libkholidays

kholidays.cpp

00001 /*
00002     This file is part of KOrganizer.
00003     Copyright (c) 2001 Cornelius Schumacher <schumacher@kde.org>
00004     Copyright (c) 2004 Allen Winter <winter@kde.org>
00005 
00006     This program is free software; you can redistribute it and/or modify
00007     it under the terms of the GNU General Public License as published by
00008     the Free Software Foundation; either version 2 of the License, or
00009     (at your option) any later version.
00010 
00011     This program is distributed in the hope that it will be useful,
00012     but WITHOUT ANY WARRANTY; without even the implied warranty of
00013     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00014     GNU General Public License for more details.
00015 
00016     You should have received a copy of the GNU General Public License
00017     along with this program; if not, write to the Free Software
00018     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00019 */
00020 
00021 #include <qfile.h>
00022 #include <kapplication.h>
00023 #include <kstandarddirs.h>
00024 #include <kdebug.h>
00025 
00026 #include "kholidays.h"
00027 #include "kholidays_version.h"
00028 
00029 extern "C" {
00030   char *parse_holidays( const char *, int year, short force );
00032   struct holiday {
00033     char            *string;        /* name of holiday, 0=not a holiday */
00034     int             color;          /* color code, see scanholiday.lex */
00035     unsigned short  dup;            /* reference count */
00036     holiday         *next;          /* single-linked list if more than one holida appears on a given date */
00037   };
00038   extern struct holiday holidays[366];
00039 }
00040 
00041 QStringList KHolidays::locations()
00042 {
00043   QStringList files =
00044     KGlobal::dirs()->findAllResources( "data", "libkholidays/holiday_*",
00045                                        false, true );
00046   QStringList locs;
00047 
00048   QStringList::ConstIterator it;
00049   for ( it = files.begin(); it != files.end(); ++it )
00050     locs.append( (*it).mid((*it).findRev('_') + 1) );
00051 
00052   return locs;
00053 }
00054 
00055 KHolidays::KHolidays( const QString& location )
00056   : mLocation( location )
00057 {
00058   mHolidayFile = locate( "data", "libkholidays/holiday_" + location );
00059 
00060   mYearLast = 0;
00061 }
00062 
00063 KHolidays::~KHolidays()
00064 {
00065 }
00066 
00067 QString KHolidays::location() const
00068 {
00069   return mLocation;
00070 }
00071 
00072 QString KHolidays::shortText( const QDate &date )
00073 {
00074   QValueList<KHoliday> lst = getHolidays( date );
00075   if ( !lst.isEmpty() ) 
00076     return lst.first().text;
00077   else return QString::null;
00078 }
00079 
00080 bool KHolidays::parseFile( const QDate &date )
00081 {
00082 // kdDebug()<<"KHolidays::parseFile( date=" << date << ")"<<endl;
00083   int lastYear = 0; //current year less 1900
00084 
00085   if ( mHolidayFile.isNull() || mHolidayFile.isEmpty() || date.isNull() || !date.isValid() )
00086     return false;
00087 
00088   if ( ( date.year() != mYearLast ) || ( mYearLast == 0 ) ) {
00089 // kdDebug()<<kdBacktrace();
00090     mYearLast = date.year();
00091     lastYear = date.year() - 1900; // silly parse_year takes 2 digit year...
00092     parse_holidays( QFile::encodeName( mHolidayFile ), lastYear, 1 );
00093   }
00094 
00095   return true;
00096 }
00097 
00098 QString KHolidays::getHoliday( const QDate &date )
00099 {
00100   QValueList<KHoliday> lst = getHolidays( date );
00101   if ( !lst.isEmpty() ) 
00102     return lst.first().text;
00103   else return QString::null;
00104 }
00105 
00106 QValueList<KHoliday> KHolidays::getHolidays( const QDate &date )
00107 {
00108   QValueList<KHoliday> list;
00109   if ( !parseFile( date ) ) return list;
00110   struct holiday *hd = &holidays[date.dayOfYear()-1];
00111   while ( hd ) {
00112     if ( hd->string ) {
00113       KHoliday holiday;
00114       holiday.text = QString::fromUtf8( hd->string );
00115       holiday.shortText = holiday.text;
00116       holiday.Category = (hd->color == 2/*red*/) || (hd->color == 9/*weekend*/) ? HOLIDAY : WORKDAY;
00117       list.append( holiday );
00118     }
00119     hd = hd->next;
00120   }
00121   return list;
00122 }
00123 
00124 int KHolidays::category( const QDate &date )
00125 {
00126   if ( !parseFile(date) ) return WORKDAY;
00127 
00128   return (holidays[date.dayOfYear()-1].color == 2/*red*/) ||
00129          (holidays[date.dayOfYear()-1].color == 9/*weekend*/) ? HOLIDAY : WORKDAY;
00130 }
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