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       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef _XMLOFF_FORMS_IFACECOMPARE_HXX_
      21                 :            : #define _XMLOFF_FORMS_IFACECOMPARE_HXX_
      22                 :            : 
      23                 :            : #include <comphelper/stl_types.hxx>
      24                 :            : #include <com/sun/star/beans/XPropertySet.hpp>
      25                 :            : #include <com/sun/star/drawing/XDrawPage.hpp>
      26                 :            : 
      27                 :            : //.........................................................................
      28                 :            : namespace xmloff
      29                 :            : {
      30                 :            : //.........................................................................
      31                 :            : 
      32                 :            :     //=====================================================================
      33                 :            :     //= OInterfaceCompare
      34                 :            :     //=====================================================================
      35                 :            :     /** is stl-compliant structure for comparing Reference&lt; &lt;iface&gt; &gt; instances
      36                 :            :     */
      37                 :            :     template < class IAFCE >
      38                 :            :     struct OInterfaceCompare
      39                 :            :         :public ::std::binary_function  <   ::com::sun::star::uno::Reference< IAFCE >
      40                 :            :                                         ,   ::com::sun::star::uno::Reference< IAFCE >
      41                 :            :                                         ,   bool
      42                 :            :                                         >
      43                 :            :     {
      44                 :        725 :         bool operator() (const ::com::sun::star::uno::Reference< IAFCE >& lhs, const ::com::sun::star::uno::Reference< IAFCE >& rhs) const
      45                 :            :         {
      46                 :        725 :             return lhs.get() < rhs.get();
      47                 :            :                 // this does not make any sense if you see the semantics of the pointer returned by get:
      48                 :            :                 // It's a pointer to a point in memory where an interface implementation lies.
      49                 :            :                 // But for our purpose (provide a reliable less-operator which can be used with the STL), this is
      50                 :            :                 // sufficient ....
      51                 :            :         }
      52                 :            :     };
      53                 :            : 
      54                 :            :     typedef OInterfaceCompare< ::com::sun::star::beans::XPropertySet >  OPropertySetCompare;
      55                 :            :     typedef OInterfaceCompare< ::com::sun::star::drawing::XDrawPage >   ODrawPageCompare;
      56                 :            : 
      57                 :            : //.........................................................................
      58                 :            : }   // namespace xmloff
      59                 :            : //.........................................................................
      60                 :            : 
      61                 :            : #endif // _XMLOFF_FORMS_IFACECOMPARE_HXX_
      62                 :            : 
      63                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */