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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * | |
| 4 * Copyright (C) 1999-2013, 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 compi
lers | |
| 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 compi
lers | |
| 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 | |
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