master f6d2ae766a1: Respect vertical centering preferences under Android

[Po Lu]

branch: master
commit f6d2ae766a13403b8bf6cfb31b0743c34493e246
Author: Po Lu <luangruo@yahoo.com>
Commit: Po Lu <luangruo@yahoo.com>

    Respect vertical centering preferences under Android
    
    * src/sfntfont.c (sfntfont_open): Match XLFD name against
    Vvertical_centering_font_regexp; if they agree, set
    font->vertical_centering.  Also set a suitable full name.
---
 src/sfntfont.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/sfntfont.c b/src/sfntfont.c
index 877f7a3830d..64dbffad03f 100644
--- a/src/sfntfont.c
+++ b/src/sfntfont.c
@@ -3313,6 +3313,21 @@ sfntfont_open (struct frame *f, Lisp_Object font_entity,
   open_fonts = font_info;
 #endif /* HAVE_MMAP */
 
+  /* Now ascertain if vertical centering is desired by matching the
+     font XLFD against vertical-centering-font-regexp.  */
+
+  if (!NILP (font->props[FONT_NAME_INDEX]))
+    font->vertical_centering
+      = (STRINGP (Vvertical_centering_font_regexp)
+        && (fast_string_match_ignore_case
+            (Vvertical_centering_font_regexp,
+             font->props[FONT_NAME_INDEX]) >= 0));
+
+  /* And set a reasonable full name, namely the name of the font
+     file.  */
+  font->props[FONT_FULLNAME_INDEX]
+    = DECODE_FILE (build_unibyte_string (desc->path));
+
   /* All done.  */
   unblock_input ();
   return font_object;