ICU 4.4.2 4.4.2
choicfmt.h
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00001 /*
00002 ********************************************************************************
00003 *   Copyright (C) 1997-2010, International Business Machines
00004 *   Corporation and others.  All Rights Reserved.
00005 ********************************************************************************
00006 *
00007 * File CHOICFMT.H
00008 *
00009 * Modification History:
00010 *
00011 *   Date        Name        Description
00012 *   02/19/97    aliu        Converted from java.
00013 *   03/20/97    helena      Finished first cut of implementation and got rid
00014 *                           of nextDouble/previousDouble and replaced with
00015 *                           boolean array.
00016 *   4/10/97     aliu        Clean up.  Modified to work on AIX.
00017 *   8/6/97      nos         Removed overloaded constructor, member var 'buffer'.
00018 *   07/22/98    stephen     Removed operator!= (implemented in Format)
00019 ********************************************************************************
00020 */
00021 
00022 #ifndef CHOICFMT_H
00023 #define CHOICFMT_H
00024 
00025 #include "unicode/utypes.h"
00026 
00032 #if !UCONFIG_NO_FORMATTING
00033 
00034 #include "unicode/unistr.h"
00035 #include "unicode/numfmt.h"
00036 #include "unicode/fieldpos.h"
00037 #include "unicode/format.h"
00038 
00039 U_NAMESPACE_BEGIN
00040 
00041 class MessageFormat;
00042 
00259 class U_I18N_API ChoiceFormat: public NumberFormat {
00260 public:
00270     ChoiceFormat(const UnicodeString& pattern,
00271                  UErrorCode& status);
00272 
00273 
00284     ChoiceFormat(const double* limits,
00285                  const UnicodeString* formats,
00286                  int32_t count );
00287 
00305     ChoiceFormat(const double* limits,
00306                  const UBool* closures,
00307                  const UnicodeString* formats,
00308                  int32_t count);
00309 
00316     ChoiceFormat(const ChoiceFormat& that);
00317 
00324     const ChoiceFormat& operator=(const ChoiceFormat& that);
00325 
00330     virtual ~ChoiceFormat();
00331 
00339     virtual Format* clone(void) const;
00340 
00349     virtual UBool operator==(const Format& other) const;
00350 
00359     virtual void applyPattern(const UnicodeString& pattern,
00360                               UErrorCode& status);
00361 
00372     virtual void applyPattern(const UnicodeString& pattern,
00373                              UParseError& parseError,
00374                              UErrorCode& status);
00383     virtual UnicodeString& toPattern(UnicodeString &pattern) const;
00384 
00397     virtual void setChoices(const double* limitsToCopy,
00398                             const UnicodeString* formatsToCopy,
00399                             int32_t count );
00400 
00410     virtual void setChoices(const double* limits,
00411                             const UBool* closures,
00412                             const UnicodeString* formats,
00413                             int32_t count);
00414 
00422     virtual const double* getLimits(int32_t& count) const;
00423 
00432     virtual const UBool* getClosures(int32_t& count) const;
00433 
00441     virtual const UnicodeString* getFormats(int32_t& count) const;
00442 
00443 
00444     using NumberFormat::format;
00445 
00457     virtual UnicodeString& format(double number,
00458                                   UnicodeString& appendTo,
00459                                   FieldPosition& pos) const;
00471     virtual UnicodeString& format(int32_t number,
00472                                   UnicodeString& appendTo,
00473                                   FieldPosition& pos) const;
00474 
00486     virtual UnicodeString& format(int64_t number,
00487                                   UnicodeString& appendTo,
00488                                   FieldPosition& pos) const;
00489 
00504     virtual UnicodeString& format(const Formattable* objs,
00505                                   int32_t cnt,
00506                                   UnicodeString& appendTo,
00507                                   FieldPosition& pos,
00508                                   UErrorCode& success) const;
00523     virtual UnicodeString& format(const Formattable& obj,
00524                                   UnicodeString& appendTo,
00525                                   FieldPosition& pos,
00526                                   UErrorCode& status) const;
00527 
00539     UnicodeString& format(const Formattable& obj,
00540                           UnicodeString& appendTo,
00541                           UErrorCode& status) const;
00542 
00554     UnicodeString& format(  double number,
00555                             UnicodeString& appendTo) const;
00556 
00568     UnicodeString& format(  int32_t number,
00569                             UnicodeString& appendTo) const;
00570 
00589     virtual void parse(const UnicodeString& text,
00590                        Formattable& result,
00591                        ParsePosition& parsePosition) const;
00592 
00609     virtual void parse(const UnicodeString& text,
00610                        Formattable& result,
00611                        UErrorCode& status) const;
00612 
00613 
00614 public:
00626     virtual UClassID getDynamicClassID(void) const;
00627 
00639     static UClassID U_EXPORT2 getStaticClassID(void);
00640 
00641 private:
00642     // static cache management (thread-safe)
00643   //  static NumberFormat* getNumberFormat(UErrorCode &status); // call this function to 'check out' a numberformat from the cache.
00644   //  static void          releaseNumberFormat(NumberFormat *adopt); // call this function to 'return' the number format to the cache.
00645 
00652     static double stod(const UnicodeString& string);
00653 
00661     static UnicodeString& dtos(double value, UnicodeString& string);
00662 
00663     ChoiceFormat(); // default constructor not implemented
00664 
00676     ChoiceFormat(const UnicodeString& newPattern,
00677                  UParseError& parseError,
00678                  UErrorCode& status);
00679 
00680     friend class MessageFormat;
00718     double*         fChoiceLimits;
00719     UBool*          fClosures;
00720     UnicodeString*  fChoiceFormats;
00721     int32_t         fCount;
00722 };
00723 
00724 inline UnicodeString&
00725 ChoiceFormat::format(const Formattable& obj,
00726                      UnicodeString& appendTo,
00727                      UErrorCode& status) const {
00728     // Don't use Format:: - use immediate base class only,
00729     // in case immediate base modifies behavior later.
00730     return NumberFormat::format(obj, appendTo, status);
00731 }
00732 
00733 inline UnicodeString&
00734 ChoiceFormat::format(double number,
00735                      UnicodeString& appendTo) const {
00736     return NumberFormat::format(number, appendTo);
00737 }
00738 
00739 inline UnicodeString&
00740 ChoiceFormat::format(int32_t number,
00741                      UnicodeString& appendTo) const {
00742     return NumberFormat::format(number, appendTo);
00743 }
00744 U_NAMESPACE_END
00745 
00746 #endif /* #if !UCONFIG_NO_FORMATTING */
00747 
00748 #endif // _CHOICFMT
00749 //eof
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