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/*
    This file is part of the KOrganizer interfaces.

    Copyright (c) 2004 Reinhold Kainhofer <reinhold@kainhofer.com>

    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 KORG_INCIDENCECHANGERBASE_H
#define KORG_INCIDENCECHANGERBASE_H

#include <libkcal/scheduler.h>
#include <tqobject.h>

class QWidget;
namespace KCal {
class Calendar;
class Incidence;
}
using namespace KCal;

namespace KOrg {

class IncidenceChangerBase : public QObject
{
Q_OBJECT
public:
  IncidenceChangerBase( Calendar*cal, TQObject *parent = 0 ) :
        TQObject( parent ), mCalendar( cal ) {}
  virtual ~IncidenceChangerBase() {}

  virtual bool sendGroupwareMessage( Incidence *incidence,
          KCal::Scheduler::Method method, bool deleting = false ) = 0;

  virtual bool beginChange( Incidence * incidence ) = 0;
  virtual bool endChange( Incidence *incidence ) = 0;

  virtual bool addIncidence( Incidence *incidence, TQWidget *parent = 0 ) = 0;
  virtual bool changeIncidence( Incidence *newinc, Incidence *oldinc,
                                int action = -1 ) = 0;
  virtual bool deleteIncidence( Incidence *incidence ) = 0;
  virtual bool cutIncidence( Incidence *incidence ) = 0;

/*
  static bool incidencesEqual( Incidence *inc1, Incidence *inc2 );
  static bool assignIncidence( Incidence *inc1, Incidence *inc2 );
*/
signals:
  void incidenceAdded( Incidence * );
  void incidenceChanged( Incidence *oldInc, Incidence *newInc, int );
  void incidenceChanged( Incidence *oldInc, Incidence *newInc );
  void incidenceToBeDeleted( Incidence * );
  void incidenceDeleted( Incidence * );

  void schedule( Scheduler::Method method, Incidence *incidence );
protected:
  Calendar *mCalendar;
};




}

#endif