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Use character size scaling factors

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The bounding boxes for characters can be scaled using "cwscale" and "chscale"
to scale the width and height respectively.
This commit is contained in:
Eric Pruitt
2013-08-05 11:33:37 +02:00
committed by Roberto E. Vargas Caballero
parent aaee0e8b28
commit 7e3cff33ff
3 changed files with 17 additions and 8 deletions
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1
TODO
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@ -13,7 +13,6 @@ code & interface
drawing
-------
* add diacritics support to xdraws()
* add kerning configuration
* make the font cache simpler
* add hard width handling
* xft is reporting wrong width and height for characters

4
config.def.h
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@ -9,6 +9,10 @@ static char font[] = "Liberation Mono:pixelsize=12:antialias=false:autohint=fals
static int borderpx = 2;
static char shell[] = "/bin/sh";
/* Kerning / character bounding-box mutlipliers */
float cwscale = 1.0;
float chscale = 1.0;
/*
* word delimiter string
*

20
st.c
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@ -76,6 +76,7 @@ char *argv0;
#define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg)
#define IS_SET(flag) ((term.mode & (flag)) != 0)
#define TIMEDIFF(t1, t2) ((t1.tv_sec-t2.tv_sec)*1000 + (t1.tv_usec-t2.tv_usec)/1000)
#define CEIL(x) (((x) != (int) (x)) ? (x) + 1 : (x))
#define TRUECOLOR(r,g,b) (1 << 24 | (r) << 16 | (g) << 8 | (b))
#define IS_TRUECOL(x) (1 << 24 & (x))
@ -2777,8 +2778,8 @@ xloadfonts(char *fontstr, int fontsize) {
die("st: can't open font %s\n", fontstr);
/* Setting character width and height. */
xw.cw = dc.font.width;
xw.ch = dc.font.height;
xw.cw = CEIL(dc.font.width * cwscale);
xw.ch = CEIL(dc.font.height * chscale);
FcPatternDel(pattern, FC_SLANT);
FcPatternAddInteger(pattern, FC_SLANT, FC_SLANT_ITALIC);
@ -2960,6 +2961,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
Colour *fg, *bg, *temp, revfg, revbg, truefg, truebg;
XRenderColor colfg, colbg;
Rectangle r;
int oneatatime;
frcflags = FRC_NORMAL;
@ -3087,6 +3089,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
u8fs = s;
u8fblen = 0;
u8fl = 0;
oneatatime = font->width != xw.cw;
for(;;) {
u8c = s;
u8cblen = utf8decode(s, &u8char);
@ -3094,8 +3097,8 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
bytelen -= u8cblen;
doesexist = XftCharExists(xw.dpy, font->match, u8char);
if(!doesexist || bytelen <= 0) {
if(bytelen <= 0) {
if(oneatatime || !doesexist || bytelen <= 0) {
if(oneatatime || bytelen <= 0) {
if(doesexist) {
u8fl++;
u8fblen += u8cblen;
@ -3108,7 +3111,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
winy + font->ascent,
(FcChar8 *)u8fs,
u8fblen);
xp += font->width * u8fl;
xp += CEIL(font->width * cwscale * u8fl);
}
break;
@ -3117,8 +3120,11 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
u8fl++;
u8fblen += u8cblen;
}
if(doesexist)
if(doesexist) {
if (oneatatime);
continue;
break;
}
/* Search the font cache. */
for(i = 0; i < frclen; i++) {
@ -3178,7 +3184,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
xp, winy + frc[i].font->ascent,
(FcChar8 *)u8c, u8cblen);
xp += font->width;
xp += CEIL(font->width * cwscale);
}
/*