X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/a0b5606ec769968b10c765f8ff50f312d691ef62..09af58633c2a83b61dee86bcf3794122b101671a:/src/fontset.c

diff --git a/src/fontset.c b/src/fontset.c
index 0bf716bf1b..b9f6de33eb 100644
--- a/src/fontset.c
+++ b/src/fontset.c
@@ -39,17 +39,10 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "intervals.h"
 #include "fontset.h"
 #include "window.h"
-#ifdef HAVE_X_WINDOWS
-#include "xterm.h"
-#endif
-#ifdef HAVE_NTGUI
-#include "w32term.h"
-#endif
-#ifdef HAVE_NS
-#include "nsterm.h"
-#endif
+#ifdef HAVE_WINDOW_SYSTEM
+#include TERM_HEADER
+#endif /* HAVE_WINDOW_SYSTEM */
 #include "termhooks.h"
-
 #include "font.h"
 
 /* FONTSET
@@ -906,45 +899,36 @@ free_face_fontset (struct frame *f, struct face *face)
   face->fontset = -1;
 }
 
-
-#if 0
-/* Return true if FACE is suitable for displaying character C.
-   Called from the macro FACE_SUITABLE_FOR_CHAR_P
-   when C is not an ASCII character.  */
-
-bool
-face_suitable_for_char_p (struct face *face, int c)
-{
-  Lisp_Object fontset, rfont_def;
-
-  fontset = FONTSET_FROM_ID (face->fontset);
-  rfont_def = fontset_font (fontset, c, NULL, -1);
-  return (VECTORP (rfont_def)
-	  && INTEGERP (RFONT_DEF_FACE (rfont_def))
-	  && face->id == XINT (RFONT_DEF_FACE (rfont_def)));
-}
-#endif
-
-
-/* Return ID of face suitable for displaying character C on frame F.
-   FACE must be realized for ASCII characters in advance.  Called from
-   the macro FACE_FOR_CHAR.  */
+/* Return ID of face suitable for displaying character C at buffer position
+   POS on frame F.  FACE must be realized for ASCII characters in advance.
+   Called from the macro FACE_FOR_CHAR.  */
 
 int
-face_for_char (struct frame *f, struct face *face, int c, int pos, Lisp_Object object)
+face_for_char (struct frame *f, struct face *face, int c,
+	       ptrdiff_t pos, Lisp_Object object)
 {
   Lisp_Object fontset, rfont_def, charset;
   int face_id;
   int id;
 
-  /* If face->fontset is negative (that happens when no font is found
-     for face), just return face->ascii_face because we can't do
-     anything.  Perhaps, we should fix the callers to assure
-     that face->fontset is always valid.  */
-  if (ASCII_CHAR_P (c) || face->fontset < 0)
+  eassert (fontset_id_valid_p (face->fontset));
+
+  if (ASCII_CHAR_P (c) || CHAR_BYTE8_P (c))
     return face->ascii_face->id;
 
-  eassert (fontset_id_valid_p (face->fontset));
+#ifdef HAVE_NS
+  if (face->font)
+    {
+      /* Fonts often have characters in other scripts, like symbol, even if they
+         don't match script: symbol.  So check if the character is present
+         in the current face first.  Only enable for NS for now, but should
+         perhaps be general?  */
+      Lisp_Object font_object;
+      XSETFONT (font_object, face->font);
+      if (font_has_char (f, font_object, c)) return face->id;
+    }
+#endif
+
   fontset = FONTSET_FROM_ID (face->fontset);
   eassert (!BASE_FONTSET_P (fontset));
 
@@ -999,7 +983,7 @@ face_for_char (struct frame *f, struct face *face, int c, int pos, Lisp_Object o
 
 
 Lisp_Object
-font_for_char (struct face *face, int c, int pos, Lisp_Object object)
+font_for_char (struct face *face, int c, ptrdiff_t pos, Lisp_Object object)
 {
   Lisp_Object fontset, rfont_def, charset;
   int id;
@@ -1869,7 +1853,7 @@ DEFUN ("internal-char-font", Finternal_char_font, Sinternal_char_font, 1, 2, 0,
 	return Qnil;
       w = XWINDOW (window);
       f = XFRAME (w->frame);
-      face_id = face_at_buffer_position (w, pos, -1, -1, &dummy,
+      face_id = face_at_buffer_position (w, pos, &dummy,
 					 pos + 100, 0, -1);
     }
   if (! CHAR_VALID_P (c))