icuSources/test/letest/SimpleFontInstance.h

   1 /*
   2  *******************************************************************************
   3  *
   4  *   Copyright (C) 1999-2007, International Business Machines
   5  *   Corporation and others.  All Rights Reserved.
   6  *
   7  *******************************************************************************
   8  *   file name:  SimpleFontInstance.h
   9  *
  10  *   created on: 03/30/2006
  11  *   created by: Eric R. Mader
  12  */
  13
  14 #ifndef __SIMPLEFONTINSTANCE_H
  15 #define __SIMPLEFONTINSTANCE_H
  16
  17 #include "layout/LETypes.h"
  18 #include "layout/LEFontInstance.h"
  19
  20 U_NAMESPACE_USE
  21
  22 class SimpleFontInstance : public LEFontInstance
  23 {
  24 private:
  25     float     fPointSize;
  26     le_int32  fAscent;
  27     le_int32  fDescent;
  28
  29 protected:
  30     const void *readFontTable(LETag tableTag) const;
  31
  32 public:
  33     SimpleFontInstance(float pointSize, LEErrorCode &status);
  34
  35     virtual ~SimpleFontInstance();
  36
  37     virtual const void *getFontTable(LETag tableTag) const;
  38
  39     virtual le_int32 getUnitsPerEM() const;
  40
  41     virtual le_int32 getAscent() const;
  42
  43     virtual le_int32 getDescent() const;
  44
  45     virtual le_int32 getLeading() const;
  46
  47     // We really want to inherit this method from the superclass, but some compilers
  48     // issue a warning if we don't implement it...
  49     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch, const LECharMapper *mapper, le_bool filterZeroWidth) const;
  50
  51     // We really want to inherit this method from the superclass, but some compilers
  52     // issue a warning if we don't implement it...
  53     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch, const LECharMapper *mapper) const;
  54
  55     virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const;
  56
  57     virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const;
  58
  59     virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const;
  60
  61     float getXPixelsPerEm() const;
  62
  63     float getYPixelsPerEm() const;
  64
  65     float getScaleFactorX() const;
  66
  67     float getScaleFactorY() const;
  68
  69 };
  70
  71 #endif