// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#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"
+ #include "wx/crt.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
#if defined(__VISAGECPP__)
#define DEBUG_PRINTF(NAME) { static int raz=0; \
#endif // wxUSE_EXTENDED_RTTI
-// These are here so we can avoid 'always true/false' warnings
-// by referring to these instead of true/false
-const bool wxTrue = true;
+// 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?
// Go from this class to superclass, taking into account
// two possible base classes.
-bool wxObject::IsKindOf(wxClassInfo *info) const
+bool wxObject::IsKindOf(const wxClassInfo *info) const
{
- wxClassInfo *thisInfo = GetClassInfo();
+ const wxClassInfo *thisInfo = GetClassInfo();
return (thisInfo) ? thisInfo->IsKindOf(info) : false ;
}
Unregister();
}
-wxClassInfo *wxClassInfo::FindClass(const wxChar *className)
+wxClassInfo *wxClassInfo::FindClass(const wxString& className)
{
if ( sm_classTable )
{
{
for ( wxClassInfo *info = sm_first; info ; info = info->m_next )
{
- if ( wxStrcmp(info->GetClassName(), className) == 0 )
+ if ( className == info->GetClassName() )
return info;
}
}
}
-void wxClassInfo::CleanUp()
-{
- if ( sm_classTable )
- {
- delete sm_classTable;
- sm_classTable = NULL;
- }
-}
+// 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.
void wxClassInfo::Register()
{
if ( !sm_classTable )
{
- sm_classTable = new wxHashTable(wxKEY_STRING);
+ wxHashTable *classTable = new wxHashTable(wxKEY_STRING);
+
+ // check for reentrance
+ if ( sm_classTable )
+ delete classTable;
+ else
+ sm_classTable = classTable;
}
+#ifdef __WXDEBUG__
+ // reentrance guard - see note above
+ static int entry = 0;
+ wxASSERT_MSG(++entry == 1, _T("wxClassInfo::Register() reentrance"));
+#endif
+
// 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
wxASSERT_MSG( sm_classTable->Get(m_className) == NULL,
wxString::Format
(
- _T("Class \"%s\" already in RTTI table - have you used IMPLEMENT_DYNAMIC_CLASS() twice (may be by linking some objecti module(s) twice)?"),
+ _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);
+
+#ifdef __WXDEBUG__
+ --entry;
+#endif
}
void wxClassInfo::Unregister()
}
}
-wxObject *wxCreateDynamicObject(const wxChar *name)
+wxObject *wxCreateDynamicObject(const wxString& name)
{
#if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT
DEBUG_PRINTF(wxObject *wxCreateDynamicObject)
}
}
+// iterator interface
+wxClassInfo::const_iterator::value_type
+wxClassInfo::const_iterator::operator*() const
+{
+ return (wxClassInfo*)m_node->GetData();
+}
+
+wxClassInfo::const_iterator& wxClassInfo::const_iterator::operator++()
+{
+ m_node = m_table->Next();
+ return *this;
+}
+
+const wxClassInfo::const_iterator wxClassInfo::const_iterator::operator++(int)
+{
+ wxClassInfo::const_iterator tmp = *this;
+ m_node = m_table->Next();
+ return tmp;
+}
+
+wxClassInfo::const_iterator wxClassInfo::begin_classinfo()
+{
+ sm_classTable->BeginFind();
+
+ return const_iterator(sm_classTable->Next(), sm_classTable);
+}
+
+wxClassInfo::const_iterator wxClassInfo::end_classinfo()
+{
+ return const_iterator(NULL, NULL);
+}
// ----------------------------------------------------------------------------
-// wxObject
+// wxObjectRefData
// ----------------------------------------------------------------------------
-// Initialize ref data from another object (needed for copy constructor and
-// assignment operator)
-void wxObject::InitFrom(const wxObject& other)
+void wxObjectRefData::DecRef()
{
- m_refData = other.m_refData;
- if ( m_refData )
- m_refData->m_count++;
+ if ( --m_count == 0 )
+ delete this;
}
+
+// ----------------------------------------------------------------------------
+// wxObject
+// ----------------------------------------------------------------------------
+
void wxObject::Ref(const wxObject& clone)
{
#if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT
if ( clone.m_refData )
{
m_refData = clone.m_refData;
- ++(m_refData->m_count);
+ m_refData->IncRef();
}
}
{
wxASSERT_MSG( m_refData->m_count > 0, _T("invalid ref data count") );
- if ( !--m_refData->m_count )
- delete m_refData;
+ m_refData->DecRef();
m_refData = NULL;
}
}
projects / wxWidgets.git / blobdiff