| # kio Library API Documentation
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# kfilterbase.h

    00001 /* This file is part of the KDE libraries
    00002    Copyright (C) 2000 David Faure <faure@kde.org>
    00003
    00004    This library is free software; you can redistribute it and/or
    00005    modify it under the terms of the GNU Library General Public
    00006    License version 2 as published by the Free Software Foundation.
    00007
    00008    This library is distributed in the hope that it will be useful,
    00009    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00010    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00011    Library General Public License for more details.
    00012
    00013    You should have received a copy of the GNU Library General Public License
    00014    along with this library; see the file COPYING.LIB.  If not, write to
    00015    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00016    Boston, MA 02111-1307, USA.
    00017 */
    00018
    00019 #ifndef __kfilterbase__h
    00020 #define __kfilterbase__h
    00021
    00022 #include <qobject.h>
    00023 #include <qstring.h>
    00024 class QIODevice;
    00025
    00031 class KFilterBase : public QObject // needs to inherit QObject for KLibFactory::create
    00032 {
    00033     Q_OBJECT
    00034 public:
    00035     KFilterBase();
    00036     virtual ~KFilterBase();
    00037
    00042     void setDevice( QIODevice * dev, bool autodelete = false );
    00043     // Note that this isn't in the constructor, because of KLibFactory::create,
    00044     // but it should be called before using the filterbase !
    00045
    00046     QIODevice * device() { return m_dev; }
    00047     virtual void init( int mode ) = 0;
    00048     virtual int mode() const = 0;
    00049     virtual void terminate() {}
    00050     virtual void reset() {}
    00051     virtual bool readHeader() = 0;
    00052     virtual bool writeHeader( const QCString & filename ) = 0;
    00053     virtual void setOutBuffer( char * data, uint maxlen ) = 0;
    00054     virtual void setInBuffer( const char * data, uint size ) = 0;
    00055     virtual bool inBufferEmpty() const { return inBufferAvailable() == 0; }
    00056     virtual int  inBufferAvailable() const = 0;
    00057     virtual bool outBufferFull() const { return outBufferAvailable() == 0; }
    00058     virtual int  outBufferAvailable() const = 0;
    00059
    00060     enum Result { OK, END, ERROR };
    00061     virtual Result uncompress() = 0;
    00062     virtual Result compress( bool finish ) = 0;
    00063
    00068     static KFilterBase * findFilterByFileName( const QString & fileName );
    00069
    00074     static KFilterBase * findFilterByMimeType( const QString & mimeType );
    00075
    00076 protected:
    00077     QIODevice * m_dev;
    00078     bool m_bAutoDel;
    00079 protected:
    00080     virtual void virtual_hook( int id, void* data );
    00081 private:
    00082     class KFilterBasePrivate;
    00083 };
    00084
    00085 #endif

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
Generated on Wed Jan 28 13:13:36 2004 by doxygen 1.3.4 written by Dimitri van Heesch, © 1997-2001