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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 _WX_OBJECTH__ | |
13 | #define _WX_OBJECTH__ | |
14 | ||
15 | #ifdef __GNUG__ | |
16 | #pragma interface "object.h" | |
17 | #endif | |
18 | ||
19 | #include "wx/defs.h" | |
20 | #include "wx/memory.h" | |
21 | ||
22 | class WXDLLEXPORT wxObject; | |
23 | ||
24 | #if wxUSE_DYNAMIC_CLASSES | |
25 | ||
26 | #ifdef __GNUWIN32__ | |
27 | #ifdef GetClassName | |
28 | #undef GetClassName | |
29 | #endif | |
30 | #endif | |
31 | ||
32 | class WXDLLEXPORT wxClassInfo; | |
33 | class WXDLLEXPORT wxInputStream; | |
34 | class WXDLLEXPORT wxObjectInputStream; | |
35 | class WXDLLEXPORT wxObjectOutputStream; | |
36 | class WXDLLEXPORT wxHashTable; | |
37 | class WXDLLEXPORT wxObject_Serialize; | |
38 | ||
39 | #if wxUSE_IOSTREAMH | |
40 | // N.B. BC++ doesn't have istream.h, ostream.h | |
41 | # include <iostream.h> | |
42 | #else | |
43 | # include <ostream> | |
44 | # ifdef _MSC_VER | |
45 | using namespace std; | |
46 | # endif | |
47 | #endif | |
48 | ||
49 | /* | |
50 | * Dynamic object system declarations | |
51 | */ | |
52 | ||
53 | typedef wxObject * (*wxObjectConstructorFn) (void); | |
54 | ||
55 | class WXDLLEXPORT wxClassInfo | |
56 | { | |
57 | public: | |
58 | wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn fn); | |
59 | ||
60 | wxObject *CreateObject(void); | |
61 | ||
62 | inline char *GetClassName(void) const { return m_className; } | |
63 | inline char *GetBaseClassName1(void) const { return m_baseClassName1; } | |
64 | inline char *GetBaseClassName2(void) const { return m_baseClassName2; } | |
65 | inline wxClassInfo* GetBaseClass1() const { return m_baseInfo1; } | |
66 | inline wxClassInfo* GetBaseClass2() const { return m_baseInfo2; } | |
67 | inline int GetSize(void) const { return m_objectSize; } | |
68 | inline wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; } | |
69 | static inline wxClassInfo* GetFirst() { return sm_first; } | |
70 | inline wxClassInfo* GetNext() const { return m_next; } | |
71 | bool IsKindOf(wxClassInfo *info) const; | |
72 | ||
73 | static wxClassInfo *FindClass(char *c); | |
74 | ||
75 | // Initializes parent pointers and hash table for fast searching. | |
76 | static void InitializeClasses(void); | |
77 | ||
78 | // Cleans up hash table used for fast searching. | |
79 | static void CleanUpClasses(void); | |
80 | ||
81 | public: | |
82 | char* m_className; | |
83 | char* m_baseClassName1; | |
84 | char* m_baseClassName2; | |
85 | int m_objectSize; | |
86 | wxObjectConstructorFn m_objectConstructor; | |
87 | ||
88 | // Pointers to base wxClassInfos: set in InitializeClasses | |
89 | // called from wx_main.cc | |
90 | wxClassInfo* m_baseInfo1; | |
91 | wxClassInfo* m_baseInfo2; | |
92 | ||
93 | static wxClassInfo* sm_first; | |
94 | wxClassInfo* m_next; | |
95 | ||
96 | static wxHashTable* sm_classTable; | |
97 | }; | |
98 | ||
99 | WXDLLEXPORT wxObject* wxCreateDynamicObject(const char *name); | |
100 | ||
101 | #ifdef wxUSE_SERIAL | |
102 | WXDLLEXPORT wxObject* wxCreateStoredObject( wxInputStream& stream ); | |
103 | #endif | |
104 | ||
105 | #define DECLARE_DYNAMIC_CLASS(name) \ | |
106 | public:\ | |
107 | static wxClassInfo sm_class##name;\ | |
108 | wxClassInfo *GetClassInfo() const \ | |
109 | { return &name::sm_class##name; } | |
110 | ||
111 | #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name) | |
112 | #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name) | |
113 | ||
114 | ////// | |
115 | ////// for concrete classes | |
116 | ////// | |
117 | ||
118 | // Single inheritance with one base class | |
119 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) \ | |
120 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ | |
121 | { return new name; }\ | |
122 | wxClassInfo name::sm_class##name((char *) #name, (char *) #basename, (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name); | |
123 | ||
124 | // Multiple inheritance with two base classes | |
125 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \ | |
126 | wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ | |
127 | { return new name; }\ | |
128 | wxClassInfo name::sm_class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name); | |
129 | ||
130 | ////// | |
131 | ////// for abstract classes | |
132 | ////// | |
133 | ||
134 | // Single inheritance with one base class | |
135 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) \ | |
136 | wxClassInfo name::sm_class##name((char *) #name, (char *) #basename, \ | |
137 | (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) NULL); | |
138 | ||
139 | // Multiple inheritance with two base classes | |
140 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \ | |
141 | wxClassInfo name::sm_class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) NULL); | |
142 | ||
143 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS | |
144 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 | |
145 | ||
146 | #define CLASSINFO(name) (&name::sm_class##name) | |
147 | ||
148 | #else | |
149 | ||
150 | // No dynamic class system: so stub out the macros | |
151 | #define DECLARE_DYNAMIC_CLASS(name) | |
152 | #define DECLARE_ABSTRACT_CLASS(name) | |
153 | #define DECLARE_CLASS(name) | |
154 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) | |
155 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) | |
156 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) | |
157 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) | |
158 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS | |
159 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 | |
160 | ||
161 | #endif | |
162 | ||
163 | #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className) | |
164 | ||
165 | // Just seems a bit nicer-looking (pretend it's not a macro) | |
166 | #define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className) | |
167 | ||
168 | // Unfortunately Borland seems to need this include. | |
169 | #ifdef __BORLANDC__ | |
170 | #if wxUSE_IOSTREAMH | |
171 | #include <iostream.h> | |
172 | #else | |
173 | #include <iostream> | |
174 | #endif | |
175 | #endif | |
176 | ||
177 | class WXDLLEXPORT wxObjectRefData; | |
178 | ||
179 | class WXDLLEXPORT wxObject | |
180 | { | |
181 | public: | |
182 | ||
183 | // This is equivalent to using the macro DECLARE_ABSTRACT_CLASS | |
184 | static wxClassInfo sm_classwxObject; | |
185 | ||
186 | wxObject(void); | |
187 | virtual ~wxObject(void); | |
188 | ||
189 | virtual wxClassInfo *GetClassInfo(void) const { return &sm_classwxObject; } | |
190 | ||
191 | bool IsKindOf(wxClassInfo *info) const; | |
192 | ||
193 | #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING | |
194 | void * operator new (size_t size, char * fileName = NULL, int lineNum = 0); | |
195 | void operator delete (void * buf); | |
196 | ||
197 | // VC++ 6.0 | |
198 | #if _MSC_VER >= 1200 | |
199 | void operator delete(void *buf, char*, int); | |
200 | #endif | |
201 | ||
202 | // Cause problems for VC++ | |
203 | // #ifndef _MSC_VER | |
204 | #if !defined(_MSC_VER) && wxUSE_ARRAY_MEMORY_OPERATORS | |
205 | void * operator new[] (size_t size, char * fileName = NULL, int lineNum = 0); | |
206 | void operator delete[] (void * buf); | |
207 | #endif | |
208 | ||
209 | /* | |
210 | #ifdef __MWERKS__ | |
211 | void * operator new[] (size_t size, char * fileName , int lineNum = 0); | |
212 | void operator delete[] (void * buf); | |
213 | #endif | |
214 | */ | |
215 | ||
216 | #endif | |
217 | ||
218 | #if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT | |
219 | virtual void Dump(ostream& str); | |
220 | #endif | |
221 | ||
222 | #ifdef wxUSE_SERIAL | |
223 | virtual void StoreObject( wxObjectOutputStream &stream ); | |
224 | virtual void LoadObject( wxObjectInputStream &stream ); | |
225 | #endif | |
226 | ||
227 | // make a 'clone' of the object | |
228 | void Ref(const wxObject& clone); | |
229 | ||
230 | // destroy a reference | |
231 | void UnRef(void); | |
232 | ||
233 | inline wxObjectRefData *GetRefData(void) const { return m_refData; } | |
234 | inline void SetRefData(wxObjectRefData *data) { m_refData = data; } | |
235 | ||
236 | protected: | |
237 | wxObjectRefData* m_refData; | |
238 | #ifdef wxUSE_SERIAL | |
239 | wxObject_Serialize* m_serialObj; | |
240 | #endif | |
241 | }; | |
242 | ||
243 | /* | |
244 | * wxObjectData | |
245 | */ | |
246 | ||
247 | class WXDLLEXPORT wxObjectRefData { | |
248 | ||
249 | friend class wxObject; | |
250 | ||
251 | public: | |
252 | wxObjectRefData(void); | |
253 | virtual ~wxObjectRefData(void); | |
254 | ||
255 | inline int GetRefCount(void) const { return m_count; } | |
256 | private: | |
257 | int m_count; | |
258 | }; | |
259 | ||
260 | #ifdef __WXDEBUG__ | |
261 | #ifndef WXDEBUG_NEW | |
262 | #define WXDEBUG_NEW new(__FILE__,__LINE__) | |
263 | #endif | |
264 | #else | |
265 | #define WXDEBUG_NEW new | |
266 | #endif | |
267 | ||
268 | // Redefine new to be the debugging version. This doesn't | |
269 | // work with all compilers, in which case you need to | |
270 | // use WXDEBUG_NEW explicitly if you wish to use the debugging version. | |
271 | ||
272 | #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS | |
273 | #define new new(__FILE__,__LINE__) | |
274 | #endif | |
275 | ||
276 | #endif | |
277 | // _WX_OBJECTH__ | |
278 | ||
279 |