.\" Copyright (C) 2001 Information-technology Promotion Agency (IPA)
.\" Copyright (C) 2001-2009
.\"   National Institute of Advanced Industrial Science and Technology (AIST)
.\" This file is part of the m17n library documentation.
.\" Permission is granted to copy, distribute and/or modify this document
.\" under the terms of the GNU Free Documentation License, Version 1.2 or
.\" any later version published by the Free Software Foundation; with no
.\" Invariant Section, no Front-Cover Texts,
.\" and no Back-Cover Texts.  A copy of the license is included in the
.\" appendix entitled "GNU Free Documentation License".
.TH "mdraw_default_line_break" 3m17n "15 Oct 2009" "" "Version 1.5.5" "" "The m17n Library" \" -*- nroff -*-
.ad l
.nh
.SH NAME
mdraw_default_line_break \- Calculate a line breaking position. 


.SH SYNOPSIS
int
\fBmdraw_default_line_break\fP (\fBMText\fP *
\fImt\fP, int
\fIpos\fP, int
\fIfrom\fP, int
\fIto\fP, int
\fIline\fP, int
\fIy\fP)


.SH DESCRIPTION
Calculate a line breaking position. 
.PP
The function
.ft B
mdraw_default_line_break()
.ft R
calculates a line breaking position based on the line number
.ft B
line
.ft R
and the coordinate
.ft B
y\fP,
.ft R
when a line is too long to fit within the width limit.
.ft B
pos
.ft R
is the position of the character next to the last one that fits within the limit.
.ft B
from
.ft R
is the position of the first character of the line, and
.ft B
to
.ft R
is the position of the last character displayed on the line if there were not width limit.
.ft B
line
.ft R
and
.ft B
y
.ft R
are reset to 0 when a line is broken by a newline character, and incremented each time when a long line is broken because of the width limit.
.PP
.SH RETURN VALUE
.PP
.RS 4
This function returns a character position to break the line. 
.RE
.PP

.SH COPYRIGHT
Copyright (C) 2001 Information\-technology Promotion Agency (IPA)
.br
Copyright (C) 2001\-2009 National Institute of Advanced Industrial Science and Technology (AIST)
.br
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License 
<http://www.gnu.org/licenses/fdl.html>.
