qt6windows7/src/gui/kernel/qplatformdrag.h

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2023-10-30 06:33:08 +08:00
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPLATFORMDRAG_H
#define QPLATFORMDRAG_H
//
// W A R N I N G
// -------------
//
// This file is part of the QPA API and is not meant to be used
// in applications. Usage of this API may make your code
// source and binary incompatible with future versions of Qt.
//
#include <QtGui/qtguiglobal.h>
#include <QtGui/QPixmap>
QT_REQUIRE_CONFIG(draganddrop);
QT_BEGIN_NAMESPACE
class QMimeData;
class QMouseEvent;
class QDrag;
class QObject;
class QEvent;
class QPlatformDragPrivate;
class Q_GUI_EXPORT QPlatformDropQtResponse
{
public:
QPlatformDropQtResponse(bool accepted, Qt::DropAction acceptedAction);
bool isAccepted() const;
Qt::DropAction acceptedAction() const;
private:
bool m_accepted;
Qt::DropAction m_accepted_action;
};
class Q_GUI_EXPORT QPlatformDragQtResponse : public QPlatformDropQtResponse
{
public:
QPlatformDragQtResponse(bool accepted, Qt::DropAction acceptedAction, QRect answerRect);
QRect answerRect() const;
private:
QRect m_answer_rect;
};
class Q_GUI_EXPORT QPlatformDrag
{
Q_DECLARE_PRIVATE(QPlatformDrag)
public:
Q_DISABLE_COPY_MOVE(QPlatformDrag)
QPlatformDrag();
virtual ~QPlatformDrag();
QDrag *currentDrag() const;
virtual Qt::DropAction drag(QDrag *m_drag) = 0;
virtual void cancelDrag();
void updateAction(Qt::DropAction action);
virtual Qt::DropAction defaultAction(Qt::DropActions possibleActions, Qt::KeyboardModifiers modifiers) const;
static QPixmap defaultPixmap();
virtual bool ownsDragObject() const;
private:
QPlatformDragPrivate *d_ptr;
};
QT_END_NAMESPACE
#endif