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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Qwt User&#39;s Guide: QwtPickerDragPointMachine Class Reference</title>
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<a href="#pub-types">Public Types</a> &#124;
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<h1>QwtPickerDragPointMachine Class Reference</h1>  </div>
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<div class="contents">
<!-- doxytag: class="QwtPickerDragPointMachine" --><!-- doxytag: inherits="QwtPickerMachine" -->
<p>A state machine for point selections.  
<a href="#_details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__picker__machine_8h_source.html">qwt_picker_machine.h</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for QwtPickerDragPointMachine:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_picker_drag_point_machine__inherit__graph.png" border="0" usemap="#_qwt_picker_drag_point_machine_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_picker_drag_point_machine_inherit__map" id="_qwt_picker_drag_point_machine_inherit__map">
<area shape="rect" id="node2" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections." alt="" coords="33,6,164,37"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>

<p><a href="class_qwt_picker_drag_point_machine-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">Command</a> { <br/>
&#160;&#160;<b>Begin</b>, 
<br/>
&#160;&#160;<b>Append</b>, 
<br/>
&#160;&#160;<b>Move</b>, 
<br/>
&#160;&#160;<b>End</b>
<br/>
 }</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac173f6053e54747d7154bbc015763a22"></a><!-- doxytag: member="QwtPickerDragPointMachine::CommandList" ref="ac173f6053e54747d7154bbc015763a22" args="" -->
typedef QList&lt; <a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">Command</a> &gt;&#160;</td><td class="memItemRight" valign="bottom"><b>CommandList</b></td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#ace6daa55324a8daab3839cf8ba677a93">reset</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a569c426543e4a6aa15c221eb7c4910f0">setState</a> (int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a9060b1036ef5125968fc7030681d73c0">state</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual CommandList&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_drag_point_machine.html#af46c1217838359753d325739107d7833">transition</a> (const <a class="el" href="class_qwt_event_pattern.html">QwtEventPattern</a> &amp;, const QEvent *)</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A state machine for point selections. </p>
<p>Pressing QwtEventPattern::MouseSelect1 or QwtEventPattern::KeySelect1 starts the selection, releasing QwtEventPattern::MouseSelect1 or a second press of QwtEventPattern::KeySelect1 terminates it. </p>
</div><hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="a3a8d3d4c107ce5f8351e4cbdd38c43f7"></a><!-- doxytag: member="QwtPickerDragPointMachine::Command" ref="a3a8d3d4c107ce5f8351e4cbdd38c43f7" args="" -->
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          <td class="memname">enum <a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">QwtPickerMachine::Command</a><code> [inherited]</code></td>
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<p>Commands - the output of the state machine. </p>

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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ace6daa55324a8daab3839cf8ba677a93"></a><!-- doxytag: member="QwtPickerDragPointMachine::reset" ref="ace6daa55324a8daab3839cf8ba677a93" args="()" -->
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          <td class="memname">void QwtPickerMachine::reset </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td><code> [inherited]</code></td>
        </tr>
      </table>
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<div class="memdoc">

<p>Set the current state to 0. </p>

</div>
</div>
<a class="anchor" id="a569c426543e4a6aa15c221eb7c4910f0"></a><!-- doxytag: member="QwtPickerDragPointMachine::setState" ref="a569c426543e4a6aa15c221eb7c4910f0" args="(int)" -->
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          <td class="memname">void QwtPickerMachine::setState </td>
          <td>(</td>
          <td class="paramtype">int&#160;</td>
          <td class="paramname"><em>state</em></td><td>)</td>
          <td><code> [inherited]</code></td>
        </tr>
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<div class="memdoc">

<p>Change the current state. </p>

</div>
</div>
<a class="anchor" id="a9060b1036ef5125968fc7030681d73c0"></a><!-- doxytag: member="QwtPickerDragPointMachine::state" ref="a9060b1036ef5125968fc7030681d73c0" args="() const " -->
<div class="memitem">
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      <table class="memname">
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          <td class="memname">int QwtPickerMachine::state </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const<code> [inherited]</code></td>
        </tr>
      </table>
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<p>Return the current state. </p>

</div>
</div>
<a class="anchor" id="af46c1217838359753d325739107d7833"></a><!-- doxytag: member="QwtPickerDragPointMachine::transition" ref="af46c1217838359753d325739107d7833" args="(const QwtEventPattern &amp;, const QEvent *)" -->
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          <td class="memname">QwtPickerMachine::CommandList QwtPickerDragPointMachine::transition </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_event_pattern.html">QwtEventPattern</a> &amp;&#160;</td>
          <td class="paramname"><em>eventPattern</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const QEvent *&#160;</td>
          <td class="paramname"><em>e</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td><code> [virtual]</code></td>
        </tr>
      </table>
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<div class="memdoc">

<p>Transition. </p>

<p>Implements <a class="el" href="class_qwt_picker_machine.html#a471bbb0faec23939aadb94e5e5f9ef73">QwtPickerMachine</a>.</p>

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