include/wx/object.h

   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 and Markus Holzem
   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(__APPLE__)
  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 WXDLLEXPORT wxObject;
  28
  29 #if wxUSE_DYNAMIC_CLASSES
  30
  31 // ----------------------------------------------------------------------------
  32 // conditional compilation
  33 // ----------------------------------------------------------------------------
  34
  35 // this shouldn't be needed any longer as <wx/msw/private.h> does it but it
  36 // doesn't hurt neither
  37 #ifdef GetClassName
  38 #undef GetClassName
  39 #endif
  40 #ifdef GetClassInfo
  41 #undef GetClassInfo
  42 #endif
  43
  44 class WXDLLEXPORT wxClassInfo;
  45 class WXDLLEXPORT wxHashTable;
  46 class WXDLLEXPORT wxObjectRefData;
  47
  48 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
  49     #include "wx/ioswrap.h"
  50 #endif
  51
  52
  53 // ----------------------------------------------------------------------------
  54 // wxClassInfo
  55 // ----------------------------------------------------------------------------
  56
  57 typedef wxObject *(*wxObjectConstructorFn)(void);
  58
  59 class WXDLLEXPORT wxClassInfo
  60 {
  61 public:
  62     wxClassInfo( const wxChar *className,
  63                  const wxChar *baseName1,
  64                  const wxChar *baseName2,
  65                  int size,
  66                  wxObjectConstructorFn ctor )
  67         : m_className(className)
  68         , m_baseClassName1(baseName1)
  69         , m_baseClassName2(baseName2)
  70         , m_objectSize(size)
  71         , m_objectConstructor(ctor)
  72         , m_baseInfo1(0)
  73         , m_baseInfo2(0)
  74         , m_next(sm_first)
  75         { sm_first = this; }
  76
  77     ~wxClassInfo();
  78
  79     wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
  80
  81     const wxChar       *GetClassName() const { return m_className; }
  82     const wxChar       *GetBaseClassName1() const { return m_baseClassName1; }
  83     const wxChar       *GetBaseClassName2() const { return m_baseClassName2; }
  84     const wxClassInfo  *GetBaseClass1() const { return m_baseInfo1; }
  85     const wxClassInfo  *GetBaseClass2() const { return m_baseInfo2; }
  86     int                 GetSize() const { return m_objectSize; }
  87
  88     wxObjectConstructorFn      GetConstructor() const { return m_objectConstructor; }
  89     static const wxClassInfo  *GetFirst() { return sm_first; }
  90     const wxClassInfo         *GetNext() const { return m_next; }
  91     static wxClassInfo        *FindClass(const wxChar *className);
  92
  93         // Climb upwards through inheritance hierarchy.
  94         // Dual inheritance is catered for.
  95
  96     bool IsKindOf(const wxClassInfo *info) const
  97     {
  98         return info != 0 &&
  99                ( info == this ||
 100                  ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) ||
 101                  ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
 102     }
 103
 104         // Initializes parent pointers and hash table for fast searching.
 105
 106     static void     InitializeClasses();
 107
 108         // Cleans up hash table used for fast searching.
 109
 110     static void     CleanUpClasses();
 111
 112 public:
 113     const wxChar            *m_className;
 114     const wxChar            *m_baseClassName1;
 115     const wxChar            *m_baseClassName2;
 116     int                      m_objectSize;
 117     wxObjectConstructorFn    m_objectConstructor;
 118
 119         // Pointers to base wxClassInfos: set in InitializeClasses
 120
 121     const wxClassInfo       *m_baseInfo1;
 122     const wxClassInfo       *m_baseInfo2;
 123
 124         // class info object live in a linked list:
 125         // pointers to its head and the next element in it
 126
 127     static wxClassInfo      *sm_first;
 128     wxClassInfo             *m_next;
 129
 130     // FIXME: this should be private (currently used directly by way too
 131     //        many clients)
 132     static wxHashTable      *sm_classTable;
 133
 134 private:
 135     // InitializeClasses() helper
 136     static wxClassInfo *GetBaseByName(const wxChar *name);
 137
 138     DECLARE_NO_COPY_CLASS(wxClassInfo)
 139 };
 140
 141 WXDLLEXPORT wxObject *wxCreateDynamicObject(const wxChar *name);
 142
 143 // ----------------------------------------------------------------------------
 144 // Dynamic class macros
 145 // ----------------------------------------------------------------------------
 146
 147 #define DECLARE_DYNAMIC_CLASS(name)           \
 148  public:                                      \
 149   static wxClassInfo sm_class##name;          \
 150   virtual wxClassInfo *GetClassInfo() const   \
 151    { return &name::sm_class##name; }
 152
 153 #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 154 #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 155
 156 // -----------------------------------
 157 // for concrete classes
 158 // -----------------------------------
 159
 160     // Single inheritance with one base class
 161
 162 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)                 \
 163  wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name()          \
 164   { return new name; }                                          \
 165  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename),   \
 166             0, (int) sizeof(name),                              \
 167             (wxObjectConstructorFn) wxConstructorFor##name);
 168
 169     // Multiple inheritance with two base classes
 170
 171 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)    \
 172  wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name()          \
 173   { return new name; }                                          \
 174  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1),  \
 175             wxT(#basename2), (int) sizeof(name),                \
 176             (wxObjectConstructorFn) wxConstructorFor##name);
 177
 178 // -----------------------------------
 179 // for abstract classes
 180 // -----------------------------------
 181
 182     // Single inheritance with one base class
 183
 184 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)                \
 185  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename),   \
 186             0, (int) sizeof(name), (wxObjectConstructorFn) 0);
 187
 188     // Multiple inheritance with two base classes
 189
 190 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)   \
 191  wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1),  \
 192             wxT(#basename2), (int) sizeof(name),                \
 193             (wxObjectConstructorFn) 0);
 194
 195 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 196 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 197
 198 // -----------------------------------
 199 // for pluggable classes
 200 // -----------------------------------
 201
 202     // NOTE: this should probably be the very first statement
 203     //       in the class declaration so wxPluginSentinel is
 204     //       the first member initialised and the last destroyed.
 205
 206 // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
 207
 208 #if wxUSE_NESTED_CLASSES
 209
 210 #define _DECLARE_DL_SENTINEL(name, exportdecl)  \
 211 class exportdecl name##PluginSentinel {         \
 212 private:                                        \
 213     static const wxString sm_className;         \
 214 public:                                         \
 215     name##PluginSentinel();                     \
 216     ~name##PluginSentinel();                    \
 217 };                                              \
 218 name##PluginSentinel  m_pluginsentinel;
 219
 220 #define _IMPLEMENT_DL_SENTINEL(name)                                \
 221  const wxString name::name##PluginSentinel::sm_className(#name);    \
 222  name::name##PluginSentinel::name##PluginSentinel() {               \
 223     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 224     if( e != 0 ) { e->RefObj(); }                                      \
 225  }                                                                  \
 226  name::name##PluginSentinel::~name##PluginSentinel() {            \
 227     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 228     if( e != 0 ) { e->UnrefObj(); }                                 \
 229  }
 230 #else
 231
 232 #define _DECLARE_DL_SENTINEL(name)
 233 #define _IMPLEMENT_DL_SENTINEL(name)
 234
 235 #endif  // wxUSE_NESTED_CLASSES
 236
 237 #define DECLARE_PLUGGABLE_CLASS(name) \
 238  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 239 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
 240  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 241
 242 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
 243  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 244 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
 245  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 246
 247 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
 248  IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 249 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 250  IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 251 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 252  IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 253 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 254  IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 255
 256 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
 257  IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 258 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 259  IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 260 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 261  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 262 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 263  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 264
 265
 266 #define CLASSINFO(name) (&name::sm_class##name)
 267
 268 #else // !wxUSE_DYNAMIC_CLASSES
 269
 270     // No dynamic class system: so stub out the macros
 271
 272 #define DECLARE_DYNAMIC_CLASS(name)
 273 #define DECLARE_ABSTRACT_CLASS(name)
 274 #define DECLARE_CLASS(name)
 275 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)
 276 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)
 277 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)
 278 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)
 279 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 280 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 281
 282 #define DECLARE_PLUGGABLE_CLASS(name)
 283 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)
 284 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 285 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 286 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 287 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 288
 289 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo)
 290 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)
 291 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename)
 292 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)
 293 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 294 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 295
 296 #endif // wxUSE_DYNAMIC_CLASSES
 297
 298
 299 #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
 300
 301 // Just seems a bit nicer-looking (pretend it's not a macro)
 302 #define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className)
 303
 304 // to be replaced by dynamic_cast<> in the future
 305 #define wxDynamicCast(obj, className) \
 306  ((className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className))
 307
 308 // The 'this' pointer is always true, so use this version
 309 // to cast the this pointer and avoid compiler warnings.
 310 #define wxDynamicCastThis(className) \
 311  (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0)
 312
 313 #define wxConstCast(obj, className) ((className *)(obj))
 314
 315
 316 #ifdef __WXDEBUG__
 317 inline void wxCheckCast(void *ptr)
 318 {
 319     wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
 320 }
 321 #define wxStaticCast(obj, className) \
 322  (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
 323
 324 #else  // !__WXDEBUG__
 325 #define wxStaticCast(obj, className) ((className *)(obj))
 326
 327 #endif  // __WXDEBUG__
 328
 329
 330 // for some reason Borland seems to need this include.
 331 #if wxUSE_STD_IOSTREAM                                \
 332     && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)  \
 333     && defined(__BORLANDC__)
 334     #if wxUSE_IOSTREAMH
 335         #include <iostream.h>
 336     #else
 337         #include <iostream>
 338     #endif
 339 #endif // wxUSE_IOSTREAMH
 340
 341 // ----------------------------------------------------------------------------
 342 // set up memory debugging macros
 343 // ----------------------------------------------------------------------------
 344
 345 /*
 346     Which new/delete operator variants do we want?
 347
 348     _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
 349     _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
 350     _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
 351     _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
 352     _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
 353     _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
 354     _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
 355 */
 356
 357 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 358
 359 // All compilers get this one
 360 #define _WX_WANT_NEW_SIZET_WXCHAR_INT
 361
 362 // Everyone except Visage gets the next one
 363 #ifndef __VISAGECPP__
 364     #define _WX_WANT_DELETE_VOID
 365 #endif
 366
 367 // Only visage gets this one under the correct circumstances
 368 #if defined(__VISAGECPP__) && __DEBUG_ALLOC__
 369     #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 370 #endif
 371
 372 // Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
 373 #if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
 374     #define _WX_WANT_DELETE_VOID_WXCHAR_INT
 375 #endif
 376
 377 // Now see who (if anyone) gets the array memory operators
 378 #if wxUSE_ARRAY_MEMORY_OPERATORS
 379
 380     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 381     #if !defined(__VISUALC__)
 382         #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 383     #endif
 384
 385     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 386     #if !defined(__VISUALC__)
 387         #define _WX_WANT_ARRAY_DELETE_VOID
 388     #endif
 389
 390     // Only CodeWarrior 6 or higher
 391     #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
 392         #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 393     #endif
 394
 395 #endif // wxUSE_ARRAY_MEMORY_OPERATORS
 396
 397 #endif // WXDEBUG && wxUSE_MEMORY_TRACING
 398
 399
 400 // ----------------------------------------------------------------------------
 401 // wxObject: the root class of wxWindows object hierarchy
 402 // ----------------------------------------------------------------------------
 403
 404 class WXDLLEXPORT wxObject
 405 {
 406     DECLARE_ABSTRACT_CLASS(wxObject)
 407
 408 private:
 409     void InitFrom(const wxObject& other);
 410
 411 public:
 412     wxObject() { m_refData = NULL; }
 413     virtual ~wxObject() { UnRef(); }
 414
 415     wxObject(const wxObject& other)
 416         {
 417             InitFrom(other);
 418         }
 419
 420     wxObject& operator=(const wxObject& other)
 421     {
 422         if ( this != &other )
 423         {
 424             UnRef();
 425             InitFrom(other);
 426         }
 427         return *this;
 428     }
 429
 430     bool IsKindOf(wxClassInfo *info) const;
 431
 432
 433     // Turn on the correct set of new and delete operators
 434
 435 #ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
 436     void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 437 #endif
 438
 439 #ifdef _WX_WANT_DELETE_VOID
 440     void operator delete ( void * buf );
 441 #endif
 442
 443 #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 444     void operator delete ( void *buf, const char *_fname, size_t _line );
 445 #endif
 446
 447 #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
 448     void operator delete ( void *buf, const wxChar*, int );
 449 #endif
 450
 451 #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 452     void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 453 #endif
 454
 455 #ifdef _WX_WANT_ARRAY_DELETE_VOID
 456     void operator delete[] ( void *buf );
 457 #endif
 458
 459 #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 460     void operator delete[] (void* buf, const wxChar*, int );
 461 #endif
 462
 463
 464 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
 465     virtual void Dump(wxSTD ostream& str);
 466 #endif
 467
 468     // ref counted data handling methods
 469
 470     // get/set
 471     wxObjectRefData *GetRefData() const { return m_refData; }
 472     void SetRefData(wxObjectRefData *data) { m_refData = data; }
 473
 474     // make a 'clone' of the object
 475     void Ref(const wxObject& clone);
 476
 477     // destroy a reference
 478     void UnRef();
 479
 480 protected:
 481     // ensure that our data is not shared with anybody else: if we have no
 482     // data, it is created using CreateRefData() below, if we have shared data
 483     // it is copied using CloneRefData(), otherwise nothing is done
 484     void AllocExclusive();
 485
 486     // both methods must be implemented if Unshare() is used, not pure virtual
 487     // only because of the backwards compatibility reasons
 488
 489     // create a new m_refData
 490     virtual wxObjectRefData *CreateRefData() const;
 491
 492     // create a new m_refData initialized with the given one
 493     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 494
 495     wxObjectRefData *m_refData;
 496 };
 497
 498 // ----------------------------------------------------------------------------
 499 // wxObjectRefData: ref counted data meant to be stored in wxObject
 500 // ----------------------------------------------------------------------------
 501
 502 class WXDLLEXPORT wxObjectRefData
 503 {
 504     friend class wxObject;
 505
 506 public:
 507     wxObjectRefData() : m_count(1) { }
 508     virtual ~wxObjectRefData() { }
 509
 510     int GetRefCount() const { return m_count; }
 511
 512 private:
 513     int m_count;
 514 };
 515
 516
 517 inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 518 {
 519     return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 520 }
 521
 522 // ----------------------------------------------------------------------------
 523 // more debugging macros
 524 // ----------------------------------------------------------------------------
 525
 526 #ifdef __WXDEBUG__
 527     #ifndef WXDEBUG_NEW
 528         #define WXDEBUG_NEW new(__TFILE__,__LINE__)
 529     #endif
 530 #else // !__WXDEBUG__
 531     #define WXDEBUG_NEW new
 532 #endif
 533
 534 // Redefine new to be the debugging version. This doesn't work with all
 535 // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
 536 // to use the debugging version.
 537
 538 #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 539     #define new new(__TFILE__,__LINE__)
 540 #endif
 541
 542 #endif  // _WX_OBJECTH__
 543