vcl/inc/PhysicalFontFace.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
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   9  * This file incorporates work covered by the following license notice:
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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_PHYSICALFONTFACE_HXX
  21 #define INCLUDED_VCL_INC_PHYSICALFONTFACE_HXX
  22
  23 #include <vcl/dllapi.h>
  24
  25 #include "outfont.hxx"
  26
  27 class ImplFontEntry;
  28 struct FontMatchStatus;
  29 class FontSelectPattern;
  30 class PhysicalFontFamily;
  31
  32 struct FontMatchStatus
  33 {
  34 public:
  35     int                 mnFaceMatch;
  36     int                 mnHeightMatch;
  37     int                 mnWidthMatch;
  38     const OUString*     mpTargetStyleName;
  39 };
  40
  41 // - PhysicalFontFace -
  42
  43 // TODO: no more direct access to members
  44 // TODO: add reference counting
  45 // TODO: get rid of height/width for scalable fonts
  46 // TODO: make cloning cheaper
  47
  48 // abstract base class for physical font faces
  49 class VCL_PLUGIN_PUBLIC PhysicalFontFace : public ImplDevFontAttributes
  50 {
  51 public:
  52     // by using an PhysicalFontFace object as a factory for its corresponding
  53     // ImplFontEntry an ImplFontEntry can be extended to cache device and
  54     // font instance specific data
  55     virtual ImplFontEntry*  CreateFontInstance( FontSelectPattern& ) const = 0;
  56
  57     int                     GetHeight() const           { return mnHeight; }
  58     int                     GetWidth() const            { return mnWidth; }
  59     virtual sal_IntPtr      GetFontId() const = 0;
  60     int                     GetFontMagic() const        { return mnMagic; }
  61     bool                    IsScalable() const          { return (mnHeight == 0); }
  62     bool                    CheckMagic( int n ) const   { return (n == mnMagic); }
  63     PhysicalFontFace*       GetNextFace() const         { return mpNext; }
  64     PhysicalFontFace*       CreateAlias() const         { return Clone(); }
  65
  66     bool                    IsBetterMatch( const FontSelectPattern&, FontMatchStatus& ) const;
  67     sal_Int32               CompareWithSize( const PhysicalFontFace& ) const;
  68     sal_Int32               CompareIgnoreSize( const PhysicalFontFace& ) const;
  69     virtual                ~PhysicalFontFace() {}
  70     virtual PhysicalFontFace* Clone() const = 0;
  71
  72 protected:
  73     explicit                PhysicalFontFace( const ImplDevFontAttributes&, int nMagic );
  74     void                    SetBitmapSize( int nW, int nH ) { mnWidth=nW; mnHeight=nH; }
  75
  76     long                    mnWidth;    // Width (in pixels)
  77     long                    mnHeight;   // Height (in pixels)
  78
  79 private:
  80 friend class PhysicalFontFamily;
  81     const int               mnMagic;    // poor man's RTTI
  82     PhysicalFontFace*       mpNext;
  83 };
  84
  85 #endif // INCLUDED_VCL_INC_PHYSICALFONTFACE_HXX
  86
  87 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
  88