f763782968
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11078 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
320 lines
9.4 KiB
C++
320 lines
9.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: 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:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart and Markus Holzem
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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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#ifdef __GNUG__
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#pragma interface "object.h"
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#endif
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#include "wx/defs.h"
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#include "wx/memory.h"
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class WXDLLEXPORT wxObject;
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#if wxUSE_DYNAMIC_CLASSES
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// #ifdef __GNUWIN32__
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#ifdef GetClassName
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#undef GetClassName
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#endif
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#ifdef GetClassInfo
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#undef GetClassInfo
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#endif
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// #endif
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class WXDLLEXPORT wxClassInfo;
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class WXDLLEXPORT wxInputStream;
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class WXDLLEXPORT wxOutputStream;
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class WXDLLEXPORT wxObjectInputStream;
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class WXDLLEXPORT wxObjectOutputStream;
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class WXDLLEXPORT wxHashTable;
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class WXDLLEXPORT wxObject_Serialize;
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#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
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#include "wx/ioswrap.h"
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#endif
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/*
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* Dynamic object system declarations
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*/
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typedef wxObject * (*wxObjectConstructorFn) (void);
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class WXDLLEXPORT wxClassInfo
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{
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public:
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wxClassInfo(const wxChar *cName,
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const wxChar *baseName1,
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const wxChar *baseName2,
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int sz,
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wxObjectConstructorFn fn);
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wxObject *CreateObject(void);
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const wxChar *GetClassName() const { return m_className; }
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const wxChar *GetBaseClassName1() const { return m_baseClassName1; }
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const wxChar *GetBaseClassName2() const { return m_baseClassName2; }
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const wxClassInfo* GetBaseClass1() const { return m_baseInfo1; }
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const wxClassInfo* GetBaseClass2() const { return m_baseInfo2; }
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int GetSize() const { return m_objectSize; }
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wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; }
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static const wxClassInfo* GetFirst() { return sm_first; }
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const wxClassInfo* GetNext() const { return m_next; }
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bool IsKindOf(const wxClassInfo *info) const;
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static wxClassInfo *FindClass(const wxChar *c);
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// Initializes parent pointers and hash table for fast searching.
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static void InitializeClasses();
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// Cleans up hash table used for fast searching.
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static void CleanUpClasses();
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public:
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const wxChar* m_className;
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const wxChar* m_baseClassName1;
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const wxChar* m_baseClassName2;
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int m_objectSize;
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wxObjectConstructorFn m_objectConstructor;
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// Pointers to base wxClassInfos: set in InitializeClasses
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const wxClassInfo* m_baseInfo1;
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const wxClassInfo* m_baseInfo2;
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// class info object live in a linked list: pointers to its head and the
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// next element in it
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static wxClassInfo* sm_first;
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wxClassInfo* m_next;
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static wxHashTable* sm_classTable;
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};
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WXDLLEXPORT wxObject* wxCreateDynamicObject(const wxChar *name);
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#if wxUSE_SERIAL
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WXDLLEXPORT wxObject* wxCreateStoredObject( wxInputStream& stream );
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#endif
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#define DECLARE_DYNAMIC_CLASS(name) \
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public:\
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static wxClassInfo sm_class##name;\
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wxClassInfo *GetClassInfo() const \
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{ return &name::sm_class##name; }
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#define DECLARE_ABSTRACT_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
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#define DECLARE_CLASS(name) DECLARE_DYNAMIC_CLASS(name)
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//////
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////// for concrete classes
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//////
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// Single inheritance with one base class
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#define IMPLEMENT_DYNAMIC_CLASS(name, basename) \
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wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \
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{ return new name; }\
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wxClassInfo name::sm_class##name((wxChar *) wxT(#name), (wxChar *) wxT(#basename), (wxChar *) NULL, (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name);
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// Multiple inheritance with two base classes
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#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2) \
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wxObject* WXDLLEXPORT_CTORFN wxConstructorFor##name(void) \
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{ return new name; }\
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wxClassInfo name::sm_class##name((wxChar *) wxT(#name), (wxChar *) wxT(#basename1), (wxChar *) wxT(#basename2), (int) sizeof(name), (wxObjectConstructorFn) wxConstructorFor##name);
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//////
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////// for abstract classes
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//////
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// Single inheritance with one base class
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#define IMPLEMENT_ABSTRACT_CLASS(name, basename) \
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wxClassInfo name::sm_class##name((wxChar *) wxT(#name), (wxChar *) wxT(#basename), \
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(wxChar *) NULL, (int) sizeof(name), (wxObjectConstructorFn) NULL);
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// Multiple inheritance with two base classes
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#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2) \
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wxClassInfo name::sm_class##name((wxChar *) wxT(#name), (wxChar *) wxT(#basename1), \
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(wxChar *) wxT(#basename2), (int) sizeof(name), (wxObjectConstructorFn) NULL);
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#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
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#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
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#define CLASSINFO(name) (&name::sm_class##name)
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#else // !wxUSE_DYNAMIC_CLASSES
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// No dynamic class system: so stub out the macros
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#define DECLARE_DYNAMIC_CLASS(name)
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#define DECLARE_ABSTRACT_CLASS(name)
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#define DECLARE_CLASS(name)
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#define IMPLEMENT_DYNAMIC_CLASS(name, basename)
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#define IMPLEMENT_DYNAMIC_CLASS2(name, basename1, basename2)
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#define IMPLEMENT_ABSTRACT_CLASS(name, basename)
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#define IMPLEMENT_ABSTRACT_CLASS2(name, basename1, basename2)
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#define IMPLEMENT_CLASS IMPLEMENT_ABSTRACT_CLASS
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#define IMPLEMENT_CLASS2 IMPLEMENT_ABSTRACT_CLASS2
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#endif // wxUSE_DYNAMIC_CLASSES/!wxUSE_DYNAMIC_CLASSES
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#define wxIS_KIND_OF(obj, className) obj->IsKindOf(&className::sm_class##className)
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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::sm_class##className)
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// to be replaced by dynamic_cast<> in the future
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#define wxDynamicCast(obj, className) \
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((obj) && ((obj)->IsKindOf(&className::sm_class##className)) \
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? (className *)(obj) \
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: (className *)0)
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// The 'this' pointer is always true, so use this version to cast the this
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// pointer and avoid compiler warnings.
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#define wxDynamicCastThis(className) \
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(IsKindOf(&className::sm_class##className) \
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? (className *)(this) \
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: (className *)0)
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#define wxConstCast(obj, className) ((className *)(obj))
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#ifdef __WXDEBUG__
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inline void wxCheckCast(void *ptr)
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{
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wxASSERT_MSG( ptr, _T("wxStaticCast() used incorrectly") );
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}
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#define wxStaticCast(obj, className) \
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(wxCheckCast(wxDynamicCast(obj, className)), ((className *)(obj)))
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#else // !Debug
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#define wxStaticCast(obj, className) ((className *)(obj))
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#endif // Debug/!Debug
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// Unfortunately Borland seems to need this include.
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#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
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#ifdef __BORLANDC__
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#if wxUSE_IOSTREAMH
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#include <iostream.h>
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#else
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#include <iostream>
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#endif
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#endif
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#endif
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class WXDLLEXPORT wxObjectRefData;
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class WXDLLEXPORT wxObject
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{
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public:
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// This is equivalent to using the macro DECLARE_ABSTRACT_CLASS
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static wxClassInfo sm_classwxObject;
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wxObject(void);
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virtual ~wxObject(void);
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virtual wxClassInfo *GetClassInfo(void) const { return &sm_classwxObject; }
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wxObject *Clone(void) const;
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virtual void CopyObject(wxObject& object_dest) const;
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bool IsKindOf(wxClassInfo *info) const;
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#if defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING
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void * operator new (size_t size, wxChar * fileName = NULL, int lineNum = 0);
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# if defined(__VISAGECPP__)
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# if __DEBUG_ALLOC__
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void operator delete (void * buf,const char * _fname, size_t _line);
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# endif //__DEBUG_ALLOC__
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# else // Everybody else
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void operator delete (void * buf);
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# endif // end of VISAGECPP
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// VC++ 6.0
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# if defined(__VISUALC__) && (__VISUALC__ >= 1200)
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void operator delete(void *buf, wxChar*, int);
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# endif
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// Causes problems for VC++
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# if wxUSE_ARRAY_MEMORY_OPERATORS && !defined(__VISUALC__) && !defined( __MWERKS__)
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void * operator new[] (size_t size, wxChar * fileName = NULL, int lineNum = 0);
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void operator delete[] (void * buf);
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# endif
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# ifdef __MWERKS__
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void * operator new[] (size_t size, wxChar * fileName , int lineNum = 0);
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void * operator new[] (size_t size) { return operator new[] ( size , NULL , 0 ) ; }
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void operator delete[] (void * buf);
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# endif
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#endif // Debug & memory tracing
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#if wxUSE_STD_IOSTREAM && (defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT)
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virtual void Dump(wxSTD ostream& str);
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#endif
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#if wxUSE_SERIAL
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virtual void StoreObject( wxObjectOutputStream &stream );
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virtual void LoadObject( wxObjectInputStream &stream );
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#endif
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// make a 'clone' of the object
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void Ref(const wxObject& clone);
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// destroy a reference
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void UnRef(void);
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inline wxObjectRefData *GetRefData(void) const { return m_refData; }
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inline void SetRefData(wxObjectRefData *data) { m_refData = data; }
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protected:
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wxObjectRefData* m_refData;
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#if wxUSE_SERIAL
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wxObject_Serialize* m_serialObj;
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#endif
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};
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/*
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* wxObjectData
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*/
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class WXDLLEXPORT wxObjectRefData {
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friend class wxObject;
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public:
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wxObjectRefData(void);
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virtual ~wxObjectRefData(void);
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inline int GetRefCount(void) const { return m_count; }
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private:
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int m_count;
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};
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#ifdef __WXDEBUG__
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#ifndef WXDEBUG_NEW
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#define WXDEBUG_NEW new(__TFILE__,__LINE__)
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#endif
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#else
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#define WXDEBUG_NEW new
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#endif
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// Redefine new to be the debugging version. This doesn't
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// work with all compilers, in which case you need to
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// use WXDEBUG_NEW explicitly if you wish to use the debugging version.
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#if defined(__WXDEBUG__) && wxUSE_GLOBAL_MEMORY_OPERATORS && wxUSE_DEBUG_NEW_ALWAYS
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#define new new(__TFILE__,__LINE__)
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#endif
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#endif
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// _WX_OBJECTH__
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