include/wx/cocoa/ObjcPose.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/cocoa/ObjcPose.h
   3 // Purpose:     Macros for initializing poseAs, among other things
   4 // Author:      David Elliott
   5 // Modified by:
   6 // Created:     2002/12/03
   7 // RCS-ID:      $Id:
   8 // Copyright:   (c) 2002 David Elliott <dfe@cox.net>
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef __WX_COCOA_PRIVATE_POSER_H__
  13 #define __WX_COCOA_PRIVATE_POSER_H__
  14
  15 /*-------------------------------------------------------------------------
  16 Objective-C Poser class initialization
  17 -------------------------------------------------------------------------*/
  18 #ifdef __OBJC__
  19 #import <objc/objc-class.h>
  20
  21 class wxPoseAsInitializer
  22 {
  23 public:
  24         wxPoseAsInitializer(Class poser)
  25         : m_poser(poser)
  26         , m_next(sm_first)
  27         {
  28                 sm_first = this;
  29         }
  30         ~wxPoseAsInitializer()
  31         {
  32                 class_poseAs(m_poser,m_poser->super_class);
  33                 sm_first = m_next;
  34         }
  35         static void InitializePosers()
  36         {
  37                 while(sm_first)
  38                 {
  39                         delete sm_first;
  40                 }
  41         };
  42 protected:
  43         Class m_poser;
  44         wxPoseAsInitializer *m_next;
  45         static wxPoseAsInitializer *sm_first;
  46 };
  47
  48 class wxDummyForPoseAsInitializer
  49 {
  50 public:
  51         wxDummyForPoseAsInitializer(void*) {}
  52 };
  53
  54 #define WX_IMPLEMENT_POSER(poser) \
  55 wxDummyForPoseAsInitializer wxDummyPoseAsInitializerFor##poser(new wxPoseAsInitializer([poser class]))
  56
  57 #else // __OBJC__
  58 #warning "Objective-C++ Only!"
  59 #endif // __OBJC__
  60
  61 #endif // __WX_COCOA_PRIVATE_POSER_H__
  62