/////////////////////////////////////////////////////////////////////////////
-// 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 <ron@debian.org>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#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;
+class WXDLLIMPEXP_FWD_BASE wxObject;
+class WXDLLIMPEXP_FWD_BASE wxString;
-#if wxUSE_DYNAMIC_CLASSES
+#ifndef wxUSE_EXTENDED_RTTI
+#define wxUSE_EXTENDED_RTTI 0
+#endif
+
+#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
// ----------------------------------------------------------------------------
// 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
-
+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;
// ----------------------------------------------------------------------------
// wxClassInfo
typedef wxObject *(*wxObjectConstructorFn)(void);
-class WXDLLEXPORT wxClassInfo
+class WXDLLIMPEXP_BASE wxClassInfo
{
+ friend class WXDLLIMPEXP_FWD_BASE wxObject;
+ friend WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& name);
public:
wxClassInfo( const wxChar *className,
- const wxChar *baseName1,
- const wxChar *baseName2,
+ const wxClassInfo *baseInfo1,
+ const wxClassInfo *baseInfo2,
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_baseInfo1(baseInfo1)
+ , m_baseInfo2(baseInfo2)
, m_next(sm_first)
- { sm_first = this; }
+ {
+ sm_first = this;
+ Register();
+ }
+
+ ~wxClassInfo();
- wxObject *CreateObject() { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
+ 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_baseClassName1; }
- const wxChar *GetBaseClassName2() const { return m_baseClassName2; }
+ 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; }
+ 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);
-
+ static wxClassInfo *FindClass(const wxString& className);
+
// Climb upwards through inheritance hierarchy.
// Dual inheritance is catered for.
( 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:
+ DECLARE_CLASS_INFO_ITERATORS()
+private:
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
+ // Pointers to base wxClassInfos
const wxClassInfo *m_baseInfo1;
const wxClassInfo *m_baseInfo2;
wxClassInfo *m_next;
static wxHashTable *sm_classTable;
-};
-WXDLLEXPORT wxObject *wxCreateDynamicObject(const wxChar *name);
+protected:
+ // registers the class
+ void Register();
+ void Unregister();
+
+ wxDECLARE_NO_COPY_CLASS(wxClassInfo);
+};
+WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& 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) \
+ 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)
+
+// 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), \
+ func); \
+ \
+ wxClassInfo *name::GetClassInfo() const \
+ { return &name::ms_classInfo; }
+
+#define wxIMPLEMENT_CLASS_COMMON1(name, basename, func) \
+ wxIMPLEMENT_CLASS_COMMON(name, basename, NULL, func)
+
+#define wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, func) \
+ wxIMPLEMENT_CLASS_COMMON(name, basename1, &basename2::ms_classInfo, func)
+
// -----------------------------------
// 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);
+#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \
+ wxIMPLEMENT_CLASS_COMMON1(name, basename, name::wxCreateObject) \
+ wxObject* name::wxCreateObject() \
+ { return new 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);
+#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \
+ wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, \
+ name::wxCreateObject) \
+ wxObject* name::wxCreateObject() \
+ { return new 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);
+#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) \
- wxClassInfo name::sm_class##name(wxT(#name), wxT(#basename1), \
- wxT(#basename2), (int) sizeof(name), \
- (wxObjectConstructorFn) 0);
+#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \
+ wxIMPLEMENT_CLASS_COMMON2(name, basename1, basename2, NULL)
#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
+#endif // !wxUSE_EXTENDED_RTTI
+
+
// -----------------------------------
// for pluggable classes
// -----------------------------------
#if wxUSE_NESTED_CLASSES
-#if 0
-#define _DECLARE_DL_SENTINEL(name) \
- wxPluginSentinel m_pluginsentinel;
-
-#else
-
-#define _DECLARE_DL_SENTINEL(name) \
-class name##PluginSentinel { \
-private: \
- static const wxString sm_className; \
-public: \
- name##PluginSentinel(); \
- ~##name##PluginSentinel(); \
-}; \
+#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;
-#endif
#define _IMPLEMENT_DL_SENTINEL(name) \
const wxString name::name##PluginSentinel::sm_className(#name); \
name::name##PluginSentinel::name##PluginSentinel() { \
- wxDLManifestEntry *e = (wxDLManifestEntry*) wxDLManifestEntry::ms_classes.Get(#name); \
- if( e != 0 ) { e->Ref(); } \
+ wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \
+ if( e != 0 ) { e->RefObj(); } \
} \
- name::name##PluginSentinel::~##name##PluginSentinel() { \
- wxDLManifestEntry *e = (wxDLManifestEntry*) wxDLManifestEntry::ms_classes.Get(#name); \
- if( e != 0 ) { wxCHECK_RET( !e->Unref(), _T("premature library unlinking") ); } \
+ name::name##PluginSentinel::~name##PluginSentinel() { \
+ wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name); \
+ if( e != 0 ) { e->UnrefObj(); } \
}
#else
#endif // wxUSE_NESTED_CLASSES
#define DECLARE_PLUGGABLE_CLASS(name) \
- DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name)
-
+ DECLARE_DYNAMIC_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE)
#define DECLARE_ABSTRACT_PLUGGABLE_CLASS(name) \
- DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name)
+ DECLARE_ABSTRACT_CLASS(name) _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE)
+
+#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::sm_class##name)
+#define CLASSINFO(name) (&name::ms_classInfo)
-#else // !wxUSE_DYNAMIC_CLASSES
+#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo)
- // No dynamic class system: so stub out the macros
+// Just seems a bit nicer-looking (pretend it's not a macro)
+#define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo)
-#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
+// 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<wxObject *>(static_cast<const wxObject *>(\
+ const_cast<className *>(static_cast<const className *>(obj)))), \
+ &className::ms_classInfo))
-#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)
+// 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)
-#endif // wxUSE_DYNAMIC_CLASSES
+// FIXME-VC6: dummy argument needed because VC6 doesn't support explicitly
+// choosing the template function to call
+template <class T>
+inline T *wxCheckCast(const void *ptr, T * = NULL)
+{
+ wxASSERT_MSG( wxDynamicCast(ptr, T), "wxStaticCast() used incorrectly" );
+ return const_cast<T *>(static_cast<const T *>(ptr));
+}
+#define wxStaticCast(obj, className) wxCheckCast((obj), (className *)NULL)
-#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
+// ----------------------------------------------------------------------------
+// set up memory debugging macros
+// ----------------------------------------------------------------------------
- // Just seems a bit nicer-looking (pretend it's not a macro)
+/*
+ Which new/delete operator variants do we want?
-#define wxIsKindOf(obj, className) obj->IsKindOf(&className::sm_class##className)
+ _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 )
+*/
- // to be replaced by dynamic_cast<> in the future
+#if wxUSE_MEMORY_TRACING
-#define wxDynamicCast(obj, className) \
- (className *) wxCheckDynamicCast((wxObject*)(obj), &className::sm_class##className)
+// All compilers get this one
+#define _WX_WANT_NEW_SIZET_WXCHAR_INT
- // The 'this' pointer is always true, so use this version
- // to cast the this pointer and avoid compiler warnings.
+// Everyone except Visage gets the next one
+#ifndef __VISAGECPP__
+ #define _WX_WANT_DELETE_VOID
+#endif
-#define wxDynamicCastThis(className) \
- (IsKindOf(&className::sm_class##className) ? (className *)(this) : (className *)0)
+// Only visage gets this one under the correct circumstances
+#if defined(__VISAGECPP__) && __DEBUG_ALLOC__
+ #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
+#endif
-#define wxConstCast(obj, className) ((className *)(obj))
+// 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
+// Now see who (if anyone) gets the array memory operators
+#if wxUSE_ARRAY_MEMORY_OPERATORS
-#ifdef __WXDEBUG__
-inline void wxCheckCast(void *ptr)
-{
- wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
-}
-#define wxStaticCast(obj, className) \
- (wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
+ // Everyone except Visual C++ (cause problems for VC++ - crashes)
+ #if !defined(__VISUALC__)
+ #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
+ #endif
-#else // !__WXDEBUG__
-#define wxStaticCast(obj, className) ((className *)(obj))
+ // Everyone except Visual C++ (cause problems for VC++ - crashes)
+ #if !defined(__VISUALC__)
+ #define _WX_WANT_ARRAY_DELETE_VOID
+ #endif
-#endif // __WXDEBUG__
+ // Only CodeWarrior 6 or higher
+ #if defined(__MWERKS__) && (__MWERKS__ >= 0x2400)
+ #define _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
+ #endif
+#endif // wxUSE_ARRAY_MEMORY_OPERATORS
- // Unfortunately Borland seems to need this include.
+#endif // wxUSE_MEMORY_TRACING
-#if wxUSE_STD_IOSTREAM \
- && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT) \
- && defined(__BORLANDC__)
-#if wxUSE_IOSTREAMH
-#include <iostream.h>
-#else
-#include <iostream>
-#endif
-#endif
+// ----------------------------------------------------------------------------
+// wxObjectRefData: ref counted data meant to be stored in wxObject
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxObjectRefData
+{
+ friend class WXDLLIMPEXP_FWD_BASE wxObject;
+
+public:
+ 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() { }
+
+private:
+ // our refcount:
+ int m_count;
+};
// ----------------------------------------------------------------------------
-// wxObject
+// wxObjectDataPtr: helper class to avoid memleaks because of missing calls
+// to wxObjectRefData::DecRef
// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxObjectRefData;
+template <class T>
+class wxObjectDataPtr
+{
+public:
+ typedef T element_type;
+
+ wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {}
+
+ // copy ctor
+ wxObjectDataPtr(const wxObjectDataPtr<T> &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; }
+
+ // 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<T>::*unspecified_bool_type)() const;
+ operator unspecified_bool_type() const
+ {
+ return m_ptr ? &wxObjectDataPtr<T>::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;
+};
-class WXDLLEXPORT wxObject
+// ----------------------------------------------------------------------------
+// wxObject: the root class of wxWidgets object hierarchy
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_BASE wxObject
{
-DECLARE_ABSTRACT_CLASS(wxObject)
+ DECLARE_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->m_count++;
+ }
-#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
- void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0);
+ wxObject& operator=(const wxObject& other)
+ {
+ if ( this != &other )
+ {
+ Ref(other);
+ }
+ return *this;
+ }
-#ifndef __VISAGECPP__
- void operator delete (void * buf);
-#elif __DEBUG_ALLOC__
- void operator delete (void *buf, const char *_fname, size_t _line);
-#endif
+ bool IsKindOf(const wxClassInfo *info) const;
- // VC++ 6.0
-#if defined(__VISUALC__) && (__VISUALC__ >= 1200)
- void operator delete(void *buf, wxChar*, int);
+ // 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
- // 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
- // make a 'clone' of the object
-
+ // 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
-
+ // destroy a reference
void UnRef();
- inline wxObjectRefData *GetRefData() const { return m_refData; }
- inline void SetRefData(wxObjectRefData *data) { m_refData = data; }
+ // 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:
- wxObjectRefData *m_refData;
-};
+ // 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
-class WXDLLEXPORT wxObjectRefData
-{
- friend class wxObject;
+ // create a new m_refData
+ virtual wxObjectRefData *CreateRefData() const;
-public:
- wxObjectRefData() : m_count(1) {}
- virtual ~wxObjectRefData() {}
+ // create a new m_refData initialized with the given one
+ virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
- inline int GetRefCount() const { return m_count; }
-private:
- int m_count;
+ wxObjectRefData *m_refData;
};
-
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
+#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
-#define WXDEBUG_NEW new
+ wxDynamicClassInfo *nonconst = const_cast<wxDynamicClassInfo *>(m_classInfo);
+ return static_cast<wxClassInfo *>(nonconst);
#endif
+ }
- // 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.
+ wxObject* GetSuperClassInstance() const
+ {
+ return m_superClassInstance ;
+ }
+private :
+ // removes an existing runtime-property
+ void RemoveProperty( const wxChar *propertyName ) ;
-#if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
-#define new new(__TFILE__,__LINE__)
+ // 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
-#endif // _WX_OBJECTH__
+// ----------------------------------------------------------------------------
+// more debugging macros
+// ----------------------------------------------------------------------------
+
+#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
-// vi:sts=4:sw=4:et
+#endif // _WX_OBJECTH__
projects / wxWidgets.git / blobdiff