36703975a0
Change-Id: I68bb665798edf464020c8c3a6f7d9c9f5e85869e Reviewed-on: https://gerrit.libreoffice.org/c/core/+/167379 Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk> Tested-by: Jenkins
238 lines
7 KiB
C++
238 lines
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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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <cppuhelper/implbase.hxx>
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#include <cppuhelper/supportsservice.hxx>
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#include <rtl/textenc.h>
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#include <rtl/tencinfo.h>
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#include <com/sun/star/io/IOException.hpp>
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#include <com/sun/star/io/XTextOutputStream2.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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namespace com::sun::star::uno { class XComponentContext; }
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using namespace ::cppu;
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace ::com::sun::star::io;
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// Implementation XTextOutputStream
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namespace {
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class OTextOutputStream : public WeakImplHelper< XTextOutputStream2, XServiceInfo >
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{
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Reference< XOutputStream > mxStream;
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// Encoding
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bool mbEncodingInitialized;
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rtl_UnicodeToTextConverter mConvUnicode2Text;
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rtl_UnicodeToTextContext mContextUnicode2Text;
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Sequence<sal_Int8> implConvert( const OUString& rSource );
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/// @throws IOException
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void checkOutputStream() const;
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public:
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OTextOutputStream();
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virtual ~OTextOutputStream() override;
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// Methods XTextOutputStream
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virtual void SAL_CALL writeString( const OUString& aString ) override;
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virtual void SAL_CALL setEncoding( const OUString& Encoding ) override;
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// Methods XOutputStream
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virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData ) override;
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virtual void SAL_CALL flush( ) override;
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virtual void SAL_CALL closeOutput( ) override;
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// Methods XActiveDataSource
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virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream ) override;
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virtual Reference< XOutputStream > SAL_CALL getOutputStream( ) override;
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// Methods XServiceInfo
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virtual OUString SAL_CALL getImplementationName() override;
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virtual Sequence< OUString > SAL_CALL getSupportedServiceNames() override;
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virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) override;
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};
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}
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OTextOutputStream::OTextOutputStream()
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: mbEncodingInitialized(false)
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, mConvUnicode2Text(nullptr)
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, mContextUnicode2Text(nullptr)
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{
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}
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OTextOutputStream::~OTextOutputStream()
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{
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if( mbEncodingInitialized )
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{
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rtl_destroyUnicodeToTextContext( mConvUnicode2Text, mContextUnicode2Text );
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rtl_destroyUnicodeToTextConverter( mConvUnicode2Text );
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}
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}
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Sequence<sal_Int8> OTextOutputStream::implConvert( const OUString& rSource )
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{
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const sal_Unicode *puSource = rSource.getStr();
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sal_Int32 nSourceSize = rSource.getLength();
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sal_Size nTargetCount = 0;
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sal_Size nSourceCount = 0;
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sal_uInt32 uiInfo;
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sal_Size nSrcCvtChars;
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// take nSourceSize * 3 as preference
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// this is an upper boundary for converting to utf8,
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// which most often used as the target.
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sal_Int32 nSeqSize = nSourceSize * 3;
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Sequence<sal_Int8> seqText( nSeqSize );
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char *pTarget = reinterpret_cast<char *>(seqText.getArray());
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while( true )
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{
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nTargetCount += rtl_convertUnicodeToText(
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mConvUnicode2Text,
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mContextUnicode2Text,
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&( puSource[nSourceCount] ),
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nSourceSize - nSourceCount ,
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&( pTarget[nTargetCount] ),
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nSeqSize - nTargetCount,
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RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT |
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RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT ,
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&uiInfo,
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&nSrcCvtChars);
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nSourceCount += nSrcCvtChars;
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if( uiInfo & RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL )
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{
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nSeqSize *= 2;
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seqText.realloc( nSeqSize ); // double array size
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pTarget = reinterpret_cast<char*>(seqText.getArray());
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continue;
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}
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break;
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}
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// reduce the size of the buffer (fast, no copy necessary)
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seqText.realloc( nTargetCount );
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return seqText;
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}
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// XTextOutputStream
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void OTextOutputStream::writeString( const OUString& aString )
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{
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checkOutputStream();
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if( !mbEncodingInitialized )
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{
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setEncoding( u"utf8"_ustr );
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}
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if( !mbEncodingInitialized )
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return;
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Sequence<sal_Int8> aByteSeq = implConvert( aString );
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mxStream->writeBytes( aByteSeq );
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}
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void OTextOutputStream::setEncoding( const OUString& Encoding )
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{
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OString aOEncodingStr = OUStringToOString( Encoding, RTL_TEXTENCODING_ASCII_US );
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rtl_TextEncoding encoding = rtl_getTextEncodingFromMimeCharset( aOEncodingStr.getStr() );
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if( RTL_TEXTENCODING_DONTKNOW == encoding )
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return;
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mbEncodingInitialized = true;
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mConvUnicode2Text = rtl_createUnicodeToTextConverter( encoding );
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mContextUnicode2Text = rtl_createUnicodeToTextContext( mConvUnicode2Text );
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}
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// XOutputStream
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void OTextOutputStream::writeBytes( const Sequence< sal_Int8 >& aData )
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{
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checkOutputStream();
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mxStream->writeBytes( aData );
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}
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void OTextOutputStream::flush( )
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{
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checkOutputStream();
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mxStream->flush();
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}
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void OTextOutputStream::closeOutput( )
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{
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checkOutputStream();
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mxStream->closeOutput();
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}
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void OTextOutputStream::checkOutputStream() const
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{
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if (! mxStream.is() )
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throw IOException(u"output stream is not initialized, you have to use setOutputStream first"_ustr);
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}
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// XActiveDataSource
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void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
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{
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mxStream = aStream;
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}
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Reference< XOutputStream > OTextOutputStream::getOutputStream()
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{
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return mxStream;
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}
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OUString OTextOutputStream::getImplementationName()
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{
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return u"com.sun.star.comp.io.TextOutputStream"_ustr;
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}
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sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName)
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{
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return cppu::supportsService(this, ServiceName);
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}
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Sequence< OUString > OTextOutputStream::getSupportedServiceNames()
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{
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return { u"com.sun.star.io.TextOutputStream"_ustr };
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}
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extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
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io_OTextOutputStream_get_implementation(
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css::uno::XComponentContext* , css::uno::Sequence<css::uno::Any> const&)
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{
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return cppu::acquire(new OTextOutputStream());
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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