STRINGSIZE(3) STRINGSIZE(3)
NAME
stringsize, stringwidth, stringnwidth, runestringsize,
runestringwidth, runestringnwidth - graphical size of
strings
SYNOPSIS
#include <u.h>
#include <libc.h>
#include <draw.h>
Point stringsize(Font *f, char *s)
int stringwidth(Font *f, char *s)
int stringnwidth(Font *f, char *s, int n)
Point runestringsize(Font *f, Rune *s)
int runestringwidth(Font *f, Rune *s)
int runestringnwidth(Font *f, Rune *s, int n)
DESCRIPTION
These routines compute the geometrical extent of character
strings when drawn on the display. The most straightfor-
ward, stringsize, returns a Point representing the vector
from upper left to lower right of the NUL-terminated string
s drawn in font f. Stringwidth returns just the x component.
Stringnwidth returns the width of the first n characters of
s.
The routines beginning with rune are analogous, but accept
an array of runes rather than UTF-encoded bytes.
FILES
/lib/font/bit directory of fonts
SOURCE
/usr/local/plan9/src/libdraw
SEE ALSO
addpt(3), cachechars(3), subfont(3), draw(3), draw(3),
image(7), font(7)
DIAGNOSTICS
Because strings are loaded dynamically, these routines may
generate I/O to the server and produce calls to the graphics
error function.
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