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 #endif // __OBJC__
  58
  59 /*-------------------------------------------------------------------------
  60 Basic hashmap stuff, used by everything
  61 -------------------------------------------------------------------------*/
  62 #define WX_DECLARE_OBJC_HASHMAP(ObjcClass) \
  63 class wxCocoa##ObjcClass; \
  64 WX_DECLARE_HASH_MAP(WX_##ObjcClass,wxCocoa##ObjcClass*,wxPointerHash,wxPointerEqual,wxCocoa##ObjcClass##Hash)
  65
  66 #define WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  67 public: \
  68     static inline wxCocoa##ObjcClass* GetFromCocoa(WX_##ObjcClass cocoaObjcClass) \
  69     { \
  70         wxCocoa##ObjcClass##Hash::iterator iter = sm_cocoaHash.find(cocoaObjcClass); \
  71         if(iter!=sm_cocoaHash.end()) \
  72         { \
  73             return iter->second; \
  74         } \
  75         return NULL; \
  76     } \
  77 protected: \
  78     static wxCocoa##ObjcClass##Hash sm_cocoaHash;
  79
  80 #define WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  81 wxCocoa##ObjcClass##Hash wxCocoa##ObjcClass::sm_cocoaHash;
  82
  83
  84 /*-------------------------------------------------------------------------
  85 The entire interface, including some boilerplate stuff
  86 -------------------------------------------------------------------------*/
  87 #define WX_DECLARE_OBJC_INTERFACE(ObjcClass) \
  88 WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  89 public: \
  90     inline void Associate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
  91     { \
  92         sm_cocoaHash.insert(wxCocoa##ObjcClass##Hash::value_type(cocoaObjcClass,this)); \
  93     } \
  94     inline void Disassociate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
  95     { \
  96         sm_cocoaHash.erase(cocoaObjcClass); \
  97     }
  98
  99 #define WX_IMPLEMENT_OBJC_INTERFACE(ObjcClass) \
 100 WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass)
 101
 102 /*-------------------------------------------------------------------------
 103 Stuff to be used by the wxWindows class (not the Cocoa interface)
 104 -------------------------------------------------------------------------*/
 105 #define WX_DECLARE_COCOA_OWNER(ObjcClass,ObjcBase,ObjcRoot) \
 106 public: \
 107     inline WX_##ObjcClass Get##ObjcClass() { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
 108     inline const WX_##ObjcClass Get##ObjcClass() const { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
 109 protected: \
 110     void Set##ObjcClass(WX_##ObjcClass cocoaObjcClass);
 111
 112 #define WX_IMPLEMENT_COCOA_OWNER(wxClass,ObjcClass,ObjcBase,ObjcRoot) \
 113 void wxClass::Set##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
 114 { \
 115     if(m_cocoa##ObjcRoot) \
 116         Disassociate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
 117     Set##ObjcBase(cocoaObjcClass); \
 118     if(m_cocoa##ObjcRoot) \
 119         Associate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
 120 }
 121
 122 #endif // __WX_COCOA_PRIVATE_POSER_H__
 123