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<div class="header">
  <div class="summary">
<a href="#pub-methods">Public Member Functions</a> &#124;
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<div class="title">QwtMathMLTextEngine Class Reference</div>  </div>
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<p>Text Engine for the MathML renderer of the Qt solutions package.  
 <a href="class_qwt_math_m_l_text_engine.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__mathml__text__engine_8h_source.html">qwt_mathml_text_engine.h</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for QwtMathMLTextEngine:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_math_m_l_text_engine__inherit__graph.png" border="0" usemap="#_qwt_math_m_l_text_engine_inherit__map" alt="Inheritance graph"/></div>
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<area shape="rect" id="node2" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings. " alt="" coords="29,5,143,32"/>
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<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:af88b085974808e0497d120044672f721"><td class="memItemLeft" align="right" valign="top"><a id="af88b085974808e0497d120044672f721"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#af88b085974808e0497d120044672f721">QwtMathMLTextEngine</a> ()</td></tr>
<tr class="memdesc:af88b085974808e0497d120044672f721"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <br /></td></tr>
<tr class="separator:af88b085974808e0497d120044672f721"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a864d4265a7621e7389b21d419e6503ff"><td class="memItemLeft" align="right" valign="top"><a id="a864d4265a7621e7389b21d419e6503ff"></a>
virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#a864d4265a7621e7389b21d419e6503ff">~QwtMathMLTextEngine</a> ()</td></tr>
<tr class="memdesc:a864d4265a7621e7389b21d419e6503ff"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor. <br /></td></tr>
<tr class="separator:a864d4265a7621e7389b21d419e6503ff"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9b9d72be4816b901acd3a9e3e8754712"><td class="memItemLeft" align="right" valign="top">virtual double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#a9b9d72be4816b901acd3a9e3e8754712">heightForWidth</a> (const QFont &amp;font, int flags, const QString &amp;text, double width) const</td></tr>
<tr class="separator:a9b9d72be4816b901acd3a9e3e8754712"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a82ca1c89927b32a32829680e4be63001"><td class="memItemLeft" align="right" valign="top">virtual QSizeF&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#a82ca1c89927b32a32829680e4be63001">textSize</a> (const QFont &amp;font, int flags, const QString &amp;text) const</td></tr>
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<tr class="memitem:a7d762090045267910dfd579defb6fa29"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#a7d762090045267910dfd579defb6fa29">draw</a> (QPainter *painter, const QRectF &amp;rect, int flags, const QString &amp;text) const</td></tr>
<tr class="separator:a7d762090045267910dfd579defb6fa29"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adbb0723b8a7f8ab9ff612d062d5f053b"><td class="memItemLeft" align="right" valign="top">virtual bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#adbb0723b8a7f8ab9ff612d062d5f053b">mightRender</a> (const QString &amp;) const</td></tr>
<tr class="separator:adbb0723b8a7f8ab9ff612d062d5f053b"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a7ae2e9d5cd4f841baf746652aa24042c"><td class="memItemLeft" align="right" valign="top">virtual void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_math_m_l_text_engine.html#a7ae2e9d5cd4f841baf746652aa24042c">textMargins</a> (const QFont &amp;, const QString &amp;, double &amp;left, double &amp;right, double &amp;top, double &amp;bottom) const</td></tr>
<tr class="separator:a7ae2e9d5cd4f841baf746652aa24042c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_class_qwt_text_engine"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_qwt_text_engine')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="class_qwt_text_engine.html">QwtTextEngine</a></td></tr>
<tr class="memitem:adda9e23494429c54b3cc3452940fb2bc inherit pub_methods_class_qwt_text_engine"><td class="memItemLeft" align="right" valign="top"><a id="adda9e23494429c54b3cc3452940fb2bc"></a>
virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_text_engine.html#adda9e23494429c54b3cc3452940fb2bc">~QwtTextEngine</a> ()</td></tr>
<tr class="memdesc:adda9e23494429c54b3cc3452940fb2bc inherit pub_methods_class_qwt_text_engine"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor. <br /></td></tr>
<tr class="separator:adda9e23494429c54b3cc3452940fb2bc inherit pub_methods_class_qwt_text_engine"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pro_methods_class_qwt_text_engine"><td colspan="2" onclick="javascript:toggleInherit('pro_methods_class_qwt_text_engine')"><img src="closed.png" alt="-"/>&#160;Protected Member Functions inherited from <a class="el" href="class_qwt_text_engine.html">QwtTextEngine</a></td></tr>
<tr class="memitem:a97c5ef76ee920ab0f19e178e85017d9d inherit pro_methods_class_qwt_text_engine"><td class="memItemLeft" align="right" valign="top"><a id="a97c5ef76ee920ab0f19e178e85017d9d"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_text_engine.html#a97c5ef76ee920ab0f19e178e85017d9d">QwtTextEngine</a> ()</td></tr>
<tr class="memdesc:a97c5ef76ee920ab0f19e178e85017d9d inherit pro_methods_class_qwt_text_engine"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <br /></td></tr>
<tr class="separator:a97c5ef76ee920ab0f19e178e85017d9d inherit pro_methods_class_qwt_text_engine"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Text Engine for the MathML renderer of the Qt solutions package. </p>
<p>To enable MathML support the following code needs to be added to the application:</p>
<div class="fragment"><div class="line"><span class="preprocessor">#include &lt;qwt_mathml_text_engine.h&gt;</span></div><div class="line"></div><div class="line"><a class="code" href="class_qwt_text.html#aef6a1e71b1feba3116ce69f6c9de70ad">QwtText::setTextEngine</a>( <a class="code" href="class_qwt_text.html#a63e0d6a59a427a37ed0bfa71b782fd76abf479897e4514198246a0b232a597caf">QwtText::MathMLText</a>, <span class="keyword">new</span> <a class="code" href="class_qwt_math_m_l_text_engine.html#af88b085974808e0497d120044672f721">QwtMathMLTextEngine</a>() );</div></div><!-- fragment --><dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_text_engine.html" title="Abstract base class for rendering text strings. ">QwtTextEngine</a>, <a class="el" href="class_qwt_text.html#aef6a1e71b1feba3116ce69f6c9de70ad">QwtText::setTextEngine</a> </dd></dl>
<dl class="section warning"><dt>Warning</dt><dd>Unfortunately the MathML renderer doesn't support rotating of texts. </dd></dl>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="a7d762090045267910dfd579defb6fa29"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a7d762090045267910dfd579defb6fa29">&#9670;&nbsp;</a></span>draw()</h2>

<div class="memitem">
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      <table class="memname">
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          <td class="memname">void QwtMathMLTextEngine::draw </td>
          <td>(</td>
          <td class="paramtype">QPainter *&#160;</td>
          <td class="paramname"><em>painter</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QRectF &amp;&#160;</td>
          <td class="paramname"><em>rect</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>flags</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QString &amp;&#160;</td>
          <td class="paramname"><em>text</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
  </td>
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<span class="mlabels"><span class="mlabel">virtual</span></span>  </td>
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<p>Draw the text in a clipping rectangle</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">painter</td><td>Painter </td></tr>
    <tr><td class="paramname">rect</td><td>Clipping rectangle </td></tr>
    <tr><td class="paramname">flags</td><td>Bitwise OR of the flags like in for QPainter::drawText </td></tr>
    <tr><td class="paramname">text</td><td>Text to be rendered </td></tr>
  </table>
  </dd>
</dl>

<p>Implements <a class="el" href="class_qwt_text_engine.html#ad727f58f9eebfec86369e7f2e5bf6a59">QwtTextEngine</a>.</p>

</div>
</div>
<a id="a9b9d72be4816b901acd3a9e3e8754712"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9b9d72be4816b901acd3a9e3e8754712">&#9670;&nbsp;</a></span>heightForWidth()</h2>

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          <td class="memname">double QwtMathMLTextEngine::heightForWidth </td>
          <td>(</td>
          <td class="paramtype">const QFont &amp;&#160;</td>
          <td class="paramname"><em>font</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>flags</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QString &amp;&#160;</td>
          <td class="paramname"><em>text</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>width</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
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<p>Find the height for a given width</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">font</td><td>Font of the text </td></tr>
    <tr><td class="paramname">flags</td><td>Bitwise OR of the flags used like in QPainter::drawText </td></tr>
    <tr><td class="paramname">text</td><td>Text to be rendered </td></tr>
    <tr><td class="paramname">width</td><td>Width</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Calculated height </dd></dl>

<p>Implements <a class="el" href="class_qwt_text_engine.html#aee891b14d90c817b8c73d551f623cc17">QwtTextEngine</a>.</p>

</div>
</div>
<a id="adbb0723b8a7f8ab9ff612d062d5f053b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adbb0723b8a7f8ab9ff612d062d5f053b">&#9670;&nbsp;</a></span>mightRender()</h2>

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          <td class="memname">bool QwtMathMLTextEngine::mightRender </td>
          <td>(</td>
          <td class="paramtype">const QString &amp;&#160;</td>
          <td class="paramname"><em>text</em></td><td>)</td>
          <td> const</td>
        </tr>
      </table>
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<p>Test if a string can be rendered by <a class="el" href="class_qwt_math_m_l_text_engine.html" title="Text Engine for the MathML renderer of the Qt solutions package. ">QwtMathMLTextEngine</a></p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">text</td><td>Text to be tested </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true, if text begins with "&lt;math&gt;". </dd></dl>

<p>Implements <a class="el" href="class_qwt_text_engine.html#a98316f2f6f4f50216ceffbe9babe2901">QwtTextEngine</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a7ae2e9d5cd4f841baf746652aa24042c">&#9670;&nbsp;</a></span>textMargins()</h2>

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          <td class="memname">void QwtMathMLTextEngine::textMargins </td>
          <td>(</td>
          <td class="paramtype">const QFont &amp;&#160;</td>
          <td class="paramname">, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QString &amp;&#160;</td>
          <td class="paramname">, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double &amp;&#160;</td>
          <td class="paramname"><em>left</em>, </td>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double &amp;&#160;</td>
          <td class="paramname"><em>right</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double &amp;&#160;</td>
          <td class="paramname"><em>top</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double &amp;&#160;</td>
          <td class="paramname"><em>bottom</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td> const</td>
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<p>Return margins around the texts</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">left</td><td>Return 0 </td></tr>
    <tr><td class="paramname">right</td><td>Return 0 </td></tr>
    <tr><td class="paramname">top</td><td>Return 0 </td></tr>
    <tr><td class="paramname">bottom</td><td>Return 0 </td></tr>
  </table>
  </dd>
</dl>

<p>Implements <a class="el" href="class_qwt_text_engine.html#a83c8d3dc590b9914e9216c01e78e0838">QwtTextEngine</a>.</p>

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<h2 class="memtitle"><span class="permalink"><a href="#a82ca1c89927b32a32829680e4be63001">&#9670;&nbsp;</a></span>textSize()</h2>

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          <td class="memname">QSizeF QwtMathMLTextEngine::textSize </td>
          <td>(</td>
          <td class="paramtype">const QFont &amp;&#160;</td>
          <td class="paramname"><em>font</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>flags</em>, </td>
        </tr>
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          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QString &amp;&#160;</td>
          <td class="paramname"><em>text</em>&#160;</td>
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          <td></td>
          <td>)</td>
          <td></td><td> const</td>
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<p>Returns the size, that is needed to render text</p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">font</td><td>Font of the text </td></tr>
    <tr><td class="paramname">flags</td><td>Bitwise OR of the flags used like in QPainter::drawText </td></tr>
    <tr><td class="paramname">text</td><td>Text to be rendered</td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Caluclated size </dd></dl>

<p>Implements <a class="el" href="class_qwt_text_engine.html#ad9382cc8ff22c6b3e448fce566a76178">QwtTextEngine</a>.</p>

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