/* -*- 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 "svgfontexport.hxx" #include "svgfilter.hxx" #include "svgwriter.hxx" #include #include #include #include #include #include #include #include #include const sal_Int32 nFontEM = 2048; SVGFontExport::SVGFontExport( SVGExport& rExport, const ::std::vector< ObjectRepresentation >& rObjects ) : mrExport( rExport ), maObjects( rObjects ), mnCurFontId( 0 ) { } SVGFontExport::~SVGFontExport() { } SVGFontExport::GlyphSet& SVGFontExport::implGetGlyphSet( const vcl::Font& rFont ) { FontWeight eWeight( WEIGHT_NORMAL ); FontItalic eItalic( ITALIC_NONE ); const OUString& aFontName( rFont.GetFamilyName() ); switch( rFont.GetWeight() ) { case WEIGHT_BOLD: case WEIGHT_ULTRABOLD: case WEIGHT_BLACK: eWeight = WEIGHT_BOLD; break; default: break; } if( rFont.GetItalic() != ITALIC_NONE ) eItalic = ITALIC_NORMAL; return( maGlyphTree[ aFontName.getToken( 0, ';' ) ][ eWeight ][ eItalic ] ); } void SVGFontExport::implCollectGlyphs() { ScopedVclPtrInstance< VirtualDevice > pVDev; pVDev->EnableOutput( false ); for (auto const& elem : maObjects) { if( elem.HasRepresentation() ) { const GDIMetaFile& rMtf = elem.GetRepresentation(); pVDev->Push(); for( size_t i = 0, nCount = rMtf.GetActionSize(); i < nCount; ++i ) { OUString aText; MetaAction* pAction = rMtf.GetAction( i ); const MetaActionType nType = pAction->GetType(); switch( nType ) { case MetaActionType::TEXT: { const MetaTextAction* pA = static_cast(pAction); sal_Int32 aLength=std::min( pA->GetText().getLength(), pA->GetLen() ); aText = pA->GetText().copy( pA->GetIndex(), aLength ); } break; case MetaActionType::TEXTRECT: { const MetaTextRectAction* pA = static_cast(pAction); aText = pA->GetText(); } break; case MetaActionType::TEXTARRAY: { const MetaTextArrayAction* pA = static_cast(pAction); sal_Int32 aLength=std::min( pA->GetText().getLength(), pA->GetLen() ); aText = pA->GetText().copy( pA->GetIndex(), aLength ); } break; case MetaActionType::STRETCHTEXT: { const MetaStretchTextAction* pA = static_cast(pAction); sal_Int32 aLength=std::min( pA->GetText().getLength(), pA->GetLen() ); aText = pA->GetText().copy( pA->GetIndex(), aLength ); } break; default: pAction->Execute( pVDev ); break; } if( !aText.isEmpty() ) { GlyphSet& rGlyphSet = implGetGlyphSet( pVDev->GetFont() ); css::uno::Reference< css::i18n::XBreakIterator > xBI( vcl::unohelper::CreateBreakIterator() ); if( xBI.is() ) { const css::lang::Locale& rLocale = Application::GetSettings().GetLanguageTag().getLocale(); sal_Int32 nCurPos = 0, nLastPos = -1; while( ( nCurPos < aText.getLength() ) && ( nCurPos > nLastPos ) ) { sal_Int32 nCount2 = 1; nLastPos = nCurPos; nCurPos = xBI->nextCharacters( aText, nCurPos, rLocale, css::i18n::CharacterIteratorMode::SKIPCELL, nCount2, nCount2 ); rGlyphSet.insert( aText.copy( nLastPos, nCurPos - nLastPos ) ); } } else { const sal_Unicode* pStr = aText.getStr(); for( sal_uInt32 k = 0, nLen = aText.getLength(); k < nLen; ++k ) rGlyphSet.insert( OUString( pStr[ k ] ) ); } } } pVDev->Pop(); } } } void SVGFontExport::implEmbedFont( const vcl::Font& rFont ) { if( !mrExport.IsEmbedFonts() ) return; GlyphSet& rGlyphSet = implGetGlyphSet( rFont ); if( rGlyphSet.empty() ) return; { SvXMLElementExport aExp( mrExport, XML_NAMESPACE_NONE, "defs", true, true ); OUString aCurIdStr( "EmbeddedFont_" ); OUString aUnitsPerEM( OUString::number( nFontEM ) ); ScopedVclPtrInstance< VirtualDevice > pVDev; vcl::Font aFont( rFont ); aFont.SetFontSize( Size( 0, nFontEM ) ); aFont.SetAlignment( ALIGN_BASELINE ); pVDev->SetMapMode(MapMode(MapUnit::Map100thMM)); pVDev->SetFont( aFont ); aCurIdStr += OUString::number( ++mnCurFontId ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "id", aCurIdStr ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", aUnitsPerEM ); { SvXMLElementExport aExp2( mrExport, XML_NAMESPACE_NONE, "font", true, true ); OUString aFontWeight; OUString aFontStyle; const Size aSize( nFontEM, nFontEM ); // Font Weight if( aFont.GetWeight() != WEIGHT_NORMAL ) aFontWeight = "bold"; else aFontWeight = "normal"; // Font Italic if( aFont.GetItalic() != ITALIC_NONE ) aFontStyle = "italic"; else aFontStyle = "normal"; mrExport.AddAttribute( XML_NAMESPACE_NONE, "font-family", GetMappedFontName( rFont.GetFamilyName() ) ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "units-per-em", aUnitsPerEM ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "font-weight", aFontWeight ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "font-style", aFontStyle ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "ascent", OUString::number( pVDev->GetFontMetric().GetAscent() ) ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "descent", OUString::number( pVDev->GetFontMetric().GetDescent() ) ); { SvXMLElementExport aExp3( mrExport, XML_NAMESPACE_NONE, "font-face", true, true ); } mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", OUString::number( aSize.Width() ) ); { const Point aPos; const tools::PolyPolygon aMissingGlyphPolyPoly( tools::Rectangle( aPos, aSize ) ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "d", SVGActionWriter::GetPathString( aMissingGlyphPolyPoly, false ) ); { SvXMLElementExport aExp4( mrExport, XML_NAMESPACE_NONE, "missing-glyph", true, true ); } } for (auto const& glyph : rGlyphSet) { implEmbedGlyph( *pVDev, glyph); } } } } void SVGFontExport::implEmbedGlyph( OutputDevice const & rOut, const OUString& rCellStr ) { tools::PolyPolygon aPolyPoly; const sal_Unicode nSpace = ' '; if( !rOut.GetTextOutline( aPolyPoly, rCellStr ) ) return; tools::Rectangle aBoundRect; aPolyPoly.Scale( 1.0, -1.0 ); if( !rOut.GetTextBoundRect( aBoundRect, rCellStr ) ) aBoundRect = tools::Rectangle( Point( 0, 0 ), Size( rOut.GetTextWidth( rCellStr ), 0 ) ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "unicode", rCellStr ); if( rCellStr[ 0 ] == nSpace && rCellStr.getLength() == 1 ) aBoundRect = tools::Rectangle( Point( 0, 0 ), Size( rOut.GetTextWidth( OUString(' ') ), 0 ) ); mrExport.AddAttribute( XML_NAMESPACE_NONE, "horiz-adv-x", OUString::number( aBoundRect.GetWidth() ) ); const OUString aPathString( SVGActionWriter::GetPathString( aPolyPoly, false ) ); if( !aPathString.isEmpty() ) { mrExport.AddAttribute( XML_NAMESPACE_NONE, "d", aPathString ); } { SvXMLElementExport aExp( mrExport, XML_NAMESPACE_NONE, "glyph", true, true ); } } void SVGFontExport::EmbedFonts() { implCollectGlyphs(); for (auto const& glyph : maGlyphTree) { const FontWeightMap& rFontWeightMap = glyph.second; for (auto const& fontWeight : rFontWeightMap) { const FontItalicMap& rFontItalicMap = fontWeight.second; for (auto const& fontItalic : rFontItalicMap) { vcl::Font aFont; aFont.SetFamilyName( glyph.first ); aFont.SetWeight( fontWeight.first ); aFont.SetItalic( fontItalic.first ); implEmbedFont( aFont ); } } } } OUString SVGFontExport::GetMappedFontName( const OUString& rFontName ) const { OUString aRet( rFontName.getToken( 0, ';' ) ); if( mnCurFontId ) aRet += " embedded"; return aRet; } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */