choicfmt.h

00001 /*
00002 ********************************************************************************
00003 *   Copyright (C) 1997-2004, 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 
00027 #if !UCONFIG_NO_FORMATTING
00028 
00029 #include "unicode/unistr.h"
00030 #include "unicode/numfmt.h"
00031 #include "unicode/fieldpos.h"
00032 #include "unicode/format.h"
00033 
00034 U_NAMESPACE_BEGIN
00035 
00036 class MessageFormat;
00037 
00254 class U_I18N_API ChoiceFormat: public NumberFormat {
00255 public:
00265     ChoiceFormat(const UnicodeString& pattern,
00266                  UErrorCode& status);
00267 
00268 
00279     ChoiceFormat(const double* limits,
00280                  const UnicodeString* formats,
00281                  int32_t count );
00282 
00300     ChoiceFormat(const double* limits,
00301                  const UBool* closures,
00302                  const UnicodeString* formats,
00303                  int32_t count);
00304 
00311     ChoiceFormat(const ChoiceFormat& that);
00312 
00319     const ChoiceFormat& operator=(const ChoiceFormat& that);
00320 
00325     virtual ~ChoiceFormat();
00326 
00334     virtual Format* clone(void) const;
00335 
00344     virtual UBool operator==(const Format& other) const;
00345 
00354     virtual void applyPattern(const UnicodeString& pattern,
00355                               UErrorCode& status);
00356 
00367     virtual void applyPattern(const UnicodeString& pattern,
00368                              UParseError& parseError,
00369                              UErrorCode& status);
00378     virtual UnicodeString& toPattern(UnicodeString &pattern) const;
00379 
00380 #ifdef U_USE_CHOICE_FORMAT_DEPRECATES
00381 
00394     virtual void adoptChoices(double* limitsToAdopt,
00395                               UnicodeString* formatsToAdopt,
00396                               int32_t count );  
00397 
00408     virtual void adoptChoices(double* limitsToAdopt,
00409                               UBool* closuresToAdopt,
00410                               UnicodeString* formatsToAdopt,
00411                               int32_t count);
00412 #endif
00413 
00426     virtual void setChoices(const double* limitsToCopy,
00427                             const UnicodeString* formatsToCopy,
00428                             int32_t count );    
00429 
00439     virtual void setChoices(const double* limits,
00440                             const UBool* closures,
00441                             const UnicodeString* formats,
00442                             int32_t count);
00443 
00451     virtual const double* getLimits(int32_t& count) const;
00452     
00461     virtual const UBool* getClosures(int32_t& count) const;
00462 
00470     virtual const UnicodeString* getFormats(int32_t& count) const;
00471 
00483     virtual UnicodeString& format(double number,
00484                                   UnicodeString& appendTo,
00485                                   FieldPosition& pos) const;
00497     virtual UnicodeString& format(int32_t number,
00498                                   UnicodeString& appendTo,
00499                                   FieldPosition& pos) const;
00500 
00512     virtual UnicodeString& format(int64_t number,
00513                                   UnicodeString& appendTo,
00514                                   FieldPosition& pos) const;
00515 
00530     virtual UnicodeString& format(const Formattable* objs,
00531                                   int32_t cnt,
00532                                   UnicodeString& appendTo,
00533                                   FieldPosition& pos,
00534                                   UErrorCode& success) const;
00549     virtual UnicodeString& format(const Formattable& obj,
00550                                   UnicodeString& appendTo,
00551                                   FieldPosition& pos, 
00552                                   UErrorCode& status) const;
00553 
00565     UnicodeString& format(const Formattable& obj,
00566                           UnicodeString& appendTo,
00567                           UErrorCode& status) const;
00568 
00580     UnicodeString& format(  double number,
00581                             UnicodeString& appendTo) const;
00582 
00594     UnicodeString& format(  int32_t number,
00595                             UnicodeString& appendTo) const;
00596 
00615     virtual void parse(const UnicodeString& text,
00616                        Formattable& result,
00617                        ParsePosition& parsePosition) const;
00618     
00635     virtual void parse(const UnicodeString& text,
00636                        Formattable& result,
00637                        UErrorCode& status) const;
00638     
00639     
00640 public:
00652     virtual UClassID getDynamicClassID(void) const;
00653 
00665     static UClassID U_EXPORT2 getStaticClassID(void);
00666 
00667 private:
00668     // static cache management (thread-safe)
00669   //  static NumberFormat* getNumberFormat(UErrorCode &status); // call this function to 'check out' a numberformat from the cache.
00670   //  static void          releaseNumberFormat(NumberFormat *adopt); // call this function to 'return' the number format to the cache.
00671     
00678     static double stod(const UnicodeString& string);
00679 
00687     static UnicodeString& dtos(double value, UnicodeString& string);
00688 
00689     ChoiceFormat(); // default constructor not implemented
00690 
00702     ChoiceFormat(const UnicodeString& newPattern,
00703                  UParseError& parseError,
00704                  UErrorCode& status);
00705 
00706     friend class MessageFormat;
00744     double*         fChoiceLimits;
00745     UBool*          fClosures;
00746     UnicodeString*  fChoiceFormats;
00747     int32_t         fCount;
00748 };
00749  
00750 inline UnicodeString&
00751 ChoiceFormat::format(const Formattable& obj,
00752                      UnicodeString& appendTo,
00753                      UErrorCode& status) const {
00754     // Don't use Format:: - use immediate base class only,
00755     // in case immediate base modifies behavior later.
00756     return NumberFormat::format(obj, appendTo, status);
00757 }
00758 
00759 inline UnicodeString&
00760 ChoiceFormat::format(double number,
00761                      UnicodeString& appendTo) const {
00762     return NumberFormat::format(number, appendTo);
00763 }
00764 
00765 inline UnicodeString&
00766 ChoiceFormat::format(int32_t number,
00767                      UnicodeString& appendTo) const {
00768     return NumberFormat::format(number, appendTo);
00769 }
00770 U_NAMESPACE_END
00771 
00772 #endif /* #if !UCONFIG_NO_FORMATTING */
00773 
00774 #endif // _CHOICFMT
00775 //eof

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