qt-bugs@ issue : N132275

Trolltech task ID : 132484

applied: no

author: David Faure

When selecting a bunch of icons in a QListView in icon mode, and dragging them around in the

view, there is sometimes one black pixel that is drawn in the topleft corner of the icons being

moved, and that pixel isn't getting erased, so one ends up with some kind of "freestyle drawing"

with a 1-pixel-wide black pen. Fix will be in Qt-4.2.1.

--- src/gui/itemviews/qabstractitemview_p.h

+++ src/gui/itemviews/qabstractitemview_p.h

@@ -125,10 +125,13 @@

     inline void paintDropIndicator(QPainter *painter)

     {

-        if (showDropIndicator && state == QAbstractItemView::DraggingState)

+        if (showDropIndicator && state == QAbstractItemView::DraggingState &&

+            !dropIndicatorRect.isNull())

+        {

             if (dropIndicatorRect.height() == 0) // FIXME: should be painted by style

                 painter->drawLine(dropIndicatorRect.topLeft(), dropIndicatorRect.topRight());

             else painter->drawRect(dropIndicatorRect);

+        }

     }

 #endif