116 lines
4.5 KiB
HTML
116 lines
4.5 KiB
HTML
<head>
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<title>stringsize(3) - Plan 9 from User Space</title>
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<meta content="text/html; charset=utf-8" http-equiv=Content-Type>
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</head>
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<body bgcolor=#ffffff>
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<table border=0 cellpadding=0 cellspacing=0 width=100%>
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<tr height=10><td>
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<tr><td width=20><td>
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<tr><td width=20><td><b>STRINGSIZE(3)</b><td align=right><b>STRINGSIZE(3)</b>
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<tr><td width=20><td colspan=2>
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<br>
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<p><font size=+1><b>NAME </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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stringsize, stringwidth, stringnwidth, runestringsize, runestringwidth,
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runestringnwidth – graphical size of strings<br>
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</table>
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<p><font size=+1><b>SYNOPSIS </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>#include <u.h><br>
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#include <libc.h><br>
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#include <draw.h><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>Point stringsize(Font *f, char *s)<br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>int stringwidth(Font *f, char *s)<br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>int stringnwidth(Font *f, char *s, int n)<br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>Point runestringsize(Font *f, Rune *s)<br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>int runestringwidth(Font *f, Rune *s)<br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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</font></tt>
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<tt><font size=+1>int runestringnwidth(Font *f, Rune *s, int n)<br>
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</font></tt>
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</table>
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<p><font size=+1><b>DESCRIPTION </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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These routines compute the geometrical extent of character strings
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when drawn on the display. The most straightforward, <tt><font size=+1>stringsize</font></tt>,
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returns a <tt><font size=+1>Point</font></tt> representing the vector from upper left to lower
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right of the NUL-terminated string <i>s</i> drawn in font <i>f</i>. <tt><font size=+1>Stringwidth</font></tt>
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returns just the <i>x</i> component.
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<tt><font size=+1>Stringnwidth</font></tt> returns the width of the first <i>n</i> characters of <i>s</i>.
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<table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
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The routines beginning with <tt><font size=+1>rune</font></tt> are analogous, but accept an
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array of runes rather than UTF-encoded bytes.<br>
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</table>
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<p><font size=+1><b>FILES </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>/lib/font/bit </font></tt> directory of fonts<br>
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</table>
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<p><font size=+1><b>SOURCE </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<tt><font size=+1>/usr/local/plan9/src/libdraw<br>
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</font></tt>
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</table>
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<p><font size=+1><b>SEE ALSO </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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<a href="../man3/addpt.html"><i>addpt</i>(3)</a>, <a href="../man3/cachechars.html"><i>cachechars</i>(3)</a>, <a href="../man3/subfont.html"><i>subfont</i>(3)</a>, <a href="../man3/draw.html"><i>draw</i>(3)</a>, <a href="../man3/draw.html"><i>draw</i>(3)</a>, <a href="../man7/image.html"><i>image</i>(7)</a>,
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<a href="../man7/font.html"><i>font</i>(7)</a><br>
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</table>
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<p><font size=+1><b>DIAGNOSTICS </b></font><br>
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<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
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Because strings are loaded dynamically, these routines may generate
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I/O to the server and produce calls to the graphics error function.<br>
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</table>
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<td width=20>
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<tr height=20><td>
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</table>
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<!-- TRAILER -->
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<table border=0 cellpadding=0 cellspacing=0 width=100%>
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<tr height=15><td width=10><td><td width=10>
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<tr><td><td>
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<center>
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<a href="../../"><img src="../../dist/spaceglenda100.png" alt="Space Glenda" border=1></a>
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</center>
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</table>
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<!-- TRAILER -->
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</body></html>
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