stringsize, stringwidth, stringnwidth, runestringsize, runestringwidth, runestringnwidth - graphical size of strings

#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 straightforward,
 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\c -encoded bytes.
 FILES
 /lib/font/bit " directory of fonts 
 SOURCE
 /sys/src/libdraw 
 "SEE ALSO"
 addpt (2),  cachechars (2),  subfont (2),  draw (2),  draw (3),  image (6),  font (6) 
 DIAGNOSTICS
Because strings are loaded dynamically, these routines may generate I/O
to the server and produce calls to the graphics error function.