vcl/inc/graphite_serverfont.hxx

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   2 /*
   3  * This file is part of the LibreOffice project.
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   5  * This Source Code Form is subject to the terms of the Mozilla Public
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   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
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  14  *   ownership. The ASF licenses this file to you under the Apache
  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 .
  18  */
  19
  20 #ifndef _SV_GRAPHITESERVERFONT_HXX
  21 #define _SV_GRAPHITESERVERFONT_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 // Modules
  30
  31 class VCL_PLUGIN_PUBLIC GraphiteLayoutImpl : public GraphiteLayout
  32 {
  33 public:
  34     GraphiteLayoutImpl(const gr_face * pFace,
  35                        ServerFont & rServerFont) throw()
  36     : GraphiteLayout(pFace), mrServerFont(rServerFont) {};
  37     virtual ~GraphiteLayoutImpl() throw() {};
  38     virtual sal_GlyphId getKashidaGlyph(int & width);
  39 private:
  40     ServerFont & mrServerFont;
  41 };
  42
  43 // This class implments the server font specific parts.
  44 // @author tse
  45 //
  46 class VCL_PLUGIN_PUBLIC GraphiteServerFontLayout : public ServerFontLayout
  47 {
  48 private:
  49         // mutable so that the DrawOffset/DrawBase can be set
  50         mutable GraphiteLayoutImpl maImpl;
  51         grutils::GrFeatureParser * mpFeatures;
  52         const sal_Unicode * mpStr;
  53 public:
  54         GraphiteServerFontLayout(ServerFont& pServerFont) throw();
  55
  56         virtual bool  LayoutText( ImplLayoutArgs& rArgs)
  57         {
  58             mpStr = rArgs.mpStr;
  59             SalLayout::AdjustLayout(rArgs);
  60             return maImpl.LayoutText(rArgs);
  61         };    // first step of layout
  62         virtual void  AdjustLayout( ImplLayoutArgs& rArgs)
  63         {
  64             SalLayout::AdjustLayout(rArgs);
  65             maImpl.DrawBase() = maDrawBase;
  66             maImpl.DrawOffset() = maDrawOffset;
  67             maImpl.AdjustLayout(rArgs);
  68         };
  69         virtual long    GetTextWidth() const                           { return maImpl.GetTextWidth(); }
  70         virtual long    FillDXArray( sal_Int32* dxa ) const                 { return maImpl.FillDXArray(dxa); }
  71         virtual int     GetTextBreak( long mw, long ce, int f ) const  { return maImpl.GetTextBreak(mw, ce, f); }
  72         virtual void    GetCaretPositions( int as, sal_Int32* cxa ) const   { maImpl.GetCaretPositions(as, cxa); }
  73
  74         // used by display layers
  75         virtual int     GetNextGlyphs( int l, sal_GlyphId* gia, Point& p, int& s,
  76                         sal_Int32* gaa = NULL, int* cpa = NULL,
  77                         const PhysicalFontFace** pFallbackFonts = NULL ) const
  78         {
  79             maImpl.DrawBase() = maDrawBase;
  80             maImpl.DrawOffset() = maDrawOffset;
  81             return maImpl.GetNextGlyphs(l, gia, p, s, gaa, cpa, pFallbackFonts);
  82         }
  83
  84         virtual void    MoveGlyph( int nStart, long nNewXPos ) { maImpl.MoveGlyph(nStart, nNewXPos); };
  85         virtual void    DropGlyph( int nStart ) { maImpl.DropGlyph(nStart); };
  86         virtual void    Simplify( bool bIsBase ) { maImpl.Simplify(bIsBase); };
  87
  88         virtual ~GraphiteServerFontLayout() throw();
  89
  90         static bool IsGraphiteEnabledFont(ServerFont& rServerFont);
  91 // For use with PspGraphics
  92         const sal_Unicode* getTextPtr() const { return mpStr; };
  93         int getMinCharPos() const { return mnMinCharPos; }
  94         int getMaxCharPos() const { return mnEndCharPos; }
  95 };
  96
  97 #endif
  98 #endif //_SV_GRAPHITESERVERFONT_HXX
  99
 100 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */