1/////////////////////////////////////////////////////////////////////////////
2// Name:        wx/cocoa/ObjcAssociate.h
3// Purpose:     Associates an Objective-C class with a C++ class
4// Author:      David Elliott
5// Modified by:
6// Created:     2002/12/03
7// RCS-ID:      $Id: ObjcAssociate.h 42046 2006-10-16 09:30:01Z ABX $
8// Copyright:   (c) 2002 David Elliott <dfe@cox.net>
9// Licence:     wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef __WX_COCOA_OBJC_ASSOCIATE_H__
13#define __WX_COCOA_OBJC_ASSOCIATE_H__
14
15/*-------------------------------------------------------------------------
16Basic hashmap stuff, used by everything
17-------------------------------------------------------------------------*/
18#define WX_DECLARE_OBJC_HASHMAP(ObjcClass) \
19class wxCocoa##ObjcClass; \
20WX_DECLARE_HASH_MAP(WX_##ObjcClass,wxCocoa##ObjcClass*,wxPointerHash,wxPointerEqual,wxCocoa##ObjcClass##Hash)
21
22#define WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
23public: \
24    static inline wxCocoa##ObjcClass* GetFromCocoa(WX_##ObjcClass cocoaObjcClass) \
25    { \
26        wxCocoa##ObjcClass##Hash::iterator iter = sm_cocoaHash.find(cocoaObjcClass); \
27        if(iter!=sm_cocoaHash.end()) \
28        { \
29            return iter->second; \
30        } \
31        return NULL; \
32    } \
33protected: \
34    static wxCocoa##ObjcClass##Hash sm_cocoaHash;
35
36#define WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass) \
37wxCocoa##ObjcClass##Hash wxCocoa##ObjcClass::sm_cocoaHash;
38
39
40/*-------------------------------------------------------------------------
41The entire interface, including some boilerplate stuff
42-------------------------------------------------------------------------*/
43#define WX_DECLARE_OBJC_INTERFACE(ObjcClass) \
44WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
45public: \
46    inline void Associate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
47    { \
48        if(cocoaObjcClass) \
49            sm_cocoaHash.insert(wxCocoa##ObjcClass##Hash::value_type(cocoaObjcClass,this)); \
50    } \
51    inline void Disassociate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
52    { \
53        if(cocoaObjcClass) \
54            sm_cocoaHash.erase(cocoaObjcClass); \
55    }
56
57#define WX_IMPLEMENT_OBJC_INTERFACE(ObjcClass) \
58WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass)
59
60/*-------------------------------------------------------------------------
61Stuff to be used by the wxWidgets class (not the Cocoa interface)
62-------------------------------------------------------------------------*/
63#define WX_DECLARE_COCOA_OWNER(ObjcClass,ObjcBase,ObjcRoot) \
64public: \
65    inline WX_##ObjcClass Get##ObjcClass() { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
66    inline const WX_##ObjcClass Get##ObjcClass() const { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
67protected: \
68    void Set##ObjcClass(WX_##ObjcClass cocoaObjcClass);
69
70#define WX_IMPLEMENT_COCOA_OWNER(wxClass,ObjcClass,ObjcBase,ObjcRoot) \
71void wxClass::Set##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
72{ \
73    Disassociate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
74    Set##ObjcBase(cocoaObjcClass); \
75    Associate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
76}
77
78#endif // __WX_COCOA_OBJC_ASSOCIATE_H__
79