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<h1>qwt_plot_curve.cpp</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">#include "qwt_plot.h"</span>
00011 <span class="preprocessor">#include "qwt_plot_dict.h"</span>
00012 <span class="preprocessor">#include "<a class="code" href="qwt__math_8h.html">qwt_math.h</a>"</span>
00013 <span class="preprocessor">#include "qwt_legend.h"</span>
00014 
<a name="l00016"></a><a class="code" href="class_qwt_plot.html#a37">00016</a> QwtPlotCurveIterator <a class="code" href="class_qwt_plot.html#a37">QwtPlot::curveIterator</a>()<span class="keyword"> const</span>
00017 <span class="keyword"></span>{
00018     <span class="keywordflow">return</span> QwtPlotCurveIterator(*d_curves);
00019 }
00020 
<a name="l00030"></a><a class="code" href="class_qwt_plot.html#a47">00030</a> <span class="keywordtype">long</span> <a class="code" href="class_qwt_plot.html#a47">QwtPlot::closestCurve</a>(<span class="keywordtype">int</span> xpos, <span class="keywordtype">int</span> ypos, <span class="keywordtype">int</span> &amp;dist)<span class="keyword"> const</span>
00031 <span class="keyword"></span>{
00032     <span class="keywordtype">double</span> x,y;
00033     <span class="keywordtype">int</span> index;
00034     <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot.html#a47">closestCurve</a>(xpos, ypos, dist, x,y, index);
00035 }
00036 
<a name="l00050"></a><a class="code" href="class_qwt_plot.html#a48">00050</a> <span class="keywordtype">long</span> <a class="code" href="class_qwt_plot.html#a47">QwtPlot::closestCurve</a>(<span class="keywordtype">int</span> xpos, <span class="keywordtype">int</span> ypos, <span class="keywordtype">int</span> &amp;dist, <span class="keywordtype">double</span> &amp;xval,
00051                            <span class="keywordtype">double</span> &amp;yval, <span class="keywordtype">int</span> &amp;index)<span class="keyword"> const</span>
00052 <span class="keyword"></span>{
00053     <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> map[axisCnt];
00054     <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a109">axis</a> = 0; axis &lt; axisCnt; axis++ )
00055         map[axis] = <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(axis);
00056 
00057     <span class="keywordtype">long</span> rv = 0;
00058     <span class="keywordtype">double</span> dmin = 1.0e10;
00059 
00060     QwtPlotCurveIterator itc = <a class="code" href="class_qwt_plot.html#a37">curveIterator</a>();
00061     <span class="keywordflow">for</span> (<a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = itc.toFirst(); c != 0; c = ++itc )
00062     {
00063         <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;c-&gt;<a class="code" href="class_qwt_curve.html#a9">dataSize</a>(); i++)
00064         {
00065             <span class="keywordtype">double</span> cx = map[c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()].<a class="code" href="class_qwt_di_map.html#a10">xTransform</a>(c-&gt;<a class="code" href="class_qwt_curve.html#a10">x</a>(i)) - double(xpos);
00066             <span class="keywordtype">double</span> cy = map[c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()].xTransform(c-&gt;<a class="code" href="class_qwt_curve.html#a11">y</a>(i)) - double(ypos);
00067 
00068             <span class="keywordtype">double</span> f = <a class="code" href="qwt__math_8h.html#a31">qwtSqr</a>(cx) + <a class="code" href="qwt__math_8h.html#a31">qwtSqr</a>(cy);
00069             <span class="keywordflow">if</span> (f &lt; dmin)
00070             {
00071                 dmin = f;
00072                 rv = itc.currentKey();
00073                 xval = c-&gt;<a class="code" href="class_qwt_curve.html#a10">x</a>(i);
00074                 yval = c-&gt;<a class="code" href="class_qwt_curve.html#a11">y</a>(i);
00075                 index = i;
00076             }
00077         }
00078     }
00079 
00080     dist = int(sqrt(dmin));
00081     <span class="keywordflow">return</span> rv;
00082 }
00083 
00084 
00085 
<a name="l00091"></a><a class="code" href="class_qwt_plot.html#a65">00091</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a65">QwtPlot::curveStyle</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00092 <span class="keyword"></span>{
00093     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00094     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a28">style</a>() : 0;
00095 }
00096 
<a name="l00103"></a><a class="code" href="class_qwt_plot.html#a67">00103</a> <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> <a class="code" href="class_qwt_plot.html#a67">QwtPlot::curveSymbol</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00104 <span class="keyword"></span>{
00105     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00106     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a30">symbol</a>() : <a class="code" href="class_qwt_symbol.html">QwtSymbol</a>();
00107 }
00108 
<a name="l00113"></a><a class="code" href="class_qwt_plot.html#a59">00113</a> QPen <a class="code" href="class_qwt_plot.html#a59">QwtPlot::curvePen</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00114 <span class="keyword"></span>{
00115     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00116     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a22">pen</a>() : QPen();
00117 }
00118 
<a name="l00124"></a><a class="code" href="class_qwt_plot.html#a61">00124</a> QBrush <a class="code" href="class_qwt_plot.html#a61">QwtPlot::curveBrush</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00125 <span class="keyword"></span>{
00126     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00127     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a24">brush</a>() : QBrush();
00128 }
<a name="l00133"></a><a class="code" href="class_qwt_plot.html#a57">00133</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a57">QwtPlot::curveOptions</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00134 <span class="keyword"></span>{
00135     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00136     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a18">options</a>() : 0;
00137 }
00138 
<a name="l00143"></a><a class="code" href="class_qwt_plot.html#a63">00143</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a63">QwtPlot::curveSplineSize</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00144 <span class="keyword"></span>{
00145     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00146     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a32">splineSize</a>() : 0;
00147 }
00148 
<a name="l00153"></a><a class="code" href="class_qwt_plot.html#a69">00153</a> QString <a class="code" href="class_qwt_plot.html#a69">QwtPlot::curveTitle</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00154 <span class="keyword"></span>{
00155     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00156     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_curve.html#a20">title</a>() : QString::null;
00157 }
00158 
<a name="l00162"></a><a class="code" href="class_qwt_plot.html#a46">00162</a> QwtArray&lt;long&gt; <a class="code" href="class_qwt_plot.html#a46">QwtPlot::curveKeys</a>()<span class="keyword"> const</span>
00163 <span class="keyword"></span>{
00164     QwtArray&lt;long&gt; keys(d_curves-&gt;count());
00165 
00166     <span class="keywordtype">int</span> i = 0;
00167 
00168     QwtPlotCurveIterator itc = <a class="code" href="class_qwt_plot.html#a37">curveIterator</a>();
00169     <span class="keywordflow">for</span> (<span class="keyword">const</span> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = itc.toFirst(); c != 0; c = ++itc, i++ )
00170         keys[i] = itc.currentKey();
00171 
00172     <span class="keywordflow">return</span> keys;
00173 }
00174 
<a name="l00180"></a><a class="code" href="class_qwt_plot.html#a71">00180</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a71">QwtPlot::curveXAxis</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00181 <span class="keyword"></span>{
00182     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00183     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>() : -1;
00184 }
00185 
00186 
<a name="l00192"></a><a class="code" href="class_qwt_plot.html#a73">00192</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a73">QwtPlot::curveYAxis</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00193 <span class="keyword"></span>{
00194     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00195     <span class="keywordflow">return</span> c ? c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>() : -1;
00196 }
00197 
00198 
00203 <span class="keywordtype">long</span> QwtPlot::newCurveKey()
00204 {
00205     <span class="keywordtype">long</span> newkey = d_curves-&gt;count() + 1;
00206 
00207     <span class="keywordflow">if</span> (newkey &gt; 1)                     <span class="comment">// size &gt; 0: check if key exists</span>
00208     {
00209         <span class="keywordflow">if</span> (d_curves-&gt;find(newkey))     <span class="comment">// key size+1 exists =&gt; there must be a</span>
00210                                         <span class="comment">// free key &lt;= size</span>
00211         {
00212             <span class="comment">// find the first available key &lt;= size</span>
00213             newkey = 1;
00214             <span class="keywordflow">while</span> (newkey &lt;= long(d_curves-&gt;count()))
00215             {
00216                 <span class="keywordflow">if</span> (d_curves-&gt;find(newkey))
00217                    newkey++;
00218                 <span class="keywordflow">else</span>
00219                    <span class="keywordflow">break</span>;
00220             }
00221 
00222             <span class="comment">// This can't happen. Just paranoia.</span>
00223             <span class="keywordflow">if</span> (newkey &gt; long(d_curves-&gt;count()))
00224             {
00225                 <span class="keywordflow">while</span> (!d_curves-&gt;find(newkey))
00226                 {
00227                     newkey++;
00228                     <span class="keywordflow">if</span> (newkey &gt; 10000) <span class="comment">// prevent infinite loop</span>
00229                     {
00230                         newkey = 0;
00231                         <span class="keywordflow">break</span>;
00232                     }
00233                 }
00234             }
00235         }
00236     }
00237     <span class="keywordflow">return</span> newkey;
00238 }
00239 
<a name="l00247"></a><a class="code" href="class_qwt_plot.html#a42">00247</a> <span class="keywordtype">long</span> <a class="code" href="class_qwt_plot.html#a42">QwtPlot::insertCurve</a>(<a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *curve)
00248 {
00249     <span class="keywordflow">if</span> (curve == 0)
00250         <span class="keywordflow">return</span> 0;
00251 
00252     <span class="keywordtype">long</span> key = newCurveKey();
00253     <span class="keywordflow">if</span> (key == 0)
00254         <span class="keywordflow">return</span> 0;
00255 
00256     curve-&gt;<a class="code" href="class_qwt_plot_item.html#a2">reparent</a>(<span class="keyword">this</span>);
00257 
00258     d_curves-&gt;insert(key, curve);
00259     <span class="keywordflow">if</span> (d_autoLegend)
00260     {
00261         <a class="code" href="class_qwt_plot.html#b8">insertLegendItem</a>(key);
00262         <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
00263     }
00264 
00265     <span class="keywordflow">return</span> key;
00266 }
00267 
<a name="l00276"></a><a class="code" href="class_qwt_plot.html#a43">00276</a> <span class="keywordtype">long</span> <a class="code" href="class_qwt_plot.html#a42">QwtPlot::insertCurve</a>(<span class="keyword">const</span> QString &amp;title, <span class="keywordtype">int</span> xAxis, <span class="keywordtype">int</span> yAxis)
00277 {
00278     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">curve</a> = <span class="keyword">new</span> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a>(<span class="keyword">this</span>);
00279     <span class="keywordflow">if</span> (!curve)
00280         <span class="keywordflow">return</span> 0;
00281 
00282     curve-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a1">setAxis</a>(xAxis, yAxis);
00283     curve-&gt;<a class="code" href="class_qwt_curve.html#a19">setTitle</a>(title);
00284 
00285     <span class="keywordtype">long</span> key = <a class="code" href="class_qwt_plot.html#a42">insertCurve</a>(curve);
00286     <span class="keywordflow">if</span> ( key == 0 )
00287         <span class="keyword">delete</span> curve;
00288 
00289     <span class="keywordflow">return</span> key;
00290 }
00291 
<a name="l00297"></a><a class="code" href="class_qwt_plot.html#a44">00297</a> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">QwtPlot::curve</a>(<span class="keywordtype">long</span> key)
00298 {
00299     <span class="keywordflow">return</span> d_curves-&gt;find(key);
00300 }
00301 
<a name="l00307"></a><a class="code" href="class_qwt_plot.html#a45">00307</a> <span class="keyword">const</span> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">QwtPlot::curve</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00308 <span class="keyword"></span>{
00309     <span class="keywordflow">return</span> d_curves-&gt;find(key);
00310 }
00311 
00312 
<a name="l00317"></a><a class="code" href="class_qwt_plot.html#i1">00317</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#i1">QwtPlot::removeCurve</a>(<span class="keywordtype">long</span> key)
00318 {
00319     <span class="keywordtype">bool</span> ok = d_curves-&gt;remove(key);
00320     <span class="keywordflow">if</span> ( !ok )
00321         <span class="keywordflow">return</span> FALSE;
00322 
00323     QWidget *item = d_legend-&gt;<a class="code" href="class_qwt_legend.html#a9">findItem</a>(key);
00324     <span class="keywordflow">if</span> ( item )
00325     {
00326         <span class="keyword">delete</span> item;
00327         <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
00328     }
00329     
00330     <a class="code" href="class_qwt_plot.html#b0">autoRefresh</a>();
00331     <span class="keywordflow">return</span> TRUE;
00332 }
00333 
<a name="l00340"></a><a class="code" href="class_qwt_plot.html#a58">00340</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a58">QwtPlot::setCurvePen</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> QPen &amp;pen)
00341 {
00342     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00343     <span class="keywordflow">if</span> ( !c )
00344         <span class="keywordflow">return</span> FALSE;
00345     
00346     c-&gt;<a class="code" href="class_qwt_curve.html#a21">setPen</a>(pen);
00347     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(key);
00348 
00349     <span class="keywordflow">return</span> TRUE;
00350 }
00351 
<a name="l00362"></a><a class="code" href="class_qwt_plot.html#a60">00362</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a60">QwtPlot::setCurveBrush</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> QBrush &amp;brush)
00363 {
00364     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00365     <span class="keywordflow">if</span> ( !c )
00366         <span class="keywordflow">return</span> FALSE;
00367     
00368     c-&gt;<a class="code" href="class_qwt_curve.html#a23">setBrush</a>(brush);
00369     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(key);
00370 
00371     <span class="keywordflow">return</span> TRUE;
00372 }
00373 
<a name="l00380"></a><a class="code" href="class_qwt_plot.html#a66">00380</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a66">QwtPlot::setCurveSymbol</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> <a class="code" href="class_qwt_symbol.html">QwtSymbol</a> &amp;symbol)
00381 {
00382     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00383     <span class="keywordflow">if</span> ( !c )
00384         <span class="keywordflow">return</span> FALSE;
00385 
00386     c-&gt;<a class="code" href="class_qwt_curve.html#a29">setSymbol</a>(symbol);
00387     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(key);
00388 
00389     <span class="keywordflow">return</span> TRUE;
00390 }
00391 
<a name="l00407"></a><a class="code" href="class_qwt_plot.html#a51">00407</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a51">QwtPlot::setCurveRawData</a>(<span class="keywordtype">long</span> key, 
00408     <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)
00409 {
00410     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00411     <span class="keywordflow">if</span> ( !c )
00412         <span class="keywordflow">return</span> FALSE;
00413 
00414     c-&gt;<a class="code" href="class_qwt_curve.html#a4">setRawData</a>(xData, yData, size);
00415     <span class="keywordflow">return</span> TRUE;
00416 }
00417 
<a name="l00424"></a><a class="code" href="class_qwt_plot.html#a68">00424</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a68">QwtPlot::setCurveTitle</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> QString &amp;title)
00425 {
00426     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00427     <span class="keywordflow">if</span> ( !c )
00428         <span class="keywordflow">return</span> FALSE;
00429 
00430     c-&gt;<a class="code" href="class_qwt_curve.html#a19">setTitle</a>(title);
00431     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(key);
00432 
00433     <span class="keywordflow">return</span> TRUE;
00434 }
00435 
<a name="l00449"></a><a class="code" href="class_qwt_plot.html#a52">00449</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a52">QwtPlot::setCurveData</a>(<span class="keywordtype">long</span> key, 
00450     <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)
00451 {
00452     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00453     <span class="keywordflow">if</span> ( !c )
00454         <span class="keywordflow">return</span> FALSE;
00455 
00456     c-&gt;<a class="code" href="class_qwt_curve.html#a5">setData</a>(xData, yData, size);
00457     <span class="keywordflow">return</span> TRUE;
00458 }
00459     
<a name="l00468"></a><a class="code" href="class_qwt_plot.html#a53">00468</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a52">QwtPlot::setCurveData</a>(<span class="keywordtype">long</span> key, 
00469     <span class="keyword">const</span> QwtArray&lt;double&gt; &amp;xData, <span class="keyword">const</span> QwtArray&lt;double&gt; &amp;yData)
00470 {
00471     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00472     <span class="keywordflow">if</span> ( !c )
00473         <span class="keywordflow">return</span> FALSE;
00474 
00475     c-&gt;<a class="code" href="class_qwt_curve.html#a5">setData</a>(xData, yData);
00476     <span class="keywordflow">return</span> TRUE;
00477 }
00478     
<a name="l00486"></a><a class="code" href="class_qwt_plot.html#a54">00486</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a52">QwtPlot::setCurveData</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> QwtArray&lt;QwtDoublePoint&gt; &amp;data)
00487 {
00488     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00489     <span class="keywordflow">if</span> ( !c )
00490         <span class="keywordflow">return</span> FALSE;
00491 
00492     c-&gt;<a class="code" href="class_qwt_curve.html#a5">setData</a>(data);
00493     <span class="keywordflow">return</span> TRUE;
00494 }
00495     
<a name="l00503"></a><a class="code" href="class_qwt_plot.html#a55">00503</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a52">QwtPlot::setCurveData</a>(<span class="keywordtype">long</span> key, <span class="keyword">const</span> <a class="code" href="class_qwt_data.html">QwtData</a> &amp;data)
00504 {
00505     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00506     <span class="keywordflow">if</span> ( !c )
00507         <span class="keywordflow">return</span> FALSE;
00508 
00509     c-&gt;<a class="code" href="class_qwt_curve.html#a5">setData</a>(data);
00510     <span class="keywordflow">return</span> TRUE;
00511 }
00512     
<a name="l00521"></a><a class="code" href="class_qwt_plot.html#a64">00521</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a64">QwtPlot::setCurveStyle</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> s, <span class="keywordtype">int</span> options)
00522 {
00523     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00524     <span class="keywordflow">if</span> ( !c )
00525         <span class="keywordflow">return</span> FALSE;
00526 
00527     c-&gt;<a class="code" href="class_qwt_curve.html#a27">setStyle</a>(s, options);
00528     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(key);
00529 
00530     <span class="keywordflow">return</span> TRUE;
00531 }
00532 
<a name="l00540"></a><a class="code" href="class_qwt_plot.html#a56">00540</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a56">QwtPlot::setCurveOptions</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> opt)
00541 {
00542     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00543     <span class="keywordflow">if</span> ( !c )
00544         <span class="keywordflow">return</span> FALSE;
00545 
00546     c-&gt;<a class="code" href="class_qwt_curve.html#a17">setOptions</a>(opt);
00547     <span class="keywordflow">return</span> TRUE;
00548 }
00549 
<a name="l00556"></a><a class="code" href="class_qwt_plot.html#a62">00556</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a62">QwtPlot::setCurveSplineSize</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> s)
00557 {
00558     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00559     <span class="keywordflow">if</span> ( !c )
00560         <span class="keywordflow">return</span> FALSE;
00561 
00562     c-&gt;<a class="code" href="class_qwt_curve.html#a31">setSplineSize</a>(s);
00563     <span class="keywordflow">return</span> TRUE;
00564 }
00565 
00566 
<a name="l00573"></a><a class="code" href="class_qwt_plot.html#a70">00573</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a70">QwtPlot::setCurveXAxis</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> axis)
00574 {
00575     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00576     <span class="keywordflow">if</span> ( !c )
00577         <span class="keywordflow">return</span> FALSE;
00578 
00579     c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a2">setXAxis</a>(axis);
00580     <span class="keywordflow">return</span> TRUE;
00581 }
00582 
<a name="l00589"></a><a class="code" href="class_qwt_plot.html#a72">00589</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a72">QwtPlot::setCurveYAxis</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> axis)
00590 {
00591     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00592     <span class="keywordflow">if</span> ( !c )
00593         <span class="keywordflow">return</span> FALSE;
00594 
00595     c-&gt;<a class="code" href="class_qwt_plot_mapped_item.html#a4">setYAxis</a>(axis);
00596     <span class="keywordflow">return</span> TRUE;
00597 }
00598 
00599 
<a name="l00609"></a><a class="code" href="class_qwt_plot.html#a49">00609</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a49">QwtPlot::setCurveBaseline</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">double</span> ref)
00610 {
00611     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c = d_curves-&gt;find(key);
00612     <span class="keywordflow">if</span> ( !c )
00613         <span class="keywordflow">return</span> FALSE;
00614 
00615     c-&gt;<a class="code" href="class_qwt_curve.html#a25">setBaseline</a>(ref);
00616     <span class="keywordflow">return</span> TRUE;
00617 }
00618 
<a name="l00626"></a><a class="code" href="class_qwt_plot.html#a50">00626</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_plot.html#a50">QwtPlot::curveBaseline</a>(<span class="keywordtype">long</span> key)<span class="keyword"> const</span>
00627 <span class="keyword"></span>{
00628     <span class="keywordtype">double</span> rv = 0.0;
00629     <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *c;
00630     <span class="keywordflow">if</span> ((c = d_curves-&gt;find(key)))
00631         rv = c-&gt;<a class="code" href="class_qwt_curve.html#a26">baseline</a>();
00632     <span class="keywordflow">return</span> rv;
00633 }
00634 
<a name="l00644"></a><a class="code" href="class_qwt_plot.html#b8">00644</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b8">QwtPlot::insertLegendItem</a>(<span class="keywordtype">long</span> curveKey)
00645 {
00646     <span class="keywordflow">if</span> ( d_legend-&gt;<a class="code" href="class_qwt_legend.html#a2">isReadOnly</a>() )
00647     {
00648         <a class="code" href="class_qwt_legend_label.html">QwtLegendLabel</a> *label = 
00649             <span class="keyword">new</span> <a class="code" href="class_qwt_legend_label.html">QwtLegendLabel</a>(d_legend-&gt;<a class="code" href="class_qwt_legend.html#a6">contentsWidget</a>());
00650         d_legend-&gt;<a class="code" href="class_qwt_legend.html#a8">insertItem</a>(label, curveKey);
00651     }
00652     <span class="keywordflow">else</span>
00653     {
00654         <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a> *button = 
00655             <span class="keyword">new</span> <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a>(d_legend-&gt;<a class="code" href="class_qwt_legend.html#a6">contentsWidget</a>());
00656         connect(button, SIGNAL(clicked()), SLOT(<a class="code" href="class_qwt_plot.html#j0">lgdClicked</a>()));
00657 
00658         d_legend-&gt;<a class="code" href="class_qwt_legend.html#a8">insertItem</a>(button, curveKey);
00659     }
00660 
00661     <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(curveKey);
00662 }
00663 
<a name="l00669"></a><a class="code" href="class_qwt_plot.html#b9">00669</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b9">QwtPlot::updateLegendItem</a>(<span class="keywordtype">long</span> curveKey)
00670 {
00671     <span class="keyword">const</span> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">curve</a> = d_curves-&gt;find(curveKey);
00672     <span class="keywordflow">if</span> ( !curve )
00673         <span class="keywordflow">return</span>;
00674 
00675     QWidget *item = d_legend-&gt;<a class="code" href="class_qwt_legend.html#a9">findItem</a>(curveKey);
00676     <span class="keywordflow">if</span> (item &amp;&amp; item-&gt;inherits(<span class="stringliteral">"QwtLegendButton"</span>)) 
00677     {
00678         <a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a> *button = (<a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a> *)item;
00679 
00680         <span class="keyword">const</span> <span class="keywordtype">bool</span> doUpdate = button-&gt;isUpdatesEnabled();
00681         button-&gt;setUpdatesEnabled(FALSE);
00682 
00683         <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(curve, button);
00684 
00685         button-&gt;setUpdatesEnabled(doUpdate);
00686         button-&gt;update();
00687     }
00688     <span class="keywordflow">if</span> (item &amp;&amp; item-&gt;inherits(<span class="stringliteral">"QwtLegendLabel"</span>)) 
00689     {
00690         <a class="code" href="class_qwt_legend_label.html">QwtLegendLabel</a> *label = (<a class="code" href="class_qwt_legend_label.html">QwtLegendLabel</a> *)item;
00691 
00692         <span class="keyword">const</span> <span class="keywordtype">bool</span> doUpdate = label-&gt;isUpdatesEnabled();
00693         label-&gt;setUpdatesEnabled(FALSE);
00694 
00695         <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(curve, label);
00696 
00697         label-&gt;setUpdatesEnabled(doUpdate);
00698         label-&gt;update();
00699     }
00700 }
00701 
<a name="l00708"></a><a class="code" href="class_qwt_plot.html#b11">00708</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b9">QwtPlot::updateLegendItem</a>(
00709     <span class="keyword">const</span> <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *curve, <a class="code" href="class_qwt_legend_item.html">QwtLegendItem</a> *item)
00710 {
00711     <span class="keywordflow">if</span> ( !curve || !item )
00712         <span class="keywordflow">return</span>;
00713 
00714     <span class="keywordtype">int</span> policy = d_legend-&gt;<a class="code" href="class_qwt_legend.html#a4">displayPolicy</a>();
00715 
00716     <span class="keywordflow">if</span> (policy == QwtLegend::Fixed) 
00717     {
00718         <span class="keywordtype">int</span> mode = d_legend-&gt;<a class="code" href="class_qwt_legend.html#a5">identifierMode</a>();
00719 
00720         <span class="keywordflow">if</span> (mode &amp; QwtLegendButton::ShowLine) 
00721             item-&gt;<a class="code" href="class_qwt_legend_item.html#a7">setCurvePen</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a22">pen</a>());
00722 
00723         <span class="keywordflow">if</span> (mode &amp; QwtLegendButton::ShowSymbol) 
00724             item-&gt;<a class="code" href="class_qwt_legend_item.html#a5">setSymbol</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a30">symbol</a>());
00725 
00726         <span class="keywordflow">if</span> (mode &amp; QwtLegendButton::ShowText) 
00727             item-&gt;<a class="code" href="class_qwt_legend_item.html#a11">setTitle</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a20">title</a>());
00728         <span class="keywordflow">else</span> 
00729             item-&gt;<a class="code" href="class_qwt_legend_item.html#a11">setTitle</a>(QString::null);
00730 
00731         item-&gt;<a class="code" href="class_qwt_legend_item.html#a3">setIdentifierMode</a>(mode);
00732     } 
00733     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (policy == QwtLegend::Auto) 
00734     {
00735         <span class="keywordtype">int</span> mode = 0;
00736 
00737         <span class="keywordflow">if</span> (QwtCurve::NoCurve != curve-&gt;<a class="code" href="class_qwt_curve.html#a28">style</a>()) 
00738         {
00739             item-&gt;<a class="code" href="class_qwt_legend_item.html#a7">setCurvePen</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a22">pen</a>());
00740             mode |= QwtLegendButton::ShowLine;
00741         }
00742         <span class="keywordflow">if</span> (QwtSymbol::None != curve-&gt;<a class="code" href="class_qwt_curve.html#a30">symbol</a>().<a class="code" href="class_qwt_symbol.html#a13">style</a>()) 
00743         {
00744             item-&gt;<a class="code" href="class_qwt_legend_item.html#a5">setSymbol</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a30">symbol</a>());
00745             mode |= QwtLegendButton::ShowSymbol;
00746         }
00747         <span class="keywordflow">if</span> ( !curve-&gt;<a class="code" href="class_qwt_curve.html#a20">title</a>().isEmpty() )
00748         { 
00749             item-&gt;<a class="code" href="class_qwt_legend_item.html#a11">setTitle</a>(curve-&gt;<a class="code" href="class_qwt_curve.html#a20">title</a>());
00750             mode |= QwtLegendButton::ShowText;
00751         } 
00752         <span class="keywordflow">else</span> 
00753         {
00754             item-&gt;<a class="code" href="class_qwt_legend_item.html#a11">setTitle</a>(QString::null);
00755         }
00756         item-&gt;<a class="code" href="class_qwt_legend_item.html#a3">setIdentifierMode</a>(mode);
00757     }
00758 }
00759 
00760 <span class="comment">// Local Variables:</span>
00761 <span class="comment">// mode: C++</span>
00762 <span class="comment">// c-file-style: "stroustrup"</span>
00763 <span class="comment">// indent-tabs-mode: nil</span>
00764 <span class="comment">// End:</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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