Fix a bug in QPixmapCache when the cache is trimmed by QCache.

There was a bug in QPixmapCache when QCache trims the content, some keys
were not invalidated. The ifdef for WinCE (that i removed) was a wrong
fix, it let the auto-test pass but it doesn't fix the bug. The approach
here is to add a QPixmapCacheEntry that release the key it owns when
QCache deletes it : we are now sure that nothing happen in our back.

Reviewed-by:paul
Reviewed-by:trond

1 files changed, 4 insertions, 2 deletions

diff --git a/src/gui/image/qpixmapcache_p.h b/src/gui/image/qpixmapcache_p.h
index 33f93bc..84e4a03 100644
--- a/src/gui/image/qpixmapcache_p.h
+++ b/src/gui/image/qpixmapcache_p.h
@@ -76,10 +76,10 @@ public:
 };
 
 // XXX: hw: is this a general concept we need to abstract?
-class QDetachedPixmap : public QPixmap
+class QPixmapCacheEntry : public QPixmap
 {
 public:
-    QDetachedPixmap(const QPixmap &pix) : QPixmap(pix)
+    QPixmapCacheEntry(const QPixmapCache::Key &key, const QPixmap &pix) : QPixmap(pix), key(key)
     {
         if (data && data->classId() == QPixmapData::RasterClass) {
             QRasterPixmapData *d = static_cast<QRasterPixmapData*>(data.data());
@@ -91,6 +91,8 @@ public:
             }
         }
     }
+    ~QPixmapCacheEntry();
+    QPixmapCache::Key key;
 };
 
 QT_END_NAMESPACE