b9337e22ce
see https://gerrit.libreoffice.org/#/c/3367/ and Change-Id: I00c96fa77d04b33a6f8c8cd3490dfcd9bdc9e84a for details Change-Id: I199a75bc4042af20817265d5ef85b1134a96ff5a
113 lines
3.3 KiB
C++
113 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_BASEBMP_ACCESSOR_HXX
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#define INCLUDED_BASEBMP_ACCESSOR_HXX
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#include <vigra/numerictraits.hxx>
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namespace basebmp
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{
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/** Standard accessor type
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Accesses the iterator values the standard way (i.e. via
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*operator()/operator[])
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*/
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template<typename ValueType> class StandardAccessor
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{
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public:
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typedef ValueType value_type;
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// -------------------------------------------------------
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template< class Iterator >
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value_type operator()(Iterator const& i) const
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{
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return *i;
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}
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template< class Iterator, class Difference >
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value_type operator()(Iterator const& i, Difference const& diff) const
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{
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return i[diff];
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}
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// -------------------------------------------------------
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template< typename V, class Iterator >
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void set(V const& value, Iterator const& i) const
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{
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*i = vigra::detail::RequiresExplicitCast<value_type>::cast(value);
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}
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template< typename V, class Iterator, class Difference >
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void set(V const& value, Iterator const& i, Difference const& diff) const
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{
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i[diff] = vigra::detail::RequiresExplicitCast<value_type>::cast(value);
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}
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};
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//-----------------------------------------------------------------------------
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/** Non-standard accessor type
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Uses getter/setter methods at the given iterator type, to access
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the underlying values.
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*/
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template<typename ValueType> class NonStandardAccessor
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{
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public:
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typedef ValueType value_type;
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// -------------------------------------------------------
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template< class Iterator >
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value_type operator()(Iterator const& i) const
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{
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return i.get();
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}
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template< class Iterator, class Difference >
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value_type operator()(Iterator const& i, Difference const& diff) const
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{
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return i.get(diff);
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}
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// -------------------------------------------------------
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template< typename V, class Iterator >
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void set(V const& value, Iterator const& i) const
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{
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i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value) );
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}
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template< typename V, class Iterator, class Difference >
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void set(V const& value, Iterator const& i, Difference const& diff) const
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{
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i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value),
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diff );
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}
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};
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} // namespace basebmp
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#endif /* INCLUDED_BASEBMP_ACCESSOR_HXX */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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