107 lines
3.3 KiB
C++
107 lines
3.3 KiB
C++
// © 2017 and later: Unicode, Inc. and others.
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// License & terms of use: http://www.unicode.org/copyright.html
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#include "unicode/utypes.h"
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#if !UCONFIG_NO_FORMATTING
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#ifndef __NUMBER_ASFORMAT_H__
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#define __NUMBER_ASFORMAT_H__
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#include "unicode/numberformatter.h"
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#include "number_types.h"
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#include "number_decimalquantity.h"
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#include "number_scientific.h"
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#include "number_patternstring.h"
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#include "number_modifiers.h"
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#include "number_multiplier.h"
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#include "number_roundingutils.h"
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#include "decNumber.h"
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#include "charstr.h"
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U_NAMESPACE_BEGIN namespace number {
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namespace impl {
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/**
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* A wrapper around LocalizedNumberFormatter implementing the Format interface, enabling improved
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* compatibility with other APIs.
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*
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* @see NumberFormatter
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*/
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class U_I18N_API LocalizedNumberFormatterAsFormat : public Format {
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public:
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LocalizedNumberFormatterAsFormat(const LocalizedNumberFormatter& formatter, const Locale& locale);
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/**
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* Destructor.
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*/
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~LocalizedNumberFormatterAsFormat() U_OVERRIDE;
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/**
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* Equals operator.
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*/
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bool operator==(const Format& other) const U_OVERRIDE;
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/**
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* Creates a copy of this object.
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*/
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LocalizedNumberFormatterAsFormat* clone() const U_OVERRIDE;
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/**
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* Formats a Number using the wrapped LocalizedNumberFormatter. The provided formattable must be a
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* number type.
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*/
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UnicodeString& format(const Formattable& obj, UnicodeString& appendTo, FieldPosition& pos,
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UErrorCode& status) const U_OVERRIDE;
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/**
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* Formats a Number using the wrapped LocalizedNumberFormatter. The provided formattable must be a
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* number type.
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*/
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UnicodeString& format(const Formattable& obj, UnicodeString& appendTo, FieldPositionIterator* posIter,
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UErrorCode& status) const U_OVERRIDE;
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/**
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* Not supported: sets an error index and returns.
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*/
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void parseObject(const UnicodeString& source, Formattable& result,
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ParsePosition& parse_pos) const U_OVERRIDE;
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/**
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* Gets the LocalizedNumberFormatter that this wrapper class uses to format numbers.
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*
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* For maximum efficiency, this function returns by const reference. You must copy the return value
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* into a local variable if you want to use it beyond the lifetime of the current object:
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*
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* <pre>
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* LocalizedNumberFormatter localFormatter = fmt->getNumberFormatter();
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* </pre>
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*
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* You can however use the return value directly when chaining:
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*
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* <pre>
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* FormattedNumber result = fmt->getNumberFormatter().formatDouble(514.23, status);
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* </pre>
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*
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* @return The unwrapped LocalizedNumberFormatter.
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*/
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const LocalizedNumberFormatter& getNumberFormatter() const;
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UClassID getDynamicClassID() const U_OVERRIDE;
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static UClassID U_EXPORT2 getStaticClassID();
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private:
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LocalizedNumberFormatter fFormatter;
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// Even though the locale is inside the LocalizedNumberFormatter, we have to keep it here, too, because
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// LocalizedNumberFormatter doesn't have a getLocale() method, and ICU-TC didn't want to add one.
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Locale fLocale;
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};
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} // namespace impl
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} // namespace number
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U_NAMESPACE_END
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#endif // __NUMBER_ASFORMAT_H__
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#endif /* #if !UCONFIG_NO_FORMATTING */
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