Showing the changes to libdraw/stringwidth.c (1 of 9462 files). Show all
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| @@ -0,0 +1,96 @@ | ||
| 1 | +#include "lib9.h" | |
| 2 | +#include "draw.h" | |
| 3 | + | |
| 4 | +int | |
| 5 | +_stringnwidth(Font *f, char *s, Rune *r, int len) | |
| 6 | +{ | |
| 7 | + int wid, twid, n, max, l; | |
| 8 | + char *name; | |
| 9 | + enum { Max = 64 }; | |
| 10 | + ushort cbuf[Max]; | |
| 11 | + Rune rune, **rptr; | |
| 12 | + char *subfontname, **sptr; | |
| 13 | + Font *def; | |
| 14 | + static Rune rnull; | |
| 15 | + | |
| 16 | + if(s == nil){ | |
| 17 | + s = ""; | |
| 18 | + sptr = nil; | |
| 19 | + }else | |
| 20 | + sptr = &s; | |
| 21 | + if(r == nil){ | |
| 22 | + r = &rnull; | |
| 23 | + rptr = nil; | |
| 24 | + }else | |
| 25 | + rptr = &r; | |
| 26 | + twid = 0; | |
| 27 | + while(len>0 && (*s || *r)){ | |
| 28 | + max = Max; | |
| 29 | + if(len < max) | |
| 30 | + max = len; | |
| 31 | + n = 0; | |
| 32 | + while((l = cachechars(f, sptr, rptr, cbuf, max, &wid, &subfontname)) <= 0){ | |
| 33 | + if(++n > 10){ | |
| 34 | + if(*r) | |
| 35 | + rune = *r; | |
| 36 | + else | |
| 37 | + chartorune(&rune, s); | |
| 38 | + if(f->name != nil) | |
| 39 | + name = f->name; | |
| 40 | + else | |
| 41 | + name = "unnamed font"; | |
| 42 | + _drawprint(2, "stringwidth: bad character set for rune 0x%.4ux in %s\n", rune, name); | |
| 43 | + return twid; | |
| 44 | + } | |
| 45 | + if(subfontname){ | |
| 46 | + if(_getsubfont(f->display, subfontname) == 0){ | |
| 47 | + def = f->display->defaultfont; | |
| 48 | + if(def && f!=def) | |
| 49 | + f = def; | |
| 50 | + else | |
| 51 | + break; | |
| 52 | + } | |
| 53 | + } | |
| 54 | + } | |
| 55 | + agefont(f); | |
| 56 | + twid += wid; | |
| 57 | + len -= l; | |
| 58 | + } | |
| 59 | + return twid; | |
| 60 | +} | |
| 61 | + | |
| 62 | +int | |
| 63 | +stringnwidth(Font *f, char *s, int len) | |
| 64 | +{ | |
| 65 | + return _stringnwidth(f, s, nil, len); | |
| 66 | +} | |
| 67 | + | |
| 68 | +int | |
| 69 | +stringwidth(Font *f, char *s) | |
| 70 | +{ | |
| 71 | + return _stringnwidth(f, s, nil, 1<<24); | |
| 72 | +} | |
| 73 | + | |
| 74 | +Point | |
| 75 | +stringsize(Font *f, char *s) | |
| 76 | +{ | |
| 77 | + return Pt(_stringnwidth(f, s, nil, 1<<24), f->height); | |
| 78 | +} | |
| 79 | + | |
| 80 | +int | |
| 81 | +runestringnwidth(Font *f, Rune *r, int len) | |
| 82 | +{ | |
| 83 | + return _stringnwidth(f, nil, r, len); | |
| 84 | +} | |
| 85 | + | |
| 86 | +int | |
| 87 | +runestringwidth(Font *f, Rune *r) | |
| 88 | +{ | |
| 89 | + return _stringnwidth(f, nil, r, 1<<24); | |
| 90 | +} | |
| 91 | + | |
| 92 | +Point | |
| 93 | +runestringsize(Font *f, Rune *r) | |
| 94 | +{ | |
| 95 | + return Pt(_stringnwidth(f, nil, r, 1<<24), f->height); | |
| 96 | +} | |