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+/* -*- 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_SDEXT_SOURCE_PDFIMPORT_TREE_STYLE_HXX
+#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_TREE_STYLE_HXX
+
+#include <pdfihelper.hxx>
+#include <numeric>
+#include <string_view>
+#include <unordered_map>
+#include <vector>
+#include <rtl/ustring.hxx>
+#include <rtl/string.hxx>
+#include <treevisiting.hxx>
+
+namespace pdfi
+{
+ struct Element;
+ struct EmitContext;
+
+ class StyleContainer
+ {
+ public:
+ struct Style
+ {
+ OString Name;
+ PropertyMap Properties;
+ OUString Contents;
+ Element* ContainedElement;
+ std::vector< Style* > SubStyles;
+
+ Style( const OString& rName, PropertyMap&& rProps ) :
+ Name( rName ),
+ Properties( std::move(rProps) ),
+ ContainedElement( nullptr )
+ {}
+ };
+
+ private:
+ struct HashedStyle
+ {
+ OString Name;
+ PropertyMap Properties;
+ OUString Contents;
+ Element* ContainedElement;
+ std::vector<sal_Int32> SubStyles;
+
+ bool IsSubStyle;
+
+ HashedStyle() : ContainedElement( nullptr ), IsSubStyle( true ) {}
+
+ size_t hashCode() const
+ {
+ size_t nRet = std::accumulate(Properties.begin(), Properties.end(), size_t(Name.hashCode()),
+ [](const size_t& sum, const PropertyMap::value_type& rEntry) {
+ return sum ^ size_t(rEntry.first.hashCode()) ^ size_t(rEntry.second.hashCode());
+ });
+ nRet ^= size_t(Contents.hashCode());
+ nRet ^= reinterpret_cast<size_t>(ContainedElement);
+ for( size_t n = 0; n < SubStyles.size(); ++n )
+ nRet ^= size_t(SubStyles[n]);
+ return nRet;
+ }
+
+ bool operator==(const HashedStyle& rRight) const
+ {
+ if( Name != rRight.Name ||
+ Properties != rRight.Properties ||
+ Contents != rRight.Contents ||
+ ContainedElement != rRight.ContainedElement ||
+ SubStyles.size() != rRight.SubStyles.size()
+ )
+ return false;
+ for( size_t n = 0; n < SubStyles.size(); ++n )
+ {
+ if( SubStyles[n] != rRight.SubStyles[n] )
+ return false;
+ }
+ return true;
+ }
+ };
+
+ struct RefCountedHashedStyle {
+ HashedStyle style;
+ sal_Int32 RefCount = 0;
+ };
+
+ struct StyleHash;
+ friend struct StyleHash;
+ struct StyleHash
+ {
+ size_t operator()( const StyleContainer::HashedStyle& rStyle ) const
+ {
+ return rStyle.hashCode();
+ }
+ };
+
+ struct StyleIdNameSort;
+ friend struct StyleIdNameSort;
+ struct StyleIdNameSort
+ {
+ const std::unordered_map< sal_Int32, RefCountedHashedStyle >* m_pMap;
+
+ explicit StyleIdNameSort( const std::unordered_map< sal_Int32, RefCountedHashedStyle >* pMap ) :
+ m_pMap(pMap)
+ {}
+ bool operator()( sal_Int32 nLeft, sal_Int32 nRight )
+ {
+ const std::unordered_map< sal_Int32, RefCountedHashedStyle >::const_iterator left_it =
+ m_pMap->find( nLeft );
+ const std::unordered_map< sal_Int32, RefCountedHashedStyle >::const_iterator right_it =
+ m_pMap->find( nRight );
+ if( left_it == m_pMap->end() )
+ return false;
+ else if( right_it == m_pMap->end() )
+ return true;
+ else
+ return left_it->second.style.Name < right_it->second.style.Name;
+ }
+ };
+
+ sal_Int32 m_nNextId;
+ std::unordered_map< sal_Int32, RefCountedHashedStyle > m_aIdToStyle;
+ std::unordered_map< HashedStyle, sal_Int32, StyleHash > m_aStyleToId;
+
+ void impl_emitStyle( sal_Int32 nStyleId,
+ EmitContext& rContext,
+ ElementTreeVisitor& rContainedElemVisitor );
+
+ public:
+ StyleContainer();
+
+ void emit( EmitContext& rContext,
+ ElementTreeVisitor& rContainedElemVisitor );
+
+ sal_Int32 impl_getStyleId( const Style& rStyle, bool bSubStyle );
+ sal_Int32 getStyleId( const Style& rStyle )
+ { return impl_getStyleId( rStyle, false ); }
+ sal_Int32 getStandardStyleId( std::string_view rFamily );
+
+ // returns NULL for an invalid style id
+ const PropertyMap* getProperties( sal_Int32 nStyleId ) const;
+ sal_Int32 setProperties( sal_Int32 nStyleId, PropertyMap&& rNewProps );
+ OUString getStyleName( sal_Int32 nStyle ) const;
+ };
+}
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */