vcl/inc/graphite_serverfont.hxx

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   9  * This file incorporates work covered by the following license notice:
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  14  *   ownership. The ASF licenses this file to you under the Apache
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  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
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  19
  20 #ifndef INCLUDED_VCL_INC_GRAPHITE_SERVERFONT_HXX
  21 #define INCLUDED_VCL_INC_GRAPHITE_SERVERFONT_HXX
  22
  23 // We need this to enable namespace support in libgrengine headers.
  24 #define GR_NAMESPACE
  25
  26 #ifndef _MSC_VER
  27 #include <graphite_layout.hxx>
  28
  29 class PhysicalFontFace;
  30
  31 // Modules
  32
  33 class VCL_PLUGIN_PUBLIC GraphiteLayoutImpl : public GraphiteLayout
  34 {
  35 public:
  36     GraphiteLayoutImpl(const gr_face * pFace,
  37                        ServerFont & rServerFont) throw()
  38     : GraphiteLayout(pFace), mrServerFont(rServerFont) {};
  39     virtual ~GraphiteLayoutImpl() throw() {};
  40     virtual sal_GlyphId getKashidaGlyph(int & width) SAL_OVERRIDE;
  41 private:
  42     ServerFont & mrServerFont;
  43 };
  44
  45 // This class implments the server font specific parts.
  46 // @author tse
  47
  48 class VCL_PLUGIN_PUBLIC GraphiteServerFontLayout : public ServerFontLayout
  49 {
  50 private:
  51         // mutable so that the DrawOffset/DrawBase can be set
  52         mutable GraphiteLayoutImpl maImpl;
  53         grutils::GrFeatureParser * mpFeatures;
  54         const sal_Unicode * mpStr;
  55 public:
  56         GraphiteServerFontLayout(ServerFont& pServerFont) throw();
  57
  58         virtual bool  LayoutText( ImplLayoutArgs& rArgs) SAL_OVERRIDE
  59         {
  60             mpStr = rArgs.mpStr;
  61             SalLayout::AdjustLayout(rArgs);
  62             return maImpl.LayoutText(rArgs);
  63         };    // first step of layout
  64         virtual void  AdjustLayout( ImplLayoutArgs& rArgs) SAL_OVERRIDE
  65         {
  66             SalLayout::AdjustLayout(rArgs);
  67             maImpl.DrawBase() = maDrawBase;
  68             maImpl.DrawOffset() = maDrawOffset;
  69             maImpl.AdjustLayout(rArgs);
  70         };
  71         virtual long    GetTextWidth() const SAL_OVERRIDE                           { return maImpl.GetTextWidth(); }
  72         virtual long    FillDXArray( sal_Int32* dxa ) const SAL_OVERRIDE                 { return maImpl.FillDXArray(dxa); }
  73         virtual sal_Int32 GetTextBreak(long mw, long ce, int f) const SAL_OVERRIDE
  74             { return maImpl.GetTextBreak(mw, ce, f); }
  75         virtual void    GetCaretPositions( int as, sal_Int32* cxa ) const SAL_OVERRIDE   { maImpl.GetCaretPositions(as, cxa); }
  76
  77         // used by display layers
  78         virtual int     GetNextGlyphs( int l, sal_GlyphId* gia, Point& p, int& s,
  79                         sal_Int32* gaa = NULL, int* cpa = NULL,
  80                         const PhysicalFontFace** pFallbackFonts = NULL ) const SAL_OVERRIDE
  81         {
  82             maImpl.DrawBase() = maDrawBase;
  83             maImpl.DrawOffset() = maDrawOffset;
  84             return maImpl.GetNextGlyphs(l, gia, p, s, gaa, cpa, pFallbackFonts);
  85         }
  86
  87         virtual void    MoveGlyph( int nStart, long nNewXPos ) SAL_OVERRIDE { maImpl.MoveGlyph(nStart, nNewXPos); };
  88         virtual void    DropGlyph( int nStart ) SAL_OVERRIDE { maImpl.DropGlyph(nStart); };
  89         virtual void    Simplify( bool bIsBase ) SAL_OVERRIDE { maImpl.Simplify(bIsBase); };
  90
  91         virtual ~GraphiteServerFontLayout() throw();
  92
  93         static bool IsGraphiteEnabledFont(ServerFont& rServerFont);
  94 // For use with PspGraphics
  95         const sal_Unicode* getTextPtr() const { return mpStr; };
  96         int getMinCharPos() const { return mnMinCharPos; }
  97         int getMaxCharPos() const { return mnEndCharPos; }
  98 };
  99
 100 #endif
 101 #endif // INCLUDED_VCL_INC_GRAPHITE_SERVERFONT_HXX
 102
 103 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */