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tdepim/korganizer/datenavigator.cpp

326 lines
8.9 KiB

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