KMix: dock icon fallback algorithm

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

kmix/kmixdockwidget.cpp

@@ -343,14 +343,32 @@ KMixDockWidget::updatePixmap(bool force)
 	TQPixmap origpixmap;
 	TQPixmap scaledpixmap;
 	TQImage newIcon;
+
+	TQStringList fallback;
 	switch ( newPixmapType ) {
-		// AFAIK no icon theme has an icon analogous to kmixdocked_error
+		case 'm': fallback << "audio-volume-muted"  << "kmixdocked_mute"; break;
-		case 'e': origpixmap = isShown() ? loadSizedIcon( "kmixdocked_error"   , width() ) : loadIcon( "kmixdocked_error"    ); break;
+		case 'L': fallback << "audio-volume-low"    << "kmixdocked";	  break;
-		case 'm': origpixmap = isShown() ? loadSizedIcon( "audio-volume-muted" , width() ) : loadIcon( "audio-volume-muted"  ); break;
+		case 'M': fallback << "audio-volume-medium" << "kmixdocked";	  break;
-		case 'L': origpixmap = isShown() ? loadSizedIcon( "audio-volume-low"   , width() ) : loadIcon( "audio-volume-low"    ); break;
+		case 'H': fallback << "audio-volume-high"   << "kmixdocked";	  break;
-		case 'M': origpixmap = isShown() ? loadSizedIcon( "audio-volume-medium", width() ) : loadIcon( "audio-volume-medium" ); break;
+	}
-		case 'H': origpixmap = isShown() ? loadSizedIcon( "audio-volume-high"  , width() ) : loadIcon( "audio-volume-high"   ); break;
+
+	TQString icon = TQString::null;
+	for(TQStringList::iterator it = fallback.begin(); it != fallback.end(); ++it)
+	{
+		/* Check if icon exists */
+		if(!kapp->iconLoader()->iconPath((*it), TDEIcon::User, true).isNull())
+		{
+			icon = (*it);
+			break;
 		}
+	}
+
+	if(icon.isNull())
+	{
+		icon = "kmixdocked_error";
+	}
+
+	origpixmap = isShown() ? loadSizedIcon(icon, width()) : loadIcon(icon);
 	newIcon    = origpixmap;
 	if (isShown()) {
 		newIcon = newIcon.smoothScale(width(), height());