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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>Qwt User's Guide: QwtKnob Class Reference</title>
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<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a> | <a class="qindex" href="pages.html">Related Pages</a></div>
<h1>QwtKnob Class Reference</h1>Inheritance diagram for QwtKnob:<p><center><img src="class_qwt_knob__inherit__graph.png" border="0" usemap="#_qwt_knob__inherit__map" alt="Inheritance graph"></center>
<map name="_qwt_knob__inherit__map">
<area href="class_qwt_slider_base.html" shape="rect" coords="6,93,108,117" alt="">
<area href="class_qwt_dbl_range.html" shape="rect" coords="9,18,105,42" alt="">
<area href="class_qwt_scale_if.html" shape="rect" coords="131,93,209,117" alt="">
</map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtKnob:<p><center><img src="class_qwt_knob__coll__graph.png" border="0" usemap="#_qwt_knob__coll__map" alt="Collaboration graph"></center>
<map name="_qwt_knob__coll__map">
<area href="class_qwt_slider_base.html" shape="rect" coords="6,199,108,223" alt="">
<area href="class_qwt_dbl_range.html" shape="rect" coords="6,109,102,133" alt="">
<area href="class_qwt_scale_if.html" shape="rect" coords="133,199,210,223" alt="">
<area href="class_qwt_scale_draw.html" shape="rect" coords="126,109,227,133" alt="">
<area href="class_qwt_di_map.html" shape="rect" coords="86,18,161,42" alt="">
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</map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_knob-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>
The Knob Widget.
<p>
The QwtKnob 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_scale_if.html">QwtScaleIf</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_slider_base.html">QwtSliderBase</a>.<p>
<div align="center">
<img src="knob.gif" alt="knob.gif">
</div>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_slider_base.html">QwtSliderBase</a> and <a class="el" href="class_qwt_scale_if.html">QwtScaleIf</a> for the descriptions of the inherited members. </dd></dl>
<p>
Definition at line <a class="el" href="qwt__knob_8h-source.html#l00032">32</a> of file <a class="el" href="qwt__knob_8h-source.html">qwt_knob.h</a>.<table border=0 cellpadding=0 cellspacing=0>
<tr><td></td></tr>
<tr><td colspan=2><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>enum </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#w2">Symbol</a> { <br>
<b>Line</b>,
<br>
<b>Dot</b>
<br>
}</td></tr>
<tr><td colspan=2><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top> </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a0">QwtKnob</a> (QWidget *parent=0, const char *name=0)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a1">~QwtKnob</a> ()</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a2">setKnobWidth</a> (int w)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a3">setTotalAngle</a> (double angle)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a4">setBorderWidth</a> (int bw)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a5">knobWidth</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>double </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a6">totalAngle</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>int </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a7">borderWidth</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a8">setSymbol</a> (<a class="el" href="class_qwt_knob.html#w2">Symbol</a>)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top><a class="el" href="class_qwt_knob.html#w2">Symbol</a> </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a9">symbol</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual QSize </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a10">sizeHint</a> () const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual QSize </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#a11">minimumSizeHint</a> () const</td></tr>
<tr><td colspan=2><br><h2>Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#b0">paintEvent</a> (QPaintEvent *e)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#b1">resizeEvent</a> (QResizeEvent *e)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#b2">draw</a> (QPainter *p, const QRect &ur)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#b3">drawKnob</a> (QPainter *p, const QRect &r)</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>void </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_knob.html#b4">drawMarker</a> (QPainter *p, double arc, const QColor &c)</td></tr>
</table>
<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="w2" doxytag="QwtKnob::Symbol" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> enum <a class="el" href="class_qwt_knob.html#w2">QwtKnob::Symbol</a> </td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Symbol <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a0">QwtKnob::QwtKnob()</a> </dd></dl>
Definition at line <a class="el" href="qwt__knob_8h-source.html#l00047">47</a> of file <a class="el" href="qwt__knob_8h-source.html">qwt_knob.h</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00070">symbol()</a>. </td>
</tr>
</table>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="QwtKnob::QwtKnob" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> QwtKnob::QwtKnob </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QWidget * </td>
<td class="mdname" nowrap> <em>parent</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const char * </td>
<td class="mdname" nowrap> <em>name</em> = <code>0</code></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Constructor.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>parent</em> </td><td>Parent widget </td></tr>
<tr><td></td><td valign=top><em>name</em> </td><td>Name </td></tr>
</table>
</dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00023">23</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__sclif_8cpp-source.html#l00177">QwtScaleIf::scaleDraw()</a>, <a class="el" href="qwt__scldraw_8cpp-source.html#l00448">QwtScaleDraw::setGeometry()</a>, <a class="el" href="qwt__knob_8cpp-source.html#l00083">setTotalAngle()</a>, and <a class="el" href="qwt__sldbase_8cpp-source.html#l00106">QwtSliderBase::setUpdateTime()</a>. </td>
</tr>
</table>
<a class="anchor" name="a1" doxytag="QwtKnob::~QwtKnob" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> QwtKnob::~<a class="el" href="class_qwt_knob.html">QwtKnob</a> </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Destructor.
<p>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00049">49</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>. </td>
</tr>
</table>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a7" doxytag="QwtKnob::borderWidth" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int QwtKnob::borderWidth </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Return the border width.
<p>
Definition at line <a class="el" href="qwt__knob_8h-source.html#l00061">61</a> of file <a class="el" href="qwt__knob_8h-source.html">qwt_knob.h</a>. </td>
</tr>
</table>
<a class="anchor" name="b2" doxytag="QwtKnob::draw" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::draw </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QPainter * </td>
<td class="mdname" nowrap> <em>painter</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const QRect & </td>
<td class="mdname" nowrap> <em>ur</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [protected]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Repaint the knob.
<p>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00275">275</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__scldraw_8cpp-source.html#l00104">QwtScaleDraw::draw()</a>, <a class="el" href="qwt__knob_8cpp-source.html#l00099">drawKnob()</a>, and <a class="el" href="qwt__sclif_8cpp-source.html#l00177">QwtScaleIf::scaleDraw()</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00262">paintEvent()</a>. </td>
</tr>
</table>
<a class="anchor" name="b3" doxytag="QwtKnob::drawKnob" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::drawKnob </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QPainter * </td>
<td class="mdname" nowrap> <em>p</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const QRect & </td>
<td class="mdname" nowrap> <em>r</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [protected]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Draw the knob.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>p</em> </td><td>painter </td></tr>
<tr><td></td><td valign=top><em>r</em> </td><td>borders of the knob </td></tr>
</table>
</dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00099">99</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__knob_8cpp-source.html#l00301">drawMarker()</a>, and <a class="el" href="qwt__sldbase_8h-source.html#l00066">QwtSliderBase::isValid()</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00275">draw()</a>. </td>
</tr>
</table>
<a class="anchor" name="b4" doxytag="QwtKnob::drawMarker" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::drawMarker </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QPainter * </td>
<td class="mdname" nowrap> <em>p</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>double </td>
<td class="mdname" nowrap> <em>arc</em>, </td>
</tr>
<tr>
<td class="md" nowrap align="right"></td>
<td></td>
<td class="md" nowrap>const QColor & </td>
<td class="mdname" nowrap> <em>c</em></td>
</tr>
<tr>
<td></td>
<td class="md">) </td>
<td class="md" colspan="2"><code> [protected]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Draw the marker at the knob's front.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>p</em> </td><td>Painter </td></tr>
<tr><td></td><td valign=top><em>arc</em> </td><td>Angle of the marker </td></tr>
<tr><td></td><td valign=top><em>c</em> </td><td>Marker color </td></tr>
</table>
</dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00301">301</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00099">drawKnob()</a>. </td>
</tr>
</table>
<a class="anchor" name="a5" doxytag="QwtKnob::knobWidth" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> int QwtKnob::knobWidth </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Return the width of the knob.
<p>
Definition at line <a class="el" href="qwt__knob_8h-source.html#l00057">57</a> of file <a class="el" href="qwt__knob_8h-source.html">qwt_knob.h</a>. </td>
</tr>
</table>
<a class="anchor" name="a11" doxytag="QwtKnob::minimumSizeHint" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> QSize QwtKnob::minimumSizeHint </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Return a minimum size hint.
<p>
<dl compact><dt><b>Warning:</b></dt><dd>The return value of <a class="el" href="class_qwt_knob.html#a11">QwtKnob::minimumSizeHint()</a> depends on the font and the scale. </dd></dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00424">424</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__scldraw_8cpp-source.html#l00960">QwtScaleDraw::minHeight()</a>, and <a class="el" href="qwt__sclif_8cpp-source.html#l00177">QwtScaleIf::scaleDraw()</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00414">sizeHint()</a>. </td>
</tr>
</table>
<a class="anchor" name="b0" doxytag="QwtKnob::paintEvent" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::paintEvent </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QPaintEvent * </td>
<td class="mdname1" valign="top" nowrap> <em>e</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [protected, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Repaint the knob.
<p>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00262">262</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__knob_8cpp-source.html#l00275">draw()</a>, and <a class="el" href="qwt__paint__buffer_8cpp-source.html#l00058">QwtPaintBuffer::painter()</a>. </td>
</tr>
</table>
<a class="anchor" name="b1" doxytag="QwtKnob::resizeEvent" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::resizeEvent </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">QResizeEvent * </td>
<td class="mdname1" valign="top" nowrap> <em>e</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap><code> [protected, virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Qt Resize Event.
<p>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00228">228</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a4" doxytag="QwtKnob::setBorderWidth" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::setBorderWidth </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname1" valign="top" nowrap> <em>bw</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Set the knob's border width.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>bw</em> </td><td>new border width </td></tr>
</table>
</dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00360">360</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a2" doxytag="QwtKnob::setKnobWidth" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::setKnobWidth </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">int </td>
<td class="mdname1" valign="top" nowrap> <em>w</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Change the knob's width.
<p>
The specified width must be >= 5, or it will be clipped. <dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>w</em> </td><td>New width </td></tr>
</table>
</dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00350">350</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a8" doxytag="QwtKnob::setSymbol" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::setSymbol </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top"><a class="el" href="class_qwt_knob.html#w2">QwtKnob::Symbol</a> </td>
<td class="mdname1" valign="top" nowrap> <em>s</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Set the symbol of the knob.
<p>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a9">QwtKnob::symbol()</a> </dd></dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00057">57</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>. </td>
</tr>
</table>
<a class="anchor" name="a3" doxytag="QwtKnob::setTotalAngle" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> void QwtKnob::setTotalAngle </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">double </td>
<td class="mdname1" valign="top" nowrap> <em>angle</em> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Set the total angle by which the knob can be turned.
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td></td><td valign=top><em>angle</em> </td><td>Angle in degrees.</td></tr>
</table>
</dl>
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. Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00083">83</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__sclif_8cpp-source.html#l00177">QwtScaleIf::scaleDraw()</a>, and <a class="el" href="qwt__scldraw_8cpp-source.html#l00611">QwtScaleDraw::setAngleRange()</a>.
<p>
Referenced by <a class="el" href="qwt__knob_8cpp-source.html#l00023">QwtKnob()</a>. </td>
</tr>
</table>
<a class="anchor" name="a10" doxytag="QwtKnob::sizeHint" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> QSize QwtKnob::sizeHint </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const<code> [virtual]</code></td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
<dl compact><dt><b>Returns:</b></dt><dd><a class="el" href="class_qwt_knob.html#a11">QwtKnob::minimumSizeHint()</a> </dd></dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00414">414</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__knob_8cpp-source.html#l00424">minimumSizeHint()</a>. </td>
</tr>
</table>
<a class="anchor" name="a9" doxytag="QwtKnob::symbol" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> <a class="el" href="class_qwt_knob.html#w2">QwtKnob::Symbol</a> QwtKnob::symbol </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
<dl compact><dt><b>Returns:</b></dt><dd>symbol of the knob </dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_knob.html#a8">QwtKnob::setSymbol()</a> </dd></dl>
Definition at line <a class="el" href="qwt__knob_8cpp-source.html#l00070">70</a> of file <a class="el" href="qwt__knob_8cpp-source.html">qwt_knob.cpp</a>.
<p>
References <a class="el" href="qwt__knob_8h-source.html#l00047">Symbol</a>. </td>
</tr>
</table>
<a class="anchor" name="a6" doxytag="QwtKnob::totalAngle" ></a><p>
<table class="mdTable" width="100%" cellpadding="2" cellspacing="0">
<tr>
<td class="mdRow">
<table cellpadding="0" cellspacing="0" border="0">
<tr>
<td class="md" nowrap valign="top"> double QwtKnob::totalAngle </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
<td class="md" nowrap> const</td>
</tr>
</table>
</td>
</tr>
</table>
<table cellspacing=5 cellpadding=0 border=0>
<tr>
<td>
</td>
<td>
<p>
Return the total angle.
<p>
Definition at line <a class="el" href="qwt__knob_8h-source.html#l00059">59</a> of file <a class="el" href="qwt__knob_8h-source.html">qwt_knob.h</a>. </td>
</tr>
</table>
<hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:29 2004 for Qwt User's Guide by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 ></a> 1.3.8 </small></address>
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