1 files changed, 97 insertions, 0 deletions
diff --git a/korganizer/datechecker.cpp b/korganizer/datechecker.cpp
new file mode 100644
index 000000000..43654983b
--- /dev/null
+++ b/korganizer/datechecker.cpp
@@ -0,0 +1,97 @@
+/*
+    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 <qtimer.h>
+
+#include <kdebug.h>
+#include <klocale.h>
+#include <kglobal.h>
+
+#include "datechecker.h"
+
+DateChecker::DateChecker( QObject *parent, const char *name )
+  : QObject( parent, name ), 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, "mUpdateTimer" );
+        connect( mUpdateTimer, SIGNAL( timeout() ),
+                 SLOT( possiblyPastMidnight() ) );
+      }
+      mUpdateTimer->start( 0, true );
+      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, true );
+  }
+}
+
+#include "datechecker.moc"