| | 1 | ///////////////////////////////////////////////////////////////////////////// |
| | 2 | // Name: wx/object.h |
| | 3 | // Purpose: wxObject class, plus run-time type information macros |
| | 4 | // Author: Julian Smart |
| | 5 | // Modified by: Ron Lee |
| | 6 | // Created: 01/02/97 |
| | 7 | // RCS-ID: $Id$ |
| | 8 | // Copyright: (c) 1997 Julian Smart |
| | 9 | // (c) 2001 Ron Lee <ron@debian.org> |
| | 10 | // Licence: wxWindows licence |
| | 11 | ///////////////////////////////////////////////////////////////////////////// |
| | 12 | |
| | 13 | #ifndef _WX_OBJECTH__ |
| | 14 | #define _WX_OBJECTH__ |
| | 15 | |
| | 16 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| | 17 | #pragma interface "object.h" |
| | 18 | #endif |
| | 19 | |
| | 20 | // ---------------------------------------------------------------------------- |
| | 21 | // headers |
| | 22 | // ---------------------------------------------------------------------------- |
| | 23 | |
| | 24 | #include "wx/defs.h" |
| | 25 | #include "wx/memory.h" |
| | 26 | |
| | 27 | class WXDLLIMPEXP_BASE wxObject; |
| | 28 | |
| | 29 | #if wxUSE_DYNAMIC_CLASSES |
| | 30 | |
| | 31 | #ifndef wxUSE_EXTENDED_RTTI |
| | 32 | #define wxUSE_EXTENDED_RTTI 0 |
| | 33 | #endif |
| | 34 | |
| | 35 | #if wxUSE_EXTENDED_RTTI |
| | 36 | #include "wx/xti.h" |
| | 37 | #else |
| | 38 | |
| | 39 | // ---------------------------------------------------------------------------- |
| | 40 | // conditional compilation |
| | 41 | // ---------------------------------------------------------------------------- |
| | 42 | |
| | 43 | // this shouldn't be needed any longer as <wx/msw/private.h> does it but it |
| | 44 | // doesn't hurt neither |
| | 45 | #ifdef GetClassName |
| | 46 | #undef GetClassName |
| | 47 | #endif |
| | 48 | #ifdef GetClassInfo |
| | 49 | #undef GetClassInfo |
| | 50 | #endif |
| | 51 | |
| | 52 | class WXDLLIMPEXP_BASE wxClassInfo; |
| | 53 | class WXDLLIMPEXP_BASE wxHashTable; |
| | 54 | class WXDLLIMPEXP_BASE wxObjectRefData; |
| | 55 | |
| | 56 | // ---------------------------------------------------------------------------- |
| | 57 | // wxClassInfo |
| | 58 | // ---------------------------------------------------------------------------- |
| | 59 | |
| | 60 | typedef wxObject *(*wxObjectConstructorFn)(void); |
| | 61 | |
| | 62 | class WXDLLIMPEXP_BASE wxClassInfo |
| | 63 | { |
| | 64 | public: |
| | 65 | wxClassInfo( const wxChar *className, |
| | 66 | const wxClassInfo *baseInfo1, |
| | 67 | const wxClassInfo *baseInfo2, |
| | 68 | int size, |
| | 69 | wxObjectConstructorFn ctor ) |
| | 70 | : m_className(className) |
| | 71 | , m_objectSize(size) |
| | 72 | , m_objectConstructor(ctor) |
| | 73 | , m_baseInfo1(baseInfo1) |
| | 74 | , m_baseInfo2(baseInfo2) |
| | 75 | , m_next(sm_first) |
| | 76 | { |
| | 77 | sm_first = this; |
| | 78 | Register(); |
| | 79 | } |
| | 80 | |
| | 81 | ~wxClassInfo(); |
| | 82 | |
| | 83 | wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; } |
| | 84 | |
| | 85 | const wxChar *GetClassName() const { return m_className; } |
| | 86 | const wxChar *GetBaseClassName1() const |
| | 87 | { return m_baseInfo1 ? m_baseInfo1->GetClassName() : NULL; } |
| | 88 | const wxChar *GetBaseClassName2() const |
| | 89 | { return m_baseInfo2 ? m_baseInfo2->GetClassName() : NULL; } |
| | 90 | const wxClassInfo *GetBaseClass1() const { return m_baseInfo1; } |
| | 91 | const wxClassInfo *GetBaseClass2() const { return m_baseInfo2; } |
| | 92 | int GetSize() const { return m_objectSize; } |
| | 93 | |
| | 94 | wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; } |
| | 95 | static const wxClassInfo *GetFirst() { return sm_first; } |
| | 96 | const wxClassInfo *GetNext() const { return m_next; } |
| | 97 | static wxClassInfo *FindClass(const wxChar *className); |
| | 98 | |
| | 99 | // Climb upwards through inheritance hierarchy. |
| | 100 | // Dual inheritance is catered for. |
| | 101 | |
| | 102 | bool IsKindOf(const wxClassInfo *info) const |
| | 103 | { |
| | 104 | return info != 0 && |
| | 105 | ( info == this || |
| | 106 | ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) || |
| | 107 | ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) ); |
| | 108 | } |
| | 109 | |
| | 110 | #if WXWIN_COMPATIBILITY_2_4 |
| | 111 | // Initializes parent pointers and hash table for fast searching. |
| | 112 | wxDEPRECATED( static void InitializeClasses() ); |
| | 113 | // Cleans up hash table used for fast searching. |
| | 114 | wxDEPRECATED( static void CleanUpClasses() ); |
| | 115 | #endif |
| | 116 | static void CleanUp(); |
| | 117 | |
| | 118 | public: |
| | 119 | const wxChar *m_className; |
| | 120 | int m_objectSize; |
| | 121 | wxObjectConstructorFn m_objectConstructor; |
| | 122 | |
| | 123 | // Pointers to base wxClassInfos: set in InitializeClasses |
| | 124 | |
| | 125 | const wxClassInfo *m_baseInfo1; |
| | 126 | const wxClassInfo *m_baseInfo2; |
| | 127 | |
| | 128 | // class info object live in a linked list: |
| | 129 | // pointers to its head and the next element in it |
| | 130 | |
| | 131 | static wxClassInfo *sm_first; |
| | 132 | wxClassInfo *m_next; |
| | 133 | |
| | 134 | // FIXME: this should be private (currently used directly by way too |
| | 135 | // many clients) |
| | 136 | static wxHashTable *sm_classTable; |
| | 137 | |
| | 138 | private: |
| | 139 | // InitializeClasses() helper |
| | 140 | static wxClassInfo *GetBaseByName(const wxChar *name); |
| | 141 | |
| | 142 | DECLARE_NO_COPY_CLASS(wxClassInfo) |
| | 143 | |
| | 144 | protected: |
| | 145 | // registers the class |
| | 146 | void Register(); |
| | 147 | void Unregister(); |
| | 148 | }; |
| | 149 | |
| | 150 | WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name); |
| | 151 | |
| | 152 | #if WXWIN_COMPATIBILITY_2_4 |
| | 153 | inline void wxClassInfo::InitializeClasses() {} |
| | 154 | inline void wxClassInfo::CleanUpClasses() {} |
| | 155 | #endif |
| | 156 | |
| | 157 | // ---------------------------------------------------------------------------- |
| | 158 | // Dynamic class macros |
| | 159 | // ---------------------------------------------------------------------------- |
| | 160 | |
| | 161 | #define DECLARE_DYNAMIC_CLASS(name) \ |
| | 162 | public: \ |
| | 163 | static wxClassInfo ms_classInfo; \ |
| | 164 | static wxObject* wxCreateObject(); \ |
| | 165 | virtual wxClassInfo *GetClassInfo() const \ |
| | 166 | { return &name::ms_classInfo; } |
| | 167 | |
| | 168 | #define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(name) \ |
| | 169 | DECLARE_NO_ASSIGN_CLASS(name) \ |
| | 170 | DECLARE_DYNAMIC_CLASS(name) |
| | 171 | |
| | 172 | #define DECLARE_DYNAMIC_CLASS_NO_COPY(name) \ |
| | 173 | DECLARE_NO_COPY_CLASS(name) \ |
| | 174 | DECLARE_DYNAMIC_CLASS(name) |
| | 175 | |
| | 176 | #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name) |
| | 177 | #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name) |
| | 178 | |
| | 179 | // ----------------------------------- |
| | 180 | // for concrete classes |
| | 181 | // ----------------------------------- |
| | 182 | |
| | 183 | // Single inheritance with one base class |
| | 184 | |
| | 185 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) \ |
| | 186 | wxObject* name::wxCreateObject() \ |
| | 187 | { return new name; } \ |
| | 188 | wxClassInfo name::ms_classInfo(wxT(#name), \ |
| | 189 | &basename::ms_classInfo, NULL, \ |
| | 190 | (int) sizeof(name), \ |
| | 191 | (wxObjectConstructorFn) name::wxCreateObject); |
| | 192 | |
| | 193 | // Multiple inheritance with two base classes |
| | 194 | |
| | 195 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \ |
| | 196 | wxObject* name::wxCreateObject() \ |
| | 197 | { return new name; } \ |
| | 198 | wxClassInfo name::ms_classInfo(wxT(#name), \ |
| | 199 | &basename1::ms_classInfo, \ |
| | 200 | &basename2::ms_classInfo, \ |
| | 201 | wxT(#basename2), (int) sizeof(name), \ |
| | 202 | (wxObjectConstructorFn) name::wxCreateObject); |
| | 203 | |
| | 204 | // ----------------------------------- |
| | 205 | // for abstract classes |
| | 206 | // ----------------------------------- |
| | 207 | |
| | 208 | // Single inheritance with one base class |
| | 209 | |
| | 210 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) \ |
| | 211 | wxClassInfo name::ms_classInfo(wxT(#name), \ |
| | 212 | &basename::ms_classInfo, NULL, \ |
| | 213 | (int) sizeof(name), (wxObjectConstructorFn) 0); |
| | 214 | |
| | 215 | // Multiple inheritance with two base classes |
| | 216 | |
| | 217 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \ |
| | 218 | wxClassInfo name::ms_classInfo(wxT(#name), \ |
| | 219 | &basename1::ms_classInfo, \ |
| | 220 | &basename2::ms_classInfo, \ |
| | 221 | (int) sizeof(name), \ |
| | 222 | (wxObjectConstructorFn) 0); |
| | 223 | |
| | 224 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS |
| | 225 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 |
| | 226 | |
| | 227 | #endif // !wxUSE_EXTENDED_RTTI |
| | 228 | |
| | 229 | |
| | 230 | // ----------------------------------- |
| | 231 | // for pluggable classes |
| | 232 | // ----------------------------------- |
| | 233 | |
| | 234 | // NOTE: this should probably be the very first statement |
| | 235 | // in the class declaration so wxPluginSentinel is |
| | 236 | // the first member initialised and the last destroyed. |
| | 237 | |
| | 238 | // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel; |
| | 239 | |
| | 240 | #if wxUSE_NESTED_CLASSES |
| | 241 | |
| | 242 | #define _DECLARE_DL_SENTINEL(name, exportdecl) \ |
| | 243 | class exportdecl name##PluginSentinel { \ |
| | 244 | private: \ |
| | 245 | static const wxString sm_className; \ |
| | 246 | public: \ |
| | 247 | name##PluginSentinel(); \ |
| | 248 | ~name##PluginSentinel(); \ |
| | 249 | }; \ |
| | 250 | name##PluginSentinel m_pluginsentinel; |
| | 251 | |
| | 252 | #define _IMPLEMENT_DL_SENTINEL(name) \ |
| | 253 | const wxString name::name##PluginSentinel::sm_className(#name); \ |
| | 254 | name::name##PluginSentinel::name##PluginSentinel() { \ |
| | 255 | wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \ |
| | 256 | if( e != 0 ) { e->RefObj(); } \ |
| | 257 | } \ |
| | 258 | name::name##PluginSentinel::~name##PluginSentinel() { \ |
| | 259 | wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \ |
| | 260 | if( e != 0 ) { e->UnrefObj(); } \ |
| | 261 | } |
| | 262 | #else |
| | 263 | |
| | 264 | #define _DECLARE_DL_SENTINEL(name) |
| | 265 | #define _IMPLEMENT_DL_SENTINEL(name) |
| | 266 | |
| | 267 | #endif // wxUSE_NESTED_CLASSES |
| | 268 | |
| | 269 | #define DECLARE_PLUGGABLE_CLASS(name) \ |
| | 270 | DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT) |
| | 271 | #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name) \ |
| | 272 | DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT) |
| | 273 | |
| | 274 | #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \ |
| | 275 | DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo) |
| | 276 | #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo) \ |
| | 277 | DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo) |
| | 278 | |
| | 279 | #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \ |
| | 280 | IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name) |
| | 281 | #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) \ |
| | 282 | IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name) |
| | 283 | #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \ |
| | 284 | IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name) |
| | 285 | #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \ |
| | 286 | IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name) |
| | 287 | |
| | 288 | #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \ |
| | 289 | IMPLEMENT_PLUGGABLE_CLASS(name, basename) |
| | 290 | #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2) \ |
| | 291 | IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 292 | #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \ |
| | 293 | IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) |
| | 294 | #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \ |
| | 295 | IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 296 | |
| | 297 | #define CLASSINFO(name) (&name::ms_classInfo) |
| | 298 | |
| | 299 | #else // !wxUSE_DYNAMIC_CLASSES |
| | 300 | |
| | 301 | // No dynamic class system: so stub out the macros |
| | 302 | |
| | 303 | #define DECLARE_DYNAMIC_CLASS(name) |
| | 304 | #define DECLARE_ABSTRACT_CLASS(name) |
| | 305 | #define DECLARE_CLASS(name) |
| | 306 | #define IMPLEMENT_DYNAMIC_CLASS(name, basename) |
| | 307 | #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) |
| | 308 | #define IMPLEMENT_ABSTRACT_CLASS(name, basename) |
| | 309 | #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) |
| | 310 | #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS |
| | 311 | #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 |
| | 312 | |
| | 313 | #define DECLARE_PLUGGABLE_CLASS(name) |
| | 314 | #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name) |
| | 315 | #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) |
| | 316 | #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 317 | #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) |
| | 318 | #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 319 | |
| | 320 | #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) |
| | 321 | #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo) |
| | 322 | #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) |
| | 323 | #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 324 | #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) |
| | 325 | #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) |
| | 326 | |
| | 327 | #endif // wxUSE_DYNAMIC_CLASSES |
| | 328 | |
| | 329 | #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo) |
| | 330 | |
| | 331 | // Just seems a bit nicer-looking (pretend it's not a macro) |
| | 332 | #define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo) |
| | 333 | |
| | 334 | // to be replaced by dynamic_cast<> in the future |
| | 335 | #define wxDynamicCast(obj, className) \ |
| | 336 | ((className *) wxCheckDynamicCast((wxObject*)(obj), &className::ms_classInfo)) |
| | 337 | |
| | 338 | // The 'this' pointer is always true, so use this version |
| | 339 | // to cast the this pointer and avoid compiler warnings. |
| | 340 | #define wxDynamicCastThis(className) \ |
| | 341 | (IsKindOf(&className::ms_classInfo) ? (className *)(this) : (className *)0) |
| | 342 | |
| | 343 | #ifdef __WXDEBUG__ |
| | 344 | inline void* wxCheckCast(void *ptr) |
| | 345 | { |
| | 346 | wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") ); |
| | 347 | return ptr; |
| | 348 | } |
| | 349 | #define wxStaticCast(obj, className) \ |
| | 350 | ((className *)wxCheckCast(wxDynamicCast(obj, className))) |
| | 351 | |
| | 352 | #else // !__WXDEBUG__ |
| | 353 | #define wxStaticCast(obj, className) ((className *)(obj)) |
| | 354 | |
| | 355 | #endif // __WXDEBUG__ |
| | 356 | |
| | 357 | // ---------------------------------------------------------------------------- |
| | 358 | // set up memory debugging macros |
| | 359 | // ---------------------------------------------------------------------------- |
| | 360 | |
| | 361 | /* |
| | 362 | Which new/delete operator variants do we want? |
| | 363 | |
| | 364 | _WX_WANT_NEW_SIZET_WXCHAR_INT = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0) |
| | 365 | _WX_WANT_DELETE_VOID = void operator delete (void * buf) |
| | 366 | _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET = void operator delete (void *buf, const char *_fname, size_t _line) |
| | 367 | _WX_WANT_DELETE_VOID_WXCHAR_INT = void operator delete(void *buf, wxChar*, int) |
| | 368 | _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0) |
| | 369 | _WX_WANT_ARRAY_DELETE_VOID = void operator delete[] (void *buf) |
| | 370 | _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT = void operator delete[] (void* buf, wxChar*, int ) |
| | 371 | */ |
| | 372 | |
| | 373 | #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING |
| | 374 | |
| | 375 | // All compilers get this one |
| | 376 | #define _WX_WANT_NEW_SIZET_WXCHAR_INT |
| | 377 | |
| | 378 | // Everyone except Visage gets the next one |
| | 379 | #ifndef __VISAGECPP__ |
| | 380 | #define _WX_WANT_DELETE_VOID |
| | 381 | #endif |
| | 382 | |
| | 383 | // Only visage gets this one under the correct circumstances |
| | 384 | #if defined(__VISAGECPP__) && __DEBUG_ALLOC__ |
| | 385 | #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET |
| | 386 | #endif |
| | 387 | |
| | 388 | // Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new |
| | 389 | #if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400)) |
| | 390 | #define _WX_WANT_DELETE_VOID_WXCHAR_INT |
| | 391 | #endif |
| | 392 | |
| | 393 | // Now see who (if anyone) gets the array memory operators |
| | 394 | #if wxUSE_ARRAY_MEMORY_OPERATORS |
| | 395 | |
| | 396 | // Everyone except Visual C++ (cause problems for VC++ - crashes) |
| | 397 | #if !defined(__VISUALC__) |
| | 398 | #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT |
| | 399 | #endif |
| | 400 | |
| | 401 | // Everyone except Visual C++ (cause problems for VC++ - crashes) |
| | 402 | #if !defined(__VISUALC__) |
| | 403 | #define _WX_WANT_ARRAY_DELETE_VOID |
| | 404 | #endif |
| | 405 | |
| | 406 | // Only CodeWarrior 6 or higher |
| | 407 | #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400) |
| | 408 | #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT |
| | 409 | #endif |
| | 410 | |
| | 411 | #endif // wxUSE_ARRAY_MEMORY_OPERATORS |
| | 412 | |
| | 413 | #endif // WXDEBUG && wxUSE_MEMORY_TRACING |
| | 414 | |
| | 415 | // ---------------------------------------------------------------------------- |
| | 416 | // wxObject: the root class of wxWindows object hierarchy |
| | 417 | // ---------------------------------------------------------------------------- |
| | 418 | |
| | 419 | class WXDLLIMPEXP_BASE wxObject |
| | 420 | { |
| | 421 | DECLARE_ABSTRACT_CLASS(wxObject) |
| | 422 | |
| | 423 | private: |
| | 424 | void InitFrom(const wxObject& other); |
| | 425 | |
| | 426 | public: |
| | 427 | wxObject() { m_refData = NULL; } |
| | 428 | virtual ~wxObject() { UnRef(); } |
| | 429 | |
| | 430 | wxObject(const wxObject& other) |
| | 431 | { |
| | 432 | InitFrom(other); |
| | 433 | } |
| | 434 | |
| | 435 | wxObject& operator=(const wxObject& other) |
| | 436 | { |
| | 437 | if ( this != &other ) |
| | 438 | { |
| | 439 | UnRef(); |
| | 440 | InitFrom(other); |
| | 441 | } |
| | 442 | return *this; |
| | 443 | } |
| | 444 | |
| | 445 | bool IsKindOf(wxClassInfo *info) const; |
| | 446 | |
| | 447 | |
| | 448 | // Turn on the correct set of new and delete operators |
| | 449 | |
| | 450 | #ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT |
| | 451 | void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 ); |
| | 452 | #endif |
| | 453 | |
| | 454 | #ifdef _WX_WANT_DELETE_VOID |
| | 455 | void operator delete ( void * buf ); |
| | 456 | #endif |
| | 457 | |
| | 458 | #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET |
| | 459 | void operator delete ( void *buf, const char *_fname, size_t _line ); |
| | 460 | #endif |
| | 461 | |
| | 462 | #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT |
| | 463 | void operator delete ( void *buf, const wxChar*, int ); |
| | 464 | #endif |
| | 465 | |
| | 466 | #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT |
| | 467 | void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 ); |
| | 468 | #endif |
| | 469 | |
| | 470 | #ifdef _WX_WANT_ARRAY_DELETE_VOID |
| | 471 | void operator delete[] ( void *buf ); |
| | 472 | #endif |
| | 473 | |
| | 474 | #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT |
| | 475 | void operator delete[] (void* buf, const wxChar*, int ); |
| | 476 | #endif |
| | 477 | |
| | 478 | // ref counted data handling methods |
| | 479 | |
| | 480 | // get/set |
| | 481 | wxObjectRefData *GetRefData() const { return m_refData; } |
| | 482 | void SetRefData(wxObjectRefData *data) { m_refData = data; } |
| | 483 | |
| | 484 | // make a 'clone' of the object |
| | 485 | void Ref(const wxObject& clone); |
| | 486 | |
| | 487 | // destroy a reference |
| | 488 | void UnRef(); |
| | 489 | |
| | 490 | protected: |
| | 491 | // ensure that our data is not shared with anybody else: if we have no |
| | 492 | // data, it is created using CreateRefData() below, if we have shared data |
| | 493 | // it is copied using CloneRefData(), otherwise nothing is done |
| | 494 | void AllocExclusive(); |
| | 495 | |
| | 496 | // both methods must be implemented if Unshare() is used, not pure virtual |
| | 497 | // only because of the backwards compatibility reasons |
| | 498 | |
| | 499 | // create a new m_refData |
| | 500 | virtual wxObjectRefData *CreateRefData() const; |
| | 501 | |
| | 502 | // create a new m_refData initialized with the given one |
| | 503 | virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const; |
| | 504 | |
| | 505 | wxObjectRefData *m_refData; |
| | 506 | }; |
| | 507 | |
| | 508 | // ---------------------------------------------------------------------------- |
| | 509 | // wxObjectRefData: ref counted data meant to be stored in wxObject |
| | 510 | // ---------------------------------------------------------------------------- |
| | 511 | |
| | 512 | class WXDLLIMPEXP_BASE wxObjectRefData |
| | 513 | { |
| | 514 | friend class WXDLLIMPEXP_BASE wxObject; |
| | 515 | |
| | 516 | public: |
| | 517 | wxObjectRefData() : m_count(1) { } |
| | 518 | virtual ~wxObjectRefData() { } |
| | 519 | |
| | 520 | int GetRefCount() const { return m_count; } |
| | 521 | |
| | 522 | private: |
| | 523 | int m_count; |
| | 524 | }; |
| | 525 | |
| | 526 | |
| | 527 | inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo) |
| | 528 | { |
| | 529 | return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL; |
| | 530 | } |
| | 531 | |
| | 532 | #if wxUSE_EXTENDED_RTTI |
| | 533 | class WXDLLIMPEXP_BASE wxDynamicObject : public wxObject |
| | 534 | { |
| | 535 | friend class WXDLLIMPEXP_BASE wxDynamicClassInfo ; |
| | 536 | public: |
| | 537 | // instantiates this object with an instance of its superclass |
| | 538 | wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info) ; |
| | 539 | ~wxDynamicObject(); |
| | 540 | |
| | 541 | void SetProperty (const wxChar *propertyName, const wxxVariant &value); |
| | 542 | wxxVariant GetProperty (const wxChar *propertyName) const ; |
| | 543 | |
| | 544 | // get the runtime identity of this object |
| | 545 | wxClassInfo *GetClassInfo() const |
| | 546 | { |
| | 547 | return const_cast<wxClassInfo*>((const wxClassInfo*)m_classInfo); |
| | 548 | } |
| | 549 | |
| | 550 | wxObject* GetSuperClassInstance() const |
| | 551 | { |
| | 552 | return m_superClassInstance ; |
| | 553 | } |
| | 554 | private : |
| | 555 | // removes an existing runtime-property |
| | 556 | void RemoveProperty( const wxChar *propertyName ) ; |
| | 557 | |
| | 558 | // renames an existing runtime-property |
| | 559 | void RenameProperty( const wxChar *oldPropertyName , const wxChar *newPropertyName ) ; |
| | 560 | |
| | 561 | wxObject *m_superClassInstance ; |
| | 562 | const wxDynamicClassInfo *m_classInfo; |
| | 563 | struct wxDynamicObjectInternal; |
| | 564 | wxDynamicObjectInternal *m_data; |
| | 565 | }; |
| | 566 | #endif |
| | 567 | |
| | 568 | // ---------------------------------------------------------------------------- |
| | 569 | // more debugging macros |
| | 570 | // ---------------------------------------------------------------------------- |
| | 571 | |
| | 572 | #ifdef __WXDEBUG__ |
| | 573 | #ifndef WXDEBUG_NEW |
| | 574 | #define WXDEBUG_NEW new(__TFILE__,__LINE__) |
| | 575 | #endif |
| | 576 | #else // !__WXDEBUG__ |
| | 577 | #define WXDEBUG_NEW new |
| | 578 | #endif |
| | 579 | |
| | 580 | // Redefine new to be the debugging version. This doesn't work with all |
| | 581 | // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish |
| | 582 | // to use the debugging version. |
| | 583 | |
| | 584 | #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS |
| | 585 | #define new new(__TFILE__,__LINE__) |
| | 586 | #endif |
| | 587 | |
| | 588 | #endif // _WX_OBJECTH__ |
| | 589 | |
projects / wxWidgets.git / blame_incremental