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Diffstat (limited to 'basebmp/inc/accessor.hxx')
-rw-r--r-- | basebmp/inc/accessor.hxx | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/basebmp/inc/accessor.hxx b/basebmp/inc/accessor.hxx new file mode 100644 index 000000000000..828d8feafdc7 --- /dev/null +++ b/basebmp/inc/accessor.hxx @@ -0,0 +1,113 @@ +/* -*- 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 INCLUDED_BASEBMP_INC_ACCESSOR_HXX +#define INCLUDED_BASEBMP_INC_ACCESSOR_HXX + +#include <vigra/numerictraits.hxx> + +namespace basebmp +{ + +/** Standard accessor type + + Accesses the iterator values the standard way (i.e. via + *operator()/operator[]) + */ +template<typename ValueType> class StandardAccessor +{ +public: + typedef ValueType value_type; + + + + template< class Iterator > + value_type operator()(Iterator const& i) const + { + return *i; + } + + template< class Iterator, class Difference > + value_type operator()(Iterator const& i, Difference const& diff) const + { + return i[diff]; + } + + + + template< typename V, class Iterator > + void set(V const& value, Iterator const& i) const + { + *i = vigra::detail::RequiresExplicitCast<value_type>::cast(value); + } + + template< typename V, class Iterator, class Difference > + void set(V const& value, Iterator const& i, Difference const& diff) const + { + i[diff] = vigra::detail::RequiresExplicitCast<value_type>::cast(value); + } +}; + + + +/** Non-standard accessor type + + Uses getter/setter methods at the given iterator type, to access + the underlying values. + */ +template<typename ValueType> class NonStandardAccessor +{ +public: + typedef ValueType value_type; + + + + template< class Iterator > + value_type operator()(Iterator const& i) const + { + return i.get(); + } + + template< class Iterator, class Difference > + value_type operator()(Iterator const& i, Difference const& diff) const + { + return i.get(diff); + } + + + + template< typename V, class Iterator > + void set(V const& value, Iterator const& i) const + { + i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value) ); + } + + template< typename V, class Iterator, class Difference > + void set(V const& value, Iterator const& i, Difference const& diff) const + { + i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value), + diff ); + } +}; + +} // namespace basebmp + +#endif /* INCLUDED_BASEBMP_INC_ACCESSOR_HXX */ + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |