Part of batch commit to enable true tasktray resize support for Trinity applications

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdemultimedia@1124758 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kmix/kmixdockwidget.cpp

@@ -112,7 +112,7 @@ KMixDockWidget::createMasterVolWidget()
         // In case that there is no mixer installed, there will be no newVolumeLevels() signal's
         // Thus we prepare the dock areas manually
         setVolumeTip();
-        updatePixmap();
+        updatePixmap(false);
         return;
     }
     // create devices
@@ -126,7 +126,7 @@ KMixDockWidget::createMasterVolWidget()
        The call to m_mixer->readSetFromHWforceUpdate() is most likely superfluous, even if we don't use QSocketNotifier (e.g. in backends OSS, Solaris, ...)
      */
     setVolumeTip();
-    updatePixmap();
+    updatePixmap(false);
     /* We are setting up 3 connections:
      * Refreshig the _dockAreaPopup (not anymore neccesary, because ViewBase already does it)
      * Refreshing the Tooltip
@@ -135,9 +135,13 @@ KMixDockWidget::createMasterVolWidget()
      */
     //    connect( m_mixer, SIGNAL(newVolumeLevels()), _dockAreaPopup, SLOT(refreshVolumeLevels()) );
     connect( m_mixer, SIGNAL(newVolumeLevels()), this, SLOT(setVolumeTip() ) );
-    connect( m_mixer, SIGNAL(newVolumeLevels()), this, SLOT(updatePixmap() ) );
+    connect( m_mixer, SIGNAL(newVolumeLevels()), this, SLOT(slotUpdatePixmap() ) );
 }
 
+void KMixDockWidget::slotUpdatePixmap()
+{
+    updatePixmap(false);
+}
 
 void KMixDockWidget::selectMaster()
 {
@@ -208,7 +212,7 @@ KMixDockWidget::setVolumeTip()
 }
 
 void
-KMixDockWidget::updatePixmap()
+KMixDockWidget::updatePixmap(bool force)
 {
     MixDevice *md = 0;
     if ( _dockAreaPopup != 0 ) {
@@ -228,17 +232,29 @@ KMixDockWidget::updatePixmap()
 	newPixmapType = 'd';
     }
 
-
+    if (( newPixmapType != _oldPixmapType ) || (force == true)) {
-    if ( newPixmapType != _oldPixmapType ) {
 	// Pixmap must be changed => do so
+	// Honor Free Desktop specifications that allow for arbitrary system tray icon sizes
+	QPixmap origpixmap;
+	QPixmap scaledpixmap;
+	QImage newIcon;
 	switch ( newPixmapType ) {
-	case 'e': setPixmap( loadIcon( "kmixdocked_error" ) ); break;
+		case 'e': origpixmap = loadSizedIcon( "kmixdocked_error", width() ); break;
-	case 'm': setPixmap( loadIcon( "kmixdocked_mute"  ) ); break;
+		case 'm': origpixmap = loadSizedIcon( "kmixdocked_mute" , width() ); break;
-	case 'd': setPixmap( loadIcon( "kmixdocked"       ) ); break;
+		case 'd': origpixmap = loadSizedIcon( "kmixdocked"      , width() ); break;
 	}
+	newIcon = origpixmap;
+	newIcon = newIcon.smoothScale(width(), height());
+	scaledpixmap = newIcon;
+	setPixmap(scaledpixmap);
+
+	_oldPixmapType = newPixmapType;
     }
+}
 
-    _oldPixmapType = newPixmapType;
+void KMixDockWidget::resizeEvent ( QResizeEvent * )
+{
+	updatePixmap(true);
 }
 
 void

kmix/kmixdockwidget.h

@@ -56,7 +56,8 @@ class KMixDockWidget : public KSystemTray  {
 
  public slots:
    void setVolumeTip();
-   void updatePixmap();
+   void updatePixmap(bool force);
+   void slotUpdatePixmap();
 
  protected:
    void createMasterVolWidget();
@@ -66,6 +67,7 @@ class KMixDockWidget : public KSystemTray  {
    void wheelEvent(QWheelEvent *);
    void contextMenuAboutToShow( KPopupMenu* menu );
    void toggleMinimizeRestore();
+   void resizeEvent ( QResizeEvent * );
 
  private:
    bool _playBeepOnVolumeChange;