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Modifier.h

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#ifdef __cplusplus

#  ifndef OGS_CORE_MODIFIER_H
#    define OGS_CORE_MODIFIER_H

#    include <string>

#    include <ogs/support/Event.h>
#    include <ogs/support/Object.h>
#    include <ogs/core/Namespace.h>

OGS_BEGIN_CORE_NAMESPACE

class Modifier: public ogs::support::Object {
  public:
    typedef short Value;

    class Event;

    Modifier (Value value = 0);

    Value getValue () const;
    void setValue (Value value);

    std::string toString () const;

  private:
    Value _value;
};

inline
Modifier::Modifier (Value value):
  _value (value) {
  // empty constructor body
}

inline Modifier::Value
Modifier::getValue () const {
  return (this->_value);
}

class Modifier::Event: public ogs::support::Event {
  public:
    Value getPreviousValue () const;

  private:
    Value _value;
    Event (Modifier& modifier);
    friend void Modifier::setValue (Value value);
};

inline
Modifier::Event::Event (Modifier& modifier):
  ogs::support::Event (modifier), _value (modifier.getValue ()) {
  // empty constructor body
}

inline Modifier::Value
Modifier::Event::getPreviousValue () const {
  return (this->_value);
}

OGS_END_CORE_NAMESPACE

#  endif /* !defined OGS_CORE_MODIFIER_H */

#endif /* defined __cplusplus */

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