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<title>Qwt User's Guide: QwtKnob Class Reference</title>
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<h1>QwtKnob Class Reference</h1> </div>
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<!-- doxytag: class="QwtKnob" --><!-- doxytag: inherits="QwtAbstractSlider,QwtAbstractScale" -->
<p>The Knob Widget.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__knob_8h_source.html">qwt_knob.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtKnob:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_knob__inherit__graph.png" border="0" usemap="#_qwt_knob_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_knob_inherit__map" id="_qwt_knob_inherit__map">
<area shape="rect" id="node2" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets." alt="" coords="5,83,131,112"/><area shape="rect" id="node4" href="class_qwt_double_range.html" title="A class which controls a value within an interval." alt="" coords="7,5,129,35"/><area shape="rect" id="node6" href="class_qwt_abstract_scale.html" title="An abstract base class for classes containing a scale." alt="" coords="155,83,280,112"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_knob-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_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a> { <br/>
  <a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea697dfc29c275b793fbaf8b8136a7c8a1">NoStyle</a> = -1,
<br/>
  <a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df">Raised</a>,
<br/>
  <a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed">Sunken</a>
<br/>
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a> { <br/>
  <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95af12a242c58b244547abb48ef284246f6">NoMarker</a> = -1,
<br/>
  <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9">Tick</a>,
<br/>
  <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704">Dot</a>,
<br/>
  <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851">Nub</a>,
<br/>
  <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a9ea483f1087c1f6b1ac215b5f146c7c3">Notch</a>
<br/>
}</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154">ScrollMode</a> { <br/>
  <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154a807ce5a253287dc7baf7a9c3661b35c1">ScrNone</a>,
<br/>
  <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154a3b131974e6816c1f1e3223b2976f7e50">ScrMouse</a>,
<br/>
  <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154a0c20ad978c3bb2e833a476b3d8b3cecc">ScrTimer</a>,
<br/>
  <b>ScrDirect</b>,
<br/>
  <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154a9e18dc0c7c8afdfbec8d0962144d971e">ScrPage</a>
<br/>
}</td></tr>
<tr><td colspan="2"><h2><a name="pub-slots"></a>
Public Slots</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a50ed1e265beaa1c8adbe718caa023e50">fitValue</a> (double val)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a5fccdb2ca370bba9ed4d29864fd80788">incValue</a> (int steps)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a9cc63283a2d4f0bcbb67fd331629a318">setReadOnly</a> (bool)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#ac3713f8989b647cb79f0a5894991e36a">setValue</a> (double val)</td></tr>
<tr><td colspan="2"><h2><a name="signals"></a>
Signals</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#ae59671d27931b545073e599a10967452">sliderMoved</a> (double value)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#afd92a0c79c113b3c5e9952d12cff80f5">sliderPressed</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#ab94184da7a029a5f586671251ff380ea">sliderReleased</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a6bc5c410cd56119c6ad50743c9a46af1">valueChanged</a> (double value)</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">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a01f1f43502a8ba14988a0bd3142d94b1">autoScale</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a3e19de6a4762aeaf2b95266b20961574">borderWidth</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a19b85337d4ab0b5f0579b02e4fb29a8f">incPages</a> (int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a040fd1fd03592c524314bf4b5539608d">isReadOnly</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a87c750f098cb5f70306a7908339cb88e">isValid</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a6f8ec8b610b500990dff31f370cab8ba">knobStyle</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#aa9470eed740c7175c7ccfc4406eb5fc2">knobWidth</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a502582b7f31df549e07664e874607a1e">markerSize</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#af7d2aaab6614c8e49974823333215bf7">markerStyle</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a130105fc2001c53cea65f21b03f0b5db">mass</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a215275a1a8b4218a424ee8444c7fe409">maxValue</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QSize </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a03d014cd8d025bfeab6e004c53ab6e5b">minimumSizeHint</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a8b8650a6f8a96144d3af21207ee71637">minValue</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">Qt::Orientation </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a4d2521b9c31ec64b71d8e1771b156d88">orientation</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#ac12a5c43dc5839913379982ec40a39d8">pageSize</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#ad1efbcbf29dbc74f3f378292b76b007b">periodic</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a767e89f3d4875da7d2074050572e0556">QwtKnob</a> (QWidget *parent=NULL)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#aa9c4c23e20fc59b3ca2bfed9fe1e3719">scaleDraw</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a3154037eec8c76c24577b8bf1d92b871">scaleDraw</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a5b8084cc735933ce9338fd2df1126f0e">scaleEngine</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aea3b9d4912f1c28671f232e4100936d7">scaleEngine</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a68f120e12e373796b5d74199a9b8a4b0">scaleMap</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a4cfbcd9880297b1ca28fa824e3f4c3e6">scaleMaxMajor</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a5b23fafbb56bb43fd241c1839256357f">scaleMaxMinor</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_abstract_scale.html#ade952bd5cbde1dba015bc16b880e3a28">setAutoScale</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a2e0a17648602bab3b1aaabfc3ba19441">setBorderWidth</a> (int bw)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a3e69357a595407a73c23df7ad68bf117">setKnobStyle</a> (<a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a58e2966b2ebe5631991f293ab61558f3">setKnobWidth</a> (int w)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a88e06ffddd31d3c0df04771793173353">setMarkerSize</a> (int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#aaa80356a3e3d3703070a6f2b1802646c">setMarkerStyle</a> (<a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a305b137fe4dd80cba307fe1b4bd46272">setMass</a> (double val)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a6b0fdc50bfbb0a8bb40f0dc6bf493b2c">setOrientation</a> (Qt::Orientation o)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a95fa6a4e44fc47726d939155bb6f6f1f">setPeriodic</a> (bool tf)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21">setRange</a> (double vmin, double vmax, double vstep=0.0, int pagesize=1)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ad002e1a352ecf85c1a8595a138d42db7">setScale</a> (const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a1e85d35fda2e18bad16e8aa43dbe99b4">setScale</a> (const <a class="el" href="class_qwt_interval.html">QwtInterval</a> &, double step=0.0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a91af529248b556ef130add4bcfc60bb2">setScale</a> (double vmin, double vmax, double step=0.0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#afea44f23da7f79a2b790178850c26edd">setScaleDraw</a> (<a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f">setScaleEngine</a> (<a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a40fdb4572ad8fdec8b93766ff5f8eda8">setScaleMaxMajor</a> (int ticks)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#a6520bb1e52571f865b21b3710786a4db">setScaleMaxMinor</a> (int ticks)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a29ed5fc66439def424a8ad773eea285d">setStep</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a82c6a859d63833894a6e66f0fdbf8f05">setTotalAngle</a> (double angle)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a91c03aada61745d8924f47319afefee1">setTracking</a> (bool enable)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a945ba36e1b8e20d362083f6737b0601d">setUpdateTime</a> (int t)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a79d99f14ebd47dfede8135845c90cedb">setValid</a> (bool valid)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QSize </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#ac5f92af50fdcbf0b501f18efd07294fd">sizeHint</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a0cb8cc60548c10cb1d98e54387961967">step</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_abstract_slider.html#ab648229c972d0c3258d30b0c43eb5efc">stopMoving</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a804d957c14e08bd9b132985c892ab853">totalAngle</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a7777cf257c812579c4891512f1b6cad0">value</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a13f3e622b333c9918bc61844029f8a70">~QwtKnob</a> ()</td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#ab3c5f30892792e5ca3d84f4409ef6216">abstractScaleDraw</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_scale.html#aa61afdff037ef745a6dad686537cdb96">abstractScaleDraw</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#abccdba2f96c353ecc004adfcb19d2db9">changeEvent</a> (QEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a5ebc1ef5761b8db6d67820fc14cb89d5">drawKnob</a> (QPainter *, const QRectF &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a2b0523757918e335fe444df702972f3e">drawMarker</a> (QPainter *, const QRectF &, double arc) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a595c04ed863eb7f0adaf94440087fe0a">exactPrevValue</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a705b76d28882d37bc5313d6c38c9a720">exactValue</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a42e3a55eb22c249311e5cacefb22ae71">getScrollMode</a> (const QPoint &, <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154">QwtAbstractSlider::ScrollMode</a> &, int &direction) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#a8bc3dd547ed410548b451f074f633546">getValue</a> (const QPoint &p)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a4d55f8ffab93d8610bc026e00e3bdc81">keyPressEvent</a> (QKeyEvent *e)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#af9599b94c6771181ede59a84e33c0e6e">mouseMoveEvent</a> (QMouseEvent *e)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a138397a755057932b5da72f526fc74e6">mouseOffset</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a60e33a71d34b23e9ebefebaa24cdd8c2">mousePressEvent</a> (QMouseEvent *e)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a8f27604396c9d2544931638b806c13e3">mouseReleaseEvent</a> (QMouseEvent *e)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#aac9eb31c18408aaa224f5ad040631384">paintEvent</a> (QPaintEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a38768187bef94dd5e5a2c8664746b365">prevValue</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_abstract_scale.html#abd7c6b312b41882a3b509aadc9ada46e">rescale</a> (double vmin, double vmax, double step=0.0)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_knob.html#abf47fbc76e68791d3012499198285662">resizeEvent</a> (QResizeEvent *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a4a1b9e022180a8567f09632388002396">scrollMode</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_abstract_scale.html#a950c5bf521dc704b78f76c7951346288">setAbstractScaleDraw</a> (<a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> *)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a120e5a03094ef0baf793000972a21722">setMouseOffset</a> (double)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#af9849c5c21412c7308cac6ad6a420e47">setPosition</a> (const QPoint &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_double_range.html#a86641f8755ed172ca4cf72d36df539ca">stepChange</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a26f4d684524925891113d46ffe383b5d">timerEvent</a> (QTimerEvent *e)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_abstract_slider.html#a25d5c9fe00c81e310304461fa6e8ec97">wheelEvent</a> (QWheelEvent *e)</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>The Knob Widget. </p>
<p>The <a class="el" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a> widget imitates look and behaviour of a volume knob on a radio. It contains a scale around the knob which is set up automatically or can be configured manually (see <a class="el" href="class_qwt_abstract_scale.html" title="An abstract base class for classes containing a scale.">QwtAbstractScale</a>). Automatic scrolling is enabled when the user presses a mouse button on the scale. For a description of signals, slots and other members, see <a class="el" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets.">QwtAbstractSlider</a>.</p>
<div align="center">
<img src="knob.png" alt="knob.png"/>
</div>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets.">QwtAbstractSlider</a> and <a class="el" href="class_qwt_abstract_scale.html" title="An abstract base class for classes containing a scale.">QwtAbstractScale</a> for the descriptions of the inherited members. </dd></dl>
</div><hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="addd00357b45752377aec83a3ab7208be"></a><!-- doxytag: member="QwtKnob::KnobStyle" ref="addd00357b45752377aec83a3ab7208be" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">QwtKnob::KnobStyle</a></td>
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<p>Style of the knob surface. </p>
<p>Depending on the KnobStyle the surface of the knob is filled from the brushes of the widget palette().</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a3e69357a595407a73c23df7ad68bf117" title="Set the knob type.">setKnobStyle()</a>, <a class="el" href="class_qwt_knob.html#a6f8ec8b610b500990dff31f370cab8ba">knobStyle()</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="addd00357b45752377aec83a3ab7208bea697dfc29c275b793fbaf8b8136a7c8a1"></a><!-- doxytag: member="NoStyle" ref="addd00357b45752377aec83a3ab7208bea697dfc29c275b793fbaf8b8136a7c8a1" args="" -->NoStyle</em> </td><td>
<p>Fill the knob with a brush from QPalette::Button. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df"></a><!-- doxytag: member="Raised" ref="addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df" args="" -->Raised</em> </td><td>
<p>Build a gradient from QPalette::Midlight and QPalette::Button. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed"></a><!-- doxytag: member="Sunken" ref="addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed" args="" -->Sunken</em> </td><td>
<p>Build a gradient from QPalette::Midlight, QPalette::Button and QPalette::Midlight </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a7254d94e76a74228637931fb75939b95"></a><!-- doxytag: member="QwtKnob::MarkerStyle" ref="a7254d94e76a74228637931fb75939b95" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">QwtKnob::MarkerStyle</a></td>
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<p>Marker type. </p>
<p>The marker indicates the current value on the knob The default setting is a Notch marker.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#aaa80356a3e3d3703070a6f2b1802646c" title="Set the marker type of the knob.">setMarkerStyle()</a>, <a class="el" href="class_qwt_knob.html#a88e06ffddd31d3c0df04771793173353" title="Set the size of the marker.">setMarkerSize()</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="a7254d94e76a74228637931fb75939b95af12a242c58b244547abb48ef284246f6"></a><!-- doxytag: member="NoMarker" ref="a7254d94e76a74228637931fb75939b95af12a242c58b244547abb48ef284246f6" args="" -->NoMarker</em> </td><td>
<p>Don't paint any marker. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9"></a><!-- doxytag: member="Tick" ref="a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9" args="" -->Tick</em> </td><td>
<p>Paint a single tick in QPalette::ButtonText color. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704"></a><!-- doxytag: member="Dot" ref="a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704" args="" -->Dot</em> </td><td>
<p>Paint a circle in QPalette::ButtonText color. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851"></a><!-- doxytag: member="Nub" ref="a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851" args="" -->Nub</em> </td><td>
<p>Draw a raised ellipse with a gradient build from QPalette::Light and QPalette::Mid </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a7254d94e76a74228637931fb75939b95a9ea483f1087c1f6b1ac215b5f146c7c3"></a><!-- doxytag: member="Notch" ref="a7254d94e76a74228637931fb75939b95a9ea483f1087c1f6b1ac215b5f146c7c3" args="" -->Notch</em> </td><td>
<p>Draw a sunken ellipse with a gradient build from QPalette::Light and QPalette::Mid </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ae4c0c4844ac6a35356f3c529a8eae154"></a><!-- doxytag: member="QwtKnob::ScrollMode" ref="ae4c0c4844ac6a35356f3c529a8eae154" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154">QwtAbstractSlider::ScrollMode</a><code> [inherited]</code></td>
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<p>Scroll mode </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a4124aa3b1e462d57ea2693214e66da0b" title="Determine what to do when the user presses a mouse button.">getScrollMode()</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="ae4c0c4844ac6a35356f3c529a8eae154a807ce5a253287dc7baf7a9c3661b35c1"></a><!-- doxytag: member="ScrNone" ref="ae4c0c4844ac6a35356f3c529a8eae154a807ce5a253287dc7baf7a9c3661b35c1" args="" -->ScrNone</em> </td><td>
<p>Scrolling switched off. Don't change the value. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ae4c0c4844ac6a35356f3c529a8eae154a3b131974e6816c1f1e3223b2976f7e50"></a><!-- doxytag: member="ScrMouse" ref="ae4c0c4844ac6a35356f3c529a8eae154a3b131974e6816c1f1e3223b2976f7e50" args="" -->ScrMouse</em> </td><td>
<p>Change the value while the user keeps the button pressed and moves the mouse. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ae4c0c4844ac6a35356f3c529a8eae154a0c20ad978c3bb2e833a476b3d8b3cecc"></a><!-- doxytag: member="ScrTimer" ref="ae4c0c4844ac6a35356f3c529a8eae154a0c20ad978c3bb2e833a476b3d8b3cecc" args="" -->ScrTimer</em> </td><td>
<p>Automatic scrolling. Increment the value in the specified direction as long as the user keeps the button pressed. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ae4c0c4844ac6a35356f3c529a8eae154a9e18dc0c7c8afdfbec8d0962144d971e"></a><!-- doxytag: member="ScrPage" ref="ae4c0c4844ac6a35356f3c529a8eae154a9e18dc0c7c8afdfbec8d0962144d971e" args="" -->ScrPage</em> </td><td>
<p>Automatic scrolling. Same as ScrTimer, but increment by page size. </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a767e89f3d4875da7d2074050572e0556"></a><!-- doxytag: member="QwtKnob::QwtKnob" ref="a767e89f3d4875da7d2074050572e0556" args="(QWidget *parent=NULL)" -->
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<td class="memname">QwtKnob::QwtKnob </td>
<td>(</td>
<td class="paramtype">QWidget * </td>
<td class="paramname"><em>parent</em> = <code>NULL</code></td><td>)</td>
<td><code> [explicit]</code></td>
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<p>Constructor </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">parent</td><td>Parent widget </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a13f3e622b333c9918bc61844029f8a70"></a><!-- doxytag: member="QwtKnob::~QwtKnob" ref="a13f3e622b333c9918bc61844029f8a70" args="()" -->
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<td class="memname">QwtKnob::~QwtKnob </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
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<p>Destructor. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ab3c5f30892792e5ca3d84f4409ef6216"></a><!-- doxytag: member="QwtKnob::abstractScaleDraw" ref="ab3c5f30892792e5ca3d84f4409ef6216" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * QwtAbstractScale::abstractScaleDraw </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Scale draw </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288" title="Set a scale draw.">setAbstractScaleDraw()</a> </dd></dl>
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</div>
<a class="anchor" id="aa61afdff037ef745a6dad686537cdb96"></a><!-- doxytag: member="QwtKnob::abstractScaleDraw" ref="aa61afdff037ef745a6dad686537cdb96" args="()" -->
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<td class="memname"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * QwtAbstractScale::abstractScaleDraw </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [protected, inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Scale draw </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#a950c5bf521dc704b78f76c7951346288" title="Set a scale draw.">setAbstractScaleDraw()</a> </dd></dl>
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</div>
<a class="anchor" id="a01f1f43502a8ba14988a0bd3142d94b1"></a><!-- doxytag: member="QwtKnob::autoScale" ref="a01f1f43502a8ba14988a0bd3142d94b1" args="() const " -->
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<td class="memname">bool QwtAbstractScale::autoScale </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd><code>true</code> if autoscaling is enabled </dd></dl>
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</div>
<a class="anchor" id="a3e19de6a4762aeaf2b95266b20961574"></a><!-- doxytag: member="QwtKnob::borderWidth" ref="a3e19de6a4762aeaf2b95266b20961574" args="() const " -->
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<td class="memname">int QwtKnob::borderWidth </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return the border width. </p>
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<a class="anchor" id="abccdba2f96c353ecc004adfcb19d2db9"></a><!-- doxytag: member="QwtKnob::changeEvent" ref="abccdba2f96c353ecc004adfcb19d2db9" args="(QEvent *)" -->
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<td class="memname">void QwtKnob::changeEvent </td>
<td>(</td>
<td class="paramtype">QEvent * </td>
<td class="paramname"><em>event</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
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<p>Handle QEvent::StyleChange and QEvent::FontChange; </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">event</td><td>Change event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a5ebc1ef5761b8db6d67820fc14cb89d5"></a><!-- doxytag: member="QwtKnob::drawKnob" ref="a5ebc1ef5761b8db6d67820fc14cb89d5" args="(QPainter *, const QRectF &) const " -->
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<td class="memname">void QwtKnob::drawKnob </td>
<td>(</td>
<td class="paramtype">QPainter * </td>
<td class="paramname"><em>painter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>knobRect</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Draw the knob. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">painter</td><td>painter </td></tr>
<tr><td class="paramname">knobRect</td><td>Bounding rectangle of the knob (without scale) </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a2b0523757918e335fe444df702972f3e"></a><!-- doxytag: member="QwtKnob::drawMarker" ref="a2b0523757918e335fe444df702972f3e" args="(QPainter *, const QRectF &, double arc) const " -->
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<td class="memname">void QwtKnob::drawMarker </td>
<td>(</td>
<td class="paramtype">QPainter * </td>
<td class="paramname"><em>painter</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QRectF & </td>
<td class="paramname"><em>rect</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>angle</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Draw the marker at the knob's front. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">painter</td><td>Painter </td></tr>
<tr><td class="paramname">rect</td><td>Bounding rectangle of the knob without scale </td></tr>
<tr><td class="paramname">angle</td><td>Angle of the marker in degrees </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a595c04ed863eb7f0adaf94440087fe0a"></a><!-- doxytag: member="QwtKnob::exactPrevValue" ref="a595c04ed863eb7f0adaf94440087fe0a" args="() const " -->
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<td class="memname">double QwtDoubleRange::exactPrevValue </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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<p>Returns the exact previous value. </p>
</div>
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<a class="anchor" id="a705b76d28882d37bc5313d6c38c9a720"></a><!-- doxytag: member="QwtKnob::exactValue" ref="a705b76d28882d37bc5313d6c38c9a720" args="() const " -->
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<td class="memname">double QwtDoubleRange::exactValue </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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<p>Returns the exact value. </p>
<p>The exact value is the value which <a class="el" href="class_qwt_double_range.html#a7777cf257c812579c4891512f1b6cad0" title="Returns the current value.">QwtDoubleRange::value</a> would return if the value were not adjusted to the step raster. It differs from the current value only if <a class="el" href="class_qwt_double_range.html#a63bc8ea5e7ecd776b7d32d21db1ea668" title="Adjust the value to the closest point in the step raster.">fitValue()</a> or <a class="el" href="class_qwt_double_range.html#a299c35c72e9b69f5a0e3dcd2b7da775b" title="Increment the value by a specified number of steps.">incValue()</a> have been used before. This function is intended for internal use in derived classes. </p>
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<a class="anchor" id="a50ed1e265beaa1c8adbe718caa023e50"></a><!-- doxytag: member="QwtKnob::fitValue" ref="a50ed1e265beaa1c8adbe718caa023e50" args="(double val)" -->
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<td class="memname">void QwtAbstractSlider::fitValue </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
<td><code> [virtual, slot, inherited]</code></td>
</tr>
</table>
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<p>Set the slider's value to the nearest integer multiple of the step size. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Value </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#ac3713f8989b647cb79f0a5894991e36a" title="Move the slider to a specified value.">setValue()</a>, <a class="el" href="class_qwt_abstract_slider.html#a5fccdb2ca370bba9ed4d29864fd80788" title="Increment the value by a specified number of steps.">incValue()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_double_range.html#a63bc8ea5e7ecd776b7d32d21db1ea668">QwtDoubleRange</a>.</p>
</div>
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<a class="anchor" id="a42e3a55eb22c249311e5cacefb22ae71"></a><!-- doxytag: member="QwtKnob::getScrollMode" ref="a42e3a55eb22c249311e5cacefb22ae71" args="(const QPoint &, QwtAbstractSlider::ScrollMode &, int &direction) const " -->
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<td class="memname">void QwtKnob::getScrollMode </td>
<td>(</td>
<td class="paramtype">const QPoint & </td>
<td class="paramname"><em>pos</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154">QwtAbstractSlider::ScrollMode</a> & </td>
<td class="paramname"><em>scrollMode</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>direction</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual]</code></td>
</tr>
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<p>Set the scrolling mode and direction. </p>
<p>Called by <a class="el" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets.">QwtAbstractSlider</a> </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">pos</td><td>Point in question </td></tr>
<tr><td class="paramname">scrollMode</td><td>Scrolling mode </td></tr>
<tr><td class="paramname">direction</td><td>Direction </td></tr>
</table>
</dd>
</dl>
<p>Implements <a class="el" href="class_qwt_abstract_slider.html#a4124aa3b1e462d57ea2693214e66da0b">QwtAbstractSlider</a>.</p>
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<a class="anchor" id="a8bc3dd547ed410548b451f074f633546"></a><!-- doxytag: member="QwtKnob::getValue" ref="a8bc3dd547ed410548b451f074f633546" args="(const QPoint &p)" -->
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<td class="memname">double QwtKnob::getValue </td>
<td>(</td>
<td class="paramtype">const QPoint & </td>
<td class="paramname"><em>pos</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
</tr>
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<p>Determine the value corresponding to a specified position. </p>
<p>Called by <a class="el" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets.">QwtAbstractSlider</a> </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">pos</td><td>point </td></tr>
</table>
</dd>
</dl>
<p>Implements <a class="el" href="class_qwt_abstract_slider.html#a6e26a993536813c2d9846a28f3c27aa7">QwtAbstractSlider</a>.</p>
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<a class="anchor" id="a19b85337d4ab0b5f0579b02e4fb29a8f"></a><!-- doxytag: member="QwtKnob::incPages" ref="a19b85337d4ab0b5f0579b02e4fb29a8f" args="(int)" -->
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<td class="memname">void QwtDoubleRange::incPages </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nPages</em></td><td>)</td>
<td><code> [virtual, inherited]</code></td>
</tr>
</table>
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<p>Increment the value by a specified number of pages. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">nPages</td><td>Number of pages to increment. A negative number decrements the value. </td></tr>
</table>
</dd>
</dl>
<dl class="warning"><dt><b>Warning:</b></dt><dd>The Page size is specified in the constructor. </dd></dl>
</div>
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<a class="anchor" id="a5fccdb2ca370bba9ed4d29864fd80788"></a><!-- doxytag: member="QwtKnob::incValue" ref="a5fccdb2ca370bba9ed4d29864fd80788" args="(int steps)" -->
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<td class="memname">void QwtAbstractSlider::incValue </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>steps</em></td><td>)</td>
<td><code> [virtual, slot, inherited]</code></td>
</tr>
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<p>Increment the value by a specified number of steps. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">steps</td><td>number of steps </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#ac3713f8989b647cb79f0a5894991e36a" title="Move the slider to a specified value.">setValue()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_double_range.html#a299c35c72e9b69f5a0e3dcd2b7da775b">QwtDoubleRange</a>.</p>
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<a class="anchor" id="a040fd1fd03592c524314bf4b5539608d"></a><!-- doxytag: member="QwtKnob::isReadOnly" ref="a040fd1fd03592c524314bf4b5539608d" args="() const " -->
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<td class="memname">bool QwtAbstractSlider::isReadOnly </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>In read only mode the slider can't be controlled by mouse or keyboard.</p>
<dl class="return"><dt><b>Returns:</b></dt><dd>true if read only </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a9cc63283a2d4f0bcbb67fd331629a318">setReadOnly()</a> </dd></dl>
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<a class="anchor" id="a87c750f098cb5f70306a7908339cb88e"></a><!-- doxytag: member="QwtKnob::isValid" ref="a87c750f098cb5f70306a7908339cb88e" args="() const " -->
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<td class="memname">bool QwtAbstractSlider::isValid </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inline, inherited]</code></td>
</tr>
</table>
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<dl class="see"><dt><b>See also:</b></dt><dd>QwtDblRange::isValid() </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_double_range.html#afc4921deb3f68a64cc08b0654a040bc6">QwtDoubleRange</a>.</p>
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<a class="anchor" id="a4d55f8ffab93d8610bc026e00e3bdc81"></a><!-- doxytag: member="QwtKnob::keyPressEvent" ref="a4d55f8ffab93d8610bc026e00e3bdc81" args="(QKeyEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::keyPressEvent </td>
<td>(</td>
<td class="paramtype">QKeyEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
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<p>Handles key events</p>
<ul>
<li>Key_Down, KeyLeft<br/>
Decrement by 1</li>
<li>Key_Up, Key_Right<br/>
Increment by 1</li>
</ul>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Key event </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a040fd1fd03592c524314bf4b5539608d">isReadOnly()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_compass.html#ad4f31e6837ea045834fe67d192a4209d">QwtCompass</a>, and <a class="el" href="class_qwt_dial.html#a61a2341a76abc20ea5bd72a0485be136">QwtDial</a>.</p>
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<a class="anchor" id="a6f8ec8b610b500990dff31f370cab8ba"></a><!-- doxytag: member="QwtKnob::knobStyle" ref="a6f8ec8b610b500990dff31f370cab8ba" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">QwtKnob::KnobStyle</a> QwtKnob::knobStyle </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Marker type of the knob </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a3e69357a595407a73c23df7ad68bf117" title="Set the knob type.">setKnobStyle()</a>, <a class="el" href="class_qwt_knob.html#a2e0a17648602bab3b1aaabfc3ba19441" title="Set the knob's border width.">setBorderWidth()</a> </dd></dl>
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<a class="anchor" id="aa9470eed740c7175c7ccfc4406eb5fc2"></a><!-- doxytag: member="QwtKnob::knobWidth" ref="aa9470eed740c7175c7ccfc4406eb5fc2" args="() const " -->
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<td class="memname">int QwtKnob::knobWidth </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return the width of the knob. </p>
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<a class="anchor" id="a502582b7f31df549e07664e874607a1e"></a><!-- doxytag: member="QwtKnob::markerSize" ref="a502582b7f31df549e07664e874607a1e" args="() const " -->
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<td class="memname">int QwtKnob::markerSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
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<p>Return the marker size. </p>
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<a class="anchor" id="af7d2aaab6614c8e49974823333215bf7"></a><!-- doxytag: member="QwtKnob::markerStyle" ref="af7d2aaab6614c8e49974823333215bf7" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">QwtKnob::MarkerStyle</a> QwtKnob::markerStyle </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Marker type of the knob </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#aaa80356a3e3d3703070a6f2b1802646c" title="Set the marker type of the knob.">setMarkerStyle()</a>, <a class="el" href="class_qwt_knob.html#a88e06ffddd31d3c0df04771793173353" title="Set the size of the marker.">setMarkerSize()</a> </dd></dl>
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<a class="anchor" id="a130105fc2001c53cea65f21b03f0b5db"></a><!-- doxytag: member="QwtKnob::mass" ref="a130105fc2001c53cea65f21b03f0b5db" args="() const " -->
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<td class="memname">double QwtAbstractSlider::mass </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual, inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>mass </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a305b137fe4dd80cba307fe1b4bd46272" title="Set the slider's mass for flywheel effect.">setMass()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_wheel.html#a55de1496f0eef04da9bc293306a40df6">QwtWheel</a>.</p>
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<a class="anchor" id="a215275a1a8b4218a424ee8444c7fe409"></a><!-- doxytag: member="QwtKnob::maxValue" ref="a215275a1a8b4218a424ee8444c7fe409" args="() const " -->
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<td class="memname">double QwtDoubleRange::maxValue </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>Returns the value of the second border of the range. </p>
<p>maxValue returns the value which has been specified as the second parameter in <a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21" title="Specify range and step size.">QwtDoubleRange::setRange</a>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21" title="Specify range and step size.">setRange()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_counter.html#a1db7484bea02c18681f9d628cd88695f">QwtCounter</a>.</p>
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<a class="anchor" id="a03d014cd8d025bfeab6e004c53ab6e5b"></a><!-- doxytag: member="QwtKnob::minimumSizeHint" ref="a03d014cd8d025bfeab6e004c53ab6e5b" args="() const " -->
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<td class="memname">QSize QwtKnob::minimumSizeHint </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<p>Return a minimum size hint. </p>
<dl class="warning"><dt><b>Warning:</b></dt><dd>The return value of <a class="el" href="class_qwt_knob.html#a03d014cd8d025bfeab6e004c53ab6e5b" title="Return a minimum size hint.">QwtKnob::minimumSizeHint()</a> depends on the font and the scale. </dd></dl>
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<a class="anchor" id="a8b8650a6f8a96144d3af21207ee71637"></a><!-- doxytag: member="QwtKnob::minValue" ref="a8b8650a6f8a96144d3af21207ee71637" args="() const " -->
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<td class="memname">double QwtDoubleRange::minValue </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>Returns the value at the first border of the range. </p>
<p>minValue returns the value which has been specified as the first parameter in <a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21" title="Specify range and step size.">setRange()</a>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21" title="Specify range and step size.">setRange()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_counter.html#aa8ccc5f0626ae1ad4f542b0fdb51cc08">QwtCounter</a>.</p>
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<a class="anchor" id="af9599b94c6771181ede59a84e33c0e6e"></a><!-- doxytag: member="QwtKnob::mouseMoveEvent" ref="af9599b94c6771181ede59a84e33c0e6e" args="(QMouseEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::mouseMoveEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
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<p>Mouse Move Event handler </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Mouse event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a138397a755057932b5da72f526fc74e6"></a><!-- doxytag: member="QwtKnob::mouseOffset" ref="a138397a755057932b5da72f526fc74e6" args="() const " -->
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<td class="memname">double QwtAbstractSlider::mouseOffset </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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</table>
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<div class="memdoc">
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a120e5a03094ef0baf793000972a21722">setMouseOffset()</a> </dd></dl>
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</div>
<a class="anchor" id="a60e33a71d34b23e9ebefebaa24cdd8c2"></a><!-- doxytag: member="QwtKnob::mousePressEvent" ref="a60e33a71d34b23e9ebefebaa24cdd8c2" args="(QMouseEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::mousePressEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Mouse press event handler </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Mouse event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a8f27604396c9d2544931638b806c13e3"></a><!-- doxytag: member="QwtKnob::mouseReleaseEvent" ref="a8f27604396c9d2544931638b806c13e3" args="(QMouseEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::mouseReleaseEvent </td>
<td>(</td>
<td class="paramtype">QMouseEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Mouse Release Event handler </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Mouse event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a4d2521b9c31ec64b71d8e1771b156d88"></a><!-- doxytag: member="QwtKnob::orientation" ref="a4d2521b9c31ec64b71d8e1771b156d88" args="() const " -->
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<td class="memname">Qt::Orientation QwtAbstractSlider::orientation </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Orientation </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a6b0fdc50bfbb0a8bb40f0dc6bf493b2c" title="Set the orientation.">setOrientation()</a> </dd></dl>
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<a class="anchor" id="ac12a5c43dc5839913379982ec40a39d8"></a><!-- doxytag: member="QwtKnob::pageSize" ref="ac12a5c43dc5839913379982ec40a39d8" args="() const " -->
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<td class="memname">int QwtDoubleRange::pageSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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</table>
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<p>Returns the page size in steps. </p>
</div>
</div>
<a class="anchor" id="aac9eb31c18408aaa224f5ad040631384"></a><!-- doxytag: member="QwtKnob::paintEvent" ref="aac9eb31c18408aaa224f5ad040631384" args="(QPaintEvent *)" -->
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<td class="memname">void QwtKnob::paintEvent </td>
<td>(</td>
<td class="paramtype">QPaintEvent * </td>
<td class="paramname"><em>event</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Repaint the knob </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">event</td><td>Paint event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="ad1efbcbf29dbc74f3f378292b76b007b"></a><!-- doxytag: member="QwtKnob::periodic" ref="ad1efbcbf29dbc74f3f378292b76b007b" args="() const " -->
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<td class="memname">bool QwtDoubleRange::periodic </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>Returns true if the range is periodic. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_range.html#a95fa6a4e44fc47726d939155bb6f6f1f" title="Make the range periodic.">setPeriodic()</a> </dd></dl>
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<a class="anchor" id="a38768187bef94dd5e5a2c8664746b365"></a><!-- doxytag: member="QwtKnob::prevValue" ref="a38768187bef94dd5e5a2c8664746b365" args="() const " -->
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<td class="memname">double QwtDoubleRange::prevValue </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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<p>Returns the previous value. </p>
</div>
</div>
<a class="anchor" id="abd7c6b312b41882a3b509aadc9ada46e"></a><!-- doxytag: member="QwtKnob::rescale" ref="abd7c6b312b41882a3b509aadc9ada46e" args="(double vmin, double vmax, double step=0.0)" -->
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<td class="memname">void QwtAbstractScale::rescale </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmin</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmax</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>stepSize</em> = <code>0.0</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [protected, inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Recalculate the scale division and update the scale draw.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">vmin</td><td>Lower limit of the scale interval </td></tr>
<tr><td class="paramname">vmax</td><td>Upper limit of the scale interval </td></tr>
<tr><td class="paramname">stepSize</td><td>Major step size</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#a0dbb7bdc557c0a7b163643e41970ed6a" title="Notify changed scale.">scaleChange()</a> </dd></dl>
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<a class="anchor" id="abf47fbc76e68791d3012499198285662"></a><!-- doxytag: member="QwtKnob::resizeEvent" ref="abf47fbc76e68791d3012499198285662" args="(QResizeEvent *)" -->
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<td class="memname">void QwtKnob::resizeEvent </td>
<td>(</td>
<td class="paramtype">QResizeEvent * </td>
<td class="paramname"><em>event</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Qt Resize Event </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">event</td><td>Resize event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a3154037eec8c76c24577b8bf1d92b871"></a><!-- doxytag: member="QwtKnob::scaleDraw" ref="a3154037eec8c76c24577b8bf1d92b871" args="()" -->
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<td class="memname"><a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * QwtKnob::scaleDraw </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>the scale draw of the knob </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#afea44f23da7f79a2b790178850c26edd">setScaleDraw()</a> </dd></dl>
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<a class="anchor" id="aa9c4c23e20fc59b3ca2bfed9fe1e3719"></a><!-- doxytag: member="QwtKnob::scaleDraw" ref="aa9c4c23e20fc59b3ca2bfed9fe1e3719" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * QwtKnob::scaleDraw </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>the scale draw of the knob </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#afea44f23da7f79a2b790178850c26edd">setScaleDraw()</a> </dd></dl>
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<a class="anchor" id="a5b8084cc735933ce9338fd2df1126f0e"></a><!-- doxytag: member="QwtKnob::scaleEngine" ref="a5b8084cc735933ce9338fd2df1126f0e" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * QwtAbstractScale::scaleEngine </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Scale engine </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f" title="Set a scale engine.">setScaleEngine()</a> </dd></dl>
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<a class="anchor" id="aea3b9d4912f1c28671f232e4100936d7"></a><!-- doxytag: member="QwtKnob::scaleEngine" ref="aea3b9d4912f1c28671f232e4100936d7" args="()" -->
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<td class="memname"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * QwtAbstractScale::scaleEngine </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Scale engine </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa00f44140af3f2b7595cb6e23371198f" title="Set a scale engine.">setScaleEngine()</a> </dd></dl>
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<a class="anchor" id="a68f120e12e373796b5d74199a9b8a4b0"></a><!-- doxytag: member="QwtKnob::scaleMap" ref="a68f120e12e373796b5d74199a9b8a4b0" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_scale_map.html">QwtScaleMap</a> & QwtAbstractScale::scaleMap </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#aa61afdff037ef745a6dad686537cdb96">abstractScaleDraw()</a>-><a class="el" href="class_qwt_abstract_scale.html#a68f120e12e373796b5d74199a9b8a4b0">scaleMap()</a> </dd></dl>
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<a class="anchor" id="a4cfbcd9880297b1ca28fa824e3f4c3e6"></a><!-- doxytag: member="QwtKnob::scaleMaxMajor" ref="a4cfbcd9880297b1ca28fa824e3f4c3e6" args="() const " -->
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<td class="memname">int QwtAbstractScale::scaleMaxMajor </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Max. number of major tick intervals The default value is 5. </dd></dl>
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<a class="anchor" id="a5b23fafbb56bb43fd241c1839256357f"></a><!-- doxytag: member="QwtKnob::scaleMaxMinor" ref="a5b23fafbb56bb43fd241c1839256357f" args="() const " -->
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<td class="memname">int QwtAbstractScale::scaleMaxMinor </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>Max. number of minor tick intervals The default value is 3. </dd></dl>
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<a class="anchor" id="a4a1b9e022180a8567f09632388002396"></a><!-- doxytag: member="QwtKnob::scrollMode" ref="a4a1b9e022180a8567f09632388002396" args="() const " -->
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<td class="memname">int QwtAbstractSlider::scrollMode </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [protected, inherited]</code></td>
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</table>
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<p>sa ScrollMode </p>
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<a class="anchor" id="a950c5bf521dc704b78f76c7951346288"></a><!-- doxytag: member="QwtKnob::setAbstractScaleDraw" ref="a950c5bf521dc704b78f76c7951346288" args="(QwtAbstractScaleDraw *)" -->
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<td class="memname">void QwtAbstractScale::setAbstractScaleDraw </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_abstract_scale_draw.html">QwtAbstractScaleDraw</a> * </td>
<td class="paramname"><em>scaleDraw</em></td><td>)</td>
<td><code> [protected, inherited]</code></td>
</tr>
</table>
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<p>Set a scale draw. </p>
<p>scaleDraw has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setAbstractScaleDraw. </p>
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<a class="anchor" id="ade952bd5cbde1dba015bc16b880e3a28"></a><!-- doxytag: member="QwtKnob::setAutoScale" ref="ade952bd5cbde1dba015bc16b880e3a28" args="()" -->
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<td class="memname">void QwtAbstractScale::setAutoScale </td>
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<td class="paramname"></td><td>)</td>
<td><code> [inherited]</code></td>
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<p>Advise the widget to control the scale range internally. </p>
<p>Autoscaling is on by default. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#a91af529248b556ef130add4bcfc60bb2" title="Specify a scale.">setScale()</a>, <a class="el" href="class_qwt_abstract_scale.html#a01f1f43502a8ba14988a0bd3142d94b1">autoScale()</a> </dd></dl>
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<a class="anchor" id="a2e0a17648602bab3b1aaabfc3ba19441"></a><!-- doxytag: member="QwtKnob::setBorderWidth" ref="a2e0a17648602bab3b1aaabfc3ba19441" args="(int bw)" -->
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<td class="memname">void QwtKnob::setBorderWidth </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>borderWidth</em></td><td>)</td>
<td></td>
</tr>
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<p>Set the knob's border width. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">borderWidth</td><td>new border width </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a3e69357a595407a73c23df7ad68bf117"></a><!-- doxytag: member="QwtKnob::setKnobStyle" ref="a3e69357a595407a73c23df7ad68bf117" args="(KnobStyle)" -->
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<td class="memname">void QwtKnob::setKnobStyle </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">KnobStyle</a> </td>
<td class="paramname"><em>knobStyle</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>Set the knob type. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">knobStyle</td><td>Knob type </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a6f8ec8b610b500990dff31f370cab8ba">knobStyle()</a>, <a class="el" href="class_qwt_knob.html#a2e0a17648602bab3b1aaabfc3ba19441" title="Set the knob's border width.">setBorderWidth()</a> </dd></dl>
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<a class="anchor" id="a58e2966b2ebe5631991f293ab61558f3"></a><!-- doxytag: member="QwtKnob::setKnobWidth" ref="a58e2966b2ebe5631991f293ab61558f3" args="(int w)" -->
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<td class="memname">void QwtKnob::setKnobWidth </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>width</em></td><td>)</td>
<td></td>
</tr>
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<p>Change the knob's width. </p>
<p>The specified width must be >= 5, or it will be clipped. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">width</td><td>New width </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a88e06ffddd31d3c0df04771793173353"></a><!-- doxytag: member="QwtKnob::setMarkerSize" ref="a88e06ffddd31d3c0df04771793173353" args="(int)" -->
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<td class="memname">void QwtKnob::setMarkerSize </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>size</em></td><td>)</td>
<td></td>
</tr>
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<p>Set the size of the marker. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a502582b7f31df549e07664e874607a1e" title="Return the marker size.">markerSize()</a>, <a class="el" href="class_qwt_knob.html#af7d2aaab6614c8e49974823333215bf7">markerStyle()</a> </dd></dl>
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<a class="anchor" id="aaa80356a3e3d3703070a6f2b1802646c"></a><!-- doxytag: member="QwtKnob::setMarkerStyle" ref="aaa80356a3e3d3703070a6f2b1802646c" args="(MarkerStyle)" -->
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<td class="memname">void QwtKnob::setMarkerStyle </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">MarkerStyle</a> </td>
<td class="paramname"><em>markerStyle</em></td><td>)</td>
<td></td>
</tr>
</table>
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<p>Set the marker type of the knob. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">markerStyle</td><td>Marker type </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#af7d2aaab6614c8e49974823333215bf7">markerStyle()</a>, <a class="el" href="class_qwt_knob.html#a88e06ffddd31d3c0df04771793173353" title="Set the size of the marker.">setMarkerSize()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a305b137fe4dd80cba307fe1b4bd46272"></a><!-- doxytag: member="QwtKnob::setMass" ref="a305b137fe4dd80cba307fe1b4bd46272" args="(double val)" -->
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<td class="memname">void QwtAbstractSlider::setMass </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>val</em></td><td>)</td>
<td><code> [virtual, inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Set the slider's mass for flywheel effect. </p>
<p>If the slider's mass is greater then 0, it will continue to move after the mouse button has been released. Its speed decreases with time at a rate depending on the slider's mass. A large mass means that it will continue to move for a long time.</p>
<p>Derived widgets may overload this function to make it public.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">val</td><td>New mass in kg</td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a130105fc2001c53cea65f21b03f0b5db">mass()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_wheel.html#a2af8b9b10ebff58b351027208c1e2b86">QwtWheel</a>.</p>
</div>
</div>
<a class="anchor" id="a120e5a03094ef0baf793000972a21722"></a><!-- doxytag: member="QwtKnob::setMouseOffset" ref="a120e5a03094ef0baf793000972a21722" args="(double)" -->
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<td class="memname">void QwtAbstractSlider::setMouseOffset </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>offset</em></td><td>)</td>
<td><code> [protected, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a138397a755057932b5da72f526fc74e6">mouseOffset()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a6b0fdc50bfbb0a8bb40f0dc6bf493b2c"></a><!-- doxytag: member="QwtKnob::setOrientation" ref="a6b0fdc50bfbb0a8bb40f0dc6bf493b2c" args="(Qt::Orientation o)" -->
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<td class="memname">void QwtAbstractSlider::setOrientation </td>
<td>(</td>
<td class="paramtype">Qt::Orientation </td>
<td class="paramname"><em>o</em></td><td>)</td>
<td><code> [virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set the orientation. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">o</td><td>Orientation. Allowed values are Qt::Horizontal and Qt::Vertical. </td></tr>
</table>
</dd>
</dl>
<p>Reimplemented in <a class="el" href="class_qwt_slider.html#a3a5d51f56dee5e51dc37bb6f546b16b5">QwtSlider</a>, and <a class="el" href="class_qwt_wheel.html#acae74c8161fd1df728f26253dd1defa8">QwtWheel</a>.</p>
</div>
</div>
<a class="anchor" id="a95fa6a4e44fc47726d939155bb6f6f1f"></a><!-- doxytag: member="QwtKnob::setPeriodic" ref="a95fa6a4e44fc47726d939155bb6f6f1f" args="(bool tf)" -->
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<td class="memname">void QwtDoubleRange::setPeriodic </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>tf</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Make the range periodic. </p>
<p>When the range is periodic, the value will be set to a point inside the interval such that</p>
<div class="fragment"><pre class="fragment">point = value + n * width </pre></div><p>if the user tries to set a new value which is outside the range. If the range is nonperiodic (the default), values outside the range will be clipped.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">tf</td><td>true for a periodic range </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="af9849c5c21412c7308cac6ad6a420e47"></a><!-- doxytag: member="QwtKnob::setPosition" ref="af9849c5c21412c7308cac6ad6a420e47" args="(const QPoint &)" -->
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<td class="memname">void QwtAbstractSlider::setPosition </td>
<td>(</td>
<td class="paramtype">const QPoint & </td>
<td class="paramname"><em>p</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
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<p>Move the slider to a specified point, adjust the value and emit signals if necessary. </p>
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<a class="anchor" id="a43891011664b74b8e5454763a3f5ff21"></a><!-- doxytag: member="QwtKnob::setRange" ref="a43891011664b74b8e5454763a3f5ff21" args="(double vmin, double vmax, double vstep=0.0, int pagesize=1)" -->
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<td class="memname">void QwtDoubleRange::setRange </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmin</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmax</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>vstep</em> = <code>0.0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>pageSize</em> = <code>1</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Specify range and step size. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">vmin</td><td>lower boundary of the interval </td></tr>
<tr><td class="paramname">vmax</td><td>higher boundary of the interval </td></tr>
<tr><td class="paramname">vstep</td><td>step width </td></tr>
<tr><td class="paramname">pageSize</td><td>page size in steps </td></tr>
</table>
</dd>
</dl>
<dl class="warning"><dt><b>Warning:</b></dt><dd><ul>
<li>A change of the range changes the value if it lies outside the new range. The current value will *not* be adjusted to the new step raster. </li>
<li>vmax < vmin is allowed. </li>
<li>If the step size is left out or set to zero, it will be set to 1/100 of the interval length. </li>
<li>If the step size has an absurd value, it will be corrected to a better one. </li>
</ul>
</dd></dl>
</div>
</div>
<a class="anchor" id="a9cc63283a2d4f0bcbb67fd331629a318"></a><!-- doxytag: member="QwtKnob::setReadOnly" ref="a9cc63283a2d4f0bcbb67fd331629a318" args="(bool)" -->
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<td class="memname">void QwtAbstractSlider::setReadOnly </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>readOnly</em></td><td>)</td>
<td><code> [virtual, slot, inherited]</code></td>
</tr>
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<p>En/Disable read only mode</p>
<p>In read only mode the slider can't be controlled by mouse or keyboard.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">readOnly</td><td>Enables in case of true </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a040fd1fd03592c524314bf4b5539608d">isReadOnly()</a> </dd></dl>
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<a class="anchor" id="a91af529248b556ef130add4bcfc60bb2"></a><!-- doxytag: member="QwtKnob::setScale" ref="a91af529248b556ef130add4bcfc60bb2" args="(double vmin, double vmax, double step=0.0)" -->
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<td class="memname">void QwtAbstractScale::setScale </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmin</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>vmax</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>stepSize</em> = <code>0.0</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Specify a scale. </p>
<p>Disable autoscaling and define a scale by an interval and a step size</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">vmin</td><td>lower limit of the scale interval </td></tr>
<tr><td class="paramname">vmax</td><td>upper limit of the scale interval </td></tr>
<tr><td class="paramname">stepSize</td><td>major step size </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#ade952bd5cbde1dba015bc16b880e3a28" title="Advise the widget to control the scale range internally.">setAutoScale()</a> </dd></dl>
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<a class="anchor" id="a1e85d35fda2e18bad16e8aa43dbe99b4"></a><!-- doxytag: member="QwtKnob::setScale" ref="a1e85d35fda2e18bad16e8aa43dbe99b4" args="(const QwtInterval &, double step=0.0)" -->
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<td class="memname">void QwtAbstractScale::setScale </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_interval.html">QwtInterval</a> & </td>
<td class="paramname"><em>interval</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>stepSize</em> = <code>0.0</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Specify a scale. </p>
<p>Disable autoscaling and define a scale by an interval and a step size</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">interval</td><td>Interval </td></tr>
<tr><td class="paramname">stepSize</td><td>major step size </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#ade952bd5cbde1dba015bc16b880e3a28" title="Advise the widget to control the scale range internally.">setAutoScale()</a> </dd></dl>
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<a class="anchor" id="ad002e1a352ecf85c1a8595a138d42db7"></a><!-- doxytag: member="QwtKnob::setScale" ref="ad002e1a352ecf85c1a8595a138d42db7" args="(const QwtScaleDiv &)" -->
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<td class="memname">void QwtAbstractScale::setScale </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> & </td>
<td class="paramname"><em>scaleDiv</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<div class="memdoc">
<p>Specify a scale. </p>
<p>Disable autoscaling and define a scale by a scale division</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">scaleDiv</td><td>Scale division </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale.html#ade952bd5cbde1dba015bc16b880e3a28" title="Advise the widget to control the scale range internally.">setAutoScale()</a> </dd></dl>
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<a class="anchor" id="afea44f23da7f79a2b790178850c26edd"></a><!-- doxytag: member="QwtKnob::setScaleDraw" ref="afea44f23da7f79a2b790178850c26edd" args="(QwtRoundScaleDraw *)" -->
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<td class="memname">void QwtKnob::setScaleDraw </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> * </td>
<td class="paramname"><em>scaleDraw</em></td><td>)</td>
<td></td>
</tr>
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<p>Change the scale draw of the knob</p>
<p>For changing the labels of the scales, it is necessary to derive from <a class="el" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a> and overload <a class="el" href="class_qwt_abstract_scale_draw.html#a4ff88bc827dd6c6ca9298de13483b61f" title="Convert a value into its representing label.">QwtRoundScaleDraw::label()</a>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a3154037eec8c76c24577b8bf1d92b871">scaleDraw()</a> </dd></dl>
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<a class="anchor" id="aa00f44140af3f2b7595cb6e23371198f"></a><!-- doxytag: member="QwtKnob::setScaleEngine" ref="aa00f44140af3f2b7595cb6e23371198f" args="(QwtScaleEngine *)" -->
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<td class="memname">void QwtAbstractScale::setScaleEngine </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a> * </td>
<td class="paramname"><em>scaleEngine</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
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<p>Set a scale engine. </p>
<p>The scale engine is responsible for calculating the scale division, and in case of auto scaling how to align the scale.</p>
<p>scaleEngine has to be created with new and will be deleted in ~QwtAbstractScale or the next call of setScaleEngine. </p>
</div>
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<a class="anchor" id="a40fdb4572ad8fdec8b93766ff5f8eda8"></a><!-- doxytag: member="QwtKnob::setScaleMaxMajor" ref="a40fdb4572ad8fdec8b93766ff5f8eda8" args="(int ticks)" -->
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<td class="memname">void QwtAbstractScale::setScaleMaxMajor </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>ticks</em></td><td>)</td>
<td><code> [inherited]</code></td>
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<p>Set the maximum number of major tick intervals. </p>
<p>The scale's major ticks are calculated automatically such that the number of major intervals does not exceed ticks. The default value is 5. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ticks</td><td>maximal number of major ticks. </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale_draw.html" title="A abstract base class for drawing scales.">QwtAbstractScaleDraw</a> </dd></dl>
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<a class="anchor" id="a6520bb1e52571f865b21b3710786a4db"></a><!-- doxytag: member="QwtKnob::setScaleMaxMinor" ref="a6520bb1e52571f865b21b3710786a4db" args="(int ticks)" -->
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<td class="memname">void QwtAbstractScale::setScaleMaxMinor </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>ticks</em></td><td>)</td>
<td><code> [inherited]</code></td>
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<p>Set the maximum number of minor tick intervals. </p>
<p>The scale's minor ticks are calculated automatically such that the number of minor intervals does not exceed ticks. The default value is 3. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ticks</td><td></td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_scale_draw.html" title="A abstract base class for drawing scales.">QwtAbstractScaleDraw</a> </dd></dl>
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<a class="anchor" id="a29ed5fc66439def424a8ad773eea285d"></a><!-- doxytag: member="QwtKnob::setStep" ref="a29ed5fc66439def424a8ad773eea285d" args="(double)" -->
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<td class="memname">void QwtDoubleRange::setStep </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>vstep</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
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<p>Change the step raster. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">vstep</td><td>new step width </td></tr>
</table>
</dd>
</dl>
<dl class="warning"><dt><b>Warning:</b></dt><dd>The value will <em>not</em> be adjusted to the new step raster. </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_counter.html#ab885e97d0071877dfefb73feb0adc0cd">QwtCounter</a>.</p>
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<a class="anchor" id="a82c6a859d63833894a6e66f0fdbf8f05"></a><!-- doxytag: member="QwtKnob::setTotalAngle" ref="a82c6a859d63833894a6e66f0fdbf8f05" args="(double angle)" -->
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<td class="memname">void QwtKnob::setTotalAngle </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>angle</em></td><td>)</td>
<td></td>
</tr>
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<p>Set the total angle by which the knob can be turned. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">angle</td><td>Angle in degrees.</td></tr>
</table>
</dd>
</dl>
<p>The default angle is 270 degrees. It is possible to specify an angle of more than 360 degrees so that the knob can be turned several times around its axis. </p>
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<a class="anchor" id="a91c03aada61745d8924f47319afefee1"></a><!-- doxytag: member="QwtKnob::setTracking" ref="a91c03aada61745d8924f47319afefee1" args="(bool enable)" -->
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<td class="memname">void QwtAbstractSlider::setTracking </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>enable</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
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<p>Enables or disables tracking. </p>
<p>If tracking is enabled, the slider emits a <a class="el" href="class_qwt_abstract_slider.html#a6bc5c410cd56119c6ad50743c9a46af1" title="Notify a change of value.">valueChanged()</a> signal whenever its value changes (the default behaviour). If tracking is disabled, the value changed() signal will only be emitted if:</p>
<ul>
<li>
the user releases the mouse button and the value has changed or </li>
<li>
at the end of automatic scrolling.</li>
</ul>
<p>Tracking is enabled by default. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">enable</td><td><code>true</code> (enable) or <code>false</code> (disable) tracking. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a945ba36e1b8e20d362083f6737b0601d"></a><!-- doxytag: member="QwtKnob::setUpdateTime" ref="a945ba36e1b8e20d362083f6737b0601d" args="(int t)" -->
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<td class="memname">void QwtAbstractSlider::setUpdateTime </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>t</em></td><td>)</td>
<td><code> [inherited]</code></td>
</tr>
</table>
</div>
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<p>Specify the update interval for automatic scrolling. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>update interval in milliseconds </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a4124aa3b1e462d57ea2693214e66da0b" title="Determine what to do when the user presses a mouse button.">getScrollMode()</a> </dd></dl>
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<a class="anchor" id="a79d99f14ebd47dfede8135845c90cedb"></a><!-- doxytag: member="QwtKnob::setValid" ref="a79d99f14ebd47dfede8135845c90cedb" args="(bool valid)" -->
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<td class="memname">void QwtAbstractSlider::setValid </td>
<td>(</td>
<td class="paramtype">bool </td>
<td class="paramname"><em>valid</em></td><td>)</td>
<td><code> [inline, inherited]</code></td>
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<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">valid</td><td>true/false </td></tr>
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</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd>QwtDblRange::isValid() </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_double_range.html#a50a9c386663e170016a74cf8ee28ab8f">QwtDoubleRange</a>.</p>
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<a class="anchor" id="ac3713f8989b647cb79f0a5894991e36a"></a><!-- doxytag: member="QwtKnob::setValue" ref="ac3713f8989b647cb79f0a5894991e36a" args="(double val)" -->
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<td class="memname">void QwtAbstractSlider::setValue </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>val</em></td><td>)</td>
<td><code> [virtual, slot, inherited]</code></td>
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<p>Move the slider to a specified value. </p>
<p>This function can be used to move the slider to a value which is not an integer multiple of the step size. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">val</td><td>new value </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_abstract_slider.html#a50ed1e265beaa1c8adbe718caa023e50" title="Set the slider's value to the nearest integer multiple of the step size.">fitValue()</a> </dd></dl>
<p>Reimplemented from <a class="el" href="class_qwt_double_range.html#af6a3aa74c970a2bef29f0c1af99720e8">QwtDoubleRange</a>.</p>
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<a class="anchor" id="ac5f92af50fdcbf0b501f18efd07294fd"></a><!-- doxytag: member="QwtKnob::sizeHint" ref="ac5f92af50fdcbf0b501f18efd07294fd" args="() const " -->
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<td class="memname">QSize QwtKnob::sizeHint </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [virtual]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd><a class="el" href="class_qwt_knob.html#a03d014cd8d025bfeab6e004c53ab6e5b" title="Return a minimum size hint.">minimumSizeHint()</a> </dd></dl>
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<a class="anchor" id="ae59671d27931b545073e599a10967452"></a><!-- doxytag: member="QwtKnob::sliderMoved" ref="ae59671d27931b545073e599a10967452" args="(double value)" -->
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<td class="memname">void QwtAbstractSlider::sliderMoved </td>
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<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
<td><code> [signal, inherited]</code></td>
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<p>This signal is emitted when the user moves the slider with the mouse. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
</div>
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<a class="anchor" id="afd92a0c79c113b3c5e9952d12cff80f5"></a><!-- doxytag: member="QwtKnob::sliderPressed" ref="afd92a0c79c113b3c5e9952d12cff80f5" args="()" -->
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<td class="memname">void QwtAbstractSlider::sliderPressed </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [signal, inherited]</code></td>
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<p>This signal is emitted when the user presses the movable part of the slider (start ScrMouse Mode). </p>
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<a class="anchor" id="ab94184da7a029a5f586671251ff380ea"></a><!-- doxytag: member="QwtKnob::sliderReleased" ref="ab94184da7a029a5f586671251ff380ea" args="()" -->
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<td class="memname">void QwtAbstractSlider::sliderReleased </td>
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<td class="paramname"></td><td>)</td>
<td><code> [signal, inherited]</code></td>
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<p>This signal is emitted when the user releases the movable part of the slider. </p>
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<a class="anchor" id="a0cb8cc60548c10cb1d98e54387961967"></a><!-- doxytag: member="QwtKnob::step" ref="a0cb8cc60548c10cb1d98e54387961967" args="() const " -->
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<td class="memname">double QwtDoubleRange::step </td>
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<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<dl class="return"><dt><b>Returns:</b></dt><dd>the step size </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_range.html#a29ed5fc66439def424a8ad773eea285d" title="Change the step raster.">setStep()</a>, <a class="el" href="class_qwt_double_range.html#a43891011664b74b8e5454763a3f5ff21" title="Specify range and step size.">setRange()</a> </dd></dl>
<p>Reimplemented in <a class="el" href="class_qwt_counter.html#ab3496bdd6bdb093462bca588880d8c1b">QwtCounter</a>.</p>
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<a class="anchor" id="a86641f8755ed172ca4cf72d36df539ca"></a><!-- doxytag: member="QwtKnob::stepChange" ref="a86641f8755ed172ca4cf72d36df539ca" args="()" -->
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<td class="memname">void QwtDoubleRange::stepChange </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
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<p>Notify a change of the step size. </p>
<p>This virtual function is called whenever the step size changes. The default implementation does nothing. </p>
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<a class="anchor" id="ab648229c972d0c3258d30b0c43eb5efc"></a><!-- doxytag: member="QwtKnob::stopMoving" ref="ab648229c972d0c3258d30b0c43eb5efc" args="()" -->
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<td class="memname">void QwtAbstractSlider::stopMoving </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [inherited]</code></td>
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<p>Stop updating if automatic scrolling is active. </p>
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<a class="anchor" id="a26f4d684524925891113d46ffe383b5d"></a><!-- doxytag: member="QwtKnob::timerEvent" ref="a26f4d684524925891113d46ffe383b5d" args="(QTimerEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::timerEvent </td>
<td>(</td>
<td class="paramtype">QTimerEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
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<p>Qt timer event </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Timer event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a804d957c14e08bd9b132985c892ab853"></a><!-- doxytag: member="QwtKnob::totalAngle" ref="a804d957c14e08bd9b132985c892ab853" args="() const " -->
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<td class="memname">double QwtKnob::totalAngle </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<p>Return the total angle. </p>
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<a class="anchor" id="a7777cf257c812579c4891512f1b6cad0"></a><!-- doxytag: member="QwtKnob::value" ref="a7777cf257c812579c4891512f1b6cad0" args="() const " -->
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<td class="memname">double QwtDoubleRange::value </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const<code> [inherited]</code></td>
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<p>Returns the current value. </p>
<p>Reimplemented in <a class="el" href="class_qwt_counter.html#a121194fadd8cea929c1ac9509f27fe58">QwtCounter</a>.</p>
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<a class="anchor" id="a6bc5c410cd56119c6ad50743c9a46af1"></a><!-- doxytag: member="QwtKnob::valueChanged" ref="a6bc5c410cd56119c6ad50743c9a46af1" args="(double value)" -->
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<td class="memname">void QwtAbstractSlider::valueChanged </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>value</em></td><td>)</td>
<td><code> [signal, inherited]</code></td>
</tr>
</table>
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<p>Notify a change of value. </p>
<p>In the default setting (tracking enabled), this signal will be emitted every time the value changes ( see <a class="el" href="class_qwt_abstract_slider.html#a91c03aada61745d8924f47319afefee1" title="Enables or disables tracking.">setTracking()</a> ). </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>new value </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a25d5c9fe00c81e310304461fa6e8ec97"></a><!-- doxytag: member="QwtKnob::wheelEvent" ref="a25d5c9fe00c81e310304461fa6e8ec97" args="(QWheelEvent *e)" -->
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<td class="memname">void QwtAbstractSlider::wheelEvent </td>
<td>(</td>
<td class="paramtype">QWheelEvent * </td>
<td class="paramname"><em>e</em></td><td>)</td>
<td><code> [protected, virtual, inherited]</code></td>
</tr>
</table>
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<p>Wheel Event handler </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">e</td><td>Whell event </td></tr>
</table>
</dd>
</dl>
</div>
</div>
</div>
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