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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/xtihandler.h | |
3 | // Purpose: XTI handlers | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: Francesco Montorsi | |
6 | // Created: 27/07/03 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) 1997 Julian Smart | |
9 | // (c) 2003 Stefan Csomor | |
10 | // Licence: wxWindows licence | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | ||
13 | #ifndef _XTIHANDLER_H_ | |
14 | #define _XTIHANDLER_H_ | |
15 | ||
16 | #include "wx/defs.h" | |
17 | ||
18 | #if wxUSE_EXTENDED_RTTI | |
19 | ||
20 | #include "wx/xti.h" | |
21 | ||
22 | // copied from event.h which cannot be included at this place | |
23 | ||
24 | class WXDLLIMPEXP_FWD_BASE wxEvent; | |
25 | ||
26 | #ifdef __VISUALC__ | |
27 | #define wxMSVC_FWD_MULTIPLE_BASES __multiple_inheritance | |
28 | #else | |
29 | #define wxMSVC_FWD_MULTIPLE_BASES | |
30 | #endif | |
31 | ||
32 | class WXDLLIMPEXP_FWD_BASE wxMSVC_FWD_MULTIPLE_BASES wxEvtHandler; | |
33 | typedef void (wxEvtHandler::*wxEventFunction)(wxEvent&); | |
34 | typedef wxEventFunction wxObjectEventFunction; | |
35 | ||
36 | // ---------------------------------------------------------------------------- | |
37 | // Handler Info | |
38 | // | |
39 | // this describes an event sink | |
40 | // ---------------------------------------------------------------------------- | |
41 | ||
42 | class WXDLLIMPEXP_BASE wxHandlerInfo | |
43 | { | |
44 | friend class WXDLLIMPEXP_BASE wxDynamicClassInfo; | |
45 | ||
46 | public: | |
47 | wxHandlerInfo(wxHandlerInfo* &iter, | |
48 | wxClassInfo* itsClass, | |
49 | const wxString& name, | |
50 | wxObjectEventFunction address, | |
51 | const wxClassInfo* eventClassInfo) : | |
52 | m_eventFunction(address), | |
53 | m_name(name), | |
54 | m_eventClassInfo(eventClassInfo), | |
55 | m_itsClass(itsClass) | |
56 | { | |
57 | Insert(iter); | |
58 | } | |
59 | ||
60 | ~wxHandlerInfo() | |
61 | { Remove(); } | |
62 | ||
63 | // return the name of this handler | |
64 | const wxString& GetName() const { return m_name; } | |
65 | ||
66 | // return the class info of the event | |
67 | const wxClassInfo *GetEventClassInfo() const { return m_eventClassInfo; } | |
68 | ||
69 | // get the handler function pointer | |
70 | wxObjectEventFunction GetEventFunction() const { return m_eventFunction; } | |
71 | ||
72 | // returns NULL if this is the last handler of this class | |
73 | wxHandlerInfo* GetNext() const { return m_next; } | |
74 | ||
75 | // return the class this property is declared in | |
76 | const wxClassInfo* GetDeclaringClass() const { return m_itsClass; } | |
77 | ||
78 | private: | |
79 | ||
80 | // inserts this handler at the end of the linked chain which begins | |
81 | // with "iter" handler. | |
82 | void Insert(wxHandlerInfo* &iter); | |
83 | ||
84 | // removes this handler from the linked chain of the m_itsClass handlers. | |
85 | void Remove(); | |
86 | ||
87 | wxObjectEventFunction m_eventFunction; | |
88 | wxString m_name; | |
89 | const wxClassInfo* m_eventClassInfo; | |
90 | wxHandlerInfo* m_next; | |
91 | wxClassInfo* m_itsClass; | |
92 | }; | |
93 | ||
94 | #define wxHANDLER(name,eventClassType) \ | |
95 | static wxHandlerInfo _handlerInfo##name( first, class_t::GetClassInfoStatic(), \ | |
96 | wxT(#name), (wxObjectEventFunction) (wxEventFunction) &name, \ | |
97 | CLASSINFO( eventClassType ) ); | |
98 | ||
99 | #define wxBEGIN_HANDLERS_TABLE(theClass) \ | |
100 | wxHandlerInfo *theClass::GetHandlersStatic() \ | |
101 | { \ | |
102 | typedef theClass class_t; \ | |
103 | static wxHandlerInfo* first = NULL; | |
104 | ||
105 | #define wxEND_HANDLERS_TABLE() \ | |
106 | return first; } | |
107 | ||
108 | #define wxEMPTY_HANDLERS_TABLE(theClass) \ | |
109 | wxBEGIN_HANDLERS_TABLE(theClass) \ | |
110 | wxEND_HANDLERS_TABLE() | |
111 | ||
112 | #endif // wxUSE_EXTENDED_RTTI | |
113 | #endif // _XTIHANDLER_H_ |