Revert patch using the native graphicssystem as default

I'm trusting Christoph Feck's advice here. Additionally the smooth scaling
has been activated to fix bug 290865.

BUG: 290865
FIXED-IN: 4.8.0

2 files changed, 2 insertions, 6 deletions

diff --git a/src/kitemviews/kpixmapmodifier.cpp b/src/kitemviews/kpixmapmodifier.cpp
index f6838c032..91f22da3c 100644
--- a/src/kitemviews/kpixmapmodifier.cpp
+++ b/src/kitemviews/kpixmapmodifier.cpp
@@ -362,10 +362,10 @@ void KPixmapModifier::scale(QPixmap& pixmap, const QSize& scaledSize)
                          0, 0, 0, 0, 0, 0, scaledPixmap.width(), scaledPixmap.height());
         pixmap = scaledPixmap;
     } else {
-        pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::FastTransformation);
+        pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
     }
 #else
-    pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::FastTransformation);
+    pixmap = pixmap.scaled(scaledSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
 #endif
 }
 
diff --git a/src/main.cpp b/src/main.cpp
index 42a3fe432..d55b5e71c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -82,10 +82,6 @@ KDE_EXPORT int kdemain(int argc, char **argv)
     options.add("+[Url]", ki18nc("@info:shell", "Document to open"));
     KCmdLineArgs::addCmdLineOptions(options);
 
-    // Use the native graphicssystem per default, as the scaling of pixmaps is just way too
-    // slow with the raster graphicssystem (see KPixmapModifier::scalePixmap()).
-    QApplication::setGraphicsSystem("native");
-
     DolphinApplication app;
     KGlobal::locale()->insertCatalog("libkonq"); // needed for applications using libkonq