KoFilterManager.h

/* This file is part of the KDE project
   Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
                 2000, 2001 Werner Trobin <trobin@kde.org>
   Copyright (C) 2004 Nicolas Goutte <goutte@kde.org>
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.
 
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.
 
   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/
 
#ifndef __koffice_filter_manager_h__
#define __koffice_filter_manager_h__
 
#include <tqobject.h>
#include <tqmap.h>
#include <KoFilterChain.h>
#include <koffice_export.h>
class KoDocument;

class KOFFICECORE_EXPORT KoFilterManager : public TQObject
{
    TQ_OBJECT
  
public:
    enum Direction { Import = 1,  Export = 2 };

    KoFilterManager( KoDocument* document );
    KoFilterManager( const TQString& url, const TQCString& mimetypeHint = "",
                     KoFilterChain* const parentChain = 0 );
 
    virtual ~KoFilterManager();

    TQString import( const TQString& url, KoFilter::ConversionStatus& status );
    KoFilter::ConversionStatus exp0rt( const TQString& url, TQCString& mimeType );
 
 



    KOFFICECORE_EXPORT static TQStringList mimeFilter( const TQCString& mimetype, Direction direction,
                                                      const TQStringList& extraNativeMimeTypes = TQStringList() );

    static TQStringList mimeFilter();

    static bool filterAvailable( KoFilterEntry::Ptr entry );


    void setBatchMode ( const bool batch );

    bool getBatchMode ( void ) const;
 
signals:
    void sigProgress( int );
 
private:
    // === API for KoFilterChains === (internal)
    // The friend methods are private in KoFilterChain and
    // just forward calls to the methods here. Should be
    // pretty save.
    friend TQString KoFilterChain::filterManagerImportFile() const;
    TQString importFile() const { return m_importUrl; }
    friend TQString KoFilterChain::filterManagerExportFile() const;
    TQString exportFile() const { return m_exportUrl; }
    friend KoDocument* KoFilterChain::filterManagerKoDocument() const;
    KoDocument* document() const { return m_document; }
    friend int KoFilterChain::filterManagerDirection() const;
    int direction() const { return static_cast<int>( m_direction ); }
    friend KoFilterChain* const KoFilterChain::filterManagerParentChain() const;
    KoFilterChain* const parentChain() const { return m_parentChain; }
 
    // Private API
    KoFilterManager( const KoFilterManager& rhs );
    KoFilterManager &operator=( const KoFilterManager& rhs );
 
    void importErrorHelper( const TQString& mimeType, const bool suppressDialog = false );
 
    static const int s_area;
 
    KoDocument* m_document;
    KoFilterChain* const m_parentChain;
    TQString m_importUrl, m_exportUrl;
    TQCString m_importUrlMimetypeHint;  
    KOffice::Graph m_graph;
    Direction m_direction;

    static TQMap<TQString, bool> m_filterAvailable;
 
    class Private;
    Private *d;
};
 
#endif  // __koffice_filter_manager_h__