include/wx/mac/carbon/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
  34 public:
  35     wxGDIObject() : m_visible(false) { }
  36     ~wxGDIObject() { }
  37
  38     bool IsNull() const { return (m_refData == 0); }
  39
  40     virtual bool GetVisible() { return m_visible; }
  41     virtual void SetVisible(bool v) { m_visible = v; }
  42
  43 protected:
  44     bool m_visible; // Can a pointer to this object be safely taken?
  45                     // - only if created within FindOrCreate...
  46 };
  47
  48 #endif
  49     // _WX_GDIOBJ_H_