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(fontset_find_font): When a usable rfont_def is found

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in a fallback font-group, make it the first element of the group.
This commit is contained in:
Kenichi Handa 2009-06-25 08:02:34 +00:00
parent ca27c21bf2
commit a71ccf3ac8
2 changed files with 33 additions and 7 deletions
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5
src/ChangeLog
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@ -1,3 +1,8 @@
2009-06-25 <handa@m17n.org>
* fontset.c (fontset_find_font): When a usable rfont_def is found
in a fallback font-group, make it the first element of the group.
2009-06-24 Chong Yidong <cyd@stupidchicken.com>
* emacs-icon.h: Always define gnu_xpm_bits on GTK (bug#3671).

35
src/fontset.c
View file

@ -531,9 +531,10 @@ fontset_find_font (fontset, c, face, id, fallback)
int id, fallback;
{
Lisp_Object vec, font_group;
int i, charset_matched = -1;
int i, charset_matched = -1, found_index;
FRAME_PTR f = (FRAMEP (FONTSET_FRAME (fontset)))
? XFRAME (selected_frame) : XFRAME (FONTSET_FRAME (fontset));
Lisp_Object rfont_def;
font_group = fontset_get_font_group (fontset, fallback ? -1 : c);
if (! CONSP (font_group))
@ -553,9 +554,9 @@ fontset_find_font (fontset, c, face, id, fallback)
first. */
for (i = 0; i < ASIZE (vec); i++)
{
Lisp_Object rfont_def = AREF (vec, i);
Lisp_Object repertory;
rfont_def = AREF (vec, i);
if (NILP (rfont_def))
break;
repertory = FONT_DEF_REPERTORY (RFONT_DEF_FONT_DEF (rfont_def));
@ -571,18 +572,22 @@ fontset_find_font (fontset, c, face, id, fallback)
/* Find the first available font in the vector of RFONT-DEF. */
for (i = 0; i < ASIZE (vec); i++)
{
Lisp_Object rfont_def, font_def;
Lisp_Object font_def;
Lisp_Object font_entity, font_object;
if (i == 0 && charset_matched >= 0)
{
/* Try the element matching with the charset ID at first. */
rfont_def = AREF (vec, charset_matched);
found_index = charset_matched;
charset_matched = -1;
i--;
}
else if (i != charset_matched)
rfont_def = AREF (vec, i);
{
rfont_def = AREF (vec, i);
found_index = i;
}
else
continue;
@ -630,7 +635,7 @@ fontset_find_font (fontset, c, face, id, fallback)
}
if (font_has_char (f, font_object, c))
return rfont_def;
goto found;
/* Find a font already opened, maching with the current spec,
and supporting C. */
@ -644,7 +649,7 @@ fontset_find_font (fontset, c, face, id, fallback)
break;
font_object = RFONT_DEF_OBJECT (AREF (vec, i));
if (! NILP (font_object) && font_has_char (f, font_object, c))
return rfont_def;
goto found;
}
/* Find a font-entity with the current spec and supporting C. */
@ -661,6 +666,7 @@ fontset_find_font (fontset, c, face, id, fallback)
Qnil);
if (NILP (font_object))
continue;
found_index = i;
RFONT_DEF_NEW (rfont_def, font_def);
RFONT_DEF_SET_OBJECT (rfont_def, font_object);
RFONT_DEF_SET_SCORE (rfont_def, RFONT_DEF_SCORE (rfont_def));
@ -668,10 +674,12 @@ fontset_find_font (fontset, c, face, id, fallback)
for (j = 0; j < i; j++)
ASET (new_vec, j, AREF (vec, j));
ASET (new_vec, j, rfont_def);
found_index = j;
for (j++; j < ASIZE (new_vec); j++)
ASET (new_vec, j, AREF (vec, j - 1));
XSETCDR (font_group, new_vec);
return rfont_def;
vec = new_vec;
goto found;
}
/* No font of the current spec for C. Try the next spec. */
@ -680,6 +688,19 @@ fontset_find_font (fontset, c, face, id, fallback)
FONTSET_SET (fontset, make_number (c), make_number (0));
return Qnil;
found:
if (fallback && found_index > 0)
{
/* The order of fonts in the fallback font-group is not that
important, and it is better to move the found font to the
first of the group so that the next try will find it
quickly. */
for (i = found_index; i > 0; i--)
ASET (vec, i, AREF (vec, i - 1));
ASET (vec, 0, rfont_def);
}
return rfont_def;
}