icuSources/i18n/number_scientific.h

   1 // © 2017 and later: Unicode, Inc. and others.
   2 // License & terms of use: http://www.unicode.org/copyright.html
   3
   4 #include "unicode/utypes.h"
   5
   6 #if !UCONFIG_NO_FORMATTING
   7 #ifndef __NUMBER_SCIENTIFIC_H__
   8 #define __NUMBER_SCIENTIFIC_H__
   9
  10 #include "number_types.h"
  11
  12 U_NAMESPACE_BEGIN namespace number {
  13 namespace impl {
  14
  15 // Forward-declare
  16 class ScientificHandler;
  17
  18 class U_I18N_API ScientificModifier : public UMemory, public Modifier {
  19   public:
  20     ScientificModifier();
  21
  22     void set(int32_t exponent, const ScientificHandler *handler);
  23
  24     int32_t apply(NumberStringBuilder &output, int32_t leftIndex, int32_t rightIndex,
  25                   UErrorCode &status) const U_OVERRIDE;
  26
  27     int32_t getPrefixLength() const U_OVERRIDE;
  28
  29     int32_t getCodePointCount() const U_OVERRIDE;
  30
  31     bool isStrong() const U_OVERRIDE;
  32
  33     bool containsField(UNumberFormatFields field) const U_OVERRIDE;
  34
  35     void getParameters(Parameters& output) const U_OVERRIDE;
  36
  37     bool semanticallyEquivalent(const Modifier& other) const U_OVERRIDE;
  38
  39   private:
  40     int32_t fExponent;
  41     const ScientificHandler *fHandler;
  42 };
  43
  44 class ScientificHandler : public UMemory, public MicroPropsGenerator, public MultiplierProducer {
  45   public:
  46     ScientificHandler(const Notation *notation, const DecimalFormatSymbols *symbols,
  47                       const MicroPropsGenerator *parent);
  48
  49     void
  50     processQuantity(DecimalQuantity &quantity, MicroProps &micros, UErrorCode &status) const U_OVERRIDE;
  51
  52     int32_t getMultiplier(int32_t magnitude) const U_OVERRIDE;
  53
  54   private:
  55     const Notation::ScientificSettings& fSettings;
  56     const DecimalFormatSymbols *fSymbols;
  57     const MicroPropsGenerator *fParent;
  58
  59     friend class ScientificModifier;
  60 };
  61
  62 } // namespace impl
  63 } // namespace number
  64 U_NAMESPACE_END
  65
  66 #endif //__NUMBER_SCIENTIFIC_H__
  67
  68 #endif /* #if !UCONFIG_NO_FORMATTING */