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/*
headerstrategy.h
This file is part of KMail, the KDE mail client.
Copyright (c) 2003 Marc Mutz <mutz@kde.org>
KMail is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License, version 2, as
published by the Free Software Foundation.
KMail 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
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the TQt library by Trolltech AS, Norway (or with modified versions
of TQt that use the same license as TQt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
TQt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#ifndef __KMAIL_HEADERSTRATEGY_H__
#define __KMAIL_HEADERSTRATEGY_H__
class TQString;
class TQStringList;
namespace KMail {
class HeaderStrategy {
protected:
HeaderStrategy();
virtual ~HeaderStrategy();
public:
//
// Factory methods:
//
enum Type { All, Rich, Standard, Brief, Custom };
static const HeaderStrategy * create( Type type );
static const HeaderStrategy * create( const TQString & type );
static const HeaderStrategy * all();
static const HeaderStrategy * rich();
static const HeaderStrategy * standard();
static const HeaderStrategy * brief();
static const HeaderStrategy * custom();
//
// Methods for handling the strategies:
//
virtual const char * name() const = 0;
virtual const HeaderStrategy * next() const = 0;
virtual const HeaderStrategy * prev() const = 0;
//
// HeaderStrategy interface:
//
enum DefaultPolicy { Display, Hide };
virtual TQStringList headersToDisplay() const;
virtual TQStringList headersToHide() const;
virtual DefaultPolicy defaultPolicy() const = 0;
virtual bool showHeader( const TQString & header ) const;
};
} // namespace KMail
#endif // __KMAIL_HEADERSTRATEGY_H__
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