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<a href="#pub-types">Public Types</a> |
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<h1>QwtPickerMachine Class Reference</h1> </div>
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<!-- doxytag: class="QwtPickerMachine" -->
<p>A state machine for <a class="el" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a> selections.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__picker__machine_8h_source.html">qwt_picker_machine.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtPickerMachine:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_picker_machine__inherit__graph.png" border="0" usemap="#_qwt_picker_machine_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_picker_machine_inherit__map" id="_qwt_picker_machine_inherit__map">
<area shape="rect" id="node3" href="class_qwt_picker_click_point_machine.html" title="A state machine for point selections." alt="" coords="185,5,375,35"/><area shape="rect" id="node5" href="class_qwt_picker_click_rect_machine.html" title="A state machine for rectangle selections." alt="" coords="187,59,373,88"/><area shape="rect" id="node7" href="class_qwt_picker_drag_point_machine.html" title="A state machine for point selections." alt="" coords="187,112,373,141"/><area shape="rect" id="node9" href="class_qwt_picker_drag_rect_machine.html" title="A state machine for rectangle selections." alt="" coords="188,165,372,195"/><area shape="rect" id="node11" href="class_qwt_picker_polygon_machine.html" title="A state machine for polygon selections." alt="" coords="191,219,369,248"/><area shape="rect" id="node13" href="class_qwt_picker_tracker_machine.html" title="A state machine for indicating mouse movements." alt="" coords="193,272,367,301"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_picker_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  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">Command</a> { <br/>
  <b>Begin</b>,
<br/>
  <b>Append</b>,
<br/>
  <b>Move</b>,
<br/>
  <b>Remove</b>,
<br/>
  <b>End</b>
<br/>
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">SelectionType</a> { <br/>
  <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937da326bcc03f7a99aa5970d875f3db46888">NoSelection</a> = -1,
<br/>
  <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937dae65a34cc1ca5d818eb65c05b2484d855">PointSelection</a>,
<br/>
  <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937da9f540e78958e8e238240584120e8af1d">RectSelection</a>,
<br/>
  <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937dac74671ee5ba5d6fd0410f71db1aa3b97">PolygonSelection</a>
<br/>
}</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"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#ab27bc3f70d48aa145db9ebbfdba34e15">QwtPickerMachine</a> (<a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">SelectionType</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </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"><a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">SelectionType</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#a9ccd6ccb3fa0e2a73730e69a8658c316">selectionType</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </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 </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 QList< <a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">Command</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#acf7b57003bec437ce1ecf83e6d544968">transition</a> (const <a class="el" href="class_qwt_event_pattern.html">QwtEventPattern</a> &, const QEvent *)=0</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_picker_machine.html#aa1164dfb8ae6ac62fb3b6cb19efcb3e5">~QwtPickerMachine</a> ()</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A state machine for <a class="el" href="class_qwt_picker.html" title="QwtPicker provides selections on a widget.">QwtPicker</a> selections. </p>
<p><a class="el" href="class_qwt_picker_machine.html" title="A state machine for QwtPicker selections.">QwtPickerMachine</a> accepts key and mouse events and translates them into selection commands.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_event_pattern.html#af48dc808ac5e125eeed41a4c0285d1ea" title="Symbolic mouse input codes.">QwtEventPattern::MousePatternCode</a>, <a class="el" href="class_qwt_event_pattern.html#a8fb57ceb9982d5583a1bf568e37d3007" title="Symbolic keyboard input codes.">QwtEventPattern::KeyPatternCode</a> </dd></dl>
</div><hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="a3a8d3d4c107ce5f8351e4cbdd38c43f7"></a><!-- doxytag: member="QwtPickerMachine::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></td>
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<div class="memdoc">
<p>Commands - the output of a state machine. </p>
</div>
</div>
<a class="anchor" id="a24a9faf12cfa5746eee839a2c0bb937d"></a><!-- doxytag: member="QwtPickerMachine::SelectionType" ref="a24a9faf12cfa5746eee839a2c0bb937d" args="" -->
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<div class="memproto">
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<td class="memname">enum <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">QwtPickerMachine::SelectionType</a></td>
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<div class="memdoc">
<p>Type of a selection. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_picker_machine.html#a9ccd6ccb3fa0e2a73730e69a8658c316" title="Return the selection type.">selectionType()</a> </dd></dl>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="a24a9faf12cfa5746eee839a2c0bb937da326bcc03f7a99aa5970d875f3db46888"></a><!-- doxytag: member="NoSelection" ref="a24a9faf12cfa5746eee839a2c0bb937da326bcc03f7a99aa5970d875f3db46888" args="" -->NoSelection</em> </td><td>
<p>The state machine not usable for any type of selection. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a24a9faf12cfa5746eee839a2c0bb937dae65a34cc1ca5d818eb65c05b2484d855"></a><!-- doxytag: member="PointSelection" ref="a24a9faf12cfa5746eee839a2c0bb937dae65a34cc1ca5d818eb65c05b2484d855" args="" -->PointSelection</em> </td><td>
<p>The state machine is for selecting a single point. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a24a9faf12cfa5746eee839a2c0bb937da9f540e78958e8e238240584120e8af1d"></a><!-- doxytag: member="RectSelection" ref="a24a9faf12cfa5746eee839a2c0bb937da9f540e78958e8e238240584120e8af1d" args="" -->RectSelection</em> </td><td>
<p>The state machine is for selecting a rectangle (2 points). </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a24a9faf12cfa5746eee839a2c0bb937dac74671ee5ba5d6fd0410f71db1aa3b97"></a><!-- doxytag: member="PolygonSelection" ref="a24a9faf12cfa5746eee839a2c0bb937dac74671ee5ba5d6fd0410f71db1aa3b97" args="" -->PolygonSelection</em> </td><td>
<p>The state machine is for selecting a polygon (many points). </p>
</td></tr>
</table>
</dd>
</dl>
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</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="ab27bc3f70d48aa145db9ebbfdba34e15"></a><!-- doxytag: member="QwtPickerMachine::QwtPickerMachine" ref="ab27bc3f70d48aa145db9ebbfdba34e15" args="(SelectionType)" -->
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<td class="memname">QwtPickerMachine::QwtPickerMachine </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">SelectionType</a> </td>
<td class="paramname"><em>type</em></td><td>)</td>
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<div class="memdoc">
<p>Constructor. </p>
</div>
</div>
<a class="anchor" id="aa1164dfb8ae6ac62fb3b6cb19efcb3e5"></a><!-- doxytag: member="QwtPickerMachine::~QwtPickerMachine" ref="aa1164dfb8ae6ac62fb3b6cb19efcb3e5" args="()" -->
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<td class="memname">QwtPickerMachine::~QwtPickerMachine </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
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</div>
<div class="memdoc">
<p>Destructor. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ace6daa55324a8daab3839cf8ba677a93"></a><!-- doxytag: member="QwtPickerMachine::reset" ref="ace6daa55324a8daab3839cf8ba677a93" args="()" -->
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<td class="memname">void QwtPickerMachine::reset </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<div class="memdoc">
<p>Set the current state to 0. </p>
</div>
</div>
<a class="anchor" id="a9ccd6ccb3fa0e2a73730e69a8658c316"></a><!-- doxytag: member="QwtPickerMachine::selectionType" ref="a9ccd6ccb3fa0e2a73730e69a8658c316" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">QwtPickerMachine::SelectionType</a> QwtPickerMachine::selectionType </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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</table>
</div>
<div class="memdoc">
<p>Return the selection type. </p>
</div>
</div>
<a class="anchor" id="a569c426543e4a6aa15c221eb7c4910f0"></a><!-- doxytag: member="QwtPickerMachine::setState" ref="a569c426543e4a6aa15c221eb7c4910f0" args="(int)" -->
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<td class="memname">void QwtPickerMachine::setState </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>state</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Change the current state. </p>
</div>
</div>
<a class="anchor" id="a9060b1036ef5125968fc7030681d73c0"></a><!-- doxytag: member="QwtPickerMachine::state" ref="a9060b1036ef5125968fc7030681d73c0" args="() const " -->
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<td class="memname">int QwtPickerMachine::state </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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</table>
</div>
<div class="memdoc">
<p>Return the current state. </p>
</div>
</div>
<a class="anchor" id="acf7b57003bec437ce1ecf83e6d544968"></a><!-- doxytag: member="QwtPickerMachine::transition" ref="acf7b57003bec437ce1ecf83e6d544968" args="(const QwtEventPattern &, const QEvent *)=0" -->
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<td class="memname">virtual QList<<a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">Command</a>> QwtPickerMachine::transition </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_event_pattern.html">QwtEventPattern</a> & </td>
<td class="paramname">, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QEvent * </td>
<td class="paramname"> </td>
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<td></td>
<td>)</td>
<td></td><td><code> [pure virtual]</code></td>
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<div class="memdoc">
<p>Transition. </p>
<p>Implemented in <a class="el" href="class_qwt_picker_tracker_machine.html#a77f580a0ebcb019028db9565ca6148b9">QwtPickerTrackerMachine</a>, <a class="el" href="class_qwt_picker_click_point_machine.html#a07b6da1b620dcdb304176c3f40d603df">QwtPickerClickPointMachine</a>, <a class="el" href="class_qwt_picker_drag_point_machine.html#aa9e5fc73a7e828ecb1feb1305bdedc36">QwtPickerDragPointMachine</a>, <a class="el" href="class_qwt_picker_click_rect_machine.html#add912362fad567108cad0a8a506aaf25">QwtPickerClickRectMachine</a>, <a class="el" href="class_qwt_picker_drag_rect_machine.html#a5ff67c2ab51575ddbffe225288ff5f33">QwtPickerDragRectMachine</a>, and <a class="el" href="class_qwt_picker_polygon_machine.html#a3a5466ca9faa33603a0b6ced6aa96791">QwtPickerPolygonMachine</a>.</p>
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