111 lines
3.2 KiB
C++
111 lines
3.2 KiB
C++
/*
|
|
*******************************************************************************
|
|
* Copyright (C) 2015, International Business Machines
|
|
* Corporation and others. All Rights Reserved.
|
|
*******************************************************************************
|
|
* digitgrouping.h
|
|
*
|
|
* created on: 2015jan6
|
|
* created by: Travis Keep
|
|
*/
|
|
|
|
#ifndef __DIGITGROUPING_H__
|
|
#define __DIGITGROUPING_H__
|
|
|
|
#include "unicode/uobject.h"
|
|
#include "unicode/utypes.h"
|
|
|
|
U_NAMESPACE_BEGIN
|
|
|
|
class IntDigitCountRange;
|
|
|
|
/**
|
|
* The digit grouping policy.
|
|
*/
|
|
class U_I18N_API DigitGrouping : public UMemory {
|
|
public:
|
|
/**
|
|
* Default is no digit grouping.
|
|
*/
|
|
DigitGrouping() : fGrouping(0), fGrouping2(0), fMinGrouping(0) { }
|
|
|
|
/**
|
|
* Returns TRUE if this object is equal to rhs.
|
|
*/
|
|
UBool equals(const DigitGrouping &rhs) const {
|
|
return ((fGrouping == rhs.fGrouping) &&
|
|
(fGrouping2 == rhs.fGrouping2) &&
|
|
(fMinGrouping == rhs.fMinGrouping));
|
|
}
|
|
|
|
/**
|
|
* Returns true if a separator is needed after a particular digit.
|
|
* @param digitsLeftOfDecimal the total count of digits left of the
|
|
* decimal.
|
|
* @param digitPos 0 is the one's place; 1 is the 10's place; -1 is the
|
|
* 1/10's place etc.
|
|
*/
|
|
UBool isSeparatorAt(int32_t digitsLeftOfDecimal, int32_t digitPos) const;
|
|
|
|
/**
|
|
* Returns the total number of separators to be used to format a particular
|
|
* number.
|
|
* @param digitsLeftOfDecimal the total number of digits to the left of
|
|
* the decimal.
|
|
*/
|
|
int32_t getSeparatorCount(int32_t digitsLeftOfDecimal) const;
|
|
|
|
/**
|
|
* Returns true if grouping is used FALSE otherwise. When
|
|
* isGroupingUsed() returns FALSE; isSeparatorAt always returns FALSE
|
|
* and getSeparatorCount always returns 0.
|
|
*/
|
|
UBool isGroupingUsed() const { return fGrouping > 0; }
|
|
|
|
/**
|
|
* Returns TRUE if this instance would not add grouping separators
|
|
* when formatting value using the given constraint on digit count.
|
|
*
|
|
* @param value the value to format.
|
|
* @param range the minimum and maximum digits for formatting value.
|
|
*/
|
|
UBool isNoGrouping(
|
|
int32_t positiveValue, const IntDigitCountRange &range) const;
|
|
|
|
/**
|
|
* Clears this instance so that digit grouping is not in effect.
|
|
*/
|
|
void clear();
|
|
|
|
public:
|
|
|
|
/**
|
|
* Primary grouping size. A value of 0, the default, or a negative
|
|
* number causes isGroupingUsed() to return FALSE.
|
|
*/
|
|
int32_t fGrouping;
|
|
|
|
/**
|
|
* Secondary grouping size. If > 0, this size is used instead of
|
|
* 'fGrouping' for all but the group just to the left of the decimal
|
|
* point. The default value of 0, or a negative value indicates that
|
|
* there is no secondary grouping size.
|
|
*/
|
|
int32_t fGrouping2;
|
|
|
|
/**
|
|
* If set (that is > 0), uses no grouping separators if fewer than
|
|
* (fGrouping + fMinGrouping) digits appear left of the decimal place.
|
|
* The default value for this field is 0.
|
|
*/
|
|
int32_t fMinGrouping;
|
|
private:
|
|
UBool isGroupingEnabled(int32_t digitsLeftOfDecimal) const;
|
|
int32_t getGrouping2() const;
|
|
int32_t getMinGrouping() const;
|
|
};
|
|
|
|
U_NAMESPACE_END
|
|
|
|
#endif // __DIGITGROUPING_H__
|