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/" + generateFileName( "*" ),
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 QString KHolidays::fileForLocation( const QString &location )
00056 {
00057   return locate( "data", "libkholidays/" + generateFileName( location ) );
00058 }
00059 
00060 QString KHolidays::userPath( bool create )
00061 {
00062   return KGlobal::dirs()->saveLocation( "data", "libkholidays/", create );
00063 }
00064 
00065 QString KHolidays::generateFileName( const QString &location )
00066 {
00067   return "holiday_" + location;
00068 }
00069 
00070 
00071 
00072 
00073 KHolidays::KHolidays( const QString& location )
00074   : mLocation( location )
00075 {
00076   mHolidayFile = fileForLocation( location );
00077 
00078   mYearLast = 0;
00079 }
00080 
00081 KHolidays::~KHolidays()
00082 {
00083 }
00084 
00085 QString KHolidays::location() const
00086 {
00087   return mLocation;
00088 }
00089 
00090 QString KHolidays::shortText( const QDate &date )
00091 {
00092   QValueList<KHoliday> lst = getHolidays( date );
00093   if ( !lst.isEmpty() ) 
00094     return lst.first().text;
00095   else return QString::null;
00096 }
00097 
00098 bool KHolidays::parseFile( const QDate &date )
00099 {
00100 // kdDebug()<<"KHolidays::parseFile( date=" << date << ")"<<endl;
00101   int lastYear = 0; //current year less 1900
00102 
00103   if ( mHolidayFile.isNull() || mHolidayFile.isEmpty() || date.isNull() || !date.isValid() )
00104     return false;
00105 
00106   if ( ( date.year() != mYearLast ) || ( mYearLast == 0 ) ) {
00107 // kdDebug()<<kdBacktrace();
00108     mYearLast = date.year();
00109     lastYear = date.year() - 1900; // silly parse_year takes 2 digit year...
00110     parse_holidays( QFile::encodeName( mHolidayFile ), lastYear, 1 );
00111   }
00112 
00113   return true;
00114 }
00115 
00116 QString KHolidays::getHoliday( const QDate &date )
00117 {
00118   QValueList<KHoliday> lst = getHolidays( date );
00119   if ( !lst.isEmpty() ) 
00120     return lst.first().text;
00121   else return QString::null;
00122 }
00123 
00124 QValueList<KHoliday> KHolidays::getHolidays( const QDate &date )
00125 {
00126   QValueList<KHoliday> list;
00127   if ( !parseFile( date ) ) return list;
00128   struct holiday *hd = &holidays[date.dayOfYear()-1];
00129   while ( hd ) {
00130     if ( hd->string ) {
00131       KHoliday holiday;
00132       holiday.text = QString::fromUtf8( hd->string );
00133       holiday.shortText = holiday.text;
00134       holiday.Category = (hd->color == 2/*red*/) || (hd->color == 9/*weekend*/) ? HOLIDAY : WORKDAY;
00135       list.append( holiday );
00136     }
00137     hd = hd->next;
00138   }
00139   return list;
00140 }
00141 
00142 int KHolidays::category( const QDate &date )
00143 {
00144   if ( !parseFile(date) ) return WORKDAY;
00145 
00146   return (holidays[date.dayOfYear()-1].color == 2/*red*/) ||
00147          (holidays[date.dayOfYear()-1].color == 9/*weekend*/) ? HOLIDAY : WORKDAY;
00148 }
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