Add fade transition between file icon/preview changes in the sidebar.

svn path=/trunk/KDE/kdebase/apps/; revision=654581

1 files changed, 10 insertions, 0 deletions

diff --git a/src/pixmapviewer.h b/src/pixmapviewer.h
index a4c0dd7f5..daa4f269a 100644
--- a/src/pixmapviewer.h
+++ b/src/pixmapviewer.h
@@ -23,6 +23,7 @@
 
 #include <QtGui/QWidget>
 #include <QtGui/QPixmap>
+#include <QTimeLine>
 
 class QPaintEvent;
 
@@ -47,8 +48,17 @@ public:
 protected:
     virtual void paintEvent(QPaintEvent* event);
 
+private slots:
+    void beginTransition();
+    void finishTransition();
+
 private:
     QPixmap m_pixmap;
+    QPixmap m_nextPixmap;
+    QPixmap m_pendingPixmap;
+    QTimeLine m_animation;
+    int m_animationStep;
+
 };