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
   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 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 { return m_baseInfo1->GetClassName(); }
  87     const wxChar       *GetBaseClassName2() const { return m_baseInfo2->GetClassName(); }
  88     const wxClassInfo  *GetBaseClass1() const { return m_baseInfo1; }
  89     const wxClassInfo  *GetBaseClass2() const { return m_baseInfo2; }
  90     int                 GetSize() const { return m_objectSize; }
  91
  92     wxObjectConstructorFn      GetConstructor() const { return m_objectConstructor; }
  93     static const wxClassInfo  *GetFirst() { return sm_first; }
  94     const wxClassInfo         *GetNext() const { return m_next; }
  95     static wxClassInfo        *FindClass(const wxChar *className);
  96
  97         // Climb upwards through inheritance hierarchy.
  98         // Dual inheritance is catered for.
  99
 100     bool IsKindOf(const wxClassInfo *info) const
 101     {
 102         return info != 0 &&
 103                ( info == this ||
 104                  ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) ||
 105                  ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
 106     }
 107
 108     // Initializes parent pointers and hash table for fast searching.
 109     static void     InitializeClasses();
 110
 111     // Cleans up hash table used for fast searching.
 112     static void     CleanUpClasses();
 113
 114 public:
 115     const wxChar            *m_className;
 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 protected:
 141     // registers the class
 142     void Register();
 143     void Unregister();
 144 };
 145
 146 WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name);
 147
 148 // ----------------------------------------------------------------------------
 149 // Dynamic class macros
 150 // ----------------------------------------------------------------------------
 151
 152 #define DECLARE_DYNAMIC_CLASS(name)           \
 153  public:                                      \
 154   static wxClassInfo sm_class##name;          \
 155   virtual wxClassInfo *GetClassInfo() const   \
 156    { return &name::sm_class##name; }
 157
 158 #define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(name)   \
 159     DECLARE_NO_ASSIGN_CLASS(name)               \
 160     DECLARE_DYNAMIC_CLASS(name)
 161
 162 #define DECLARE_DYNAMIC_CLASS_NO_COPY(name)   \
 163     DECLARE_NO_COPY_CLASS(name)               \
 164     DECLARE_DYNAMIC_CLASS(name)
 165
 166 #define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 167 #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 168
 169 // -----------------------------------
 170 // for concrete classes
 171 // -----------------------------------
 172
 173     // Single inheritance with one base class
 174
 175 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)                 \
 176  wxObject* wxConstructorFor##name()                             \
 177   { return new name; }                                          \
 178  wxClassInfo name::sm_class##name(wxT(#name),                   \
 179             &basename::sm_class##basename, NULL,                \
 180             (int) sizeof(name),                                 \
 181             (wxObjectConstructorFn) wxConstructorFor##name);
 182
 183     // Multiple inheritance with two base classes
 184
 185 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)    \
 186  wxObject* wxConstructorFor##name()                             \
 187   { return new name; }                                          \
 188  wxClassInfo name::sm_class##name(wxT(#name),                   \
 189             &basename1::sm_class##basename1,                    \
 190             &basename2::sm_class##basename2,                    \
 191             wxT(#basename2), (int) sizeof(name),                \
 192             (wxObjectConstructorFn) wxConstructorFor##name);
 193
 194 // -----------------------------------
 195 // for abstract classes
 196 // -----------------------------------
 197
 198     // Single inheritance with one base class
 199
 200 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)                \
 201  wxClassInfo name::sm_class##name(wxT(#name),                   \
 202             &basename::sm_class##basename, NULL,                \
 203             (int) sizeof(name), (wxObjectConstructorFn) 0);
 204
 205     // Multiple inheritance with two base classes
 206
 207 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)   \
 208  wxClassInfo name::sm_class##name(wxT(#name),                   \
 209             &basename1::sm_class##basename1,                    \
 210             &basename2::sm_class##basename2,                    \
 211             (int) sizeof(name),                                 \
 212             (wxObjectConstructorFn) 0);
 213
 214 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 215 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 216
 217 #endif // !wxUSE_EXTENDED_RTTI
 218
 219
 220 // -----------------------------------
 221 // for pluggable classes
 222 // -----------------------------------
 223
 224     // NOTE: this should probably be the very first statement
 225     //       in the class declaration so wxPluginSentinel is
 226     //       the first member initialised and the last destroyed.
 227
 228 // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
 229
 230 #if wxUSE_NESTED_CLASSES
 231
 232 #define _DECLARE_DL_SENTINEL(name, exportdecl)  \
 233 class exportdecl name##PluginSentinel {         \
 234 private:                                        \
 235     static const wxString sm_className;         \
 236 public:                                         \
 237     name##PluginSentinel();                     \
 238     ~name##PluginSentinel();                    \
 239 };                                              \
 240 name##PluginSentinel  m_pluginsentinel;
 241
 242 #define _IMPLEMENT_DL_SENTINEL(name)                                \
 243  const wxString name::name##PluginSentinel::sm_className(#name);    \
 244  name::name##PluginSentinel::name##PluginSentinel() {               \
 245     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 246     if( e != 0 ) { e->RefObj(); }                                      \
 247  }                                                                  \
 248  name::name##PluginSentinel::~name##PluginSentinel() {            \
 249     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 250     if( e != 0 ) { e->UnrefObj(); }                                 \
 251  }
 252 #else
 253
 254 #define _DECLARE_DL_SENTINEL(name)
 255 #define _IMPLEMENT_DL_SENTINEL(name)
 256
 257 #endif  // wxUSE_NESTED_CLASSES
 258
 259 #define DECLARE_PLUGGABLE_CLASS(name) \
 260  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 261 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
 262  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 263
 264 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
 265  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 266 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
 267  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 268
 269 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
 270  IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 271 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 272  IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 273 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 274  IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 275 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 276  IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 277
 278 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
 279  IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 280 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 281  IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 282 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 283  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 284 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 285  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 286
 287 #define CLASSINFO(name) (&name::sm_class##name)
 288
 289 #else // !wxUSE_DYNAMIC_CLASSES
 290
 291     // No dynamic class system: so stub out the macros
 292
 293 #define DECLARE_DYNAMIC_CLASS(name)
 294 #define DECLARE_ABSTRACT_CLASS(name)
 295 #define DECLARE_CLASS(name)
 296 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)
 297 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)
 298 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)
 299 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)
 300 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 301 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 302
 303 #define DECLARE_PLUGGABLE_CLASS(name)
 304 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)
 305 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 306 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 307 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 308 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 309
 310 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo)
 311 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)
 312 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename)
 313 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)
 314 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 315 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 316
 317 #endif // wxUSE_DYNAMIC_CLASSES
 318
 319 #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
 320
 321 // Just seems a bit nicer-looking (pretend it's not a macro)
 322 #define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className)
 323
 324 // to be replaced by dynamic_cast<> in the future
 325 #define wxDynamicCast(obj, className) \
 326  ((className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className))
 327
 328 // The 'this' pointer is always true, so use this version
 329 // to cast the this pointer and avoid compiler warnings.
 330 #define wxDynamicCastThis(className) \
 331  (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0)
 332
 333 #ifdef HAVE_CONST_CAST
 334 #define wxConstCast(obj, className) const_cast<className *>(obj)
 335 #else
 336 #define wxConstCast(obj, className) ((className *)(obj))
 337 #endif
 338
 339
 340 #ifdef __WXDEBUG__
 341 inline void wxCheckCast(void *ptr)
 342 {
 343     wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
 344 }
 345 #define wxStaticCast(obj, className) \
 346  (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
 347
 348 #else  // !__WXDEBUG__
 349 #define wxStaticCast(obj, className) ((className *)(obj))
 350
 351 #endif  // __WXDEBUG__
 352
 353 // ----------------------------------------------------------------------------
 354 // set up memory debugging macros
 355 // ----------------------------------------------------------------------------
 356
 357 /*
 358     Which new/delete operator variants do we want?
 359
 360     _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
 361     _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
 362     _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
 363     _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
 364     _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
 365     _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
 366     _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
 367 */
 368
 369 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 370
 371 // All compilers get this one
 372 #define _WX_WANT_NEW_SIZET_WXCHAR_INT
 373
 374 // Everyone except Visage gets the next one
 375 #ifndef __VISAGECPP__
 376     #define _WX_WANT_DELETE_VOID
 377 #endif
 378
 379 // Only visage gets this one under the correct circumstances
 380 #if defined(__VISAGECPP__) && __DEBUG_ALLOC__
 381     #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 382 #endif
 383
 384 // Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
 385 #if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
 386     #define _WX_WANT_DELETE_VOID_WXCHAR_INT
 387 #endif
 388
 389 // Now see who (if anyone) gets the array memory operators
 390 #if wxUSE_ARRAY_MEMORY_OPERATORS
 391
 392     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 393     #if !defined(__VISUALC__)
 394         #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 395     #endif
 396
 397     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 398     #if !defined(__VISUALC__)
 399         #define _WX_WANT_ARRAY_DELETE_VOID
 400     #endif
 401
 402     // Only CodeWarrior 6 or higher
 403     #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
 404         #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 405     #endif
 406
 407 #endif // wxUSE_ARRAY_MEMORY_OPERATORS
 408
 409 #endif // WXDEBUG && wxUSE_MEMORY_TRACING
 410
 411 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
 412 // needed by wxObject::Dump
 413 #include "wx/iosfwrap.h"
 414 #endif
 415
 416 // ----------------------------------------------------------------------------
 417 // wxObject: the root class of wxWindows object hierarchy
 418 // ----------------------------------------------------------------------------
 419
 420 class WXDLLIMPEXP_BASE wxObject
 421 {
 422     DECLARE_ABSTRACT_CLASS(wxObject)
 423
 424 private:
 425     void InitFrom(const wxObject& other);
 426
 427 public:
 428     wxObject() { m_refData = NULL; }
 429     virtual ~wxObject() { UnRef(); }
 430
 431     wxObject(const wxObject& other)
 432         {
 433             InitFrom(other);
 434         }
 435
 436     wxObject& operator=(const wxObject& other)
 437     {
 438         if ( this != &other )
 439         {
 440             UnRef();
 441             InitFrom(other);
 442         }
 443         return *this;
 444     }
 445
 446     bool IsKindOf(wxClassInfo *info) const;
 447
 448
 449     // Turn on the correct set of new and delete operators
 450
 451 #ifdef _WX_WANT_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_DELETE_VOID
 456     void operator delete ( void * buf );
 457 #endif
 458
 459 #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 460     void operator delete ( void *buf, const char *_fname, size_t _line );
 461 #endif
 462
 463 #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
 464     void operator delete ( void *buf, const wxChar*, int );
 465 #endif
 466
 467 #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 468     void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 469 #endif
 470
 471 #ifdef _WX_WANT_ARRAY_DELETE_VOID
 472     void operator delete[] ( void *buf );
 473 #endif
 474
 475 #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 476     void operator delete[] (void* buf, const wxChar*, int );
 477 #endif
 478
 479
 480 #if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
 481     virtual void Dump(wxSTD ostream& str);
 482 #endif
 483
 484     // ref counted data handling methods
 485
 486     // get/set
 487     wxObjectRefData *GetRefData() const { return m_refData; }
 488     void SetRefData(wxObjectRefData *data) { m_refData = data; }
 489
 490     // make a 'clone' of the object
 491     void Ref(const wxObject& clone);
 492
 493     // destroy a reference
 494     void UnRef();
 495
 496 protected:
 497     // ensure that our data is not shared with anybody else: if we have no
 498     // data, it is created using CreateRefData() below, if we have shared data
 499     // it is copied using CloneRefData(), otherwise nothing is done
 500     void AllocExclusive();
 501
 502     // both methods must be implemented if Unshare() is used, not pure virtual
 503     // only because of the backwards compatibility reasons
 504
 505     // create a new m_refData
 506     virtual wxObjectRefData *CreateRefData() const;
 507
 508     // create a new m_refData initialized with the given one
 509     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 510
 511     wxObjectRefData *m_refData;
 512 };
 513
 514 // ----------------------------------------------------------------------------
 515 // wxObjectRefData: ref counted data meant to be stored in wxObject
 516 // ----------------------------------------------------------------------------
 517
 518 class WXDLLIMPEXP_BASE wxObjectRefData
 519 {
 520     friend class WXDLLIMPEXP_BASE wxObject;
 521
 522 public:
 523     wxObjectRefData() : m_count(1) { }
 524     virtual ~wxObjectRefData() { }
 525
 526     int GetRefCount() const { return m_count; }
 527
 528 private:
 529     int m_count;
 530 };
 531
 532
 533 inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 534 {
 535     return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 536 }
 537
 538 // ----------------------------------------------------------------------------
 539 // more debugging macros
 540 // ----------------------------------------------------------------------------
 541
 542 #ifdef __WXDEBUG__
 543     #ifndef WXDEBUG_NEW
 544         #define WXDEBUG_NEW new(__TFILE__,__LINE__)
 545     #endif
 546 #else // !__WXDEBUG__
 547     #define WXDEBUG_NEW new
 548 #endif
 549
 550 // Redefine new to be the debugging version. This doesn't work with all
 551 // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
 552 // to use the debugging version.
 553
 554 #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 555     #define new new(__TFILE__,__LINE__)
 556 #endif
 557
 558 #endif  // _WX_OBJECTH__
 559