Qt 从 QTableWidget 拖放到文件夹

Posted 2023-05-08

【中文标题】Qt 从 QTableWidget 拖放到文件夹

【英文标题】：Qt Drag&Drop from QTableWidget to folder

【发布时间】：2018-02-17 16:50:51

【问题描述】：

我有自定义 QTableWidget，我怎样才能从表索引拖放到文件夹？我有带有存档文件的 QList 集合。 此代码非常适合拖放到应用程序

void ArchiveQTableWidget::keyPressEvent(QKeyEvent *event)

    if (event->key() == Qt::Key_Return && currentRow() > -1)
        enterClicked(currentIndex());
    QTableWidget::keyPressEvent(event);


void ArchiveQTableWidget::dragEnterEvent(QDragEnterEvent *event)

    if (event->mimeData()->hasUrls()) 
        event->acceptProposedAction();
    


void ArchiveQTableWidget::dragMoveEvent(QDragMoveEvent *event)

    event->acceptProposedAction();


void ArchiveQTableWidget::dragLeaveEvent(QDragLeaveEvent *event)

    event->accept();


void ArchiveQTableWidget::dropEvent(QDropEvent *event)

    foreach (const QUrl &url, event->mimeData()->urls()) 
        QString fileName = url.toLocalFile();
        qDebug() << "Dropped file:" << fileName;
    


void ArchiveQTableWidget::startDrag(Qt::DropActions supportedActions)

    StreamQMimeData mimeData = new StreamQMimeData;
    connect(mimeData, SIGNAL(dataRequested(QString)),
            this, SLOT(createData(QString)), Qt::DirectConnection);
    QDrag *drag = new QDrag(this);
    drag->setMimeData(mimeData);
    drag->exec(Qt::CopyAction);

【参考方案1】：

您需要致电QMimeData::setUrls( QList<QUrl> )。