V9/jtools/man/man3/string.3

.TH STRING 9
.CT 2 comm_term
.SH NAME
string, defont, strwidth, getfont \- text and font operations
.SH SYNOPSIS
.B #include <jerq.h>
.PP
.B Point string(ft, s, b, p, f)
.B "Font *ft; char *s; Bitmap *b; Point p; Code f;
.PP
.B extern Font defont;
.PP
.B "int strwidth(ft, s) Font *ft; char *s;
.PP
.B "int fontheight(ft) Font *ft;
.PP
.B "int fontwidtht(ft) Font *ft;
.PP
.B "int fontnchars(ft) Font *ft;
.PP
.B "Font getfont(file) char *file;
.SH DESCRIPTION
.I String
draws the null-terminated string
.I s
using characters from font
.I ft
in Bitmap
.I b
at Point
.IR p ,
with Code
.IR f .
The return value is the location of the first character
.I after
.IR s ;
passed to another call to
.IR string ,
the two strings will be concatenated.
The characters are drawn such that the
.B origin
point of the bounding rectangle of a maximum height character
lies at
.IR p .
Therefore, a character drawn on the screen at (0,0)
will occupy the upper-leftmost character position on the screen.
.I String
draws characters as they are in the font.
No special action is taken for control characters such as tabs or newlines.
.PP
The global
.I defont
is the name of the standard font (not a pointer to it).
.PP
.I Strwidth
returns the width in pixels
of the null-terminated string
.IR s ,
interpreted in the Font
.IR *ft .
.PP
.I Fontheight
returns the height of a character in the Font
.IR *ft .
.PP
.I Fontwidth
returns the width of a character in the Font
.IR *ft .
.PP
.I Fontnchars
returns the number of characters in the Font
.IR *ft .
.PP
.I Getfont
opens and returns the font named by
.IR file .
Appropriate font names can be found with
.B xlsfonts
in X11, and by listing the directory
.B /usr/lib/fonts/fixedwidthfonts
for
.BR suntools .