MeVis/Foundation/Sources/MLUtilities/mlRuntimeType.h

Go to the documentation of this file.

// **InsertLicense** code
//-------------------------------------------------------------------------

//-------------------------------------------------------------------------
#ifndef  __mlRuntimeType_H
#define  __mlRuntimeType_H

//ML-includes
#ifndef __mlUtilsSystem_H
#include "mlUtilsSystem.h"
#endif

#include "mlAtomicCounter.h"

ML_UTILS_START_NAMESPACE

  //-------------------------------------------------------------------------

  //-------------------------------------------------------------------------
  class RuntimeType {
  public:
    typedef void* RuntimeTypeCreateCB();

    //----------------------------------------------------------

    //----------------------------------------------------------
    ML_UTILS_EXPORT RuntimeType(const RuntimeType   *parent    = NULL, 
                                const char          *className = NULL,
                                RuntimeTypeCreateCB *callback  = NULL,
                                const char          *dllName   = NULL);

    ML_UTILS_EXPORT ~RuntimeType();

    ML_UTILS_EXPORT bool isDerivedFrom(const RuntimeType* runtimeType) const;

    inline const char* getName() const { return _className ? _className : "BadType"; }

    inline const char* getDllName() const { return _dllName ? _dllName : ""; }

    inline const RuntimeType* getParent() const { return _parent; }

    inline  bool canCreateInstance() const { return _callback!=NULL; }

    inline void* createInstance() const { return _callback ? (*_callback)() : NULL; }

    inline RuntimeTypeCreateCB * getCallback() const { return _callback; }

    inline MLint getId() const { return _id; }


  private:
    char* _className;

    char* _dllName;

    const RuntimeType* _parent;

    MLint _id;             
  
    RuntimeTypeCreateCB* _callback;
  };

ML_UTILS_END_NAMESPACE


//-----------------------------------------------------------------------------------
//   Stream output for std::ostream
//-----------------------------------------------------------------------------------
namespace std {

  inline ostream& operator<<(ostream& s, const ML_UTILS_NAMESPACE::RuntimeType &rt)
  {
    s << "Class: "     
      << " Name    :"  << rt.getName()
      << " DllName :"  << rt.getDllName()
      << " Parent: "   << (rt.getParent() ? rt.getParent()->getName() : "NULL")
      << " Abstract: " << (rt.getCallback() ? "No" : "Yes")
      << std::endl;
    return s;
  }

}

#endif // __mlRuntimeType_H