vcl/inc/graphite_serverfont.hxx

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  15  *   License, Version 2.0 (the "License"); you may not use this file
  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 #include "generic/glyphcache.hxx"
  30
  31 class PhysicalFontFace;
  32
  33 // Modules
  34
  35 class VCL_PLUGIN_PUBLIC GraphiteLayoutImpl : public GraphiteLayout
  36 {
  37 public:
  38     GraphiteLayoutImpl(const gr_face * pFace,
  39                        ServerFont & rServerFont) throw()
  40     : GraphiteLayout(pFace), mrServerFont(rServerFont) {};
  41     virtual ~GraphiteLayoutImpl() throw() {};
  42     virtual sal_GlyphId getKashidaGlyph(int & width) SAL_OVERRIDE;
  43 private:
  44     ServerFont & mrServerFont;
  45 };
  46
  47 // This class implments the server font specific parts.
  48 // @author tse
  49
  50 class VCL_PLUGIN_PUBLIC GraphiteServerFontLayout : public ServerFontLayout
  51 {
  52 private:
  53         // mutable so that the DrawOffset/DrawBase can be set
  54         mutable GraphiteLayoutImpl maImpl;
  55         grutils::GrFeatureParser * mpFeatures;
  56         const sal_Unicode * mpStr;
  57 public:
  58         GraphiteServerFontLayout(ServerFont& pServerFont) throw();
  59
  60         virtual bool  LayoutText( ImplLayoutArgs& rArgs) SAL_OVERRIDE
  61         {
  62             mpStr = rArgs.mpStr;
  63             SalLayout::AdjustLayout(rArgs);
  64             return maImpl.LayoutText(rArgs);
  65         };    // first step of layout
  66         virtual void  AdjustLayout( ImplLayoutArgs& rArgs) SAL_OVERRIDE
  67         {
  68             SalLayout::AdjustLayout(rArgs);
  69             maImpl.DrawBase() = maDrawBase;
  70             maImpl.DrawOffset() = maDrawOffset;
  71             maImpl.AdjustLayout(rArgs);
  72         };
  73         virtual DeviceCoordinate GetTextWidth() const SAL_OVERRIDE
  74         {
  75             return maImpl.GetTextWidth();
  76         }
  77         virtual DeviceCoordinate FillDXArray( DeviceCoordinate* dxa ) const SAL_OVERRIDE
  78         {
  79             return maImpl.FillDXArray(dxa);
  80         }
  81         virtual sal_Int32 GetTextBreak(DeviceCoordinate max_width, DeviceCoordinate extra, int factor) const SAL_OVERRIDE
  82         {
  83             return maImpl.GetTextBreak(max_width, extra, factor);
  84         }
  85         virtual void    GetCaretPositions( int as, long* cxa ) const SAL_OVERRIDE
  86         {
  87             maImpl.GetCaretPositions(as, cxa);
  88         }
  89
  90         // used by display layers
  91         virtual int     GetNextGlyphs( int l, sal_GlyphId* gia, Point& p, int& s,
  92                         long* gaa = NULL, int* cpa = NULL,
  93                         const PhysicalFontFace** pFallbackFonts = NULL ) const SAL_OVERRIDE
  94         {
  95             maImpl.DrawBase() = maDrawBase;
  96             maImpl.DrawOffset() = maDrawOffset;
  97             return maImpl.GetNextGlyphs(l, gia, p, s, gaa, cpa, pFallbackFonts);
  98         }
  99
 100         virtual void    MoveGlyph( int nStart, long nNewXPos ) SAL_OVERRIDE { maImpl.MoveGlyph(nStart, nNewXPos); };
 101         virtual void    DropGlyph( int nStart ) SAL_OVERRIDE { maImpl.DropGlyph(nStart); };
 102         virtual void    Simplify( bool bIsBase ) SAL_OVERRIDE { maImpl.Simplify(bIsBase); };
 103
 104         virtual ~GraphiteServerFontLayout() throw();
 105
 106         static bool IsGraphiteEnabledFont(ServerFont& rServerFont);
 107 // For use with PspGraphics
 108         const sal_Unicode* getTextPtr() const { return mpStr; };
 109         int getMinCharPos() const { return mnMinCharPos; }
 110         int getMaxCharPos() const { return mnEndCharPos; }
 111 };
 112
 113 #endif
 114 #endif // INCLUDED_VCL_INC_GRAPHITE_SERVERFONT_HXX
 115
 116 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */