Victor Chang | 7322950 | 2020-09-17 13:39:19 +0100 | [diff] [blame^] | 1 | // © 2016 and later: Unicode, Inc. and others. |
| 2 | // License & terms of use: http://www.unicode.org/copyright.html |
| 3 | /* |
| 4 | ******************************************************************************** |
| 5 | * Copyright (C) 2005-2015, International Business Machines |
| 6 | * Corporation and others. All Rights Reserved. |
| 7 | ******************************************************************************** |
| 8 | * |
| 9 | * File WINNMFMT.H |
| 10 | * |
| 11 | ******************************************************************************** |
| 12 | */ |
| 13 | |
| 14 | #ifndef __WINNMFMT |
| 15 | #define __WINNMFMT |
| 16 | |
| 17 | #include "unicode/utypes.h" |
| 18 | |
| 19 | #if U_PLATFORM_USES_ONLY_WIN32_API |
| 20 | |
| 21 | #include "unicode/format.h" |
| 22 | #include "unicode/datefmt.h" |
| 23 | #include "unicode/calendar.h" |
| 24 | #include "unicode/ustring.h" |
| 25 | #include "unicode/locid.h" |
| 26 | |
| 27 | #if !UCONFIG_NO_FORMATTING |
| 28 | |
| 29 | /** |
| 30 | * \file |
| 31 | * \brief C++ API: Format numbers using Windows API. |
| 32 | */ |
| 33 | |
| 34 | U_NAMESPACE_BEGIN |
| 35 | |
| 36 | union FormatInfo; |
| 37 | |
| 38 | class Win32NumberFormat : public NumberFormat |
| 39 | { |
| 40 | public: |
| 41 | Win32NumberFormat(const Locale &locale, UBool currency, UErrorCode &status); |
| 42 | |
| 43 | Win32NumberFormat(const Win32NumberFormat &other); |
| 44 | |
| 45 | virtual ~Win32NumberFormat(); |
| 46 | |
| 47 | virtual Win32NumberFormat *clone() const; |
| 48 | |
| 49 | Win32NumberFormat &operator=(const Win32NumberFormat &other); |
| 50 | |
| 51 | /** |
| 52 | * Format a double number. Concrete subclasses must implement |
| 53 | * these pure virtual methods. |
| 54 | * |
| 55 | * @param number The value to be formatted. |
| 56 | * @param appendTo Output parameter to receive result. |
| 57 | * Result is appended to existing contents. |
| 58 | * @param pos On input: an alignment field, if desired. |
| 59 | * On output: the offsets of the alignment field. |
| 60 | * @return Reference to 'appendTo' parameter. |
| 61 | */ |
| 62 | virtual UnicodeString& format(double number, |
| 63 | UnicodeString& appendTo, |
| 64 | FieldPosition& pos) const; |
| 65 | /** |
| 66 | * Format a long number. Concrete subclasses must implement |
| 67 | * these pure virtual methods. |
| 68 | * |
| 69 | * @param number The value to be formatted. |
| 70 | * @param appendTo Output parameter to receive result. |
| 71 | * Result is appended to existing contents. |
| 72 | * @param pos On input: an alignment field, if desired. |
| 73 | * On output: the offsets of the alignment field. |
| 74 | * @return Reference to 'appendTo' parameter. |
| 75 | */ |
| 76 | virtual UnicodeString& format(int32_t number, |
| 77 | UnicodeString& appendTo, |
| 78 | FieldPosition& pos) const; |
| 79 | |
| 80 | /** |
| 81 | * Format an int64 number. |
| 82 | * |
| 83 | * @param number The value to be formatted. |
| 84 | * @param appendTo Output parameter to receive result. |
| 85 | * Result is appended to existing contents. |
| 86 | * @param pos On input: an alignment field, if desired. |
| 87 | * On output: the offsets of the alignment field. |
| 88 | * @return Reference to 'appendTo' parameter. |
| 89 | */ |
| 90 | virtual UnicodeString& format(int64_t number, |
| 91 | UnicodeString& appendTo, |
| 92 | FieldPosition& pos) const; |
| 93 | |
| 94 | using NumberFormat::format; |
| 95 | |
| 96 | // Use the default behavior for the following. |
| 97 | // virtual UnicodeString &format(double number, UnicodeString &appendTo) const; |
| 98 | // virtual UnicodeString &format(int32_t number, UnicodeString &appendTo) const; |
| 99 | // virtual UnicodeString &format(int64_t number, UnicodeString &appendTo) const; |
| 100 | |
| 101 | virtual void parse(const UnicodeString& text, Formattable& result, ParsePosition& parsePosition) const; |
| 102 | |
| 103 | /** |
| 104 | * Sets the maximum number of digits allowed in the fraction portion of a |
| 105 | * number. maximumFractionDigits must be >= minimumFractionDigits. If the |
| 106 | * new value for maximumFractionDigits is less than the current value |
| 107 | * of minimumFractionDigits, then minimumFractionDigits will also be set to |
| 108 | * the new value. |
| 109 | * @param newValue the new value to be set. |
| 110 | * @see getMaximumFractionDigits |
| 111 | */ |
| 112 | virtual void setMaximumFractionDigits(int32_t newValue); |
| 113 | |
| 114 | /** |
| 115 | * Sets the minimum number of digits allowed in the fraction portion of a |
| 116 | * number. minimumFractionDigits must be <= maximumFractionDigits. If the |
| 117 | * new value for minimumFractionDigits exceeds the current value |
| 118 | * of maximumFractionDigits, then maximumIntegerDigits will also be set to |
| 119 | * the new value |
| 120 | * @param newValue the new value to be set. |
| 121 | * @see getMinimumFractionDigits |
| 122 | */ |
| 123 | virtual void setMinimumFractionDigits(int32_t newValue); |
| 124 | |
| 125 | /** |
| 126 | * Return the class ID for this class. This is useful only for comparing to |
| 127 | * a return value from getDynamicClassID(). For example: |
| 128 | * <pre> |
| 129 | * . Base* polymorphic_pointer = createPolymorphicObject(); |
| 130 | * . if (polymorphic_pointer->getDynamicClassID() == |
| 131 | * . derived::getStaticClassID()) ... |
| 132 | * </pre> |
| 133 | * @return The class ID for all objects of this class. |
| 134 | */ |
| 135 | U_I18N_API static UClassID U_EXPORT2 getStaticClassID(void); |
| 136 | |
| 137 | /** |
| 138 | * Returns a unique class ID POLYMORPHICALLY. Pure virtual override. This |
| 139 | * method is to implement a simple version of RTTI, since not all C++ |
| 140 | * compilers support genuine RTTI. Polymorphic operator==() and clone() |
| 141 | * methods call this method. |
| 142 | * |
| 143 | * @return The class ID for this object. All objects of a |
| 144 | * given class have the same class ID. Objects of |
| 145 | * other classes have different class IDs. |
| 146 | */ |
| 147 | virtual UClassID getDynamicClassID(void) const; |
| 148 | |
| 149 | private: |
| 150 | UnicodeString &format(int32_t numDigits, UnicodeString &appendTo, const wchar_t *format, ...) const; |
| 151 | |
| 152 | UBool fCurrency; |
| 153 | Locale fLocale; |
| 154 | int32_t fLCID; |
| 155 | FormatInfo *fFormatInfo; |
| 156 | UBool fFractionDigitsSet; |
| 157 | |
| 158 | UnicodeString* fWindowsLocaleName; // Stores the equivalent Windows locale name. |
| 159 | }; |
| 160 | |
| 161 | U_NAMESPACE_END |
| 162 | |
| 163 | #endif /* #if !UCONFIG_NO_FORMATTING */ |
| 164 | |
| 165 | #endif // U_PLATFORM_USES_ONLY_WIN32_API |
| 166 | |
| 167 | #endif // __WINNMFMT |