| author | sl |
| Tue, 10 Jun 2014 14:32:02 +0200 | |
| changeset 1 | 260cb5ec6c19 |
| permissions | -rw-r--r-- |
| sl@0 | 1 |
/* |
| sl@0 | 2 |
******************************************************************************* |
| sl@0 | 3 |
* |
| sl@0 | 4 |
* Copyright (C) 1999-2003, International Business Machines |
| sl@0 | 5 |
* Corporation and others. All Rights Reserved. |
| sl@0 | 6 |
* |
| sl@0 | 7 |
******************************************************************************* |
| sl@0 | 8 |
* file name: PortableFontInstance.h |
| sl@0 | 9 |
* |
| sl@0 | 10 |
* created on: 11/12/1999 |
| sl@0 | 11 |
* created by: Eric R. Mader |
| sl@0 | 12 |
*/ |
| sl@0 | 13 |
|
| sl@0 | 14 |
#ifndef __PORTABLEFONTINSTANCE_H |
| sl@0 | 15 |
#define __PORTABLEFONTINSTANCE_H |
| sl@0 | 16 |
|
| sl@0 | 17 |
#include <stdio.h> |
| sl@0 | 18 |
|
| sl@0 | 19 |
#include "layout/LETypes.h" |
| sl@0 | 20 |
#include "layout/LEFontInstance.h" |
| sl@0 | 21 |
|
| sl@0 | 22 |
#include "FontTableCache.h" |
| sl@0 | 23 |
|
| sl@0 | 24 |
#include "sfnt.h" |
| sl@0 | 25 |
#include "cmaps.h" |
| sl@0 | 26 |
|
| sl@0 | 27 |
class PortableFontInstance : public LEFontInstance, protected FontTableCache |
| sl@0 | 28 |
{
|
| sl@0 | 29 |
private: |
| sl@0 | 30 |
FILE *fFile; |
| sl@0 | 31 |
|
| sl@0 | 32 |
float fPointSize; |
| sl@0 | 33 |
le_int32 fUnitsPerEM; |
| sl@0 | 34 |
le_int32 fAscent; |
| sl@0 | 35 |
le_int32 fDescent; |
| sl@0 | 36 |
le_int32 fLeading; |
| sl@0 | 37 |
|
| sl@0 | 38 |
const SFNTDirectory *fDirectory; |
| sl@0 | 39 |
le_uint16 fDirPower; |
| sl@0 | 40 |
le_uint16 fDirExtra; |
| sl@0 | 41 |
|
| sl@0 | 42 |
float fDeviceScaleX; |
| sl@0 | 43 |
float fDeviceScaleY; |
| sl@0 | 44 |
|
| sl@0 | 45 |
CMAPMapper *fCMAPMapper; |
| sl@0 | 46 |
|
| sl@0 | 47 |
const HMTXTable *fHMTXTable; |
| sl@0 | 48 |
le_uint16 fNumGlyphs; |
| sl@0 | 49 |
le_uint16 fNumLongHorMetrics; |
| sl@0 | 50 |
|
| sl@0 | 51 |
static le_int8 highBit(le_int32 value); |
| sl@0 | 52 |
|
| sl@0 | 53 |
const DirectoryEntry *findTable(LETag tag) const; |
| sl@0 | 54 |
const void *readTable(LETag tag, le_uint32 *length) const; |
| sl@0 | 55 |
void deleteTable(const void *table) const; |
| sl@0 | 56 |
void getMetrics(); |
| sl@0 | 57 |
|
| sl@0 | 58 |
CMAPMapper *findUnicodeMapper(); |
| sl@0 | 59 |
|
| sl@0 | 60 |
protected: |
| sl@0 | 61 |
const void *readFontTable(LETag tableTag) const; |
| sl@0 | 62 |
|
| sl@0 | 63 |
public: |
| sl@0 | 64 |
PortableFontInstance(char *fileName, float pointSize, LEErrorCode &status); |
| sl@0 | 65 |
|
| sl@0 | 66 |
virtual ~PortableFontInstance(); |
| sl@0 | 67 |
|
| sl@0 | 68 |
virtual const void *getFontTable(LETag tableTag) const; |
| sl@0 | 69 |
|
| sl@0 | 70 |
virtual le_int32 getUnitsPerEM() const |
| sl@0 | 71 |
{
|
| sl@0 | 72 |
return fUnitsPerEM; |
| sl@0 | 73 |
}; |
| sl@0 | 74 |
|
| sl@0 | 75 |
virtual le_int32 getAscent() const |
| sl@0 | 76 |
{
|
| sl@0 | 77 |
return fAscent; |
| sl@0 | 78 |
} |
| sl@0 | 79 |
|
| sl@0 | 80 |
virtual le_int32 getDescent() const |
| sl@0 | 81 |
{
|
| sl@0 | 82 |
return fDescent; |
| sl@0 | 83 |
} |
| sl@0 | 84 |
|
| sl@0 | 85 |
virtual le_int32 getLeading() const |
| sl@0 | 86 |
{
|
| sl@0 | 87 |
return fLeading; |
| sl@0 | 88 |
} |
| sl@0 | 89 |
|
| sl@0 | 90 |
virtual LEGlyphID mapCharToGlyph(LEUnicode32 ch) const |
| sl@0 | 91 |
{
|
| sl@0 | 92 |
return fCMAPMapper->unicodeToGlyph(ch); |
| sl@0 | 93 |
} |
| sl@0 | 94 |
|
| sl@0 | 95 |
virtual void getGlyphAdvance(LEGlyphID glyph, LEPoint &advance) const; |
| sl@0 | 96 |
|
| sl@0 | 97 |
virtual le_bool getGlyphPoint(LEGlyphID glyph, le_int32 pointNumber, LEPoint &point) const; |
| sl@0 | 98 |
|
| sl@0 | 99 |
float getXPixelsPerEm() const |
| sl@0 | 100 |
{
|
| sl@0 | 101 |
return fPointSize; |
| sl@0 | 102 |
}; |
| sl@0 | 103 |
|
| sl@0 | 104 |
float getYPixelsPerEm() const |
| sl@0 | 105 |
{
|
| sl@0 | 106 |
return fPointSize; |
| sl@0 | 107 |
}; |
| sl@0 | 108 |
|
| sl@0 | 109 |
float getScaleFactorX() const |
| sl@0 | 110 |
{
|
| sl@0 | 111 |
return 1.0; |
| sl@0 | 112 |
} |
| sl@0 | 113 |
|
| sl@0 | 114 |
float getScaleFactorY() const |
| sl@0 | 115 |
{
|
| sl@0 | 116 |
return 1.0; |
| sl@0 | 117 |
} |
| sl@0 | 118 |
|
| sl@0 | 119 |
}; |
| sl@0 | 120 |
|
| sl@0 | 121 |
#endif |