choicfmt.h

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00001 /*
00002 ********************************************************************************
00003 *   Copyright (C) 1997-2005, 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 
00385 #ifdef U_USE_CHOICE_FORMAT_DEPRECATES
00386 
00399     virtual void adoptChoices(double* limitsToAdopt,
00400                               UnicodeString* formatsToAdopt,
00401                               int32_t count );  
00402 
00413     virtual void adoptChoices(double* limitsToAdopt,
00414                               UBool* closuresToAdopt,
00415                               UnicodeString* formatsToAdopt,
00416                               int32_t count);
00417 #endif
00418 
00431     virtual void setChoices(const double* limitsToCopy,
00432                             const UnicodeString* formatsToCopy,
00433                             int32_t count );    
00434 
00444     virtual void setChoices(const double* limits,
00445                             const UBool* closures,
00446                             const UnicodeString* formats,
00447                             int32_t count);
00448 
00456     virtual const double* getLimits(int32_t& count) const;
00457     
00466     virtual const UBool* getClosures(int32_t& count) const;
00467 
00475     virtual const UnicodeString* getFormats(int32_t& count) const;
00476 
00488     virtual UnicodeString& format(double number,
00489                                   UnicodeString& appendTo,
00490                                   FieldPosition& pos) const;
00502     virtual UnicodeString& format(int32_t number,
00503                                   UnicodeString& appendTo,
00504                                   FieldPosition& pos) const;
00505 
00517     virtual UnicodeString& format(int64_t number,
00518                                   UnicodeString& appendTo,
00519                                   FieldPosition& pos) const;
00520 
00535     virtual UnicodeString& format(const Formattable* objs,
00536                                   int32_t cnt,
00537                                   UnicodeString& appendTo,
00538                                   FieldPosition& pos,
00539                                   UErrorCode& success) const;
00554     virtual UnicodeString& format(const Formattable& obj,
00555                                   UnicodeString& appendTo,
00556                                   FieldPosition& pos, 
00557                                   UErrorCode& status) const;
00558 
00570     UnicodeString& format(const Formattable& obj,
00571                           UnicodeString& appendTo,
00572                           UErrorCode& status) const;
00573 
00585     UnicodeString& format(  double number,
00586                             UnicodeString& appendTo) const;
00587 
00599     UnicodeString& format(  int32_t number,
00600                             UnicodeString& appendTo) const;
00601 
00620     virtual void parse(const UnicodeString& text,
00621                        Formattable& result,
00622                        ParsePosition& parsePosition) const;
00623     
00640     virtual void parse(const UnicodeString& text,
00641                        Formattable& result,
00642                        UErrorCode& status) const;
00643     
00644     
00645 public:
00657     virtual UClassID getDynamicClassID(void) const;
00658 
00670     static UClassID U_EXPORT2 getStaticClassID(void);
00671 
00672 private:
00673     // static cache management (thread-safe)
00674   //  static NumberFormat* getNumberFormat(UErrorCode &status); // call this function to 'check out' a numberformat from the cache.
00675   //  static void          releaseNumberFormat(NumberFormat *adopt); // call this function to 'return' the number format to the cache.
00676     
00683     static double stod(const UnicodeString& string);
00684 
00692     static UnicodeString& dtos(double value, UnicodeString& string);
00693 
00694     ChoiceFormat(); // default constructor not implemented
00695 
00707     ChoiceFormat(const UnicodeString& newPattern,
00708                  UParseError& parseError,
00709                  UErrorCode& status);
00710 
00711     friend class MessageFormat;
00749     double*         fChoiceLimits;
00750     UBool*          fClosures;
00751     UnicodeString*  fChoiceFormats;
00752     int32_t         fCount;
00753 };
00754  
00755 inline UnicodeString&
00756 ChoiceFormat::format(const Formattable& obj,
00757                      UnicodeString& appendTo,
00758                      UErrorCode& status) const {
00759     // Don't use Format:: - use immediate base class only,
00760     // in case immediate base modifies behavior later.
00761     return NumberFormat::format(obj, appendTo, status);
00762 }
00763 
00764 inline UnicodeString&
00765 ChoiceFormat::format(double number,
00766                      UnicodeString& appendTo) const {
00767     return NumberFormat::format(number, appendTo);
00768 }
00769 
00770 inline UnicodeString&
00771 ChoiceFormat::format(int32_t number,
00772                      UnicodeString& appendTo) const {
00773     return NumberFormat::format(number, appendTo);
00774 }
00775 U_NAMESPACE_END
00776 
00777 #endif /* #if !UCONFIG_NO_FORMATTING */
00778 
00779 #endif // _CHOICFMT
00780 //eof

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