shddel.h

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//----------------------------------------------------------------------------
// ObjectWindows
// Copyright (c) 1991, 1996 by Borland International, All Rights Reserved
//
//
//----------------------------------------------------------------------------
 
#if !defined(OWL_SHDDEL_H)
#define OWL_SHDDEL_H
 
#include <owl/private/defs.h>
#if defined(BI_HAS_PRAGMA_ONCE)
# pragma once
#endif
 
 
 
namespace owl {
 
 
//
/// \class TShouldDelete
// ~~~~~ ~~~~~~~~~~~~~
class TShouldDelete
{
  public:
    enum TDelete { NoDelete, DefDelete, Delete };
    typedef TDelete DeleteType;  // For compatibility
 
    TShouldDelete(TDelete dt = Delete);
 
    bool OwnsElements();
    void OwnsElements(bool del);
    bool DelObj(TDelete dt);
 
  private:
    TDelete ShouldDelete;  ///< Is either Delete or NoDelete
};
 
//----------------------------------------------------------------------------
// Inline implementation
//
 
inline TShouldDelete::TShouldDelete(TDelete dt)
{
  OwnsElements(dt != NoDelete);
}
 
inline bool TShouldDelete::OwnsElements()
{
  return ShouldDelete == Delete;
}
 
inline void TShouldDelete::OwnsElements(bool del)
{
  ShouldDelete = del ? Delete : NoDelete;
}
 
inline bool TShouldDelete::DelObj(TDelete dt)
{
  return dt == Delete || (dt==DefDelete && ShouldDelete==Delete);
}
 
 
} // OWL namespace
 
 
#endif  // OWL_SHDDEL_H