Check in the pristine copy of ICU 4.6...

icu46/source/i18n/cecal.h

+/*
+*******************************************************************************
+* Copyright (C) 2003 - 2008, International Business Machines Corporation and  *
+* others. All Rights Reserved.                                                *
+*******************************************************************************
+*/
+
+#ifndef CECAL_H
+#define CECAL_H
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+
+#include "unicode/calendar.h"
+
+U_NAMESPACE_BEGIN
+
+/**
+ * Base class for EthiopicCalendar and CopticCalendar.
+ * @internal
+ */
+class U_I18N_API CECalendar : public Calendar {
+
+protected:
+    //-------------------------------------------------------------------------
+    // Constructors...
+    //-------------------------------------------------------------------------
+
+    /**
+     * Constructs a CECalendar based on the current time in the default time zone
+     * with the given locale with the Julian epoch offiset
+     *
+     * @param aLocale  The given locale.
+     * @param success  Indicates the status of CECalendar object construction.
+     *                 Returns U_ZERO_ERROR if constructed successfully.
+     * @internal
+     */
+    CECalendar(const Locale& aLocale, UErrorCode& success);
+
+    /**
+     * Copy Constructor
+     * @internal
+     */
+    CECalendar (const CECalendar& other);
+
+    /**
+     * Destructor.
+     * @internal
+     */
+    virtual ~CECalendar();
+
+    /**
+     * Default assignment operator
+     * @param right    Calendar object to be copied
+     * @internal
+     */
+    CECalendar& operator=(const CECalendar& right);
+
+protected:
+    //-------------------------------------------------------------------------
+    // Calendar framework
+    //-------------------------------------------------------------------------
+
+    /**
+     * Return JD of start of given month/extended year
+     * @internal
+     */
+    virtual int32_t handleComputeMonthStart(int32_t eyear, int32_t month, UBool useMonth) const;
+
+    /**
+     * Calculate the limit for a specified type of limit and field
+     * @internal
+     */
+    virtual int32_t handleGetLimit(UCalendarDateFields field, ELimitType limitType) const;
+
+    /**
+     * (Overrides Calendar) Return true if the current date for this Calendar is in
+     * Daylight Savings Time. Recognizes DST_OFFSET, if it is set.
+     *
+     * @param status Fill-in parameter which receives the status of this operation.
+     * @return   True if the current date for this Calendar is in Daylight Savings Time,
+     *           false, otherwise.
+     * @internal
+     */
+    virtual UBool inDaylightTime(UErrorCode&) const;
+
+    /**
+     * Returns TRUE because Coptic/Ethiopic Calendar does have a default century
+     * @internal
+     */
+    virtual UBool haveDefaultCentury() const;
+
+protected:
+    /**
+     * The Coptic and Ethiopic calendars differ only in their epochs.
+     * This method must be implemented by CECalendar subclasses to
+     * return the date offset from Julian
+     * @internal
+     */
+    virtual int32_t getJDEpochOffset() const = 0;
+
+    /**
+     * Convert an Coptic/Ethiopic year, month, and day to a Julian day.
+     *
+     * @param year the extended year
+     * @param month the month
+     * @param day the day
+     * @param jdEpochOffset the epoch offset from Julian epoch
+     * @return Julian day
+     * @internal
+     */
+    static int32_t ceToJD(int32_t year, int32_t month, int32_t date,
+        int32_t jdEpochOffset);
+
+    /**
+     * Convert a Julian day to an Coptic/Ethiopic year, month and day
+     *
+     * @param julianDay the Julian day
+     * @param jdEpochOffset the epoch offset from Julian epoch
+     * @param year receives the extended year
+     * @param month receives the month
+     * @param date receives the day
+     * @internal
+     */
+    static void jdToCE(int32_t julianDay, int32_t jdEpochOffset,
+        int32_t& year, int32_t& month, int32_t& day);
+};
+
+U_NAMESPACE_END
+
+#endif /* #if !UCONFIG_NO_FORMATTING */
+#endif
+//eof