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326 lines
8.9 KiB
326 lines
8.9 KiB
/*
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This file is part of KOrganizer.
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Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
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Copyright (C) 2003-2004 Reinhold Kainhofer <reinhold@kainhofer.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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As a special exception, permission is given to link this program
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with any edition of TQt, and distribute the resulting executable,
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without including the source code for TQt in the source distribution.
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*/
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#include "datenavigator.h"
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#include "koglobals.h"
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#include <kcalendarsystem.h>
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#include <kdebug.h>
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#include <kglobal.h>
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#include <klocale.h>
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using namespace KCal;
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DateNavigator::DateNavigator( TQObject *parent, const char *name )
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: TQObject( parent, name )
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{
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mSelectedDates.append( TQDate::tqcurrentDate() );
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}
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DateNavigator::~DateNavigator()
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{
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}
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DateList DateNavigator::selectedDates()
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{
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return mSelectedDates;
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}
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int DateNavigator::datesCount() const
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{
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return mSelectedDates.count();
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}
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void DateNavigator::selectDates( const DateList &dateList )
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{
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if ( dateList.count() > 0 ) {
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mSelectedDates = dateList;
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emitSelected();
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}
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}
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void DateNavigator::selectDate( const TQDate &date )
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{
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TQDate d = date;
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if ( !d.isValid() ) {
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kdDebug(5850) << "DateNavigator::selectDates(TQDate): an invalid date was passed as a parameter!" << endl;
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d = TQDate::tqcurrentDate();
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}
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mSelectedDates.clear();
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mSelectedDates.append( d );
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emitSelected();
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}
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void DateNavigator::selectDates( int count )
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{
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selectDates( mSelectedDates.first(), count );
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}
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void DateNavigator::selectDates( const TQDate &d, int count, const TQDate &preferredMonth )
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{
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if ( count > MAX_SELECTABLE_DAYS ) {
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count = MAX_SELECTABLE_DAYS;
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}
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DateList dates;
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int i;
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for( i = 0; i < count; ++i ) {
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dates.append( d.addDays( i ) );
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}
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mSelectedDates = dates;
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emitSelected( preferredMonth );
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}
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void DateNavigator::selectWeekByDay( int weekDay, const TQDate &d, const TQDate &preferredMonth )
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{
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int dateCount = mSelectedDates.count();
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bool weekStart = ( weekDay == KGlobal::locale()->weekStartDay() );
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if ( weekStart && dateCount == 7 ) {
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selectWeek( d, preferredMonth );
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} else {
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selectDates( d, dateCount, preferredMonth );
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}
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}
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void DateNavigator::selectWeek()
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{
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selectWeek( mSelectedDates.first() );
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}
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void DateNavigator::selectWeek( const TQDate &d, const TQDate &preferredMonth )
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{
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int dayOfWeek = KOGlobals::self()->calendarSystem()->dayOfWeek( d );
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int weekStart = KGlobal::locale()->weekStartDay();
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TQDate firstDate = d.addDays( weekStart - dayOfWeek );
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if ( weekStart != 1 && dayOfWeek < weekStart ) {
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firstDate = firstDate.addDays( -7 );
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}
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selectDates( firstDate, 7, preferredMonth );
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}
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void DateNavigator::selectWorkWeek()
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{
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selectWorkWeek( mSelectedDates.first() );
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}
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void DateNavigator::selectWorkWeek( const TQDate &d )
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{
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int weekStart = KGlobal::locale()->weekStartDay();
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int dayOfWeek = KOGlobals::self()->calendarSystem()->dayOfWeek( d );
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TQDate tqcurrentDate = d.addDays( weekStart - dayOfWeek );
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if ( weekStart != 1 && dayOfWeek < weekStart ) {
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tqcurrentDate = tqcurrentDate.addDays( -7 );
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}
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mSelectedDates.clear();
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int mask = KOGlobals::self()->getWorkWeekMask();
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for ( int i = 0; i < 7; ++i ) {
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if( (1<< ((i + weekStart + 6) % 7)) & (mask) ) {
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mSelectedDates.append( tqcurrentDate.addDays(i) );
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}
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}
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emitSelected();
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}
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void DateNavigator::selectToday()
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{
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TQDate d = TQDate::tqcurrentDate();
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int dateCount = mSelectedDates.count();
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if ( dateCount == 7 ) {
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selectWeek( d );
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} else if ( dateCount == 5 ) {
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selectWorkWeek( d );
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} else {
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selectDates( d, dateCount );
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}
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}
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void DateNavigator::selectPreviousYear()
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{
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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firstSelected = KOGlobals::self()->calendarSystem()->addYears( firstSelected, -1 );
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selectWeekByDay( weekDay, firstSelected );
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}
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void DateNavigator::selectPreviousMonth( const TQDate ¤tMonth,
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const TQDate &selectionLowerLimit,
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const TQDate &selectionUpperLimit )
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{
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shiftMonth( currentMonth,
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selectionLowerLimit,
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selectionUpperLimit,
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-1 );
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}
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void DateNavigator::selectPreviousWeek()
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{
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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firstSelected = KOGlobals::self()->calendarSystem()->addDays( firstSelected, -7 );
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selectWeekByDay( weekDay, firstSelected );
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}
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void DateNavigator::selectNextWeek()
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{
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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firstSelected = KOGlobals::self()->calendarSystem()->addDays( firstSelected, 7 );
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selectWeekByDay( weekDay, firstSelected );
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}
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void DateNavigator::shiftMonth( const TQDate ¤tMonth,
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const TQDate &selectionLowerLimit,
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const TQDate &selectionUpperLimit,
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int offset )
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{
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const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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firstSelected = calSys->addMonths( firstSelected, offset );
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/* Don't trust firstSelected to calculate the nextMonth. firstSelected
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can belong to a month other than currentMonth because KDateNavigator
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displays 7*6 days. firstSelected should only be used for selection
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purposes */
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const TQDate nextMonth = currentMonth.isValid() ?
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calSys->addMonths( currentMonth, offset ) : firstSelected;
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/* When firstSelected doesn't belong to currentMonth it can happen
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that the new selection won't be visible on our KDateNavigators
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so we must adjust it */
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if ( selectionLowerLimit.isValid() &&
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firstSelected < selectionLowerLimit ) {
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firstSelected = selectionLowerLimit;
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} else if ( selectionUpperLimit.isValid() &&
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firstSelected > selectionUpperLimit ) {
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firstSelected = selectionUpperLimit.addDays( -6 );
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}
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selectWeekByDay( weekDay, firstSelected, nextMonth );
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}
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void DateNavigator::selectNextMonth( const TQDate ¤tMonth,
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const TQDate &selectionLowerLimit,
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const TQDate &selectionUpperLimit )
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{
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shiftMonth( currentMonth,
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selectionLowerLimit,
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selectionUpperLimit,
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1 );
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}
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void DateNavigator::selectNextYear()
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{
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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firstSelected = KOGlobals::self()->calendarSystem()->addYears( firstSelected, 1 );
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selectWeekByDay( weekDay, firstSelected );
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}
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void DateNavigator::selectPrevious()
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{
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int offset = -7;
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if ( datesCount() == 1 ) {
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offset = -1;
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}
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selectDates( mSelectedDates.first().addDays( offset ), datesCount() );
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}
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void DateNavigator::selectNext()
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{
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int offset = 7;
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if ( datesCount() == 1 ) {
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offset = 1;
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}
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selectDates( mSelectedDates.first().addDays( offset ), datesCount() );
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}
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void DateNavigator::selectMonth( int month )
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{
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const KCalendarSystem *calSys = KOGlobals::self()->calendarSystem();
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TQDate firstSelected = mSelectedDates.first();
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int weekDay = firstSelected.dayOfWeek();
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int day = calSys->day( firstSelected );
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calSys->setYMD( firstSelected, calSys->year( firstSelected ), month, 1 );
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int days = calSys->daysInMonth( firstSelected );
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// As day we use either the selected date, or if the month has less days
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// than that, we use the max day of that month
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if ( day > days ) {
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day = days;
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}
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TQDate requestedMonth;
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calSys->setYMD( firstSelected, calSys->year( firstSelected ), month, day );
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calSys->setYMD( requestedMonth, calSys->year( firstSelected ), month, 1 );
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selectWeekByDay( weekDay, firstSelected, requestedMonth );
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}
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void DateNavigator::selectYear( int year )
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{
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TQDate firstSelected = mSelectedDates.first();
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int deltaYear = year - KOGlobals::self()->calendarSystem()->year( firstSelected );
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firstSelected = KOGlobals::self()->calendarSystem()->addYears( firstSelected, deltaYear );
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int weekDay = firstSelected.dayOfWeek();
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selectWeekByDay( weekDay, firstSelected );
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}
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void DateNavigator::emitSelected( const TQDate &preferredMonth )
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{
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emit datesSelected( mSelectedDates, preferredMonth );
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}
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#include "datenavigator.moc"
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