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| author | K. Handa <handa@gnu.org> | 2016-01-02 16:36:21 +0900 |
|---|---|---|
| committer | K. Handa <handa@gnu.org> | 2016-01-26 22:58:07 +0900 |
| commit | 4a3db0f72955815c41114129129424c3b31ea3eb (patch) | |
| tree | 77c468bfdaaa6485274337263e5e4d3245545eaa /src/font.h | |
| parent | 60902756b0d794b16b9c1c67c4c40a3ac04d1c1b (diff) | |
| download | emacs-4a3db0f72955815c41114129129424c3b31ea3eb.tar.gz | |
support rendering of wider range of combinging characters by ftfont backend
* lisp/language/hebrew.el (hebrew-shape-gstring): If the font backend
supports rendering of combining characters, call
font-shape-gstring.
* src/font.c (Ffont_get): Handle `combining-capability' property.
(syms_of_font): New symbol ":combining-capability'.
* src/font.h (struct font_driver): New member combining_capability.
* src/ftfont.c: Include "category.h".
(ftfont_driver): Initialize combining_capability to
ftfont_combining_capability.
(ftfont_shape_by_flt): If OTF is null, try to find a suitable
FLT in advance.
(ftfont_combining_capability): New function.
(cherry picked from commit 536f48e9a2251b9e654ea974bd90ff2f40218753)
Diffstat (limited to 'src/font.h')
| -rw-r--r-- | src/font.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/font.h b/src/font.h index ba208e3c27d..36fe51ad319 100644 --- a/src/font.h +++ b/src/font.h @@ -757,6 +757,12 @@ struct font_driver bool (*cached_font_ok) (struct frame *f, Lisp_Object font_object, Lisp_Object entity); + + /* Optional + + Return non-nil if the driver support rendering of combining + characters for FONT according to Unicode combining class. */ + Lisp_Object (*combining_capability) (struct font *font); }; |