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Diffstat (limited to 'basebmp/inc/basebmp/paletteimageaccessor.hxx')
-rw-r--r-- | basebmp/inc/basebmp/paletteimageaccessor.hxx | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/basebmp/inc/basebmp/paletteimageaccessor.hxx b/basebmp/inc/basebmp/paletteimageaccessor.hxx deleted file mode 100644 index 6f0164e64af6..000000000000 --- a/basebmp/inc/basebmp/paletteimageaccessor.hxx +++ /dev/null @@ -1,162 +0,0 @@ -/* -*- 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_PALETTEIMAGEACCESSOR_HXX -#define INCLUDED_BASEBMP_PALETTEIMAGEACCESSOR_HXX - -#include <basebmp/colortraits.hxx> -#include <basebmp/accessortraits.hxx> - -#include <vigra/numerictraits.hxx> -#include <vigra/metaprogramming.hxx> - -#include <algorithm> -#include <functional> - -namespace basebmp -{ - -/** Access pixel data via palette indirection - - @tpl Accessor - Raw accessor, to be used to actually access the pixel values - - @tpl ColorType - The color value type to use - e.g. the palette is an array of that - type - */ -template< class Accessor, typename ColorType > class PaletteImageAccessor -{ -public: - typedef typename Accessor::value_type data_type; - typedef ColorType value_type; - -#ifndef BOOST_NO_MEMBER_TEMPLATE_FRIENDS -// making all members public, if no member template friends -private: - template<class A, typename C> friend class PaletteImageAccessor; -#endif - - Accessor maAccessor; - const value_type* mpPalette; - std::size_t mnNumEntries; - -public: - PaletteImageAccessor() : - maAccessor(), - mpPalette(0), - mnNumEntries(0) - {} - - template< class A > explicit - PaletteImageAccessor( PaletteImageAccessor<A,ColorType> const& rSrc ) : - maAccessor( rSrc.maAccessor ), - mpPalette( rSrc.mpPalette ), - mnNumEntries( rSrc.mnNumEntries ) - {} - - PaletteImageAccessor( const value_type* pPalette, - std::size_t numEntries ) : - maAccessor(), - mpPalette(pPalette), - mnNumEntries(numEntries) - {} - - template< class T > PaletteImageAccessor( T accessor, - const value_type* pPalette, - std::size_t numEntries ) : - maAccessor(accessor), - mpPalette(pPalette), - mnNumEntries(numEntries) - {} - - // ------------------------------------------------------- - - Accessor const& getWrappedAccessor() const { return maAccessor; } - Accessor& getWrappedAccessor() { return maAccessor; } - - // ------------------------------------------------------- - - data_type lookup(value_type const& v) const - { - // TODO(P3): use table-based/octree approach here! - const value_type* best_entry; - const value_type* palette_end( mpPalette+mnNumEntries ); - if( (best_entry=std::find( mpPalette, palette_end, v)) != palette_end ) - return best_entry-mpPalette; - - const value_type* curr_entry( mpPalette ); - best_entry = curr_entry; - while( curr_entry != palette_end ) - { - if( ColorTraits<value_type>::distance(*curr_entry, - *best_entry) - > ColorTraits<value_type>::distance(*curr_entry, - v) ) - { - best_entry = curr_entry; - } - - ++curr_entry; - } - - return best_entry-mpPalette; - } - - // ------------------------------------------------------- - - template< class Iterator > - value_type operator()(Iterator const& i) const - { - return mpPalette[ maAccessor(i) ]; - } - - template< class Iterator, class Difference > - value_type operator()(Iterator const& i, Difference const& diff) const - { - return mpPalette[ maAccessor(i,diff) ]; - } - - // ------------------------------------------------------- - - template< typename V, class Iterator > - void set(V const& value, Iterator const& i) const - { - maAccessor.set( - lookup( - vigra::detail::RequiresExplicitCast<value_type>::cast(value) ), - i ); - } - - template< typename V, class Iterator, class Difference > - void set(V const& value, Iterator const& i, Difference const& diff) const - { - maAccessor.set( - lookup( - vigra::detail::RequiresExplicitCast<value_type>::cast(value) ), - i, - diff ); - } -}; - -} // namespace basebmp - -#endif /* INCLUDED_BASEBMP_PALETTEIMAGEACCESSOR_HXX */ - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |