问未调用QTreeWidget MouseMove事件

EN

#include <QTreeWidget>
#include <QEvent>

class CustomTreeWidget: public QTreeWidget
{
    Q_OBJECT
public:
    CustomTreeWidget(QWidget *parent = nullptr);

protected:
    bool eventFilter(QObject *target, QEvent *event) override;

private:
    Q_SLOT void OnItemEntered(QTreeWidgetItem *item, int column);
};

CustomTreeWidget::CustomTreeWidget(QWidget *parent) :
    QTreeWidget(parent)
{
    this->installEventFilter(this);
    this->setMouseTracking(true);
    connect(this, &ImageFilterTreeWidget::itemEntered, this, &ImageFilterTreeWidget::OnItemEntered);
}

bool CustomTreeWidget::eventFilter(QObject *target, QEvent *event)
{
    if(event->type() == QEvent::MouseMove)
    {
       // This piece of code is never called            
    }

    return false;
}

void CustomTreeWidget::OnItemEntered(QTreeWidgetItem *item, int column)
{
    //setting some variables based on *item
}