libkholidays

lunarphase.h

00001 /*
00002     This file is part of libkholidays.
00003     Copyright (c) 2004 Allen Winter <winter@kde.org>
00004 
00005     This library is free software; you can redistribute it and/or
00006     modify it under the terms of the GNU General Public License as
00007     published by the Free Software Foundation; either version 2 of the
00008     License, or (at your option) any later version.
00009 
00010     This library is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013     General Public License for more details.
00014 
00015     You should have received a copy of the GNU General Public License
00016     along with this program; if not, write to the Free Software
00017     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
00018 
00019     In addition, as a special exception, the copyright holders give
00020     permission to link the code of this program with any edition of
00021     the Qt library by Trolltech AS, Norway (or with modified versions
00022     of Qt that use the same license as Qt), and distribute linked
00023     combinations including the two.  You must obey the GNU General
00024     Public License in all respects for all of the code used other than
00025     Qt.  If you modify this file, you may extend this exception to
00026     your version of the file, but you are not obligated to do so.  If
00027     you do not wish to do so, delete this exception statement from
00028     your version.
00029 */
00030 
00031 #ifndef KHOLIDAYS_LUNARPHASE_H
00032 #define KHOLIDAYS_LUNARPHASE_H
00033 
00060 #include <qstring.h>
00061 #include <qdatetime.h>
00062 
00063 #include <time.h>
00064 
00065 class LunarPhase
00066 {
00067   public:
00068     enum Phase { New,  FirstQ, LastQ, Full, None };
00069     enum Hemisphere { Northern,  Southern };
00070 
00071     LunarPhase( Hemisphere hemisphere = Northern );
00072     ~LunarPhase();
00073 
00081     Phase phase( const QDate &date ) const;
00082 
00090     QString phaseStr( const QDate &date ) const;
00091 
00097     void setHemisphere( Hemisphere hemisphere = Northern );
00098 
00102     Hemisphere hemisphere() const;
00103 
00107     QString hemisphereStr() const;
00108 
00112     static QString hemisphereName( Hemisphere hemisphere );
00113 
00119     static QString phaseName( Phase phase );
00120 
00121 private:
00129     double percentFull( uint t ) const;
00137     double degreesToRadians( double degree ) const;
00143     void adj360( double *degree ) const;
00144 
00145     Hemisphere mHemisphere;
00146 };
00147 
00148 #endif
00149 
00150 
KDE Home | KDE Accessibility Home | Description of Access Keys