diff -r c198609911f9 -r fd30d51f876b calendarui/inc/calendateutils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/calendarui/inc/calendateutils.h	Mon May 03 12:30:32 2010 +0300
@@ -0,0 +1,147 @@
+/*
+* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  ?Description
+ *
+*/
+
+#ifndef __CALENDATEUTILS_H__
+#define __CALENDATEUTILS_H__
+
+#include <e32base.h>
+#include <qglobal.h>					// Q_DECL_EXPORT macro
+
+#ifdef  CALENDATEUTILS_DLL
+#define CALENDATEUTIL_EXPORT Q_DECL_EXPORT
+#else
+#define CALENDATEUTIL_EXPORT Q_DECL_IMPORT
+#endif
+
+// forward declarations
+class QDateTime;
+
+/**
+ *  CalenDateUtils contains static utility functions useful
+ *  when comparing and calculating with dates and times.
+ *
+ *  @lib Calendar.app
+ *  @since 2.1
+ */
+
+class CALENDATEUTIL_EXPORT CalenDateUtils 
+    {
+public:
+    static bool onSameDay( const QDateTime& x, const QDateTime& y );
+    static bool onSameMonth( const QDateTime& x, const QDateTime& y );
+    static QDateTime beginningOfDay( const QDateTime& startTime );
+    static QDateTime displayTimeOnDay( const QDateTime& startTime, 
+                                            const QDateTime& day );
+
+    static bool timeRangesIntersect( const QDateTime& xStart,
+                                               const QDateTime& xEnd,
+                                               const QDateTime& yStart, 
+                                               const QDateTime& yEnd );
+
+    /**
+     * Is aTime between KCalenMaxYear/KCalenMaxMonth/KCalenMaxDay
+     * and KCalenMinYear/KCalenMinMonth/KCalenMinDay.
+     * Min/Max day is defined agenda server.
+     * @param aTime aTime to be checked
+     * @return EFalse : Out of range
+     */
+    static bool isValidDay( const QDateTime& time );
+
+    /**
+     * Return ETrue if aTime is NULL
+     * @param aTime time to be compared against NULL time
+     */
+    static bool isNullTime( QDateTime& time );
+
+    /**
+     * Return Min or Max time if aTime goes out of bounds. 
+     * Valid range is [CalenDateUtils::MinTime(), CalenDateUtils::MaxTime]
+     * @param aTime time to be checked
+     * @return aTime, if aTime in [CalenDateUtils::MinTime(), CalenDateUtils::MaxTime]
+     *         CalenDateUtils::MinTime(), if aTime < CalenDateUtils::MinTime()
+     *         CalenDateUtils::MaxTime(), if aTime > CalenDateUtils::MaxTime()
+     */
+    static QDateTime limitToValidTime( const QDateTime& time );
+
+    /**
+     * Return maximum allowed time. (31.
+     */
+    static QDateTime maxTime();
+
+    /**
+     * Return minimum allowed time.
+     */
+    static QDateTime minTime();
+
+    /**
+     * Return time of day as a minutes from midnight. Useful to get hours::minutes component of datetime, 
+     * regardless of date
+     */
+    static int timeOfDay( const QDateTime& dateTime );
+
+    /**
+     * Round QDateTime to previous full hour, e.g. RoundToPreviousHour( 23.11.2006 9:31 ) = 23.11.2006 9:00
+     */
+    static QDateTime roundToPreviousHour( const QDateTime& dateTime );
+
+    /**
+     * Round QDateTimeIntervalMinutes to previous full hour, e.g. RoundToPreviousHour( 130 min ) = 120 min
+     */
+    static int roundToPreviousHour( const int& minutes );
+    
+
+    /**
+     * @return current time. 
+     */ 
+    static QDateTime now();
+    
+    /**
+     * @return today with time component set to 00:00. 
+     */ 
+    static QDateTime today();
+
+    /**
+     * @return ETrue if given aTime is on today, EFalse otherwise
+     */     
+    static bool isOnToday( const QDateTime& time );
+
+    /* 
+     * Given aDate = DD::MM::YY @ hh:mm:ss, it returns a QDateTime obj DD::MM::YY @ 08:00 am
+     * @param: aDate, which has the DD::MM::YY
+     */
+    static QDateTime defaultTime( const QDateTime& date );
+    
+    static QDateTime pastOf(const QDateTime& dateTime, int numOfDays);
+        
+    static QDateTime futureOf(const QDateTime& dateTime, int numOfDays);
+    
+   
+private:
+    // Hiding constructor, because this is static utility class.
+    //lint -e{1526} 
+    CalenDateUtils();
+
+    // Hiding assignment, because this is static utility class.
+    //lint -e{1526} 
+    CalenDateUtils& operator=( const CalenDateUtils& );
+
+    };
+
+#endif // __CALENDATEUTILS_H__
+
+
+// End of File