qt-bugs@ issue : none
Qt Software task ID : none
bugs.kde.org number : 183191
applied: yes
author: Alexis Menard <alexis.menard@nokia.com>

Make sure that QPixmapCache release the old pixmap if
you reinsert a QPixmap with the same key.

This patch is already in 4.5 branch.

--- src/gui/image/qpixmapcache.cpp
+++ src/gui/image/qpixmapcache.cpp
@@ -187,6 +187,11 @@ bool QPMCache::insert(const QString& key, const QPixmap &pixmap, int cost)
         cacheKeys.insert(key, cacheKey);
         return true;
     }
+    qint64 oldCacheKey = cacheKeys.value(key, -1);
+    //If for the same key we add already a pixmap we should delete it
+    if (oldCacheKey != -1)
+        QCache<qint64, QDetachedPixmap>::remove(oldCacheKey);
+
     bool success = QCache<qint64, QDetachedPixmap>::insert(cacheKey, new QDetachedPixmap(pixmap), cost);
     if (success) {
         cacheKeys.insert(key, cacheKey);