Aspect.hpp

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#ifndef DART_COMMON_ASPECT_HPP_
#define DART_COMMON_ASPECT_HPP_
 
#include <string>
 
#include "dart/common/Cloneable.hpp"
#include "dart/common/detail/NoOp.hpp"
 
namespace dart {
namespace common {
 
class Composite;
 
class Aspect
{
public:
 
  friend class Composite;
 
  class State : public Cloneable<State> { };
 
  template <class Mixin>
  using MakeState = MakeCloneable<State, Mixin>;
 
  class Properties : public Cloneable<Properties> { };
 
  template <class Mixin>
  using MakeProperties = MakeCloneable<Properties, Mixin>;
 
  virtual ~Aspect() = default;
 
  virtual std::unique_ptr<Aspect> cloneAspect() const = 0;
 
  virtual void setAspectState(const State& otherState);
 
  virtual const State* getAspectState() const;
 
  virtual void setAspectProperties(const Properties& someProperties);
 
  virtual const Properties* getAspectProperties() const;
 
protected:
 
  virtual void setComposite(Composite* newComposite);
 
  virtual void loseComposite(Composite* oldComposite);
};
 
//==============================================================================
template <class CompositeType>
class CompositeTrackingAspect : public Aspect
{
public:
 
  CompositeTrackingAspect();
 
  CompositeType* getComposite();
 
  const CompositeType* getComposite() const;
 
  bool hasComposite() const;
 
protected:
 
  void setComposite(Composite* newComposite) override;
 
  void loseComposite(Composite* oldComposite) override;
 
  CompositeType* mComposite;
 
};
 
} // namespace common
} // namespace dart
 
//==============================================================================
#define DART_COMMON_ASPECT_PROPERTY_CONSTRUCTOR( ClassName, UpdatePropertiesMacro )\
  ClassName (const ClassName &) = delete;\
  inline ClassName (const PropertiesData& properties = PropertiesData())\
    : AspectWithVersionedProperties< Base, Derived, PropertiesData, CompositeType, UpdatePropertiesMacro>(properties) { }
 
//==============================================================================
#define DART_COMMON_ASPECT_STATE_PROPERTY_CONSTRUCTORS(ClassName)\
  ClassName (const ClassName &) = delete;\
  inline ClassName (const StateData& state = StateData(), const PropertiesData& properties = PropertiesData())\
    : AspectImpl(state, properties) { }\
  inline ClassName (const PropertiesData& properties, const StateData state = StateData())\
    : AspectImpl(properties, state) { }
 
//==============================================================================
#define DART_COMMON_SET_ASPECT_PROPERTY_CUSTOM( Type, Name, Update )\
  inline void set ## Name (const Type & value)\
  { mProperties.m ## Name = value; Update(); }
 
//==============================================================================
#define DART_COMMON_SET_ASPECT_PROPERTY( Type, Name )\
  DART_COMMON_SET_ASPECT_PROPERTY_CUSTOM( Type, Name, notifyPropertiesUpdated )
 
//==============================================================================
#define DART_COMMON_GET_ASPECT_PROPERTY( Type, Name )\
  inline const Type& get ## Name () const\
  { return mProperties.m ## Name; }
 
//==============================================================================
#define DART_COMMON_SET_GET_ASPECT_PROPERTY( Type, Name )\
  DART_COMMON_SET_ASPECT_PROPERTY( Type, Name )\
  DART_COMMON_GET_ASPECT_PROPERTY( Type, Name )
 
#include "dart/common/detail/Aspect.hpp"
 
#endif // DART_COMMON_ASPECT_HPP_