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(syms_of_fontset): Intern Qfontset. Declare new lisp

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variable use-default-ascent.
(Vuse_default_ascent): New variable.
(Ffont_info): Return also the value of default-ascent of a font.
(fs_load_font): Disable updating fontsetp->height by
non-ASCII character sets.  This should be enabled when Emacs
supports variable height lines.
(fs_load_font, Fset_fontset_font): Bug fix to cope
with the change of charsets to symbols.
This commit is contained in:
Kenichi Handa 1997-02-27 07:52:23 +00:00
parent a20aa7210c
commit 6a7e6d80cb
1 changed files with 25 additions and 11 deletions
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36
src/fontset.c
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@ -33,6 +33,7 @@ Boston, MA 02111-1307, USA. */
Lisp_Object Vglobal_fontset_alist;
Lisp_Object Vfont_encoding_alist;
Lisp_Object Vuse_default_ascent;
/* We had better have our own strcasecmp function because some system
doesn't have it. */
@ -196,7 +197,6 @@ fs_load_font (f, font_table, charset, fontname, fontset)
for (tmp = XCONS (elt)->cdr; CONSP (tmp); tmp = XCONS (tmp)->cdr)
if (CONSP (XCONS (tmp)->car)
&& INTEGERP (XCONS (XCONS (tmp)->car)->car)
&& ((i = get_charset_id (XCONS (XCONS (tmp)->car)->car))
>= 0)
&& INTEGERP (XCONS (XCONS (tmp)->car)->cdr)
@ -251,8 +251,12 @@ fs_load_font (f, font_table, charset, fontname, fontset)
if (fontp2->size != fontp->size * CHARSET_WIDTH (i))
fontsetp->font_indexes[i] = FONT_NOT_OPENED;
/* The following code should be disabled until Emacs
supports variable height lines. */
#if 0
else if (fontsetp->height < fontp->height)
fontsetp->height = fontp->height;
#endif
}
}
}
@ -613,11 +617,12 @@ If FRAME is omitted or nil, all frames are affected.")
if (NILP (frame))
{
Lisp_Object fontset_info = Fassoc (fullname, Vglobal_fontset_alist);
Lisp_Object tem = Fassq (charset, XCONS (fontset_info)->cdr);
Lisp_Object tem = Fassq (charset_symbol, XCONS (fontset_info)->cdr);
if (NILP (tem))
XCONS (fontset_info)->cdr
= Fcons (Fcons (charset, fontname), XCONS (fontset_info)->cdr);
= Fcons (Fcons (charset_symbol, fontname),
XCONS (fontset_info)->cdr);
else
XCONS (tem)->cdr = fontname;
}
@ -636,13 +641,13 @@ If FRAME is omitted or nil, all frames are affected.")
struct fontset_info *fontsetp
= FRAME_FONTSET_DATA (f)->fontset_table[fontset];
if (fontsetp->fontname[XINT (charset)])
xfree (fontsetp->fontname[XINT (charset)]);
fontsetp->fontname[XINT (charset)]
if (fontsetp->fontname[charset])
xfree (fontsetp->fontname[charset]);
fontsetp->fontname[charset]
= (char *) xmalloc (XSTRING (fontname)->size + 1);
bcopy (XSTRING (fontname)->data, fontsetp->fontname[XINT (charset)],
bcopy (XSTRING (fontname)->data, fontsetp->fontname[charset],
XSTRING (fontname)->size + 1);
fontsetp->font_indexes[XINT (charset)] = FONT_NOT_OPENED;
fontsetp->font_indexes[charset] = FONT_NOT_OPENED;
if (charset == CHARSET_ASCII)
{
@ -667,7 +672,7 @@ DEFUN ("font-info", Ffont_info, Sfont_info, 1, 2, 0,
"Return information about a font named NAME on frame FRAME.\n\
If FRAME is omitted or nil, use the selected frame.\n\
The returned value is a vector of OPENED-NAME, FULL-NAME, CHARSET, SIZE,\n\
HEIGHT, BASELINE-OFFSET, and RELATIVE-COMPOSE,\n\
HEIGHT, BASELINE-OFFSET, RELATIVE-COMPOSE, and DEFAULT-ASCENT,\n\
where\n\
OPENED-NAME is the name used for opening the font,\n\
FULL-NAME is the full name of the font,\n\
@ -675,7 +680,8 @@ where\n\
SIZE is the minimum bound width of the font,\n\
HEIGHT is the height of the font,\n\
BASELINE-OFFSET is the upward offset pixels from ASCII baseline,\n\
RELATIVE-COMPOSE is the number controlling how to compose characters.\n\
RELATIVE-COMPOSE and DEFAULT-ASCENT are the numbers controlling\n\
how to compose characters.\n\
If the named font is not yet loaded, return nil.")
(name, frame)
Lisp_Object name, frame;
@ -702,7 +708,7 @@ If the named font is not yet loaded, return nil.")
if (!fontp)
return Qnil;
info = Fmake_vector (make_number (6), Qnil);
info = Fmake_vector (make_number (7), Qnil);
XVECTOR (info)->contents[0] = build_string (fontp->name);
XVECTOR (info)->contents[1] = build_string (fontp->full_name);
@ -711,6 +717,7 @@ If the named font is not yet loaded, return nil.")
XVECTOR (info)->contents[4] = make_number (fontp->height);
XVECTOR (info)->contents[5] = make_number (fontp->baseline_offset);
XVECTOR (info)->contents[6] = make_number (fontp->relative_compose);
XVECTOR (info)->contents[7] = make_number (fontp->default_ascent);
return info;
}
@ -790,6 +797,7 @@ syms_of_fontset ()
/* Window system initializer should have set proper functions. */
abort ();
Qfontset = intern ("fontset");
staticpro (&Qfontset);
Vcached_fontset_data = Qnil;
@ -813,6 +821,12 @@ ENCODING is one of the following integer values:\n\
3: code points 0xA020..0xFF7F are used.");
Vfont_encoding_alist = Qnil;
DEFVAR_LISP ("use-default-ascent", &Vuse_default_ascent,
"Char table of characters of which ascent values should be ignored.\n\
If an entry for a character is non-nil, the ascent value of the glyph\n\
is assumed to be what specified by _MULE_DEFAULT_ASCENT property of a font.");
Vuse_default_ascent = Qnil;
defsubr (&Squery_fontset);
defsubr (&Snew_fontset);
defsubr (&Sset_fontset_font);