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<title>20.7 fm -- Font Manager interface</title>
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<H1><A NAME="SECTION0022700000000000000000">
20.7 <tt class="module">fm</tt> --
         <em>Font Manager</em> interface</A>
</H1>

<P>
<A NAME="module-fm"></A>
<p class="availability">Availability: <span
 class="platform">IRIX</span>.</p>

<P>
This module provides access to the IRIS <em>Font Manager</em> library.
<a id='l2h-5190' xml:id='l2h-5190'></a>
It is available only on Silicon Graphics machines.
See also: <em>4Sight User's Guide</em>, section 1, chapter 5: ``Using
the IRIS Font Manager.''

<P>
This is not yet a full interface to the IRIS Font Manager.
Among the unsupported features are: matrix operations; cache
operations; character operations (use string operations instead); some
details of font info; individual glyph metrics; and printer matching.

<P>
It supports the following operations:

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5178' xml:id='l2h-5178' class="function">init</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Initialization function.
Calls <tt class="cfunction">fminit()</tt>.
It is normally not necessary to call this function, since it is called
automatically the first time the <tt class="module">fm</tt> module is imported.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5179' xml:id='l2h-5179' class="function">findfont</tt></b>(</nobr></td>
  <td><var>fontname</var>)</td></tr></table></dt>
<dd>
Return a font handle object.
Calls <code>fmfindfont(<var>fontname</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5180' xml:id='l2h-5180' class="function">enumerate</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Returns a list of available font names.
This is an interface to <tt class="cfunction">fmenumerate()</tt>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5181' xml:id='l2h-5181' class="function">prstr</tt></b>(</nobr></td>
  <td><var>string</var>)</td></tr></table></dt>
<dd>
Render a string using the current font (see the <tt class="function">setfont()</tt> font
handle method below).
Calls <code>fmprstr(<var>string</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5182' xml:id='l2h-5182' class="function">setpath</tt></b>(</nobr></td>
  <td><var>string</var>)</td></tr></table></dt>
<dd>
Sets the font search path.
Calls <code>fmsetpath(<var>string</var>)</code>.
(XXX Does not work!?!)
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5183' xml:id='l2h-5183' class="function">fontpath</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Returns the current font search path.
</dl>

<P>
Font handle objects support the following operations:

<P>

<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5184' xml:id='l2h-5184' class="function">scalefont</tt></b>(</nobr></td>
  <td><var>factor</var>)</td></tr></table></dt>
<dd>
Returns a handle for a scaled version of this font.
Calls <code>fmscalefont(<var>fh</var>, <var>factor</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5185' xml:id='l2h-5185' class="function">setfont</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Makes this font the current font.
Note: the effect is undone silently when the font handle object is
deleted.
Calls <code>fmsetfont(<var>fh</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5186' xml:id='l2h-5186' class="function">getfontname</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Returns this font's name.
Calls <code>fmgetfontname(<var>fh</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5187' xml:id='l2h-5187' class="function">getcomment</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Returns the comment string associated with this font.
Raises an exception if there is none.
Calls <code>fmgetcomment(<var>fh</var>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5188' xml:id='l2h-5188' class="function">getfontinfo</tt></b>(</nobr></td>
  <td><var></var>)</td></tr></table></dt>
<dd>
Returns a tuple giving some pertinent data about this font.
This is an interface to <code>fmgetfontinfo()</code>.
The returned tuple contains the following numbers:
<code>(</code><var>printermatched</var>, <var>fixed_width</var>, <var>xorig</var>,
<var>yorig</var>, <var>xsize</var>, <var>ysize</var>, <var>height</var>,
<var>nglyphs</var><code>)</code>.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-5189' xml:id='l2h-5189' class="function">getstrwidth</tt></b>(</nobr></td>
  <td><var>string</var>)</td></tr></table></dt>
<dd>
Returns the width, in pixels, of <var>string</var> when drawn in this font.
Calls <code>fmgetstrwidth(<var>fh</var>, <var>string</var>)</code>.
</dl>

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<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
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