/* -*- 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 . */ #include #include #include #include #include #include #include #include using namespace ::com::sun::star; namespace comphelper { const sal_Int32 nConstBufferSize = 32000; static void copyInputToOutput_Impl( const uno::Reference< io::XInputStream >& xIn, const uno::Reference< io::XOutputStream >& xOut ) { sal_Int32 nRead; uno::Sequence< sal_Int8 > aSequence( nConstBufferSize ); do { nRead = xIn->readBytes( aSequence, nConstBufferSize ); if ( nRead < nConstBufferSize ) { uno::Sequence< sal_Int8 > aTempBuf( aSequence.getConstArray(), nRead ); xOut->writeBytes( aTempBuf ); } else xOut->writeBytes( aSequence ); } while ( nRead == nConstBufferSize ); } OSeekableInputWrapper::OSeekableInputWrapper( uno::Reference< io::XInputStream > xInStream, uno::Reference< uno::XComponentContext > xContext ) : m_xContext(std::move( xContext )) , m_xOriginalStream(std::move( xInStream )) { if ( !m_xContext.is() ) throw lang::IllegalArgumentException(u"no component context"_ustr, *this, 1); } OSeekableInputWrapper::~OSeekableInputWrapper() { } uno::Reference< io::XInputStream > OSeekableInputWrapper::CheckSeekableCanWrap( const uno::Reference< io::XInputStream >& xInStream, const uno::Reference< uno::XComponentContext >& rxContext ) { // check that the stream is seekable and just wrap it if it is not uno::Reference< io::XSeekable > xSeek( xInStream, uno::UNO_QUERY ); if ( xSeek.is() ) return xInStream; return new OSeekableInputWrapper(xInStream, rxContext); } void OSeekableInputWrapper::PrepareCopy_Impl() { if ( !m_xCopyInput.is() ) { if ( !m_xContext.is() ) throw uno::RuntimeException(u"no component context"_ustr); uno::Reference< io::XOutputStream > xTempOut( io::TempFile::create(m_xContext), uno::UNO_QUERY_THROW ); copyInputToOutput_Impl( m_xOriginalStream, xTempOut ); xTempOut->closeOutput(); uno::Reference< io::XSeekable > xTempSeek( xTempOut, uno::UNO_QUERY ); if ( xTempSeek.is() ) { xTempSeek->seek( 0 ); m_xCopyInput.set( xTempOut, uno::UNO_QUERY ); if ( m_xCopyInput.is() ) m_xCopySeek = xTempSeek; } } if ( !m_xCopyInput.is() ) throw io::IOException(u"no m_xCopyInput"_ustr); } // XInputStream sal_Int32 SAL_CALL OSeekableInputWrapper::readBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead ) { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); return m_xCopyInput->readBytes( aData, nBytesToRead ); } sal_Int32 SAL_CALL OSeekableInputWrapper::readSomeBytes( uno::Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead ) { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); return m_xCopyInput->readSomeBytes( aData, nMaxBytesToRead ); } void SAL_CALL OSeekableInputWrapper::skipBytes( sal_Int32 nBytesToSkip ) { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); m_xCopyInput->skipBytes( nBytesToSkip ); } sal_Int32 SAL_CALL OSeekableInputWrapper::available() { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); return m_xCopyInput->available(); } void SAL_CALL OSeekableInputWrapper::closeInput() { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); m_xOriginalStream->closeInput(); m_xOriginalStream.clear(); if ( m_xCopyInput.is() ) { m_xCopyInput->closeInput(); m_xCopyInput.clear(); } m_xCopySeek.clear(); } // XSeekable void SAL_CALL OSeekableInputWrapper::seek( sal_Int64 location ) { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); m_xCopySeek->seek( location ); } sal_Int64 SAL_CALL OSeekableInputWrapper::getPosition() { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); return m_xCopySeek->getPosition(); } sal_Int64 SAL_CALL OSeekableInputWrapper::getLength() { std::scoped_lock aGuard( m_aMutex ); if ( !m_xOriginalStream.is() ) throw io::NotConnectedException(); PrepareCopy_Impl(); return m_xCopySeek->getLength(); } } // namespace comphelper /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ >distro/lhm/libreoffice-5-2+backports LibreOffice 核心代码仓库文档基金会

path: root/qadevOOo/tests/java/ifc/drawing/_GraphicObjectShapeDescriptor.java

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