adateservice.h

/****************************************************************************
** $Id: adateservice.h,v 1.4 2008/05/24 13:12:33 app Exp $
**
** Header file of Ananas project
**
** Copyright (C) 2008. Andrey Paskal
**
** This file is part of the Library of the Ananas
** automation accounting system.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
**********************************************************************/
 
#ifndef ADATESERVICE_H
#define ADATESERVICE_H
 
#include        <qdatetime.h> 
#include        "aextension.h"
 
class ANANAS_EXPORT aDateService : public AExtension
{
        Q_OBJECT
public:                 
        aDateService();
        aDateService( int y, int m, int d );
        aDateService(const aDateService&);
        aDateService(const QDate&);
        ~aDateService();
protected:
        QDate *dateInstance;
public slots:
        
 
        bool IsNull () const;
        bool IsValid () const;
        bool IsValid ( int y, int m, int d ) ;
        int Year ()  const ;
        int Month () const ;
        int Day () const ;
        int DayOfWeek () const ;
        int DayOfYear () const ;
        int DaysInMonth () const ;
        int DaysInYear () const ;
        int WeekNumber () const ;
        QString         ToString ( const QString & format = QString::null)  const;
        QDate           ToDate ()  const;
        bool            SetYMD ( int y, int m, int d ) ;
        aDateService*   AddDays ( int ndays ) const ;
        aDateService*   AddMonths ( int nmonths ) const; 
        aDateService*   AddYears ( int nyears ) const; 
        int             DaysTo ( const aDateService& target) const ; 
        int             DaysTo ( const QDate& target ) const ; 
        
};
 
#endif// ADATESERVICE_H