/////////////////////////////////////////////////////////////////////////////
-// Name: object.h
+// Name: wx/object.h
// Purpose: wxObject class, plus run-time type information macros
// Author: Julian Smart
-// Modified by:
+// Modified by: Ron Lee
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows licence
+// Copyright: (c) 1997 Julian Smart and Markus Holzem
+// (c) 2001 Ron Lee <ron@debian.org>
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _WX_OBJECTH__
#pragma interface "object.h"
#endif
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
#include "wx/defs.h"
+#include "wx/memory.h"
class WXDLLEXPORT wxObject;
-#if USE_DYNAMIC_CLASSES
+#if wxUSE_DYNAMIC_CLASSES
+
+// ----------------------------------------------------------------------------
+// conditional compilation
+// ----------------------------------------------------------------------------
-#ifdef __GNUWIN32__
+// this shouldn't be needed any longer as <wx/msw/private.h> does it but it
+// doesn't hurt neither
#ifdef GetClassName
#undef GetClassName
#endif
+#ifdef GetClassInfo
+#undef GetClassInfo
#endif
class WXDLLEXPORT wxClassInfo;
-class WXDLLIMPORT ostream;
-class WXDLLEXPORT wxInputStream;
-class WXDLLEXPORT wxObjectInputStream;
-class WXDLLEXPORT wxObjectOutputStream;
class WXDLLEXPORT wxHashTable;
-class WXDLLEXPORT wxObject_Serialize;
+class WXDLLEXPORT wxObjectRefData;
+
+#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
+ #include "wx/ioswrap.h"
+#endif
-/*
- * Dynamic object system declarations
- */
-typedef wxObject * (*wxObjectConstructorFn) (void);
+// ----------------------------------------------------------------------------
+// wxClassInfo
+// ----------------------------------------------------------------------------
+
+typedef wxObject *(*wxObjectConstructorFn)(void);
class WXDLLEXPORT wxClassInfo
{
- public:
- char *className;
- char *baseClassName1;
- char *baseClassName2;
- int objectSize;
- wxObjectConstructorFn objectConstructor;
-
- // Pointers to base wxClassInfos: set in InitializeClasses
- // called from wx_main.cc
- wxClassInfo *baseInfo1;
- wxClassInfo *baseInfo2;
-
- static wxClassInfo *first;
- wxClassInfo *next;
-
- static wxHashTable classTable;
-
- wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn fn);
-
- wxObject *CreateObject(void);
-
- inline char *GetClassName(void) const { return className; }
- inline char *GetBaseClassName1(void) const { return baseClassName1; }
- inline char *GetBaseClassName2(void) const { return baseClassName2; }
- inline int GetSize(void) const { return objectSize; }
- bool IsKindOf(wxClassInfo *info);
-
- static wxClassInfo *FindClass(char *c);
- // Initializes parent pointers for fast searching.
- static void InitializeClasses(void);
+public:
+ wxClassInfo( const wxChar *className,
+ const wxChar *baseName1,
+ const wxChar *baseName2,
+ int size,
+ wxObjectConstructorFn ctor )
+ : m_className(className)
+ , m_baseClassName1(baseName1)
+ , m_baseClassName2(baseName2)
+ , m_objectSize(size)
+ , m_objectConstructor(ctor)
+ , m_baseInfo1(0)
+ , m_baseInfo2(0)
+ , m_next(sm_first)
+ { sm_first = this; }
+
+ wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
+
+ const wxChar *GetClassName() const { return m_className; }
+ const wxChar *GetBaseClassName1() const { return m_baseClassName1; }
+ const wxChar *GetBaseClassName2() const { return m_baseClassName2; }
+ const wxClassInfo *GetBaseClass1() const { return m_baseInfo1; }
+ const wxClassInfo *GetBaseClass2() const { return m_baseInfo2; }
+ int GetSize() const { return m_objectSize; }
+
+ wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; }
+ static const wxClassInfo *GetFirst() { return sm_first; }
+ const wxClassInfo *GetNext() const { return m_next; }
+ static wxClassInfo *FindClass(const wxChar *className);
+
+ // Climb upwards through inheritance hierarchy.
+ // Dual inheritance is catered for.
+
+ bool IsKindOf(const wxClassInfo *info) const
+ {
+ return info != 0 &&
+ ( info == this ||
+ ( m_baseInfo1 && m_baseInfo1->IsKindOf(info) ) ||
+ ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
+ }
+
+ // Initializes parent pointers and hash table for fast searching.
+
+ static void InitializeClasses();
+
+ // Cleans up hash table used for fast searching.
+
+ static void CleanUpClasses();
+
+public:
+ const wxChar *m_className;
+ const wxChar *m_baseClassName1;
+ const wxChar *m_baseClassName2;
+ int m_objectSize;
+ wxObjectConstructorFn m_objectConstructor;
+
+ // Pointers to base wxClassInfos: set in InitializeClasses
+
+ const wxClassInfo *m_baseInfo1;
+ const wxClassInfo *m_baseInfo2;
+
+ // class info object live in a linked list:
+ // pointers to its head and the next element in it
+
+ static wxClassInfo *sm_first;
+ wxClassInfo *m_next;
+
+ // FIXME: this should be private (currently used directly by way too
+ // many clients)
+ static wxHashTable *sm_classTable;
+
+private:
+ // InitializeClasses() helper
+ static wxClassInfo *GetBaseByName(const wxChar *name);
+
+ DECLARE_NO_COPY_CLASS(wxClassInfo)
};
-wxObject* WXDLLEXPORT wxCreateDynamicObject(char *name);
+WXDLLEXPORT wxObject *wxCreateDynamicObject(const wxChar *name);
-#ifdef USE_SERIAL
-wxObject* WXDLLEXPORT wxCreateStoredObject( wxInputStream& stream );
-#endif
+// ----------------------------------------------------------------------------
+// Dynamic class macros
+// ----------------------------------------------------------------------------
-#define DECLARE_DYNAMIC_CLASS(name) \
- public:\
- static wxClassInfo class##name;\
- wxClassInfo *GetClassInfo() \
- { return &name::class##name; }
+#define DECLARE_DYNAMIC_CLASS(name) \
+ public: \
+ static wxClassInfo sm_class##name; \
+ virtual wxClassInfo *GetClassInfo() const \
+ { return &name::sm_class##name; }
#define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
#define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
-//////
-////// for concrete classes
-//////
+// -----------------------------------
+// for concrete classes
+// -----------------------------------
+
+ // Single inheritance with one base class
+
+#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \
+ wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name() \
+ { return new name; } \
+ wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename), \
+ 0, (int) sizeof(name), \
+ (wxObjectConstructorFn) wxConstructorFor##name);
+
+ // Multiple inheritance with two base classes
-// Single inheritance with one base class
-#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \
-wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \
- { return new name; }\
- wxClassInfo name::class##name((char *) #name, (char *) #basename, (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name);
+#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \
+ wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name() \
+ { return new name; } \
+ wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1), \
+ wxT(#basename2), (int) sizeof(name), \
+ (wxObjectConstructorFn) wxConstructorFor##name);
-// Multiple inheritance with two base classes
-#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \
-wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \
- { return new name; }\
- wxClassInfo name::class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name);
+// -----------------------------------
+// for abstract classes
+// -----------------------------------
-//////
-////// for abstract classes
-//////
+ // Single inheritance with one base class
-// Single inheritance with one base class
-#define IMPLEMENT_ABSTRACT_CLASS(name, basename) \
- wxClassInfo name::class##name((char *) #name, (char *) #basename, \
- (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) NULL);
+#define IMPLEMENT_ABSTRACT_CLASS(name, basename) \
+ wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename), \
+ 0, (int) sizeof(name), (wxObjectConstructorFn) 0);
-// Multiple inheritance with two base classes
-#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \
- wxClassInfo name::class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) NULL);
+ // Multiple inheritance with two base classes
+
+#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \
+ wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1), \
+ wxT(#basename2), (int) sizeof(name), \
+ (wxObjectConstructorFn) 0);
#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
-#define CLASSINFO(name) (&name::class##name)
-
+// -----------------------------------
+// for pluggable classes
+// -----------------------------------
+
+ // NOTE: this should probably be the very first statement
+ // in the class declaration so wxPluginSentinel is
+ // the first member initialised and the last destroyed.
+
+// _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
+
+#if wxUSE_NESTED_CLASSES
+
+#define _DECLARE_DL_SENTINEL(name, exportdecl) \
+class exportdecl name##PluginSentinel { \
+private: \
+ static const wxString sm_className; \
+public: \
+ name##PluginSentinel(); \
+ ~name##PluginSentinel(); \
+}; \
+name##PluginSentinel m_pluginsentinel;
+
+#define _IMPLEMENT_DL_SENTINEL(name) \
+ const wxString name::name##PluginSentinel::sm_className(#name); \
+ name::name##PluginSentinel::name##PluginSentinel() { \
+ wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \
+ if( e != 0 ) { e->RefObj(); } \
+ } \
+ name::name##PluginSentinel::~name##PluginSentinel() { \
+ wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \
+ if( e != 0 ) { e->UnrefObj(); } \
+ }
#else
-// No dynamic class system: so stub out the macros
+#define _DECLARE_DL_SENTINEL(name)
+#define _IMPLEMENT_DL_SENTINEL(name)
+
+#endif // wxUSE_NESTED_CLASSES
+
+#define DECLARE_PLUGGABLE_CLASS(name) \
+ DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
+#define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name) \
+ DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLEXPORT)
+
+#define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
+ DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
+#define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo) \
+ DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, usergoo)
+
+#define IMPLEMENT_PLUGGABLE_CLASS(name, basename) \
+ IMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
+#define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) \
+ IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
+#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
+ IMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
+#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \
+ IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
+
+#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
+ IMPLEMENT_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2) \
+ IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
+#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
+ IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \
+ IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
+
+
+#define CLASSINFO(name) (&name::sm_class##name)
+
+#else // !wxUSE_DYNAMIC_CLASSES
+
+ // No dynamic class system: so stub out the macros
+
#define DECLARE_DYNAMIC_CLASS(name)
#define DECLARE_ABSTRACT_CLASS(name)
#define DECLARE_CLASS(name)
#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
-#endif
+#define DECLARE_PLUGGABLE_CLASS(name)
+#define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name)
+#define IMPLEMENT_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
+#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
-#define IS_KIND_OF(obj, className) obj->IsKindOf(&className::class##className)
+#define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo)
+#define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)
+#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)
+#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename)
+#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
-// Unfortunately Borland seems to need this include.
-#ifdef __BORLANDC__
-#if USE_IOSTREAMH
-#include <iostream.h>
-#else
-#include <iostream>
+#endif // wxUSE_DYNAMIC_CLASSES
+
+
+#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
+
+// Just seems a bit nicer-looking (pretend it's not a macro)
+#define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className)
+
+// to be replaced by dynamic_cast<> in the future
+#define wxDynamicCast(obj, className) \
+ (className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className)
+
+// The 'this' pointer is always true, so use this version
+// to cast the this pointer and avoid compiler warnings.
+#define wxDynamicCastThis(className) \
+ (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0)
+
+#define wxConstCast(obj, className) ((className *)(obj))
+
+
+#ifdef __WXDEBUG__
+inline void wxCheckCast(void *ptr)
+{
+ wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
+}
+#define wxStaticCast(obj, className) \
+ (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
+
+#else // !__WXDEBUG__
+#define wxStaticCast(obj, className) ((className *)(obj))
+
+#endif // __WXDEBUG__
+
+
+// for some reason Borland seems to need this include.
+#if wxUSE_STD_IOSTREAM \
+ && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) \
+ && defined(__BORLANDC__)
+ #if wxUSE_IOSTREAMH
+ #include <iostream.h>
+ #else
+ #include <iostream>
+ #endif
+#endif // wxUSE_IOSTREAMH
+
+// ----------------------------------------------------------------------------
+// set up memory debugging macros
+// ----------------------------------------------------------------------------
+
+/*
+ Which new/delete operator variants do we want?
+
+ _WX_WANT_NEW_SIZET_WXCHAR_INT = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
+ _WX_WANT_DELETE_VOID = void operator delete (void * buf)
+ _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET = void operator delete (void *buf, const char *_fname, size_t _line)
+ _WX_WANT_DELETE_VOID_WXCHAR_INT = void operator delete(void *buf, wxChar*, int)
+ _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
+ _WX_WANT_ARRAY_DELETE_VOID = void operator delete[] (void *buf)
+ _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT = void operator delete[] (void* buf, wxChar*, int )
+*/
+
+#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
+
+// All compilers get this one
+#define _WX_WANT_NEW_SIZET_WXCHAR_INT
+
+// Everyone except Visage gets the next one
+#ifndef __VISAGECPP__
+ #define _WX_WANT_DELETE_VOID
#endif
+
+// Only visage gets this one under the correct circumstances
+#if defined(__VISAGECPP__) && __DEBUG_ALLOC__
+ #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
#endif
-class WXDLLEXPORT wxObjectRefData;
+// Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
+#if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
+ #define _WX_WANT_DELETE_VOID_WXCHAR_INT
+#endif
+
+// Now see who (if anyone) gets the array memory operators
+#if wxUSE_ARRAY_MEMORY_OPERATORS
+
+ // Everyone except Visual C++ (cause problems for VC++ - crashes)
+ #if !defined(__VISUALC__)
+ #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
+ #endif
+
+ // Everyone except Visual C++ (cause problems for VC++ - crashes)
+ #if !defined(__VISUALC__)
+ #define _WX_WANT_ARRAY_DELETE_VOID
+ #endif
+
+ // Only CodeWarrior 6 or higher
+ #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
+ #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
+ #endif
+
+#endif // wxUSE_ARRAY_MEMORY_OPERATORS
+
+#endif // WXDEBUG && wxUSE_MEMORY_TRACING
+
+
+// ----------------------------------------------------------------------------
+// wxObject: the root class of wxWindows object hierarchy
+// ----------------------------------------------------------------------------
class WXDLLEXPORT wxObject
{
- public:
+ DECLARE_ABSTRACT_CLASS(wxObject)
- // This is equivalent to using the macro DECLARE_ABSTRACT_CLASS
- static wxClassInfo classwxObject;
+private:
+ void InitFrom(const wxObject& other);
+
+public:
+ wxObject() { m_refData = NULL; }
+ virtual ~wxObject() { UnRef(); }
+
+ wxObject(const wxObject& other)
+ {
+ InitFrom(other);
+ }
+
+ wxObject& operator=(const wxObject& other)
+ {
+ if ( this != &other )
+ {
+ UnRef();
+ InitFrom(other);
+ }
+ return *this;
+ }
+
+ bool IsKindOf(wxClassInfo *info) const;
+
+
+ // Turn on the correct set of new and delete operators
+
+#ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
+ void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
+#endif
- wxObject(void);
- virtual ~wxObject(void);
+#ifdef _WX_WANT_DELETE_VOID
+ void operator delete ( void * buf );
+#endif
- virtual wxClassInfo *GetClassInfo(void) { return &classwxObject; }
+#ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
+ void operator delete ( void *buf, const char *_fname, size_t _line );
+#endif
- bool IsKindOf(wxClassInfo *info);
+#ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
+ void operator delete ( void *buf, const wxChar*, int );
+#endif
-#if WXDEBUG && USE_MEMORY_TRACING
- void * operator new (size_t size, char * fileName = NULL, int lineNum = 0);
- void operator delete (void * buf);
-
- // Cause problems for VC++
-#ifndef _MSC_VER
- void * operator new[] (size_t size, char * fileName = NULL, int lineNum = 0);
- void operator delete[] (void * buf);
+#ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
+ void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
#endif
+#ifdef _WX_WANT_ARRAY_DELETE_VOID
+ void operator delete[] ( void *buf );
#endif
-#if WXDEBUG || USE_DEBUG_CONTEXT
- virtual void Dump(ostream& str);
+#ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
+ void operator delete[] (void* buf, const wxChar*, int );
#endif
-#ifdef USE_SERIAL
- virtual void StoreObject( wxObjectOutputStream &stream );
- virtual void LoadObject( wxObjectInputStream &stream );
+
+#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
+ virtual void Dump(wxSTD ostream& str);
#endif
- // make a 'clone' of the object
- void Ref(const wxObject& clone);
+ // ref counted data handling methods
+
+ // get/set
+ wxObjectRefData *GetRefData() const { return m_refData; }
+ void SetRefData(wxObjectRefData *data) { m_refData = data; }
- // destroy a reference
- void UnRef(void);
+ // make a 'clone' of the object
+ void Ref(const wxObject& clone);
- inline wxObjectRefData *GetRefData(void) const { return m_refData; }
- inline void SetRefData(wxObjectRefData *data) { m_refData = data; }
+ // destroy a reference
+ void UnRef();
protected:
- wxObjectRefData *m_refData;
-#ifdef USE_SERIAL
- wxObject_Serialize *m_serialObj;
-#endif
-};
+ // ensure that our data is not shared with anybody else: if we have no
+ // data, it is created using CreateRefData() below, if we have shared data
+ // it is copied using CloneRefData(), otherwise nothing is done
+ void AllocExclusive();
-/*
- * wxObjectData
- */
+ // both methods must be implemented if Unshare() is used, not pure virtual
+ // only because of the backwards compatibility reasons
+
+ // create a new m_refData
+ virtual wxObjectRefData *CreateRefData() const;
+
+ // create a new m_refData initialized with the given one
+ virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
-class WXDLLEXPORT wxObjectRefData {
+ wxObjectRefData *m_refData;
+};
+
+// ----------------------------------------------------------------------------
+// wxObjectRefData: ref counted data meant to be stored in wxObject
+// ----------------------------------------------------------------------------
+class WXDLLEXPORT wxObjectRefData
+{
friend class wxObject;
public:
- wxObjectRefData(void);
- virtual ~wxObjectRefData(void);
+ wxObjectRefData() : m_count(1) { }
+ virtual ~wxObjectRefData() { }
+
+ int GetRefCount() const { return m_count; }
- inline int GetRefCount(void) const { return m_count; }
private:
int m_count;
};
-#if WXDEBUG && USE_GLOBAL_MEMORY_OPERATORS
-#ifndef WXDEBUG_NEW
-#define WXDEBUG_NEW new(__FILE__,__LINE__)
-#endif
-#define new WXDEBUG_NEW
+
+inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
+{
+ return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
+}
+
+// ----------------------------------------------------------------------------
+// more debugging macros
+// ----------------------------------------------------------------------------
+
+#ifdef __WXDEBUG__
+ #ifndef WXDEBUG_NEW
+ #define WXDEBUG_NEW new(__TFILE__,__LINE__)
+ #endif
+#else // !__WXDEBUG__
+ #define WXDEBUG_NEW new
#endif
+// Redefine new to be the debugging version. This doesn't work with all
+// compilers, in which case you need to use WXDEBUG_NEW explicitly if you wish
+// to use the debugging version.
+
+#if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
+ #define new new(__TFILE__,__LINE__)
#endif
- // _WX_OBJECTH__
+#endif // _WX_OBJECTH__
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