X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/0c32066b58849e52e4d76e30982414d9f4daae6a..033bf67c3cd465dce10b7bfb5c24f62ab83e5a13:/include/wx/object.h diff --git a/include/wx/object.h b/include/wx/object.h index 83b86a7d08..e24fc89e1c 100644 --- a/include/wx/object.h +++ b/include/wx/object.h @@ -1,244 +1,659 @@ ///////////////////////////////////////////////////////////////////////////// -// 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 +// (c) 2001 Ron Lee +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifndef _WX_OBJECTH__ #define _WX_OBJECTH__ -#ifdef __GNUG__ -#pragma interface "object.h" -#endif - -#include "wx/defs.h" +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- -class WXDLLEXPORT wxObject; +#include "wx/memory.h" -#if USE_DYNAMIC_CLASSES +class WXDLLIMPEXP_FWD_BASE wxObject; +class WXDLLIMPEXP_FWD_BASE wxString; -#ifdef __GNUWIN32__ -#ifdef GetClassName -#undef GetClassName -#endif +#ifndef wxUSE_EXTENDED_RTTI +#define wxUSE_EXTENDED_RTTI 0 #endif -class WXDLLEXPORT wxClassInfo; -class WXDLLIMPORT ostream; -class WXDLLEXPORT wxInputStream; -class WXDLLEXPORT wxObjectInputStream; -class WXDLLEXPORT wxObjectOutputStream; -class WXDLLEXPORT wxHashTable; -class WXDLLEXPORT wxObject_Serialize; +#define DECLARE_CLASS_INFO_ITERATORS() \ + class WXDLLIMPEXP_BASE const_iterator \ + { \ + typedef wxHashTable_Node Node; \ + public: \ + typedef const wxClassInfo* value_type; \ + typedef const value_type& const_reference; \ + typedef const_iterator itor; \ + typedef value_type* ptr_type; \ + \ + Node* m_node; \ + wxHashTable* m_table; \ + public: \ + typedef const_reference reference_type; \ + typedef ptr_type pointer_type; \ + \ + const_iterator(Node* node, wxHashTable* table) \ + : m_node(node), m_table(table) { } \ + const_iterator() : m_node(NULL), m_table(NULL) { } \ + value_type operator*() const; \ + itor& operator++(); \ + const itor operator++(int); \ + bool operator!=(const itor& it) const \ + { return it.m_node != m_node; } \ + bool operator==(const itor& it) const \ + { return it.m_node == m_node; } \ + }; \ + \ + static const_iterator begin_classinfo(); \ + static const_iterator end_classinfo(); + +#if wxUSE_EXTENDED_RTTI +#include "wx/xti.h" +#else -/* - * Dynamic object system declarations - */ +// ---------------------------------------------------------------------------- +// conditional compilation +// ---------------------------------------------------------------------------- -typedef wxObject * (*wxObjectConstructorFn) (void); +class WXDLLIMPEXP_FWD_BASE wxClassInfo; +class WXDLLIMPEXP_FWD_BASE wxHashTable; +class WXDLLIMPEXP_FWD_BASE wxObject; +class WXDLLIMPEXP_FWD_BASE wxPluginLibrary; +class WXDLLIMPEXP_FWD_BASE wxObjectRefData; +class WXDLLIMPEXP_FWD_BASE wxHashTable_Node; -class WXDLLEXPORT wxClassInfo -{ - public: - wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn fn); - - wxObject *CreateObject(void); - - inline char *GetClassName(void) const { return m_className; } - inline char *GetBaseClassName1(void) const { return m_baseClassName1; } - inline char *GetBaseClassName2(void) const { return m_baseClassName2; } - inline wxClassInfo* GetBaseClass1() const { return m_baseInfo1; } - inline wxClassInfo* GetBaseClass2() const { return m_baseInfo2; } - inline int GetSize(void) const { return m_objectSize; } - inline wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; } - inline wxClassInfo* GetFirst() const { return sm_first; } - inline wxClassInfo* GetNext() const { return m_next; } - bool IsKindOf(wxClassInfo *info); - - static wxClassInfo *FindClass(char *c); - - // Initializes parent pointers and hash table for fast searching. - static void InitializeClasses(void); - - // Cleans up hash table used for fast searching. - static void CleanUpClasses(void); +// ---------------------------------------------------------------------------- +// wxClassInfo +// ---------------------------------------------------------------------------- +typedef wxObject *(*wxObjectConstructorFn)(void); + +class WXDLLIMPEXP_BASE wxClassInfo +{ + friend class WXDLLIMPEXP_FWD_BASE wxObject; + friend WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& name); public: - char* m_className; - char* m_baseClassName1; - char* m_baseClassName2; - int m_objectSize; - wxObjectConstructorFn m_objectConstructor; - - // Pointers to base wxClassInfos: set in InitializeClasses - // called from wx_main.cc - wxClassInfo* m_baseInfo1; - wxClassInfo* m_baseInfo2; - - static wxClassInfo* sm_first; - wxClassInfo* m_next; - - static wxHashTable* sm_classTable; + wxClassInfo( const wxChar *className, + const wxClassInfo *baseInfo1, + const wxClassInfo *baseInfo2, + int size, + wxObjectConstructorFn ctor ) + : m_className(className) + , m_objectSize(size) + , m_objectConstructor(ctor) + , m_baseInfo1(baseInfo1) + , m_baseInfo2(baseInfo2) + , m_next(sm_first) + { + sm_first = this; + Register(); + } + + ~wxClassInfo(); + + wxObject *CreateObject() const + { return m_objectConstructor ? (*m_objectConstructor)() : 0; } + bool IsDynamic() const { return (NULL != m_objectConstructor); } + + const wxChar *GetClassName() const { return m_className; } + const wxChar *GetBaseClassName1() const + { return m_baseInfo1 ? m_baseInfo1->GetClassName() : NULL; } + const wxChar *GetBaseClassName2() const + { return m_baseInfo2 ? m_baseInfo2->GetClassName() : NULL; } + 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 wxString& 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) ) ); + } + + DECLARE_CLASS_INFO_ITERATORS() +private: + const wxChar *m_className; + int m_objectSize; + wxObjectConstructorFn m_objectConstructor; + + // Pointers to base wxClassInfos + + 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; + + static wxHashTable *sm_classTable; + +protected: + // registers the class + void Register(); + void Unregister(); + + DECLARE_NO_COPY_CLASS(wxClassInfo) }; -wxObject* WXDLLEXPORT wxCreateDynamicObject(const char *name); +WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& name); -#ifdef USE_SERIAL -wxObject* WXDLLEXPORT wxCreateStoredObject( wxInputStream& stream ); -#endif +// ---------------------------------------------------------------------------- +// Dynamic class macros +// ---------------------------------------------------------------------------- -#define DECLARE_DYNAMIC_CLASS(name) \ - public:\ - static wxClassInfo sm_class##name;\ - wxClassInfo *GetClassInfo() \ - { return &name::sm_class##name; } +#define DECLARE_ABSTRACT_CLASS(name) \ + public: \ + static wxClassInfo ms_classInfo; \ + virtual wxClassInfo *GetClassInfo() const; + +#define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(name) \ + DECLARE_NO_ASSIGN_CLASS(name) \ + DECLARE_DYNAMIC_CLASS(name) + +#define DECLARE_DYNAMIC_CLASS_NO_COPY(name) \ + DECLARE_NO_COPY_CLASS(name) \ + DECLARE_DYNAMIC_CLASS(name) + +#define DECLARE_DYNAMIC_CLASS(name) \ + DECLARE_ABSTRACT_CLASS(name) \ + static wxObject* wxCreateObject(); -#define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name) #define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name) -////// -////// for concrete classes -////// -// Single inheritance with one base class -#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \ -wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ - { return new name; }\ - wxClassInfo name::sm_class##name((char *) #name, (char *) #basename, (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name); +// common part of the macros below +#define wxIMPLEMENT_CLASS_COMMON(name, basename, baseclsinfo2, func) \ + wxClassInfo name::ms_classInfo(wxT(#name), \ + &basename::ms_classInfo, \ + baseclsinfo2, \ + (int) sizeof(name), \ + (wxObjectConstructorFn) func); \ + \ + wxClassInfo *name::GetClassInfo() const \ + { return &name::ms_classInfo; } -// Multiple inheritance with two base classes -#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \ -wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \ - { return new name; }\ - wxClassInfo name::sm_class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name); +#define wxIMPLEMENT_CLASS_COMMON1(name, basename, func) \ + wxIMPLEMENT_CLASS_COMMON(name, basename, NULL, func) -////// -////// for abstract classes -////// +#define wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, func) \ + wxIMPLEMENT_CLASS_COMMON(name, basename1, &basename2::ms_classInfo, func) -// Single inheritance with one base class -#define IMPLEMENT_ABSTRACT_CLASS(name, basename) \ - wxClassInfo name::sm_class##name((char *) #name, (char *) #basename, \ - (char *) NULL, (int) sizeof(name), (wxObjectConstructorFn) NULL); +// ----------------------------------- +// for concrete classes +// ----------------------------------- -// Multiple inheritance with two base classes -#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \ - wxClassInfo name::sm_class##name((char *) #name, (char *) #basename1, (char *) #basename2, (int) sizeof(name), (wxObjectConstructorFn) NULL); + // Single inheritance with one base class +#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \ + wxIMPLEMENT_CLASS_COMMON1(name, basename, name::wxCreateObject) \ + wxObject* name::wxCreateObject() \ + { return new name; } -#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS -#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 + // Multiple inheritance with two base classes +#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, \ + name::wxCreateObject) \ + wxObject* name::wxCreateObject() \ + { return new name; } -#define CLASSINFO(name) (&name::sm_class##name) +// ----------------------------------- +// for abstract classes +// ----------------------------------- -#else + // Single inheritance with one base class + +#define IMPLEMENT_ABSTRACT_CLASS(name, basename) \ + wxIMPLEMENT_CLASS_COMMON1(name, basename, NULL) + + // Multiple inheritance with two base classes + +#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, NULL) -// 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_DYNAMIC_CLASS(name, basename) -#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) -#define IMPLEMENT_ABSTRACT_CLASS(name, basename) -#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) #define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS #define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2 -#endif +#endif // !wxUSE_EXTENDED_RTTI + + +// ----------------------------------- +// 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 -#define IS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className) +#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::ms_classInfo) + +#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo) + +// Just seems a bit nicer-looking (pretend it's not a macro) +#define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo) + +// this cast does some more checks at compile time as it uses static_cast +// internally +// +// note that it still has different semantics from dynamic_cast<> and so can't +// be replaced by it as long as there are any compilers not supporting it +#define wxDynamicCast(obj, className) \ + ((className *) wxCheckDynamicCast( \ + wx_const_cast(wxObject *, wx_static_cast(const wxObject *, \ + wx_const_cast(className *, wx_static_cast(const className *, obj)))), \ + &className::ms_classInfo)) + +// The 'this' pointer is always true, so use this version +// to cast the this pointer and avoid compiler warnings. +#define wxDynamicCastThis(className) \ + (IsKindOf(&className::ms_classInfo) ? (className *)(this) : (className *)0) + +#ifdef __WXDEBUG__ +inline void* wxCheckCast(void *ptr) +{ + wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") ); + return ptr; +} +#define wxStaticCast(obj, className) \ + ((className *)wxCheckCast(wxDynamicCast(obj, className))) -// Unfortunately Borland seems to need this include. -#ifdef __BORLANDC__ -#if USE_IOSTREAMH -#include -#else -#include -#endif -#endif +#else // !__WXDEBUG__ +#define wxStaticCast(obj, className) \ + wx_const_cast(className *, wx_static_cast(const className *, obj)) -class WXDLLEXPORT wxObjectRefData; +#endif // __WXDEBUG__ -class WXDLLEXPORT wxObject -{ - public: +// ---------------------------------------------------------------------------- +// set up memory debugging macros +// ---------------------------------------------------------------------------- - // This is equivalent to using the macro DECLARE_ABSTRACT_CLASS - static wxClassInfo sm_classwxObject; +/* + Which new/delete operator variants do we want? - wxObject(void); - virtual ~wxObject(void); + _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 ) +*/ - virtual wxClassInfo *GetClassInfo(void) { return &sm_classwxObject; } +#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING - bool IsKindOf(wxClassInfo *info); +// All compilers get this one +#define _WX_WANT_NEW_SIZET_WXCHAR_INT -#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); +// 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 -#if WXDEBUG || USE_DEBUG_CONTEXT - virtual void Dump(ostream& str); +// Only VC++ 6 and CodeWarrior get overloaded delete that matches new +#if (defined(__VISUALC__) && (__VISUALC__ >= 1200)) || \ + (defined(__MWERKS__) && (__MWERKS__ >= 0x2400)) + #define _WX_WANT_DELETE_VOID_WXCHAR_INT #endif -#ifdef USE_SERIAL - virtual void StoreObject( wxObjectOutputStream &stream ); - virtual void LoadObject( wxObjectInputStream &stream ); -#endif +// Now see who (if anyone) gets the array memory operators +#if wxUSE_ARRAY_MEMORY_OPERATORS - // make a 'clone' of the object - void Ref(const wxObject& clone); + // Everyone except Visual C++ (cause problems for VC++ - crashes) + #if !defined(__VISUALC__) + #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT + #endif - // destroy a reference - void UnRef(void); + // Everyone except Visual C++ (cause problems for VC++ - crashes) + #if !defined(__VISUALC__) + #define _WX_WANT_ARRAY_DELETE_VOID + #endif - inline wxObjectRefData *GetRefData(void) const { return m_refData; } - inline void SetRefData(wxObjectRefData *data) { m_refData = data; } + // Only CodeWarrior 6 or higher + #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400) + #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT + #endif -protected: - wxObjectRefData* m_refData; -#ifdef USE_SERIAL - wxObject_Serialize* m_serialObj; -#endif -}; +#endif // wxUSE_ARRAY_MEMORY_OPERATORS -/* - * wxObjectData - */ +#endif // __WXDEBUG__ && wxUSE_MEMORY_TRACING -class WXDLLEXPORT wxObjectRefData { +// ---------------------------------------------------------------------------- +// wxObjectRefData: ref counted data meant to be stored in wxObject +// ---------------------------------------------------------------------------- - friend class wxObject; +class WXDLLIMPEXP_BASE wxObjectRefData +{ + friend class WXDLLIMPEXP_FWD_BASE wxObject; public: - wxObjectRefData(void); - virtual ~wxObjectRefData(void); + wxObjectRefData() : m_count(1) { } + + int GetRefCount() const { return m_count; } + + void IncRef() { m_count++; } + void DecRef(); + +protected: + // this object should never be destroyed directly but only as a + // result of a DecRef() call: + virtual ~wxObjectRefData() { } - inline int GetRefCount(void) const { return m_count; } private: + // our refcount: int m_count; }; -#if WXDEBUG && USE_GLOBAL_MEMORY_OPERATORS -#ifndef WXDEBUG_NEW -#define WXDEBUG_NEW new(__FILE__,__LINE__) +// ---------------------------------------------------------------------------- +// wxObjectDataPtr: helper class to avoid memleaks because of missing calls +// to wxObjectRefData::DecRef +// ---------------------------------------------------------------------------- + +template +class wxObjectDataPtr +{ +public: + typedef T element_type; + + wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {} + + // copy ctor + wxObjectDataPtr(const wxObjectDataPtr &tocopy) + : m_ptr(tocopy.m_ptr) + { + if (m_ptr) + m_ptr->IncRef(); + } + + ~wxObjectDataPtr() + { + if (m_ptr) + m_ptr->DecRef(); + } + + T *get() const { return m_ptr; } + T *operator->() const { return get(); } + + void reset(T *ptr) + { + if (m_ptr) + m_ptr->DecRef(); + m_ptr = ptr; + } + + wxObjectDataPtr& operator=(const wxObjectDataPtr &tocopy) + { + if (m_ptr) + m_ptr->DecRef(); + m_ptr = tocopy.m_ptr; + if (m_ptr) + m_ptr->IncRef(); + return *this; + } + + wxObjectDataPtr& operator=(T *ptr) + { + if (m_ptr) + m_ptr->DecRef(); + m_ptr = ptr; + if (m_ptr) + m_ptr->IncRef(); + return *this; + } + +private: + T *m_ptr; +}; + +// ---------------------------------------------------------------------------- +// wxObject: the root class of wxWidgets object hierarchy +// ---------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxObject +{ + DECLARE_ABSTRACT_CLASS(wxObject) + +public: + wxObject() { m_refData = NULL; } + virtual ~wxObject() { UnRef(); } + + wxObject(const wxObject& other) + { + m_refData = other.m_refData; + if (m_refData) + m_refData->m_count++; + } + + wxObject& operator=(const wxObject& other) + { + if ( this != &other ) + { + Ref(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 + +#ifdef _WX_WANT_DELETE_VOID + void operator delete ( void * buf ); +#endif + +#ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET + void operator delete ( void *buf, const char *_fname, size_t _line ); +#endif + +#ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT + void operator delete ( void *buf, const wxChar*, int ); +#endif + +#ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT + void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 ); #endif -#define new WXDEBUG_NEW + +#ifdef _WX_WANT_ARRAY_DELETE_VOID + void operator delete[] ( void *buf ); #endif +#ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT + void operator delete[] (void* buf, const wxChar*, int ); #endif - // _WX_OBJECTH__ + // ref counted data handling methods + + // get/set + wxObjectRefData *GetRefData() const { return m_refData; } + void SetRefData(wxObjectRefData *data) { m_refData = data; } + + // make a 'clone' of the object + void Ref(const wxObject& clone); + + // destroy a reference + void UnRef(); + + // Make sure this object has only one reference + void UnShare() { AllocExclusive(); } + + // check if this object references the same data as the other one + bool IsSameAs(const wxObject& o) const { return m_refData == o.m_refData; } + +protected: + // 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(); + + // both methods must be implemented if AllocExclusive() 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; + + wxObjectRefData *m_refData; +}; + +inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo) +{ + return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL; +} + +#if wxUSE_EXTENDED_RTTI +class WXDLLIMPEXP_BASE wxDynamicObject : public wxObject +{ + friend class WXDLLIMPEXP_FWD_BASE wxDynamicClassInfo ; +public: + // instantiates this object with an instance of its superclass + wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info) ; + virtual ~wxDynamicObject(); + + void SetProperty (const wxChar *propertyName, const wxxVariant &value); + wxxVariant GetProperty (const wxChar *propertyName) const ; + + // get the runtime identity of this object + wxClassInfo *GetClassInfo() const + { +#ifdef _MSC_VER + return (wxClassInfo*) m_classInfo; +#else + wxDynamicClassInfo *nonconst = wx_const_cast(wxDynamicClassInfo *, m_classInfo); + return wx_static_cast(wxClassInfo *, nonconst); +#endif + } + + wxObject* GetSuperClassInstance() const + { + return m_superClassInstance ; + } +private : + // removes an existing runtime-property + void RemoveProperty( const wxChar *propertyName ) ; + + // renames an existing runtime-property + void RenameProperty( const wxChar *oldPropertyName , const wxChar *newPropertyName ) ; + + wxObject *m_superClassInstance ; + const wxDynamicClassInfo *m_classInfo; + struct wxDynamicObjectInternal; + wxDynamicObjectInternal *m_data; +}; +#endif +// ---------------------------------------------------------------------------- +// more debugging macros +// ---------------------------------------------------------------------------- + +// 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. + +#ifdef __WXDEBUG__ + #define WXDEBUG_NEW new(__TFILE__,__LINE__) + + #if wxUSE_DEBUG_NEW_ALWAYS + #if wxUSE_GLOBAL_MEMORY_OPERATORS + #define new WXDEBUG_NEW + #elif defined(__VISUALC__) + // Including this file redefines new and allows leak reports to + // contain line numbers + #include "wx/msw/msvcrt.h" + #endif + #endif // wxUSE_DEBUG_NEW_ALWAYS +#else // !__WXDEBUG__ + #define WXDEBUG_NEW new +#endif // __WXDEBUG__/!__WXDEBUG__ + +#endif // _WX_OBJECTH__