vcl/source/gdi/pdffontcache.cxx

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  30
  31 #include "precompiled_vcl.hxx"
  32
  33 #include "pdffontcache.hxx"
  34 #include <vcl/salgdi.hxx>
  35 #include <vcl/outfont.hxx>
  36 #include <vcl/sallayout.hxx>
  37
  38 using namespace vcl;
  39
  40 PDFFontCache::FontIdentifier::FontIdentifier( const ImplFontData* pFont, bool bVertical ) :
  41     m_nFontId( pFont->GetFontId() ),
  42     m_nMagic( pFont->GetFontMagic() ),
  43     m_bVertical( bVertical )
  44 {
  45 }
  46
  47 PDFFontCache::FontData& PDFFontCache::getFont( const ImplFontData* pFont, bool bVertical )
  48 {
  49     FontIdentifier aId( pFont, bVertical );
  50     FontToIndexMap::iterator it = m_aFontToIndex.find( aId );
  51     if( it != m_aFontToIndex.end() )
  52         return m_aFonts[ it->second ];
  53     m_aFontToIndex[ aId ] = sal_uInt32(m_aFonts.size());
  54     m_aFonts.push_back( FontData() );
  55     return m_aFonts.back();
  56 }
  57
  58 sal_Int32 PDFFontCache::getGlyphWidth( const ImplFontData* pFont, sal_GlyphId nGlyph, bool bVertical, SalGraphics* pGraphics )
  59 {
  60     sal_Int32 nWidth = 0;
  61     FontData& rFontData( getFont( pFont, bVertical ) );
  62     if( rFontData.m_nWidths.empty() )
  63     {
  64         pGraphics->GetGlyphWidths( pFont, bVertical, rFontData.m_nWidths, rFontData.m_aGlyphIdToIndex );
  65     }
  66     if( ! rFontData.m_nWidths.empty() )
  67     {
  68         sal_GlyphId nIndex = nGlyph;
  69         if( (nGlyph & GF_ISCHAR) != 0 )
  70         {
  71             const sal_Ucs cCode = static_cast<sal_Ucs>(nGlyph & GF_IDXMASK);
  72             Ucs2UIntMap::const_iterator it = rFontData.m_aGlyphIdToIndex.find( cCode );
  73
  74             // allow symbol aliasing U+00xx -> U+F0xx if there is no direct match
  75             if( it == rFontData.m_aGlyphIdToIndex.end()
  76             &&  pFont->IsSymbolFont()
  77             &&  (cCode < 0x0100) )
  78                 it = rFontData.m_aGlyphIdToIndex.find( cCode+0xF000 );
  79
  80             nIndex = (it != rFontData.m_aGlyphIdToIndex.end()) ? it->second : 0;
  81         }
  82         nIndex &= GF_IDXMASK;
  83         if( nIndex < rFontData.m_nWidths.size() )
  84             nWidth = rFontData.m_nWidths[ nIndex ];
  85     }
  86     return nWidth;
  87 }
  88