114 lines
3.3 KiB
C++
114 lines
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <oox/mathml/imexport.hxx>
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#include <oox/mathml/importutils.hxx>
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#include <oox/core/contexthandler.hxx>
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#include <oox/token/namespaces.hxx>
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#include <drawingml/textparagraph.hxx>
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using namespace ::com::sun::star;
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namespace oox
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{
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FormulaImExportBase::FormulaImExportBase()
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{
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}
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namespace formulaimport {
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namespace {
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class LazyMathBufferingContext : public core::ContextHandler
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{
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private:
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XmlStreamBuilder & m_rBuilder;
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std::vector<sal_Int32> m_OpenElements;
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public:
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LazyMathBufferingContext(core::ContextHandler const& rParent,
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drawingml::TextParagraph & rPara);
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// com.sun.star.xml.sax.XFastContextHandler interface ---------------------
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virtual void SAL_CALL startFastElement(::sal_Int32 Element, const uno::Reference<xml::sax::XFastAttributeList>& xAttribs) override;
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virtual void SAL_CALL endFastElement(::sal_Int32 Element) override;
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virtual uno::Reference< xml::sax::XFastContextHandler> SAL_CALL createFastChildContext(::sal_Int32 Element, const uno::Reference<xml::sax::XFastAttributeList >& xAttribs) override;
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virtual void SAL_CALL characters(const OUString& rChars) override;
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};
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}
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LazyMathBufferingContext::LazyMathBufferingContext(
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core::ContextHandler const& rParent, drawingml::TextParagraph & rPara)
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: core::ContextHandler(rParent)
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, m_rBuilder(rPara.GetMathXml())
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{
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}
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void SAL_CALL LazyMathBufferingContext::startFastElement(
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sal_Int32 const nElement,
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uno::Reference<xml::sax::XFastAttributeList> const& xAttrs)
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{
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if (0 < m_OpenElements.size()) // ignore a14:m
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{ // ignore outer oMathPara
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if (1 != m_OpenElements.size() || OOX_TOKEN(officeMath, oMathPara) != nElement)
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{
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m_rBuilder.appendOpeningTag(nElement, xAttrs);
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}
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}
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m_OpenElements.push_back(nElement);
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}
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void SAL_CALL LazyMathBufferingContext::endFastElement(sal_Int32 const nElement)
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{
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m_OpenElements.pop_back();
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if (0 < m_OpenElements.size()) // ignore a14:m
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{ // ignore outer oMathPara
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if (1 != m_OpenElements.size() || OOX_TOKEN(officeMath, oMathPara) != nElement)
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{
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m_rBuilder.appendClosingTag(nElement);
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}
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}
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}
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uno::Reference<xml::sax::XFastContextHandler> SAL_CALL
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LazyMathBufferingContext::createFastChildContext(sal_Int32 const,
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uno::Reference<xml::sax::XFastAttributeList> const&)
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{
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return this;
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}
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void SAL_CALL LazyMathBufferingContext::characters(OUString const& rChars)
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{
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if (0 < m_OpenElements.size()) // ignore a14:m
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{
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if (m_OpenElements.back() == OOX_TOKEN(officeMath, t))
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{
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m_rBuilder.appendCharacters(rChars);
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}
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}
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}
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} // namespace oox::formulaimport
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rtl::Reference<core::ContextHandler> CreateLazyMathBufferingContext(
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core::ContextHandler const& rParent, drawingml::TextParagraph & rPara)
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{
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return new formulaimport::LazyMathBufferingContext(rParent, rPara);
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}
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} // namespace oox
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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