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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef _XMLOFF_FORMS_IFACECOMPARE_HXX_
#define _XMLOFF_FORMS_IFACECOMPARE_HXX_
#include <comphelper/stl_types.hxx>
#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/drawing/XDrawPage.hpp>
namespace xmloff
{
//= OInterfaceCompare
/** is stl-compliant structure for comparing Reference< <iface> > instances
*/
template < class IAFCE >
struct OInterfaceCompare
:public ::std::binary_function < ::com::sun::star::uno::Reference< IAFCE >
, ::com::sun::star::uno::Reference< IAFCE >
, bool
>
{
bool operator() (const ::com::sun::star::uno::Reference< IAFCE >& lhs, const ::com::sun::star::uno::Reference< IAFCE >& rhs) const
{
return lhs.get() < rhs.get();
// this does not make any sense if you see the semantics of the pointer returned by get:
// It's a pointer to a point in memory where an interface implementation lies.
// But for our purpose (provide a reliable less-operator which can be used with the STL), this is
// sufficient ....
}
};
typedef OInterfaceCompare< ::com::sun::star::beans::XPropertySet > OPropertySetCompare;
typedef OInterfaceCompare< ::com::sun::star::drawing::XDrawPage > ODrawPageCompare;
} // namespace xmloff
#endif // _XMLOFF_FORMS_IFACECOMPARE_HXX_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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