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<div id="projectname">Qwt User's Guide <span id="projectnumber">6.0.1</span></div>
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<h1>qwt_knob.h</h1> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
<a name="l00009"></a>00009
<a name="l00010"></a>00010 <span class="preprocessor">#ifndef QWT_KNOB_H</span>
<a name="l00011"></a>00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_KNOB_H</span>
<a name="l00012"></a>00012 <span class="preprocessor"></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include "qwt_global.h"</span>
<a name="l00014"></a>00014 <span class="preprocessor">#include "qwt_abstract_slider.h"</span>
<a name="l00015"></a>00015 <span class="preprocessor">#include "qwt_abstract_scale.h"</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="keyword">class </span><a class="code" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a>;
<a name="l00018"></a>00018
<a name="l00034"></a><a class="code" href="class_qwt_knob.html">00034</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a> : <span class="keyword">public</span> <a class="code" href="class_qwt_abstract_slider.html" title="An abstract base class for slider widgets.">QwtAbstractSlider</a>, <span class="keyword">public</span> <a class="code" href="class_qwt_abstract_scale.html" title="An abstract base class for classes containing a scale.">QwtAbstractScale</a>
<a name="l00035"></a>00035 {
<a name="l00036"></a>00036 Q_OBJECT
<a name="l00037"></a>00037
<a name="l00038"></a>00038 Q_ENUMS ( <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be" title="Style of the knob surface.">KnobStyle</a> )
<a name="l00039"></a>00039 Q_ENUMS ( <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95" title="Marker type.">MarkerStyle</a> )
<a name="l00040"></a>00040
<a name="l00041"></a>00041 Q_PROPERTY( <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be" title="Style of the knob surface.">KnobStyle</a> knobStyle READ knobStyle WRITE setKnobStyle )
<a name="l00042"></a>00042 Q_PROPERTY( <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95" title="Marker type.">MarkerStyle</a> markerStyle READ markerStyle WRITE setMarkerStyle )
<a name="l00043"></a>00043 Q_PROPERTY( <span class="keywordtype">int</span> knobWidth READ knobWidth WRITE setKnobWidth )
<a name="l00044"></a>00044 Q_PROPERTY( <span class="keywordtype">int</span> borderWidth READ borderWidth WRITE setBorderWidth )
<a name="l00045"></a>00045 Q_PROPERTY( <span class="keywordtype">double</span> totalAngle READ totalAngle WRITE setTotalAngle )
<a name="l00046"></a>00046 Q_PROPERTY( <span class="keywordtype">int</span> markerSize READ markerSize WRITE setMarkerSize )
<a name="l00047"></a>00047 Q_PROPERTY( <span class="keywordtype">int</span> borderWidth READ borderWidth WRITE setBorderWidth )
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">public</span>:
<a name="l00058"></a><a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be">00058</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208be" title="Style of the knob surface.">KnobStyle</a>
<a name="l00059"></a>00059 {
<a name="l00061"></a><a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea697dfc29c275b793fbaf8b8136a7c8a1">00061</a> NoStyle = -1,
<a name="l00062"></a>00062
<a name="l00064"></a><a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df">00064</a> <a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea998504d08713af8a9af0d2cbe0aaf8df" title="Build a gradient from QPalette::Midlight and QPalette::Button.">Raised</a>,
<a name="l00065"></a>00065
<a name="l00070"></a><a class="code" href="class_qwt_knob.html#addd00357b45752377aec83a3ab7208bea599810d6e366e66eaa7f662f1424e7ed">00070</a> Sunken
<a name="l00071"></a>00071 };
<a name="l00072"></a>00072
<a name="l00081"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95">00081</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95" title="Marker type.">MarkerStyle</a>
<a name="l00082"></a>00082 {
<a name="l00084"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95af12a242c58b244547abb48ef284246f6">00084</a> NoMarker = -1,
<a name="l00085"></a>00085
<a name="l00087"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9">00087</a> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a5ccaa93ece2f928a1167b423339826d9" title="Paint a single tick in QPalette::ButtonText color.">Tick</a>,
<a name="l00088"></a>00088
<a name="l00090"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704">00090</a> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a298324d95eafb4e99717a35b81b0b704" title="Paint a circle in QPalette::ButtonText color.">Dot</a>,
<a name="l00091"></a>00091
<a name="l00096"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851">00096</a> <a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a1bf9be6c73beec7768d62f101d81a851">Nub</a>,
<a name="l00097"></a>00097
<a name="l00102"></a><a class="code" href="class_qwt_knob.html#a7254d94e76a74228637931fb75939b95a9ea483f1087c1f6b1ac215b5f146c7c3">00102</a> Notch
<a name="l00103"></a>00103 };
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="keyword">explicit</span> <a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a>( QWidget* parent = NULL );
<a name="l00106"></a>00106 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a>();
<a name="l00107"></a>00107
<a name="l00108"></a>00108 <span class="keywordtype">void</span> setKnobWidth( <span class="keywordtype">int</span> w );
<a name="l00109"></a>00109 <span class="keywordtype">int</span> knobWidth() <span class="keyword">const</span>;
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="keywordtype">void</span> setTotalAngle ( <span class="keywordtype">double</span> angle );
<a name="l00112"></a>00112 <span class="keywordtype">double</span> totalAngle() <span class="keyword">const</span>;
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="keywordtype">void</span> setKnobStyle( KnobStyle );
<a name="l00115"></a>00115 KnobStyle knobStyle() <span class="keyword">const</span>;
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keywordtype">void</span> setBorderWidth( <span class="keywordtype">int</span> bw );
<a name="l00118"></a>00118 <span class="keywordtype">int</span> borderWidth() <span class="keyword">const</span>;
<a name="l00119"></a>00119
<a name="l00120"></a>00120 <span class="keywordtype">void</span> setMarkerStyle( MarkerStyle );
<a name="l00121"></a>00121 MarkerStyle markerStyle() <span class="keyword">const</span>;
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="keywordtype">void</span> setMarkerSize( <span class="keywordtype">int</span> );
<a name="l00124"></a>00124 <span class="keywordtype">int</span> markerSize() <span class="keyword">const</span>;
<a name="l00125"></a>00125
<a name="l00126"></a>00126 <span class="keyword">virtual</span> QSize sizeHint() <span class="keyword">const</span>;
<a name="l00127"></a>00127 <span class="keyword">virtual</span> QSize minimumSizeHint() <span class="keyword">const</span>;
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keywordtype">void</span> setScaleDraw( <a class="code" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a> * );
<a name="l00130"></a>00130 <span class="keyword">const</span> <a class="code" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a> *scaleDraw() <span class="keyword">const</span>;
<a name="l00131"></a>00131 <a class="code" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a> *scaleDraw();
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="keyword">protected</span>:
<a name="l00134"></a>00134 <span class="keyword">virtual</span> <span class="keywordtype">void</span> paintEvent( QPaintEvent * );
<a name="l00135"></a>00135 <span class="keyword">virtual</span> <span class="keywordtype">void</span> resizeEvent( QResizeEvent * );
<a name="l00136"></a>00136 <span class="keyword">virtual</span> <span class="keywordtype">void</span> changeEvent( QEvent * );
<a name="l00137"></a>00137
<a name="l00138"></a>00138 <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawKnob( QPainter *, <span class="keyword">const</span> QRectF & ) <span class="keyword">const</span>;
<a name="l00139"></a>00139 <span class="keyword">virtual</span> <span class="keywordtype">void</span> drawMarker( QPainter *,
<a name="l00140"></a>00140 <span class="keyword">const</span> QRectF &, <span class="keywordtype">double</span> arc ) <span class="keyword">const</span>;
<a name="l00141"></a>00141
<a name="l00142"></a>00142 <span class="keyword">virtual</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_abstract_slider.html#a6e26a993536813c2d9846a28f3c27aa7" title="Determine the value corresponding to a specified poind.">getValue</a>( <span class="keyword">const</span> QPoint &p );
<a name="l00143"></a>00143 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_slider.html#a4124aa3b1e462d57ea2693214e66da0b" title="Determine what to do when the user presses a mouse button.">getScrollMode</a>( <span class="keyword">const</span> QPoint &,
<a name="l00144"></a>00144 <a class="code" href="class_qwt_abstract_slider.html#ae4c0c4844ac6a35356f3c529a8eae154">QwtAbstractSlider::ScrollMode</a> &, <span class="keywordtype">int</span> &direction ) <span class="keyword">const</span>;
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="keyword">private</span>:
<a name="l00147"></a>00147 <span class="keywordtype">void</span> initKnob();
<a name="l00148"></a>00148 <span class="keywordtype">void</span> layoutKnob( <span class="keywordtype">bool</span> update );
<a name="l00149"></a>00149 <span class="keywordtype">void</span> recalcAngle();
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_slider.html#a2f04dc51e4402b51fef3250bcc99dc7f">valueChange</a>();
<a name="l00152"></a>00152 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_double_range.html#a3583134a1ac32706aa4742088bb9d4dc" title="Notify a change of the range.">rangeChange</a>();
<a name="l00153"></a>00153 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_scale.html#a0dbb7bdc557c0a7b163643e41970ed6a" title="Notify changed scale.">scaleChange</a>();
<a name="l00154"></a>00154
<a name="l00155"></a>00155 <span class="keyword">class </span>PrivateData;
<a name="l00156"></a>00156 PrivateData *d_data;
<a name="l00157"></a>00157 };
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="preprocessor">#endif</span>
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