::information( 0, m_hwInfoString, i18n("Mixer Hardware Information") );
 }
 

kmix/kmix.h

@@ -109,6 +109,7 @@ KMixWindow : public TDEMainWindow, virtual public KMixIface
    void saveVolumes();
    virtual void applyPrefs( KMixPrefDlg *prefDlg );
    void stopVisibilityUpdates();
+   void updateMixers();
 
   private:
    TDEAccel *m_keyAccel;

kmix/mixer.cpp

@@ -80,8 +80,8 @@ bool Mixer::isValid(int driver, int device)
     Mixer_Backend *mb = mf(device);
     if (mb)
     {
-      bool ret = mb->isValid();
+	bool ret = mb->isValid();
-      delete mb;
+	delete mb;
       return ret;
     }
   }

kmix/mixertoolbox.cpp

@@ -249,7 +249,6 @@ void MixerToolBox::initMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQS
 
 }
 
-
 /*
  * Clean up and free all resources of all found Mixers, which were found in the initMixer() call
  */
@@ -278,10 +277,6 @@ void MixerToolBox::deinitMixer(TQPtrList<Mixer> &mixers)
    // kdDebug(67100) << "OUT MixerToolBox::deinitMixer(TQPtrList<Mixer> &mixers)" << endl;
 }
 
-/**
- * Clean up and free all resources of the given mixers
- * @par mixers The list of mixers to deinitialize.
- */
 /**
  * Scan for Mixers in the System and update the given list. No longer existing mixers
  * will be deinitialized.
@@ -291,12 +286,15 @@ void MixerToolBox::deinitMixer(TQPtrList<Mixer> &mixers)
  * @par multiDriverMode Whether the Mixer scan should try more all backendends.
  *          'true' means to scan all backends. 'false' means: After scanning the
  *          current backend the next backend is only scanned if no Mixers were found yet.
+ * @return true if any change in the mixers list has been detected.
  */
-void MixerToolBox::updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQString& ref_hwInfoString)
+bool MixerToolBox::updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQString& ref_hwInfoString)
 {
+  bool changesDetected = false;
   TQPtrList<Mixer> newMixers;
   // Scan for new mixers
   initMixer(newMixers, multiDriverMode, ref_hwInfoString);
+tqWarning("MIKE <updateMixer> OLD mixer=%d NEW=%d",mixers.count(),newMixers.count());
   // Remove no longer existing mixers
   TQPtrList<Mixer> mixersToDeinit;
   Mixer *searchMixer = NULL;
@@ -314,13 +312,16 @@ void MixerToolBox::updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, T
     }
     if (!searchMixer)
     {
+	changesDetected = true;
 	mixers.take();
 	mixersToDeinit.append(currMixer);
+tqWarning("MIKE <updateMixer> remove mixer=("+currMixer->id()+")="+currMixer->mixerName());
     }
     currMixer = mixers.next();
   }
   deinitMixer(mixersToDeinit);
   // Add newly found mixers
+  int insertLocation = 0;
   searchMixer = newMixers.first();
   while (searchMixer)
   {
@@ -336,11 +337,16 @@ void MixerToolBox::updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, T
     if (!currMixer)
     {
 	// New mixer, append to existing list
+	changesDetected = true;
 	newMixers.take();
-	mixers.append(searchMixer);
+	mixers.insert(insertLocation, searchMixer);
+tqWarning("MIKE <updateMixer> add new mixer=("+searchMixer->id()+")="+searchMixer->mixerName());
     }
     searchMixer = newMixers.next();
+    ++insertLocation;
   }
   // Deallocate duplicated mixers
   deinitMixer(newMixers);
+
+  return changesDetected;
 }

kmix/mixertoolbox.h

@@ -12,12 +12,13 @@ class Mixer;
  * The reason, why it is not put in a common base class is, that the classes are
  * very different and cannot be changed (e.g. KPanelApplet) without major headache.
  */
-class MixerToolBox {
+class MixerToolBox
- public:
+{
+  public:
     static void initMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQString& ref_hwInfoString);
     static void deinitMixer();
     static void deinitMixer(TQPtrList<Mixer>&);
-    static void updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQString& ref_hwInfoString);
+    static bool updateMixer(TQPtrList<Mixer> &mixers, bool multiDriverMode, TQString& ref_hwInfoString);
 };