Hi all,

I'm using QPixmapCache to store some icons (png), icons are then used to display proper pixmap for subclassed QGraphicsPixmapItem.
QPixmapCache is filled once during application start, then each time when I create new QGraphicsPixmapItem, inside constructor of that item I'm doing:
Qt Code: 
  1. if(!QPixmapCache::find(QString::fromUtf8("icon_%1_state_1").arg(button_type),&pixStandard))
  2.             qWarning()<<"ButtonsPixmapItem::ButtonsPixmapItem no pixmap for icon_1_state_1";
  3. if(!QPixmapCache::find(QString::fromUtf8("icon_%1_state2").arg(button_type),&pixShortPress))
  4.             qWarning()<<"ButtonsPixmapItem::ButtonsPixmapItem no pixmap for icon_1_state2";
  5. if(!QPixmapCache::find(QString::fromUtf8("icon_%1_state3").arg(button_type),&pixLongPress))
  6.             qWarning()<<"ButtonsPixmapItem::ButtonsPixmapItem no pixmap for icon_1_state3";
  7. if(!QPixmapCache::find(QString::fromUtf8("icon_%1_state4").arg(button_type),&pixDisabled))
  8.             qWarning()<<"ButtonsPixmapItem::ButtonsPixmapItem no pixmap for icon_1_state4";
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After some time, when I'm deleting and creating 20 or 40 QGraphicsPixmapItems, QPixmapCache seems to remove image from the cache, next time I want to find item in cache, I got "false" from QPixmapCache::find and this message.
Is that possible that under some conditions QPixmapCache removes data? Can this be caused by deleted QGraphicsPixmapItems that used this pixmap, found earlier by QPixmapCache::find ?
I'm using Qt 4.8.1 on Linux

best regards
Marek