wxWidgets/include/wx/cocoa/gdiobj.h

/////////////////////////////////////////////////////////////////////////////
// Name:        gdiobj.h
// Purpose:     wxGDIObject class: base class for other GDI classes
// Author:      David Elliott <dfe@cox.net>
// Modified by:
// Created:     2002/11/27
// RCS-ID:      
// Copyright:   (c) AUTHOR
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef _WX_GDIOBJ_H_
#define _WX_GDIOBJ_H_

#include "wx/object.h"

class WXDLLEXPORT wxGDIRefData: public wxObjectRefData {
public:
    inline wxGDIRefData()
	{
 	}
};

#define M_GDIDATA ((wxGDIRefData *)m_refData)

class WXDLLEXPORT wxGDIObject: public wxObject
{
DECLARE_DYNAMIC_CLASS(wxGDIObject)
 public:
  wxGDIObject() : m_visible(FALSE) { }
  ~wxGDIObject() { }

  bool IsNull() const { return (m_refData == 0); }

  virtual bool GetVisible() { return m_visible; }
  virtual void SetVisible(bool v) { m_visible = v; }

protected:
  bool m_visible; // Can a pointer to this object be safely taken?
                 // - only if created within FindOrCreate...
};

#endif
    // _WX_GDIOBJ_H_