droparea.h

来自「QT 开发环境里面一个很重要的文件」· C头文件 代码 · 共 57 行

/****************************************************************************
**
** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at [e-mail].
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#ifndef DROPAREA_H
#define DROPAREA_H

#include <QLabel>

class QMimeData;

class DropArea : public QLabel
{
    Q_OBJECT

public:
    DropArea(QWidget *parent = 0);

    QPixmap extractPixmap(const QByteArray &data, const QString &format);

public slots:
    void clear();

signals:
    void changed(const QMimeData *mimeData = 0);

protected:
    void dragEnterEvent(QDragEnterEvent *event);
    void dragMoveEvent(QDragMoveEvent *event);
    void dragLeaveEvent(QDragLeaveEvent *event);
    void dropEvent(QDropEvent *event);

private:
    QLabel *label;
};

#endif