Fix a couple of graphical glitches in Amarok under ARGB 32 bit visual mode

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/amarok@1247330 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

amarok/src/playerwindow.cpp

@@ -45,6 +45,8 @@ email                : markey@web.de
 #include <kurldrag.h>
 #include <kwin.h>            //eventFilter()
 
+#include <kimageeffect.h>
+
 //simple function for fetching amarok images
 namespace Amarok
 {
@@ -54,14 +56,22 @@ namespace Amarok
     {
         TQString file = !filename.tqendsWith( ".png", false ) ? "amarok/images/%1.png" : "amarok/images/%1";
 
-        return TQPixmap( locate( "data", file.tqarg( filename ) ), "PNG" );
+        TQPixmap pix;
+        TQImage img( locate( "data", file.tqarg( filename ) ), "PNG" );
+        if (TQPaintDevice::x11AppDepth() == 32) pix.convertFromImage(KImageEffect::convertToPremultipliedAlpha( img ));
+        else pix.convertFromImage( img );
+        return pix;
     }
 
     TQPixmap getJPG( const TQString &filename )
     {
         TQString file = !filename.tqendsWith( ".jpg", false ) ? "amarok/images/%1.jpg" : "amarok/images/%1";
 
-        return TQPixmap( locate( "data", TQString( "amarok/images/%1.jpg" ).tqarg( filename ) ), "JPEG" );
+        TQPixmap pix;
+        TQImage img( locate( "data", TQString( "amarok/images/%1.jpg" ).tqarg( filename ) ), "JPEG" );
+        if (TQPaintDevice::x11AppDepth() == 32) pix.convertFromImage(KImageEffect::convertToPremultipliedAlpha( img ));
+        else pix.convertFromImage( img );
+        return pix;
     }
 }
 

amarok/src/sliderwidget.cpp

@@ -359,8 +359,11 @@ Amarok::VolumeSlider::VolumeSlider( TQWidget *parent, uint max )
     setWFlags( getWFlags() | WNoAutoErase );
     setFocusPolicy( TQ_NoFocus );
 
+    if (TQPaintDevice::x11AppDepth() == 32) m_pixmapInset.convertFromImage(KImageEffect::convertToPremultipliedAlpha( m_pixmapInset.convertToImage() ));
+
     // BEGIN Calculate handle animation pixmaps for mouse-over effect
     TQImage pixmapHandle    ( locate( "data","amarok/images/volumeslider-handle.png" ) );
+    if (TQPaintDevice::x11AppDepth() == 32) pixmapHandle = KImageEffect::convertToPremultipliedAlpha( pixmapHandle );
     TQImage pixmapHandleGlow( locate( "data","amarok/images/volumeslider-handle_glow.png" ) );
 
     float opacity = 0.0;
@@ -369,6 +372,7 @@ Amarok::VolumeSlider::VolumeSlider( TQWidget *parent, uint max )
     for ( int i = 0; i < ANIM_MAX; ++i ) {
         dst = pixmapHandle;
         KImageEffect::blend( pixmapHandleGlow, dst, opacity );
+        if (TQPaintDevice::x11AppDepth() == 32) dst = KImageEffect::convertToPremultipliedAlpha( dst );
         m_handlePixmaps.append( TQPixmap( dst ) );
         opacity += step;
     }