sync latest drw.{c,h} changes from dmenu

This commit is contained in:
Hiltjo Posthuma 2022-05-10 19:07:56 +02:00
parent cd0773cee9
commit d3f93c7c1a
2 changed files with 59 additions and 30 deletions

88
drw.c
View file

@ -251,12 +251,10 @@ drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int
int int
drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert) drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lpad, const char *text, int invert)
{ {
char buf[1024]; int i, ty, ellipsis_x = 0;
int ty; unsigned int tmpw, ew, ellipsis_w = 0, ellipsis_len;
unsigned int ew;
XftDraw *d = NULL; XftDraw *d = NULL;
Fnt *usedfont, *curfont, *nextfont; Fnt *usedfont, *curfont, *nextfont;
size_t i, len;
int utf8strlen, utf8charlen, render = x || y || w || h; int utf8strlen, utf8charlen, render = x || y || w || h;
long utf8codepoint = 0; long utf8codepoint = 0;
const char *utf8str; const char *utf8str;
@ -264,13 +262,17 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
FcPattern *fcpattern; FcPattern *fcpattern;
FcPattern *match; FcPattern *match;
XftResult result; XftResult result;
int charexists = 0; int charexists = 0, overflow = 0;
/* keep track of a couple codepoints for which we have no match. */
enum { nomatches_len = 64 };
static struct { long codepoint[nomatches_len]; unsigned int idx; } nomatches;
static unsigned int ellipsis_width = 0;
if (!drw || (render && !drw->scheme) || !text || !drw->fonts) if (!drw || (render && (!drw->scheme || !w)) || !text || !drw->fonts)
return 0; return 0;
if (!render) { if (!render) {
w = ~w; w = invert ? invert : ~invert;
} else { } else {
XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel); XSetForeground(drw->dpy, drw->gc, drw->scheme[invert ? ColFg : ColBg].pixel);
XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h);
@ -282,8 +284,10 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
} }
usedfont = drw->fonts; usedfont = drw->fonts;
if (!ellipsis_width && render)
ellipsis_width = drw_fontset_getwidth(drw, "...");
while (1) { while (1) {
utf8strlen = 0; ew = ellipsis_len = utf8strlen = 0;
utf8str = text; utf8str = text;
nextfont = NULL; nextfont = NULL;
while (*text) { while (*text) {
@ -291,9 +295,27 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
for (curfont = drw->fonts; curfont; curfont = curfont->next) { for (curfont = drw->fonts; curfont; curfont = curfont->next) {
charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint); charexists = charexists || XftCharExists(drw->dpy, curfont->xfont, utf8codepoint);
if (charexists) { if (charexists) {
if (curfont == usedfont) { drw_font_getexts(curfont, text, utf8charlen, &tmpw, NULL);
if (ew + ellipsis_width <= w) {
/* keep track where the ellipsis still fits */
ellipsis_x = x + ew;
ellipsis_w = w - ew;
ellipsis_len = utf8strlen;
}
if (ew + tmpw > w) {
overflow = 1;
/* called from drw_fontset_getwidth_clamp():
* it wants the width AFTER the overflow
*/
if (!render)
x += tmpw;
else
utf8strlen = ellipsis_len;
} else if (curfont == usedfont) {
utf8strlen += utf8charlen; utf8strlen += utf8charlen;
text += utf8charlen; text += utf8charlen;
ew += tmpw;
} else { } else {
nextfont = curfont; nextfont = curfont;
} }
@ -301,36 +323,25 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
} }
} }
if (!charexists || nextfont) if (overflow || !charexists || nextfont)
break; break;
else else
charexists = 0; charexists = 0;
} }
if (utf8strlen) { if (utf8strlen) {
drw_font_getexts(usedfont, utf8str, utf8strlen, &ew, NULL); if (render) {
/* shorten text if necessary */ ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
for (len = MIN(utf8strlen, sizeof(buf) - 1); len && ew > w; len--) XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
drw_font_getexts(usedfont, utf8str, len, &ew, NULL); usedfont->xfont, x, ty, (XftChar8 *)utf8str, utf8strlen);
if (len) {
memcpy(buf, utf8str, len);
buf[len] = '\0';
if (len < utf8strlen)
for (i = len; i && i > len - 3; buf[--i] = '.')
; /* NOP */
if (render) {
ty = y + (h - usedfont->h) / 2 + usedfont->xfont->ascent;
XftDrawStringUtf8(d, &drw->scheme[invert ? ColBg : ColFg],
usedfont->xfont, x, ty, (XftChar8 *)buf, len);
}
x += ew;
w -= ew;
} }
x += ew;
w -= ew;
} }
if (render && overflow)
drw_text(drw, ellipsis_x, y, ellipsis_w, h, 0, "...", invert);
if (!*text) { if (!*text || overflow) {
break; break;
} else if (nextfont) { } else if (nextfont) {
charexists = 0; charexists = 0;
@ -340,6 +351,12 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
* character must be drawn. */ * character must be drawn. */
charexists = 1; charexists = 1;
for (i = 0; i < nomatches_len; ++i) {
/* avoid calling XftFontMatch if we know we won't find a match */
if (utf8codepoint == nomatches.codepoint[i])
goto no_match;
}
fccharset = FcCharSetCreate(); fccharset = FcCharSetCreate();
FcCharSetAddChar(fccharset, utf8codepoint); FcCharSetAddChar(fccharset, utf8codepoint);
@ -368,6 +385,8 @@ drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, unsigned int lp
curfont->next = usedfont; curfont->next = usedfont;
} else { } else {
xfont_free(usedfont); xfont_free(usedfont);
nomatches.codepoint[++nomatches.idx % nomatches_len] = utf8codepoint;
no_match:
usedfont = drw->fonts; usedfont = drw->fonts;
} }
} }
@ -397,6 +416,15 @@ drw_fontset_getwidth(Drw *drw, const char *text)
return drw_text(drw, 0, 0, 0, 0, 0, text, 0); return drw_text(drw, 0, 0, 0, 0, 0, text, 0);
} }
unsigned int
drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n)
{
unsigned int tmp = 0;
if (drw && drw->fonts && text && n)
tmp = drw_text(drw, 0, 0, 0, 0, 0, text, n);
return MIN(n, tmp);
}
void void
drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h) drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h)
{ {

1
drw.h
View file

@ -35,6 +35,7 @@ void drw_free(Drw *drw);
Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount); Fnt *drw_fontset_create(Drw* drw, const char *fonts[], size_t fontcount);
void drw_fontset_free(Fnt* set); void drw_fontset_free(Fnt* set);
unsigned int drw_fontset_getwidth(Drw *drw, const char *text); unsigned int drw_fontset_getwidth(Drw *drw, const char *text);
unsigned int drw_fontset_getwidth_clamp(Drw *drw, const char *text, unsigned int n);
void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h); void drw_font_getexts(Fnt *font, const char *text, unsigned int len, unsigned int *w, unsigned int *h);
/* Colorscheme abstraction */ /* Colorscheme abstraction */