williamr@2: // Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
williamr@2: // All rights reserved.
williamr@2: // This component and the accompanying materials are made available
williamr@4: // under the terms of "Eclipse Public License v1.0"
williamr@2: // which accompanies this distribution, and is available
williamr@4: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@2: //
williamr@2: // Initial Contributors:
williamr@2: // Nokia Corporation - initial contribution.
williamr@2: //
williamr@2: // Contributors:
williamr@2: //
williamr@2: // Description:
williamr@2: //
williamr@2: 
williamr@2: #ifndef __CALENDARCONVERTER_H__
williamr@2: #define __CALENDARCONVERTER_H__
williamr@2: 
williamr@4: // System includes
williamr@2: #include <e32std.h>
williamr@2: #include <e32base.h>
williamr@2: 
williamr@2: class TChineseDate  
williamr@2: /** Chinese date.
williamr@2: 
williamr@2: Its public member data is the year cycle, the year (1-60), the month (1-12), whether or 
williamr@2: not the month is a leap month, and the day in the month (1-29 or 30). 
williamr@2: @publishedAll
williamr@2: @released */
williamr@2: 	{
williamr@2: public:
williamr@2: 	IMPORT_C TChineseDate();
williamr@2: 	IMPORT_C TBool operator==(const TChineseDate& aDate) const;
williamr@2: public:
williamr@2: 	/** The year cycle. */
williamr@2: 	TInt iCycle;
williamr@2: 	/** The year (1-60). */
williamr@2: 	TInt iYear;
williamr@2: 	/** The month (1-12). */
williamr@2: 	TInt iMonth;
williamr@2: 	/** Whether or not the month is a leap month. */
williamr@2: 	TBool iLeapMonth;
williamr@2: 	/** The day in the month (1-29 or 30). */
williamr@2: 	TInt iDay;
williamr@2: 	};
williamr@2: 
williamr@2: 
williamr@2: class CChineseCalendarConverter : public CBase
williamr@2: /** Converts between TDateTime and TChineseDate formats in both directions. Chinese dates 
williamr@2: are calculated using the -2636 epoch. This is equivalent to 2637 BCE (Before Common Era). 
williamr@2: @publishedAll
williamr@2: @released */
williamr@2: 	{
williamr@2: public:
williamr@2: 	IMPORT_C static CChineseCalendarConverter* NewL();
williamr@2: 	/** Creates a Chinese date from a TDateTime value.
williamr@2: 	
williamr@2: 	@param aDateTime The date/time value to convert.
williamr@2: 	@param aChineseDate On return, contains the Chinese date. If the supplied date 
williamr@2: 	is invalid, this contains KErrArgument. */
williamr@2: 	virtual void DateTimeToChineseL(const TDateTime& aDateTime, TChineseDate& aChineseDate)=0;
williamr@2: 
williamr@2: 	/** Creates a TDateTime value from a Chinese date.
williamr@2: 	
williamr@2: 	@param aChineseDate A date in Chinese format.
williamr@2: 	@param aDateTime On return, contains a date value. If the supplied date is 
williamr@2: 	invalid, this contains KErrArgument. */
williamr@2: 	virtual void ChineseToDateTimeL(const TChineseDate& aChineseDate, TDateTime& aDateTime)=0;
williamr@2: 
williamr@2: 	/** Returns the range of dates, in standard date format, acceptable to the Chinese 
williamr@2: 	calendar converter. 
williamr@2: 	
williamr@2: 	@param aLower On return, contains the lower limit of the converter.
williamr@2: 	@param aUpper On return, contains the upper limit of the converter. */
williamr@2: 	virtual void DateRange(TDateTime& aLower, TDateTime& aUpper)=0;
williamr@2: 
williamr@2: 	/** Returns the range of dates, in Chinese date format, acceptable to the Chinese 
williamr@2: 	calendar converter.
williamr@2: 	
williamr@2: 	@param aLower On return, contains the lower limit of the converter.
williamr@2: 	@param aUpper On return, contains the upper limit of the converter. */
williamr@2: 	virtual void DateRange(TChineseDate& aLower, TChineseDate& aUpper)=0;
williamr@2: 	/** Returns the result of the last calendar conversion as a Julian date. 
williamr@2: 	
williamr@2: 	@return The Julian date. */
williamr@2: 	virtual TReal JulianDate() __SOFTFP =0;
williamr@2: 	};
williamr@2: #endif