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<title>Qwt User's Guide: QwtDialSimpleNeedle 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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<a href="#pub-types">Public Types</a> |
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<h1>QwtDialSimpleNeedle Class Reference</h1> </div>
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<!-- doxytag: class="QwtDialSimpleNeedle" --><!-- doxytag: inherits="QwtDialNeedle" -->
<p>A needle for dial widgets.
<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 QwtDialSimpleNeedle:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_dial_simple_needle__inherit__graph.png" border="0" usemap="#_qwt_dial_simple_needle_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_dial_simple_needle_inherit__map" id="_qwt_dial_simple_needle_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="25,5,132,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_dial_simple_needle-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_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584">Style</a> { <br/>
  <a class="el" href="class_qwt_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584a27ace220f0a5c6abd061c85bbdc9a663">Arrow</a>,
<br/>
  <a class="el" href="class_qwt_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584a580980e68ef26fc7d35962cf6f12a4b2">Ray</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_dial_simple_needle.html#a5f16b9298ecd293360a3ccf91d3dbfbb">QwtDialSimpleNeedle</a> (<a class="el" href="class_qwt_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584">Style</a>, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)</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 class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_simple_needle.html#ad7672543371e38c864e44d9240271c22">setWidth</a> (double width)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_dial_simple_needle.html#af7c8d5ed409364e4e67b7e40f1c0cfe2">width</a> () const </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_dial_simple_needle.html#a0eff8832707ff968d17eddf478d6a771">drawNeedle</a> (QPainter *, double length, QPalette::ColorGroup) const </td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A needle for dial widgets. </p>
<p>The following colors are used:</p>
<ul>
<li>QPalette::Mid<br/>
Pointer</li>
<li>QPalette::Base<br/>
Knob</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="ad28821489e04f1fd942e5bebc8a60584"></a><!-- doxytag: member="QwtDialSimpleNeedle::Style" ref="ad28821489e04f1fd942e5bebc8a60584" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584">QwtDialSimpleNeedle::Style</a></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Style of the needle. </p>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="ad28821489e04f1fd942e5bebc8a60584a27ace220f0a5c6abd061c85bbdc9a663"></a><!-- doxytag: member="Arrow" ref="ad28821489e04f1fd942e5bebc8a60584a27ace220f0a5c6abd061c85bbdc9a663" args="" -->Arrow</em> </td><td>
<p>Arrow. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="ad28821489e04f1fd942e5bebc8a60584a580980e68ef26fc7d35962cf6f12a4b2"></a><!-- doxytag: member="Ray" ref="ad28821489e04f1fd942e5bebc8a60584a580980e68ef26fc7d35962cf6f12a4b2" args="" -->Ray</em> </td><td>
<p>A straight line from the center. </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a5f16b9298ecd293360a3ccf91d3dbfbb"></a><!-- doxytag: member="QwtDialSimpleNeedle::QwtDialSimpleNeedle" ref="a5f16b9298ecd293360a3ccf91d3dbfbb" args="(Style, bool hasKnob=true, const QColor &mid=Qt::gray, const QColor &base=Qt::darkGray)" -->
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<td class="memname">QwtDialSimpleNeedle::QwtDialSimpleNeedle </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_dial_simple_needle.html#ad28821489e04f1fd942e5bebc8a60584">Style</a> </td>
<td class="paramname"><em>style</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>hasKnob</em> = <code>true</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QColor & </td>
<td class="paramname"><em>mid</em> = <code>Qt::gray</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const QColor & </td>
<td class="paramname"><em>base</em> = <code>Qt::darkGray</code> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Constructor</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">style</td><td>Style </td></tr>
<tr><td class="paramname">hasKnob</td><td>With/Without knob </td></tr>
<tr><td class="paramname">mid</td><td>Middle color </td></tr>
<tr><td class="paramname">base</td><td>Base color </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a425085086c4a8c7baff10b161616ee42"></a><!-- doxytag: member="QwtDialSimpleNeedle::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>
</table>
</div>
<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="QwtDialSimpleNeedle::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="a0eff8832707ff968d17eddf478d6a771"></a><!-- doxytag: member="QwtDialSimpleNeedle::drawNeedle" ref="a0eff8832707ff968d17eddf478d6a771" args="(QPainter *, double length, QPalette::ColorGroup) const " -->
<div class="memitem">
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<td class="memname">void QwtDialSimpleNeedle::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>
</table>
</div>
<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="QwtDialSimpleNeedle::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="QwtDialSimpleNeedle::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>
<a class="anchor" id="ad7672543371e38c864e44d9240271c22"></a><!-- doxytag: member="QwtDialSimpleNeedle::setWidth" ref="ad7672543371e38c864e44d9240271c22" args="(double width)" -->
<div class="memitem">
<div class="memproto">
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<td class="memname">void QwtDialSimpleNeedle::setWidth </td>
<td>(</td>
<td class="paramtype">double </td>
<td class="paramname"><em>width</em></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Set the width of the needle </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">width</td><td>Width </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_dial_simple_needle.html#af7c8d5ed409364e4e67b7e40f1c0cfe2">width()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="af7c8d5ed409364e4e67b7e40f1c0cfe2"></a><!-- doxytag: member="QwtDialSimpleNeedle::width" ref="af7c8d5ed409364e4e67b7e40f1c0cfe2" args="() const " -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">double QwtDialSimpleNeedle::width </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 width of the needle </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_dial_simple_needle.html#ad7672543371e38c864e44d9240271c22">setWidth()</a> </dd></dl>
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