鼠标双击没反应 [复制链接]

各位大侠，请问如果我对QTextEdit重写eventFilter时，鼠标双击没反应，代码如下：
bool XX::eventFilter ( QObject *target, QEvent *event )
{
       if(target == ui.textEdit){
        if (event->type() == QEvent::MouseButtonPress
                || event->type() == QEvent::MouseButtonDblClick
                || event->type() == QEvent::MouseButtonRelease
                || event->type() == QEvent::ContextMenu) {
             ..............
                   }
          }
}
我也设置了ui.textEdit->setMouseTracking(true);
请问哪位大侠知道怎么解决？谢谢