mlRuntimeType.h

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/*************************************************************************************
**
** Copyright 2007, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#ifndef ML_RUNTIME_TYPE_H
#define ML_RUNTIME_TYPE_H
 
 
//ML-includes
#include "mlUtilsSystem.h"
 
#include <ostream>
 
ML_UTILS_START_NAMESPACE
 
  //-------------------------------------------------------------------------
 
  //-------------------------------------------------------------------------
  class RuntimeType {
  public:
    typedef void* RuntimeTypeCreateCB();
 
    //----------------------------------------------------------
    //----------------------------------------------------------
    ML_UTILS_EXPORT RuntimeType(const RuntimeType   *parent    = nullptr,
                                const char          *className = nullptr,
                                RuntimeTypeCreateCB *callback  = nullptr,
                                const char          *dllName   = nullptr);
 
    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!=nullptr; }
 
    inline void* createInstance() const { return _callback ? (*_callback)() : nullptr; }
 
    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