<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>Qwt User's Guide: QwtPickerMachine Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.3 --> <div id="top"> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">Qwt User's Guide <span id="projectnumber">6.0.1</span></div> </td> </tr> </tbody> </table> </div> <div id="navrow1" class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> <li class="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a 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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="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="class_qwt_picker_machine.html#a3a8d3d4c107ce5f8351e4cbdd38c43f7">QwtPickerMachine::Command</a></td> </tr> </table> </div> <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="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">enum <a class="el" href="class_qwt_picker_machine.html#a24a9faf12cfa5746eee839a2c0bb937d">QwtPickerMachine::SelectionType</a></td> </tr> </table> </div> <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> </div> </div> <hr/><h2>Constructor & Destructor Documentation</h2> <a class="anchor" id="ab27bc3f70d48aa145db9ebbfdba34e15"></a><!-- doxytag: member="QwtPickerMachine::QwtPickerMachine" ref="ab27bc3f70d48aa145db9ebbfdba34e15" args="(SelectionType)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <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> <td></td> </tr> </table> </div> <div class="memdoc"> <p>Constructor. </p> </div> </div> <a class="anchor" id="aa1164dfb8ae6ac62fb3b6cb19efcb3e5"></a><!-- doxytag: member="QwtPickerMachine::~QwtPickerMachine" ref="aa1164dfb8ae6ac62fb3b6cb19efcb3e5" args="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">QwtPickerMachine::~QwtPickerMachine </td> <td>(</td> <td class="paramname"></td><td>)</td> <td><code> [virtual]</code></td> </tr> </table> </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="()" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void QwtPickerMachine::reset </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </div> <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 " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <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> </tr> </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)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <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 " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">int QwtPickerMachine::state </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </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" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <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> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const QEvent * </td> <td class="paramname"> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td><code> [pure virtual]</code></td> </tr> </table> </div> <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> </div> </div> </div> <hr class="footer"/><address class="footer"><small>Generated by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </small></address> </body> </html>