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/memory.h"
  21
  22 class WXDLLIMPEXP_BASE wxObject;
  23
  24 #ifndef wxUSE_EXTENDED_RTTI
  25 #define wxUSE_EXTENDED_RTTI 0
  26 #endif
  27
  28 #if wxUSE_EXTENDED_RTTI
  29 #include "wx/xti.h"
  30 #else
  31
  32 // ----------------------------------------------------------------------------
  33 // conditional compilation
  34 // ----------------------------------------------------------------------------
  35
  36 class WXDLLIMPEXP_BASE wxClassInfo;
  37 class WXDLLIMPEXP_BASE wxHashTable;
  38 class WXDLLIMPEXP_BASE wxObjectRefData;
  39
  40 // ----------------------------------------------------------------------------
  41 // wxClassInfo
  42 // ----------------------------------------------------------------------------
  43
  44 typedef wxObject *(*wxObjectConstructorFn)(void);
  45
  46 class WXDLLIMPEXP_BASE wxClassInfo
  47 {
  48 public:
  49     wxClassInfo( const wxChar *className,
  50                  const wxClassInfo *baseInfo1,
  51                  const wxClassInfo *baseInfo2,
  52                  int size,
  53                  wxObjectConstructorFn ctor )
  54         : m_className(className)
  55         , m_objectSize(size)
  56         , m_objectConstructor(ctor)
  57         , m_baseInfo1(baseInfo1)
  58         , m_baseInfo2(baseInfo2)
  59         , m_next(sm_first)
  60         {
  61             sm_first = this;
  62             Register();
  63         }
  64
  65     ~wxClassInfo();
  66
  67     wxObject *CreateObject() const
  68         { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
  69     bool IsDynamic() const { return (NULL != m_objectConstructor); }
  70
  71     const wxChar       *GetClassName() const { return m_className; }
  72     const wxChar       *GetBaseClassName1() const
  73         { return m_baseInfo1 ? m_baseInfo1->GetClassName() : NULL; }
  74     const wxChar       *GetBaseClassName2() const
  75         { return m_baseInfo2 ? m_baseInfo2->GetClassName() : NULL; }
  76     const wxClassInfo  *GetBaseClass1() const { return m_baseInfo1; }
  77     const wxClassInfo  *GetBaseClass2() const { return m_baseInfo2; }
  78     int                 GetSize() const { return m_objectSize; }
  79
  80     wxObjectConstructorFn      GetConstructor() const
  81         { return m_objectConstructor; }
  82     static const wxClassInfo  *GetFirst() { return sm_first; }
  83     const wxClassInfo         *GetNext() const { return m_next; }
  84     static wxClassInfo        *FindClass(const wxChar *className);
  85
  86         // Climb upwards through inheritance hierarchy.
  87         // Dual inheritance is catered for.
  88
  89     bool IsKindOf(const wxClassInfo *info) const
  90     {
  91         return info != 0 &&
  92                ( info == this ||
  93                  ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) ||
  94                  ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
  95     }
  96
  97 public:
  98     const wxChar            *m_className;
  99     int                      m_objectSize;
 100     wxObjectConstructorFn    m_objectConstructor;
 101
 102         // Pointers to base wxClassInfos
 103
 104     const wxClassInfo       *m_baseInfo1;
 105     const wxClassInfo       *m_baseInfo2;
 106
 107         // class info object live in a linked list:
 108         // pointers to its head and the next element in it
 109
 110     static wxClassInfo      *sm_first;
 111     wxClassInfo             *m_next;
 112
 113     // FIXME: this should be private (currently used directly by way too
 114     //        many clients)
 115     static wxHashTable      *sm_classTable;
 116
 117 protected:
 118     // registers the class
 119     void Register();
 120     void Unregister();
 121
 122     DECLARE_NO_COPY_CLASS(wxClassInfo)
 123 };
 124
 125 WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name);
 126
 127 // ----------------------------------------------------------------------------
 128 // Dynamic class macros
 129 // ----------------------------------------------------------------------------
 130
 131 #define DECLARE_ABSTRACT_CLASS(name)                                          \
 132     public:                                                                   \
 133         static wxClassInfo ms_classInfo;                                      \
 134         virtual wxClassInfo *GetClassInfo() const;
 135
 136 #define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(name)                                 \
 137     DECLARE_NO_ASSIGN_CLASS(name)                                             \
 138     DECLARE_DYNAMIC_CLASS(name)
 139
 140 #define DECLARE_DYNAMIC_CLASS_NO_COPY(name)                                   \
 141     DECLARE_NO_COPY_CLASS(name)                                               \
 142     DECLARE_DYNAMIC_CLASS(name)
 143
 144 #define DECLARE_DYNAMIC_CLASS(name)                                           \
 145     DECLARE_ABSTRACT_CLASS(name)                                              \
 146     static wxObject* wxCreateObject();
 147
 148 #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
 149
 150
 151 // common part of the macros below
 152 #define wxIMPLEMENT_CLASS_COMMON(name, basename, baseclsinfo2, func)          \
 153     wxClassInfo name::ms_classInfo(wxT(#name),                                \
 154             &basename::ms_classInfo,                                          \
 155             baseclsinfo2,                                                     \
 156             (int) sizeof(name),                                               \
 157             (wxObjectConstructorFn) func);                                    \
 158                                                                               \
 159     wxClassInfo *name::GetClassInfo() const                                   \
 160         { return &name::ms_classInfo; }
 161
 162 #define wxIMPLEMENT_CLASS_COMMON1(name, basename, func)                       \
 163     wxIMPLEMENT_CLASS_COMMON(name, basename, NULL, func)
 164
 165 #define wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, func)           \
 166     wxIMPLEMENT_CLASS_COMMON(name, basename1, &basename2::ms_classInfo, func)
 167
 168 // -----------------------------------
 169 // for concrete classes
 170 // -----------------------------------
 171
 172     // Single inheritance with one base class
 173 #define IMPLEMENT_DYNAMIC_CLASS(name, basename)                               \
 174     wxIMPLEMENT_CLASS_COMMON1(name, basename, name::wxCreateObject)           \
 175     wxObject* name::wxCreateObject()                                          \
 176         { return new name; }
 177
 178     // Multiple inheritance with two base classes
 179 #define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)                  \
 180     wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2,                     \
 181                               name::wxCreateObject)                           \
 182     wxObject* name::wxCreateObject()                                          \
 183         { return new name; }
 184
 185 // -----------------------------------
 186 // for abstract classes
 187 // -----------------------------------
 188
 189     // Single inheritance with one base class
 190
 191 #define IMPLEMENT_ABSTRACT_CLASS(name, basename)                              \
 192     wxIMPLEMENT_CLASS_COMMON1(name, basename, NULL)
 193
 194     // Multiple inheritance with two base classes
 195
 196 #define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)                 \
 197     wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, NULL)
 198
 199 #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
 200 #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
 201
 202 #endif // !wxUSE_EXTENDED_RTTI
 203
 204
 205 // -----------------------------------
 206 // for pluggable classes
 207 // -----------------------------------
 208
 209     // NOTE: this should probably be the very first statement
 210     //       in the class declaration so wxPluginSentinel is
 211     //       the first member initialised and the last destroyed.
 212
 213 // _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
 214
 215 #if wxUSE_NESTED_CLASSES
 216
 217 #define _DECLARE_DL_SENTINEL(name, exportdecl)  \
 218 class exportdecl name##PluginSentinel {         \
 219 private:                                        \
 220     static const wxString sm_className;         \
 221 public:                                         \
 222     name##PluginSentinel();                     \
 223     ~name##PluginSentinel();                    \
 224 };                                              \
 225 name##PluginSentinel  m_pluginsentinel;
 226
 227 #define _IMPLEMENT_DL_SENTINEL(name)                                \
 228  const wxString name::name##PluginSentinel::sm_className(#name);    \
 229  name::name##PluginSentinel::name##PluginSentinel() {               \
 230     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 231     if( e != 0 ) { e->RefObj(); }                                      \
 232  }                                                                  \
 233  name::name##PluginSentinel::~name##PluginSentinel() {            \
 234     wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
 235     if( e != 0 ) { e->UnrefObj(); }                                 \
 236  }
 237 #else
 238
 239 #define _DECLARE_DL_SENTINEL(name)
 240 #define _IMPLEMENT_DL_SENTINEL(name)
 241
 242 #endif  // wxUSE_NESTED_CLASSES
 243
 244 #define DECLARE_PLUGGABLE_CLASS(name) \
 245  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 246 #define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
 247  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
 248
 249 #define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
 250  DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 251 #define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
 252  DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
 253
 254 #define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
 255  IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 256 #define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 257  IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 258 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 259  IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
 260 #define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 261  IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
 262
 263 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
 264  IMPLEMENT_PLUGGABLE_CLASS(name, basename)
 265 #define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 266  IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
 267 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
 268  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
 269 #define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
 270  IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
 271
 272 #define CLASSINFO(name) (&name::ms_classInfo)
 273
 274 #define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo)
 275
 276 // Just seems a bit nicer-looking (pretend it's not a macro)
 277 #define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo)
 278
 279 // this cast does some more checks at compile time as it uses static_cast
 280 // internally
 281 //
 282 // note that it still has different semantics from dynamic_cast<> and so can't
 283 // be replaced by it as long as there are any compilers not supporting it
 284 #define wxDynamicCast(obj, className) \
 285     ((className *) wxCheckDynamicCast( \
 286         wx_const_cast(wxObject *, wx_static_cast(const wxObject *, \
 287           wx_const_cast(className *, wx_static_cast(const className *, obj)))), \
 288         &className::ms_classInfo))
 289
 290 // The 'this' pointer is always true, so use this version
 291 // to cast the this pointer and avoid compiler warnings.
 292 #define wxDynamicCastThis(className) \
 293      (IsKindOf(&className::ms_classInfo) ? (className *)(this) : (className *)0)
 294
 295 #ifdef __WXDEBUG__
 296 inline void* wxCheckCast(void *ptr)
 297 {
 298     wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
 299     return ptr;
 300 }
 301 #define wxStaticCast(obj, className) \
 302  ((className *)wxCheckCast(wxDynamicCast(obj, className)))
 303
 304 #else  // !__WXDEBUG__
 305 #define wxStaticCast(obj, className) \
 306     wx_const_cast(className *, wx_static_cast(const className *, obj))
 307
 308 #endif  // __WXDEBUG__
 309
 310 // ----------------------------------------------------------------------------
 311 // set up memory debugging macros
 312 // ----------------------------------------------------------------------------
 313
 314 /*
 315     Which new/delete operator variants do we want?
 316
 317     _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
 318     _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
 319     _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
 320     _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
 321     _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
 322     _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
 323     _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
 324 */
 325
 326 #if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
 327
 328 // All compilers get this one
 329 #define _WX_WANT_NEW_SIZET_WXCHAR_INT
 330
 331 // Everyone except Visage gets the next one
 332 #ifndef __VISAGECPP__
 333     #define _WX_WANT_DELETE_VOID
 334 #endif
 335
 336 // Only visage gets this one under the correct circumstances
 337 #if defined(__VISAGECPP__) && __DEBUG_ALLOC__
 338     #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 339 #endif
 340
 341 // Only VC++ 6 and CodeWarrior get overloaded delete that matches new
 342 #if (defined(__VISUALC__) && (__VISUALC__ >= 1200)) || \
 343         (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
 344     #define _WX_WANT_DELETE_VOID_WXCHAR_INT
 345 #endif
 346
 347 // Now see who (if anyone) gets the array memory operators
 348 #if wxUSE_ARRAY_MEMORY_OPERATORS
 349
 350     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 351     #if !defined(__VISUALC__)
 352         #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 353     #endif
 354
 355     // Everyone except Visual C++ (cause problems for VC++ - crashes)
 356     #if !defined(__VISUALC__)
 357         #define _WX_WANT_ARRAY_DELETE_VOID
 358     #endif
 359
 360     // Only CodeWarrior 6 or higher
 361     #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
 362         #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 363     #endif
 364
 365 #endif // wxUSE_ARRAY_MEMORY_OPERATORS
 366
 367 #endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING
 368
 369 // ----------------------------------------------------------------------------
 370 // wxObjectRefData: ref counted data meant to be stored in wxObject
 371 // ----------------------------------------------------------------------------
 372
 373 class WXDLLIMPEXP_BASE wxObjectRefData
 374 {
 375     friend class WXDLLIMPEXP_BASE wxObject;
 376
 377 public:
 378     wxObjectRefData() : m_count(1) { }
 379
 380     int GetRefCount() const { return m_count; }
 381
 382     void IncRef() { m_count++; }
 383     void DecRef();
 384
 385 protected:
 386     // this object should never be destroyed directly but only as a
 387     // result of a DecRef() call:
 388     virtual ~wxObjectRefData() { }
 389
 390 private:
 391     // our refcount:
 392     int m_count;
 393 };
 394
 395 // ----------------------------------------------------------------------------
 396 // wxObjectDataPtr: helper class to avoid memleaks because of missing calls
 397 //                  to wxObjectRefData::DecRef
 398 // ----------------------------------------------------------------------------
 399
 400 template <class T>
 401 class wxObjectDataPtr
 402 {
 403 public:
 404     typedef T element_type;
 405
 406     wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {}
 407
 408     // copy ctor
 409     wxObjectDataPtr(const wxObjectDataPtr<T> &tocopy)
 410         : m_ptr(tocopy.m_ptr)
 411     {
 412         if (m_ptr)
 413             m_ptr->IncRef();
 414     }
 415
 416     ~wxObjectDataPtr()
 417     {
 418         if (m_ptr)
 419             m_ptr->DecRef();
 420     }
 421
 422     T *get() const { return m_ptr; }
 423     T *operator->() const { return get(); }
 424
 425     void reset(T *ptr)
 426     {
 427         if (m_ptr)
 428             m_ptr->DecRef();
 429         m_ptr = ptr;
 430     }
 431
 432     wxObjectDataPtr& operator=(const wxObjectDataPtr &tocopy)
 433     {
 434         if (m_ptr)
 435             m_ptr->DecRef();
 436         m_ptr = tocopy.m_ptr;
 437         if (m_ptr)
 438             m_ptr->IncRef();
 439         return *this;
 440     }
 441
 442     wxObjectDataPtr& operator=(T *ptr)
 443     {
 444         if (m_ptr)
 445             m_ptr->DecRef();
 446         m_ptr = ptr;
 447         if (m_ptr)
 448             m_ptr->IncRef();
 449         return *this;
 450     }
 451
 452 private:
 453     T *m_ptr;
 454 };
 455
 456 // ----------------------------------------------------------------------------
 457 // wxObject: the root class of wxWidgets object hierarchy
 458 // ----------------------------------------------------------------------------
 459
 460 class WXDLLIMPEXP_BASE wxObject
 461 {
 462     DECLARE_ABSTRACT_CLASS(wxObject)
 463
 464 public:
 465     wxObject() { m_refData = NULL; }
 466     virtual ~wxObject() { UnRef(); }
 467
 468     wxObject(const wxObject& other)
 469     {
 470          m_refData = other.m_refData;
 471          if (m_refData)
 472              m_refData->m_count++;
 473     }
 474
 475     wxObject& operator=(const wxObject& other)
 476     {
 477         if ( this != &other )
 478         {
 479             Ref(other);
 480         }
 481         return *this;
 482     }
 483
 484     bool IsKindOf(wxClassInfo *info) const;
 485
 486
 487     // Turn on the correct set of new and delete operators
 488
 489 #ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
 490     void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 491 #endif
 492
 493 #ifdef _WX_WANT_DELETE_VOID
 494     void operator delete ( void * buf );
 495 #endif
 496
 497 #ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
 498     void operator delete ( void *buf, const char *_fname, size_t _line );
 499 #endif
 500
 501 #ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
 502     void operator delete ( void *buf, const wxChar*, int );
 503 #endif
 504
 505 #ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
 506     void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
 507 #endif
 508
 509 #ifdef _WX_WANT_ARRAY_DELETE_VOID
 510     void operator delete[] ( void *buf );
 511 #endif
 512
 513 #ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 514     void operator delete[] (void* buf, const wxChar*, int );
 515 #endif
 516
 517     // ref counted data handling methods
 518
 519     // get/set
 520     wxObjectRefData *GetRefData() const { return m_refData; }
 521     void SetRefData(wxObjectRefData *data) { m_refData = data; }
 522
 523     // make a 'clone' of the object
 524     void Ref(const wxObject& clone);
 525
 526     // destroy a reference
 527     void UnRef();
 528
 529     // Make sure this object has only one reference
 530     void UnShare() { AllocExclusive(); }
 531
 532     // check if this object references the same data as the other one
 533     bool IsSameAs(const wxObject& o) const { return m_refData == o.m_refData; }
 534
 535 protected:
 536     // ensure that our data is not shared with anybody else: if we have no
 537     // data, it is created using CreateRefData() below, if we have shared data
 538     // it is copied using CloneRefData(), otherwise nothing is done
 539     void AllocExclusive();
 540
 541     // both methods must be implemented if AllocExclusive() is used, not pure
 542     // virtual only because of the backwards compatibility reasons
 543
 544     // create a new m_refData
 545     virtual wxObjectRefData *CreateRefData() const;
 546
 547     // create a new m_refData initialized with the given one
 548     virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 549
 550     wxObjectRefData *m_refData;
 551 };
 552
 553 inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 554 {
 555     return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 556 }
 557
 558 #if wxUSE_EXTENDED_RTTI
 559 class WXDLLIMPEXP_BASE wxDynamicObject : public wxObject
 560 {
 561     friend class WXDLLIMPEXP_BASE wxDynamicClassInfo ;
 562 public:
 563     // instantiates this object with an instance of its superclass
 564     wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info) ;
 565     virtual ~wxDynamicObject();
 566
 567     void SetProperty (const wxChar *propertyName, const wxxVariant &value);
 568     wxxVariant GetProperty (const wxChar *propertyName) const ;
 569
 570     // get the runtime identity of this object
 571     wxClassInfo *GetClassInfo() const
 572     {
 573 #ifdef _MSC_VER
 574         return (wxClassInfo*) m_classInfo;
 575 #else
 576         wxDynamicClassInfo *nonconst = wx_const_cast(wxDynamicClassInfo *, m_classInfo);
 577         return wx_static_cast(wxClassInfo *, nonconst);
 578 #endif
 579     }
 580
 581     wxObject* GetSuperClassInstance() const
 582     {
 583         return m_superClassInstance ;
 584     }
 585 private :
 586     // removes an existing runtime-property
 587     void RemoveProperty( const wxChar *propertyName ) ;
 588
 589     // renames an existing runtime-property
 590     void RenameProperty( const wxChar *oldPropertyName , const wxChar *newPropertyName ) ;
 591
 592     wxObject *m_superClassInstance ;
 593     const wxDynamicClassInfo *m_classInfo;
 594     struct wxDynamicObjectInternal;
 595     wxDynamicObjectInternal *m_data;
 596 };
 597 #endif
 598
 599 // ----------------------------------------------------------------------------
 600 // more debugging macros
 601 // ----------------------------------------------------------------------------
 602
 603 // Redefine new to be the debugging version. This doesn't work with all
 604 // compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
 605 // to use the debugging version.
 606
 607 #ifdef __WXDEBUG__
 608     #define WXDEBUG_NEW new(__TFILE__,__LINE__)
 609
 610     #if wxUSE_DEBUG_NEW_ALWAYS
 611         #if wxUSE_GLOBAL_MEMORY_OPERATORS
 612             #define new WXDEBUG_NEW
 613         #elif defined(__VISUALC__)
 614             // Including this file redefines new and allows leak reports to
 615             // contain line numbers
 616             #include "wx/msw/msvcrt.h"
 617         #endif
 618     #endif // wxUSE_DEBUG_NEW_ALWAYS
 619 #else // !__WXDEBUG__
 620     #define WXDEBUG_NEW new
 621 #endif // __WXDEBUG__/!__WXDEBUG__
 622
 623 #endif // _WX_OBJECTH__