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author | Owen Taylor <otaylor@redhat.com> | 2003-09-23 23:11:59 +0000 |
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committer | Owen Taylor <otaylor@src.gnome.org> | 2003-09-23 23:11:59 +0000 |
commit | 0f36f55ee0e7c9bf224fabbaf31843b3868f213c (patch) | |
tree | a8446856f4dce9b792f5e2ca1c3f9d25bbc40b76 /docs/tmpl/engines.sgml | |
parent | 8fa8e29cd61c802c6b100b3cca800784e3a9de20 (diff) | |
download | pango-0f36f55ee0e7c9bf224fabbaf31843b3868f213c.tar.gz |
Modules now declare a list of scripts that they cover instead of a list of
Tue Sep 23 18:03:57 2003 Owen Taylor <otaylor@redhat.com>
* pango/pango-engines.[ch] pango/pango-engines-private.h:
Modules now declare a list of scripts that they cover instead of a
list of code point ranges. Also, there is now a ->covers() virtual
function that allows a module to decide live whether the font
covers a particular codepoint; remove old get_coverage() method.
* pango/pango-fontset.[ch]: Add a foreach() function to
iterate over all the fonts in a fontset (with a true
return stopping iteration).
* pango/pango-context.c: Complete rewrite using script-run
information to improve language tags. Switch to an approach
where we handle one run at a time rather than computing
information for each character individually then later
breaking the result into runs.
* pango/pango-fontset.[ch]: Switch over to using
pango-impl-utils.h.
* modules/basic/basic-x.c pango/pangox-fontmap.c: Adapt to
the change from get_coverage => covers.
* pango/pango-modules.h pango/modules.c: Switch PangoMap
over to being based on script rather than being based
on codepoint. Remove the no longer needed pango_map_get_entry().
* pango/modules.c: Handle new script-based modules.
* pango/pango-fc-fontmap.c pango/pango-win32-fontmap.c
pango/pang-fontmap.[ch]: Add a shape_engine_type field
to PangoFontmapClass, pango_font_map_get_shape_engine_type();
this allows generic code to find a shaper for a particular
fontmap.
* pango/pango-script.[ch]: Add pango_script_get_sample_language(),
pango_language_includes_script(); functions for determining
the relationship between scripts and language.
* tools/gen-script-for-lang.c: Modify to spit out a
useful table.
* pango/pango-script-lang-table.h: Version of table
generated from current fontconfig data.
* pango/pangox.c: Remove complicated code to compute
coverages; no longer useful now that we just have
the basic shaper as a legacy thing.
* modules/*/*.c: Adapt to identifying shape engines
by language range.
* modules/thai/thai-fc.c modules/thai/thai-shaper.[ch]:
Remove now unused "has_glyph" function and XTIS support.
* modules/thai/thai-fc.c: Handle non-Thai characters
as well, since the Thai module now gets spaces,
punctuation, and so forth.
Diffstat (limited to 'docs/tmpl/engines.sgml')
-rw-r--r-- | docs/tmpl/engines.sgml | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/docs/tmpl/engines.sgml b/docs/tmpl/engines.sgml index 754540ce..fb7fdfd2 100644 --- a/docs/tmpl/engines.sgml +++ b/docs/tmpl/engines.sgml @@ -37,23 +37,20 @@ engine. It contains the following fields: @id: a unique string ID for the engine. @engine_type: a string identifying the engine type. @render_type: a string identifying the render type. -@ranges: a pointer to an array of #PangoEngineRange - structures. Each structure contains information - about a range of Unicode code points that - this engine handles. -@n_ranges: the number of elements in <structfield>ranges</structfield>. +@scripts: +@n_scripts: -<!-- ##### STRUCT PangoEngineRange ##### --> +<!-- ##### STRUCT PangoEngineScriptInfo ##### --> <para> -The PangoEngineRange structure contains -information about a range of Unicode code -points. It contains the following fields: +The PangoEngineScriptInfo structure contains +information about how the shaper covers a particular +script. </para> -@start: the first code point in the range. -@end: the last code point for the range. +@script: a #PangoScript. The value %PANGO_SCRIPT_COMMON has + the special meaning here of "all scripts" @langs: a semicolon separated list of languages that this - engine handles for this range. This may be empty, + engine handles for this script. This may be empty, in which case the engine is saying that it is a fallback choice for all languages for this range, but should not be used if another engine |