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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 COMPHELPER_MAKESEQUENCE_HXX_INCLUDED
      21                 :            : #define COMPHELPER_MAKESEQUENCE_HXX_INCLUDED
      22                 :            : 
      23                 :            : #include "com/sun/star/uno/Sequence.hxx"
      24                 :            : #include "boost/preprocessor/cat.hpp"
      25                 :            : #include "boost/preprocessor/repetition.hpp"
      26                 :            : #include "boost/preprocessor/arithmetic/add.hpp"
      27                 :            : 
      28                 :            : namespace comphelper {
      29                 :            : 
      30                 :            : /** Creates a uno::Sequence out of one parameter.
      31                 :            : */
      32                 :            : template <typename T>
      33                 :        124 : inline ::com::sun::star::uno::Sequence<T> makeSequence( T const& element )
      34                 :            : {
      35                 :        124 :     return ::com::sun::star::uno::Sequence<T>( &element, 1 );
      36                 :            : }
      37                 :            : 
      38                 :            : #define COMPHELPER_MAKESEQUENCE_assign(z_, n_, unused_) \
      39                 :            :     p[n_] = BOOST_PP_CAT(element, n_);
      40                 :            : 
      41                 :            : /** The following preprocessor repetitions generate functions like
      42                 :            : 
      43                 :            :     <pre>
      44                 :            :         template <typename T>
      45                 :            :         inline ::com::sun::star::uno::Sequence<T> makeSequence(
      46                 :            :             T const& element0, T const& element1, ... );
      47                 :            :     </pre>
      48                 :            : 
      49                 :            :     which make a sequence out of the passed elements.
      50                 :            : 
      51                 :            :     The maximum number of elements can be set by defining
      52                 :            :     COMPHELPER_MAKESEQUENCE_MAX_ARGS; its default is 12.
      53                 :            : */
      54                 :            : #define COMPHELPER_MAKESEQUENCE_make(z_, n_, unused_) \
      55                 :            : template <typename T> \
      56                 :            : inline ::com::sun::star::uno::Sequence<T> makeSequence( \
      57                 :            :     BOOST_PP_ENUM_PARAMS(n_, T const& element) ) \
      58                 :            : { \
      59                 :            :     ::com::sun::star::uno::Sequence<T> seq( n_ ); \
      60                 :            :     T * p = seq.getArray(); \
      61                 :            :     BOOST_PP_REPEAT(n_, COMPHELPER_MAKESEQUENCE_assign, ~) \
      62                 :            :     return seq; \
      63                 :            : }
      64                 :            : 
      65                 :            : #ifndef COMPHELPER_MAKESEQUENCE_MAX_ARGS
      66                 :            : #define COMPHELPER_MAKESEQUENCE_MAX_ARGS 12
      67                 :            : #endif
      68                 :            : 
      69                 :            : BOOST_PP_REPEAT_FROM_TO(2, BOOST_PP_ADD(COMPHELPER_MAKESEQUENCE_MAX_ARGS, 1),
      70         [ +  - ]:         16 :                         COMPHELPER_MAKESEQUENCE_make, ~)
      71                 :            : 
      72                 :            : #undef COMPHELPER_MAKESEQUENCE_MAX_ARGS
      73                 :            : #undef COMPHELPER_MAKESEQUENCE_make
      74                 :            : #undef COMPHELPER_MAKESEQUENCE_assign
      75                 :            : 
      76                 :            : } // namespace comphelper
      77                 :            : 
      78                 :            : #endif //  ! defined(COMPHELPER_MAKESEQUENCE_HXX_INCLUDED)
      79                 :            : 
      80                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */