340 lines
11 KiB
C++
340 lines
11 KiB
C++
/*************************************************************************
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: TextOutputStream.cxx,v $
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*
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* $Revision: 1.8 $
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*
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* last change: $Author: rt $ $Date: 2005-09-07 18:26:46 $
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*
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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*
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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************************************************************************/
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#include <osl/mutex.hxx>
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#include <osl/diagnose.h>
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#include <uno/mapping.hxx>
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#include <cppuhelper/factory.hxx>
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#include <cppuhelper/implbase3.hxx>
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#include <cppuhelper/implementationentry.hxx>
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#include <rtl/textenc.h>
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#include <rtl/tencinfo.h>
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#include <rtl/unload.h>
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#include <com/sun/star/io/XTextOutputStream.hpp>
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#include <com/sun/star/io/XActiveDataSource.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#define IMPLEMENTATION_NAME "com.sun.star.comp.io.TextOutputStream"
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#define SERVICE_NAME "com.sun.star.io.TextOutputStream"
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using namespace ::osl;
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using namespace ::rtl;
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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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using namespace ::com::sun::star::registry;
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namespace io_TextOutputStream
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{
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rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
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//===========================================================================
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// Implementation XTextOutputStream
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typedef WeakImplHelper3< XTextOutputStream, XActiveDataSource, XServiceInfo > TextOutputStreamHelper;
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class OCommandEnvironment;
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class OTextOutputStream : public TextOutputStreamHelper
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{
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Reference< XOutputStream > mxStream;
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// Encoding
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OUString mEncoding;
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sal_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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public:
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OTextOutputStream();
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~OTextOutputStream();
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// Methods XTextOutputStream
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virtual void SAL_CALL writeString( const OUString& aString )
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throw(IOException, RuntimeException);
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virtual void SAL_CALL setEncoding( const OUString& Encoding )
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throw(RuntimeException);
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// Methods XOutputStream
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virtual void SAL_CALL writeBytes( const Sequence< sal_Int8 >& aData )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
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virtual void SAL_CALL flush( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
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virtual void SAL_CALL closeOutput( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException);
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// Methods XActiveDataSource
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virtual void SAL_CALL setOutputStream( const Reference< XOutputStream >& aStream )
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throw(RuntimeException);
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virtual Reference< XOutputStream > SAL_CALL getOutputStream( )
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throw(RuntimeException);
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// Methods XServiceInfo
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virtual OUString SAL_CALL getImplementationName() throw();
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virtual Sequence< OUString > SAL_CALL getSupportedServiceNames(void) throw();
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virtual sal_Bool SAL_CALL supportsService(const OUString& ServiceName) throw();
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};
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OTextOutputStream::OTextOutputStream()
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{
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mbEncodingInitialized = false;
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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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sal_Char *pTarget = (sal_Char *) seqText.getArray();
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while( sal_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 = (sal_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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//===========================================================================
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// XTextOutputStream
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void OTextOutputStream::writeString( const OUString& aString )
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throw(IOException, RuntimeException)
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{
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if( !mbEncodingInitialized )
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{
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OUString aUtf8Str( RTL_CONSTASCII_USTRINGPARAM("utf8") );
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setEncoding( aUtf8Str );
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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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throw(RuntimeException)
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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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mEncoding = Encoding;
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}
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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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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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mxStream->writeBytes( aData );
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}
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void OTextOutputStream::flush( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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mxStream->flush();
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}
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void OTextOutputStream::closeOutput( )
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throw(NotConnectedException, BufferSizeExceededException, IOException, RuntimeException)
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{
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mxStream->closeOutput();
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}
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//===========================================================================
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// XActiveDataSource
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void OTextOutputStream::setOutputStream( const Reference< XOutputStream >& aStream )
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throw(RuntimeException)
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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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throw(RuntimeException)
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{
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return mxStream;
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}
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Reference< XInterface > SAL_CALL TextOutputStream_CreateInstance( const Reference< XComponentContext > &)
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{
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return Reference < XInterface >( ( OWeakObject * ) new OTextOutputStream() );
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}
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OUString TextOutputStream_getImplementationName() SAL_THROW( () )
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{
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return OUString( RTL_CONSTASCII_USTRINGPARAM( IMPLEMENTATION_NAME ) );
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}
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Sequence< OUString > TextOutputStream_getSupportedServiceNames()
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{
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static Sequence < OUString > *pNames = 0;
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if( ! pNames )
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{
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MutexGuard guard( Mutex::getGlobalMutex() );
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if( !pNames )
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{
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static Sequence< OUString > seqNames(1);
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seqNames.getArray()[0] = OUString( RTL_CONSTASCII_USTRINGPARAM( SERVICE_NAME ) );
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pNames = &seqNames;
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}
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}
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return *pNames;
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}
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OUString OTextOutputStream::getImplementationName() throw()
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{
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return TextOutputStream_getImplementationName();
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}
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sal_Bool OTextOutputStream::supportsService(const OUString& ServiceName) throw()
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{
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Sequence< OUString > aSNL = getSupportedServiceNames();
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const OUString * pArray = aSNL.getConstArray();
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for( sal_Int32 i = 0; i < aSNL.getLength(); i++ )
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if( pArray[i] == ServiceName )
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return sal_True;
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return sal_False;
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}
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Sequence< OUString > OTextOutputStream::getSupportedServiceNames(void) throw()
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{
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return TextOutputStream_getSupportedServiceNames();
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}
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}
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using namespace io_TextOutputStream;
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static struct ImplementationEntry g_entries[] =
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{
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{
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TextOutputStream_CreateInstance, TextOutputStream_getImplementationName ,
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TextOutputStream_getSupportedServiceNames, createSingleComponentFactory ,
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&g_moduleCount.modCnt , 0
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},
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{ 0, 0, 0, 0, 0, 0 }
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};
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extern "C"
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{
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sal_Bool SAL_CALL component_canUnload( TimeValue *pTime )
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{
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return g_moduleCount.canUnload( &g_moduleCount , pTime );
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}
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//==================================================================================================
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void SAL_CALL component_getImplementationEnvironment(
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const sal_Char ** ppEnvTypeName, uno_Environment ** ppEnv )
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{
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*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
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}
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//==================================================================================================
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sal_Bool SAL_CALL component_writeInfo(
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void * pServiceManager, void * pRegistryKey )
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{
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return component_writeInfoHelper( pServiceManager, pRegistryKey, g_entries );
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}
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//==================================================================================================
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void * SAL_CALL component_getFactory(
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const sal_Char * pImplName, void * pServiceManager, void * pRegistryKey )
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{
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return component_getFactoryHelper( pImplName, pServiceManager, pRegistryKey , g_entries );
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}
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}
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