X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b80278886518c75cb0552e21e21bc321112d2862..0555b2a0a3c509687e7fc5aeb160f5171b7e6311:/include/wx/object.h diff --git a/include/wx/object.h b/include/wx/object.h index 599bcd5fc6..cb9d8f8c98 100644 --- a/include/wx/object.h +++ b/include/wx/object.h @@ -1,11 +1,11 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: object.h +// Name: wx/object.h // Purpose: wxObject class, plus run-time type information macros // Author: Julian Smart // Modified by: Ron Lee // Created: 01/02/97 // RCS-ID: $Id$ -// Copyright: (c) 1997 Julian Smart and Markus Holzem +// Copyright: (c) 1997 Julian Smart // (c) 2001 Ron Lee // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// @@ -13,175 +13,55 @@ #ifndef _WX_OBJECTH__ #define _WX_OBJECTH__ -#ifdef __GNUG__ -#pragma interface "object.h" -#endif - // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- -#include "wx/defs.h" #include "wx/memory.h" -class WXDLLEXPORT wxObject; - -#if wxUSE_DYNAMIC_CLASSES - -// ---------------------------------------------------------------------------- -// conditional compilation -// ---------------------------------------------------------------------------- - -#ifdef GetClassName -#undef GetClassName -#endif -#ifdef GetClassInfo -#undef GetClassInfo -#endif - -class WXDLLEXPORT wxClassInfo; -class WXDLLEXPORT wxHashTable; - -#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) -#include "wx/ioswrap.h" -#endif - - -// ---------------------------------------------------------------------------- -// wxClassInfo -// ---------------------------------------------------------------------------- - -typedef wxObject *(*wxObjectConstructorFn)(void); - -class WXDLLEXPORT wxClassInfo -{ -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; - - static wxHashTable *sm_classTable; -}; - -WXDLLEXPORT wxObject *wxCreateDynamicObject(const wxChar *name); - - -// ---------------------------------------------------------------------------- -// Dynamic class macros -// ---------------------------------------------------------------------------- - -#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 -// ----------------------------------- - - // 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 - -#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); - -// ----------------------------------- -// for abstract classes -// ----------------------------------- - - // Single inheritance with one base class - -#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::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 wxDECLARE_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() + +// based on the value of wxUSE_EXTENDED_RTTI symbol, +// only one of the RTTI system will be compiled: +// - the "old" one (defined by rtti.h) or +// - the "new" one (defined by xti.h) +#include "wx/xti.h" +#include "wx/rtti.h" + +#define wxIMPLEMENT_CLASS(name, basename) \ + wxIMPLEMENT_ABSTRACT_CLASS(name, basename) + +#define wxIMPLEMENT_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) // ----------------------------------- // for pluggable classes @@ -203,7 +83,7 @@ public: \ name##PluginSentinel(); \ ~name##PluginSentinel(); \ }; \ -name##PluginSentinel m_pluginsentinel; +name##PluginSentinel m_pluginsentinel #define _IMPLEMENT_DL_SENTINEL(name) \ const wxString name::name##PluginSentinel::sm_className(#name); \ @@ -222,164 +102,312 @@ name##PluginSentinel m_pluginsentinel; #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 wxDECLARE_PLUGGABLE_CLASS(name) \ + wxDECLARE_DYNAMIC_CLASS(name); _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE) +#define wxDECLARE_ABSTRACT_PLUGGABLE_CLASS(name) \ + wxDECLARE_ABSTRACT_CLASS(name); _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE) + +#define wxDECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \ + wxDECLARE_DYNAMIC_CLASS(name); _DECLARE_DL_SENTINEL(name, usergoo) +#define wxDECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo) \ + wxDECLARE_ABSTRACT_CLASS(name); _DECLARE_DL_SENTINEL(name, usergoo) + +#define wxIMPLEMENT_PLUGGABLE_CLASS(name, basename) \ + wxIMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name) +#define wxIMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name) +#define wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \ + wxIMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name) +#define wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name) + +#define wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \ + wxIMPLEMENT_PLUGGABLE_CLASS(name, basename) +#define wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2) +#define wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \ + wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) +#define wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) \ + wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2) + +#define wxCLASSINFO(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( \ + const_cast(static_cast(\ + const_cast(static_cast(obj)))), \ + &className::ms_classInfo)) -#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) +// 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) -#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) +// FIXME-VC6: dummy argument needed because VC6 doesn't support explicitly +// choosing the template function to call +template +inline T *wxCheckCast(const void *ptr, T * = NULL) +{ + wxASSERT_MSG( wxDynamicCast(ptr, T), "wxStaticCast() used incorrectly" ); + return const_cast(static_cast(ptr)); +} -#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 wxStaticCast(obj, className) wxCheckCast((obj), (className *)NULL) +// ---------------------------------------------------------------------------- +// set up memory debugging macros +// ---------------------------------------------------------------------------- -#define CLASSINFO(name) (&name::sm_class##name) +/* + Which new/delete operator variants do we want? -#else // !wxUSE_DYNAMIC_CLASSES + _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 ) +*/ - // No dynamic class system: so stub out the macros +#if wxUSE_MEMORY_TRACING -#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 +// All compilers get this one +#define _WX_WANT_NEW_SIZET_WXCHAR_INT -#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) +// Everyone except Visage gets the next one +#ifndef __VISAGECPP__ + #define _WX_WANT_DELETE_VOID +#endif -#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) +// Only visage gets this one under the correct circumstances +#if defined(__VISAGECPP__) && __DEBUG_ALLOC__ + #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET +#endif -#endif // wxUSE_DYNAMIC_CLASSES +// Only VC++ 6 gets overloaded delete that matches new +#if (defined(__VISUALC__) && (__VISUALC__ >= 1200)) + #define _WX_WANT_DELETE_VOID_WXCHAR_INT +#endif +// Now see who (if anyone) gets the array memory operators +#if wxUSE_ARRAY_MEMORY_OPERATORS -#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className) + // Everyone except Visual C++ (cause problems for VC++ - crashes) + #if !defined(__VISUALC__) + #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT + #endif - // Just seems a bit nicer-looking (pretend it's not a macro) + // Everyone except Visual C++ (cause problems for VC++ - crashes) + #if !defined(__VISUALC__) + #define _WX_WANT_ARRAY_DELETE_VOID + #endif +#endif // wxUSE_ARRAY_MEMORY_OPERATORS -#define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className) +#endif // wxUSE_MEMORY_TRACING - // to be replaced by dynamic_cast<> in the future +// ---------------------------------------------------------------------------- +// Compatibility macro aliases DECLARE group +// ---------------------------------------------------------------------------- +// deprecated variants _not_ requiring a semicolon after them and without wx prefix. +// (note that also some wx-prefixed macro do _not_ require a semicolon because +// it's not always possible to force the compire to require it) + +#define DECLARE_CLASS_INFO_ITERATORS() wxDECLARE_CLASS_INFO_ITERATORS(); +#define DECLARE_ABSTRACT_CLASS(n) wxDECLARE_ABSTRACT_CLASS(n); +#define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(n) wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(n); +#define DECLARE_DYNAMIC_CLASS_NO_COPY(n) wxDECLARE_DYNAMIC_CLASS_NO_COPY(n); +#define DECLARE_DYNAMIC_CLASS(n) wxDECLARE_DYNAMIC_CLASS(n); +#define DECLARE_CLASS(n) wxDECLARE_CLASS(n); + +#define DECLARE_PLUGGABLE_CLASS(n) wxDECLARE_PLUGGABLE_CLASS(n); +#define DECLARE_ABSTRACT_PLUGGABLE_CLASS(n) wxDECLARE_ABSTRACT_PLUGGABLE_CLASS(n); +#define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(n,u) wxDECLARE_USER_EXPORTED_PLUGGABLE_CLASS(n,u); +#define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,u) wxDECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,u); -#define wxDynamicCast(obj, className) \ - (className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className) +// ---------------------------------------------------------------------------- +// wxRefCounter: ref counted data "manager" +// ---------------------------------------------------------------------------- - // The 'this' pointer is always true, so use this version - // to cast the this pointer and avoid compiler warnings. +class WXDLLIMPEXP_BASE wxRefCounter +{ +public: + wxRefCounter() { m_count = 1; } -#define wxDynamicCastThis(className) \ - (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0) + int GetRefCount() const { return m_count; } -#define wxConstCast(obj, className) ((className *)(obj)) + void IncRef() { m_count++; } + void DecRef(); +protected: + // this object should never be destroyed directly but only as a + // result of a DecRef() call: + virtual ~wxRefCounter() { } + +private: + // our refcount: + int m_count; + + // It doesn't make sense to copy the reference counted objects, a new ref + // counter should be created for a new object instead and compilation + // errors in the code using wxRefCounter due to the lack of copy ctor often + // indicate a problem, e.g. a forgotten copy ctor implementation somewhere. + wxDECLARE_NO_COPY_CLASS(wxRefCounter); +}; + +// ---------------------------------------------------------------------------- +// wxObjectRefData: ref counted data meant to be stored in wxObject +// ---------------------------------------------------------------------------- + +typedef wxRefCounter wxObjectRefData; -#ifdef __WXDEBUG__ -inline void wxCheckCast(void *ptr) +// ---------------------------------------------------------------------------- +// wxObjectDataPtr: helper class to avoid memleaks because of missing calls +// to wxObjectRefData::DecRef +// ---------------------------------------------------------------------------- + +template +class wxObjectDataPtr { - wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") ); -} -#define wxStaticCast(obj, className) \ - (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj))) +public: + typedef T element_type; -#else // !__WXDEBUG__ -#define wxStaticCast(obj, className) ((className *)(obj)) + wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {} -#endif // __WXDEBUG__ + // copy ctor + wxObjectDataPtr(const wxObjectDataPtr &tocopy) + : m_ptr(tocopy.m_ptr) + { + if (m_ptr) + m_ptr->IncRef(); + } + ~wxObjectDataPtr() + { + if (m_ptr) + m_ptr->DecRef(); + } - // Unfortunately Borland seems to need this include. + T *get() const { return m_ptr; } -#if wxUSE_STD_IOSTREAM \ - && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) \ - && defined(__BORLANDC__) -#if wxUSE_IOSTREAMH -#include -#else -#include -#endif -#endif + // test for pointer validity: defining conversion to unspecified_bool_type + // and not more obvious bool to avoid implicit conversions to integer types + typedef T *(wxObjectDataPtr::*unspecified_bool_type)() const; + operator unspecified_bool_type() const + { + return m_ptr ? &wxObjectDataPtr::get : NULL; + } + + T& operator*() const + { + wxASSERT(m_ptr != NULL); + return *(m_ptr); + } + + T *operator->() const + { + wxASSERT(m_ptr != NULL); + 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; + return *this; + } + +private: + T *m_ptr; +}; // ---------------------------------------------------------------------------- -// wxObject +// wxObject: the root class of wxWidgets object hierarchy // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxObjectRefData; - -class WXDLLEXPORT wxObject +class WXDLLIMPEXP_BASE wxObject { -DECLARE_ABSTRACT_CLASS(wxObject) + wxDECLARE_ABSTRACT_CLASS(wxObject); public: - wxObject() : m_refData(0) {} + wxObject() { m_refData = NULL; } virtual ~wxObject() { UnRef(); } - bool IsKindOf(wxClassInfo *info) const; + wxObject(const wxObject& other) + { + m_refData = other.m_refData; + if (m_refData) + m_refData->IncRef(); + } + + wxObject& operator=(const wxObject& other) + { + if ( this != &other ) + { + Ref(other); + } + return *this; + } -#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING - void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0); + bool IsKindOf(const wxClassInfo *info) const; -#ifndef __VISAGECPP__ - void operator delete (void * buf); -#elif __DEBUG_ALLOC__ - void operator delete (void *buf, const char *_fname, size_t _line); -#endif - // VC++ 6.0 + // Turn on the correct set of new and delete operators -#if defined(__VISUALC__) && (__VISUALC__ >= 1200) - void operator delete(void *buf, wxChar*, int); +#ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT + void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 ); #endif - // Causes problems for VC++ +#ifdef _WX_WANT_DELETE_VOID + void operator delete ( void * buf ); +#endif -#if wxUSE_ARRAY_MEMORY_OPERATORS && !defined(__VISUALC__) && !defined( __MWERKS__) - void *operator new[] (size_t size, wxChar *fileName = 0, int lineNum = 0); - void operator delete[] (void *buf); +#ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET + void operator delete ( void *buf, const char *_fname, size_t _line ); #endif -#ifdef __MWERKS__ - void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0); - void *operator new[] (size_t size) { return operator new[] ( size, 0, 0 ) ; } - void operator delete[] (void *buf); +#ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT + void operator delete ( void *buf, const wxChar*, int ); #endif -#endif // Debug & memory tracing +#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 wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) - virtual void Dump(wxSTD ostream& str); +#ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT + void operator delete[] (void* buf, const wxChar*, int ); #endif // ref counted data handling methods @@ -394,14 +422,20 @@ public: // 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 Unshare() is used, not pure virtual - // only because of the backwards compatibility reasons + // 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; @@ -412,42 +446,53 @@ protected: wxObjectRefData *m_refData; }; - -class WXDLLEXPORT wxObjectRefData -{ - friend class wxObject; - -public: - wxObjectRefData() : m_count(1) {} - virtual ~wxObjectRefData() {} - - inline int GetRefCount() const { return m_count; } -private: - int m_count; -}; - - inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo) { - return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : 0; + return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL; } -#ifdef __WXDEBUG__ -#ifndef WXDEBUG_NEW -#define WXDEBUG_NEW new(__TFILE__,__LINE__) -#endif -#else -#define WXDEBUG_NEW new -#endif +#include "wx/xti2.h" - // 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. +// ---------------------------------------------------------------------------- +// more debugging macros +// ---------------------------------------------------------------------------- -#if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS -#define new new(__TFILE__,__LINE__) -#endif +#if wxUSE_DEBUG_NEW_ALWAYS + #define WXDEBUG_NEW new(__TFILE__,__LINE__) + + #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 -#endif // _WX_OBJECTH__ +// ---------------------------------------------------------------------------- +// Compatibility macro aliases IMPLEMENT group +// ---------------------------------------------------------------------------- -// vi:sts=4:sw=4:et +// deprecated variants _not_ requiring a semicolon after them and without wx prefix. +// (note that also some wx-prefixed macro do _not_ require a semicolon because +// it's not always possible to force the compire to require it) + +#define IMPLEMENT_DYNAMIC_CLASS(n,b) wxIMPLEMENT_DYNAMIC_CLASS(n,b) +#define IMPLEMENT_DYNAMIC_CLASS2(n,b1,b2) wxIMPLEMENT_DYNAMIC_CLASS2(n,b1,b2) +#define IMPLEMENT_ABSTRACT_CLASS(n,b) wxIMPLEMENT_ABSTRACT_CLASS(n,b) +#define IMPLEMENT_ABSTRACT_CLASS2(n,b1,b2) wxIMPLEMENT_ABSTRACT_CLASS2(n,b1,b2) +#define IMPLEMENT_CLASS(n,b) wxIMPLEMENT_CLASS(n,b) +#define IMPLEMENT_CLASS2(n,b1,b2) wxIMPLEMENT_CLASS2(n,b1,b2) + +#define IMPLEMENT_PLUGGABLE_CLASS(n,b) wxIMPLEMENT_PLUGGABLE_CLASS(n,b) +#define IMPLEMENT_PLUGGABLE_CLASS2(n,b,b2) wxIMPLEMENT_PLUGGABLE_CLASS2(n,b,b2) +#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(n,b) wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(n,b) +#define IMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(n,b,b2) wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(n,b,b2) +#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(n,b) wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(n,b) +#define IMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(n,b,b2) wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(n,b,b2) +#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,b) wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,b) +#define IMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(n,b,b2) wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(n,b,b2) + +#define CLASSINFO(n) wxCLASSINFO(n) + +#endif // _WX_OBJECTH__