+
+ /* Find the first available font in the vector of RFONT-DEF. */
+ for (; i < ASIZE (vec); i++)
+ {
+ Lisp_Object font_def;
+
+ elt = AREF (vec, i);
+ if (NILP (elt))
+ continue;
+ /* ELT == [ FACE-ID FONT-INDEX FONT-DEF OPENED-FONT-NAME ] */
+ if (INTEGERP (AREF (elt, 1)) && XINT (AREF (elt, 1)) < 0)
+ /* We couldn't open this font last time. */
+ continue;
+
+ if (!face && NILP (AREF (elt, 1)))
+ /* We have not yet opened the font. */
+ return Qnil;
+
+ font_def = AREF (elt, 2);
+ /* FONT_DEF == [ FONT-SPEC ENCODING REPERTORY ] */
+ if (INTEGERP (AREF (font_def, 2)))
+ {
+ /* The repertory is specified by charset ID. */
+ struct charset *charset
+ = CHARSET_FROM_ID (XINT (AREF (font_def, 2)));
+
+ if (! CHAR_CHARSET_P (c, charset))
+ /* This font can't display C. */
+ continue;
+ }
+ else if (CHAR_TABLE_P (AREF (font_def, 2)))
+ {
+ /* The repertory is specified by a char table. */
+ if (NILP (CHAR_TABLE_REF (AREF (font_def, 2), c)))
+ /* This font can't display C. */
+ continue;
+ }
+ else
+ {
+ Lisp_Object slot;
+
+ if (! INTEGERP (AREF (elt, 1)))
+ {
+ /* We have not yet opened a font matching this spec.
+ Open the best matching font now and register the
+ repertory. */
+ struct font_info *font_info;
+
+ font_idx = load_font_get_repertory (f, face, font_def, fontset);
+ ASET (elt, 1, make_number (font_idx));
+ if (font_idx < 0)
+ /* This means that we couldn't find a font matching
+ FONT_DEF. */
+ continue;
+ font_info = (*get_font_info_func) (f, font_idx);
+ ASET (elt, 3, build_string (font_info->full_name));
+ }
+
+ slot = Fassq (AREF (elt, 1), FONTSET_REPERTORY (fontset));
+ xassert (CONSP (slot));
+ if (NILP (CHAR_TABLE_REF (XCDR (slot), c)))
+ /* This font can't display C. */
+ continue;
+ }
+
+ /* Now we have decided to use this font spec to display C. */
+ if (! INTEGERP (AREF (elt, 1)))
+ {
+ /* But not yet opened the best matching font. */
+ struct font_info *font_info;
+
+ font_idx = load_font_get_repertory (f, face, font_def, fontset);
+ ASET (elt, 1, make_number (font_idx));
+ if (font_idx < 0)
+ /* Can't open it. Try the other one. */
+ continue;
+ font_info = (*get_font_info_func) (f, font_idx);
+ ASET (elt, 3, build_string (font_info->full_name));
+ }
+
+ /* Now we have the opened font. */
+ return elt;
+ }
+
+ try_fallback:
+ if (! EQ (vec, FONTSET_FALLBACK (fontset)))
+ {
+ vec = FONTSET_FALLBACK (fontset);
+ if (VECTORP (vec))
+ goto retry;
+ if (EQ (vec, Qt))
+ goto try_default;
+ elt = FONTSET_FALLBACK (base_fontset);
+ if (! NILP (elt))
+ {
+ vec = Fmake_vector (make_number (ASIZE (elt) + 3), make_number (-1));
+ ASET (vec, 2, Qnil);
+ for (i = 0; i < ASIZE (elt); i++)
+ {
+ Lisp_Object tmp;
+
+ tmp = Fmake_vector (make_number (4), Qnil);
+ ASET (tmp, 2, AREF (elt, i));
+ ASET (vec, 3 + i, tmp);
+ }
+ FONTSET_FALLBACK (fontset) = vec;
+ goto retry;
+ }
+ /* Record that this fontset has no fallback fonts. */
+ FONTSET_FALLBACK (fontset) = Qt;
+ }
+
+ /* Try the default fontset. */
+ try_default:
+ if (! EQ (base_fontset, Vdefault_fontset))
+ {
+ if (NILP (FONTSET_DEFAULT (fontset)))
+ FONTSET_DEFAULT (fontset)
+ = make_fontset (FONTSET_FRAME (fontset), Qnil, Vdefault_fontset);
+ return fontset_font (FONTSET_DEFAULT (fontset), c, face, id);
+ }
+ return Qnil;
HCoop / bpt / emacs.git / blobdiff