123 lines
3.7 KiB
C++
123 lines
3.7 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 <memory>
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#include <unotools/mediadescriptor.hxx>
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#include <unotools/ucbstreamhelper.hxx>
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#include <document.hxx>
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#include "mathtype.hxx"
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#include <unomodel.hxx>
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using namespace ::com::sun::star;
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/// Invokes the MathType importer via UNO.
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class MathTypeFilter : public cppu::WeakImplHelper
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<
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document::XFilter,
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document::XImporter,
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lang::XServiceInfo
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>
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{
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uno::Reference<lang::XComponent> m_xDstDoc;
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public:
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MathTypeFilter();
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// XFilter
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sal_Bool SAL_CALL filter(const uno::Sequence<beans::PropertyValue>& rDescriptor) override;
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void SAL_CALL cancel() override;
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// XImporter
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void SAL_CALL setTargetDocument(const uno::Reference<lang::XComponent>& xDoc) override;
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// XServiceInfo
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OUString SAL_CALL getImplementationName() override;
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sal_Bool SAL_CALL supportsService(const OUString& rServiceName) override;
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uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override;
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};
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MathTypeFilter::MathTypeFilter() = default;
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sal_Bool MathTypeFilter::filter(const uno::Sequence<beans::PropertyValue>& rDescriptor)
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{
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bool bSuccess = false;
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try
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{
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utl::MediaDescriptor aMediaDesc(rDescriptor);
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aMediaDesc.addInputStream();
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uno::Reference<io::XInputStream> xInputStream;
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aMediaDesc[utl::MediaDescriptor::PROP_INPUTSTREAM()] >>= xInputStream;
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std::unique_ptr<SvStream> pStream(utl::UcbStreamHelper::CreateStream(xInputStream));
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if (pStream)
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{
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if (SotStorage::IsStorageFile(pStream.get()))
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{
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tools::SvRef<SotStorage> aStorage(new SotStorage(pStream.get(), false));
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// Is this a MathType Storage?
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if (aStorage->IsStream("Equation Native"))
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{
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if (auto pModel = dynamic_cast<SmModel*>(m_xDstDoc.get()))
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{
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auto pDocShell = static_cast<SmDocShell*>(pModel->GetObjectShell());
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OUString aText = pDocShell->GetText();
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MathType aEquation(aText);
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bSuccess = aEquation.Parse(aStorage.get());
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if (bSuccess)
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{
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pDocShell->SetText(aText);
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pDocShell->Parse();
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}
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}
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}
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}
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}
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}
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catch (const uno::Exception& rException)
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{
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SAL_WARN("starmath", "Exception caught: " << rException);
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}
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return bSuccess;
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}
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void MathTypeFilter::cancel()
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{
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}
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void MathTypeFilter::setTargetDocument(const uno::Reference< lang::XComponent >& xDoc)
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{
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m_xDstDoc = xDoc;
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}
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OUString MathTypeFilter::getImplementationName()
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{
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return OUString("com.sun.star.comp.Math.MathTypeFilter");
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}
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sal_Bool MathTypeFilter::supportsService(const OUString& rServiceName)
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{
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return cppu::supportsService(this, rServiceName);
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}
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uno::Sequence<OUString> MathTypeFilter::getSupportedServiceNames()
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{
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uno::Sequence<OUString> aRet =
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{
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OUString("com.sun.star.document.ImportFilter")
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};
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return aRet;
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}
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extern "C" SAL_DLLPUBLIC_EXPORT uno::XInterface* SAL_CALL com_sun_star_comp_Math_MathTypeFilter_get_implementation(uno::XComponentContext* /*pCtx*/, uno::Sequence<uno::Any> const& /*rSeq*/)
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{
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return cppu::acquire(new MathTypeFilter);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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