1 files changed, 12 insertions, 10 deletions

diff --git a/noncore/styles/theme/ogfxeffect.cpp b/noncore/styles/theme/ogfxeffect.cpp
index 2071a67..90b45fe 100644
--- a/noncore/styles/theme/ogfxeffect.cpp
+++ b/noncore/styles/theme/ogfxeffect.cpp
@@ -24,15 +24,16 @@
 //======================================================================
 
 
 QPixmap& OGfxEffect::gradient(QPixmap &pixmap, const QColor &ca,
         const QColor &cb, GradientType eff, int ncols)
 {
-        QImage image = gradient(pixmap.size(), ca, cb, eff, ncols);
-        pixmap.convertFromImage(image);
-
+        if ( !pixmap. isNull ( )) {
+                QImage image = gradient(pixmap.size(), ca, cb, eff, ncols);
+                pixmap.convertFromImage(image);
+        }
         return pixmap;
 }
 
 QImage OGfxEffect::gradient(const QSize &size, const QColor &ca,
                             const QColor &cb, GradientType eff, int /*ncols*/)
 {    
@@ -277,21 +278,22 @@ QImage OGfxEffect::gradient(const QSize &size, const QColor &ca,
 
 
 QPixmap& OGfxEffect::blend(QPixmap &pixmap, float initial_intensity,
                           const QColor &bgnd, GradientType eff,
                           bool anti_dir, int /*ncols*/)
 {
-    QImage image = pixmap.convertToImage();
-    OGfxEffect::blend(image, initial_intensity, bgnd, eff, anti_dir);
-
-        if ( pixmap. depth ( ) <= 8 )
-                image. convertDepth ( pixmap. depth ( ));
+        if ( !pixmap. isNull ( )) {
+            QImage image = pixmap.convertToImage();
+                OGfxEffect::blend(image, initial_intensity, bgnd, eff, anti_dir);
 
-    pixmap.convertFromImage(image);
+                if ( pixmap. depth ( ) <= 8 )
+                        image. convertDepth ( pixmap. depth ( ));
 
-    return pixmap;
+            pixmap.convertFromImage(image);
+                }
+           return pixmap;
 }
 
 
 QImage& OGfxEffect::blend(QImage &image, float initial_intensity,
                             const QColor &bgnd, GradientType eff,
                             bool anti_dir)