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 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/defs.h"
  21 #include "wx/memory.h"
  22
  23 class WXDLLIMPEXP_BASE wxObject;
  24
  25 #ifndef wxUSE_EXTENDED_RTTI
  26 #define wxUSE_EXTENDED_RTTI 0
  27 #endif
  28
  29 #if wxUSE_EXTENDED_RTTI
  30 #include "wx/xti.h"
  31 #else
  32
  33 // ----------------------------------------------------------------------------
  34 // conditional compilation
  35 // ----------------------------------------------------------------------------
  36
  37 // this shouldn't be needed any longer as <wx/msw/private.h> does it but it
  38 // doesn't hurt neither
  39 #ifdef GetClassName
  40 #undef GetClassName
  41 #endif
  42 #ifdef GetClassInfo
  43 #undef GetClassInfo
  44 #endif
  45
  46 class WXDLLIMPEXP_BASE wxClassInfo;
  47 class WXDLLIMPEXP_BASE wxHashTable;
  48 class WXDLLIMPEXP_BASE wxObjectRefData;
  49
  50 // ----------------------------------------------------------------------------
  51 // wxClassInfo
  52 // ----------------------------------------------------------------------------
  53
  54 typedef wxObject *(*wxObjectConstructorFn)(void);
  55
  56 class WXDLLIMPEXP_BASE wxClassInfo
  57 {
  58 public:
  59     wxClassInfo( const wxChar *className,
  60                  const wxClassInfo *baseInfo1,
  61                  const wxClassInfo *baseInfo2,
  62                  int size,
  63                  wxObjectConstructorFn ctor )
  64         : m_className(className)
  65         , m_objectSize(size)
  66         , m_objectConstructor(ctor)
  67         , m_baseInfo1(baseInfo1)
  68         , m_baseInfo2(baseInfo2)
  69         , m_next(sm_first)
  70         {
  71             sm_first = this;
  72             Register();
  73         }
  74
  75     ~wxClassInfo();
  76
  77     wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
  78
  79     const wxChar       *GetClassName() const { return m_className; }
  80     const wxChar       *GetBaseClassName1() const
  81         { return m_baseInfo1 ? m_baseInfo1->GetClassName() : NULL; }
  82     const wxChar       *GetBaseClassName2() const
  83         { return m_baseInfo2 ? m_baseInfo2->GetClassName() : NULL; }
  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 #if WXWIN_COMPATIBILITY_2_4
 105     // Initializes parent pointers and hash table for fast searching.
 106     wxDEPRECATED( static void InitializeClasses() );
 107     // Cleans up hash table used for fast searching.
 108     wxDEPRECATED( static void CleanUpClasses() );
 109 #endif
 110     static void     CleanUp();
 111
 112 public:
 113     const wxChar            *m_className;
 114     int                      m_objectSize;
 115     wxObjectConstructorFn    m_objectConstructor;
 116
 117         // Pointers to base wxClassInfos: set in InitializeClasses
 118
 119     const wxClassInfo       *m_baseInfo1;
 120     const wxClassInfo       *m_baseInfo2;
 121
 122         // class info object live in a linked list:
 123         // pointers to its head and the next element in it
 124
 125     static wxClassInfo      *sm_first;
 126     wxClassInfo             *m_next;
 127
 128     // FIXME: this should be private (currently used directly by way too
 129     //        many clients)
 130     static wxHashTable      *sm_classTable;
 131
 132 private:
 133     // InitializeClasses() helper
 134     static wxClassInfo *GetBaseByName(const wxChar *name);
 135
 136     DECLARE_NO_COPY_CLASS(wxClassInfo)
 137
 138 protected:
 139     // registers the class
 140     void Register();
 141     void Unregister();
 142 };
 143
 144 WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name);
 145
 146 #if WXWIN_COMPATIBILITY_2_4
 147 inline void wxClassInfo::InitializeClasses() {}
 148 inline void wxClassInfo::CleanUpClasses() {}
 149 #endif
 150
 151 // ----------------------------------------------------------------------------
 152 // Dynamic class macros
 153 // ----------------------------------------------------------------------------
 154
 155 #define DECLARE_ABSTRACT_CLASS(name)                                          \
 156     public:                                                                   \
 157         static wxClassInfo ms_classInfo;                                      \
 158         virtual wxClassInfo *GetClassInfo() const;
 159
 160 #define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(name)                                 \
 161     DECLARE_NO_ASSIGN_CLASS(name)                                             \
 162     DECLARE_DYNAMIC_CLASS(name)
 163
 164 #define DECLARE_DYNAMIC_CLASS_NO_COPY(name)                                   \
 165     DECLARE_NO_COPY_CLASS(name)                                               \
 166     DECLARE_DYNAMIC_CLASS(name)
 167
 168 #define DECLARE_DYNAMIC_CLASS(name)                                           \
 169     DECLARE_ABSTRACT_CLASS(name)                                              \
 170     static wxObject* wxCreateObject();
 171
 172 #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 173
 174
 175 // common part of the macros below
 176 #define wxIMPLEMENT_CLASS_COMMON(name, basename, baseclsinfo2, func)          \
 177     wxClassInfo name::ms_classInfo(wxT(#name),                                \
 178             &basename::ms_classInfo,                                          \
 179             baseclsinfo2,                                                     \
 180             (int) sizeof(name),                                               \
 181             (wxObjectConstructorFn) func);                                    \
 182                                                                               \
 183     wxClassInfo *name::GetClassInfo() const                                   \
 184         { return &name::ms_classInfo; }
 185
 186 #define wxIMPLEMENT_CLASS_COMMON1(name, basename, func)                       \
 187     wxIMPLEMENT_CLASS_COMMON(name, basename, NULL, func)
 188
 189 #define wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, func)           \
 190     wxIMPLEMENT_CLASS_COMMON(name, basename1, &basename2::ms_classInfo, func)
 191
 192 // -----------------------------------
 193 // for concrete classes
 194 // -----------------------------------
 195
 196     // Single inheritance with one base class
 197 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)                               \
 198     wxIMPLEMENT_CLASS_COMMON1(name, basename, name::wxCreateObject)           \
 199     wxObject* name::wxCreateObject()                                          \
 200         { return new name; }
 201
 202     // Multiple inheritance with two base classes
 203 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)                  \
 204     wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2,                     \
 205                               name::wxCreateObject)                           \
 206     wxObject* name::wxCreateObject()                                          \
 207         { return new name; }
 208
 209 // -----------------------------------
 210 // for abstract classes
 211 // -----------------------------------
 212
 213     // Single inheritance with one base class
 214
 215 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)                              \
 216     wxIMPLEMENT_CLASS_COMMON1(name, basename, NULL)
 217
 218     // Multiple inheritance with two base classes
 219
 220 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)                 \
 221     wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, NULL)
 222
 223 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 224 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 225
 226 #endif // !wxUSE_EXTENDED_RTTI
 227
 228
 229 // -----------------------------------
 230 // for pluggable classes
 231 // -----------------------------------
 232
 233     // NOTE: this should probably be the very first statement
 234     //       in the class declaration so wxPluginSentinel is
 235     //       the first member initialised and the last destroyed.
 236
 237 // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
 238
 239 #if wxUSE_NESTED_CLASSES
 240
 241 #define _DECLARE_DL_SENTINEL(name, exportdecl)  \
 242 class exportdecl name##PluginSentinel {         \
 243 private:                                        \
 244     static const wxString sm_className;         \
 245 public:                                         \
 246     name##PluginSentinel();                     \
 247     ~name##PluginSentinel();                    \
 248 };                                              \
 249 name##PluginSentinel  m_pluginsentinel;
 250
 251 #define _IMPLEMENT_DL_SENTINEL(name)                                \
 252  const wxString name::name##PluginSentinel::sm_className(#name);    \
 253  name::name##PluginSentinel::name##PluginSentinel() {               \
 254     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 255     if( e != 0 ) { e->RefObj(); }                                      \
 256  }                                                                  \
 257  name::name##PluginSentinel::~name##PluginSentinel() {            \
 258     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 259     if( e != 0 ) { e->UnrefObj(); }                                 \
 260  }
 261 #else
 262
 263 #define _DECLARE_DL_SENTINEL(name)
 264 #define _IMPLEMENT_DL_SENTINEL(name)
 265
 266 #endif  // wxUSE_NESTED_CLASSES
 267
 268 #define DECLARE_PLUGGABLE_CLASS(name) \
 269  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 270 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
 271  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 272
 273 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
 274  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 275 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
 276  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 277
 278 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
 279  IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 280 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 281  IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 282 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 283  IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 284 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 285  IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 286
 287 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
 288  IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 289 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 290  IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 291 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 292  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 293 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 294  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 295
 296 #define CLASSINFO(name) (&name::ms_classInfo)
 297
 298 #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo)
 299
 300 // Just seems a bit nicer-looking (pretend it's not a macro)
 301 #define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo)
 302
 303 // this cast does some more checks at compile time as it uses static_cast
 304 // internally
 305 //
 306 // note that it still has different semantics from dynamic_cast<> and so can't
 307 // be replaced by it as long as there are any compilers not supporting it
 308 #define wxDynamicCast(obj, className) \
 309     ((className *) wxCheckDynamicCast( \
 310         wx_const_cast(wxObject *, wx_static_cast(const wxObject *, \
 311           wx_const_cast(className *, wx_static_cast(const className *, obj)))), \
 312         &className::ms_classInfo))
 313
 314 // The 'this' pointer is always true, so use this version
 315 // to cast the this pointer and avoid compiler warnings.
 316 #define wxDynamicCastThis(className) \
 317      (IsKindOf(&className::ms_classInfo) ? (className *)(this) : (className *)0)
 318
 319 #ifdef __WXDEBUG__
 320 inline void* wxCheckCast(void *ptr)
 321 {
 322     wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
 323     return ptr;
 324 }
 325 #define wxStaticCast(obj, className) \
 326  ((className *)wxCheckCast(wxDynamicCast(obj, className)))
 327
 328 #else  // !__WXDEBUG__
 329 #define wxStaticCast(obj, className) \
 330     wx_const_cast(className *, wx_static_cast(const className *, obj))
 331
 332 #endif  // __WXDEBUG__
 333
 334 // ----------------------------------------------------------------------------
 335 // set up memory debugging macros
 336 // ----------------------------------------------------------------------------
 337
 338 /*
 339     Which new/delete operator variants do we want?
 340
 341     _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
 342     _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
 343     _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
 344     _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
 345     _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
 346     _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
 347     _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
 348 */
 349
 350 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 351
 352 // All compilers get this one
 353 #define _WX_WANT_NEW_SIZET_WXCHAR_INT
 354
 355 // Everyone except Visage gets the next one
 356 #ifndef __VISAGECPP__
 357     #define _WX_WANT_DELETE_VOID
 358 #endif
 359
 360 // Only visage gets this one under the correct circumstances
 361 #if defined(__VISAGECPP__) && __DEBUG_ALLOC__
 362     #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 363 #endif
 364
 365 // Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
 366 #if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
 367     #define _WX_WANT_DELETE_VOID_WXCHAR_INT
 368 #endif
 369
 370 // Now see who (if anyone) gets the array memory operators
 371 #if wxUSE_ARRAY_MEMORY_OPERATORS
 372
 373     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 374     #if !defined(__VISUALC__)
 375         #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 376     #endif
 377
 378     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 379     #if !defined(__VISUALC__)
 380         #define _WX_WANT_ARRAY_DELETE_VOID
 381     #endif
 382
 383     // Only CodeWarrior 6 or higher
 384     #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
 385         #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 386     #endif
 387
 388 #endif // wxUSE_ARRAY_MEMORY_OPERATORS
 389
 390 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 391
 392 // ----------------------------------------------------------------------------
 393 // wxObject: the root class of wxWidgets object hierarchy
 394 // ----------------------------------------------------------------------------
 395
 396 class WXDLLIMPEXP_BASE wxObject
 397 {
 398     DECLARE_ABSTRACT_CLASS(wxObject)
 399
 400 private:
 401     void InitFrom(const wxObject& other);
 402
 403 public:
 404     wxObject() { m_refData = NULL; }
 405     virtual ~wxObject() { UnRef(); }
 406
 407     wxObject(const wxObject& other)
 408     {
 409         InitFrom(other);
 410     }
 411
 412     wxObject& operator=(const wxObject& other)
 413     {
 414         if ( this != &other )
 415         {
 416             UnRef();
 417             InitFrom(other);
 418         }
 419         return *this;
 420     }
 421
 422     bool IsKindOf(wxClassInfo *info) const;
 423
 424
 425     // Turn on the correct set of new and delete operators
 426
 427 #ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
 428     void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 429 #endif
 430
 431 #ifdef _WX_WANT_DELETE_VOID
 432     void operator delete ( void * buf );
 433 #endif
 434
 435 #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 436     void operator delete ( void *buf, const char *_fname, size_t _line );
 437 #endif
 438
 439 #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
 440     void operator delete ( void *buf, const wxChar*, int );
 441 #endif
 442
 443 #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 444     void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 445 #endif
 446
 447 #ifdef _WX_WANT_ARRAY_DELETE_VOID
 448     void operator delete[] ( void *buf );
 449 #endif
 450
 451 #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 452     void operator delete[] (void* buf, const wxChar*, int );
 453 #endif
 454
 455     // ref counted data handling methods
 456
 457     // get/set
 458     wxObjectRefData *GetRefData() const { return m_refData; }
 459     void SetRefData(wxObjectRefData *data) { m_refData = data; }
 460
 461     // make a 'clone' of the object
 462     void Ref(const wxObject& clone);
 463
 464     // destroy a reference
 465     void UnRef();
 466
 467
 468     // Reserved for future use
 469     virtual void ReservedObjectFunc1() {}
 470     virtual void ReservedObjectFunc2() {}
 471     virtual void ReservedObjectFunc3() {}
 472     virtual void ReservedObjectFunc4() {}
 473     virtual void ReservedObjectFunc5() {}
 474     virtual void ReservedObjectFunc6() {}
 475     virtual void ReservedObjectFunc7() {}
 476     virtual void ReservedObjectFunc8() {}
 477     virtual void ReservedObjectFunc9() {}
 478
 479 protected:
 480     // ensure that our data is not shared with anybody else: if we have no
 481     // data, it is created using CreateRefData() below, if we have shared data
 482     // it is copied using CloneRefData(), otherwise nothing is done
 483     void AllocExclusive();
 484
 485     // both methods must be implemented if Unshare() is used, not pure virtual
 486     // only because of the backwards compatibility reasons
 487
 488     // create a new m_refData
 489     virtual wxObjectRefData *CreateRefData() const;
 490
 491     // create a new m_refData initialized with the given one
 492     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 493
 494     wxObjectRefData *m_refData;
 495 };
 496
 497 // ----------------------------------------------------------------------------
 498 // wxObjectRefData: ref counted data meant to be stored in wxObject
 499 // ----------------------------------------------------------------------------
 500
 501 class WXDLLIMPEXP_BASE wxObjectRefData
 502 {
 503     friend class WXDLLIMPEXP_BASE wxObject;
 504
 505 public:
 506     wxObjectRefData() : m_count(1) { }
 507     virtual ~wxObjectRefData() { }
 508
 509     int GetRefCount() const { return m_count; }
 510
 511 private:
 512     int m_count;
 513 };
 514
 515
 516 inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 517 {
 518     return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 519 }
 520
 521 #if wxUSE_EXTENDED_RTTI
 522 class WXDLLIMPEXP_BASE wxDynamicObject : public wxObject
 523 {
 524     friend class WXDLLIMPEXP_BASE wxDynamicClassInfo ;
 525 public:
 526     // instantiates this object with an instance of its superclass
 527     wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info) ;
 528     ~wxDynamicObject();
 529
 530     void SetProperty (const wxChar *propertyName, const wxxVariant &value);
 531     wxxVariant GetProperty (const wxChar *propertyName) const ;
 532
 533     // get the runtime identity of this object
 534     wxClassInfo *GetClassInfo() const
 535     {
 536 #ifdef _MSC_VER
 537         return (wxClassInfo*) m_classInfo;
 538 #else
 539         return wx_const_cast(wxClassInfo *, m_classInfo);
 540 #endif
 541     }
 542
 543     wxObject* GetSuperClassInstance() const
 544     {
 545         return m_superClassInstance ;
 546     }
 547 private :
 548     // removes an existing runtime-property
 549     void RemoveProperty( const wxChar *propertyName ) ;
 550
 551     // renames an existing runtime-property
 552     void RenameProperty( const wxChar *oldPropertyName , const wxChar *newPropertyName ) ;
 553
 554     wxObject *m_superClassInstance ;
 555     const wxDynamicClassInfo *m_classInfo;
 556     struct wxDynamicObjectInternal;
 557     wxDynamicObjectInternal *m_data;
 558 };
 559 #endif
 560
 561 // ----------------------------------------------------------------------------
 562 // more debugging macros
 563 // ----------------------------------------------------------------------------
 564
 565 #ifdef __WXDEBUG__
 566     #ifndef WXDEBUG_NEW
 567         #define WXDEBUG_NEW new(__TFILE__,__LINE__)
 568     #endif
 569 #else // !__WXDEBUG__
 570     #define WXDEBUG_NEW new
 571 #endif
 572
 573 // Redefine new to be the debugging version. This doesn't work with all
 574 // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
 575 // to use the debugging version.
 576
 577 #if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
 578     #define new new(__TFILE__,__LINE__)
 579 #elif (defined(__WXDEBUG__) && defined(__VISUALC__) && !wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS)
 580     // Including this file redefines new and allows leak reports to contain line numbers
 581     #include "wx/msw/msvcrt.h"
 582 #endif
 583
 584 #endif  // _WX_OBJECTH__
 585