Use SvXMLUnitConverter's base64 encoder
SVGActionWriter uses FastString class to encode an image to a base64 string. But there are several more generic encoders. We can use one of them.
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69a3a12a54
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2 changed files with 14 additions and 158 deletions
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@ -68,19 +68,6 @@ static const char aXMLAttrHeight[] = "height";
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static const char aXMLAttrPoints[] = "points";
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static const char aXMLAttrXLinkHRef[] = "xlink:href";
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static const sal_Unicode pBase64[] =
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{
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//0 1 2 3 4 5 6 7
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'A','B','C','D','E','F','G','H', // 0
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'I','J','K','L','M','N','O','P', // 1
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'Q','R','S','T','U','V','W','X', // 2
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'Y','Z','a','b','c','d','e','f', // 3
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'g','h','i','j','k','l','m','n', // 4
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'o','p','q','r','s','t','u','v', // 5
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'w','x','y','z','0','1','2','3', // 6
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'4','5','6','7','8','9','+','/' // 7
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};
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// --------------
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// - FastString -
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// --------------
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@ -98,64 +85,6 @@ FastString::FastString( sal_uInt32 nInitLen, sal_uInt32 nIncrement ) :
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// -----------------------------------------------------------------------------
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FastString::FastString( sal_Char* pBufferForBase64Encoding, sal_uInt32 nBufLen ) :
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mnBufInc( 2048 ),
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mnPartPos( 0 )
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{
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DBG_ASSERT( pBufferForBase64Encoding && nBufLen, "invalid arguments" );
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const sal_uInt32 nQuadCount = nBufLen / 3;
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const sal_uInt32 nRest = nBufLen % 3;
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if( nQuadCount || nRest )
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{
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mnBufLen = mnCurLen = ( ( nQuadCount + ( nRest ? 1 : 0 ) ) << 2 );
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mpBuffer = new sal_Unicode[ mnBufLen * sizeof( sal_Unicode ) ];
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sal_Char* pTmpSrc = pBufferForBase64Encoding;
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sal_Unicode* pTmpDst = mpBuffer;
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for( sal_uInt32 i = 0; i < nQuadCount; i++ )
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{
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const sal_Int32 nA = *pTmpSrc++;
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const sal_Int32 nB = *pTmpSrc++;
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const sal_Int32 nC = *pTmpSrc++;
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*pTmpDst++ = pBase64[ ( nA >> 2 ) & 0x3f ];
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*pTmpDst++ = pBase64[ ( ( nA << 4 ) & 0x30 ) + ( ( nB >> 4 ) & 0xf ) ];
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*pTmpDst++ = pBase64[ ( ( nB << 2 ) & 0x3c ) + ( ( nC >> 6 ) & 0x3 ) ];
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*pTmpDst++ = pBase64[ nC & 0x3f ];
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}
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if( 1 == nRest )
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{
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const sal_Int32 nA = *pTmpSrc;
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*pTmpDst++ = pBase64[ ( nA >> 2 ) & 0x3f ];
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*pTmpDst++ = pBase64[ ( nA << 4 ) & 0x30 ];
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*pTmpDst++ = '=';
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*pTmpDst = '=';
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}
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else if( 2 == nRest )
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{
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const sal_Int32 nA = *pTmpSrc++;
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const sal_Int32 nB = *pTmpSrc;
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*pTmpDst++ = pBase64[ ( nA >> 2 ) & 0x3f ];
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*pTmpDst++ = pBase64[ ( ( nA << 4 ) & 0x30 ) + ( ( nB >> 4 ) & 0xf ) ];
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*pTmpDst++ = pBase64[ ( nB << 2 ) & 0x3c ];
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*pTmpDst = '=';
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}
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}
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else
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{
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mpBuffer = new sal_Unicode[ ( mnBufLen = 1 ) * sizeof( sal_Unicode ) ];
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mnCurLen = 0;
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}
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}
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// -----------------------------------------------------------------------------
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FastString::~FastString()
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{
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delete[] mpBuffer;
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@ -198,39 +127,6 @@ const NMSP_RTL::OUString& FastString::GetString() const
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return maString;
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}
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// -----------------------------------------------------------------------------
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sal_Bool FastString::GetFirstPartString( const sal_uInt32 nPartLen, NMSP_RTL::OUString& rPartString )
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{
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const sal_uInt32 nLength = Min( mnCurLen, nPartLen );
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mnPartPos = 0;
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if( nLength )
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{
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rPartString = NMSP_RTL::OUString( mpBuffer, nLength );
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mnPartPos = nLength;
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}
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return( rPartString.getLength() > 0 );
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}
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// -----------------------------------------------------------------------------
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sal_Bool FastString::GetNextPartString( const sal_uInt32 nPartLen, NMSP_RTL::OUString& rPartString )
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{
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if( mnPartPos < mnCurLen )
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{
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const sal_uInt32 nLength = Min( mnCurLen - mnPartPos, nPartLen );
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rPartString = NMSP_RTL::OUString( mpBuffer + mnPartPos, nLength );
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mnPartPos += nLength;
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}
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else
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rPartString = NMSP_RTL::OUString();
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return( rPartString.getLength() > 0 );
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}
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// ----------------------
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// - SVGAttributeWriter -
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// ----------------------
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@ -1106,59 +1002,21 @@ void SVGActionWriter::ImplWriteBmp( const BitmapEx& rBmpEx,
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if( GraphicConverter::Export( aOStm, rBmpEx, CVT_PNG ) == ERRCODE_NONE )
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{
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const Point aPt( ImplMap( rPt ) );
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const Size aSz( ImplMap( rSz ) );
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FastString aImageData( (sal_Char*) aOStm.GetData(), aOStm.Tell() );
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REF( NMSP_SAX::XExtendedDocumentHandler ) xExtDocHandler( mrExport.GetDocHandler(), NMSP_UNO::UNO_QUERY );
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const Point aPt( ImplMap( rPt ) );
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const Size aSz( ImplMap( rSz ) );
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Sequence< sal_Int8 > aSeq( (sal_Int8*) aOStm.GetData(), aOStm.Tell() );
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NMSP_RTL::OUStringBuffer aBuffer;
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aBuffer.appendAscii( "data:image/png;base64," );
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SvXMLUnitConverter::encodeBase64( aBuffer, aSeq );
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mrExport.AddAttribute( XML_NAMESPACE_NONE, aXMLAttrX, GetValueString( aPt.X() ) );
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mrExport.AddAttribute( XML_NAMESPACE_NONE, aXMLAttrY, GetValueString( aPt.Y() ) );
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mrExport.AddAttribute( XML_NAMESPACE_NONE, aXMLAttrWidth, GetValueString( aSz.Width() ) );
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mrExport.AddAttribute( XML_NAMESPACE_NONE, aXMLAttrHeight, GetValueString( aSz.Height() ) );
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mrExport.AddAttribute( XML_NAMESPACE_NONE, aXMLAttrXLinkHRef, aBuffer.makeStringAndClear() );
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if( xExtDocHandler.is() )
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{
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static const sal_uInt32 nPartLen = 64;
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const NMSP_RTL::OUString aSpace( ' ' );
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const NMSP_RTL::OUString aLineFeed( NMSP_RTL::OUString::valueOf( (sal_Unicode) 0x0a ) );
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NMSP_RTL::OUString aString;
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NMSP_RTL::OUString aImageString;
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aString = aLineFeed;
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aString += B2UCONST( "<" );
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aString += NMSP_RTL::OUString::createFromAscii( aXMLElemImage );
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aString += aSpace;
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aString += NMSP_RTL::OUString::createFromAscii( aXMLAttrX );
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aString += B2UCONST( "=\"" );
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aString += GetValueString( aPt.X() );
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aString += B2UCONST( "\" " );
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aString += NMSP_RTL::OUString::createFromAscii( aXMLAttrY );
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aString += B2UCONST( "=\"" );
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aString += GetValueString( aPt.Y() );
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aString += B2UCONST( "\" " );
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aString += NMSP_RTL::OUString::createFromAscii( aXMLAttrWidth );
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aString += B2UCONST( "=\"" );
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aString += GetValueString( aSz.Width() );
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aString += B2UCONST( "\" " );
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aString += NMSP_RTL::OUString::createFromAscii( aXMLAttrHeight );
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aString += B2UCONST( "=\"" );
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aString += GetValueString( aSz.Height() );
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aString += B2UCONST( "\" " );
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aString += NMSP_RTL::OUString::createFromAscii( aXMLAttrXLinkHRef );
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aString += B2UCONST( "=\"data:image/png;base64," );
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if( aImageData.GetFirstPartString( nPartLen, aImageString ) )
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{
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xExtDocHandler->unknown( aString += aImageString );
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while( aImageData.GetNextPartString( nPartLen, aImageString ) )
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{
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xExtDocHandler->unknown( aLineFeed );
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xExtDocHandler->unknown( aImageString );
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}
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}
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xExtDocHandler->unknown( B2UCONST( "\"/>" ) );
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SvXMLElementExport aElem( mrExport, XML_NAMESPACE_NONE, aXMLElemImage, TRUE, TRUE );
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}
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}
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}
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@ -44,6 +44,7 @@
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#include <vcl/cvtgrf.hxx>
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#include <xmloff/xmlexp.hxx>
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#include <xmloff/nmspmap.hxx>
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#include <xmloff/xmluconv.hxx>
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#include <com/sun/star/uno/Reference.h>
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#include <com/sun/star/uno/RuntimeException.hpp>
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@ -102,14 +103,11 @@ private:
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public:
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FastString( sal_uInt32 nInitLen = 2048, sal_uInt32 nIncrement = 2048 );
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FastString( sal_Char* pBufferForBase64Encoding, sal_uInt32 nBufLen );
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~FastString();
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FastString& operator+=( const ::rtl::OUString& rStr );
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const ::rtl::OUString& GetString() const;
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sal_Bool GetFirstPartString( const sal_uInt32 nPartLen, ::rtl::OUString& rPartString );
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sal_Bool GetNextPartString( const sal_uInt32 nPartLen, ::rtl::OUString& rPartString );
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sal_uInt32 GetLength() const { return mnCurLen; }
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void Clear() { mnCurLen = 0, maString = ::rtl::OUString(); }
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