ObjcAssociate.h 3.0 KB

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  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. // Copyright: (c) 2002 David Elliott <dfe@cox.net>
  8. // Licence: wxWindows licence
  9. /////////////////////////////////////////////////////////////////////////////
  10. #ifndef __WX_COCOA_OBJC_ASSOCIATE_H__
  11. #define __WX_COCOA_OBJC_ASSOCIATE_H__
  12. /*-------------------------------------------------------------------------
  13. Basic hashmap stuff, used by everything
  14. -------------------------------------------------------------------------*/
  15. #define WX_DECLARE_OBJC_HASHMAP(ObjcClass) \
  16. class wxCocoa##ObjcClass; \
  17. WX_DECLARE_HASH_MAP(WX_##ObjcClass,wxCocoa##ObjcClass*,wxPointerHash,wxPointerEqual,wxCocoa##ObjcClass##Hash)
  18. #define WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  19. public: \
  20. static inline wxCocoa##ObjcClass* GetFromCocoa(WX_##ObjcClass cocoaObjcClass) \
  21. { \
  22. wxCocoa##ObjcClass##Hash::iterator iter = sm_cocoaHash.find(cocoaObjcClass); \
  23. if(iter!=sm_cocoaHash.end()) \
  24. { \
  25. return iter->second; \
  26. } \
  27. return NULL; \
  28. } \
  29. protected: \
  30. static wxCocoa##ObjcClass##Hash sm_cocoaHash;
  31. #define WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  32. wxCocoa##ObjcClass##Hash wxCocoa##ObjcClass::sm_cocoaHash;
  33. /*-------------------------------------------------------------------------
  34. The entire interface, including some boilerplate stuff
  35. -------------------------------------------------------------------------*/
  36. #define WX_DECLARE_OBJC_INTERFACE(ObjcClass) \
  37. WX_DECLARE_OBJC_INTERFACE_HASHMAP(ObjcClass) \
  38. public: \
  39. inline void Associate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
  40. { \
  41. if(cocoaObjcClass) \
  42. sm_cocoaHash.insert(wxCocoa##ObjcClass##Hash::value_type(cocoaObjcClass,this)); \
  43. } \
  44. inline void Disassociate##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
  45. { \
  46. if(cocoaObjcClass) \
  47. sm_cocoaHash.erase(cocoaObjcClass); \
  48. }
  49. #define WX_IMPLEMENT_OBJC_INTERFACE(ObjcClass) \
  50. WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(ObjcClass)
  51. /*-------------------------------------------------------------------------
  52. Stuff to be used by the wxWidgets class (not the Cocoa interface)
  53. -------------------------------------------------------------------------*/
  54. #define WX_DECLARE_COCOA_OWNER(ObjcClass,ObjcBase,ObjcRoot) \
  55. public: \
  56. inline WX_##ObjcClass Get##ObjcClass() { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
  57. inline const WX_##ObjcClass Get##ObjcClass() const { return (WX_##ObjcClass)m_cocoa##ObjcRoot; } \
  58. protected: \
  59. void Set##ObjcClass(WX_##ObjcClass cocoaObjcClass);
  60. #define WX_IMPLEMENT_COCOA_OWNER(wxClass,ObjcClass,ObjcBase,ObjcRoot) \
  61. void wxClass::Set##ObjcClass(WX_##ObjcClass cocoaObjcClass) \
  62. { \
  63. Disassociate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
  64. Set##ObjcBase(cocoaObjcClass); \
  65. Associate##ObjcClass((WX_##ObjcClass)m_cocoa##ObjcRoot); \
  66. }
  67. #endif // __WX_COCOA_OBJC_ASSOCIATE_H__