include/wx/mac/classic/gdiobj.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        gdiobj.h
   3 // Purpose:     wxGDIObject class: base class for other GDI classes
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_GDIOBJ_H_
  13 #define _WX_GDIOBJ_H_
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16 #pragma interface "gdiobj.h"
  17 #endif
  18
  19 #include "wx/object.h"
  20
  21 class WXDLLEXPORT wxGDIRefData: public wxObjectRefData {
  22 public:
  23     inline wxGDIRefData()
  24     {
  25      }
  26 };
  27
  28 #define M_GDIDATA ((wxGDIRefData *)m_refData)
  29
  30 class WXDLLEXPORT wxGDIObject: public wxObject
  31 {
  32 DECLARE_DYNAMIC_CLASS(wxGDIObject)
  33  public:
  34   wxGDIObject() : m_visible(FALSE) { }
  35   ~wxGDIObject() { }
  36
  37   bool IsNull() const { return (m_refData == 0); }
  38
  39   virtual bool GetVisible() { return m_visible; }
  40   virtual void SetVisible(bool v) { m_visible = v; }
  41
  42 protected:
  43   bool m_visible; // Can a pointer to this object be safely taken?
  44                  // - only if created within FindOrCreate...
  45 };
  46
  47 #endif
  48     // _WX_GDIOBJ_H_