icuSources/test/perf/leperf/SimpleFontInstance.h

   1 /*
   2  *******************************************************************************
   3  *
   4  *   © 2016 and later: Unicode, Inc. and others.
   5  *   License & terms of use: http://www.unicode.org/copyright.html#License
   6  *
   7  *******************************************************************************
   8  *******************************************************************************
   9  *
  10  *   Copyright (C) 1999-2013, International Business Machines
  11  *   Corporation and others.  All Rights Reserved.
  12  *
  13  *******************************************************************************
  14  *   file name:  SimpleFontInstance.h
  15  *
  16  *   created on: 03/30/2006
  17  *   created by: Eric R. Mader
  18  */
  19
  20 #ifndef __SIMPLEFONTINSTANCE_H
  21 #define __SIMPLEFONTINSTANCE_H
  22
  23 #include "layout/LETypes.h"
  24 #include "layout/LEFontInstance.h"
  25
  26 U_NAMESPACE_USE
  27
  28 class SimpleFontInstance : public LEFontInstance
  29 {
  30 private:
  31     float     fPointSize;
  32     le_int32  fAscent;
  33     le_int32  fDescent;
  34
  35 protected:
  36     const void *readFontTable(LETag tableTag) const;
  37
  38 public:
  39     SimpleFontInstance(float pointSize, LEErrorCode &status);
  40
  41     virtual ~SimpleFontInstance();
  42
  43     virtual const void *getFontTable(LETag tableTag) const;
  44
  45     virtual le_int32 getUnitsPerEM() const;
  46
  47     virtual le_int32 getAscent() const;
  48
  49     virtual le_int32 getDescent() const;
  50
  51     virtual le_int32 getLeading() const;
  52
  53     // We really want to inherit this method from the superclass, but some compilers
  54     // issue a warning if we don't implement it...
  55     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch, const LECharMapper *mapper, le_bool filterZeroWidth) const;
  56
  57     // We really want to inherit this method from the superclass, but some compilers
  58     // issue a warning if we don't implement it...
  59     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch, const LECharMapper *mapper) const;
  60
  61     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const;
  62
  63     virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const;
  64
  65     virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const;
  66
  67     float getXPixelsPerEm() const;
  68
  69     float getYPixelsPerEm() const;
  70
  71     float getScaleFactorX() const;
  72
  73     float getScaleFactorY() const;
  74
  75 };
  76
  77 #endif