korganizer Library API Documentation

datenavigator.cpp

00001 /*
00002     This file is part of KOrganizer.
00003     Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
00004 
00005     This program is free software; you can redistribute it and/or modify
00006     it under the terms of the GNU General Public License as published by
00007     the Free Software Foundation; either version 2 of the License, or
00008     (at your option) any later version.
00009 
00010     This program 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
00013     GNU 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., 675 Mass Ave, Cambridge, MA 02139, USA.
00018 
00019     As a special exception, permission is given to link this program
00020     with any edition of Qt, and distribute the resulting executable,
00021     without including the source code for Qt in the source distribution.
00022 */
00023 
00024 #include "datenavigator.h"
00025 
00026 #include <calendarsystem/kcalendarsystem.h>
00027 
00028 #include "kocore.h"
00029 
00030 #include <kdebug.h>
00031 
00032 using namespace KCal;
00033 
00034 DateNavigator::DateNavigator( QObject *parent, const char *name )
00035   : QObject( parent, name )
00036 {
00037   mSelectedDates.append( QDate::currentDate() );
00038 }
00039 
00040 DateNavigator::~DateNavigator()
00041 {
00042 }
00043 
00044 DateList DateNavigator::selectedDates()
00045 {
00046   return mSelectedDates;
00047 }
00048 
00049 int DateNavigator::datesCount() const
00050 {
00051   return mSelectedDates.count();
00052 }
00053 
00054 void DateNavigator::selectDates( const DateList& dateList )
00055 {
00056   if (dateList.count() > 0) {
00057     mSelectedDates = dateList;
00058     
00059     emitSelected();
00060   }
00061 }
00062 
00063 void DateNavigator::selectDate( const QDate &date )
00064 {
00065   QDate d = date;
00066 
00067   if ( !d.isValid() ) {
00068     kdDebug() << "DateNavigator::selectDates(QDate): an invalid date was passed as a parameter!" << endl;
00069     d = QDate::currentDate();
00070   }
00071 
00072   mSelectedDates.clear();
00073   mSelectedDates.append( d );
00074 
00075   emitSelected();
00076 }
00077 
00078 void DateNavigator::selectDates( int count )
00079 {
00080   selectDates( mSelectedDates.first(), count );
00081 }
00082 
00083 void DateNavigator::selectDates( const QDate &d, int count )
00084 {
00085   DateList dates;
00086 
00087   int i;
00088   for( i = 0; i < count; ++i ) {
00089     dates.append( d.addDays( i ) );
00090   }
00091   
00092   mSelectedDates = dates;
00093   
00094   emitSelected();
00095 }
00096 
00097 void DateNavigator::selectWeekByDay( int weekDay, const QDate &d )
00098 {
00099   int dateCount = mSelectedDates.count();
00100   bool weekStart = ( weekDay == KGlobal::locale()->weekStartDay() );
00101   if ( weekDay == 1 && dateCount == 5 ) selectWorkWeek( d );
00102   else if ( weekStart && dateCount == 7 ) selectWeek( d );
00103   else selectDates( d, dateCount );
00104 }
00105 
00106 void DateNavigator::selectWeek()
00107 {
00108   selectWeek( mSelectedDates.first() );
00109 }
00110 
00111 void DateNavigator::selectWeek( const QDate &d )
00112 {
00113   int dayOfWeek = KOCore::self()->calendarSystem()->dayOfTheWeek( d );
00114 
00115   int weekStart = KGlobal::locale()->weekStartDay();
00116 
00117   QDate firstDate = d.addDays( weekStart - dayOfWeek );
00118 
00119   if ( weekStart != 1 && dayOfWeek < weekStart ) {
00120     firstDate = firstDate.addDays( -7 );
00121   }
00122 
00123   selectDates( firstDate, 7 );
00124 }
00125 
00126 void DateNavigator::selectWorkWeek()
00127 {
00128   selectWorkWeek( mSelectedDates.first() );
00129 }
00130 
00131 void DateNavigator::selectWorkWeek( const QDate &d )
00132 {
00133   int dayOfWeek = KOCore::self()->calendarSystem()->dayOfTheWeek( d );
00134 
00135   QDate firstDate = d.addDays( 1 - dayOfWeek );
00136 
00137   int weekStart = KGlobal::locale()->weekStartDay();
00138   if ( weekStart != 1 && dayOfWeek >= weekStart ) {
00139     firstDate = firstDate.addDays( 7 );
00140   }
00141 
00142   selectDates( firstDate, 5 );
00143 }
00144 
00145 void DateNavigator::selectToday()
00146 {
00147   QDate d = QDate::currentDate();
00148 
00149   int dateCount = mSelectedDates.count();
00150 
00151   if ( dateCount == 5 ) selectWorkWeek( d );
00152   else if ( dateCount == 7 ) selectWeek( d );
00153   else selectDates( d, dateCount );
00154 }
00155 
00156 void DateNavigator::selectPreviousYear()
00157 {
00158   QDate firstSelected = mSelectedDates.first();
00159   int weekDay = firstSelected.dayOfWeek();
00160   KOCore::self()->calendarSystem()->previousYearDate( firstSelected );
00161 
00162   selectWeekByDay( weekDay, firstSelected );
00163 }
00164 
00165 void DateNavigator::selectPreviousMonth()
00166 {
00167   QDate firstSelected = mSelectedDates.first();
00168   int weekDay = firstSelected.dayOfWeek();
00169   KOCore::self()->calendarSystem()->previousMonthDate( firstSelected );
00170 
00171   selectWeekByDay( weekDay, firstSelected );
00172 }
00173 
00174 void DateNavigator::selectNextMonth()
00175 {
00176   QDate firstSelected = mSelectedDates.first();
00177   int weekDay = firstSelected.dayOfWeek();
00178 
00179   KOCore::self()->calendarSystem()->nextMonthDate( firstSelected );
00180 
00181   selectWeekByDay( weekDay, firstSelected );
00182 }
00183 
00184 void DateNavigator::selectNextYear()
00185 {
00186   QDate firstSelected = mSelectedDates.first();
00187   int weekDay = firstSelected.dayOfWeek();
00188   KOCore::self()->calendarSystem()->nextYearDate( firstSelected );
00189 
00190   selectWeekByDay( weekDay, firstSelected );
00191 }
00192 
00193 void DateNavigator::selectPrevious()
00194 {
00195   int offset = -7;
00196   if ( datesCount() == 1 ) {
00197     offset = -1;
00198   }
00199 
00200   selectDates( mSelectedDates.first().addDays( offset ), datesCount() );
00201 }
00202 
00203 void DateNavigator::selectNext()
00204 {
00205   int offset = 7;
00206   if ( datesCount() == 1 ) {
00207     offset = 1;
00208   }
00209 
00210   selectDates( mSelectedDates.first().addDays( offset ), datesCount() );
00211 }
00212 
00213 void DateNavigator::emitSelected()
00214 {
00215   emit datesSelected( mSelectedDates );
00216 }
00217 
00218 #include "datenavigator.moc"
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