duration.h

/*
    This file is part of libkcal.
 
    Copyright (c) 2001-2003 Cornelius Schumacher <schumacher@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 KCAL_DURATION_H
#define KCAL_DURATION_H
 
#include <tqdatetime.h>
 
#include "libkcal_export.h"
 
namespace KCal {
 
class LIBKCAL_EXPORT Duration
{
  public:
    enum Type {
      Seconds,   
      Days       
    };
 
    Duration();
 
    Duration( const TQDateTime &start, const TQDateTime &end );
 
    Duration( const TQDateTime &start, const TQDateTime &end, Type type );
 
    Duration( int duration, Type type = Seconds ); //krazy:exclude=explicit
 
    Duration( const Duration &duration );
 
    Duration &operator=( const Duration &duration );
 
    operator bool() const;
 
    bool operator!() const  { return !operator bool(); }
 
    bool operator<( const Duration &other ) const;
 
    bool operator<=( const Duration &other ) const
    { return !other.operator<( *this ); }
 
 
    bool operator>( const Duration &other ) const
    { return other.operator<( *this ); }
 
    bool operator>=( const Duration &other ) const
    { return !operator<( other ); }
 
    bool operator==( const Duration &other ) const;
 
    bool operator!=( const Duration &other ) const
    { return !operator==( other ); }
 
    Duration &operator+=( const Duration &other );
 
    Duration operator+( const Duration &other ) const
    { return Duration( *this ) += other; }
 
    Duration operator-() const;
 
    Duration &operator-=( const Duration &other );
 
    Duration operator-( const Duration &other ) const
    { return Duration( *this ) += other; }
 
    Duration &operator*=( int value );
 
    Duration operator*( int value ) const
    { return Duration( *this ) *= value; }
 
    Duration &operator/=( int value );
 
    Duration operator/( int value ) const
    { return Duration( *this ) /= value; }
 
    TQDateTime end( const TQDateTime &start ) const;
 
    Type type() const;
 
    bool isDaily() const;
 
    int asSeconds() const;
 
    int asDays() const;
 
    int value() const;
 
  private:
    int seconds() const { return mDaily ? mDuration * 86400 : mDuration; }
    int mDuration;
    bool mDaily;
 
    class Private;
    Private *d;
};
 
}
 
#endif