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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
22class WXDLLEXPORT wxObject;
23
24#if wxUSE_DYNAMIC_CLASSES
25
26#ifdef __GNUWIN32__
27#ifdef GetClassName
28#undef GetClassName
29#endif
30#endif
31
32class WXDLLEXPORT wxClassInfo;
33class WXDLLEXPORT wxInputStream;
34class WXDLLEXPORT wxObjectInputStream;
35class WXDLLEXPORT wxObjectOutputStream;
36class WXDLLEXPORT wxHashTable;
37class 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
53typedef wxObject * (*wxObjectConstructorFn) (void);
54
55class 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
81public:
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
99WXDLLEXPORT wxObject* wxCreateDynamicObject(const char *name);
100
101#ifdef wxUSE_SERIAL
102WXDLLEXPORT 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) \
120wxObject* 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) \
126wxObject* 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
177class WXDLLEXPORT wxObjectRefData;
178
179class 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
236protected:
237 wxObjectRefData* m_refData;
238#ifdef wxUSE_SERIAL
239 wxObject_Serialize* m_serialObj;
240#endif
241};
242
243/*
244 * wxObjectData
245 */
246
247class WXDLLEXPORT wxObjectRefData {
248
249 friend class wxObject;
250
251public:
252 wxObjectRefData(void);
253 virtual ~wxObjectRefData(void);
254
255 inline int GetRefCount(void) const { return m_count; }
256private:
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