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Diffstat (limited to 'filter/source/svg/svgfontexport.cxx')
| -rw-r--r-- | filter/source/svg/svgfontexport.cxx | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/filter/source/svg/svgfontexport.cxx b/filter/source/svg/svgfontexport.cxx new file mode 100644 index 000000000000..8fa9db03eacf --- /dev/null +++ b/filter/source/svg/svgfontexport.cxx @@ -0,0 +1,258 @@ + /************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_filter.hxx" + + +#include "svgfontexport.hxx" + +static const sal_Int32 nFontEM = 2048; + +// ----------------- +// - SVGFontExport - +// ----------------- + +SVGFontExport::SVGFontExport( SvXMLExport& rExport, const ::std::vector< ObjectRepresentation >& rObjects ) : + mrExport( rExport ), + maObjects( rObjects ), + mnCurFontId( 0 ) +{ +} + +// ----------------------------------------------------------------------------- + +SVGFontExport::~SVGFontExport() +{ +} + +// ----------------------------------------------------------------------------- + +void SVGFontExport::implCollectGlyphs() +{ + VirtualDevice aVDev; + ObjectVector::const_iterator aIter( maObjects.begin() ); + + aVDev.EnableOutput( sal_False ); + + while( aIter != maObjects.end() ) + { + if( (*aIter).HasRepresentation() ) + { + const GDIMetaFile& rMtf = (*aIter).GetRepresentation(); + + aVDev.Push(); + + for( sal_uInt32 i = 0, nCount = rMtf.GetActionCount(); i < nCount; ++i ) + { + ::rtl::OUString aText; + MetaAction* pAction = rMtf.GetAction( i ); + const USHORT nType = pAction->GetType(); + + switch( nType ) + { + case( META_TEXT_ACTION ): + { + const MetaTextAction* pA = (const MetaTextAction*) pAction; + aText = String( pA->GetText(), pA->GetIndex(), pA->GetLen() ); + } + break; + + case( META_TEXTRECT_ACTION ): + { + const MetaTextRectAction* pA = (const MetaTextRectAction*) pAction; + aText = pA->GetText(); + } + break; + + case( META_TEXTARRAY_ACTION ): + { + const MetaTextArrayAction* pA = (const MetaTextArrayAction*) pAction; + aText = String( pA->GetText(), pA->GetIndex(), pA->GetLen() ); + } + break; + + case( META_STRETCHTEXT_ACTION ): + { + const MetaStretchTextAction* pA = (const MetaStretchTextAction*) pAction; + aText = String( pA->GetText(), pA->GetIndex(), pA->GetLen() ); + } + break; + + default: + pAction->Execute( &aVDev ); + break; + } + + if( aText.getLength() ) + { + const String& rFontName = aVDev.GetFont().GetName(); + const sal_Unicode* pStr = aText.getStr(); + + for( sal_uInt32 j = 0, nLen = aText.getLength(); j < nLen; ++j ) + maGlyphs[ rFontName ].insert( pStr[ j ] ); + } + } + + aVDev.Pop(); + } + + ++aIter; + } +} + +// ----------------------------------------------------------------------------- + +void SVGFontExport::implEmbedFont( const ::rtl::OUString& rFontName, const ::std::set< sal_Unicode >& rGlyphs ) +{ +#ifdef _SVG_EMBED_FONTS + ::std::set< sal_Unicode >::const_iterator aIter( rGlyphs.begin() ); + const ::rtl::OUString aEmbeddedFontStr( B2UCONST( "EmbeddedFont_" ) ); + + { + SvXMLElementExport aExp( mrExport, XML_NAMESPACE_NONE, "defs", TRUE, TRUE ); + ::rtl::OUString aCurIdStr( aEmbeddedFontStr ); + ::rtl::OUString aUnitsPerEM( SVGActionWriter::GetValueString( nFontEM ) ); + VirtualDevice aVDev; + Font aFont( rFontName, Size( 0, nFontEM ) ); + + aVDev.SetMapMode( MAP_100TH_MM ); + aFont.SetAlign( ALIGN_BASELINE ); + aVDev.SetFont( aFont ); + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "id", aCurIdStr += SVGActionWriter::GetValueString( ++mnCurFontId ) ); + mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", aUnitsPerEM ); + + { + SvXMLElementExport aExp2( mrExport, XML_NAMESPACE_NONE, "font", TRUE, TRUE ); + Point aPos; + Size aSize( nFontEM, nFontEM ); + PolyPolygon aMissingGlyphPolyPoly( Rectangle( aPos, aSize ) ); + + aMissingGlyphPolyPoly.Move( 0, -nFontEM ); + aMissingGlyphPolyPoly.Scale( 1.0, -1.0 ); + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "font-family", GetMappedFontName( rFontName ) ); + mrExport.AddAttribute( XML_NAMESPACE_NONE, "units-per-em", aUnitsPerEM ); + mrExport.AddAttribute( XML_NAMESPACE_NONE, "ascent", SVGActionWriter::GetValueString( aVDev.GetFontMetric().GetAscent() ) ); + mrExport.AddAttribute( XML_NAMESPACE_NONE, "descent", SVGActionWriter::GetValueString( aVDev.GetFontMetric().GetDescent() ) ); + + { + SvXMLElementExport aExp3( mrExport, XML_NAMESPACE_NONE, "font-face", TRUE, TRUE ); + } + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", SVGActionWriter::GetValueString( aSize.Width() ) ); + + { + SvXMLElementExport aExp3( mrExport, XML_NAMESPACE_NONE, "missing-glyph", TRUE, TRUE ); + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "style", B2UCONST( "fill:none;stroke:black;stroke-width:33" ) ); + mrExport.AddAttribute( XML_NAMESPACE_NONE, "d", SVGActionWriter::GetPathString( aMissingGlyphPolyPoly, sal_False ) ); + + { + SvXMLElementExport aExp4( mrExport, XML_NAMESPACE_NONE, "path", TRUE, TRUE ); + } + } + + while( aIter != rGlyphs.end() ) + { + implEmbedGlyph( aVDev, ::rtl::OUString( *aIter ) ); + ++aIter; + } + } + } +#endif +} + +// ----------------------------------------------------------------------------- + +void SVGFontExport::implEmbedGlyph( OutputDevice& rOut, const ::rtl::OUString& rGlyphs ) +{ + PolyPolygon aPolyPoly; + ::rtl::OUString aStr( rGlyphs ); + const sal_Unicode nSpace = ' '; + + if( rOut.GetTextOutline( aPolyPoly, aStr ) ) + { + Rectangle aBoundRect; + + aPolyPoly.Scale( 1.0, -1.0 ); + + if( !rOut.GetTextBoundRect( aBoundRect, aStr ) ) + aBoundRect = Rectangle( Point( 0, 0 ), Size( rOut.GetTextWidth( aStr ), 0 ) ); + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "unicode", aStr ); + + if( rGlyphs[ 0 ] == nSpace ) + aBoundRect = Rectangle( Point( 0, 0 ), Size( rOut.GetTextWidth( sal_Unicode( 'x' ) ), 0 ) ); + + mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", SVGActionWriter::GetValueString( aBoundRect.GetWidth() ) ); + + { + SvXMLElementExport aExp( mrExport, XML_NAMESPACE_NONE, "glyph", TRUE, TRUE ); + const ::rtl::OUString aPathString( SVGActionWriter::GetPathString( aPolyPoly, sal_False ) ); + + if( aPathString.getLength() ) + { + mrExport.AddAttribute( XML_NAMESPACE_NONE, "d", aPathString ); + + { + SvXMLElementExport aElem( mrExport, XML_NAMESPACE_NONE, B2UCONST( "path" ), TRUE, TRUE ); + } + } + } + } +} + +// ----------------------------------------------------------------------------- + +void SVGFontExport::EmbedFonts() +{ + implCollectGlyphs(); + + GlyphMap::const_iterator aIter( maGlyphs.begin() ); + + while( aIter != maGlyphs.end() ) + { + implEmbedFont( (*aIter).first, (*aIter).second ); + ++aIter; + } +} + +// ----------------------------------------------------------------------------- + +::rtl::OUString SVGFontExport::GetMappedFontName( const ::rtl::OUString& rFontName ) const +{ + ::rtl::OUString aRet( String( rFontName ).GetToken( 0, ';' ) ); + +#ifdef _SVG_EMBED_FONTS + if( mnCurFontId ) + aRet += B2UCONST( " embedded" ); +#endif + + return aRet; +} |