99 lines
1.5 KiB
C
99 lines
1.5 KiB
C
#include <u.h>
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#include <libc.h>
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#include <draw.h>
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int
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_stringnwidth(Font *f, char *s, Rune *r, int len)
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{
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int wid, twid, n, max, try;
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enum { Max = 64 };
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ushort cbuf[Max];
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Rune rune, **rptr;
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char *subfontname, **sptr;
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Subfont *sf;
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if(s == nil){
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s = "";
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sptr = nil;
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}else
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sptr = &s;
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if(r == nil){
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r = L"";
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rptr = nil;
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}else
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rptr = &r;
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subfontname = nil;
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sf = nil;
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twid = 0;
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try = 0;
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while((*s || *r) && len > 0){
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max = Max;
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if(len < max)
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max = len;
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if(subfontname){
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freesubfont(sf);
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if((sf=_getsubfont(f->display, subfontname)) == nil){
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if(f->display == nil || f->display->defaultfont == nil || f->display->defaultfont == f)
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break;
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f = f->display->defaultfont;
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}
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}
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if((n = cachechars(f, sptr, rptr, cbuf, max, &wid, &subfontname)) <= 0){
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if(n == 0){
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if(++try > 10)
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break;
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continue;
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}
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if(*r)
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r++;
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else
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s += chartorune(&rune, s);
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len--;
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continue;
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}
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try = 0;
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agefont(f);
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twid += wid;
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len -= n;
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}
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freesubfont(sf);
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return twid;
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}
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int
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stringnwidth(Font *f, char *s, int len)
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{
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return _stringnwidth(f, s, nil, len);
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}
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int
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stringwidth(Font *f, char *s)
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{
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return _stringnwidth(f, s, nil, 1<<24);
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}
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Point
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stringsize(Font *f, char *s)
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{
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return Pt(_stringnwidth(f, s, nil, 1<<24), f->height);
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}
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int
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runestringnwidth(Font *f, Rune *r, int len)
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{
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return _stringnwidth(f, nil, r, len);
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}
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int
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runestringwidth(Font *f, Rune *r)
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{
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return _stringnwidth(f, nil, r, 1<<24);
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}
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Point
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runestringsize(Font *f, Rune *r)
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{
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return Pt(_stringnwidth(f, nil, r, 1<<24), f->height);
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}
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