// Modified by: Ron Lee
// Created: 04/01/98
// RCS-ID: $Id$
-// Copyright: (c) 1998 Julian Smart and Markus Holzem
+// Copyright: (c) 1998 Julian Smart
// (c) 2001 Ron Lee <ron@debian.org>
-// Licence: wxWindows license
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "object.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#ifndef WX_PRECOMP
-#include "wx/hash.h"
+ #include "wx/object.h"
+ #include "wx/hash.h"
+ #include "wx/memory.h"
#endif
#include <string.h>
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
-#include "wx/memory.h"
-#endif
-
#if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT
- // for wxObject::Dump
- #include "wx/ioswrap.h"
-
#if defined(__VISAGECPP__)
#define DEBUG_PRINTF(NAME) { static int raz=0; \
printf( #NAME " %i\n",raz); fflush(stdout); raz++; }
#endif
#endif // __WXDEBUG__ || wxUSE_DEBUG_CONTEXT
+// we must disable optimizations for VC.NET because otherwise its too eager
+// linker discards wxClassInfo objects in release build thus breaking many,
+// many things
+#if defined __VISUALC__ && __VISUALC__ >= 1300
+ #pragma optimize("", off)
+#endif
-wxClassInfo wxObject::sm_classwxObject( wxT("wxObject"), 0, 0,
+#if wxUSE_EXTENDED_RTTI
+const wxClassInfo* wxObject::ms_classParents[] = { NULL } ;
+ wxObject* wxVariantToObjectConverterwxObject ( wxxVariant &data )
+{ return data.wxTEMPLATED_MEMBER_CALL(Get , wxObject*) ; }
+ wxObject* wxVariantOfPtrToObjectConverterwxObject ( wxxVariant &data )
+{ return &data.wxTEMPLATED_MEMBER_CALL(Get , wxObject) ; }
+ wxxVariant wxObjectToVariantConverterwxObject ( wxObject *data )
+ { return wxxVariant( dynamic_cast<wxObject*> (data) ) ; }
+ wxClassInfo wxObject::ms_classInfo(ms_classParents , wxEmptyString , wxT("wxObject"),
+ (int) sizeof(wxObject), \
+ (wxObjectConstructorFn) 0 ,
+ (wxPropertyInfo*) NULL,(wxHandlerInfo*) NULL,0 , 0 ,
+ 0 , wxVariantOfPtrToObjectConverterwxObject , wxVariantToObjectConverterwxObject , wxObjectToVariantConverterwxObject);
+ template<> void wxStringReadValue(const wxString & , wxObject * & ){assert(0) ;}
+ template<> void wxStringWriteValue(wxString & , wxObject* const & ){assert(0) ;}
+ template<> void wxStringReadValue(const wxString & , wxObject & ){assert(0) ;}
+ template<> void wxStringWriteValue(wxString & , wxObject const & ){assert(0) ;}
+ wxClassTypeInfo s_typeInfo(wxT_OBJECT_PTR , &wxObject::ms_classInfo , NULL , NULL , typeid(wxObject*).name() ) ;
+ wxClassTypeInfo s_typeInfowxObject(wxT_OBJECT , &wxObject::ms_classInfo , NULL , NULL , typeid(wxObject).name() ) ;
+#else
+wxClassInfo wxObject::ms_classInfo( wxT("wxObject"), 0, 0,
(int) sizeof(wxObject),
(wxObjectConstructorFn) 0 );
+#endif
+
+// restore optimizations
+#if defined __VISUALC__ && __VISUALC__ >= 1300
+ #pragma optimize("", on)
+#endif
wxClassInfo* wxClassInfo::sm_first = NULL;
wxHashTable* wxClassInfo::sm_classTable = NULL;
-// These are here so we can avoid 'always true/false' warnings
-// by referring to these instead of TRUE/FALSE
-const bool wxTrue = TRUE;
-const bool wxFalse = FALSE;
+// when using XTI, this method is already implemented inline inside
+// DECLARE_DYNAMIC_CLASS but otherwise we intentionally make this function
+// non-inline because this allows us to have a non-inline virtual function in
+// all wx classes and this solves linking problems for HP-UX native toolchain
+// and possibly others (we could make dtor non-inline as well but it's more
+// useful to keep it inline than this function)
+#if !wxUSE_EXTENDED_RTTI
+
+wxClassInfo *wxObject::GetClassInfo() const
+{
+ return &wxObject::ms_classInfo;
+}
+
+#endif // wxUSE_EXTENDED_RTTI
+
+// this variable exists only so that we can avoid 'always true/false' warnings
+const bool wxFalse = false;
// Is this object a kind of (a subclass of) 'info'?
// E.g. is wxWindow a kind of wxObject?
bool wxObject::IsKindOf(wxClassInfo *info) const
{
wxClassInfo *thisInfo = GetClassInfo();
- return (thisInfo) ? thisInfo->IsKindOf(info) : FALSE ;
-}
-
-#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
-void wxObject::Dump(wxSTD ostream& str)
-{
- if (GetClassInfo() && GetClassInfo()->GetClassName())
- str << GetClassInfo()->GetClassName();
- else
- str << _T("unknown object class");
+ return (thisInfo) ? thisInfo->IsKindOf(info) : false ;
}
-#endif
-
#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING && defined( new )
- #undef new
+ #undef new
#endif
-
#ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
void *wxObject::operator new ( size_t size, const wxChar *fileName, int lineNum )
{
- return wxDebugAlloc(size, (wxChar*) fileName, lineNum, TRUE);
+ return wxDebugAlloc(size, (wxChar*) fileName, lineNum, true);
}
#endif
#ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
void *wxObject::operator new[] ( size_t size, const wxChar* fileName, int lineNum )
{
- return wxDebugAlloc(size, (wxChar*) fileName, lineNum, TRUE, TRUE);
+ return wxDebugAlloc(size, (wxChar*) fileName, lineNum, true, true);
}
#endif
#ifdef _WX_WANT_ARRAY_DELETE_VOID
void wxObject::operator delete[] ( void *buf )
{
- wxDebugFree(buf, TRUE);
+ wxDebugFree(buf, true);
}
#endif
#ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
void wxObject::operator delete[] (void * buf, const wxChar* WXUNUSED(fileName), int WXUNUSED(lineNum) )
{
- wxDebugFree(buf, TRUE);
+ wxDebugFree(buf, true);
}
#endif
// wxClassInfo
// ----------------------------------------------------------------------------
+wxClassInfo::~wxClassInfo()
+{
+ // remove this object from the linked list of all class infos: if we don't
+ // do it, loading/unloading a DLL containing static wxClassInfo objects is
+ // not going to work
+ if ( this == sm_first )
+ {
+ sm_first = m_next;
+ }
+ else
+ {
+ wxClassInfo *info = sm_first;
+ while (info)
+ {
+ if ( info->m_next == this )
+ {
+ info->m_next = m_next;
+ break;
+ }
+
+ info = info->m_next;
+ }
+ }
+ Unregister();
+}
+
wxClassInfo *wxClassInfo::FindClass(const wxChar *className)
{
if ( sm_classTable )
}
}
-// a tiny InitializeClasses() helper
-/* static */
-inline wxClassInfo *wxClassInfo::GetBaseByName(const wxChar *name)
-{
- if ( !name )
- return NULL;
-
- wxClassInfo *classInfo = (wxClassInfo *)sm_classTable->Get(name);
-
- // this must be fixed, other things risk work wrongly later if you get this
- wxASSERT_MSG( classInfo,
- wxString::Format
- (
- _T("base class '%s' is unknown to wxWindows RTTI"),
- name
- ) );
+// This function wasn't written to be reentrant but there is a possiblity of
+// reentrance if something it does causes a shared lib to load and register
+// classes. On Solaris this happens when the wxHashTable is newed, so the first
+// part of the function has been modified to handle it, and a wxASSERT checks
+// against reentrance in the remainder of the function.
- return classInfo;
-}
-
-// Set pointers to base class(es) to speed up IsKindOf
-void wxClassInfo::InitializeClasses()
+void wxClassInfo::Register()
{
- // 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
+ if ( !sm_classTable )
+ {
+ wxHashTable *classTable = new wxHashTable(wxKEY_STRING);
+
+ // check for reentrance
+ if ( sm_classTable )
+ delete classTable;
+ else
+ sm_classTable = classTable;
+ }
#ifdef __WXDEBUG__
- static const size_t nMaxClasses = 10000; // more than we'll ever have
- size_t nClass = 0;
+ // reentrance guard - see note above
+ static int entry = 0;
+ wxASSERT_MSG(++entry == 1, _T("wxClassInfo::Register() reentrance"));
#endif
- wxClassInfo::sm_classTable = new wxHashTable(wxKEY_STRING);
+ // Using IMPLEMENT_DYNAMIC_CLASS() macro twice (which may happen if you
+ // link any object module twice mistakenly, or link twice against wx shared
+ // library) 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.
+ wxASSERT_MSG( sm_classTable->Get(m_className) == NULL,
+ wxString::Format
+ (
+ _T("Class \"%s\" already in RTTI table - have you used IMPLEMENT_DYNAMIC_CLASS() multiple times or linked some object file twice)?"),
+ m_className
+ )
+ );
+
+ sm_classTable->Put(m_className, (wxObject *)this);
- // Index all class infos by their class name
+#ifdef __WXDEBUG__
+ --entry;
+#endif
+}
- wxClassInfo *info;
- for(info = sm_first; info; info = info->m_next)
+void wxClassInfo::Unregister()
+{
+ if ( sm_classTable )
{
- if (info->m_className)
+ sm_classTable->Delete(m_className);
+ if ( sm_classTable->GetCount() == 0 )
{
- 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);
+ delete sm_classTable;
+ sm_classTable = NULL;
}
}
-
- // Set base pointers for each wxClassInfo
-
- for(info = sm_first; info; info = info->m_next)
- {
- info->m_baseInfo1 = GetBaseByName(info->GetBaseClassName1());
- info->m_baseInfo2 = GetBaseByName(info->GetBaseClassName2());
- }
-}
-
-void wxClassInfo::CleanUpClasses()
-{
- delete wxClassInfo::sm_classTable;
- wxClassInfo::sm_classTable = NULL;
}
-
wxObject *wxCreateDynamicObject(const wxChar *name)
{
#if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT
// ----------------------------------------------------------------------------
-// wxClassInfo
+// wxObject
// ----------------------------------------------------------------------------
void wxObject::Ref(const wxObject& clone)
{
wxASSERT_MSG( m_refData->m_count > 0, _T("invalid ref data count") );
- if ( !--m_refData->m_count )
+ if ( --m_refData->m_count == 0 )
delete m_refData;
m_refData = NULL;
}
return NULL;
}
-
-// ----------------------------------------------------------------------------
-// misc
-// ----------------------------------------------------------------------------
-
-#if defined(__DARWIN__) && defined(DYLIB_INIT)
-
-extern "C" {
- void __initialize_Cplusplus(void);
- void wxWindowsDylibInit(void);
-};
-
- // Dynamic shared library (dylib) initialization routine
- // required to initialize static C++ objects bacause of lazy dynamic linking
- // http://developer.apple.com/techpubs/macosx/Essentials/
- // SystemOverview/Frameworks/Dynamic_Shared_Libraries.html
-
-void wxWindowsDylibInit()
-{
- // The function __initialize_Cplusplus() must be called from the shared
- // library initialization routine to cause the static C++ objects in
- // the library to be initialized (reference number 2441683).
-
- __initialize_Cplusplus();
-}
-
-#endif
-
-// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff