最近筆者在專案開發過程中需要獲取QTableWidget的游標位置，琢磨了一段時間，拿出來和大家分享一下。

1.先說正確的姿勢：

connect(this, &QTableWidget::itemSelectionChanged, [=]()
{
    qDebug() << "row = " << currentRow();
    qDebug() << "column = " << currentColumn();
});

PS：如果setCellWidget(int row, int column, QWidget *widget)之後游標上下左右移動不正常（如setCellWidget(2, 3, new QPushButton))，可以試著將QPushButton的聚焦策略改為Qt::NoFocus；

2.錯誤的姿勢：

#if true
void TableWidget::keyPressEvent(QKeyEvent *event) 
{
    qDebug() << "row = " << currentRow();
    qDebug() << "column = " << currentColumn();
    QTableWidget::keyPressEvent(event);
}

void TableWidget::mouseReleaseEvent(QMouseEvent *event) 
{
    qDebug() << "row = " << currentRow();
    qDebug() << "column = " << currentColumn();
    QTableWidget::mouseReleaseEvent(event);
}
#endif

#if true
void TableWidget::keyPressEvent(QKeyEvent *event)
{
    qDebug() << "row = " << moveCursor(QAbstractItemView::MoveRight, Qt::KeyboardModifierMask).row();
    qDebug() << "column = " << moveCursor(QAbstractItemView::MoveRight, Qt::KeyboardModifierMask).column();
    QTableWidget::keyPressEvent(event);
}

void TableWidget::mouseReleaseEvent(QMouseEvent *event)
{
    qDebug() << "row = " << moveCursor(QAbstractItemView::MoveRight, Qt::KeyboardModifierMask).row();
    qDebug() << "column = " << moveCursor(QAbstractItemView::MoveRight, Qt::KeyboardModifierMask).column();
    QTableWidget::mouseReleaseEvent(event);
}
#endif
 

PS：單元格座標到邊界位置會出現異常，引以為戒；