qmime.h Include File

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# qmime.h

This is the verbatim text of the qmime.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/qmime.h   3.1.2   edited Nov 7 16:55 $
    **
    ** Definition of mime classes
    **
    ** Created : 981204
    **
    ** Copyright (C) 1998-2000 Trolltech AS.  All rights reserved.
    **
    ** This file is part of the kernel module of the Qt GUI Toolkit.
    **
    ** This file may be distributed under the terms of the Q Public License
    ** as defined by Trolltech AS of Norway and appearing in the file
    ** LICENSE.QPL included in the packaging of this file.
    **
    ** This file may be distributed and/or modified under the terms of the
    ** GNU General Public License version 2 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file.
    **
    ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
    ** licenses may use this file in accordance with the Qt Commercial License
    ** Agreement provided with the Software.
    **
    ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
    ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    **   information about Qt Commercial License Agreements.
    ** See http://www.trolltech.com/qpl/ for QPL licensing information.
    ** See http://www.trolltech.com/gpl/ for GPL licensing information.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    **********************************************************************/

    #ifndef QMIME_H
    #define QMIME_H

    #ifndef QT_H
    #include "qwindowdefs.h"
    #include "qmap.h"
    #endif // QT_H

    #ifndef QT_NO_MIME

    class QImageDrag;
    class QTextDrag;

    class Q_EXPORT QMimeSource
    {
        friend class QClipboardData;

    public:
        QMimeSource();
        virtual ~QMimeSource();
        virtual const char* format( int n = 0 ) const = 0;
        virtual bool provides( const char* ) const;
        virtual QByteArray encodedData( const char* ) const = 0;
        int serialNumber() const;

    private:
        int ser_no;
        enum { NoCache, Text, Graphics } cacheType;
        union
        {
    	struct
    	{
    	    QString *str;
    	    QCString *subtype;
    	} txt;
    	struct
    	{
    	    QImage *img;
    	    QPixmap *pix;
    	} gfx;
        } cache;
        void clearCache();

        // friends for caching
        friend class QImageDrag;
        friend class QTextDrag;

    };

    inline int QMimeSource::serialNumber() const
    { return ser_no; }

    class QStringList;
    class QMimeSourceFactoryData;

    class Q_EXPORT QMimeSourceFactory {
    public:
        QMimeSourceFactory();
        virtual ~QMimeSourceFactory();

        static QMimeSourceFactory* defaultFactory();
        static void setDefaultFactory( QMimeSourceFactory* );
        static QMimeSourceFactory* takeDefaultFactory();
        static void addFactory( QMimeSourceFactory *f );
        static void removeFactory( QMimeSourceFactory *f );

        virtual const QMimeSource* data(const QString& abs_name) const;
        virtual QString makeAbsolute(const QString& abs_or_rel_name, const QString& context) const;
        const QMimeSource* data(const QString& abs_or_rel_name, const QString& context) const;

        virtual void setText( const QString& abs_name, const QString& text );
        virtual void setImage( const QString& abs_name, const QImage& im );
        virtual void setPixmap( const QString& abs_name, const QPixmap& pm );
        virtual void setData( const QString& abs_name, QMimeSource* data );
        virtual void setFilePath( const QStringList& );
        virtual QStringList filePath() const;
        void addFilePath( const QString& );
        virtual void setExtensionType( const QString& ext, const char* mimetype );

    private:
        QMimeSource *dataInternal(const QString& abs_name, const QMap<QString, QString> &extensions ) const;
        QMimeSourceFactoryData* d;
    };

    #ifdef Q_WS_WIN

    #ifndef QT_H
    #include "qptrlist.h" // down here for GCC 2.7.* compatibility
    #endif // QT_H

    /*
      Encapsulation of conversion between MIME and Windows CLIPFORMAT.
      Not need on X11, as the underlying protocol uses the MIME standard
      directly.
    */

    class Q_EXPORT QWindowsMime {
    public:
        QWindowsMime();
        virtual ~QWindowsMime();

        static void initialize();

        static QPtrList<QWindowsMime> all();
        static QWindowsMime* convertor( const char* mime, int cf );
        static const char* cfToMime(int cf);

        static int registerMimeType(const char *mime);

        virtual const char* convertorName()=0;
        virtual int countCf()=0;
        virtual int cf(int index)=0;
        virtual bool canConvert( const char* mime, int cf )=0;
        virtual const char* mimeFor(int cf)=0;
        virtual int cfFor(const char* )=0;
        virtual QByteArray convertToMime( QByteArray data, const char* mime, int cf )=0;
        virtual QByteArray convertFromMime( QByteArray data, const char* mime, int cf )=0;
    };

    #endif // Q_WS_WIN

    #endif // QT_NO_MIME

    #endif // QMIME_H