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Do not use color when font attributes are supported

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If fontconfig gives us a font without the attributes we asked for,
display an alternative color instead.
This commit is contained in:
Quentin Rameau 2016-10-22 16:36:10 +02:00
parent 7854fde1ff
commit 8c99915608
2 changed files with 35 additions and 13 deletions
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8
config.def.h
View file

@ -138,12 +138,10 @@ static unsigned int mousefg = 7;
static unsigned int mousebg = 0;
/*
* Colors used, when the specific fg == defaultfg. So in reverse mode this
* will reverse too. Another logic would only make the simple feature too
* complex.
* Color used to display font attributes when fontconfig selected a font which
* doesn't match the ones requested.
*/
static unsigned int defaultitalic = 11;
static unsigned int defaultunderline = 7;
static unsigned int defaultattr = 11;
/*
* Internal mouse shortcuts.

40
st.c
View file

@ -354,6 +354,8 @@ typedef struct {
int width;
int ascent;
int descent;
int badslant;
int badweight;
short lbearing;
short rbearing;
XftFont *match;
@ -3373,6 +3375,7 @@ xloadfont(Font *f, FcPattern *pattern)
FcPattern *match;
FcResult result;
XGlyphInfo extents;
int wantattr, haveattr;
match = XftFontMatch(xw.dpy, xw.scr, pattern, &result);
if (!match)
@ -3383,6 +3386,28 @@ xloadfont(Font *f, FcPattern *pattern)
return 1;
}
if ((XftPatternGetInteger(pattern, "slant", 0, &wantattr) ==
XftResultMatch)) {
/*
* Check if xft was unable to find a font with the appropriate
* slant but gave us one anyway. Try to mitigate.
*/
if ((XftPatternGetInteger(f->match->pattern, "slant", 0,
&haveattr) != XftResultMatch) || haveattr < wantattr) {
f->badslant = 1;
fputs("st: font slant does not match\n", stderr);
}
}
if ((XftPatternGetInteger(pattern, "weight", 0, &wantattr) ==
XftResultMatch)) {
if ((XftPatternGetInteger(f->match->pattern, "weight", 0,
&haveattr) != XftResultMatch) || haveattr != wantattr) {
f->badweight = 1;
fputs("st: font weight does not match\n", stderr);
}
}
XftTextExtentsUtf8(xw.dpy, f->match,
(const FcChar8 *) ascii_printable,
strlen(ascii_printable), &extents);
@ -3780,14 +3805,13 @@ xdrawglyphfontspecs(const XftGlyphFontSpec *specs, Glyph base, int len, int x, i
XRenderColor colfg, colbg;
XRectangle r;
/* Determine foreground and background colors based on mode. */
if (base.fg == defaultfg) {
if (base.mode & ATTR_ITALIC)
base.fg = defaultitalic;
else if ((base.mode & ATTR_ITALIC) && (base.mode & ATTR_BOLD))
base.fg = defaultitalic;
else if (base.mode & ATTR_UNDERLINE)
base.fg = defaultunderline;
/* Fallback on color display for attributes not supported by the font */
if (base.mode & ATTR_ITALIC && base.mode & ATTR_BOLD) {
if (dc.ibfont.badslant || dc.ibfont.badweight)
base.fg = defaultattr;
} else if ((base.mode & ATTR_ITALIC && dc.ifont.badslant) ||
(base.mode & ATTR_BOLD && dc.bfont.badweight)) {
base.fg = defaultattr;
}
if (IS_TRUECOL(base.fg)) {