This compiler doesn't exist any more and was probably unsupported even in 2.8, let alone 2.9, so remove all the __MWERKS__ tests to simplify things. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@71102 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
		
			
				
	
	
		
			499 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			499 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/////////////////////////////////////////////////////////////////////////////
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// Name:        wx/object.h
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// Purpose:     wxObject class, plus run-time type information macros
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// Author:      Julian Smart
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// Modified by: Ron Lee
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// Created:     01/02/97
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// RCS-ID:      $Id$
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// Copyright:   (c) 1997 Julian Smart
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//              (c) 2001 Ron Lee <ron@debian.org>
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// Licence:     wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_OBJECTH__
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#define _WX_OBJECTH__
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/memory.h"
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#define wxDECLARE_CLASS_INFO_ITERATORS()                                     \
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class WXDLLIMPEXP_BASE const_iterator                                    \
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    {                                                                        \
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    typedef wxHashTable_Node Node;                                       \
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    public:                                                                  \
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    typedef const wxClassInfo* value_type;                               \
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    typedef const value_type& const_reference;                           \
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    typedef const_iterator itor;                                         \
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    typedef value_type* ptr_type;                                        \
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    \
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    Node* m_node;                                                        \
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    wxHashTable* m_table;                                                \
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    public:                                                                  \
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    typedef const_reference reference_type;                              \
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    typedef ptr_type pointer_type;                                       \
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    \
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    const_iterator(Node* node, wxHashTable* table)                       \
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    : m_node(node), m_table(table) { }                               \
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    const_iterator() : m_node(NULL), m_table(NULL) { }                   \
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    value_type operator*() const;                                        \
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    itor& operator++();                                                  \
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    const itor operator++(int);                                          \
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    bool operator!=(const itor& it) const                                \
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            { return it.m_node != m_node; }                                  \
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            bool operator==(const itor& it) const                                \
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            { return it.m_node == m_node; }                                  \
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    };                                                                       \
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    \
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    static const_iterator begin_classinfo();                                 \
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    static const_iterator end_classinfo()
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// based on the value of wxUSE_EXTENDED_RTTI symbol,
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// only one of the RTTI system will be compiled:
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// - the "old" one (defined by rtti.h) or
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// - the "new" one (defined by xti.h)
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#include "wx/xti.h"
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#include "wx/rtti.h"
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#define wxIMPLEMENT_CLASS(name, basename)                                     \
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    wxIMPLEMENT_ABSTRACT_CLASS(name, basename)
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#define wxIMPLEMENT_CLASS2(name, basename1, basename2)                        \
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    wxIMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)
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// -----------------------------------
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// for pluggable classes
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// -----------------------------------
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    // NOTE: this should probably be the very first statement
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    //       in the class declaration so wxPluginSentinel is
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    //       the first member initialised and the last destroyed.
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// _DECLARE_DL_SENTINEL(name) wxPluginSentinel m_pluginsentinel;
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#if wxUSE_NESTED_CLASSES
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#define _DECLARE_DL_SENTINEL(name, exportdecl)  \
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class exportdecl name##PluginSentinel {         \
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private:                                        \
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    static const wxString sm_className;         \
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public:                                         \
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    name##PluginSentinel();                     \
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    ~name##PluginSentinel();                    \
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};                                              \
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name##PluginSentinel  m_pluginsentinel
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#define _IMPLEMENT_DL_SENTINEL(name)                                \
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 const wxString name::name##PluginSentinel::sm_className(#name);    \
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 name::name##PluginSentinel::name##PluginSentinel() {               \
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    wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
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    if( e != 0 ) { e->RefObj(); }                                      \
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 }                                                                  \
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 name::name##PluginSentinel::~name##PluginSentinel() {            \
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    wxPluginLibrary *e = (wxPluginLibrary*) wxPluginLibrary::ms_classes.Get(#name);   \
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    if( e != 0 ) { e->UnrefObj(); }                                 \
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 }
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#else
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#define _DECLARE_DL_SENTINEL(name)
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#define _IMPLEMENT_DL_SENTINEL(name)
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#endif  // wxUSE_NESTED_CLASSES
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#define wxDECLARE_PLUGGABLE_CLASS(name) \
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 wxDECLARE_DYNAMIC_CLASS(name); _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE)
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#define wxDECLARE_ABSTRACT_PLUGGABLE_CLASS(name)  \
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 wxDECLARE_ABSTRACT_CLASS(name); _DECLARE_DL_SENTINEL(name, WXDLLIMPEXP_CORE)
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#define wxDECLARE_USER_EXPORTED_PLUGGABLE_CLASS(name, usergoo) \
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 wxDECLARE_DYNAMIC_CLASS(name); _DECLARE_DL_SENTINEL(name, usergoo)
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#define wxDECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, usergoo)  \
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 wxDECLARE_ABSTRACT_CLASS(name); _DECLARE_DL_SENTINEL(name, usergoo)
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#define wxIMPLEMENT_PLUGGABLE_CLASS(name, basename) \
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 wxIMPLEMENT_DYNAMIC_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
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#define wxIMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
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 wxIMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
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#define wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
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 wxIMPLEMENT_ABSTRACT_CLASS(name, basename) _IMPLEMENT_DL_SENTINEL(name)
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#define wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
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 wxIMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) _IMPLEMENT_DL_SENTINEL(name)
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#define wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS(name, basename) \
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 wxIMPLEMENT_PLUGGABLE_CLASS(name, basename)
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#define wxIMPLEMENT_USER_EXPORTED_PLUGGABLE_CLASS2(name, basename1, basename2)  \
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 wxIMPLEMENT_PLUGGABLE_CLASS2(name, basename1, basename2)
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#define wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(name, basename) \
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 wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS(name, basename)
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#define wxIMPLEMENT_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)  \
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 wxIMPLEMENT_ABSTRACT_PLUGGABLE_CLASS2(name, basename1, basename2)
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#define wxCLASSINFO(name) (&name::ms_classInfo)
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#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::ms_classInfo)
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// Just seems a bit nicer-looking (pretend it's not a macro)
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#define wxIsKindOf(obj, className) obj->IsKindOf(&className::ms_classInfo)
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// this cast does some more checks at compile time as it uses static_cast
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// internally
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//
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// note that it still has different semantics from dynamic_cast<> and so can't
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// be replaced by it as long as there are any compilers not supporting it
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#define wxDynamicCast(obj, className) \
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    ((className *) wxCheckDynamicCast( \
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        const_cast<wxObject *>(static_cast<const wxObject *>(\
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          const_cast<className *>(static_cast<const className *>(obj)))), \
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        &className::ms_classInfo))
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// The 'this' pointer is always true, so use this version
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// to cast the this pointer and avoid compiler warnings.
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#define wxDynamicCastThis(className) \
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     (IsKindOf(&className::ms_classInfo) ? (className *)(this) : (className *)0)
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// FIXME-VC6: dummy argument needed because VC6 doesn't support explicitly
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//            choosing the template function to call
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template <class T>
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inline T *wxCheckCast(const void *ptr, T * = NULL)
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{
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    wxASSERT_MSG( wxDynamicCast(ptr, T), "wxStaticCast() used incorrectly" );
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    return const_cast<T *>(static_cast<const T *>(ptr));
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}
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#define wxStaticCast(obj, className) wxCheckCast((obj), (className *)NULL)
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// ----------------------------------------------------------------------------
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// set up memory debugging macros
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// ----------------------------------------------------------------------------
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/*
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    Which new/delete operator variants do we want?
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    _WX_WANT_NEW_SIZET_WXCHAR_INT             = void *operator new (size_t size, wxChar *fileName = 0, int lineNum = 0)
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    _WX_WANT_DELETE_VOID                      = void operator delete (void * buf)
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    _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET      = void operator delete (void *buf, const char *_fname, size_t _line)
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    _WX_WANT_DELETE_VOID_WXCHAR_INT           = void operator delete(void *buf, wxChar*, int)
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    _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT       = void *operator new[] (size_t size, wxChar *fileName , int lineNum = 0)
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    _WX_WANT_ARRAY_DELETE_VOID                = void operator delete[] (void *buf)
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    _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT     = void operator delete[] (void* buf, wxChar*, int )
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*/
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#if wxUSE_MEMORY_TRACING
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// All compilers get this one
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#define _WX_WANT_NEW_SIZET_WXCHAR_INT
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// Everyone except Visage gets the next one
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#ifndef __VISAGECPP__
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    #define _WX_WANT_DELETE_VOID
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#endif
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// Only visage gets this one under the correct circumstances
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#if defined(__VISAGECPP__) && __DEBUG_ALLOC__
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    #define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
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#endif
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// Only VC++ 6 gets overloaded delete that matches new
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#if (defined(__VISUALC__) && (__VISUALC__ >= 1200))
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    #define _WX_WANT_DELETE_VOID_WXCHAR_INT
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#endif
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// Now see who (if anyone) gets the array memory operators
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#if wxUSE_ARRAY_MEMORY_OPERATORS
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    // Everyone except Visual C++ (cause problems for VC++ - crashes)
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    #if !defined(__VISUALC__)
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        #define _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
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    #endif
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    // Everyone except Visual C++ (cause problems for VC++ - crashes)
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    #if !defined(__VISUALC__)
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        #define _WX_WANT_ARRAY_DELETE_VOID
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    #endif
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#endif // wxUSE_ARRAY_MEMORY_OPERATORS
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#endif // wxUSE_MEMORY_TRACING
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// ----------------------------------------------------------------------------
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// Compatibility macro aliases DECLARE group
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// ----------------------------------------------------------------------------
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// deprecated variants _not_ requiring a semicolon after them and without wx prefix.
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// (note that also some wx-prefixed macro do _not_ require a semicolon because
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//  it's not always possible to force the compire to require it)
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#define DECLARE_CLASS_INFO_ITERATORS()                              wxDECLARE_CLASS_INFO_ITERATORS();
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#define DECLARE_ABSTRACT_CLASS(n)                                   wxDECLARE_ABSTRACT_CLASS(n);
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#define DECLARE_DYNAMIC_CLASS_NO_ASSIGN(n)                          wxDECLARE_DYNAMIC_CLASS_NO_ASSIGN(n);
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#define DECLARE_DYNAMIC_CLASS_NO_COPY(n)                            wxDECLARE_DYNAMIC_CLASS_NO_COPY(n);
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#define DECLARE_DYNAMIC_CLASS(n)                                    wxDECLARE_DYNAMIC_CLASS(n);
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#define DECLARE_CLASS(n)                                            wxDECLARE_CLASS(n);
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#define DECLARE_PLUGGABLE_CLASS(n)                                  wxDECLARE_PLUGGABLE_CLASS(n);
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#define DECLARE_ABSTRACT_PLUGGABLE_CLASS(n)                         wxDECLARE_ABSTRACT_PLUGGABLE_CLASS(n);
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#define DECLARE_USER_EXPORTED_PLUGGABLE_CLASS(n,u)                  wxDECLARE_USER_EXPORTED_PLUGGABLE_CLASS(n,u);
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#define DECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,u)         wxDECLARE_USER_EXPORTED_ABSTRACT_PLUGGABLE_CLASS(n,u);
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// ----------------------------------------------------------------------------
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// wxRefCounter: ref counted data "manager"
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxRefCounter
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{
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public:
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    wxRefCounter() { m_count = 1; }
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    int GetRefCount() const { return m_count; }
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    void IncRef() { m_count++; }
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    void DecRef();
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protected:
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    // this object should never be destroyed directly but only as a
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    // result of a DecRef() call:
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    virtual ~wxRefCounter() { }
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private:
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    // our refcount:
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    int m_count;
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    // It doesn't make sense to copy the reference counted objects, a new ref
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    // counter should be created for a new object instead and compilation
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    // errors in the code using wxRefCounter due to the lack of copy ctor often
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    // indicate a problem, e.g. a forgotten copy ctor implementation somewhere.
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    wxDECLARE_NO_COPY_CLASS(wxRefCounter);
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};
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// ----------------------------------------------------------------------------
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// wxObjectRefData: ref counted data meant to be stored in wxObject
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// ----------------------------------------------------------------------------
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typedef wxRefCounter wxObjectRefData;
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// ----------------------------------------------------------------------------
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// wxObjectDataPtr: helper class to avoid memleaks because of missing calls
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//                  to wxObjectRefData::DecRef
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// ----------------------------------------------------------------------------
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template <class T>
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class wxObjectDataPtr
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{
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public:
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    typedef T element_type;
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    wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {}
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    // copy ctor
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    wxObjectDataPtr(const wxObjectDataPtr<T> &tocopy)
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        : m_ptr(tocopy.m_ptr)
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    {
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        if (m_ptr)
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            m_ptr->IncRef();
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    }
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    ~wxObjectDataPtr()
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    {
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        if (m_ptr)
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            m_ptr->DecRef();
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    }
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    T *get() const { return m_ptr; }
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    // test for pointer validity: defining conversion to unspecified_bool_type
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    // and not more obvious bool to avoid implicit conversions to integer types
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    typedef T *(wxObjectDataPtr<T>::*unspecified_bool_type)() const;
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    operator unspecified_bool_type() const
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    {
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        return m_ptr ? &wxObjectDataPtr<T>::get : NULL;
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    }
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    T& operator*() const
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    {
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        wxASSERT(m_ptr != NULL);
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        return *(m_ptr);
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    }
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    T *operator->() const
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    {
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        wxASSERT(m_ptr != NULL);
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        return get();
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    }
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    void reset(T *ptr)
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    {
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        if (m_ptr)
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            m_ptr->DecRef();
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        m_ptr = ptr;
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    }
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    wxObjectDataPtr& operator=(const wxObjectDataPtr &tocopy)
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    {
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        if (m_ptr)
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            m_ptr->DecRef();
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        m_ptr = tocopy.m_ptr;
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        if (m_ptr)
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            m_ptr->IncRef();
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        return *this;
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    }
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    wxObjectDataPtr& operator=(T *ptr)
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    {
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        if (m_ptr)
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            m_ptr->DecRef();
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        m_ptr = ptr;
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        return *this;
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    }
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private:
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    T *m_ptr;
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};
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// ----------------------------------------------------------------------------
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// wxObject: the root class of wxWidgets object hierarchy
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_BASE wxObject
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{
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    wxDECLARE_ABSTRACT_CLASS(wxObject);
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public:
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    wxObject() { m_refData = NULL; }
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    virtual ~wxObject() { UnRef(); }
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    wxObject(const wxObject& other)
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						|
    {
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         m_refData = other.m_refData;
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         if (m_refData)
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             m_refData->IncRef();
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    }
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    wxObject& operator=(const wxObject& other)
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    {
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        if ( this != &other )
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						|
        {
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            Ref(other);
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        }
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        return *this;
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    }
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    bool IsKindOf(const wxClassInfo *info) const;
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 | 
						|
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    // Turn on the correct set of new and delete operators
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#ifdef _WX_WANT_NEW_SIZET_WXCHAR_INT
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    void *operator new ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
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#endif
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						|
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#ifdef _WX_WANT_DELETE_VOID
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    void operator delete ( void * buf );
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#endif
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#ifdef _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
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    void operator delete ( void *buf, const char *_fname, size_t _line );
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#endif
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 | 
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#ifdef _WX_WANT_DELETE_VOID_WXCHAR_INT
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    void operator delete ( void *buf, const wxChar*, int );
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#endif
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						|
 | 
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#ifdef _WX_WANT_ARRAY_NEW_SIZET_WXCHAR_INT
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    void *operator new[] ( size_t size, const wxChar *fileName = NULL, int lineNum = 0 );
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#endif
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 | 
						|
#ifdef _WX_WANT_ARRAY_DELETE_VOID
 | 
						|
    void operator delete[] ( void *buf );
 | 
						|
#endif
 | 
						|
 | 
						|
#ifdef _WX_WANT_ARRAY_DELETE_VOID_WXCHAR_INT
 | 
						|
    void operator delete[] (void* buf, const wxChar*, int );
 | 
						|
#endif
 | 
						|
 | 
						|
    // 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
 | 
						|
    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 AllocExclusive() is used, not pure
 | 
						|
    // virtual only because of the backwards compatibility reasons
 | 
						|
 | 
						|
    // create a new m_refData
 | 
						|
    virtual wxObjectRefData *CreateRefData() const;
 | 
						|
 | 
						|
    // create a new m_refData initialized with the given one
 | 
						|
    virtual wxObjectRefData *CloneRefData(const wxObjectRefData *data) const;
 | 
						|
 | 
						|
    wxObjectRefData *m_refData;
 | 
						|
};
 | 
						|
 | 
						|
inline wxObject *wxCheckDynamicCast(wxObject *obj, wxClassInfo *classInfo)
 | 
						|
{
 | 
						|
    return obj && obj->GetClassInfo()->IsKindOf(classInfo) ? obj : NULL;
 | 
						|
}
 | 
						|
 | 
						|
#include "wx/xti2.h"
 | 
						|
 | 
						|
// ----------------------------------------------------------------------------
 | 
						|
// 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
 | 
						|
 | 
						|
// ----------------------------------------------------------------------------
 | 
						|
// Compatibility macro aliases IMPLEMENT 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 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__
 |