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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 Q_ENUMS (<a class="code" href="class_qwt_knob.html#aa72613ae9e19a921beffaf8c99ab87f0">Symbol</a>)
<a name="l00038"></a>00038 Q_PROPERTY( <span class="keywordtype">int</span> knobWidth READ knobWidth WRITE setKnobWidth )
<a name="l00039"></a>00039 Q_PROPERTY( <span class="keywordtype">int</span> borderWidth READ borderWidth WRITE setBorderWidth )
<a name="l00040"></a>00040 Q_PROPERTY( <span class="keywordtype">double</span> totalAngle READ totalAngle WRITE setTotalAngle )
<a name="l00041"></a>00041 Q_PROPERTY( <a class="code" href="class_qwt_knob.html#aa72613ae9e19a921beffaf8c99ab87f0">Symbol</a> symbol READ symbol WRITE setSymbol )
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">public</span>:
<a name="l00049"></a><a class="code" href="class_qwt_knob.html#aa72613ae9e19a921beffaf8c99ab87f0">00049</a> <span class="keyword">enum</span> <a class="code" href="class_qwt_knob.html#aa72613ae9e19a921beffaf8c99ab87f0">Symbol</a> { Line, Dot };
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keyword">explicit</span> <a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a>(QWidget* parent = NULL);
<a name="l00052"></a>00052 <span class="preprocessor">#if QT_VERSION < 0x040000</span>
<a name="l00053"></a>00053 <span class="preprocessor"></span> <span class="keyword">explicit</span> <a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a>(QWidget* parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name);
<a name="l00054"></a>00054 <span class="preprocessor">#endif</span>
<a name="l00055"></a>00055 <span class="preprocessor"></span> <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_knob.html" title="The Knob Widget.">QwtKnob</a>();
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keywordtype">void</span> setKnobWidth(<span class="keywordtype">int</span> w);
<a name="l00058"></a>00058 <span class="keywordtype">int</span> knobWidth() <span class="keyword">const</span>;
<a name="l00059"></a>00059
<a name="l00060"></a>00060 <span class="keywordtype">void</span> setTotalAngle (<span class="keywordtype">double</span> angle);
<a name="l00061"></a>00061 <span class="keywordtype">double</span> totalAngle() <span class="keyword">const</span>;
<a name="l00062"></a>00062
<a name="l00063"></a>00063 <span class="keywordtype">void</span> setBorderWidth(<span class="keywordtype">int</span> bw);
<a name="l00064"></a>00064 <span class="keywordtype">int</span> borderWidth() <span class="keyword">const</span>;
<a name="l00065"></a>00065
<a name="l00066"></a>00066 <span class="keywordtype">void</span> setSymbol(Symbol);
<a name="l00067"></a>00067 Symbol symbol() <span class="keyword">const</span>;
<a name="l00068"></a>00068
<a name="l00069"></a>00069 <span class="keyword">virtual</span> QSize sizeHint() <span class="keyword">const</span>;
<a name="l00070"></a>00070 <span class="keyword">virtual</span> QSize minimumSizeHint() <span class="keyword">const</span>;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <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="l00073"></a>00073 <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="l00074"></a>00074 <a class="code" href="class_qwt_round_scale_draw.html" title="A class for drawing round scales.">QwtRoundScaleDraw</a> *scaleDraw();
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keyword">protected</span>:
<a name="l00077"></a>00077 <span class="keyword">virtual</span> <span class="keywordtype">void</span> paintEvent(QPaintEvent *e);
<a name="l00078"></a>00078 <span class="keyword">virtual</span> <span class="keywordtype">void</span> resizeEvent(QResizeEvent *e);
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordtype">void</span> draw(QPainter *p, <span class="keyword">const</span> QRect& ur);
<a name="l00081"></a>00081 <span class="keywordtype">void</span> drawKnob(QPainter *p, <span class="keyword">const</span> QRect &r);
<a name="l00082"></a>00082 <span class="keywordtype">void</span> drawMarker(QPainter *p, <span class="keywordtype">double</span> arc, <span class="keyword">const</span> QColor &c);
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keyword">private</span>:
<a name="l00085"></a>00085 <span class="keywordtype">void</span> initKnob();
<a name="l00086"></a>00086 <span class="keywordtype">void</span> layoutKnob( <span class="keywordtype">bool</span> update = <span class="keyword">true</span> );
<a name="l00087"></a>00087 <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="l00088"></a>00088 <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_slider.html#adcb6819c88cfa27e9ea3d8828479ea0b" title="Determine what to do when the user presses a mouse button.">getScrollMode</a>( <span class="keyword">const</span> QPoint &p, <span class="keywordtype">int</span> &scrollMode, <span class="keywordtype">int</span> &direction );
<a name="l00089"></a>00089 <span class="keywordtype">void</span> recalcAngle();
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_abstract_slider.html#a2f04dc51e4402b51fef3250bcc99dc7f">valueChange</a>();
<a name="l00092"></a>00092 <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="l00093"></a>00093 <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="l00094"></a>00094 <span class="keyword">virtual</span> <span class="keywordtype">void</span> fontChange(<span class="keyword">const</span> QFont &oldFont);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keyword">class </span>PrivateData;
<a name="l00097"></a>00097 PrivateData *d_data;
<a name="l00098"></a>00098 };
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="preprocessor">#endif</span>
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