stop crashing due to undefined destruction order

svn path=/trunk/KDE/kdebase/workspace/libs/plasma/; revision=845983

paintutils.cpp

@@ -42,6 +42,7 @@ void shadowBlur(QImage &image, int radius, const QColor &color)
     QPainter p(&image);
     p.setCompositionMode(QPainter::CompositionMode_SourceIn);
     p.fillRect(image.rect(), color);
+    p.end();
 }
 
 QPixmap shadowText(QString text, QColor textColor, QColor shadowColor, QPoint offset, int radius)

widgets/signalplotter.cpp

@@ -514,6 +514,7 @@ QPixmap SignalPlotter::getSnapshotImage(uint w, uint height)
     QPixmap image = QPixmap(newWidth, height);
     QPainter p(&image);
     drawWidget(&p, newWidth, height, newWidth);
+    p.end();
     return image;
 }