X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1ccbb61aba5a0bbd93ba036ba8e1194e349064f6..929eed47994d715f3ffccbdf47768a13171da968:/src/common/object.cpp?ds=sidebyside diff --git a/src/common/object.cpp b/src/common/object.cpp index 4ac78acc23..41fce11f16 100644 --- a/src/common/object.cpp +++ b/src/common/object.cpp @@ -6,7 +6,7 @@ // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ @@ -40,19 +40,12 @@ #endif #if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT - // for wxObject::Dump -#if wxUSE_IOSTREAMH -# include -#else -# include -# ifdef _MSC_VER - using namespace std; -# endif -#endif + // for wxObject::Dump + #include "wx/ioswrap.h" #endif #if !USE_SHARED_LIBRARY -wxClassInfo wxObject::sm_classwxObject((char *) "wxObject", (char *) NULL, (char *) NULL, (int ) sizeof(wxObject), (wxObjectConstructorFn) NULL); +wxClassInfo wxObject::sm_classwxObject((wxChar *) wxT("wxObject"), (wxChar *) NULL, (wxChar *) NULL, (int ) sizeof(wxObject), (wxObjectConstructorFn) NULL); wxClassInfo* wxClassInfo::sm_first = (wxClassInfo *) NULL; wxHashTable* wxClassInfo::sm_classTable = (wxHashTable*) NULL; #endif @@ -61,20 +54,20 @@ wxHashTable* wxClassInfo::sm_classTable = (wxHashTable*) NULL; * wxWindows root object. */ -wxObject::wxObject(void) +wxObject::wxObject() { - m_refData = (wxObjectRefData *) NULL; + m_refData = (wxObjectRefData *) NULL; #if wxUSE_SERIAL - m_serialObj = (wxObject_Serialize *)NULL; + m_serialObj = (wxObject_Serialize *)NULL; #endif } -wxObject::~wxObject(void) +wxObject::~wxObject() { - UnRef(); + UnRef(); #if wxUSE_SERIAL - if (m_serialObj) - delete m_serialObj; + if (m_serialObj) + delete m_serialObj; #endif } @@ -84,23 +77,39 @@ wxObject::~wxObject(void) * Go from this class to superclass, taking into account * two possible base classes. */ - + bool wxObject::IsKindOf(wxClassInfo *info) const { - wxClassInfo *thisInfo = GetClassInfo(); - if (thisInfo) - return thisInfo->IsKindOf(info); - else - return FALSE; + wxClassInfo *thisInfo = GetClassInfo(); + if (thisInfo) + return thisInfo->IsKindOf(info); + else + return FALSE; } -#if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT +wxObject *wxObject::Clone() const +{ + wxObject *object = GetClassInfo()->CreateObject(); + CopyObject(*object); + return object; +} + +#ifdef __WXDEBUG__ +void wxObject::CopyObject(wxObject& object_dest) const +#else // !Debug +void wxObject::CopyObject(wxObject& WXUNUSED(object_dest)) const +#endif // Debug/!Debug +{ + wxASSERT(object_dest.GetClassInfo()->IsKindOf(GetClassInfo())); +} + +#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) void wxObject::Dump(ostream& str) { - if (GetClassInfo() && GetClassInfo()->GetClassName()) - str << GetClassInfo()->GetClassName(); - else - str << "unknown object class"; + if (GetClassInfo() && GetClassInfo()->GetClassName()) + str << GetClassInfo()->GetClassName(); + else + str << "unknown object class"; } #endif @@ -110,34 +119,34 @@ void wxObject::Dump(ostream& str) #undef new #endif -void * wxObject::operator new (size_t size, char * fileName, int lineNum) +void *wxObject::operator new (size_t size, wxChar * fileName, int lineNum) { - return wxDebugAlloc(size, fileName, lineNum, TRUE); + return wxDebugAlloc(size, fileName, lineNum, TRUE); } void wxObject::operator delete (void * buf) { - wxDebugFree(buf); + wxDebugFree(buf); } // VC++ 6.0 -#if _MSC_VER >= 1200 +#if defined(__VISUALC__) && (__VISUALC__ >= 1200) void wxObject::operator delete(void* pData, char* /* fileName */, int /* lineNum */) { - ::operator delete(pData); + ::operator delete(pData); } #endif // Cause problems for VC++ - crashes -#if !defined(_MSC_VER) && wxUSE_ARRAY_MEMORY_OPERATORS -void * wxObject::operator new[] (size_t size, char * fileName, int lineNum) +#if (!defined(__VISUALC__) && wxUSE_ARRAY_MEMORY_OPERATORS ) || defined(__MWERKS__) +void * wxObject::operator new[] (size_t size, wxChar * fileName, int lineNum) { - return wxDebugAlloc(size, fileName, lineNum, TRUE, TRUE); + return wxDebugAlloc(size, fileName, lineNum, TRUE, TRUE); } void wxObject::operator delete[] (void * buf) { - wxDebugFree(buf, TRUE); + wxDebugFree(buf, TRUE); } #endif @@ -147,105 +156,124 @@ void wxObject::operator delete[] (void * buf) * Class info: provides run-time class type information. */ -wxClassInfo::wxClassInfo(char *cName, char *baseName1, char *baseName2, int sz, wxObjectConstructorFn constr) +wxClassInfo::wxClassInfo(wxChar *cName, wxChar *baseName1, wxChar *baseName2, int sz, wxObjectConstructorFn constr) { - m_className = cName; - m_baseClassName1 = baseName1; - m_baseClassName2 = baseName2; - - m_objectSize = sz; - m_objectConstructor = constr; - - m_next = sm_first; - sm_first = this; - - m_baseInfo1 = (wxClassInfo *) NULL; - m_baseInfo2 = (wxClassInfo *) NULL; + m_className = cName; + m_baseClassName1 = baseName1; + m_baseClassName2 = baseName2; + + m_objectSize = sz; + m_objectConstructor = constr; + + m_next = sm_first; + sm_first = this; + + m_baseInfo1 = (wxClassInfo *) NULL; + m_baseInfo2 = (wxClassInfo *) NULL; } -wxObject *wxClassInfo::CreateObject(void) +wxObject *wxClassInfo::CreateObject() { - if (m_objectConstructor) - return (wxObject *)(*m_objectConstructor)(); - else - return (wxObject *) NULL; + if (m_objectConstructor) + return (wxObject *)(*m_objectConstructor)(); + else + return (wxObject *) NULL; } -wxClassInfo *wxClassInfo::FindClass(char *c) +wxClassInfo *wxClassInfo::FindClass(wxChar *c) { - wxClassInfo *p = sm_first; - while (p) - { - if (p && p->GetClassName() && strcmp(p->GetClassName(), c) == 0) - return p; - p = p->m_next; - } - return (wxClassInfo *) NULL; + wxClassInfo *p = sm_first; + while (p) + { + if (p && p->GetClassName() && wxStrcmp(p->GetClassName(), c) == 0) + return p; + p = p->m_next; + } + return (wxClassInfo *) NULL; } // Climb upwards through inheritance hierarchy. // Dual inheritance is catered for. bool wxClassInfo::IsKindOf(wxClassInfo *info) const { - if (info == NULL) - return FALSE; - - // For some reason, when making/using a DLL, static data has to be included - // in both the DLL and the application. This can lead to duplicate - // wxClassInfo objects, so we have to test the name instead of the pointers. - // PROBABLY NO LONGER TRUE now I've done DLL creation right. -/* + if (info == NULL) + return FALSE; + + // For some reason, when making/using a DLL, static data has to be included + // in both the DLL and the application. This can lead to duplicate + // wxClassInfo objects, so we have to test the name instead of the pointers. + // PROBABLY NO LONGER TRUE now I've done DLL creation right. + /* #if WXMAKINGDLL - if (GetClassName() && info->GetClassName() && (strcmp(GetClassName(), info->GetClassName()) == 0)) - return TRUE; +if (GetClassName() && info->GetClassName() && (wxStrcmp(GetClassName(), info->GetClassName()) == 0)) +return TRUE; #else -*/ - if (this == info) - return TRUE; + */ + if (this == info) + return TRUE; - if (m_baseInfo1) - if (m_baseInfo1->IsKindOf(info)) - return TRUE; + if (m_baseInfo1) + if (m_baseInfo1->IsKindOf(info)) + return TRUE; - if (m_baseInfo2) - return m_baseInfo2->IsKindOf(info); + if (m_baseInfo2) + return m_baseInfo2->IsKindOf(info); - return FALSE; + return FALSE; } // Set pointers to base class(es) to speed up IsKindOf -void wxClassInfo::InitializeClasses(void) +void wxClassInfo::InitializeClasses() { - wxClassInfo::sm_classTable = new wxHashTable(wxKEY_STRING); - - // Index all class infos by their class name - wxClassInfo *info = sm_first; - while (info) - { - if (info->m_className) - sm_classTable->Put(info->m_className, (wxObject *)info); - info = info->m_next; - } - - // Set base pointers for each wxClassInfo - info = sm_first; - while (info) - { - if (info->GetBaseClassName1()) - info->m_baseInfo1 = (wxClassInfo *)sm_classTable->Get(info->GetBaseClassName1()); - if (info->GetBaseClassName2()) - info->m_baseInfo2 = (wxClassInfo *)sm_classTable->Get(info->GetBaseClassName2()); - info = info->m_next; - } + // using IMPLEMENT_DYNAMIC_CLASS() macro twice (which may happen if you + // link any object module twice mistakenly) will break this function + // because it will enter an infinite loop and eventually die with "out of + // memory" - as this is quite hard to detect if you're unaware of this, + // try to do some checks here +#ifdef __WXDEBUG__ + // more classes than we'll ever have + static const size_t nMaxClasses = 10000; + size_t nClass = 0; +#endif // Debug + + wxClassInfo::sm_classTable = new wxHashTable(wxKEY_STRING); + + // Index all class infos by their class name + wxClassInfo *info = sm_first; + while (info) + { + if (info->m_className) + { + wxASSERT_MSG( ++nClass < nMaxClasses, + _T("an infinite loop detected - have you used " + "IMPLEMENT_DYNAMIC_CLASS() twice (may be by " + "linking some object module(s) twice)?") ); + + sm_classTable->Put(info->m_className, (wxObject *)info); + } + + info = info->m_next; + } + + // Set base pointers for each wxClassInfo + info = sm_first; + while (info) + { + if (info->GetBaseClassName1()) + info->m_baseInfo1 = (wxClassInfo *)sm_classTable->Get(info->GetBaseClassName1()); + if (info->GetBaseClassName2()) + info->m_baseInfo2 = (wxClassInfo *)sm_classTable->Get(info->GetBaseClassName2()); + info = info->m_next; + } } -void wxClassInfo::CleanUpClasses(void) +void wxClassInfo::CleanUpClasses() { delete wxClassInfo::sm_classTable; wxClassInfo::sm_classTable = NULL; } -wxObject *wxCreateDynamicObject(const char *name) +wxObject *wxCreateDynamicObject(const wxChar *name) { if (wxClassInfo::sm_classTable) { @@ -260,13 +288,12 @@ wxObject *wxCreateDynamicObject(const char *name) wxClassInfo *info = wxClassInfo::sm_first; while (info) { - if (info->m_className && strcmp(info->m_className, name) == 0) + if (info->m_className && wxStrcmp(info->m_className, name) == 0) return info->CreateObject(); info = info->m_next; } return (wxObject*) NULL; } - return (wxObject*) NULL; } #if wxUSE_SERIAL @@ -277,57 +304,57 @@ wxObject *wxCreateDynamicObject(const char *name) wxObject* wxCreateStoredObject( wxInputStream &stream ) { - wxObjectInputStream obj_s(stream); - return obj_s.LoadObject(); + wxObjectInputStream obj_s(stream); + return obj_s.LoadObject(); }; void wxObject::StoreObject( wxObjectOutputStream& stream ) { - wxString obj_name = wxString(GetClassInfo()->GetClassName()) + "_Serialize"; - wxLibrary *lib = wxTheLibraries.LoadLibrary("wxserial"); - - if (!lib) { - wxLogError(_("Can't load wxSerial dynamic library.")); - return; - } - if (!m_serialObj) { - m_serialObj = (WXSERIAL(wxObject) *)lib->CreateObject( obj_name ); + wxString obj_name = wxString(GetClassInfo()->GetClassName()) + "_Serialize"; + wxLibrary *lib = wxTheLibraries.LoadLibrary("wxserial"); + if (!lib) { + wxLogError(_("Can't load wxSerial dynamic library.")); + return; + } if (!m_serialObj) { - wxLogError(_("Can't find the serialization object '%s' " - "for the object '%s'."), - obj_name.c_str(), - GetClassInfo()->GetClassName()); - return; + m_serialObj = (WXSERIAL(wxObject) *)lib->CreateObject( obj_name ); + + if (!m_serialObj) { + wxLogError(_("Can't find the serialization object '%s' " + "for the object '%s'."), + obj_name.c_str(), + GetClassInfo()->GetClassName()); + return; + } + m_serialObj->SetObject(this); } - m_serialObj->SetObject(this); - } - m_serialObj->StoreObject(stream); + m_serialObj->StoreObject(stream); } void wxObject::LoadObject( wxObjectInputStream& stream ) { - wxString obj_name = wxString(GetClassInfo()->GetClassName()) + "_Serialize"; - wxLibrary *lib = wxTheLibraries.LoadLibrary("wxserial"); - - if (!m_serialObj) { - m_serialObj = (WXSERIAL(wxObject) *)lib->CreateObject( obj_name ); + wxString obj_name = wxString(GetClassInfo()->GetClassName()) + "_Serialize"; + wxLibrary *lib = wxTheLibraries.LoadLibrary("wxserial"); if (!m_serialObj) { - wxLogError(_("Can't find the serialization object '%s' " - "for the object '%s'."), - obj_name.c_str(), - GetClassInfo()->GetClassName()); - return; + m_serialObj = (WXSERIAL(wxObject) *)lib->CreateObject( obj_name ); + + if (!m_serialObj) { + wxLogError(_("Can't find the serialization object '%s' " + "for the object '%s'."), + obj_name.c_str(), + GetClassInfo()->GetClassName()); + return; + } + m_serialObj->SetObject(this); } - m_serialObj->SetObject(this); - } - m_serialObj->LoadObject(stream); + m_serialObj->LoadObject(stream); } -#endif +#endif // wxUSE_SERIAL /* * wxObject: cloning of objects @@ -344,15 +371,17 @@ void wxObject::Ref(const wxObject& clone) } } -void wxObject::UnRef(void) +void wxObject::UnRef() { - if (m_refData) { - assert(m_refData->m_count > 0); - --(m_refData->m_count); - if (m_refData->m_count == 0) + if ( m_refData ) + { + wxASSERT_MSG( m_refData->m_count > 0, _T("invalid ref data count") ); + + if ( !--m_refData->m_count ) delete m_refData; + + m_refData = (wxObjectRefData *) NULL; } - m_refData = (wxObjectRefData *) NULL; } /* @@ -363,7 +392,7 @@ wxObjectRefData::wxObjectRefData(void) : m_count(1) { } -wxObjectRefData::~wxObjectRefData(void) +wxObjectRefData::~wxObjectRefData() { }