Fix scaling of context view background when size of view changes.

ChangeLog

@@ -27,6 +27,7 @@
 6. If a sidebar view has focus, but sidebar is collapsed, then find action
    should activate playqueue search widget.
 7. FreeBSD 1.0 compile fixes.
+8. Fix scaling of context view background when size of view changes.
 
 1.3.0.1
 -------

context/contextwidget.cpp

@@ -730,7 +730,11 @@ void ContextWidget::updateImage(QImage img, bool created)
             painter.end();
             img = blurred;
         }
+        #ifdef SCALE_CONTEXT_BGND
+        currentImage=img;
+        #else
         currentBackdrop=QPixmap::fromImage(img);
+        #endif
     }
     albumCoverBackdrop=created;
     resizeBackdrop();
@@ -1209,9 +1213,9 @@ void ContextWidget::createBackdrop()
 void ContextWidget::resizeBackdrop()
 {
     #ifdef SCALE_CONTEXT_BGND
-    if (!currentBackdrop.isNull() && !albumCoverBackdrop && currentBackdrop.width()!=width()) {
-        QSize sz(width(), width()*currentBackdrop.height()/currentBackdrop.width());
-        currentBackdrop=currentBackdrop.scaled(sz, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+    if (!albumCoverBackdrop && !currentImage.isNull() &&( currentBackdrop.isNull() || (!currentBackdrop.isNull() && currentBackdrop.width()!=width()))) {
+        QSize sz(width(), width()*currentImage.height()/currentImage.width());
+        currentBackdrop = QPixmap::fromImage(currentImage.scaled(sz, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation));
     }
     #else
     if (!currentBackdrop.isNull() && !albumCoverBackdrop) {

context/contextwidget.h

@@ -148,6 +148,9 @@ private:
     bool useFanArt;
     bool albumCoverBackdrop;
     Song currentSong;
+    #ifdef SCALE_CONTEXT_BGND
+    QImage currentImage;
+    #endif
     QPixmap oldBackdrop;
     QPixmap currentBackdrop;
     QString currentArtist;