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 licence
  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 #import <Foundation/NSObjCRuntime.h>
  21
  22 class wxPoseAsInitializer
  23 {
  24 public:
  25     wxPoseAsInitializer()
  26     : m_next(sm_first)
  27     {
  28         sm_first = this;
  29     }
  30     virtual ~wxPoseAsInitializer()
  31     {
  32         sm_first = m_next;
  33     }
  34     static void InitializePosers()
  35     {
  36         while(sm_first)
  37         {
  38             delete sm_first;
  39         }
  40     };
  41 protected:
  42     wxPoseAsInitializer *m_next;
  43     static wxPoseAsInitializer *sm_first;
  44 };
  45
  46 class wxDummyForPoseAsInitializer
  47 {
  48 public:
  49     wxDummyForPoseAsInitializer(void*) {}
  50 };
  51
  52 #define WX_IMPLEMENT_POSER(poser) \
  53 class wxPoseAsInitializerFor##poser: public wxPoseAsInitializer \
  54 { \
  55 protected: \
  56     virtual ~wxPoseAsInitializerFor##poser() \
  57     { \
  58         class_poseAs([poser class],[poser superclass]); \
  59     } \
  60 }; \
  61 wxDummyForPoseAsInitializer wxDummyPoseAsInitializerFor##poser(new wxPoseAsInitializerFor##poser)
  62
  63 #else // __OBJC__
  64 #warning "Objective-C++ Only!"
  65 #endif // __OBJC__
  66
  67 #endif // __WX_COCOA_PRIVATE_POSER_H__