[提问]QStyledItemDelegate重写paint显示GIF图片画上去后但是没有动画效果，鼠标再根节点上移动才有效果 [复制链接]

代码如下：
voidtreeViewItemDelegate::paint(        QPainter *painter,        const QStyleOptionViewItem &option,        const QModelIndex &index)const
{
             if(0 ==index.column())        
             {          
                painter->drawPixmap(20,10,16,16, m_pLable->movie()->currentPixmap());        
            }      
          else      
           {            
            QStyledItemDelegate::paint(painter,option,index);      
           }
}
求大佬解答下
问题是：
再节点上已经显示但是没有动画效果，鼠标再节点上移动才有动画效果