1 // Copyright (C) 2016 and later: Unicode, Inc. and others. 2 // License & terms of use: http://www.unicode.org/copyright.html 3 /* 4 ******************************************************************************* 5 * 6 * Copyright (C) 1999-2015, International Business Machines 7 * Corporation and others. All Rights Reserved. 8 * 9 ******************************************************************************* 10 * file name: SimpleFontInstance.h 11 * 12 * created on: 03/30/2006 13 * created by: Eric R. Mader 14 */ 15 16 #ifndef __SIMPLEFONTINSTANCE_H 17 #define __SIMPLEFONTINSTANCE_H 18 19 #include "layout/LETypes.h" 20 #include "layout/LEFontInstance.h" 21 22 U_NAMESPACE_USE 23 24 class SimpleFontInstance : public LEFontInstance 25 { 26 private: 27 float fPointSize; 28 le_int32 fAscent; 29 le_int32 fDescent; 30 31 protected: 32 const void *readFontTable(LETag tableTag) const; 33 34 public: 35 SimpleFontInstance(float pointSize, LEErrorCode &status); 36 37 virtual ~SimpleFontInstance(); 38 39 virtual const void *getFontTable(LETag tableTag, size_t &length) const; 40 41 virtual le_int32 getUnitsPerEM() const; 42 43 virtual le_int32 getAscent() const; 44 45 virtual le_int32 getDescent() const; 46 47 virtual le_int32 getLeading() const; 48 49 // We really want to inherit this method from the superclass, but some compilers 50 // issue a warning if we don't implement it... 51 virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch, const LECharMapper *mapper, le_bool filterZeroWidth) 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) const; 56 57 virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const; 58 59 virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const; 60 61 virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const; 62 63 float getXPixelsPerEm() const; 64 65 float getYPixelsPerEm() const; 66 67 float getScaleFactorX() const; 68 69 float getScaleFactorY() const; 70 71 }; 72 73 #endif 74
