kde-playground/kdepim/korganizer/datechecker.cpp
2015-04-14 21:49:29 +00:00

92 lines
2.6 KiB
C++

/*
This file is part of KOrganizer.
Copyright (c) 2002 Adriaan de Groot <groot@kde.org>
Copyright (c) 2004 Cornelius Schumacher <schumacher@kde.org>
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 Qt, and distribute the resulting executable,
without including the source code for Qt in the source distribution.
*/
#include "datechecker.h"
#include <QTimer>
DateChecker::DateChecker( QObject *parent ) : QObject( parent ), mUpdateTimer( 0 )
{
enableRollover( FollowMonth );
}
DateChecker::~DateChecker()
{
}
void DateChecker::enableRollover( RolloverType r )
{
switch( r ) {
case None:
if ( mUpdateTimer ) {
mUpdateTimer->stop();
delete mUpdateTimer;
mUpdateTimer = 0;
}
break;
case FollowDay:
case FollowMonth:
if ( !mUpdateTimer ) {
mUpdateTimer = new QTimer( this );
connect( mUpdateTimer, SIGNAL(timeout()),
SLOT(possiblyPastMidnight()) );
}
mUpdateTimer->setSingleShot( true );
mUpdateTimer->start( 0 );
mLastDayChecked = QDate::currentDate();
}
mUpdateRollover = r;
}
void DateChecker::passedMidnight()
{
QDate today = QDate::currentDate();
if ( today.month() != mLastDayChecked.month() ) {
if ( mUpdateRollover == FollowMonth ) {
emit monthPassed( today );
}
}
emit dayPassed( today );
}
void DateChecker::possiblyPastMidnight()
{
if ( mLastDayChecked != QDate::currentDate() ) {
passedMidnight();
mLastDayChecked = QDate::currentDate();
}
// Set the timer to go off 1 second after midnight
// or after 8 minutes, whichever comes first.
if ( mUpdateTimer ) {
QTime now = QTime::currentTime();
QTime midnight = QTime( 23, 59, 59 );
int msecsWait = qMin( 480000, now.msecsTo( midnight ) + 2000 );
mUpdateTimer->stop();
mUpdateTimer->start( msecsWait );
}
}