Handle face-ignored-fonts

2 files changed, 42 insertions, 2 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index d7128960af7..2d8948f6a31 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,10 @@
+2010-05-28  Kenichi Handa  <handa@m17n.org>
+
+        * font.c (font_delete_unmatched): Check Vface_ignored_fonts.
+        Don't sheck SPEC if it is nil.
+        (font_list_entities): Call font_delete_unmatched if
+        Vface_ignored_fonts is non-nil.
+
 2010-05-27  Glenn Morris  <rgm@gnu.org>
 
         * Makefile.in, autodeps.mk, deps.mk, ns.mk:
diff --git a/src/font.c b/src/font.c
index 5ee51a6474c..e07dbc5dd16 100644
--- a/src/font.c
+++ b/src/font.c
@@ -2821,6 +2821,14 @@ font_clear_cache (f, cache, driver)
 
 static Lisp_Object scratch_font_spec, scratch_font_prefer;
 
+/* Check each font-entity in VEC, and return a list of font-entities
+   that satisfy this condition:
+     (1) matches with SPEC and SIZE if SPEC is not nil, and
+     (2) doesn't match with any regexps in Vface_ignored_fonts (if non-nil).
+*/
+
+extern Lisp_Object Vface_ignored_fonts;
+
 Lisp_Object
 font_delete_unmatched (vec, spec, size)
      Lisp_Object vec, spec;
@@ -2833,6 +2841,29 @@ font_delete_unmatched (vec, spec, size)
   for (val = Qnil, i = ASIZE (vec) - 1; i >= 0; i--)
     {
       entity = AREF (vec, i);
+      if (! NILP (Vface_ignored_fonts))
+        {
+          char name[256];
+          Lisp_Object tail, regexp;
+
+          if (font_unparse_xlfd (entity, 0, name, 256) >= 0)
+            {
+              for (tail = Vface_ignored_fonts; CONSP (tail); tail = XCDR (tail))
+                {
+                  regexp = XCAR (tail);
+                  if (STRINGP (regexp)
+                      && fast_c_string_match_ignore_case (regexp, name) >= 0)
+                    break;
+                }
+              if (CONSP (tail))
+                continue;
+            }
+        }
+      if (NILP (spec))
+        {
+          val = Fcons (entity, val);
+          continue;
+        }
       for (prop = FONT_WEIGHT_INDEX; prop < FONT_SIZE_INDEX; prop++)
         if (INTEGERP (AREF (spec, prop))
             && ((XINT (AREF (spec, prop)) >> 8)
@@ -2932,8 +2963,10 @@ font_list_entities (frame, spec)
             ASET (copy, FONT_TYPE_INDEX, driver_list->driver->type);
             XSETCDR (cache, Fcons (Fcons (copy, val), XCDR (cache)));
           }
-        if (ASIZE (val) > 0 && need_filtering)
-          val = font_delete_unmatched (val, spec, size);
+        if (ASIZE (val) > 0
+            && (need_filtering
+                || ! NILP (Vface_ignored_fonts)))
+          val = font_delete_unmatched (val, need_filtering ? spec : Qnil, size);
         if (ASIZE (val) > 0)
           list = Fcons (val, list);
       }