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campo-sirio/pdf/pdcore/pc_font.h
brugno 8e01c8dd9a Patch level : 
Files correlati     :
Ricompilazione Demo : [ ]
Commento            :Primo commit del modulo


git-svn-id: svn://10.65.10.50/trunk@13958 c028cbd2-c16b-5b4b-a496-9718f37d4682
2006-05-04 16:36:51 +00:00

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/*---------------------------------------------------------------------------*
| PDFlib - A library for generating PDF on the fly |
+---------------------------------------------------------------------------+
| Copyright (c) 1997-2005 Thomas Merz and PDFlib GmbH. All rights reserved. |
+---------------------------------------------------------------------------+
| |
| This software is subject to the PDFlib license. It is NOT in the |
| public domain. Extended versions and commercial licenses are |
| available, please check http://www.pdflib.com. |
| |
*---------------------------------------------------------------------------*/
/* $Id: pc_font.h,v 1.1 2006-05-04 16:36:51 brugno Exp $
*
* Header file for font handling
*
*/
#ifndef PC_FONT_H
#define PC_FONT_H
#include "pc_core.h"
#include "pc_geom.h"
#include "pc_encoding.h"
/* Predefined character collections */
typedef enum {
cc_simplified_chinese,
cc_traditional_chinese,
cc_japanese,
cc_korean,
cc_identity,
cc_none
} pdc_charcoll;
/* Font types */
typedef enum {
pdc_Type1, /* Type1 fonts */
pdc_MMType1, /* Multiple master fonts */
pdc_TrueType, /* TrueType fonts for 1-byte encoding */
pdc_CIDFontType2, /* TrueType fonts for 2-byte encoding */
pdc_Type1C, /* CFF PostScript fonts for 1-byte encoding */
pdc_CIDFontType0, /* OpenType fonts with CFF_ table for 2-byte encoding */
pdc_CIDFontType0C, /* CFF PostScript fonts for 2-byte encoding */
pdc_Type3, /* Type3 fonts */
pdc_unknownType /* for initialization only */
} pdc_fonttype;
/* Font styles */
typedef enum {
pdc_Normal,
pdc_Bold,
pdc_Italic,
pdc_BoldItalic
} pdc_fontstyle;
typedef struct pdc_interwidth_s pdc_interwidth;
typedef struct pdc_core_metric_s pdc_core_metric;
typedef struct pdc_glyphwidth_s pdc_glyphwidth;
typedef struct pdc_kerningpair_s pdc_kerningpair;
typedef struct pdc_widthdata_s pdc_widthdata;
typedef struct pdc_t3glyph_s pdc_t3glyph;
typedef struct pdc_t3font_s pdc_t3font;
typedef struct pdc_font_s pdc_font;
/* Glyph width data structure */
struct pdc_glyphwidth_s
{
pdc_ushort unicode; /* unicode of glyph */
short code; /* builtin 8-bit code */
pdc_short width; /* glyph width */
};
/* Kerning pair data */
struct pdc_kerningpair_s
{
pdc_ushort glyph1; /* either 8-bit code or unicode of glyph 1 */
pdc_ushort glyph2; /* either 8-bit code or unicode of glyph 2 */
short xamt; /* x amount of kerning */
short dominant; /* = 1: kerning pair domimant */
};
struct pdc_widthdata_s
{
pdc_ushort startcode; /* start unicode value of interval */
int width; /* width of characters in the code */
/* interval */
};
struct pdc_t3glyph_s
{
char *name;
pdc_id charproc_id;
pdc_scalar width;
};
struct pdc_t3font_s
{
pdc_t3glyph *glyphs; /* dynamically growing glyph table */
int capacity; /* current number of slots */
int next_glyph; /* next available slot */
char *fontname; /* fontname */
pdc_id charprocs_id; /* id of /CharProcs dict */
pdc_id res_id; /* id of /Resources dict */
pdc_bool colorized; /* glyphs colorized */
pdc_matrix matrix; /* font matrix */
pdc_rectangle bbox; /* font bounding box */
};
/* The core PDFlib font structure */
struct pdc_font_s {
pdc_bool verbose; /* put out warning/error messages */
pdc_bool verbose_open; /* after opening font file */
char *name; /* fontname */
char *apiname; /* fontname specified in API call */
char *utf8name; /* fontname in UTF-8 with BOM */
char *ttname; /* names[6] in the TT name table */
char *fontfilename; /* name of external font file */
pdc_bool vertical; /* vertical writing mode */
pdc_bool embedding; /* font embedding */
pdc_bool kerning; /* font kerning */
pdc_bool autocidfont; /* automatic convert to CID font */
pdc_bool unicodemap; /* automatic creation of Unicode CMap */
pdc_bool subsetting; /* font subsetting */
pdc_bool autosubsetting; /* automatic font subsetting */
double subsetminsize; /* minimal size for font subsetting */
double subsetlimit; /* maximal percent for font subsetting*/
pdc_bool used_in_formfield; /* this font is in use in form field */
pdc_bool used_in_current_doc; /* this font is in use in current d. */
pdc_bool used_on_current_page; /* this font is in use on current p. */
pdc_id obj_id; /* object id of this font */
unsigned long flags; /* font flags for font descriptor */
pdc_fonttype type; /* type of font */
pdc_fontstyle style; /* TT: style of font */
pdc_bool isstdlatin; /* is standard latin font */
pdc_bool hasnomac; /* TT: has no macroman cmap (0,1) */
pdc_encoding encoding; /* PDFlib font encoding shortcut */
int codepage; /* OEM multi byte code-page number */
int charcoll; /* CID character collection supported */
char *cmapname; /* CID CMap name */
char *encapiname; /* Encoding name specified in API call*/
pdc_encoding towinansi; /* convert to winansi enc. for output */
pdc_bool standardcjk; /* is standard CJK font */
pdc_bool hwcmap; /* HW japanese Unicode CMap */
pdc_bool unibyte; /* Unicode encoding as byte encoding */
pdc_bool asciispace; /* encoding has space at x20 */
pdc_bool issemantic; /* encoding is Unicode interpretable */
pdc_ushort spacechar; /* code of space character */
pdc_ulong missingglyphs; /* bit mask for missing new AGL glyphs*/
double italicAngle; /* AFM key: ItalicAngle */
int isFixedPitch; /* AFM key: IsFixedPitch */
pdc_scalar llx; /* AFM key: FontBBox */
pdc_scalar lly; /* AFM key: FontBBox */
pdc_scalar urx; /* AFM key: FontBBox */
pdc_scalar ury; /* AFM key: FontBBox */
int underlinePosition; /* AFM key: UnderlinePosition */
int underlineThickness; /* AFM key: UnderlineThickness */
int capHeight; /* AFM key: CapHeight */
int xHeight; /* AFM key: XHeight */
int ascender; /* AFM key: Ascender */
int descender; /* AFM key: Descender */
int StdVW; /* AFM key: StdVW */
int StdHW; /* AFM key: StdHW */
int monospace; /* monospace amount */
int metricflags; /* flags for estimated font values */
int numOfGlyphs; /* # of Glyph ID's */
pdc_glyphwidth *glw; /* ptr to glyph metrics array */
int numOfPairs; /* # of entries in pair kerning array */
pdc_kerningpair *pkd; /* ptr to pair kerning array */
int codeSize; /* code size */
/* = 0: unknown, no Unicode CMap */
/* = 1: 1 byte encoding */
/* = 2: 2 byte encoding */
int numOfCodes; /* # of codes defined by encoding */
int lastCode; /* last byte code for generating */
/* runtime byte encoding. */
/* = -1: ignore */
pdc_bool expectGlyphs; /* glyph id text strings are expected */
pdc_bool names_tbf; /* glyph names to be freed */
char **GID2Name; /* mapping Glyph ID -> Glyph name */
pdc_ushort *GID2code; /* mapping Glyph ID -> code */
/* glyphid: code = unicode! */
pdc_ushort *code2GID; /* mapping code -> Glyph ID */
/* glyphid: code = glyphid! */
pdc_ushort *usedGIDs; /* used Glyph IDs */
int defWidth; /* default width */
int numOfWidths; /* # of character width intervals */
pdc_widthdata *widthsTab; /* ptr to character width intervals */
/* or NULL - then consecutive */
int *widths; /* characters widths [numOfCodes] */
char *usedChars; /* bit field for used characters */
/* in a document */
char *imgname; /* name of virtual file contains *img */
size_t filelen; /* length of uncompressed font data */
pdc_byte *img; /* font (or CFF table) data in memory */
long cff_offset; /* start of CFF table in font */
size_t cff_length; /* length of CFF table in font */
pdc_t3font *t3font; /* type 3 font data */
#if defined(MAC) || defined(MACOSX)
int hostfont; /* ID of MAC host font */
int macfontstyle; /* QickDraw font style */
size_t fondlen; /* length of FOND resource */
pdc_byte *fond; /* FOND resource in memory */
#endif
};
/* these defaults are used when the stem value must be derived from the name */
#define PDF_STEMV_MIN 50 /* minimum StemV value */
#define PDF_STEMV_LIGHT 71 /* light StemV value */
#define PDF_STEMV_NORMAL 109 /* normal StemV value */
#define PDF_STEMV_MEDIUM 125 /* mediumbold StemV value */
#define PDF_STEMV_SEMIBOLD 135 /* semibold StemV value */
#define PDF_STEMV_BOLD 165 /* bold StemV value */
#define PDF_STEMV_EXTRABOLD 201 /* extrabold StemV value */
#define PDF_STEMV_BLACK 241 /* black StemV value */
/* Bit positions for the font descriptor flag */
#define FIXEDWIDTH (long) (1L<<0)
#define SERIF (long) (1L<<1)
#define SYMBOL (long) (1L<<2)
#define SCRIPT (long) (1L<<3)
#define ADOBESTANDARD (long) (1L<<5)
#define ITALIC (long) (1L<<6)
#define SMALLCAPS (long) (1L<<17)
#define FORCEBOLD (long) (1L<<18)
#define PDC_DEF_ITALICANGLE -12 /* default italic angle */
#define PDC_MISSING_FONTVAL PDC_SHRT_MIN /* missing font value */
/* pc_font.c */
void pdc_init_font_struct(pdc_core *pdc, pdc_font *font);
void pdc_cleanup_font_struct(pdc_core *pdc, pdc_font *font);
void pdc_font_trace_protocol(pdc_core *pdc, pdc_font *font);
void pdc_cleanup_t3font_struct(pdc_core *pdc, pdc_t3font *t3font);
/* pc_corefont.c */
pdc_bool pdc_is_standard_font(const char *fontname);
const char *pdc_get_abb_std_fontname(const char *fontname);
const pdc_core_metric *pdc_get_core_metric(const char *fontname);
void pdc_init_core_metric(pdc_core *pdc, pdc_core_metric *metric);
void pdc_cleanup_core_metric(pdc_core *pdc, pdc_core_metric *metric);
void pdc_fill_core_metric(pdc_core *pdc,
pdc_font *font, pdc_core_metric *metric);
void pdc_fill_font_metric(pdc_core *pdc,
pdc_font *font, const pdc_core_metric *metric);
#endif /* PC_FONT_H */
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