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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: querydeep.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: rt $ $Date: 2005-09-08 02:51:50 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#ifndef _COMPHELPER_QUERYDEEPINTERFACE_HXX
#include <comphelper/querydeep.hxx>
#endif
#ifndef _TYPELIB_TYPEDESCRIPTION_H_
#include <typelib/typedescription.h>
#endif
//__________________________________________________________________________________________________
sal_Bool comphelper::isDerivedFrom(
const ::com::sun::star::uno::Type & rBaseType,
const ::com::sun::star::uno::Type & rType )
{
using namespace ::com::sun::star::uno;
TypeClass eClass = rBaseType.getTypeClass();
if (eClass != TypeClass_INTERFACE)
return sal_False;
// supported TypeClass - do the types match ?
if (eClass != rType.getTypeClass())
return sal_False;
sal_Bool bRet;
// shortcut for simple case
if (rBaseType == ::getCppuType(static_cast<const Reference< XInterface > *>(0)))
{
bRet = sal_True;
}
else
{
// now ask in cppu (aka typelib)
::typelib_TypeDescription *pBaseTD = 0, *pTD = 0;
rBaseType. getDescription(&pBaseTD);
rType. getDescription(&pTD);
// interfaces are assignable to a base
bRet = ::typelib_typedescription_isAssignableFrom(pBaseTD, pTD);
::typelib_typedescription_release(pBaseTD);
::typelib_typedescription_release(pTD);
}
return bRet;
}
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