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(fs_load_font): Before using a fontset, be sure to

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load the ASCII font of the fontset.  Size and height of a fontset
is set to the same as those of the ASCII font of the fontset.  Use
macro FONT_ENCODING_NOT_DECIDED.
This commit is contained in:
Kenichi Handa 1997-05-28 04:36:21 +00:00
parent 71c27002d8
commit afbee0fa30
1 changed files with 52 additions and 35 deletions
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87
src/fontset.c
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@ -149,11 +149,23 @@ fs_load_font (f, font_table, charset, fontname, fontset)
/* No way to get fontname. */
return 0;
/* If a fontset is specified and we have already loaded some fonts
in the fontset, we need a font of appropriate size to be used
with the fonts. */
if (fontsetp && fontsetp->size)
size = fontsetp->size * CHARSET_WIDTH (charset);
/* If CHARSET is not ASCII and FONTSET is specified, we must load a
font of appropriate size to be used with other fonts in this
fontset. */
if (charset != CHARSET_ASCII && fontsetp)
{
/* If we have not yet loaded ASCII font of FONTSET, we must load
it now to decided the size and height of this fontset. */
if (fontsetp->size == 0)
{
fontp = fs_load_font (f, font_table, CHARSET_ASCII, 0, fontset);
if (!fontp)
/* Any fontset should contain avairable ASCII. */
return 0;
}
/* Now we have surely decided the size of this fontset. */
size = fontsetp->size * CHARSET_WIDTH (charset);
}
fontp = (*load_font_func) (f, fontname, size);
@ -168,7 +180,7 @@ fs_load_font (f, font_table, charset, fontname, fontset)
not set by (*load_font_func). */
fontp->charset = charset;
if (fontp->encoding[1] != 4)
if (fontp->encoding[1] != FONT_ENCODING_NOT_DECIDED)
{
/* The font itself tells which code points to be used. Use this
encoding for all other charsets. */
@ -225,46 +237,51 @@ fs_load_font (f, font_table, charset, fontname, fontset)
}
}
/* If FONTSET is specified, setup various fields of it. */
if (fontsetp)
{
fontsetp->font_indexes[charset] = fontp->font_idx;
if (fontsetp->size == 0)
fontsetp->size = fontp->size / CHARSET_WIDTH (charset);
if (charset == CHARSET_ASCII
&& fontsetp->size != fontp->size)
if (charset == CHARSET_ASCII)
{
/* When loading ASCII font of the different size from the
size of FONTSET, we have to update the size of FONTSET.
Since changing the size of FONTSET may make some fonts
already loaded inappropriate to be used in FONTSET, we
must delete the record of such fonts. In that case, we
also have to calculate the height of FONTSET from the
remaining fonts. */
int i;
fontsetp->size = fontp->size;
fontsetp->height = fontp->height;
for (i = CHARSET_ASCII + 1; i <= MAX_CHARSET; i++)
/* Decide or change the size and height of this fontset. */
if (fontsetp->size == 0)
{
font_idx = fontsetp->font_indexes[i];
if (font_idx >= 0)
{
struct font_info *fontp2 = font_table + font_idx;
fontsetp->size = fontp->size;
fontsetp->height = fontp->height;
}
else if (fontsetp->size != fontp->size
|| fontsetp->height != fontp->height)
{
/* When loading ASCII font of the different size from
the size of FONTSET, we have to update the size of
FONTSET. Since changing the size of FONTSET may make
some fonts already loaded inappropriate to be used in
FONTSET, we must delete the record of such fonts. In
that case, we also have to calculate the height of
FONTSET from the remaining fonts. */
int i;
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. */
fontsetp->size = fontp->size;
fontsetp->height = fontp->height;
for (i = CHARSET_ASCII + 1; i <= MAX_CHARSET; i++)
{
font_idx = fontsetp->font_indexes[i];
if (font_idx >= 0)
{
struct font_info *fontp2 = font_table + font_idx;
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;
else if (fontsetp->height < fontp->height)
fontsetp->height = fontp->height;
#endif
}
}
}
}
else if (fontsetp->height < fontp->height)
fontsetp->height = fontp->height;
}
return fontp;