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
26U_NAMESPACE_USE
27
28class SimpleFontInstance : public LEFontInstance
29{
30private:
31    float     fPointSize;
32    le_int32  fAscent;
33    le_int32  fDescent;
34
35protected:
36    const void *readFontTable(LETag tableTag) const;
37
38public:
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
78