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Diffstat (limited to 'src/pdflib/pdflib/p_font.h')
| -rw-r--r-- | src/pdflib/pdflib/p_font.h | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/pdflib/pdflib/p_font.h b/src/pdflib/pdflib/p_font.h new file mode 100644 index 0000000..3dc4d91 --- /dev/null +++ b/src/pdflib/pdflib/p_font.h @@ -0,0 +1,225 @@ +/*---------------------------------------------------------------------------* + | PDFlib - A library for generating PDF on the fly | + +---------------------------------------------------------------------------+ + | Copyright (c) 1997-2006 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: p_font.h,v 1.1 2008/10/17 06:11:49 scuri Exp $ + * + * Header file for the PDFlib font subsystem + * + */ + +#ifndef P_FONT_H +#define P_FONT_H + +#define PDF_DEFAULT_CHAR PDC_UNICODE_SPACE + +/* internal maximal length of fontnames */ +#define PDF_MAX_FONTNAME 128 + +/* last text rendering mode number */ +#define PDF_LAST_TRMODE 7 + +/* minimal number of glyphs for appropriate encoding */ +#define PDF_MIN_GLYPHS 5 + +typedef enum +{ + font_ascender = (1<<0), + font_descender = (1<<1), + font_capheight = (1<<2), + font_xheight = (1<<3), + font_linegap = (1<<4), + + font_italic = (1<<8), + font_bold = (1<<9) +} +pdf_font_values; + +typedef struct pdf_t3glyph_s pdf_t3glyph; + +/* font options */ +struct pdf_font_options_s +{ + pdc_bool embedding; + char *encoding; + int flags; + char *fontname; + fnt_fontstyle fontstyle; + pdc_bool fontwarning; + int mask; + int monospace; + int ascender; + int descender; + int capheight; + int xheight; + int linegap; + pdc_bool auxiliary; +}; + +/* Type3 font structures */ +struct pdf_t3glyph_s +{ + char *name; + pdc_id charproc_id; + pdc_scalar wx; + pdc_scalar llx; + pdc_scalar lly; + pdc_scalar urx; + pdc_scalar ury; + pdc_scalar width; + int pass; /* 0, 1, 2 */ +}; + +struct pdf_t3font_s +{ + pdf_t3glyph *glyphs; /* dynamically growing glyph table */ + int capacity; /* current number of slots */ + int next_glyph; /* next available slot */ + int curr_glyph; /* slot of current glyph */ + + pdc_id charprocs_id; /* id of /CharProcs dict */ + pdc_id res_id; /* id of /Resources dict */ + pdc_bool colorized; /* glyphs colorized */ + int pass; /* 0, 1, 2 */ + +}; + +/* pdflib font structure */ +struct pdf_font_s +{ + /* pdcore font structure */ + fnt_font ft; + + /* font options */ + pdf_font_options opt; /* pdflib font options */ + pdc_bool verbose; /* put out warning/error messages */ + + /* special font names */ + char *apiname; /* font name specified in API call */ + const char *filename; /* name of font file, copy of ft.filename */ + char *metricfilename; /* name of metric font file */ + + /* font control */ + 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 doc. */ + pdc_bool used_on_current_page; /* this font is in use on current page */ + pdc_id obj_id; /* object id of this font */ + + /* CFF table */ + long cff_offset; /* start of CFF table in font */ + size_t cff_length; /* length of CFF table in font */ + + /* Type3 font */ + pdf_t3font *t3font; /* Type3 font data */ + pdc_bool hasoriginal; /* has the original Type3 font data */ + + /* pdflib encoding and CMap properties */ + char *encapiname; /* encoding name specified in API call */ + char *outcmapname; /* output CMap namel */ + int codepage; /* OEM multi byte code-page number */ + pdc_encoding towinansi; /* convert to 'towinansi' enc. for output */ + pdc_bool hasnomac; /* TT font has no macroman cmap */ + pdc_bool passthrough; /* text will be passed through as is */ + pdc_bool unibyte; /* take Unicode encoding as byte encoding */ + pdc_bool asciispace; /* encoding has space at x20 */ + pdc_bool issemantic; /* encoding is Unicode interpretable */ + pdc_bool widthsmissing; /* GID widths not available */ + pdc_ulong missingglyphs; /* bit mask for missing new AGL glyphs */ + int metricflags; /* flags for faked font values */ + int supplement; /* supplement number of CMap + * = -1: Identity-H/V */ + pdc_encoding symenc; /* font encoding for symbol fonts */ + int replacementchar; /* replacement character */ + int replacementcode; /* replacement code or glyph id resp. */ + + /* encoding and glyph control */ + int codesize; /* code size */ + /* = 0: unknown, no Unicode CMap */ + /* = 1: 1 byte encoding */ + /* = 2: 2 byte encoding */ + int lastcode; /* AFM: last byte code for generating runtime */ + /* byte encoding. = -1: ignore */ + int gid0code; /* code für gid 0 (because of Type3 fonts) */ + pdc_byte *usedgids; /* used Glyph IDs for font subsetting */ + pdc_bool expectglyphs; /* TT: glyph id text strings are expected */ + pdc_bool iscidfont; /* is CID font */ + +}; + +/* p_truetype.c */ +pdc_bool pdf_get_metrics_tt(PDF *p, pdf_font *font, + const char *fontname, pdc_encoding enc, + const char *filename); +int pdf_check_tt_hostfont(PDF *p, const char *hostname); + +/* p_afm.c */ +pdc_bool pdf_process_metrics_data(PDF *p, pdf_font *font, + const char *fontname); +pdc_bool pdf_get_metrics_afm(PDF *p, pdf_font *font, + const char *fontname, pdc_encoding enc, + const char *filename, pdc_bool requested); + +/* p_pfm.c */ +pdc_bool pdf_check_pfm_encoding(PDF *p, pdf_font *font, + pdc_encoding enc); +pdc_bool pdf_get_metrics_pfm(PDF *p, pdf_font *font, + const char *fontname, pdc_encoding enc, + const char *filename, pdc_bool requested); + +/* p_cid.c */ +pdc_bool pdf_handle_cidfont(PDF *p, const char *fontname, + const char *encoding, pdc_encoding enc, pdf_font *font, int *o_slot, + pdc_encoding *newenc); +void pdf_put_cidglyph_widths(PDF *p, pdf_font *font); + +/* p_font.c */ +void pdf_get_page_fonts(PDF *p, pdf_reslist *rl); +void pdf_parse_font_options(PDF *p, const char *optlist); +double pdf_get_font_float_option(PDF *p, pdf_font_optflags fflags); +pdc_bool pdf_check_font_embedding(PDF *p, pdf_font *font, const char *fontname); +pdc_bool pdf_make_fontflag(PDF *p, pdf_font *font); +int pdf_get_code_or_glyphid(PDF *p, pdf_font *font, pdc_encodingvector *ev, + pdc_ushort uv); +void pdf_set_replchar(PDF *p, pdf_font *font); +void pdf_font_issemantic(PDF *p, pdf_font *font); +void pdf_font_set_missvalues(PDF *p, pdf_font *font); +pdc_bool pdf_font_get_is_faked(pdf_font *font, pdf_font_values flag); +double pdf_font_get_metric_value(int value); +const char *pdf_get_encoding_name(PDF *p, pdc_encoding enc, pdf_font *font); +const char *pdf_get_font_char_option(PDF *p, pdf_font_optflags fflags); +const char *pdf_get_pdf_fontname(pdf_font *font); +char *pdf_get_encoding_adaptname(PDF *p, pdc_encoding enc, pdf_font *font, + const char *fontname); +pdc_encodingvector *pdf_create_font_encoding(PDF *p, pdc_encoding enc, + pdf_font *font, const char *fontname, pdc_bool kreg); +void pdf_transform_fontwidths(PDF *p, pdf_font *font, + pdc_encodingvector *evto, pdc_encodingvector *evfrom); + +/* p_type1.c */ +pdc_bool pdf_t1open_fontfile(PDF *p, pdf_font *font, const char *fontname, + PDF_data_source *t1src, pdc_bool requested); +pdc_bool pdf_make_t1src(PDF *p, pdf_font *font, PDF_data_source *t1src); +void pdf_put_length_objs(PDF *p, PDF_data_source *t1src, + pdc_id length1_id, pdc_id length2_id, pdc_id length3_id); + +/* p_type3.c */ +void pdf_cleanup_t3font(PDF *p, pdf_t3font *t3font); +void pdf_init_type3(PDF *p); +pdc_bool pdf_handle_t3font(PDF *p, const char *fontname, pdc_encoding enc, + pdf_font *font, int *slot); +pdc_bool pdf_isvalid_font(PDF *p, int slot); + +/* p_subsett.c */ +int pdf_prepare_ttfont(PDF *p, pdf_font *font); + + +#endif /* P_FONT_H */ + |