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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Qwt User's Guide: qwt_curve.h Source File</title>
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<h1>qwt_curve.h</h1><pre class="fragment"><div>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
00002 <span class="comment"> * Qwt Widget Library</span>
00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
00005 <span class="comment"> *</span>
00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
00008 <span class="comment"> *****************************************************************************/</span>
00009
00010 <span class="preprocessor">#ifndef QWT_CURVE_H</span>
00011 <span class="preprocessor"></span><span class="preprocessor">#define QWT_CURVE_H</span>
00012 <span class="preprocessor"></span>
00013 <span class="preprocessor">#include <qpen.h></span>
00014 <span class="preprocessor">#include <qstring.h></span>
00015 <span class="preprocessor">#include "qwt_global.h"</span>
00016 <span class="preprocessor">#include "qwt_array.h"</span>
00017 <span class="preprocessor">#include "qwt_data.h"</span>
00018 <span class="preprocessor">#include "qwt_spline.h"</span>
00019 <span class="preprocessor">#include "qwt_symbol.h"</span>
00020
00021 <span class="keyword">class </span>QPainter;
00022 <span class="keyword">class </span><a class="code" href="class_qwt_di_map.html">QwtDiMap</a>;
00023
00024 <span class="preprocessor">#if defined(QWT_TEMPLATEDLL)</span>
00025 <span class="preprocessor"></span><span class="comment">// MOC_SKIP_BEGIN</span>
00026 <span class="keyword">template</span> <span class="keyword">class </span>QWT_EXPORT QwtArray<double>;
00027 <span class="comment">// MOC_SKIP_END</span>
00028 <span class="preprocessor">#endif</span>
00029 <span class="preprocessor"></span>
<a name="l00060"></a><a class="code" href="class_qwt_curve.html">00060</a> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_curve.html">QwtCurve</a>
00061 {
00062 <span class="keyword">public</span>:
<a name="l00067"></a><a class="code" href="class_qwt_curve.html#w13">00067</a> <span class="keyword">enum</span> CurveStyle
00068 {
00069 NoCurve,
00070 Lines,
00071 Sticks,
00072 Steps,
00073 Dots,
00074 Spline,
00075 UserCurve = 100
00076 };
00077
<a name="l00082"></a><a class="code" href="class_qwt_curve.html#w14">00082</a> <span class="keyword">enum</span> CurveOption
00083 {
00084 Auto = 0,
00085 Yfx = 1,
00086 Xfy = 2,
00087 Parametric = 4,
00088 Periodic = 8,
00089 Inverted = 16
00090 };
00091
00092 <a class="code" href="class_qwt_curve.html">QwtCurve</a>(<span class="keyword">const</span> QString &title = QString::null);
00093 <a class="code" href="class_qwt_curve.html">QwtCurve</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_curve.html">QwtCurve</a> &c);
00094 <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_curve.html">QwtCurve</a>();
00095
00096 <span class="keyword">const</span> <a class="code" href="class_qwt_curve.html">QwtCurve</a>& operator= (<span class="keyword">const</span> <a class="code" href="class_qwt_curve.html">QwtCurve</a> &c);
00097
00098 <span class="keywordtype">void</span> setRawData(<span class="keyword">const</span> <span class="keywordtype">double</span> *x, <span class="keyword">const</span> <span class="keywordtype">double</span> *y, <span class="keywordtype">int</span> size);
00099 <span class="keywordtype">void</span> setData(<span class="keyword">const</span> <span class="keywordtype">double</span> *xData, <span class="keyword">const</span> <span class="keywordtype">double</span> *yData, <span class="keywordtype">int</span> size);
00100 <span class="keywordtype">void</span> setData(<span class="keyword">const</span> QwtArray<double> &xData, <span class="keyword">const</span> QwtArray<double> &yData);
00101 <span class="keywordtype">void</span> setData(<span class="keyword">const</span> QwtArray<QwtDoublePoint> &data);
00102 <span class="keywordtype">void</span> setData(<span class="keyword">const</span> <a class="code" href="class_qwt_data.html">QwtData</a> &data);
00103
00104 <span class="keywordtype">int</span> dataSize() const;
00105 inline <span class="keywordtype">double</span> x(<span class="keywordtype">int</span> i) const;
00106 inline <span class="keywordtype">double</span> y(<span class="keywordtype">int</span> i) const;
00107
00108 virtual <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> boundingRect() const;
00109
<a name="l00111"></a><a class="code" href="class_qwt_curve.html#a13">00111</a> inline <span class="keywordtype">double</span> minXValue()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> boundingRect().x1(); }
<a name="l00113"></a><a class="code" href="class_qwt_curve.html#a14">00113</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> maxXValue()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> boundingRect().x2(); }
<a name="l00115"></a><a class="code" href="class_qwt_curve.html#a15">00115</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> minYValue()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> boundingRect().y1(); }
<a name="l00117"></a><a class="code" href="class_qwt_curve.html#a16">00117</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> maxYValue()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> boundingRect().y2(); }
00118
00119 <span class="keywordtype">void</span> setOptions(<span class="keywordtype">int</span> t);
00120 <span class="keywordtype">int</span> options() const;
00121
00122 <span class="keywordtype">void</span> setTitle(const QString &title);
00123 const QString &title() const;
00124
00125 <span class="keywordtype">void</span> setPen(const QPen &);
00126 const QPen &pen() const;
00127
00128 <span class="keywordtype">void</span> setBrush(const QBrush &);
00129 const QBrush &brush() const;
00130
00131 <span class="keywordtype">void</span> setBaseline(<span class="keywordtype">double</span> ref);
00132 <span class="keywordtype">double</span> baseline() const;
00133
00134 <span class="keywordtype">void</span> setStyle(<span class="keywordtype">int</span> style, <span class="keywordtype">int</span> options = 0);
00135 <span class="keywordtype">int</span> style() const;
00136
00137 <span class="keywordtype">void</span> setSymbol(const <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &s);
00138 const <a class="code" href="class_qwt_symbol.html">QwtSymbol</a>& symbol() const;
00139
00140 <span class="keywordtype">void</span> setSplineSize(<span class="keywordtype">int</span> s);
00141 <span class="keywordtype">int</span> splineSize() const;
00142
00143 virtual <span class="keywordtype">void</span> draw(QPainter *p, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00144 <span class="keywordtype">int</span> from = 0, <span class="keywordtype">int</span> to = -1);
00145
00146 protected:
00147
00148 <span class="keywordtype">void</span> init(const QString &title);
00149 <span class="keywordtype">void</span> copy(const <a class="code" href="class_qwt_curve.html">QwtCurve</a> &c);
00150
00151 virtual <span class="keywordtype">void</span> drawCurve(QPainter *p, <span class="keywordtype">int</span> style,
00152 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00153 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00154
00155 virtual <span class="keywordtype">void</span> drawSymbols(QPainter *p, <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &,
00156 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00157 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00158
00159 <span class="keywordtype">void</span> drawLines(QPainter *p,
00160 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00161 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00162 <span class="keywordtype">void</span> drawSticks(QPainter *p,
00163 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00164 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00165 <span class="keywordtype">void</span> drawDots(QPainter *p,
00166 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00167 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00168 <span class="keywordtype">void</span> drawSteps(QPainter *p,
00169 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap,
00170 <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to);
00171 <span class="keywordtype">void</span> drawSpline(QPainter *p,
00172 const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &xMap, const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &yMap);
00173
00174 <span class="keywordtype">void</span> closePolyline(const <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> &, const QwtDiMap &,
00175 QPointArray &) const;
00176
00177 virtual <span class="keywordtype">void</span> curveChanged();
00178
00179 <span class="keywordtype">int</span> verifyRange(<span class="keywordtype">int</span> &i1, <span class="keywordtype">int</span> &i2);
00180
00181 protected:
00182 <a class="code" href="class_qwt_spline.html">QwtSpline</a> d_spx;
00183 <a class="code" href="class_qwt_spline.html">QwtSpline</a> d_spy;
00184
00185 private:
00186 <a class="code" href="class_qwt_data.html">QwtData</a> *d_data;
00187
00188 <span class="keywordtype">int</span> d_style;
00189 <span class="keywordtype">double</span> d_ref;
00190
00191 QwtSymbol d_sym;
00192
00193 QPen d_pen;
00194 QBrush d_brush;
00195 QString d_title;
00196
00197 <span class="keywordtype">int</span> d_options;
00198 <span class="keywordtype">int</span> d_splineSize;
00199 };
00200
<a name="l00205"></a><a class="code" href="class_qwt_curve.html#a10">00205</a> inline <span class="keywordtype">double</span> <a class="code" href="class_qwt_curve.html">QwtCurve</a>::x(<span class="keywordtype">int</span> i)<span class="keyword"> const </span>
00206 <span class="keyword"></span>{
00207 <span class="keywordflow">return</span> d_data->x(i);
00208 }
00209
<a name="l00214"></a><a class="code" href="class_qwt_curve.html#a11">00214</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_curve.html#a11">QwtCurve::y</a>(<span class="keywordtype">int</span> i)<span class="keyword"> const </span>
00215 <span class="keyword"></span>{
00216 <span class="keywordflow">return</span> d_data-><a class="code" href="class_qwt_data.html#a5">y</a>(i);
00217 }
00218
00219 <span class="preprocessor">#endif</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:20 2004 for Qwt User's Guide by
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