wxWidgets/include/wx/xtihandler.h
2011-01-05 06:56:36 +00:00

111 lines
3.5 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: wx/xtihandler.h
// Purpose: XTI handlers
// Author: Stefan Csomor
// Modified by: Francesco Montorsi
// Created: 27/07/03
// RCS-ID: $Id$
// Copyright: (c) 1997 Julian Smart
// (c) 2003 Stefan Csomor
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#ifndef _XTIHANDLER_H_
#define _XTIHANDLER_H_
#include "wx/defs.h"
#if wxUSE_EXTENDED_RTTI
#include "wx/string.h"
class WXDLLIMPEXP_BASE wxObject;
class WXDLLIMPEXP_BASE wxClassInfo;
class WXDLLIMPEXP_BASE wxDynamicClassInfo;
class WXDLLIMPEXP_BASE wxHashTable;
class WXDLLIMPEXP_BASE wxHashTable_Node;
class WXDLLIMPEXP_BASE wxObjectRefData;
class WXDLLIMPEXP_BASE wxEvent;
class WXDLLIMPEXP_BASE wxEvtHandler;
typedef void (wxObject::*wxObjectEventFunction)(wxEvent&);
// ----------------------------------------------------------------------------
// Handler Info
//
// this describes an event sink
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_BASE wxHandlerInfo
{
friend class WXDLLIMPEXP_BASE wxDynamicClassInfo;
public:
wxHandlerInfo(wxHandlerInfo* &iter,
wxClassInfo* itsClass,
const wxString& name,
wxObjectEventFunction address,
const wxClassInfo* eventClassInfo) :
m_eventFunction(address),
m_name(name),
m_eventClassInfo(eventClassInfo),
m_itsClass(itsClass)
{
Insert(iter);
}
~wxHandlerInfo()
{ Remove(); }
// return the name of this handler
const wxString& GetName() const { return m_name; }
// return the class info of the event
const wxClassInfo *GetEventClassInfo() const { return m_eventClassInfo; }
// get the handler function pointer
wxObjectEventFunction GetEventFunction() const { return m_eventFunction; }
// returns NULL if this is the last handler of this class
wxHandlerInfo* GetNext() const { return m_next; }
// return the class this property is declared in
const wxClassInfo* GetDeclaringClass() const { return m_itsClass; }
private:
// inserts this handler at the end of the linked chain which begins
// with "iter" handler.
void Insert(wxHandlerInfo* &iter);
// removes this handler from the linked chain of the m_itsClass handlers.
void Remove();
wxObjectEventFunction m_eventFunction;
wxString m_name;
const wxClassInfo* m_eventClassInfo;
wxHandlerInfo* m_next;
wxClassInfo* m_itsClass;
};
#define wxHANDLER(name,eventClassType) \
static wxHandlerInfo _handlerInfo##name( first, class_t::GetClassInfoStatic(), \
wxT(#name), (wxObjectEventFunction) (wxEventFunction) &name, \
CLASSINFO( eventClassType ) );
#define wxBEGIN_HANDLERS_TABLE(theClass) \
wxHandlerInfo *theClass::GetHandlersStatic() \
{ \
typedef theClass class_t; \
static wxHandlerInfo* first = NULL;
#define wxEND_HANDLERS_TABLE() \
return first; }
#define wxEMPTY_HANDLERS_TABLE(theClass) \
wxBEGIN_HANDLERS_TABLE(theClass) \
wxEND_HANDLERS_TABLE()
#endif // wxUSE_EXTENDED_RTTI
#endif // _XTIHANDLER_H_