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