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150 lines
6.0 KiB
HTML
150 lines
6.0 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Loads a font</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.ps-findfont" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ps_findfont</h1>
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<p class="verinfo">(PECL ps >= 1.1.0)</p><p class="refpurpose"><span class="refname">ps_findfont</span> — <span class="dc-title">Loads a font</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ps-findfont-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>ps_findfont</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$psdoc</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$fontname</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$encoding</code></span>
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[, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$embed</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span>
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] ) : <span class="type">int</span></div>
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<p class="para rdfs-comment">
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Loads a font for later use. Before text is output with a loaded font it
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must be set with <span class="function"><a href="ps_setfont.html" class="function">ps_setfont()</a></span>. This function needs the
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adobe font metric file in order to calculate the space used up by the
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characters. A font which is loaded within a page will only be available on
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that page. Fonts which are to be used in the complete document have to be
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loaded before the first call of <span class="function"><a href="ps_begin_page.html" class="function">ps_begin_page()</a></span>. Calling
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<span class="function"><strong>ps_findfont()</strong></span> between pages will make that font
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available for all following pages.
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</p>
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<p class="para">
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The name of the afm file must be
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<code class="parameter">fontname</code><em>.afm</em>. If the font
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shall be embedded the file
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<code class="parameter">fontname</code><em>.pfb</em> containing
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the font outline must be present as well.
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</p>
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<p class="para">
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Calling <span class="function"><strong>ps_findfont()</strong></span> before the first page requires
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to output the postscript header which includes the BoundingBox for
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the whole document. Usually the BoundingBox is set with the first call
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of <span class="function"><a href="ps_begin_page.html" class="function">ps_begin_page()</a></span> which now comes after
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<span class="function"><strong>ps_findfont()</strong></span>. Consequently the BoundingBox has not
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been set and a warning will be issued when <span class="function"><strong>ps_findfont()</strong></span>
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is called. In order to prevent this situation, one should call
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<span class="function"><a href="ps_set_parameter.html" class="function">ps_set_parameter()</a></span> to set the BoundingBox before
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<span class="function"><strong>ps_findfont()</strong></span> is called.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ps-findfont-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">psdoc</code></dt>
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<dd>
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<p class="para">
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Resource identifier of the postscript file
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as returned by <span class="function"><a href="ps_new.html" class="function">ps_new()</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">fontname</code></dt>
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<dd>
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<p class="para">
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The name of the font.
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</p>
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</dd>
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<dt>
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<code class="parameter">encoding</code></dt>
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<dd>
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<p class="para">
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<span class="function"><strong>ps_findfont()</strong></span> will try to load the file passed in
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the parameter <code class="parameter">encoding</code>. Encoding files are of
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the same syntax as those used by <strong class="command">dvips(1)</strong>. They
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contain a font encoding vector (which is currently not used but must be
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present) and a list of extra ligatures to extend the list of ligatures
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derived from the afm file.
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</p>
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<p class="para">
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<code class="parameter">encoding</code> can be <strong><code>NULL</code></strong> or the empty string if
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the default encoding (TeXBase1) shall be used.
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</p>
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<p class="para">
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If the encoding is set to <em>builtin</em> then there
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will be no reencoding and the font specific encoding will be used. This
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is very useful with symbol fonts.
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</p>
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</dd>
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<dt>
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<code class="parameter">embed</code></dt>
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<dd>
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<p class="para">
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If set to a value >0 the font will be embedded into the document. This
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requires the font outline (.pfb file) to be present.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ps-findfont-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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Returns the identifier of the font or zero in case of an error. The
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identifier is a positive number.
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.ps-findfont-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="ps_begin_page.html" class="function" rel="rdfs-seeAlso">ps_begin_page()</a> - Start a new page</span></li>
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<li class="member"><span class="function"><a href="ps_setfont.html" class="function" rel="rdfs-seeAlso">ps_setfont()</a> - Sets font to use for following output</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |