summaryrefslogtreecommitdiff
path: root/src/pdflib/font/ft_font.h
diff options
context:
space:
mode:
authorscuri <scuri>2008-10-17 06:10:33 +0000
committerscuri <scuri>2008-10-17 06:10:33 +0000
commit7b52cc13af4e85f1ca2deb6b6c77de9c95ea0dcf (patch)
treed0857278bde2eff784227c57dcaf930346ceb7ac /src/pdflib/font/ft_font.h
First commit - moving from LuaForge to SourceForge
Diffstat (limited to 'src/pdflib/font/ft_font.h')
-rw-r--r--src/pdflib/font/ft_font.h267
1 files changed, 267 insertions, 0 deletions
diff --git a/src/pdflib/font/ft_font.h b/src/pdflib/font/ft_font.h
new file mode 100644
index 0000000..34f2a0b
--- /dev/null
+++ b/src/pdflib/font/ft_font.h
@@ -0,0 +1,267 @@
+/*---------------------------------------------------------------------------*
+ | 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: ft_font.h,v 1.1 2008/10/17 06:10:43 scuri Exp $
+ *
+ * Header file for font handling
+ *
+ */
+
+#ifndef FT_FONT_H
+#define FT_FONT_H
+
+#include "pc_util.h"
+#include "pc_geom.h"
+#include "pc_file.h"
+#include "ft_cid.h"
+
+#define FNT_DEFAULT_WIDTH 250 /* some reasonable default */
+#define FNT_DEFAULT_CIDWIDTH 1000 /* for CID fonts */
+#define FNT_MISSING_WIDTH -1234567890 /* missing width value */
+
+#define FNT_DEFAULT_UNDERLINEWIDTH 50 /* default value of underlineThickness*/
+
+#define FNT_MAX_METRICS 2048.0 /* maximal font metrics value */
+
+/*
+ * these are the font weight values of Microsoft
+ * see LOGFONT structure member lfWeight
+ */
+#define FNT_FW_DONTCARE 0
+#define FNT_FW_THIN 100
+#define FNT_FW_EXTRALIGHT 200
+#define FNT_FW_ULTRALIGHT 200
+#define FNT_FW_LIGHT 300
+#define FNT_FW_NORMAL 400
+#define FNT_FW_REGULAR 400
+#define FNT_FW_MEDIUM 500
+#define FNT_FW_SEMIBOLD 600
+#define FNT_FW_DEMIBOLD 600
+#define FNT_FW_BOLD 700
+#define FNT_FW_EXTRABOLD 800
+#define FNT_FW_ULTRABOLD 800
+#define FNT_FW_HEAVY 900
+#define FNT_FW_BLACK 900
+
+/*
+ * these defaults are used when the stem value
+ * must be derived from the name (unused)
+ */
+#define FNT_STEMV_MIN 50 /* minimum StemV value */
+#define FNT_STEMV_LIGHT 71 /* light StemV value */
+#define FNT_STEMV_NORMAL 109 /* normal StemV value */
+#define FNT_STEMV_MEDIUM 125 /* mediumbold StemV value */
+#define FNT_STEMV_SEMIBOLD 135 /* semibold StemV value */
+#define FNT_STEMV_BOLD 165 /* bold StemV value */
+#define FNT_STEMV_EXTRABOLD 201 /* extrabold StemV value */
+#define FNT_STEMV_BLACK 241 /* black StemV value */
+
+/*
+ * Bit positions for the font descriptor flag
+ */
+#define FNT_FIXEDWIDTH (long) (1L<<0)
+#define FNT_SERIF (long) (1L<<1)
+#define FNT_SYMBOL (long) (1L<<2)
+#define FNT_SCRIPT (long) (1L<<3)
+#define FNT_ADOBESTANDARD (long) (1L<<5)
+#define FNT_ITALIC (long) (1L<<6)
+#define FNT_SMALLCAPS (long) (1L<<17)
+#define FNT_FORCEBOLD (long) (1L<<18)
+
+#define FNT_DEF_ITALICANGLE -12 /* default italic angle */
+#define FNT_MISSING_FONTVAL PDC_SHRT_MIN /* missing font value */
+
+/* start sequence of PFA files */
+#define FNT_PFA_STARTSEQU "%!PS"
+
+/* Font types */
+typedef enum
+{
+ fnt_Type0, /* Type0 fonts */
+ fnt_Type1, /* Type1 fonts */
+ fnt_MMType1, /* Multiple master fonts */
+ fnt_TrueType, /* TrueType fonts for 1-byte encoding */
+ fnt_CIDFontType2, /* TrueType fonts for 2-byte encoding */
+ fnt_Type1C, /* CFF PostScript fonts for 1-byte encoding */
+ fnt_CIDFontType0, /* OpenType fonts with CFF_ table for 2-byte encoding */
+ fnt_CIDFontType0C, /* CFF PostScript fonts for 2-byte encoding */
+ fnt_OpenType, /* OpenType fonts for 1-byte encoding */
+ fnt_OpenTypeC, /* OpenType fonts for 2-byte encoding */
+ fnt_Type3, /* Type3 fonts */
+ fnt_unknownType /* for initialization only */
+}
+fnt_fonttype;
+
+/* Font styles */
+typedef enum
+{
+ fnt_Normal,
+ fnt_Bold,
+ fnt_Italic,
+ fnt_BoldItalic
+}
+fnt_fontstyle;
+
+typedef struct fnt_interwidth_s fnt_interwidth;
+typedef struct fnt_interwidth4_s fnt_interwidth4;
+typedef struct fnt_glyphwidth_s fnt_glyphwidth;
+typedef struct fnt_font_metric_s fnt_font_metric;
+typedef struct fnt_font_s fnt_font;
+
+/* Code interval for glyph width */
+struct fnt_interwidth_s
+{
+ pdc_ushort startcode; /* start code of interval */
+ pdc_short width; /* width of glyphs in the code interval */
+};
+
+struct fnt_interwidth4_s
+{
+ int startcode; /* start UTF-32 Unicode of interval */
+ pdc_short width; /* width of glyphs in the code interval */
+};
+
+/* Code and Unicode for glyph width */
+struct fnt_glyphwidth_s
+{
+ pdc_ushort unicode; /* UTF-16 Unicode of glyph */
+ pdc_short code; /* builtin 8-bit code */
+ pdc_short width; /* glyph width */
+};
+
+
+/* Font metric exchange structure */
+struct fnt_font_metric_s
+{
+ char *name; /* font name (/FontName) */
+ pdc_ulong flags; /* font flags of font descriptor */
+ fnt_fonttype type; /* type of font */
+ int charcoll; /* supported CID character collection */
+ /* < 0: Halfwidth Latin-1 character */
+ /* font metric */
+ pdc_scalar 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 */
+
+ /* glyph widths */
+ int defwidth; /* default width */
+ int numwidths; /* number of entries in widths */
+ int *widths; /* ptr to glyph widths (enumerated by codes) */
+ int numinters; /* number of entries in ciw */
+ fnt_interwidth *ciw; /* ptr to code intervals for widths array */
+ int numglwidths; /* number of entries in glw */
+ fnt_glyphwidth *glw; /* ptr to glyph widths array */
+
+
+};
+
+/* Font exchange structure */
+struct fnt_font_s
+{
+ char *name; /* font name (/BaseFont or /Name or 'font_#') */
+ char *utf8name; /* UTF-8 encoded font name (maybe with BOM) */
+ char *filename; /* font file name */
+
+ fnt_font_metric m; /* name, type, flags, charcoll and metric */
+ pdc_bool isstdfont; /* is an incore font
+ * or standard CJK font in pdflib */
+ pdc_bool ishostfont; /* is an host font */
+ pdc_bool hasdescr; /* has font descriptor */
+ pdc_bool vertical; /* vertical writing mode */
+
+ pdc_ushort spacechar; /* code of space character depending on enc */
+ int spacewidth; /* width of space character */
+ int linegap; /* OpenType lineGap */
+ int weight; /* font weight value 0-1000 */
+
+ pdc_matrix matrix; /* Type3 font matrix */
+ pdc_rectangle bbox; /* Type3 font bounding box */
+ pdc_scalar fsscale; /* Type3 fontsize scaling */
+
+ pdc_bool issymbfont; /* is a symbol font */
+ pdc_encoding enc; /* font encoding shortcut */
+
+ int numglyphs; /* number of glyphs */
+ int numcodes; /* number of codes */
+
+ pdc_ushort *gid2code; /* mapping glyph ID -> [Uni]code or NULL */
+ pdc_ushort *code2gid; /* mapping [Uni]code -> glyph ID or NULL */
+ char *cmapname; /* CID CMap name */
+
+
+ /* font in memory */
+ pdc_bool embedded; /* embedded font */
+ char *imgname; /* name of virtual file containing *img */
+ size_t filelen; /* length of (uncompressed) font data */
+ pdc_byte *img; /* font (or CFF table) data */
+
+};
+
+/* font error numbers.
+*/
+enum
+{
+#define fnt_genNames 1
+#include "ft_generr.h"
+
+ FNT_E_dummy
+};
+
+/* ft_font.c */
+void fnt_register_errtab(pdc_core *pdc);
+void fnt_init_font(fnt_font *font);
+void fnt_cleanup_font(pdc_core *pdc, fnt_font *font);
+void fnt_cleanup_fontimg(pdc_core *pdc, fnt_font *font);
+int fnt_get_glyphid(int code, fnt_font *font);
+int fnt_get_code(int gid, fnt_font *font);
+int fnt_get_glyphwidth(int code, fnt_font *font);
+int fnt_get_pdf_fonttype_code(const char *typenam);
+const char *fnt_get_pdf_fonttype_name(int typecode);
+const char *fnt_get_pdf_fonttype_desc(int typecode);
+pdc_encodingvector *fnt_create_font_ev(pdc_core *pdc, fnt_font *font);
+int fnt_check_weight(int weight);
+int fnt_weightname2weight(const char *weightname);
+int fnt_stemv2weight(int stemv);
+const char *fnt_weight2weightname(int weight);
+int fnt_macfontstyle2weight(int macfontstyle);
+int fnt_weight2stemv(int weight);
+void fnt_font_logg_widths(pdc_core *pdc, fnt_font *font);
+void fnt_font_logg_protocol(pdc_core *pdc, fnt_font *font);
+
+/* ft_corefont.c */
+pdc_bool fnt_is_standard_font(const char *fontname);
+const char *fnt_get_abb_std_fontname(const char *fontname);
+void fnt_fill_font_metric(pdc_core *pdc, fnt_font *font, pdc_bool kerning,
+ const fnt_font_metric *metric);
+const fnt_font_metric *fnt_get_core_metric(const char *fontname);
+const char *fnt_get_abb_cjk_fontname(const char *fontname);
+int fnt_get_preinstalled_cidfont(const char *fontname,
+ const fnt_font_metric **fontmetric);
+const char **fnt_get_cid_widths_array(pdc_core *pdc, fnt_font *font);
+
+
+/* ft_type1.c */
+pdc_bool fnt_test_type1_font(pdc_core *pdc, const pdc_byte *img);
+pdc_bool fnt_get_type1_encoding(pdc_core *pdc, fnt_font *font, int glyphflags);
+
+#endif /* FT_FONT_H */