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Implement italic font support.

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This commit is contained in:
Christoph Lohmann 2012-09-05 21:48:26 +02:00
parent 56c551e4f4
commit 462a966ee2
4 changed files with 32 additions and 19 deletions
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1
TODO
View file

@ -4,7 +4,6 @@ vt emulation
* implement BCE right
* color definition in CSI
* implement CSI parsing
* implement real italic
* make the keypad keys really work
* kf0 .. kf44
* kend, kel, kent, kfnd, ked, kext

2
config.def.h
View file

@ -1,6 +1,8 @@
#define FONT "-*-*-medium-r-*-*-*-120-75-75-*-60-*-*"
#define BOLDFONT "-*-*-bold-r-*-*-*-120-75-75-*-60-*-*"
/* If italic is not availbel, fall back to bold. */
#define ITALICFONT "-*-*-medium-o-*-*-*-120-75-75-*-60-*-*," BOLDFONT
/* Space in pixels around the terminal buffer */
#define BORDER 2

30
st.c
View file

@ -76,6 +76,7 @@ enum glyph_attribute {
ATTR_UNDERLINE = 2,
ATTR_BOLD = 4,
ATTR_GFX = 8,
ATTR_ITALIC = 16,
};
enum cursor_movement {
@ -238,7 +239,7 @@ typedef struct {
short lbearing;
short rbearing;
XFontSet set;
} font, bfont;
} font, bfont, ifont;
} DC;
static void die(const char*, ...);
@ -1122,8 +1123,8 @@ tsetattr(int *attr, int l) {
case 1:
term.c.attr.mode |= ATTR_BOLD;
break;
case 3: /* enter standout (highlight) mode TODO: make it italic */
term.c.attr.mode |= ATTR_REVERSE;
case 3: /* enter standout (highlight) */
term.c.attr.mode |= ATTR_ITALIC;
break;
case 4:
term.c.attr.mode |= ATTR_UNDERLINE;
@ -1134,8 +1135,8 @@ tsetattr(int *attr, int l) {
case 22:
term.c.attr.mode &= ~ATTR_BOLD;
break;
case 23: /* leave standout (highlight) mode TODO: make it italic */
term.c.attr.mode &= ~ATTR_REVERSE;
case 23: /* leave standout (highlight) mode */
term.c.attr.mode &= ~ATTR_ITALIC;
break;
case 24:
term.c.attr.mode &= ~ATTR_UNDERLINE;
@ -1886,14 +1887,20 @@ xgetfontinfo(XFontSet set, int *ascent, int *descent, short *lbearing, short *rb
}
void
initfonts(char *fontstr, char *bfontstr) {
if((dc.font.set = xinitfont(fontstr)) == NULL ||
(dc.bfont.set = xinitfont(bfontstr)) == NULL)
die("Can't load font %s\n", dc.font.set ? BOLDFONT : FONT);
initfonts(char *fontstr, char *bfontstr, char *ifontstr) {
if((dc.font.set = xinitfont(fontstr)) == NULL)
die("Can't load font %s\n", fontstr);
if((dc.bfont.set = xinitfont(bfontstr)) == NULL)
die("Can't load bfont %s\n", bfontstr);
if((dc.ifont.set = xinitfont(ifontstr)) == NULL)
die("Can't load ifont %s\n", ifontstr);
xgetfontinfo(dc.font.set, &dc.font.ascent, &dc.font.descent,
&dc.font.lbearing, &dc.font.rbearing);
xgetfontinfo(dc.bfont.set, &dc.bfont.ascent, &dc.bfont.descent,
&dc.bfont.lbearing, &dc.bfont.rbearing);
xgetfontinfo(dc.ifont.set, &dc.ifont.ascent, &dc.ifont.descent,
&dc.ifont.lbearing, &dc.ifont.rbearing);
}
void
@ -1927,7 +1934,7 @@ xinit(void) {
}
/* font */
initfonts(FONT, BOLDFONT);
initfonts(FONT, BOLDFONT, ITALICFONT);
/* XXX: Assuming same size for bold font */
xw.cw = dc.font.rbearing - dc.font.lbearing;
@ -2002,6 +2009,9 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
fontset = dc.bfont.set;
}
if(base.mode & ATTR_ITALIC)
fontset = dc.ifont.set;
XSetBackground(xw.dpy, dc.gc, dc.col[bg]);
XSetForeground(xw.dpy, dc.gc, dc.col[fg]);

10
st.info
View file

@ -83,15 +83,16 @@ st| simpleterm,
op=\E[39;49m,
pairs#64,
rc=\E8,
rs1=\Ec,
rs2=\E[4l\E>,
rev=\E[7m,
ri=\EM,
ritm=\E[23m,
rmacs=\E(B,
rmcup=\E[?1049l,
rmkx=\E>,
# rmkx=\E>,
rmso=\E[23m,
rmul=\E[m,
rs1=\Ec,
rs2=\E[4l\E>,
sc=\E7,
setab=\E[4%p1%dm,
setaf=\E[3%p1%dm,
@ -99,9 +100,10 @@ st| simpleterm,
setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
sgr0=\E[0m,
sgr=%?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m,
sitm=\E[3m,
smacs=\E(0,
smcup=\E[?1049h,
smkx=\E=,
# smkx=\E=,
smso=\E[3m,
smul=\E[4m,
tbc=\E[3g,