- ProjectItem(QTreeWidget * parent, DocClipBase *clip, QSize pixmapSize);
- ProjectItem(QTreeWidgetItem * parent, DocClipBase *clip, QSize pixmapSize);
+ ProjectItem(QTreeWidget * parent, DocClipBase *clip, const QSize &pixmapSize);
+ ProjectItem(QTreeWidgetItem * parent, DocClipBase *clip, const QSize &pixmapSize);