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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef INCLUDED_BASEBMP_ACCESSOR_HXX
#define INCLUDED_BASEBMP_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_ACCESSOR_HXX */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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