FLT
API(3m17n) The m17n Library FLT API(3m17n)
NAME
FLT_API - API provided by libm17n-flt.so.
Data Structures
struct MFLTGlyph
Type of information about a glyph.
struct MFLTGlyphAdjustment
Type of information about a glyph position adjustment.
struct MFLTGlyphString
Type of information about a glyph sequence.
struct MFLTOtfSpec
Type of specification of GSUB and GPOS OpenType tables.
struct MFLTFont
Type of font to be used by the FLT driver.
Typedefs
typedef struct _MFLT MFLT
Type of FLT (Font Layout Table).
Functions
MFLT * mflt_get (MSymbol name)
Return an FLT object that has a specified name.
MFLT * mflt_find (int c, MFLTFont *font)
Find an FLT suitable for the specified character and font.
const char * mflt_name (MFLT *flt)
Return the name of an FLT.
MCharTable * mflt_coverage (MFLT *flt)
Return a coverage of a FLT.
int mflt_run (MFLTGlyphString *gstring, int from, int to, MFLTFont *font, MFLT *flt)
Layout characters with an FLT.
MFLT * mdebug_dump_flt (MFLT *flt, int indent)
Dump a Font Layout Table.
void mflt_dump_gstring (MFLTGlyphString *gstring)
Dump an MFLTGlyphString.
Variables
int mflt_enable_new_feature
Flag to control several new OTF handling commands.
int(* mflt_iterate_otf_feature )(struct _MFLTFont *font, MFLTOtfSpec *spec, int from, int to, unsigned char *table)
MSymbol(* mflt_font_id )(struct _MFLTFont *font)
int(* mflt_try_otf )(struct _MFLTFont *font, MFLTOtfSpec *spec, MFLTGlyphString *gstring, int from, int to)
Detailed Description
API provided by libm17n-flt.so.
FLT support for a window system.
This section defines the m17n FLT API concerning character layouting facility using FLT (Font Layout Table). The format of FLT is described
in mdbFLT.
Data Structure Documentation
MFLTGlyph
FIELD DOCUMENTATION:
int MFLTGlyph::c
unsigned int MFLTGlyph::code
int MFLTGlyph::from
int MFLTGlyph::to
int MFLTGlyph::xadv
int MFLTGlyph::yadv
int MFLTGlyph::ascent
int MFLTGlyph::descent
int MFLTGlyph::lbearing
int MFLTGlyph::rbearing
int MFLTGlyph::xoff
int MFLTGlyph::yoff
unsigned MFLTGlyph::encoded
unsigned MFLTGlyph::measured
unsigned MFLTGlyph::adjusted
unsigned MFLTGlyph::internal
MFLTGlyphAdjustment
FIELD DOCUMENTATION:
int MFLTGlyphAdjustment::xadv
int MFLTGlyphAdjustment::yadv
int MFLTGlyphAdjustment::xoff
int MFLTGlyphAdjustment::yoff
short MFLTGlyphAdjustment::back
unsigned MFLTGlyphAdjustment::advance_is_absolute
unsigned MFLTGlyphAdjustment::set
MFLTGlyphString
FIELD DOCUMENTATION:
int MFLTGlyphString::glyph_size
(MFLTGlyph)'.
MFLTGlyph* MFLTGlyphString::glyphs
int MFLTGlyphString::allocated
int MFLTGlyphString::used
unsigned int MFLTGlyphString::r2l
MFLTOtfSpec
FIELD DOCUMENTATION:
MSymbol MFLTOtfSpec::sym
unsigned int MFLTOtfSpec::script
unsigned int MFLTOtfSpec::langsys
unsigned int* MFLTOtfSpec::features[2]
(1) The case of using this information for selecting which features to apply to a glyph string. If the array is NULL, apply no feature. If
the first element is 0xFFFFFFFF, apply all available features except for what appear in the second and following elements (if any).
Otherwise, apply all listed features.(2) The case of using this information for checking if a a font can be drived by a specific FLT. If the array is NULL, the font should not
have any features. Otherwize, the font should have all features before 0xFFFFFFFF element (if any) and should not have any features after
that element.
MFLTFont
FIELD DOCUMENTATION:
MSymbol MFLTFont::family
int MFLTFont::x_ppem
int MFLTFont::y_ppem
int(* MFLTFont::get_glyph_id)(struct _MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
int(* MFLTFont::get_metrics)(struct _MFLTFont *font, MFLTGlyphString *gstring, int from, int to)
int(* MFLTFont::check_otf)(struct _MFLTFont *font, MFLTOtfSpec *spec)
int(* MFLTFont::drive_otf)(struct _MFLTFont *font, MFLTOtfSpec *spec, MFLTGlyphString *in, int from, int to, MFLTGlyphString *out,
MFLTGlyphAdjustment *adjustment)
void* MFLTFont::internal
Typedef Documentation
typedef struct _MFLT MFLT
Type of FLT (Font Layout Table). The type MFLT is for an FLT object. Its internal structure is concealed from application programs.
Variable Documentation
int mflt_enable_new_feature
Flag to control several new OTF handling commands. If the variable mflt_enable_new_feature is nonzero, the function mflt_run() can drive a
Font Layout Table that contains the new OTF-related commands ':otf?' and/or OTF feature specification in a category table.
int(* mflt_iterate_otf_feature)(struct _MFLTFont *font, MFLTOtfSpec *spec, int from, int to, unsigned char *table)
MSymbol(* mflt_font_id)(struct _MFLTFont *font)
int(* mflt_try_otf)(struct _MFLTFont *font, MFLTOtfSpec *spec, MFLTGlyphString *gstring, int from, int to)
Author
Generated automatically by Doxygen for The m17n Library from the source code.
COPYRIGHT
Copyright (C) 2001 Information-technology Promotion Agency (IPA)
Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
<http://www.gnu.org/licenses/fdl.html>.
Version 1.6.2 12 Jan 2011 FLT API(3m17n)