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280 lines
8.0 KiB
280 lines
8.0 KiB
/****************************************************************************
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**
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** Definition of QDragObject
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QDRAGOBJECT_H
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#define QDRAGOBJECT_H
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class QWidget;
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class QTextDragPrivate;
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class QDragObjectData;
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class QStoredDragData;
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class QImageDragData;
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#ifndef QT_H
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#include "qobject.h"
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#include "qimage.h"
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#include "qstrlist.h"
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#include "qcolor.h"
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#endif // QT_H
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#ifndef QT_NO_MIME
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class Q_EXPORT QDragObject: public QObject, public QMimeSource {
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Q_OBJECT
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public:
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QDragObject( QWidget * dragSource = 0, const char * name = 0 );
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virtual ~QDragObject();
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#ifndef QT_NO_DRAGANDDROP
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bool drag();
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bool dragMove();
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void dragCopy();
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void dragLink();
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virtual void setPixmap(QPixmap);
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virtual void setPixmap(QPixmap, const QPoint& hotspot);
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QPixmap pixmap() const;
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QPoint pixmapHotSpot() const;
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#endif
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QWidget * source();
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static QWidget * target();
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static void setTarget(QWidget*);
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#ifndef QT_NO_DRAGANDDROP
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enum DragMode { DragDefault, DragCopy, DragMove, DragLink, DragCopyOrMove };
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protected:
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virtual bool drag(DragMode);
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#endif
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private:
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QDragObjectData * d;
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QDragObject( const QDragObject & );
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QDragObject &operator=( const QDragObject & );
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#endif
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};
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class Q_EXPORT QStoredDrag: public QDragObject {
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Q_OBJECT
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QStoredDragData * d;
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public:
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QStoredDrag( const char * mimeType,
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QWidget * dragSource = 0, const char * name = 0 );
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~QStoredDrag();
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virtual void setEncodedData( const QByteArray & );
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const char * format(int i) const;
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virtual QByteArray encodedData(const char*) const;
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private:
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QStoredDrag( const QStoredDrag & );
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QStoredDrag &operator=( const QStoredDrag & );
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#endif
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};
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class Q_EXPORT QTextDrag: public QDragObject {
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Q_OBJECT
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QTextDragPrivate* d;
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public:
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QTextDrag( const QString &,
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QWidget * dragSource = 0, const char * name = 0 );
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QTextDrag( QWidget * dragSource = 0, const char * name = 0 );
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~QTextDrag();
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virtual void setText( const QString &);
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virtual void setSubtype( const QCString &);
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const char * format(int i) const;
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virtual QByteArray encodedData(const char*) const;
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static bool canDecode( const QMimeSource* e );
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static bool decode( const QMimeSource* e, QString& s );
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static bool decode( const QMimeSource* e, QString& s, QCString& subtype );
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private:
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QTextDrag( const QTextDrag & );
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QTextDrag &operator=( const QTextDrag & );
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#endif
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};
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class Q_EXPORT QImageDrag: public QDragObject {
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Q_OBJECT
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QImage img;
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QStrList ofmts;
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QImageDragData* d;
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public:
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QImageDrag( QImage image, QWidget * dragSource = 0, const char * name = 0 );
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QImageDrag( QWidget * dragSource = 0, const char * name = 0 );
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~QImageDrag();
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virtual void setImage( QImage image );
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const char * format(int i) const;
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virtual QByteArray encodedData(const char*) const;
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static bool canDecode( const QMimeSource* e );
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static bool decode( const QMimeSource* e, QImage& i );
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static bool decode( const QMimeSource* e, QPixmap& i );
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private:
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QImageDrag( const QImageDrag & );
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QImageDrag &operator=( const QImageDrag & );
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#endif
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};
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class Q_EXPORT QUriDrag: public QStoredDrag {
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Q_OBJECT
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public:
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QUriDrag( QStrList uris, QWidget * dragSource = 0, const char * name = 0 );
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QUriDrag( QWidget * dragSource = 0, const char * name = 0 );
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~QUriDrag();
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void setFilenames( const QStringList & fnames ) { setFileNames( fnames ); }
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void setFileNames( const QStringList & fnames );
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void setUnicodeUris( const QStringList & uuris );
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virtual void setUris( QStrList uris );
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static QString uriToLocalFile(const char*);
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static QCString localFileToUri(const QString&);
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static QString uriToUnicodeUri(const char*);
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static QCString unicodeUriToUri(const QString&);
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static bool canDecode( const QMimeSource* e );
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static bool decode( const QMimeSource* e, QStrList& i );
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static bool decodeToUnicodeUris( const QMimeSource* e, QStringList& i );
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static bool decodeLocalFiles( const QMimeSource* e, QStringList& i );
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private:
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QUriDrag( const QUriDrag & );
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QUriDrag &operator=( const QUriDrag & );
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#endif
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};
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class Q_EXPORT QColorDrag : public QStoredDrag
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{
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Q_OBJECT
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QColor color;
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public:
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QColorDrag( const QColor &col, QWidget *dragsource = 0, const char *name = 0 );
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QColorDrag( QWidget * dragSource = 0, const char * name = 0 );
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void setColor( const QColor &col );
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static bool canDecode( QMimeSource * );
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static bool decode( QMimeSource *, QColor &col );
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private:
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QColorDrag( const QColorDrag & );
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QColorDrag &operator=( const QColorDrag & );
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#endif
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};
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#ifndef QT_NO_COMPAT
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typedef QUriDrag QUrlDrag;
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#endif
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#ifndef QT_NO_DRAGANDDROP
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// QDragManager is not part of the public API. It is defined in a
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// header file simply so different .cpp files can implement different
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// member functions.
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//
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class Q_EXPORT QDragManager: public QObject {
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Q_OBJECT
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private:
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QDragManager();
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~QDragManager();
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// only friend classes can use QDragManager.
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friend class QDragObject;
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friend class QDragMoveEvent;
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friend class QDropEvent;
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friend class QApplication;
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bool eventFilter( QObject *, QEvent * );
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void timerEvent( QTimerEvent* );
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bool drag( QDragObject *, QDragObject::DragMode );
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void cancel( bool deleteSource = TRUE );
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void move( const QPoint & );
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void drop();
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void updatePixmap();
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void updatePixmap( const QPoint& cursorPos );
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private:
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QDragObject * object;
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bool updateMode( ButtonState newstate );
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void updateCursor();
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#if defined(Q_WS_X11)
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void createCursors();
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#endif
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QWidget * dragSource;
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QWidget * dropWidget;
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bool beingCancelled;
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bool restoreCursor;
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bool willDrop;
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QPixmap *pm_cursor;
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int n_cursor;
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#if defined(Q_DISABLE_COPY) // Disabled copy constructor and operator=
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QDragManager( const QDragManager & );
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QDragManager &operator=( const QDragManager & );
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#endif
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};
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#endif
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#endif // QT_NO_MIME
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#endif // QDRAGOBJECT_H
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