LibreOffice Module sdext (master) 1
style.hxx
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1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
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6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 * Licensed to the Apache Software Foundation (ASF) under one or more
12 * contributor license agreements. See the NOTICE file distributed
13 * with this work for additional information regarding copyright
14 * ownership. The ASF licenses this file to you under the Apache
15 * License, Version 2.0 (the "License"); you may not use this file
16 * except in compliance with the License. You may obtain a copy of
17 * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19
20#ifndef INCLUDED_SDEXT_SOURCE_PDFIMPORT_TREE_STYLE_HXX
21#define INCLUDED_SDEXT_SOURCE_PDFIMPORT_TREE_STYLE_HXX
22
23#include <pdfihelper.hxx>
24#include <numeric>
25#include <string_view>
26#include <unordered_map>
27#include <vector>
28#include <rtl/ustring.hxx>
29#include <rtl/string.hxx>
30#include <treevisiting.hxx>
31
32namespace pdfi
33{
34 struct Element;
35 struct EmitContext;
36
38 {
39 public:
40 struct Style
41 {
42 OString Name;
44 OUString Contents;
46 std::vector< Style* > SubStyles;
47
48 Style( const OString& rName, PropertyMap&& rProps ) :
49 Name( rName ),
50 Properties( std::move(rProps) ),
51 ContainedElement( nullptr )
52 {}
53 };
54
55 private:
57 {
58 OString Name;
60 OUString Contents;
62 std::vector<sal_Int32> SubStyles;
63
65
66 HashedStyle() : ContainedElement( nullptr ), IsSubStyle( true ) {}
67
68 size_t hashCode() const
69 {
70 size_t nRet = std::accumulate(Properties.begin(), Properties.end(), size_t(Name.hashCode()),
71 [](const size_t& sum, const PropertyMap::value_type& rEntry) {
72 return sum ^ size_t(rEntry.first.hashCode()) ^ size_t(rEntry.second.hashCode());
73 });
74 nRet ^= size_t(Contents.hashCode());
75 nRet ^= reinterpret_cast<size_t>(ContainedElement);
76 for( size_t n = 0; n < SubStyles.size(); ++n )
77 nRet ^= size_t(SubStyles[n]);
78 return nRet;
79 }
80
81 bool operator==(const HashedStyle& rRight) const
82 {
83 if( Name != rRight.Name ||
84 Properties != rRight.Properties ||
85 Contents != rRight.Contents ||
87 SubStyles.size() != rRight.SubStyles.size()
88 )
89 return false;
90 for( size_t n = 0; n < SubStyles.size(); ++n )
91 {
92 if( SubStyles[n] != rRight.SubStyles[n] )
93 return false;
94 }
95 return true;
96 }
97 };
98
101 sal_Int32 RefCount = 0;
102 };
103
104 struct StyleHash;
105 friend struct StyleHash;
107 {
108 size_t operator()( const StyleContainer::HashedStyle& rStyle ) const
109 {
110 return rStyle.hashCode();
111 }
112 };
113
114 struct StyleIdNameSort;
115 friend struct StyleIdNameSort;
117 {
118 const std::unordered_map< sal_Int32, RefCountedHashedStyle >* m_pMap;
119
120 explicit StyleIdNameSort( const std::unordered_map< sal_Int32, RefCountedHashedStyle >* pMap ) :
121 m_pMap(pMap)
122 {}
123 bool operator()( sal_Int32 nLeft, sal_Int32 nRight )
124 {
125 const std::unordered_map< sal_Int32, RefCountedHashedStyle >::const_iterator left_it =
126 m_pMap->find( nLeft );
127 const std::unordered_map< sal_Int32, RefCountedHashedStyle >::const_iterator right_it =
128 m_pMap->find( nRight );
129 if( left_it == m_pMap->end() )
130 return false;
131 else if( right_it == m_pMap->end() )
132 return true;
133 else
134 return left_it->second.style.Name < right_it->second.style.Name;
135 }
136 };
137
138 sal_Int32 m_nNextId;
139 std::unordered_map< sal_Int32, RefCountedHashedStyle > m_aIdToStyle;
140 std::unordered_map< HashedStyle, sal_Int32, StyleHash > m_aStyleToId;
141
142 void impl_emitStyle( sal_Int32 nStyleId,
143 EmitContext& rContext,
144 ElementTreeVisitor& rContainedElemVisitor );
145
146 public:
148
149 void emit( EmitContext& rContext,
150 ElementTreeVisitor& rContainedElemVisitor );
151
152 sal_Int32 impl_getStyleId( const Style& rStyle, bool bSubStyle );
153 sal_Int32 getStyleId( const Style& rStyle )
154 { return impl_getStyleId( rStyle, false ); }
155 sal_Int32 getStandardStyleId( std::string_view rFamily );
156
157 // returns NULL for an invalid style id
158 const PropertyMap* getProperties( sal_Int32 nStyleId ) const;
159 sal_Int32 setProperties( sal_Int32 nStyleId, PropertyMap&& rNewProps );
160 OUString getStyleName( sal_Int32 nStyle ) const;
161 };
162}
163
164#endif
165
166/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
void emit(EmitContext &rContext, ElementTreeVisitor &rContainedElemVisitor)
Definition: style.cxx:209
friend struct StyleIdNameSort
Definition: style.hxx:114
sal_Int32 setProperties(sal_Int32 nStyleId, PropertyMap &&rNewProps)
Definition: style.cxx:93
OUString getStyleName(sal_Int32 nStyle) const
Definition: style.cxx:146
sal_Int32 impl_getStyleId(const Style &rStyle, bool bSubStyle)
Definition: style.cxx:37
const PropertyMap * getProperties(sal_Int32 nStyleId) const
Definition: style.cxx:86
sal_Int32 m_nNextId
Definition: style.hxx:138
sal_Int32 getStandardStyleId(std::string_view rFamily)
Definition: style.cxx:76
std::unordered_map< HashedStyle, sal_Int32, StyleHash > m_aStyleToId
Definition: style.hxx:140
std::unordered_map< sal_Int32, RefCountedHashedStyle > m_aIdToStyle
Definition: style.hxx:139
void impl_emitStyle(sal_Int32 nStyleId, EmitContext &rContext, ElementTreeVisitor &rContainedElemVisitor)
Definition: style.cxx:183
sal_Int32 getStyleId(const Style &rStyle)
Definition: style.hxx:153
sal_Int64 n
std::unordered_map< OUString, OUString > PropertyMap
Definition: pdfihelper.hxx:44
std::unordered_map< OUString, uno::WeakReference< ucb::XContent > > Contents
To be visited by all tree element types.
bool operator==(const HashedStyle &rRight) const
Definition: style.hxx:81
std::vector< sal_Int32 > SubStyles
Definition: style.hxx:62
size_t operator()(const StyleContainer::HashedStyle &rStyle) const
Definition: style.hxx:108
StyleIdNameSort(const std::unordered_map< sal_Int32, RefCountedHashedStyle > *pMap)
Definition: style.hxx:120
bool operator()(sal_Int32 nLeft, sal_Int32 nRight)
Definition: style.hxx:123
const std::unordered_map< sal_Int32, RefCountedHashedStyle > * m_pMap
Definition: style.hxx:118
Style(const OString &rName, PropertyMap &&rProps)
Definition: style.hxx:48
std::vector< Style * > SubStyles
Definition: style.hxx:46
Element * ContainedElement
Definition: style.hxx:45
PropertyMap Properties
Definition: style.hxx:43