qdrag.h

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00001 /****************************************************************************
00002 **
00003 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
00004 ** All rights reserved.
00005 ** Contact: Nokia Corporation (qt-info@nokia.com)
00006 **
00007 ** This file is part of the QtGui module of the Qt Toolkit.
00008 **
00009 ** $QT_BEGIN_LICENSE:LGPL$
00010 ** Commercial Usage
00011 ** Licensees holding valid Qt Commercial licenses may use this file in
00012 ** accordance with the Qt Commercial License Agreement provided with the
00013 ** Software or, alternatively, in accordance with the terms contained in
00014 ** a written agreement between you and Nokia.
00015 **
00016 ** GNU Lesser General Public License Usage
00017 ** Alternatively, this file may be used under the terms of the GNU Lesser
00018 ** General Public License version 2.1 as published by the Free Software
00019 ** Foundation and appearing in the file LICENSE.LGPL included in the
00020 ** packaging of this file.  Please review the following information to
00021 ** ensure the GNU Lesser General Public License version 2.1 requirements
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00023 **
00024 ** In addition, as a special exception, Nokia gives you certain additional
00025 ** rights.  These rights are described in the Nokia Qt LGPL Exception
00026 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this module.
00027 **
00028 ** GNU General Public License Usage
00029 ** Alternatively, this file may be used under the terms of the GNU
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00040 ****************************************************************************/
00041 
00042 #ifndef QDRAG_H
00043 #define QDRAG_H
00044 
00045 #include <QtCore/qobject.h>
00046 
00047 QT_BEGIN_HEADER
00048 
00049 QT_BEGIN_NAMESPACE
00050 
00051 QT_MODULE(Gui)
00052 
00053 #ifndef QT_NO_DRAGANDDROP
00054 class QMimeData;
00055 class QDragPrivate;
00056 class QWidget;
00057 class QPixmap;
00058 class QPoint;
00059 class QDragManager;
00060 
00061 class Q_GUI_EXPORT QDrag : public QObject
00062 {
00063     Q_OBJECT
00064     Q_DECLARE_PRIVATE(QDrag)
00065 public:
00066     explicit QDrag(QWidget *dragSource);
00067     ~QDrag();
00068 
00069     void setMimeData(QMimeData *data);
00070     QMimeData *mimeData() const;
00071 
00072     void setPixmap(const QPixmap &);
00073     QPixmap pixmap() const;
00074 
00075     void setHotSpot(const QPoint &hotspot);
00076     QPoint hotSpot() const;
00077 
00078     QWidget *source() const;
00079     QWidget *target() const;
00080 
00081     Qt::DropAction start(Qt::DropActions supportedActions = Qt::CopyAction);
00082     Qt::DropAction exec(Qt::DropActions supportedActions = Qt::MoveAction);
00083     Qt::DropAction exec(Qt::DropActions supportedActions, Qt::DropAction defaultAction);
00084 
00085     void setDragCursor(const QPixmap &cursor, Qt::DropAction action);
00086 
00087 Q_SIGNALS:
00088     void actionChanged(Qt::DropAction action);
00089     void targetChanged(QWidget *newTarget);
00090 
00091 private:
00092 #ifdef Q_WS_MAC
00093     friend class QWidgetPrivate;
00094 #endif
00095     friend class QDragManager;
00096     Q_DISABLE_COPY(QDrag)
00097 };
00098 
00099 #endif // QT_NO_DRAGANDDROP
00100 
00101 QT_END_NAMESPACE
00102 
00103 QT_END_HEADER
00104 
00105 #endif // QDRAG_H