/src/libreoffice/oox/source/mathml/imexport.cxx
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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. |
4 | | * |
5 | | * This Source Code Form is subject to the terms of the Mozilla Public |
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 | | |
10 | | #include <oox/mathml/imexport.hxx> |
11 | | |
12 | | #include <oox/mathml/importutils.hxx> |
13 | | #include <oox/core/contexthandler.hxx> |
14 | | #include <oox/token/namespaces.hxx> |
15 | | |
16 | | #include <drawingml/textparagraph.hxx> |
17 | | |
18 | | |
19 | | using namespace ::com::sun::star; |
20 | | |
21 | | namespace oox |
22 | | { |
23 | | |
24 | | FormulaImExportBase::FormulaImExportBase() |
25 | 27.4k | { |
26 | 27.4k | } |
27 | | |
28 | | namespace formulaimport { |
29 | | |
30 | | namespace { |
31 | | |
32 | | class LazyMathBufferingContext : public core::ContextHandler |
33 | | { |
34 | | private: |
35 | | XmlStreamBuilder & m_rBuilder; |
36 | | std::vector<sal_Int32> m_OpenElements; |
37 | | |
38 | | public: |
39 | | LazyMathBufferingContext(core::ContextHandler const& rParent, |
40 | | drawingml::TextParagraph & rPara); |
41 | | |
42 | | // com.sun.star.xml.sax.XFastContextHandler interface --------------------- |
43 | | |
44 | | virtual void SAL_CALL startFastElement(::sal_Int32 Element, const uno::Reference<xml::sax::XFastAttributeList>& xAttribs) override; |
45 | | virtual void SAL_CALL endFastElement(::sal_Int32 Element) override; |
46 | | virtual uno::Reference< xml::sax::XFastContextHandler> SAL_CALL createFastChildContext(::sal_Int32 Element, const uno::Reference<xml::sax::XFastAttributeList >& xAttribs) override; |
47 | | virtual void SAL_CALL characters(const OUString& rChars) override; |
48 | | |
49 | | }; |
50 | | |
51 | | } |
52 | | |
53 | | LazyMathBufferingContext::LazyMathBufferingContext( |
54 | | core::ContextHandler const& rParent, drawingml::TextParagraph & rPara) |
55 | 0 | : core::ContextHandler(rParent) |
56 | 0 | , m_rBuilder(rPara.GetMathXml()) |
57 | 0 | { |
58 | 0 | } |
59 | | |
60 | | void SAL_CALL LazyMathBufferingContext::startFastElement( |
61 | | sal_Int32 const nElement, |
62 | | uno::Reference<xml::sax::XFastAttributeList> const& xAttrs) |
63 | 0 | { |
64 | 0 | if (0 < m_OpenElements.size()) // ignore a14:m |
65 | 0 | { // ignore outer oMathPara |
66 | 0 | if (1 != m_OpenElements.size() || OOX_TOKEN(officeMath, oMathPara) != nElement) |
67 | 0 | { |
68 | 0 | m_rBuilder.appendOpeningTag(nElement, xAttrs); |
69 | 0 | } |
70 | 0 | } |
71 | 0 | m_OpenElements.push_back(nElement); |
72 | 0 | } |
73 | | |
74 | | void SAL_CALL LazyMathBufferingContext::endFastElement(sal_Int32 const nElement) |
75 | 0 | { |
76 | 0 | m_OpenElements.pop_back(); |
77 | 0 | if (0 < m_OpenElements.size()) // ignore a14:m |
78 | 0 | { // ignore outer oMathPara |
79 | 0 | if (1 != m_OpenElements.size() || OOX_TOKEN(officeMath, oMathPara) != nElement) |
80 | 0 | { |
81 | 0 | m_rBuilder.appendClosingTag(nElement); |
82 | 0 | } |
83 | 0 | } |
84 | 0 | } |
85 | | |
86 | | uno::Reference<xml::sax::XFastContextHandler> SAL_CALL |
87 | | LazyMathBufferingContext::createFastChildContext(sal_Int32 const, |
88 | | uno::Reference<xml::sax::XFastAttributeList> const&) |
89 | 0 | { |
90 | 0 | return this; |
91 | 0 | } |
92 | | |
93 | | void SAL_CALL LazyMathBufferingContext::characters(OUString const& rChars) |
94 | 0 | { |
95 | 0 | if (0 < m_OpenElements.size()) // ignore a14:m |
96 | 0 | { |
97 | 0 | if (m_OpenElements.back() == OOX_TOKEN(officeMath, t)) |
98 | 0 | { |
99 | 0 | m_rBuilder.appendCharacters(rChars); |
100 | 0 | } |
101 | 0 | } |
102 | 0 | } |
103 | | |
104 | | } // namespace oox::formulaimport |
105 | | |
106 | | rtl::Reference<core::ContextHandler> CreateLazyMathBufferingContext( |
107 | | core::ContextHandler const& rParent, drawingml::TextParagraph & rPara) |
108 | 0 | { |
109 | 0 | return new formulaimport::LazyMathBufferingContext(rParent, rPara); |
110 | 0 | } |
111 | | |
112 | | } // namespace oox |
113 | | |
114 | | /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |