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<title>Qwt User's Guide: QwtCompassWindArrow Class Reference</title>
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<div id="projectname">Qwt User's Guide <span id="projectnumber">6.0.1</span></div>
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<h1>QwtCompassWindArrow Class Reference</h1> </div>
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<div class="contents">
<!-- doxytag: class="QwtCompassWindArrow" --><!-- doxytag: inherits="QwtDialNeedle" -->
<p>An indicator for the wind direction.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__dial__needle_8h_source.html">qwt_dial_needle.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtCompassWindArrow:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_compass_wind_arrow__inherit__graph.png" border="0" usemap="#_qwt_compass_wind_arrow_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_compass_wind_arrow_inherit__map" id="_qwt_compass_wind_arrow_inherit__map">
<area shape="rect" id="node2" href="class_qwt_dial_needle.html" title="Base class for needles that can be used in a QwtDial." alt="" coords="33,5,140,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_compass_wind_arrow-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_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8">Style</a> { <br/>
  <a class="el" href="class_qwt_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8a62b689f03b4e974660ce1241942b09fc">Style1</a>,
<br/>
  <a class="el" href="class_qwt_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8a44a462b3f0fa85bf3fa8dc421484e529">Style2</a>
<br/>
}</td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_needle.html#a425085086c4a8c7baff10b161616ee42">draw</a> (QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const QPalette & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_needle.html#a8b3c915032389261e07cc983b433166c">palette</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_compass_wind_arrow.html#a1b5931f43dd7e72fc5a3e2c9b509769d">QwtCompassWindArrow</a> (<a class="el" href="class_qwt_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8">Style</a>, const QColor &light=Qt::white, const QColor &dark=Qt::gray)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_needle.html#ae850883a64501136bca64d6ea2d084b9">setPalette</a> (const QPalette &)</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">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_needle.html#aaca9572717a1db10b1b6609571024688">drawKnob</a> (QPainter *, double width, const QBrush &, bool sunken) 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_compass_wind_arrow.html#a4e3b612f2de83ff416e34f62c1f0fd6c">drawNeedle</a> (QPainter *, double length, QPalette::ColorGroup) const </td></tr>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>An indicator for the wind direction. </p>
<p><a class="el" href="class_qwt_compass_wind_arrow.html" title="An indicator for the wind direction.">QwtCompassWindArrow</a> shows the direction where the wind comes from.</p>
<ul>
<li>QPalette::Light<br/>
Used for Style1, or the light half of Style2</li>
<li>QPalette::Dark<br/>
Used for the dark half of Style2</li>
</ul>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_dial.html" title="QwtDial class provides a rounded range control.">QwtDial</a>, <a class="el" href="class_qwt_compass.html" title="A Compass Widget.">QwtCompass</a> </dd></dl>
</div><hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="a55f11e28c9d87c0fb7c306ccd174f2a8"></a><!-- doxytag: member="QwtCompassWindArrow::Style" ref="a55f11e28c9d87c0fb7c306ccd174f2a8" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8">QwtCompassWindArrow::Style</a></td>
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<div class="memdoc">
<p>Style of the arrow. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="a55f11e28c9d87c0fb7c306ccd174f2a8a62b689f03b4e974660ce1241942b09fc"></a><!-- doxytag: member="Style1" ref="a55f11e28c9d87c0fb7c306ccd174f2a8a62b689f03b4e974660ce1241942b09fc" args="" -->Style1</em> </td><td>
<p>A needle pointing to the center. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a55f11e28c9d87c0fb7c306ccd174f2a8a44a462b3f0fa85bf3fa8dc421484e529"></a><!-- doxytag: member="Style2" ref="a55f11e28c9d87c0fb7c306ccd174f2a8a44a462b3f0fa85bf3fa8dc421484e529" args="" -->Style2</em> </td><td>
<p>A needle pointing to the center. </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a1b5931f43dd7e72fc5a3e2c9b509769d"></a><!-- doxytag: member="QwtCompassWindArrow::QwtCompassWindArrow" ref="a1b5931f43dd7e72fc5a3e2c9b509769d" args="(Style, const QColor &light=Qt::white, const QColor &dark=Qt::gray)" -->
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<td class="memname">QwtCompassWindArrow::QwtCompassWindArrow </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_compass_wind_arrow.html#a55f11e28c9d87c0fb7c306ccd174f2a8">Style</a> </td>
<td class="paramname"><em>style</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QColor & </td>
<td class="paramname"><em>light</em> = <code>Qt::white</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QColor & </td>
<td class="paramname"><em>dark</em> = <code>Qt::gray</code> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Constructor</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">style</td><td>Arrow style </td></tr>
<tr><td class="paramname">light</td><td>Light color </td></tr>
<tr><td class="paramname">dark</td><td>Dark color </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a425085086c4a8c7baff10b161616ee42"></a><!-- doxytag: member="QwtCompassWindArrow::draw" ref="a425085086c4a8c7baff10b161616ee42" args="(QPainter *painter, const QPointF &center, double length, double direction, QPalette::ColorGroup=QPalette::Active) const " -->
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<td class="memname">void QwtDialNeedle::draw </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 QPointF & </td>
<td class="paramname"><em>center</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>length</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double </td>
<td class="paramname"><em>direction</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">QPalette::ColorGroup </td>
<td class="paramname"><em>colorGroup</em> = <code>QPalette::Active</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [virtual, inherited]</code></td>
</tr>
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<div class="memdoc">
<p>Draw the needle</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">center</td><td>Center of the dial, start position for the needle </td></tr>
<tr><td class="paramname">length</td><td>Length of the needle </td></tr>
<tr><td class="paramname">direction</td><td>Direction of the needle, in degrees counter clockwise </td></tr>
<tr><td class="paramname">colorGroup</td><td>Color group, used for painting </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="aaca9572717a1db10b1b6609571024688"></a><!-- doxytag: member="QwtCompassWindArrow::drawKnob" ref="aaca9572717a1db10b1b6609571024688" args="(QPainter *, double width, const QBrush &, bool sunken) const " -->
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<td class="memname">void QwtDialNeedle::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">double </td>
<td class="paramname"><em>width</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QBrush & </td>
<td class="paramname"><em>brush</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>sunken</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Draw the knob. </p>
</div>
</div>
<a class="anchor" id="a4e3b612f2de83ff416e34f62c1f0fd6c"></a><!-- doxytag: member="QwtCompassWindArrow::drawNeedle" ref="a4e3b612f2de83ff416e34f62c1f0fd6c" args="(QPainter *, double length, QPalette::ColorGroup) const " -->
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<td class="memname">void QwtCompassWindArrow::drawNeedle </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">double </td>
<td class="paramname"><em>length</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">QPalette::ColorGroup </td>
<td class="paramname"><em>colorGroup</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const<code> [protected, virtual]</code></td>
</tr>
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<div class="memdoc">
<p>Draw the needle</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">length</td><td>Length of the needle </td></tr>
<tr><td class="paramname">colorGroup</td><td>Color group, used for painting </td></tr>
</table>
</dd>
</dl>
<p>Implements <a class="el" href="class_qwt_dial_needle.html#a1e4fee366fec1838edc18890d9957f2b">QwtDialNeedle</a>.</p>
</div>
</div>
<a class="anchor" id="a8b3c915032389261e07cc983b433166c"></a><!-- doxytag: member="QwtCompassWindArrow::palette" ref="a8b3c915032389261e07cc983b433166c" args="() const " -->
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<td class="memname">const QPalette & QwtDialNeedle::palette </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>the palette of the needle. </dd></dl>
</div>
</div>
<a class="anchor" id="ae850883a64501136bca64d6ea2d084b9"></a><!-- doxytag: member="QwtCompassWindArrow::setPalette" ref="ae850883a64501136bca64d6ea2d084b9" args="(const QPalette &)" -->
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<td class="memname">void QwtDialNeedle::setPalette </td>
<td>(</td>
<td class="paramtype">const QPalette & </td>
<td class="paramname"><em>palette</em></td><td>)</td>
<td><code> [virtual, inherited]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Sets the palette for the needle.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">palette</td><td>New Palette </td></tr>
</table>
</dd>
</dl>
</div>
</div>
</div>
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