SVN commit 759630 by aseigo:

ensure that the file still exists before actually trying to render it; ultimately a KDirWatch should be placed on all the image paths used and deleted files should result in them being removed from the list. so this changes the crasher into just a bug ...
CCBUG:155302


 M  +6 -4      backgrounddialog.cpp  
 M  +1 -1      backgroundpackage.cpp  


--- trunk/KDE/kdebase/workspace/plasma/containments/desktop/backgrounddialog.cpp #759629:759630
@@ -521,16 +521,16 @@
     if (wallpaper.isEmpty()) {
         return;
     }
-    
+
     // add background to the model
     m_model->addBackground(wallpaper);
-    
+
     // select it
     int index = m_model->indexOf(wallpaper);
     if (index != -1) {
         m_view->setCurrentIndex(index);
     }
-    
+
     // save it
     m_selected << wallpaper;
 }
@@ -584,7 +584,9 @@
 
 void BackgroundDialog::setPreview(const QString& img, Background::ResizeMethod method)
 {
-    m_preview_token = m_preview_renderer.render(img, m_color->color(), method, Qt::FastTransformation);
+    if (QFile::exists(img)) {
+        m_preview_token = m_preview_renderer.render(img, m_color->color(), method, Qt::FastTransformation);
+    }
 }
 
 void BackgroundDialog::slotAddDir()
--- trunk/KDE/kdebase/workspace/plasma/containments/desktop/backgroundpackage.cpp #759629:759630
@@ -185,7 +185,7 @@
     // choose the nearest resolution
     float best;
     QString bestImage;
-    foreach (QString entry, images) {
+    foreach (const QString &entry, images) {
         QSize candidate = resSize(QFileInfo(entry).baseName());
         if (candidate == QSize()) {
             continue;