xref: /aoo42x/main/vcl/source/gdi/pdffontcache.cxx (revision 9f62ea84)
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21 
22 
23 
24 #include "precompiled_vcl.hxx"
25 
26 #include "pdffontcache.hxx"
27 #include <salgdi.hxx>
28 #include <outfont.hxx>
29 #include <sallayout.hxx>
30 
31 using namespace vcl;
32 
FontIdentifier(const ImplFontData * pFont,bool bVertical)33 PDFFontCache::FontIdentifier::FontIdentifier( const ImplFontData* pFont, bool bVertical ) :
34     m_nFontId( pFont->GetFontId() ),
35     m_nMagic( pFont->GetFontMagic() ),
36     m_bVertical( bVertical )
37 {
38 }
39 
getFont(const ImplFontData * pFont,bool bVertical)40 PDFFontCache::FontData& PDFFontCache::getFont( const ImplFontData* pFont, bool bVertical )
41 {
42     FontIdentifier aId( pFont, bVertical );
43     FontToIndexMap::iterator it = m_aFontToIndex.find( aId );
44     if( it != m_aFontToIndex.end() )
45         return m_aFonts[ it->second ];
46     m_aFontToIndex[ aId ] = sal_uInt32(m_aFonts.size());
47     m_aFonts.push_back( FontData() );
48     return m_aFonts.back();
49 }
50 
getGlyphWidth(const ImplFontData * pFont,sal_GlyphId nGlyph,bool bVertical,SalGraphics * pGraphics)51 sal_Int32 PDFFontCache::getGlyphWidth( const ImplFontData* pFont, sal_GlyphId nGlyph, bool bVertical, SalGraphics* pGraphics )
52 {
53     sal_Int32 nWidth = 0;
54     FontData& rFontData( getFont( pFont, bVertical ) );
55     if( rFontData.m_nWidths.empty() )
56     {
57         pGraphics->GetGlyphWidths( pFont, bVertical, rFontData.m_nWidths, rFontData.m_aGlyphIdToIndex );
58     }
59     if( ! rFontData.m_nWidths.empty() )
60     {
61         sal_GlyphId nIndex = nGlyph;
62         if( (nGlyph & GF_ISCHAR) != 0 )
63         {
64             const sal_Ucs cCode = static_cast<sal_Ucs>(nGlyph & GF_IDXMASK);
65             Ucs2UIntMap::const_iterator it = rFontData.m_aGlyphIdToIndex.find( cCode );
66 
67 			// allow symbol aliasing U+00xx -> U+F0xx if there is no direct match
68             if( it == rFontData.m_aGlyphIdToIndex.end()
69 			&&  pFont->IsSymbolFont()
70 			&&  (cCode < 0x0100) )
71                 it = rFontData.m_aGlyphIdToIndex.find( cCode+0xF000 );
72 
73             nIndex = (it != rFontData.m_aGlyphIdToIndex.end()) ? it->second : 0;
74         }
75         nIndex &= GF_IDXMASK;
76         if( nIndex < rFontData.m_nWidths.size() )
77             nWidth = rFontData.m_nWidths[ nIndex ];
78     }
79     return nWidth;
80 }
81 
82