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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<!-- Generated by Doxygen 1.3.8 -->
<h1>GFC::Pango::FontMetrics Class Reference</h1>A PangoFontMetrics C++ wrapper class.
<a href="#_details">More...</a>
<p>
<code>#include <<a class="el" href="font_8hh-source.html">gfc/pango/font.hh</a>></code>
<p>
<p>Inheritance diagram for GFC::Pango::FontMetrics:
<p><center><img src="classGFC_1_1Pango_1_1FontMetrics.png" usemap="#GFC::Pango::FontMetrics_map" border="0" alt=""></center>
<map name="GFC::Pango::FontMetrics_map">
<area doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Boxed.html" alt="GFC::G::Boxed" shape="rect" coords="0,112,153,136">
<area doxygen="gfccore.tag:" href="classGFC_1_1Object.html" alt="GFC::Object" shape="rect" coords="0,56,153,80">
<area doxygen="gfccore.tag:" href="classGFC_1_1Trackable.html" alt="GFC::Trackable" shape="rect" coords="0,0,153,24">
</map>
<a href="classGFC_1_1Pango_1_1FontMetrics-members.html">List of all members.</a><h2>Public Member Functions</h2>
<tr><td colspan="2"><div class="groupHeader">Constructors</div></td></tr>
<ul>
<li><a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1157_0">FontMetrics</a> (PangoFontMetrics *metrics)
<dl class="el"><dd class="mdescRight">Construct a new font metrics from an existing PangoFontMetrics. <a href="#z1157_0"></a><br></dl><li><a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1157_1">FontMetrics</a> (PangoFontMetrics *metrics, bool <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Boxed.html#z5_0">copy</a>)
<dl class="el"><dd class="mdescRight">Construct a new font metrics from an existing PangoFontMetrics. <a href="#z1157_1"></a><br></dl><li><a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1157_2">FontMetrics</a> (const <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> &src)
<dl class="el"><dd class="mdescRight">Copy constructor. <a href="#z1157_2"></a><br></dl><li><a class="anchor" name="z1157_3" doxytag="GFC::Pango::FontMetrics::~FontMetrics" ></a>
virtual <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1157_3">~FontMetrics</a> ()
<dl class="el"><dd class="mdescRight">Destructor. <br></dl><li><a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> & <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1157_4">operator=</a> (const <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> &src)
<dl class="el"><dd class="mdescRight">Assignment operator. <a href="#z1157_4"></a><br></dl></ul>
<tr><td colspan="2"><div class="groupHeader">Accessors</div></td></tr>
<ul>
<li><a class="anchor" name="z1158_0" doxytag="GFC::Pango::FontMetrics::pango_font_metrics" ></a>
PangoFontMetrics * <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_0">pango_font_metrics</a> () const
<dl class="el"><dd class="mdescRight">Get a pointer to the PangoFontMetrics structure. <br></dl><li><a class="anchor" name="z1158_1" doxytag="GFC::Pango::FontMetrics::operator PangoFontMetrics *" ></a>
<a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_1">operator PangoFontMetrics *</a> () const
<dl class="el"><dd class="mdescRight">Conversion operator; safely converts a <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> to a PangoFontMetrics pointer. <br></dl><li>int <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_2">get_ascent</a> () const
<dl class="el"><dd class="mdescRight">Returns the ascent from a font metrics structure. <a href="#z1158_2"></a><br></dl><li>int <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_3">get_descent</a> () const
<dl class="el"><dd class="mdescRight">Gets the descent from a font metrics structure. <a href="#z1158_3"></a><br></dl><li>int <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_4">get_approximate_char_width</a> () const
<dl class="el"><dd class="mdescRight">Gets the approximate character width for the font metrics structure. <a href="#z1158_4"></a><br></dl><li>int <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html#z1158_5">get_approximate_digit_width</a> () const
<dl class="el"><dd class="mdescRight">Gets the approximate digit width for the font metrics structure. <a href="#z1158_5"></a><br></dl></ul>
<hr><a name="_details"></a><h2>Detailed Description</h2>
A PangoFontMetrics C++ wrapper class.
<p>
<a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> structure holds the overall metric information for a font.
<p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="z1157_0" doxytag="GFC::Pango::FontMetrics::FontMetrics" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Pango::FontMetrics::FontMetrics </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">PangoFontMetrics * </td>
<td class="mdname1" valign="top" nowrap> <em>metrics</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [explicit]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Construct a new font metrics from an existing PangoFontMetrics.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>metrics</em> </td><td>A pointer to a PangoFontMetrics.</td></tr>
</table>
</dl>
<br>
The <em>metrics</em> can be a newly created PangoFontMetrics or an existing PangoFontMetrics. The font metrics object created is a temporary object. It doesn't take over the ownership of PangoFontMetrics and PangoFontMetrics is not freed by the destructor. </td>
</tr>
</table>
<a class="anchor" name="z1157_1" doxytag="GFC::Pango::FontMetrics::FontMetrics" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Pango::FontMetrics::FontMetrics </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">PangoFontMetrics * </td>
<td class="mdname" nowrap> <em>metrics</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>bool </td>
<td class="mdname" nowrap> <em>copy</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Construct a new font metrics from an existing PangoFontMetrics.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>metrics</em> </td><td>A pointer to a PangoFontMetrics. </td></tr>
<tr><td></td><td valign=top><em>copy</em> </td><td>Whether the <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> object should make a copy of PangoFontMetrics or not.</td></tr>
</table>
</dl>
<br>
The <em>metrics</em> can be a newly created PangoFontMetrics or an existing PangoFontMetrics. If <em>copy</em> is true <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> will make a copy of PangoFontMetrics. If <em>copy</em> is false <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> wont make a copy but instead takes over the ownership of PangoFontMetrics. Either way, the destructor will free PangoFontMetrics when the <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> object is destroyed. This constructor is used by <a class="elRef" doxygen="gfccore.tag:" href="classGFC_1_1G_1_1Boxed.html#z6_0">G::Boxed::wrap()</a> to wrap PangoFontMetrics objects in a C++ wrapper. </td>
</tr>
</table>
<a class="anchor" name="z1157_2" doxytag="GFC::Pango::FontMetrics::FontMetrics" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> GFC::Pango::FontMetrics::FontMetrics </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>src</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Copy constructor.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>src</em> </td><td>The source <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a>. </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="z1158_4" doxytag="GFC::Pango::FontMetrics::get_approximate_char_width" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int GFC::Pango::FontMetrics::get_approximate_char_width </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Gets the approximate character width for the font metrics structure.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The character width, in pango units. (1 point == PANGO_SCALE pango units.)</dd></dl>
<br>
This is merely a representative value useful, for example, for determining the initial size for a window. Actual characters in text will be wider and narrower than this. </td>
</tr>
</table>
<a class="anchor" name="z1158_5" doxytag="GFC::Pango::FontMetrics::get_approximate_digit_width" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int GFC::Pango::FontMetrics::get_approximate_digit_width </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Gets the approximate digit width for the font metrics structure.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The digit width, in pango units. (1 point == PANGO_SCALE pango units.)</dd></dl>
<br>
This is merely a representative value useful, for example, for determining the initial size for a window. Actual digits in text can be wider and narrower than this. </td>
</tr>
</table>
<a class="anchor" name="z1158_2" doxytag="GFC::Pango::FontMetrics::get_ascent" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int GFC::Pango::FontMetrics::get_ascent </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Returns the ascent from a font metrics structure.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The ascent, in pango units. (1 point == PANGO_SCALE pango units.)</dd></dl>
<br>
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.) </td>
</tr>
</table>
<a class="anchor" name="z1158_3" doxytag="GFC::Pango::FontMetrics::get_descent" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int GFC::Pango::FontMetrics::get_descent </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Gets the descent from a font metrics structure.
<p>
<dl compact><dt><b>Returns:</b></dt><dd>The descent, in pango units. (1 point == PANGO_SCALE pango units.)</dd></dl>
<br>
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.) </td>
</tr>
</table>
<a class="anchor" name="z1157_4" doxytag="GFC::Pango::FontMetrics::operator=" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a>& GFC::Pango::FontMetrics::operator= </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">const <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a> & </td>
<td class="mdname1" valign="top" nowrap> <em>src</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Assignment operator.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>src</em> </td><td>The source <a class="el" href="classGFC_1_1Pango_1_1FontMetrics.html">FontMetrics</a>. </td></tr>
</table>
</dl>
</td>
</tr>
</table>
<hr>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="font_8hh-source.html">font.hh</a></ul>
<hr size="1"><address style="align: right;"><small>Generated on Tue Aug 24 00:34:45 2004 for GFC-UI by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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