dtitvinf.h

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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
 *******************************************************************************
 * Copyright (C) 2008-2016, International Business Machines Corporation and
 * others. All Rights Reserved.
 *******************************************************************************
 *
 * File DTITVINF.H
 *
 *******************************************************************************
 */

#ifndef __DTITVINF_H__
#define __DTITVINF_H__

#include "unicode/utypes.h"

#if U_SHOW_CPLUSPLUS_API

#if !UCONFIG_NO_FORMATTING

#include "unicode/udat.h"
#include "unicode/locid.h"
#include "unicode/ucal.h"
#include "unicode/dtptngen.h"

U_NAMESPACE_BEGIN

class U_I18N_API DateIntervalInfo final : public UObject {
public:
    DateIntervalInfo(UErrorCode& status);


    DateIntervalInfo(const Locale& locale, UErrorCode& status);


    DateIntervalInfo(const DateIntervalInfo&);

    DateIntervalInfo& operator=(const DateIntervalInfo&);

    virtual DateIntervalInfo* clone() const;

    virtual ~DateIntervalInfo();


    virtual bool operator==(const DateIntervalInfo& other) const;

    bool operator!=(const DateIntervalInfo& other) const;



    void setIntervalPattern(const UnicodeString& skeleton,
                            UCalendarDateFields lrgDiffCalUnit,
                            const UnicodeString& intervalPattern,
                            UErrorCode& status);

    UnicodeString& getIntervalPattern(const UnicodeString& skeleton,
                                      UCalendarDateFields field,
                                      UnicodeString& result,
                                      UErrorCode& status) const;

    UnicodeString& getFallbackIntervalPattern(UnicodeString& result) const;


    void setFallbackIntervalPattern(const UnicodeString& fallbackPattern,
                                    UErrorCode& status);


    UBool getDefaultOrder() const;


    virtual UClassID getDynamicClassID() const override;

    static UClassID U_EXPORT2 getStaticClassID();


private:
    friend class DateIntervalFormat;

    struct U_HIDDEN DateIntervalSink;

    enum IntervalPatternIndex
    {
        kIPI_ERA,
        kIPI_YEAR,
        kIPI_MONTH,
        kIPI_DATE,
        kIPI_AM_PM,
        kIPI_HOUR,
        kIPI_MINUTE,
        kIPI_SECOND,
        kIPI_MILLISECOND,
        kIPI_MAX_INDEX
    };
public:
#ifndef U_HIDE_INTERNAL_API

     enum {
         kMaxIntervalPatternIndex = kIPI_MAX_INDEX
     };
#endif  /* U_HIDE_INTERNAL_API */
private:


    void initializeData(const Locale& locale, UErrorCode& status);


    /* Set Interval pattern.
     *
     * It sets interval pattern into the hash map.
     *
     * @param skeleton         skeleton on which the interval pattern based
     * @param lrgDiffCalUnit   the largest different calendar unit.
     * @param intervalPattern  the interval pattern on the largest different
     *                         calendar unit.
     * @param status           output param set to success/failure code on exit
     */
    void setIntervalPatternInternally(const UnicodeString& skeleton,
                                      UCalendarDateFields lrgDiffCalUnit,
                                      const UnicodeString& intervalPattern,
                                      UErrorCode& status);


    const UnicodeString* getBestSkeleton(const UnicodeString& skeleton,
                                         int8_t& bestMatchDistanceInfo) const;


    static void U_EXPORT2 parseSkeleton(const UnicodeString& skeleton,
                                        int32_t* skeletonFieldWidth);


    static UBool U_EXPORT2 stringNumeric(int32_t fieldWidth,
                                         int32_t anotherFieldWidth,
                                         char patternLetter);


    static IntervalPatternIndex U_EXPORT2 calendarFieldToIntervalIndex(
                                                      UCalendarDateFields field,
                                                      UErrorCode& status);


    void deleteHash(Hashtable* hTable);


    Hashtable* initHash(UErrorCode& status);



    void copyHash(const Hashtable* source, Hashtable* target, UErrorCode& status);


    // data members
    // fallback interval pattern
    UnicodeString fFallbackIntervalPattern;
    // default order
    UBool fFirstDateInPtnIsLaterDate;

    // HashMap<UnicodeString, UnicodeString[kIPI_MAX_INDEX]>
    // HashMap( skeleton, pattern[largest_different_field] )
    Hashtable* fIntervalPatterns;

};// end class DateIntervalInfo


inline bool
DateIntervalInfo::operator!=(const DateIntervalInfo& other) const {
    return !operator==(other);
}


U_NAMESPACE_END

#endif

#endif /* U_SHOW_CPLUSPLUS_API */

#endif