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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: object.h | |
3 | // Purpose: wxObject class, plus run-time type information macros | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifndef __OBJECTH__ | |
13 | #define __OBJECTH__ | |
14 | ||
15 | #ifdef __GNUG__ | |
0d3820b3 | 16 | #pragma interface "object.h" |
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17 | #endif |
18 | ||
19 | #include "wx/defs.h" | |
20 | ||
21 | class WXDLLEXPORT wxObject; | |
22 | ||
23 | #if USE_DYNAMIC_CLASSES | |
24 | ||
25 | #ifdef __GNUWIN32__ | |
26 | #ifdef GetClassName | |
27 | #undef GetClassName | |
28 | #endif | |
29 | #endif | |
30 | ||
31 | class WXDLLEXPORT wxClassInfo; | |
32 | ||
33 | class WXDLLIMPORT istream; | |
34 | class WXDLLIMPORT ostream; | |
35 | ||
36 | /* | |
37 | * Dynamic object system declarations | |
38 | */ | |
39 | ||
40 | typedef wxObject * (*wxObjectConstructorFn) (void); | |
41 | ||
42 | #ifdef USE_STORABLE_CLASSES | |
43 | typedef wxObject* (*wxStorableConstructorFn) ( istream &stream, char *data ); | |
44 | #endif | |
45 | ||
46 | class WXDLLEXPORT wxClassInfo | |
47 | { | |
48 | public: | |
49 | char *className; | |
50 | char *baseClassName1; | |
51 | char *baseClassName2; | |
52 | int objectSize; | |
53 | wxObjectConstructorFn objectConstructor; | |
54 | ||
55 | #ifdef USE_STORABLE_CLASSES | |
56 | wxStorableConstructorFn storableConstructor; | |
57 | #endif | |
58 | ||
59 | // Pointers to base wxClassInfos: set in InitializeClasses | |
60 | // called from wx_main.cc | |
61 | wxClassInfo *baseInfo1; | |
62 | wxClassInfo *baseInfo2; | |
63 | ||
64 | static wxClassInfo *first; | |
65 | wxClassInfo *next; | |
66 | ||
67 | #ifdef USE_STORABLE_CLASSES | |
68 | wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn fn, | |
69 | wxStorableConstructorFn stoFn = NULL ); | |
70 | #else | |
71 | wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn fn); | |
72 | #endif | |
73 | ||
74 | wxObject *CreateObject(void); | |
75 | ||
76 | #ifdef USE_STORABLE_CLASSES | |
77 | wxObject* CreateObject( istream &stream, char *data ); | |
78 | #endif | |
79 | ||
80 | inline char *GetClassName(void) const { return className; } | |
81 | inline char *GetBaseClassName1(void) const { return baseClassName1; } | |
82 | inline char *GetBaseClassName2(void) const { return baseClassName2; } | |
83 | inline int GetSize(void) const { return objectSize; } | |
84 | bool IsKindOf(wxClassInfo *info); | |
85 | ||
86 | static wxClassInfo *FindClass(char *c); | |
87 | // Initializes parent pointers for fast searching. | |
88 | static void InitializeClasses(void); | |
89 | }; | |
90 | ||
91 | wxObject* WXDLLEXPORT wxCreateDynamicObject(char *name); | |
92 | ||
93 | #ifdef USE_STORABLE_CLASSES | |
94 | wxObject* WXDLLEXPORT wxCreateStoredObject( char *name, istream &stream, char *data ); | |
95 | #endif | |
96 | ||
97 | #define DECLARE_DYNAMIC_CLASS(name) \ | |
98 | public:\ | |
99 | static wxClassInfo class##name;\ | |
100 | wxClassInfo *GetClassInfo() \ | |
101 | { return &name::class##name; } | |
102 | ||
103 | #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name) | |
104 | #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name) | |
105 | ||
106 | #ifdef USE_STORABLE_CLASSES | |
107 | #define DECLARE_STORABLECLASS(name) DECLARE_DYNAMIC_CLASS(name) | |
108 | #endif | |
109 | ||
110 | ////// | |
111 | ////// for concrete classes | |
112 | ////// | |
113 | ||
114 | // Single inheritance with one base class | |
115 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) \ | |
116 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ | |
117 | { return new name; }\ | |
118 | wxClassInfo name::class##name(#name, #basename, NULL, sizeof(name), wxConstructorFor##name); | |
119 | ||
120 | // Multiple inheritance with two base classes | |
121 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \ | |
122 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ | |
123 | { return new name; }\ | |
124 | wxClassInfo name::class##name(#name, #basename1, #basename2, sizeof(name), wxConstructorFor##name); | |
125 | ||
126 | ////// | |
127 | ////// for storable classes | |
128 | ////// | |
129 | ||
130 | #ifdef USE_STORABLE_CLASSES | |
131 | ||
132 | #define IMPLEMENT_STORABLE_CLASS(name, basename) \ | |
cf447356 | 133 | wxObject* WXDLLEXPORT_CTORFN wxStorableConstructorFor##name( istream* stream, char* data )\ |
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134 | { return new name( stream, data ); }\ |
135 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void)\ | |
136 | { return new name; }\ | |
137 | wxClassInfo name::class##name(#name, #basename, NULL, sizeof(name), wxConstructorFor##name,\ | |
138 | wxStorableConstructorFor##name ); | |
139 | ||
140 | #define IMPLEMENT_STORABLE_CLASS2(name, basename1, basename2) \ | |
cf447356 | 141 | wxObject* WXDLLEXPORT_CTORFN wxStorableConstructorFor##name( istream* stream, char* data )\ |
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142 | { return new name( stream, data ); }\ |
143 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void)\ | |
144 | { return new name; }\ | |
145 | wxClassInfo name::class##name(#name, #basename1, basename2, sizeof(name), wxConstructorFor##name,\ | |
146 | wxStorableConstructorFor##name ); | |
147 | ||
148 | #endif | |
149 | ||
150 | ////// | |
151 | ////// for abstract classes | |
152 | ////// | |
153 | ||
154 | // Single inheritance with one base class | |
155 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) \ | |
156 | wxClassInfo name::class##name(#name, #basename, NULL, sizeof(name), NULL); | |
157 | ||
158 | // Multiple inheritance with two base classes | |
159 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \ | |
160 | wxClassInfo name::class##name(#name, #basename1, #basename2, sizeof(name), NULL); | |
161 | ||
162 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS | |
163 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 | |
164 | ||
165 | #define CLASSINFO(name) (&name::class##name) | |
166 | ||
167 | #else | |
168 | ||
169 | // No dynamic class system: so stub out the macros | |
170 | #define DECLARE_DYNAMIC_CLASS(name) | |
171 | #define DECLARE_ABSTRACT_CLASS(name) | |
172 | #define DECLARE_CLASS(name) | |
173 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) | |
174 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) | |
175 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) | |
176 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) | |
177 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS | |
178 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 | |
179 | ||
180 | #endif | |
181 | ||
182 | #define IS_KIND_OF(obj, className) obj->IsKindOf(&className::class##name) | |
183 | ||
184 | // Unfortunately Borland seems to need this include. | |
185 | #ifdef __BORLANDC__ | |
186 | #if USE_IOSTREAMH | |
187 | #include <iostream.h> | |
188 | #else | |
189 | #include <iostream> | |
190 | #endif | |
191 | #endif | |
192 | ||
193 | class WXDLLEXPORT wxObjectRefData; | |
194 | ||
195 | class WXDLLEXPORT wxObject | |
196 | { | |
197 | public: | |
198 | ||
199 | // This is equivalent to using the macro DECLARE_ABSTRACT_CLASS | |
200 | static wxClassInfo classwxObject; | |
201 | ||
202 | wxObject(void); | |
203 | virtual ~wxObject(void); | |
204 | ||
205 | virtual wxClassInfo *GetClassInfo(void) { return &classwxObject; } | |
206 | ||
207 | bool IsKindOf(wxClassInfo *info); | |
208 | ||
b2aef89b | 209 | #if WXDEBUG && USE_MEMORY_TRACING |
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210 | void * operator new (size_t size, char * fileName = NULL, int lineNum = 0); |
211 | void operator delete (void * buf); | |
212 | ||
213 | // Cause problems for VC++ | |
214 | #ifndef _MSC_VER | |
215 | void * operator new[] (size_t size, char * fileName = NULL, int lineNum = 0); | |
216 | void operator delete[] (void * buf); | |
217 | #endif | |
218 | ||
219 | #endif | |
220 | ||
3e1a3a40 | 221 | #if WXDEBUG || USE_DEBUG_CONTEXT |
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222 | virtual void Dump(ostream& str); |
223 | #endif | |
224 | ||
225 | #ifdef USE_STORABLE_CLASSES | |
226 | virtual void StoreObject( ostream &WXUNUSED(stream) ) {}; | |
227 | #endif | |
228 | ||
229 | // make a 'clone' of the object | |
230 | void Ref(const wxObject& clone); | |
231 | ||
232 | // destroy a reference | |
233 | void UnRef(void); | |
234 | ||
235 | inline wxObjectRefData *GetRefData(void) const { return m_refData; } | |
236 | inline void SetRefData(wxObjectRefData *data) { m_refData = data; } | |
237 | ||
238 | protected: | |
239 | wxObjectRefData *m_refData; | |
240 | }; | |
241 | ||
242 | /* | |
243 | * wxObjectData | |
244 | */ | |
245 | ||
246 | class WXDLLEXPORT wxObjectRefData { | |
247 | ||
248 | friend class wxObject; | |
249 | ||
250 | public: | |
251 | wxObjectRefData(void); | |
252 | virtual ~wxObjectRefData(void); | |
253 | ||
254 | inline int GetRefCount(void) const { return m_count; } | |
255 | private: | |
256 | int m_count; | |
257 | }; | |
258 | ||
b2aef89b | 259 | #if WXDEBUG && USE_GLOBAL_MEMORY_OPERATORS |
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260 | #ifndef WXDEBUG_NEW |
261 | #define WXDEBUG_NEW new(__FILE__,__LINE__) | |
262 | #endif | |
263 | #define new WXDEBUG_NEW | |
264 | #endif | |
265 | ||
266 | #endif | |
267 | // __OBJECTH__ | |
268 | ||
269 |