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|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Qwt User's Guide: qwt_plot.cpp Source File</title>
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<h1>qwt_plot.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="comment">// vim: expandtab</span>
00011
00012 <span class="preprocessor">#include <qlabel.h></span>
00013 <span class="preprocessor">#include <qpainter.h></span>
00014 <span class="preprocessor">#include <qfocusdata.h></span>
00015 <span class="preprocessor">#include <qevent.h></span>
00016 <span class="preprocessor">#include "qwt_plot.h"</span>
00017 <span class="preprocessor">#include "qwt_plot_layout.h"</span>
00018 <span class="preprocessor">#include "qwt_plot_dict.h"</span>
00019 <span class="preprocessor">#include "qwt_rect.h"</span>
00020 <span class="preprocessor">#include "qwt_scale.h"</span>
00021 <span class="preprocessor">#include "qwt_scale.h"</span>
00022 <span class="preprocessor">#include "qwt_legend.h"</span>
00023 <span class="preprocessor">#include "qwt_dyngrid_layout.h"</span>
00024 <span class="preprocessor">#include "qwt_plot_canvas.h"</span>
00025 <span class="preprocessor">#include "<a class="code" href="qwt__math_8h.html">qwt_math.h</a>"</span>
00026 <span class="preprocessor">#include "qwt_paint_buffer.h"</span>
00027
<a name="l00034"></a><a class="code" href="class_qwt_plot.html#a0">00034</a> <a class="code" href="class_qwt_plot.html#a0">QwtPlot::QwtPlot</a>(QWidget *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name) :
00035 QFrame(parent, name, Qt::WRepaintNoErase|Qt::WResizeNoErase)
00036 {
00037 initPlot();
00038 }
00039
00040
<a name="l00047"></a><a class="code" href="class_qwt_plot.html#a1">00047</a> <a class="code" href="class_qwt_plot.html#a0">QwtPlot::QwtPlot</a>(<span class="keyword">const</span> QString &title, QWidget *parent, <span class="keyword">const</span> <span class="keywordtype">char</span> *name) :
00048 QFrame(parent, name, Qt::WRepaintNoErase|Qt::WResizeNoErase)
00049 {
00050 initPlot(title);
00051 }
00052
<a name="l00054"></a><a class="code" href="class_qwt_plot.html#a2">00054</a> <a class="code" href="class_qwt_plot.html#a2">QwtPlot::~QwtPlot</a>()
00055 {
00056 <span class="keyword">delete</span> d_layout;
00057 <span class="keyword">delete</span> d_curves;
00058 <span class="keyword">delete</span> d_markers;
00059 <span class="keyword">delete</span> d_grid;
00060 }
00061
00066 <span class="keywordtype">void</span> QwtPlot::initPlot(<span class="keyword">const</span> QString &title)
00067 {
00068 d_layout = <span class="keyword">new</span> <a class="code" href="class_qwt_plot_layout.html">QwtPlotLayout</a>;
00069
00070 d_curves = <span class="keyword">new</span> QwtCurveDict;
00071 d_markers = <span class="keyword">new</span> QwtMarkerDict;
00072
00073 d_autoReplot = FALSE;
00074
00075 d_lblTitle = <span class="keyword">new</span> QLabel(title, <span class="keyword">this</span>);
00076 d_lblTitle->setFont(QFont(fontInfo().family(), 14, QFont::Bold));
00077 d_lblTitle->setAlignment(Qt::AlignCenter|Qt::WordBreak|Qt::ExpandTabs);
00078
00079 d_legend = <span class="keyword">new</span> <a class="code" href="class_qwt_legend.html">QwtLegend</a>(<span class="keyword">this</span>);
00080 d_autoLegend = FALSE;
00081
00082 d_scale[yLeft] = <span class="keyword">new</span> <a class="code" href="class_qwt_scale.html">QwtScale</a>(QwtScale::Left, <span class="keyword">this</span>, <span class="stringliteral">"yLeft"</span>);
00083 d_scale[yRight] = <span class="keyword">new</span> <a class="code" href="class_qwt_scale.html">QwtScale</a>(QwtScale::Right, <span class="keyword">this</span>, <span class="stringliteral">"yRight"</span>);
00084 d_scale[xTop] = <span class="keyword">new</span> <a class="code" href="class_qwt_scale.html">QwtScale</a>(QwtScale::Top, <span class="keyword">this</span>, <span class="stringliteral">"xTop"</span>);
00085 d_scale[xBottom] = <span class="keyword">new</span> <a class="code" href="class_qwt_scale.html">QwtScale</a>(QwtScale::Bottom, <span class="keyword">this</span>, <span class="stringliteral">"xBottom"</span>);
00086
00087 initAxes();
00088
00089 d_grid = <span class="keyword">new</span> <a class="code" href="class_qwt_plot_grid.html">QwtPlotGrid</a>(<span class="keyword">this</span>);
00090 d_grid-><a class="code" href="class_qwt_grid.html#a15">setPen</a>(QPen(Qt::black, 0, Qt::DotLine));
00091 d_grid-><a class="code" href="class_qwt_grid.html#a7">enableXMin</a>(FALSE);
00092 d_grid-><a class="code" href="class_qwt_grid.html#a9">enableYMin</a>(FALSE);
00093 d_grid-><a class="code" href="class_qwt_plot_mapped_item.html#a1">setAxis</a>(xBottom, yLeft);
00094
00095 d_canvas = <span class="keyword">new</span> <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a>(<span class="keyword">this</span>);
00096 d_canvas->setFrameStyle(QFrame::Panel|QFrame::Sunken);
00097 d_canvas->setLineWidth(2);
00098 d_canvas->setMidLineWidth(0);
00099
00100 <span class="preprocessor">#ifndef QWT_NO_COMPAT</span>
00101 <span class="preprocessor"></span> connect(d_canvas, SIGNAL(mousePressed(<span class="keyword">const</span> QMouseEvent &)),
00102 <span class="keyword">this</span>, SIGNAL(<a class="code" href="class_qwt_plot.html#l0">plotMousePressed</a>(<span class="keyword">const</span> QMouseEvent &)));
00103 connect(d_canvas, SIGNAL(mouseMoved(<span class="keyword">const</span> QMouseEvent &)),
00104 <span class="keyword">this</span>, SIGNAL(<a class="code" href="class_qwt_plot.html#l2">plotMouseMoved</a>(<span class="keyword">const</span> QMouseEvent &)));
00105 connect(d_canvas, SIGNAL(mouseReleased(<span class="keyword">const</span> QMouseEvent &)),
00106 <span class="keyword">this</span>, SIGNAL(<a class="code" href="class_qwt_plot.html#l1">plotMouseReleased</a>(<span class="keyword">const</span> QMouseEvent &)));
00107 <span class="preprocessor">#endif</span>
00108 <span class="preprocessor"></span>
00109 <a class="code" href="class_qwt_plot.html#b4">updateTabOrder</a>();
00110
00111 QSizePolicy sp;
00112 sp.setHorData( QSizePolicy::MinimumExpanding );
00113 sp.setVerData( QSizePolicy::MinimumExpanding );
00114 setSizePolicy(sp);
00115 }
00116
00118 <span class="keywordtype">void</span> QwtPlot::initAxes()
00119 {
00120 <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a109">axis</a>;
00121
00122 QFont fscl(fontInfo().family(), 10);
00123 QFont fttl(fontInfo().family(), 12, QFont::Bold);
00124
00125 <span class="keywordflow">for</span>(axis = 0; axis < axisCnt; axis++)
00126 {
00127 d_scale[axis]->setFont(fscl);
00128 d_scale[axis]-><a class="code" href="class_qwt_scale.html#a7">setTitleFont</a>(fttl);
00129 d_scale[axis]-><a class="code" href="class_qwt_scale.html#a15">setBaselineDist</a>(2);
00130 }
00131
00132 d_axisEnabled[yLeft] = TRUE;
00133 d_axisEnabled[yRight] = FALSE;
00134 d_axisEnabled[xBottom] = TRUE;
00135 d_axisEnabled[xTop] = FALSE;
00136
00137 <span class="keywordflow">for</span> (axis=0; axis < axisCnt; axis++)
00138 {
00139 d_as[axis].<a class="code" href="class_qwt_auto_scale.html#a21">adjust</a>(0.0,1000.0,TRUE);
00140 d_scale[axis]-><a class="code" href="class_qwt_scale.html#a19">setScaleDiv</a>(d_as[axis].scaleDiv());
00141 }
00142 }
00143
<a name="l00147"></a><a class="code" href="class_qwt_plot.html#a175">00147</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a175">QwtPlot::event</a>(QEvent *e)
00148 {
00149 <span class="keywordtype">bool</span> ok = QFrame::event(e);
00150 <span class="keywordflow">switch</span>(e->type())
00151 {
00152 <span class="preprocessor">#if 0</span>
00153 <span class="preprocessor"></span> <span class="keywordflow">case</span> QEvent::ChildInserted:
00154 <span class="keywordflow">case</span> QEvent::ChildRemoved:
00155 <span class="preprocessor">#endif</span>
00156 <span class="preprocessor"></span> <span class="keywordflow">case</span> QEvent::LayoutHint:
00157 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
00158 <span class="keywordflow">break</span>;
00159 <span class="keywordflow">default</span>:;
00160 }
00161 <span class="keywordflow">return</span> ok;
00162 }
00163
<a name="l00168"></a><a class="code" href="class_qwt_plot.html#b0">00168</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b0">QwtPlot::autoRefresh</a>()
00169 {
00170 <span class="keywordflow">if</span> (d_autoReplot)
00171 <a class="code" href="class_qwt_plot.html#i5">replot</a>();
00172 }
00173
<a name="l00188"></a><a class="code" href="class_qwt_plot.html#a11">00188</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a11">QwtPlot::setAutoReplot</a>(<span class="keywordtype">bool</span> tf)
00189 {
00190 d_autoReplot = tf;
00191 }
00192
<a name="l00196"></a><a class="code" href="class_qwt_plot.html#a12">00196</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a12">QwtPlot::autoReplot</a>()<span class="keyword"> const</span>
00197 <span class="keyword"></span>{
00198 <span class="keywordflow">return</span> d_autoReplot;
00199 }
00200
<a name="l00205"></a><a class="code" href="class_qwt_plot.html#a25">00205</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a25">QwtPlot::setTitle</a>(<span class="keyword">const</span> QString &t)
00206 {
00207 d_lblTitle->setText(t);
00208 }
00209
<a name="l00214"></a><a class="code" href="class_qwt_plot.html#a26">00214</a> QString <a class="code" href="class_qwt_plot.html#a26">QwtPlot::title</a>()<span class="keyword"> const</span>
00215 <span class="keyword"></span>{
00216 <span class="keywordflow">return</span> d_lblTitle->text();
00217 }
00218
00219
<a name="l00224"></a><a class="code" href="class_qwt_plot.html#a27">00224</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a27">QwtPlot::setTitleFont</a>(<span class="keyword">const</span> QFont &f)
00225 {
00226 d_lblTitle->setFont(f);
00227 }
00228
<a name="l00232"></a><a class="code" href="class_qwt_plot.html#a28">00232</a> QFont <a class="code" href="class_qwt_plot.html#a28">QwtPlot::titleFont</a>()<span class="keyword"> const</span>
00233 <span class="keyword"></span>{
00234 <span class="keywordflow">return</span> d_lblTitle->font();
00235 }
00236
<a name="l00240"></a><a class="code" href="class_qwt_plot.html#a21">00240</a> QwtPlotLayout *<a class="code" href="class_qwt_plot.html#a21">QwtPlot::plotLayout</a>()
00241 {
00242 <span class="keywordflow">return</span> d_layout;
00243 }
00244
<a name="l00248"></a><a class="code" href="class_qwt_plot.html#a22">00248</a> <span class="keyword">const</span> QwtPlotLayout *<a class="code" href="class_qwt_plot.html#a21">QwtPlot::plotLayout</a>()<span class="keyword"> const</span>
00249 <span class="keyword"></span>{
00250 <span class="keywordflow">return</span> d_layout;
00251 }
00252
<a name="l00256"></a><a class="code" href="class_qwt_plot.html#a29">00256</a> QLabel *<a class="code" href="class_qwt_plot.html#a29">QwtPlot::titleLabel</a>()
00257 {
00258 <span class="keywordflow">return</span> d_lblTitle;
00259 }
00260
<a name="l00264"></a><a class="code" href="class_qwt_plot.html#a30">00264</a> <span class="keyword">const</span> QLabel *<a class="code" href="class_qwt_plot.html#a29">QwtPlot::titleLabel</a>()<span class="keyword"> const</span>
00265 <span class="keyword"></span>{
00266 <span class="keywordflow">return</span> d_lblTitle;
00267 }
00268
<a name="l00273"></a><a class="code" href="class_qwt_plot.html#a170">00273</a> <a class="code" href="class_qwt_legend.html">QwtLegend</a> *<a class="code" href="class_qwt_plot.html#a170">QwtPlot::legend</a>()
00274 {
00275 <span class="keywordflow">return</span> d_legend;
00276 }
00277
<a name="l00282"></a><a class="code" href="class_qwt_plot.html#a171">00282</a> <span class="keyword">const</span> <a class="code" href="class_qwt_legend.html">QwtLegend</a> *<a class="code" href="class_qwt_plot.html#a170">QwtPlot::legend</a>()<span class="keyword"> const</span>
00283 <span class="keyword"></span>{
00284 <span class="keywordflow">return</span> d_legend;
00285 }
00286
00287
<a name="l00291"></a><a class="code" href="class_qwt_plot.html#a31">00291</a> <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *<a class="code" href="class_qwt_plot.html#a31">QwtPlot::canvas</a>()
00292 {
00293 <span class="keywordflow">return</span> d_canvas;
00294 }
00295
<a name="l00299"></a><a class="code" href="class_qwt_plot.html#a32">00299</a> <span class="keyword">const</span> <a class="code" href="class_qwt_plot_canvas.html">QwtPlotCanvas</a> *<a class="code" href="class_qwt_plot.html#a31">QwtPlot::canvas</a>()<span class="keyword"> const</span>
00300 <span class="keyword"></span>{
00301 <span class="keywordflow">return</span> d_canvas;
00302 }
00303
<a name="l00309"></a><a class="code" href="class_qwt_plot.html#a173">00309</a> QSize <a class="code" href="class_qwt_plot.html#a173">QwtPlot::sizeHint</a>()<span class="keyword"> const</span>
00310 <span class="keyword"></span>{
00311 <span class="keywordtype">int</span> dw = 0;
00312 <span class="keywordtype">int</span> dh = 0;
00313 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = 0; axis < axisCnt; axis++ )
00314 {
00315 <span class="keywordflow">if</span> ( d_axisEnabled[axis] )
00316 {
00317 <span class="keyword">const</span> <span class="keywordtype">int</span> niceDist = 40;
00318 <span class="keyword">const</span> <a class="code" href="class_qwt_scale.html">QwtScale</a> *scale = d_scale[axis];
00319 <span class="keyword">const</span> <span class="keywordtype">int</span> majCnt = scale-><a class="code" href="class_qwt_scale.html#a21">scaleDraw</a>()-><a class="code" href="class_qwt_scale_draw.html#a17">scaleDiv</a>().<a class="code" href="class_qwt_scale_div.html#a6">majCnt</a>();
00320
00321 <span class="keywordflow">if</span> ( axis == yLeft || axis == yRight )
00322 {
00323 <span class="keywordtype">int</span> hDiff = (majCnt - 1) * niceDist
00324 - scale-><a class="code" href="class_qwt_scale.html#a27">minimumSizeHint</a>().height();
00325 <span class="keywordflow">if</span> ( hDiff > dh )
00326 dh = hDiff;
00327 }
00328 <span class="keywordflow">else</span>
00329 {
00330 <span class="keywordtype">int</span> wDiff = (majCnt - 1) * niceDist
00331 - scale-><a class="code" href="class_qwt_scale.html#a27">minimumSizeHint</a>().width();
00332 <span class="keywordflow">if</span> ( wDiff > dw )
00333 dw = wDiff;
00334 }
00335 }
00336 }
00337 <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot.html#a174">minimumSizeHint</a>() + QSize(dw, dh);
00338 }
00339
<a name="l00343"></a><a class="code" href="class_qwt_plot.html#a174">00343</a> QSize <a class="code" href="class_qwt_plot.html#a174">QwtPlot::minimumSizeHint</a>()<span class="keyword"> const</span>
00344 <span class="keyword"></span>{
00345 QSize hint = d_layout-><a class="code" href="class_qwt_plot_layout.html#a17">minimumSizeHint</a>(<span class="keyword">this</span>);
00346 hint += QSize(2 * frameWidth(), 2 * frameWidth());
00347
00348 <span class="keywordflow">return</span> hint;
00349 }
00350
<a name="l00352"></a><a class="code" href="class_qwt_plot.html#b7">00352</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b7">QwtPlot::resizeEvent</a>(QResizeEvent *e)
00353 {
00354 QFrame::resizeEvent(e);
00355 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
00356 }
00357
<a name="l00368"></a><a class="code" href="class_qwt_plot.html#i5">00368</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#i5">QwtPlot::replot</a>()
00369 {
00370 <span class="keywordtype">bool</span> doAutoReplot = <a class="code" href="class_qwt_plot.html#a12">autoReplot</a>();
00371 <a class="code" href="class_qwt_plot.html#a11">setAutoReplot</a>(FALSE);
00372
00373 <a class="code" href="class_qwt_plot.html#b5">updateAxes</a>();
00374
00375 d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a5">invalidateCache</a>();
00376 d_canvas->repaint(d_canvas->contentsRect(), FALSE);
00377
00378 <a class="code" href="class_qwt_plot.html#a11">setAutoReplot</a>(doAutoReplot);
00379 }
00380
<a name="l00385"></a><a class="code" href="class_qwt_plot.html#b6">00385</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b6">QwtPlot::updateLayout</a>()
00386 {
00387 d_layout-><a class="code" href="class_qwt_plot_layout.html#a18">activate</a>(<span class="keyword">this</span>, contentsRect());
00388
00389 <span class="comment">//</span>
00390 <span class="comment">// resize and show the visible widgets</span>
00391 <span class="comment">//</span>
00392 <span class="keywordflow">if</span> (!d_lblTitle->text().isEmpty())
00393 {
00394 d_lblTitle->setGeometry(d_layout-><a class="code" href="class_qwt_plot_layout.html#a20">titleRect</a>());
00395 <span class="keywordflow">if</span> (!d_lblTitle->isVisible())
00396 d_lblTitle->show();
00397 }
00398 <span class="keywordflow">else</span>
00399 d_lblTitle->hide();
00400
00401 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> axis = 0; axis < axisCnt; axis++ )
00402 {
00403 <span class="keywordflow">if</span> (d_axisEnabled[axis])
00404 {
00405 d_scale[axis]->setGeometry(d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis));
00406
00407 <span class="keywordflow">if</span> ( axis == xBottom || axis == xTop )
00408 {
00409 QRegion r(d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis));
00410 <span class="keywordflow">if</span> ( d_axisEnabled[yLeft] )
00411 r = r.subtract(QRegion(d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(yLeft)));
00412 <span class="keywordflow">if</span> ( d_axisEnabled[yRight] )
00413 r = r.subtract(QRegion(d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(yRight)));
00414 r.translate(-d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis).x(),
00415 -d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis).y());
00416
00417 d_scale[axis]->setMask(r);
00418 }
00419 <span class="keywordflow">if</span> (!d_scale[axis]->isVisible())
00420 d_scale[axis]->show();
00421 }
00422 <span class="keywordflow">else</span>
00423 d_scale[axis]->hide();
00424 }
00425
00426 <span class="keywordflow">if</span> (d_legend-><a class="code" href="class_qwt_legend.html#a16">itemCount</a>() > 0)
00427 {
00428 d_legend->setGeometry(d_layout-><a class="code" href="class_qwt_plot_layout.html#a21">legendRect</a>());
00429 d_legend->show();
00430 }
00431 <span class="keywordflow">else</span>
00432 d_legend->hide();
00433
00434 d_canvas->setGeometry(d_layout-><a class="code" href="class_qwt_plot_layout.html#a23">canvasRect</a>());
00435 }
00436
<a name="l00438"></a><a class="code" href="class_qwt_plot.html#b5">00438</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b5">QwtPlot::updateAxes</a>()
00439 {
00440 <span class="keywordtype">int</span> i;
00441 <span class="keywordtype">bool</span> resetDone[axisCnt];
00442 <span class="keywordflow">for</span> (i = 0; i < axisCnt; i++)
00443 resetDone[i] = FALSE;
00444
00445 <span class="comment">//</span>
00446 <span class="comment">// Adjust autoscalers</span>
00447 <span class="comment">//</span>
00448
00449 QwtPlotCurveIterator itc = <a class="code" href="class_qwt_plot.html#a37">curveIterator</a>();
00450 <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 )
00451 {
00452 <span class="keyword">const</span> <span class="keywordtype">int</span> xAxis = c-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>();
00453 <span class="keyword">const</span> <span class="keywordtype">int</span> yAxis = c-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>();
00454
00455 <span class="keywordflow">if</span> ( d_as[xAxis].<a class="code" href="class_qwt_auto_scale.html#a3">autoScale</a>() || d_as[yAxis].<a class="code" href="class_qwt_auto_scale.html#a3">autoScale</a>() )
00456 {
00457 <span class="keyword">const</span> <a class="code" href="class_qwt_double_rect.html">QwtDoubleRect</a> rect = c-><a class="code" href="class_qwt_curve.html#a12">boundingRect</a>();
00458 <span class="keywordflow">if</span> ( rect.<a class="code" href="class_qwt_double_rect.html#a5">isValid</a>() )
00459 {
00460 <span class="keywordflow">if</span> ( d_as[xAxis].<a class="code" href="class_qwt_auto_scale.html#a3">autoScale</a>() )
00461 {
00462 <span class="keywordflow">if</span> ( !resetDone[xAxis] )
00463 {
00464 d_as[xAxis].<a class="code" href="class_qwt_auto_scale.html#a25">reset</a>();
00465 resetDone[xAxis] = TRUE;
00466 }
00467 d_as[xAxis].<a class="code" href="class_qwt_auto_scale.html#a21">adjust</a>(rect.<a class="code" href="class_qwt_double_rect.html#a7">x1</a>(), rect.<a class="code" href="class_qwt_double_rect.html#a8">x2</a>());
00468 }
00469
00470 <span class="keywordflow">if</span> ( d_as[yAxis].<a class="code" href="class_qwt_auto_scale.html#a3">autoScale</a>() )
00471 {
00472 <span class="keywordflow">if</span> ( !resetDone[yAxis] )
00473 {
00474 d_as[yAxis].<a class="code" href="class_qwt_auto_scale.html#a25">reset</a>();
00475 resetDone[yAxis] = TRUE;
00476 }
00477 d_as[yAxis].<a class="code" href="class_qwt_auto_scale.html#a21">adjust</a>(rect.<a class="code" href="class_qwt_double_rect.html#a9">y1</a>(), rect.<a class="code" href="class_qwt_double_rect.html#a10">y2</a>());
00478 }
00479 }
00480 }
00481 }
00482
00483 <span class="comment">//</span>
00484 <span class="comment">// Adjust scales</span>
00485 <span class="comment">//</span>
00486 <span class="keywordflow">for</span> (i = 0; i < axisCnt; i++)
00487 {
00488 d_scale[i]-><a class="code" href="class_qwt_scale.html#a19">setScaleDiv</a>(d_as[i].scaleDiv());
00489
00490 <span class="keywordtype">int</span> startDist, endDist;
00491 d_scale[i]-><a class="code" href="class_qwt_scale.html#a14">minBorderDist</a>(startDist, endDist);
00492 d_scale[i]-><a class="code" href="class_qwt_scale.html#a11">setBorderDist</a>(startDist, endDist);
00493 }
00494
00495 d_grid-><a class="code" href="class_qwt_grid.html#a11">setXDiv</a>(d_as[d_grid-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()].scaleDiv());
00496 d_grid-><a class="code" href="class_qwt_grid.html#a13">setYDiv</a>(d_as[d_grid-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()].scaleDiv());
00497 }
00498
00500
<a name="l00501"></a><a class="code" href="class_qwt_plot.html#b4">00501</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b4">QwtPlot::updateTabOrder</a>()
00502 {
00503 <span class="comment">// Depending on the position of the legend the </span>
00504 <span class="comment">// tab order will be changed that the canvas is</span>
00505 <span class="comment">// next to the last legend item, or directly before</span>
00506 <span class="comment">// the first one. The following code seems much too</span>
00507 <span class="comment">// complicated but is there a better implementation ?</span>
00508
00509 <span class="keywordflow">if</span> ( d_canvas->focusPolicy() == QWidget::NoFocus || focusData() == NULL )
00510 <span class="keywordflow">return</span>;
00511
00512 <span class="comment">// move the cursor to the canvas</span>
00513
00514 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < focusData()->count(); i++ )
00515 {
00516 <span class="keywordflow">if</span> ( focusData()->next() == d_canvas )
00517 <span class="keywordflow">break</span>;
00518 }
00519
00520 <span class="keyword">const</span> <span class="keywordtype">bool</span> canvasFirst = d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>() == QwtPlot::Bottom ||
00521 d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>() == QwtPlot::Right;
00522
00523 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> j = 0; j < focusData()->count(); j++ )
00524 {
00525 QWidget *w = canvasFirst ? focusData()->next() : focusData()->prev();
00526
00527 <span class="keywordflow">if</span> ( w->focusPolicy() != QWidget::NoFocus
00528 && w->parent() && w->parent() == d_legend-><a class="code" href="class_qwt_legend.html#a6">contentsWidget</a>() )
00529 {
00530 <span class="keywordflow">if</span> ( canvasFirst )
00531 {
00532 <span class="keywordflow">do</span> <span class="comment">// go back to last non legend item</span>
00533 {
00534 w = focusData()->prev(); <span class="comment">// before the first legend item</span>
00535 } <span class="keywordflow">while</span> ( w->focusPolicy() == QWidget::NoFocus );
00536 }
00537
00538 <span class="keywordflow">if</span> ( w != d_canvas )
00539 setTabOrder(w, d_canvas);
00540 <span class="keywordflow">break</span>;
00541 }
00542 }
00543 }
00544
00546 <span class="comment">// \sa QFrame::drawContents</span>
00547
<a name="l00548"></a><a class="code" href="class_qwt_plot.html#b3">00548</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b3">QwtPlot::drawContents</a>( QPainter * )
00549 {
00550 <span class="comment">// We must erase the region that is not</span>
00551 <span class="comment">// occupied by our children</span>
00552 QRegion cr( contentsRect() );
00553 cr = cr.subtract( childrenRegion() );
00554 erase( cr );
00555 }
00556
<a name="l00567"></a><a class="code" href="class_qwt_plot.html#b1">00567</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b1">QwtPlot::drawCanvas</a>(QPainter *painter)
00568 {
00569 QwtArray<QwtDiMap> map(axisCnt);
00570 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> axis = 0; axis < axisCnt; axis++ )
00571 map[axis] = <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(axis);
00572
00573 <a class="code" href="class_qwt_plot.html#b2">drawCanvasItems</a>(painter,
00574 d_canvas->contentsRect(), map, <a class="code" href="class_qwt_plot_print_filter.html">QwtPlotPrintFilter</a>());
00575 }
00576
<a name="l00585"></a><a class="code" href="class_qwt_plot.html#b2">00585</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b2">QwtPlot::drawCanvasItems</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect,
00586 <span class="keyword">const</span> QwtArray<QwtDiMap> &map, <span class="keyword">const</span> <a class="code" href="class_qwt_plot_print_filter.html">QwtPlotPrintFilter</a> &pfilter)<span class="keyword"> const</span>
00587 <span class="keyword"></span>{
00588 <span class="comment">//</span>
00589 <span class="comment">// draw grid</span>
00590 <span class="comment">//</span>
00591 <span class="keywordflow">if</span> ( pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintGrid )
00592 {
00593 <span class="keywordflow">if</span> ( d_grid-><a class="code" href="class_qwt_plot_item.html#a6">enabled</a>() )
00594 {
00595 d_grid-><a class="code" href="class_qwt_grid.html#a2">draw</a>(painter, rect,
00596 map[d_grid-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()], map[d_grid-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()]);
00597 }
00598 }
00599
00600 <span class="comment">//</span>
00601 <span class="comment">// draw curves</span>
00602 <span class="comment">//</span>
00603 QwtPlotCurveIterator itc = <a class="code" href="class_qwt_plot.html#a37">curveIterator</a>();
00604 <span class="keywordflow">for</span> (<a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">curve</a> = itc.toFirst(); curve != 0; curve = ++itc )
00605 {
00606 <span class="keywordflow">if</span> ( curve-><a class="code" href="class_qwt_plot_item.html#a6">enabled</a>() )
00607 {
00608 curve-><a class="code" href="class_qwt_curve.html#a33">draw</a>(painter,
00609 map[curve-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()], map[curve-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()]);
00610 }
00611 }
00612
00613 <span class="comment">//</span>
00614 <span class="comment">// draw markers</span>
00615 <span class="comment">//</span>
00616 QwtPlotMarkerIterator itm = <a class="code" href="class_qwt_plot.html#a38">markerIterator</a>();
00617 <span class="keywordflow">for</span> (<a class="code" href="class_qwt_plot_marker.html">QwtPlotMarker</a> *<a class="code" href="class_qwt_plot.html#a129">marker</a> = itm.toFirst(); marker != 0; marker = ++itm )
00618 {
00619 <span class="keywordflow">if</span> ( marker-><a class="code" href="class_qwt_plot_item.html#a6">enabled</a>() )
00620 {
00621 marker-><a class="code" href="class_qwt_marker.html#a21">draw</a>(painter,
00622 map[marker-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()].transform(marker-><a class="code" href="class_qwt_plot_marker.html#a1">xValue</a>()),
00623 map[marker-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()].transform(marker-><a class="code" href="class_qwt_plot_marker.html#a2">yValue</a>()),
00624 rect);
00625 }
00626 }
00627 }
00628
<a name="l00641"></a><a class="code" href="class_qwt_plot.html#a74">00641</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a74">QwtPlot::drawCurve</a>(<span class="keywordtype">long</span> key, <span class="keywordtype">int</span> from, <span class="keywordtype">int</span> to)
00642 {
00643 <a class="code" href="class_qwt_plot_curve.html">QwtPlotCurve</a> *<a class="code" href="class_qwt_plot.html#a44">curve</a> = d_curves->find(key);
00644 <span class="keywordflow">if</span> ( !curve )
00645 <span class="keywordflow">return</span>;
00646
00647 QPainter p(<a class="code" href="class_qwt_plot.html#a31">canvas</a>());
00648
00649 p.setClipping(TRUE);
00650 p.setClipRect(<a class="code" href="class_qwt_plot.html#a31">canvas</a>()->contentsRect());
00651
00652 curve-><a class="code" href="class_qwt_curve.html#a33">draw</a>(&p,
00653 <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(curve-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()), <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(curve-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()),
00654 from, to);
00655
00656 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot.html#a31">canvas</a>()-><a class="code" href="class_qwt_plot_canvas.html#a3">cacheMode</a>() && <a class="code" href="class_qwt_plot.html#a31">canvas</a>()-><a class="code" href="class_qwt_plot_canvas.html#a4">cache</a>())
00657 {
00658 QPainter cachePainter(<a class="code" href="class_qwt_plot.html#a31">canvas</a>()->cache());
00659 cachePainter.translate(-<a class="code" href="class_qwt_plot.html#a31">canvas</a>()->contentsRect().x(),
00660 -<a class="code" href="class_qwt_plot.html#a31">canvas</a>()->contentsRect().y());
00661
00662 curve-><a class="code" href="class_qwt_curve.html#a33">draw</a>(&cachePainter,
00663 <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(curve-><a class="code" href="class_qwt_plot_mapped_item.html#a3">xAxis</a>()), <a class="code" href="class_qwt_plot.html#a39">canvasMap</a>(curve-><a class="code" href="class_qwt_plot_mapped_item.html#a5">yAxis</a>()),
00664 from, to);
00665 }
00666 }
00667
<a name="l00675"></a><a class="code" href="class_qwt_plot.html#a39">00675</a> <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> <a class="code" href="class_qwt_plot.html#a39">QwtPlot::canvasMap</a>(<span class="keywordtype">int</span> axis)<span class="keyword"> const</span>
00676 <span class="keyword"></span>{
00677 <a class="code" href="class_qwt_di_map.html">QwtDiMap</a> map;
00678 <span class="keywordflow">if</span> ( !d_canvas )
00679 <span class="keywordflow">return</span> map;
00680
00681 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &sd = d_as[axis].<a class="code" href="class_qwt_auto_scale.html#a20">scaleDiv</a>();
00682 map.<a class="code" href="class_qwt_di_map.html#a6">setDblRange</a>(sd.<a class="code" href="class_qwt_scale_div.html#a3">lBound</a>(), sd.<a class="code" href="class_qwt_scale_div.html#a4">hBound</a>(), sd.<a class="code" href="class_qwt_scale_div.html#a7">logScale</a>());
00683
00684 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot.html#a97">axisEnabled</a>(axis) )
00685 {
00686 <span class="keyword">const</span> <a class="code" href="class_qwt_scale.html">QwtScale</a> *s = d_scale[axis];
00687 <span class="keywordflow">if</span> ( axis == yLeft || axis == yRight )
00688 {
00689 <span class="keywordtype">int</span> y = s->y() + s-><a class="code" href="class_qwt_scale.html#a12">startBorderDist</a>() - d_canvas->y();
00690 <span class="keywordtype">int</span> h = s->height() - s-><a class="code" href="class_qwt_scale.html#a12">startBorderDist</a>() - s-><a class="code" href="class_qwt_scale.html#a13">endBorderDist</a>();
00691 map.<a class="code" href="class_qwt_di_map.html#a5">setIntRange</a>(y + h - 1, y);
00692 }
00693 <span class="keywordflow">else</span>
00694 {
00695 <span class="keywordtype">int</span> x = s->x() + s-><a class="code" href="class_qwt_scale.html#a12">startBorderDist</a>() - d_canvas->x();
00696 <span class="keywordtype">int</span> w = s->width() - s-><a class="code" href="class_qwt_scale.html#a12">startBorderDist</a>() - s-><a class="code" href="class_qwt_scale.html#a13">endBorderDist</a>();
00697 map.<a class="code" href="class_qwt_di_map.html#a5">setIntRange</a>(x, x + w - 1);
00698 }
00699 }
00700 <span class="keywordflow">else</span>
00701 {
00702 <span class="keyword">const</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a24">margin</a> = <a class="code" href="class_qwt_plot.html#a21">plotLayout</a>()-><a class="code" href="class_qwt_plot_layout.html#a5">canvasMargin</a>(axis);
00703
00704 <span class="keyword">const</span> QRect &canvasRect = d_canvas->contentsRect();
00705 <span class="keywordflow">if</span> ( axis == yLeft || axis == yRight )
00706 {
00707 map.<a class="code" href="class_qwt_di_map.html#a5">setIntRange</a>(canvasRect.bottom() - margin,
00708 canvasRect.top() + margin);
00709 }
00710 <span class="keywordflow">else</span>
00711 {
00712 map.<a class="code" href="class_qwt_di_map.html#a5">setIntRange</a>(canvasRect.left() + margin,
00713 canvasRect.right() - margin);
00714 }
00715 }
00716 <span class="keywordflow">return</span> map;
00717 }
00718
<a name="l00726"></a><a class="code" href="class_qwt_plot.html#a23">00726</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a23">QwtPlot::setMargin</a>(<span class="keywordtype">int</span> margin)
00727 {
00728 <span class="keywordflow">if</span> ( margin < 0 )
00729 margin = 0;
00730
00731 <span class="keywordflow">if</span> ( margin != d_layout-><a class="code" href="class_qwt_plot_layout.html#a3">margin</a>() )
00732 {
00733 d_layout-><a class="code" href="class_qwt_plot_layout.html#a2">setMargin</a>(margin);
00734 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
00735 }
00736 }
00737
<a name="l00742"></a><a class="code" href="class_qwt_plot.html#a24">00742</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a24">QwtPlot::margin</a>()<span class="keyword"> const</span>
00743 <span class="keyword"></span>{
00744 <span class="keywordflow">return</span> d_layout-><a class="code" href="class_qwt_plot_layout.html#a3">margin</a>();
00745 }
00746
<a name="l00755"></a><a class="code" href="class_qwt_plot.html#a33">00755</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a33">QwtPlot::setCanvasBackground</a>(<span class="keyword">const</span> QColor &c)
00756 {
00757 QPalette p = d_canvas->palette();
00758
00759 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i < QPalette::NColorGroups; i++ )
00760 p.setColor((QPalette::ColorGroup)i, QColorGroup::Background, c);
00761
00762 <a class="code" href="class_qwt_plot.html#a31">canvas</a>()->setPalette(p);
00763 }
00764
<a name="l00771"></a><a class="code" href="class_qwt_plot.html#a34">00771</a> <span class="keyword">const</span> QColor & <a class="code" href="class_qwt_plot.html#a34">QwtPlot::canvasBackground</a>()<span class="keyword"> const</span>
00772 <span class="keyword"></span>{
00773 <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot.html#a31">canvas</a>()->palette().color(
00774 QPalette::Normal, QColorGroup::Background);
00775 }
00776
<a name="l00783"></a><a class="code" href="class_qwt_plot.html#a35">00783</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a35">QwtPlot::setCanvasLineWidth</a>(<span class="keywordtype">int</span> w)
00784 {
00785 <a class="code" href="class_qwt_plot.html#a31">canvas</a>()->setLineWidth(w);
00786 }
00787
<a name="l00793"></a><a class="code" href="class_qwt_plot.html#a36">00793</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a36">QwtPlot::canvasLineWidth</a>()<span class="keyword"> const</span>
00794 <span class="keyword"></span>{
00795 <span class="keywordflow">return</span> <a class="code" href="class_qwt_plot.html#a31">canvas</a>()->lineWidth();
00796 }
00797
00798 <span class="preprocessor">#ifndef QWT_NO_COMPAT</span>
00799 <span class="preprocessor"></span>
<a name="l00814"></a><a class="code" href="class_qwt_plot.html#a15">00814</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a15">QwtPlot::enableOutline</a>(<span class="keywordtype">bool</span> tf)
00815 {
00816 d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a6">enableOutline</a>(tf);
00817 }
00818
<a name="l00852"></a><a class="code" href="class_qwt_plot.html#a17">00852</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a17">QwtPlot::setOutlineStyle</a>(Qwt::Shape os)
00853 {
00854 d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a10">setOutlineStyle</a>(os);
00855 }
00856
<a name="l00865"></a><a class="code" href="class_qwt_plot.html#a19">00865</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a19">QwtPlot::setOutlinePen</a>(<span class="keyword">const</span> QPen &pn)
00866 {
00867 d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a8">setOutlinePen</a>(pn);
00868 }
00869
<a name="l00876"></a><a class="code" href="class_qwt_plot.html#a16">00876</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a16">QwtPlot::outlineEnabled</a>()<span class="keyword"> const</span>
00877 <span class="keyword"></span>{
00878 <span class="keywordflow">return</span> d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a7">outlineEnabled</a>();
00879 }
00880
<a name="l00887"></a><a class="code" href="class_qwt_plot.html#a20">00887</a> <span class="keyword">const</span> QPen & <a class="code" href="class_qwt_plot.html#a20">QwtPlot::outlinePen</a>()<span class="keyword"> const</span>
00888 <span class="keyword"></span>{
00889 <span class="keywordflow">return</span> d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a9">outlinePen</a>();
00890 }
00891
<a name="l00900"></a><a class="code" href="class_qwt_plot.html#a18">00900</a> Qwt::Shape <a class="code" href="class_qwt_plot.html#a18">QwtPlot::outlineStyle</a>()<span class="keyword"> const</span>
00901 <span class="keyword"></span>{
00902 <span class="keywordflow">return</span> d_canvas-><a class="code" href="class_qwt_plot_canvas.html#a11">outlineStyle</a>();
00903 }
00904
00905 <span class="preprocessor">#endif // ! QWT_NO_COMPAT</span>
00906 <span class="preprocessor"></span>
<a name="l00911"></a><a class="code" href="class_qwt_plot.html#f0">00911</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#f0">QwtPlot::axisValid</a>(<span class="keywordtype">int</span> axis)
00912 {
00913 <span class="keywordflow">return</span> ((axis >= QwtPlot::yLeft) && (axis < QwtPlot::axisCnt));
00914 }
00915
<a name="l00921"></a><a class="code" href="class_qwt_plot.html#j0">00921</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#j0">QwtPlot::lgdClicked</a>()
00922 {
00923 <span class="keywordflow">if</span> ( sender()->isWidgetType() )
00924 {
00925 <span class="keywordtype">long</span> key = d_legend-><a class="code" href="class_qwt_legend.html#a13">key</a>((QWidget *)sender());
00926 <span class="keywordflow">if</span> ( key >= 0 )
00927 emit <a class="code" href="class_qwt_plot.html#l3">legendClicked</a>(key);
00928 }
00929 }
00930
<a name="l00932"></a><a class="code" href="class_qwt_plot.html#i0">00932</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#i0">QwtPlot::clear</a>()
00933 {
00934 d_legend-><a class="code" href="class_qwt_legend.html#a14">clear</a>();
00935 d_curves->clear();
00936 d_markers->clear();
00937 }
00938
00939
<a name="l00941"></a><a class="code" href="class_qwt_plot.html#i2">00941</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#i2">QwtPlot::removeCurves</a>()
00942 {
00943 d_curves->clear();
00944 d_legend-><a class="code" href="class_qwt_legend.html#a14">clear</a>();
00945 <a class="code" href="class_qwt_plot.html#b0">autoRefresh</a>();
00946 }
00947
<a name="l00949"></a><a class="code" href="class_qwt_plot.html#i4">00949</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#i4">QwtPlot::removeMarkers</a>()
00950 {
00951 d_markers->clear();
00952 <a class="code" href="class_qwt_plot.html#b0">autoRefresh</a>();
00953 }
00954
<a name="l00965"></a><a class="code" href="class_qwt_plot.html#a157">00965</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a157">QwtPlot::setAutoLegend</a>(<span class="keywordtype">bool</span> tf)
00966 {
00967 d_autoLegend = tf;
00968 }
00969
<a name="l00973"></a><a class="code" href="class_qwt_plot.html#a158">00973</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a158">QwtPlot::autoLegend</a>()<span class="keyword"> const</span>
00974 <span class="keyword"></span>{
00975 <span class="keywordflow">return</span> d_autoLegend;
00976 }
00977
00978
<a name="l00988"></a><a class="code" href="class_qwt_plot.html#a159">00988</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a159">QwtPlot::enableLegend</a>(<span class="keywordtype">bool</span> enable, <span class="keywordtype">long</span> curveKey)
00989 {
00990 <span class="keywordtype">bool</span> isUpdateEnabled = d_legend->isUpdatesEnabled();
00991 d_legend->setUpdatesEnabled(FALSE);
00992
00993 <span class="keywordflow">if</span> ( curveKey < 0 ) <span class="comment">// legends for all curves</span>
00994 {
00995 <span class="keywordflow">if</span> ( enable )
00996 {
00997 <span class="keywordflow">if</span> ( d_legend-><a class="code" href="class_qwt_legend.html#a16">itemCount</a>() < d_curves->count() )
00998 {
00999 <span class="comment">// not all curves have a legend</span>
01000
01001 d_legend-><a class="code" href="class_qwt_legend.html#a14">clear</a>();
01002
01003 QwtPlotCurveIterator itc = <a class="code" href="class_qwt_plot.html#a37">curveIterator</a>();
01004 <span class="keywordflow">for</span> ( <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> = itc.toFirst();
01005 curve != 0; curve = ++itc )
01006 {
01007 <a class="code" href="class_qwt_plot.html#b8">insertLegendItem</a>(itc.currentKey());
01008 }
01009 }
01010 }
01011 <span class="keywordflow">else</span>
01012 {
01013 d_legend-><a class="code" href="class_qwt_legend.html#a14">clear</a>();
01014 }
01015 }
01016 <span class="keywordflow">else</span>
01017 {
01018 QWidget *legendItem = d_legend-><a class="code" href="class_qwt_legend.html#a9">findItem</a>(curveKey);
01019 <span class="keywordflow">if</span> ( enable )
01020 {
01021 <span class="keywordflow">if</span> ( d_curves->find(curveKey) && !legendItem )
01022 <a class="code" href="class_qwt_plot.html#b8">insertLegendItem</a>(curveKey);
01023 }
01024 <span class="keywordflow">else</span>
01025 <span class="keyword">delete</span> legendItem;
01026 }
01027
01028 d_legend->setUpdatesEnabled(isUpdateEnabled);
01029 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
01030 }
01031
<a name="l01037"></a><a class="code" href="class_qwt_plot.html#a160">01037</a> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_plot.html#a160">QwtPlot::legendEnabled</a>(<span class="keywordtype">long</span> curveKey)<span class="keyword"> const</span>
01038 <span class="keyword"></span>{
01039 <span class="keywordflow">return</span> d_legend-><a class="code" href="class_qwt_legend.html#a9">findItem</a>(curveKey) != 0;
01040 }
01041
<a name="l01060"></a><a class="code" href="class_qwt_plot.html#a161">01060</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a161">QwtPlot::setLegendPosition</a>(QwtPlot::Position pos, <span class="keywordtype">double</span> ratio)
01061 {
01062 <span class="keywordflow">if</span> (pos != d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>())
01063 {
01064 d_layout-><a class="code" href="class_qwt_plot_layout.html#a10">setLegendPosition</a>(pos, ratio);
01065
01066 QLayout *l = d_legend-><a class="code" href="class_qwt_legend.html#a6">contentsWidget</a>()->layout();
01067 <span class="keywordflow">if</span> ( l && l->inherits(<span class="stringliteral">"QwtDynGridLayout"</span>) )
01068 {
01069 <a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *tl = (<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *)l;
01070 <span class="keywordflow">if</span> ( d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>() == QwtPlot::Top ||
01071 d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>() == QwtPlot::Bottom )
01072 {
01073 tl-><a class="code" href="class_qwt_dyn_grid_layout.html#a5">setMaxCols</a>(0); <span class="comment">// unlimited</span>
01074 }
01075 <span class="keywordflow">else</span>
01076 tl-><a class="code" href="class_qwt_dyn_grid_layout.html#a5">setMaxCols</a>(1); <span class="comment">// 1 column: align vertical</span>
01077 }
01078
01079 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
01080 <a class="code" href="class_qwt_plot.html#b4">updateTabOrder</a>();
01081 }
01082 }
01083
<a name="l01096"></a><a class="code" href="class_qwt_plot.html#a162">01096</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a161">QwtPlot::setLegendPosition</a>(QwtPlot::Position pos)
01097 {
01098 <a class="code" href="class_qwt_plot.html#a161">setLegendPosition</a>(pos, 0.0);
01099 }
01100
<a name="l01105"></a><a class="code" href="class_qwt_plot.html#a163">01105</a> <a class="code" href="class_qwt_plot.html#w10">QwtPlot::Position</a> <a class="code" href="class_qwt_plot.html#a163">QwtPlot::legendPosition</a>()<span class="keyword"> const</span>
01106 <span class="keyword"></span>{
01107 <span class="keywordflow">return</span> d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>();
01108 }
01109
01110 <span class="preprocessor">#ifndef QWT_NO_COMPAT</span>
01111 <span class="preprocessor"></span>
<a name="l01131"></a><a class="code" href="class_qwt_plot.html#a164">01131</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a164">QwtPlot::setLegendPos</a>(<span class="keywordtype">int</span> pos, <span class="keywordtype">double</span> ratio)
01132 {
01133 <a class="code" href="class_qwt_plot.html#a161">setLegendPosition</a>(<a class="code" href="class_qwt_plot.html#w10">QwtPlot::Position</a>(pos), ratio);
01134 }
01135
<a name="l01141"></a><a class="code" href="class_qwt_plot.html#a165">01141</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a165">QwtPlot::legendPos</a>()<span class="keyword"> const</span>
01142 <span class="keyword"></span>{
01143 <span class="keywordflow">return</span> d_layout-><a class="code" href="class_qwt_plot_layout.html#a12">legendPosition</a>();
01144 }
01145
01146 <span class="preprocessor">#endif // !QWT_NO_COMPAT</span>
01147 <span class="preprocessor"></span>
<a name="l01152"></a><a class="code" href="class_qwt_plot.html#a166">01152</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a166">QwtPlot::setLegendFont</a>(<span class="keyword">const</span> QFont &f)
01153 {
01154 d_legend->setFont(f);
01155 <span class="keywordflow">if</span> (d_legend->isVisible())
01156 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
01157 }
01158
<a name="l01163"></a><a class="code" href="class_qwt_plot.html#a168">01163</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a168">QwtPlot::setLegendFrameStyle</a>(<span class="keywordtype">int</span> st)
01164 {
01165 d_legend->setFrameStyle(st);
01166 <a class="code" href="class_qwt_plot.html#b6">updateLayout</a>();
01167 }
01168
<a name="l01172"></a><a class="code" href="class_qwt_plot.html#a169">01172</a> <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a169">QwtPlot::legendFrameStyle</a>()<span class="keyword"> const</span>
01173 <span class="keyword"></span>{
01174 <span class="keywordflow">return</span> d_legend->frameStyle();
01175 }
01176
<a name="l01180"></a><a class="code" href="class_qwt_plot.html#a167">01180</a> <span class="keyword">const</span> QFont <a class="code" href="class_qwt_plot.html#a167">QwtPlot::legendFont</a>()<span class="keyword"> const</span>
01181 <span class="keyword"></span>{
01182 <span class="keywordflow">return</span> d_legend->font();
01183 }
01184
<a name="l01191"></a><a class="code" href="class_qwt_plot.html#a172">01191</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a172">QwtPlot::setLegendDisplayPolicy</a>(
01192 QwtLegend::LegendDisplayPolicy policy, <span class="keywordtype">int</span> mode)
01193 {
01194 d_legend-><a class="code" href="class_qwt_legend.html#a3">setDisplayPolicy</a>(policy, mode);
01195
01196 <span class="keywordflow">for</span> (QwtPlotCurveIterator iter=<a class="code" href="class_qwt_plot.html#a37">curveIterator</a>(); iter.current(); ++iter)
01197 <a class="code" href="class_qwt_plot.html#b9">updateLegendItem</a>(iter.currentKey());
01198 }
01199
01200 <span class="comment">// Local Variables:</span>
01201 <span class="comment">// mode: C++</span>
01202 <span class="comment">// c-file-style: "stroustrup"</span>
01203 <span class="comment">// indent-tabs-mode: nil</span>
01204 <span class="comment">// End:</span>
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