qt5base-lts/tests/manual/highdpi/kitchensink/dragwidget.h

// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0

#ifndef DRAGWIDGET_H
#define DRAGWIDGET_H

#include <QWidget>
#include <QBasicTimer>

QT_BEGIN_NAMESPACE
class QDragEnterEvent;
class QDropEvent;
QT_END_NAMESPACE

class DragWidget : public QWidget
{
public:
    DragWidget(QString text = QString(), QWidget *parent = nullptr);

protected:
    void dragEnterEvent(QDragEnterEvent *event) override;
    void dragLeaveEvent(QDragLeaveEvent *event) override;
    void dropEvent(QDropEvent *event) override;
    void mousePressEvent(QMouseEvent *event) override;
    void dragMoveEvent(QDragMoveEvent * event) override;
    void paintEvent(QPaintEvent *) override;
    void timerEvent(QTimerEvent *event) override;
    void showEvent(QShowEvent *event) override;
    void hideEvent(QHideEvent *event) override;

private:
    QPoint dragPos;
    QPoint dropPos;
    QBasicTimer dragTimer;
    QBasicTimer dropTimer;
    QWidget *otherWindow = nullptr;
};

#endif // DRAGWIDGET_H