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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | <html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>pango.FontMetrics</title><link rel="stylesheet" href="style.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.75.2"><link rel="home" href="index.html" title="PyGTK 2.0 Reference Manual"><link rel="up" href="pango-class-reference.html" title="The pango Class Reference"><link rel="prev" href="class-pangofontmap.html" title="pango.FontMap"><link rel="next" href="class-pangofontset.html" title="pango.Fontset"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">pango.FontMetrics</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="class-pangofontmap.html">Prev</a> </td><th width="60%" align="center">The pango Class Reference</th><td width="20%" align="right"> <a accesskey="n" href="class-pangofontset.html">Next</a></td></tr></table><hr></div><div class="refentry" title="pango.FontMetrics"><a name="class-pangofontmetrics"></a><div class="titlepage"></div><div class="refnamediv"><h2>pango.FontMetrics</h2><p>pango.FontMetrics — an object containing overall metric information for a
font.</p></div><div class="refsect1" title="Synopsis"><a name="id2980572"></a><h2>Synopsis</h2><table bgcolor="#D0E0F0" width="100%"><tr><td><pre class="classsynopsis">class <span class="ooclass"><span class="classname">pango.FontMetrics</span></span>(<span class="ooclass"><span class="classname">gobject.GBoxed</span></span>):
<code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-pangofontmetrics.html#method-pangofontmetrics--get-ascent" title="pango.FontMetrics.get_ascent">get_ascent</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-pangofontmetrics.html#method-pangofontmetrics--get-descent" title="pango.FontMetrics.get_descent">get_descent</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-pangofontmetrics.html#method-pangofontmetrics--get-approximate-char-width" title="pango.FontMetrics.get_approximate_char_width">get_approximate_char_width</a></span>(<span class="methodparam"></span>)</code><br><code class="methodsynopsis"> def <span class="methodname"><a class="link" href="class-pangofontmetrics.html#method-pangofontmetrics--get-approximate-digit-width" title="pango.FontMetrics.get_approximate_digit_width">get_approximate_digit_width</a></span>(<span class="methodparam"></span>)</code><br></pre></td></tr></table></div><div class="refsect1" title="Description"><a name="id2915180"></a><h2>Description</h2><p>A <a class="link" href="class-pangofontmetrics.html" title="pango.FontMetrics"><code class="classname">pango.FontMetrics</code></a>
object holds the overall metric information for a font. A <a class="link" href="class-pangofontmetrics.html" title="pango.FontMetrics"><code class="classname">pango.FontMetrics</code></a>
object is returned from the following methods:</p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><a class="link" href="class-pangocontext.html#method-pangocontext--get-metrics" title="pango.Context.get_metrics"><code class="methodname">pango.Context.get_metrics</code>()</a></li><li class="listitem"><a class="link" href="class-pangofont.html#method-pangofont--get-metrics" title="pango.Font.get_metrics"><code class="methodname">pango.Font.get_metrics</code>()</a></li><li class="listitem"><a class="link" href="class-pangofontset.html#method-pangofontset--get-metrics" title="pango.Fontset.get_metrics"><code class="methodname">pango.Fontset.get_metrics</code>()</a></li></ul></div></div><div class="refsect1" title="Methods"><a name="id3270069"></a><h2>Methods</h2><div class="refsect2" title="pango.FontMetrics.get_ascent"><a name="method-pangofontmetrics--get-ascent"></a><h3>pango.FontMetrics.get_ascent</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_ascent</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the ascent in pango units. (1 point ==
<code class="literal">pango.SCALE</code> pango units.)</td></tr></tbody></table><p>The <code class="methodname">get_ascent</code>() method returns the
font ascent in pango units where one font point is equal to pango.SCALE
(1024) pango units. The ascent is the distance from the baseline to the
logical top of a line of text. (The logical top may be above or below the
top of the actual drawn ink. It is necessary to lay out the text to figure
where the ink will be.)</p></div><div class="refsect2" title="pango.FontMetrics.get_descent"><a name="method-pangofontmetrics--get-descent"></a><h3>pango.FontMetrics.get_descent</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_descent</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the descent in pango units. (1 point ==
<code class="literal">pango.SCALE</code> pango units.)</td></tr></tbody></table><p>The <code class="methodname">get_descent</code>() method returns the
font descent in pango units where one font point is equal to pango.SCALE
(1024) pango units. The descent is the distance from the baseline to the
logical bottom of a line of text. (The logical bottom may be above or below
the bottom of the actual drawn ink. It is necessary to lay out the text to
figure where the ink will be.)</p></div><div class="refsect2" title="pango.FontMetrics.get_approximate_char_width"><a name="method-pangofontmetrics--get-approximate-char-width"></a><h3>pango.FontMetrics.get_approximate_char_width</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_approximate_char_width</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the character width in pango units. (1 point ==
<code class="literal">pango.SCALE</code> pango units.)</td></tr></tbody></table><p>The <code class="methodname">get_approximate_char_width</code>() method
returns the approximate character width for a font in pango units where one
font point is equal to pango.SCALE (1024) pango units. This is merely a
representative value that is useful, for example, for determining the
initial size for a window. Actual characters in text will be wider and
narrower than this.</p></div><div class="refsect2" title="pango.FontMetrics.get_approximate_digit_width"><a name="method-pangofontmetrics--get-approximate-digit-width"></a><h3>pango.FontMetrics.get_approximate_digit_width</h3><pre class="programlisting"><code class="methodsynopsis"> def <span class="methodname">get_approximate_digit_width</span>(<span class="methodparam"></span>)</code></pre><table border="0" width="100%" bgcolor="#FFECCE"><col align="left" valign="top" width="0*"><tbody><tr><td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td><td>the digit width in pango units. (1 point ==
<code class="literal">pango.SCALE</code> pango units.)</td></tr></tbody></table><p>The <code class="methodname">get_approximate_digit_width</code>()
method returns the approximate digit width for a font in pango units where
one font point is equal to pango.SCALE (1024) pango units. This is merely a
representative value that is useful, for example, for determining the
initial size for a window. Actual digits in text can be wider and narrower
than this, though this value is generally somewhat more accurate than the
result of the <a class="link" href="class-pangofontmetrics.html#method-pangofontmetrics--get-approximate-char-width" title="pango.FontMetrics.get_approximate_char_width"><code class="methodname">get_approximate_char_width</code>()</a>
method.</p></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="class-pangofontmap.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="pango-class-reference.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="class-pangofontset.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">pango.FontMap </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> pango.Fontset</td></tr></table></div></body></html>
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