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<h1>qwt_plot_print.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 <qpaintdevicemetrics.h></span>
00015 <span class="preprocessor">#include "qwt_painter.h"</span>
00016 <span class="preprocessor">#include "qwt_legend.h"</span>
00017 <span class="preprocessor">#include "qwt_plot.h"</span>
00018 <span class="preprocessor">#include "qwt_plot_layout.h"</span>
00019 <span class="preprocessor">#include "qwt_plot_dict.h"</span>
00020 <span class="preprocessor">#include "qwt_rect.h"</span>
00021 <span class="preprocessor">#include "qwt_dyngrid_layout.h"</span>
00022 <span class="preprocessor">#include "qwt_scale.h"</span>
00023 <span class="preprocessor">#include "qwt_text.h"</span>
00024 <span class="preprocessor">#include "<a class="code" href="qwt__math_8h.html">qwt_math.h</a>"</span>
00025
<a name="l00072"></a><a class="code" href="class_qwt_plot.html#a13">00072</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a13">QwtPlot::print</a>(QPaintDevice &paintDev,
00073 <span class="keyword">const</span> <a class="code" href="class_qwt_plot_print_filter.html">QwtPlotPrintFilter</a> &pfilter)<span class="keyword"> const</span>
00074 <span class="keyword"></span>{
00075 QPaintDeviceMetrics mpr(&paintDev);
00076
00077 QRect rect(0, 0, mpr.width(), mpr.height());
00078 <span class="keywordtype">double</span> aspect = double(rect.width())/double(rect.height());
00079 <span class="keywordflow">if</span> ((aspect < 1.0))
00080 rect.setHeight(<span class="keywordtype">int</span>(aspect*rect.width()));
00081
00082 QPainter p(&paintDev);
00083 <a class="code" href="class_qwt_plot.html#a13">print</a>(&p, rect, pfilter);
00084 }
00085
<a name="l00095"></a><a class="code" href="class_qwt_plot.html#a14">00095</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#a13">QwtPlot::print</a>(QPainter *painter, <span class="keyword">const</span> QRect &plotRect,
00096 <span class="keyword">const</span> <a class="code" href="class_qwt_plot_print_filter.html">QwtPlotPrintFilter</a> &pfilter)<span class="keyword"> const</span>
00097 <span class="keyword"></span>{
00098 <span class="keywordtype">int</span> <a class="code" href="class_qwt_plot.html#a109">axis</a>;
00099
00100 <span class="keywordflow">if</span> ( painter == 0 || !painter->isActive() ||
00101 !plotRect.isValid() || size().isNull() )
00102 <span class="keywordflow">return</span>;
00103
00104 painter->save();
00105
00106 <span class="comment">// All paint operations need to be scaled according to</span>
00107 <span class="comment">// the paint device metrics. </span>
00108
00109 <a class="code" href="class_qwt_painter.html#e0">QwtPainter::setMetricsMap</a>(<span class="keyword">this</span>, painter->device());
00110
00111 <span class="preprocessor">#if QT_VERSION < 300 </span>
00112 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( painter->device()->isExtDev() )
00113 {
00114 QPaintDeviceMetrics metrics(painter->device());
00115 <span class="keywordflow">if</span> ( metrics.logicalDpiX() == 72 && metrics.logicalDpiY() == 72 )
00116 {
00117 <span class="comment">// In Qt 2.x QPrinter returns hardcoded wrong metrics.</span>
00118 <span class="comment">// So scaling wont work: we reset to screen resolution</span>
00119
00120 <a class="code" href="class_qwt_painter.html#e0">QwtPainter::setMetricsMap</a>(<span class="keyword">this</span>, <span class="keyword">this</span>);
00121 }
00122 }
00123 <span class="preprocessor">#endif</span>
00124 <span class="preprocessor"></span>
00125 <span class="keyword">const</span> QwtMetricsMap &metricsMap = <a class="code" href="class_qwt_painter.html#e3">QwtPainter::metricsMap</a>();
00126
00127 <span class="comment">// It is almost impossible to integrate into the Qt layout</span>
00128 <span class="comment">// framework, when using different fonts for printing</span>
00129 <span class="comment">// and screen. To avoid writing different and Qt unconform</span>
00130 <span class="comment">// layout engines we change the widget attributes, print and </span>
00131 <span class="comment">// reset the widget attributes again. This way we produce a lot of</span>
00132 <span class="comment">// useless layout events ...</span>
00133
00134 pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a6">apply</a>((<a class="code" href="class_qwt_plot.html">QwtPlot</a> *)<span class="keyword">this</span>);
00135
00136 <span class="keywordtype">int</span> baseLineDists[QwtPlot::axisCnt];
00137 <span class="keywordflow">if</span> ( !(pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintCanvasBackground) )
00138 {
00139 <span class="comment">// In case of no background we set the backbone of</span>
00140 <span class="comment">// the scale on the frame of the canvas.</span>
00141
00142 <span class="keywordflow">for</span> (axis = 0; axis < QwtPlot::axisCnt; axis++ )
00143 {
00144 <span class="keywordflow">if</span> ( d_scale[axis] )
00145 {
00146 baseLineDists[axis] = d_scale[axis]-><a class="code" href="class_qwt_scale.html#a16">baseLineDist</a>();
00147 d_scale[axis]->setBaselineDist(0);
00148 }
00149 }
00150 }
00151 <span class="comment">// Calculate the layout for the print.</span>
00152
00153 <span class="keywordtype">int</span> layoutOptions = QwtPlotLayout::IgnoreScrollbars
00154 | QwtPlotLayout::IgnoreFrames | QwtPlotLayout::AlignScales;
00155 <span class="keywordflow">if</span> ( !(pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintMargin) )
00156 layoutOptions |= QwtPlotLayout::IgnoreMargin;
00157 <span class="keywordflow">if</span> ( !(pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintLegend) )
00158 layoutOptions |= QwtPlotLayout::IgnoreLegend;
00159
00160 d_layout-><a class="code" href="class_qwt_plot_layout.html#a18">activate</a>(<span class="keyword">this</span>, QwtPainter::metricsMap().deviceToLayout(plotRect),
00161 layoutOptions);
00162
00163 <span class="keywordflow">if</span> ((pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintTitle)
00164 && (!d_lblTitle->text().isEmpty()))
00165 {
00166 <a class="code" href="class_qwt_plot.html#b12">printTitle</a>(painter, d_layout-><a class="code" href="class_qwt_plot_layout.html#a20">titleRect</a>());
00167 }
00168
00169 <span class="keywordflow">if</span> ( (pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintLegend)
00170 && !d_legend-><a class="code" href="class_qwt_legend.html#a15">isEmpty</a>() )
00171 {
00172 <a class="code" href="class_qwt_plot.html#b15">printLegend</a>(painter, d_layout-><a class="code" href="class_qwt_plot_layout.html#a21">legendRect</a>());
00173 }
00174
00175 <span class="keywordflow">for</span> ( axis = 0; axis < QwtPlot::axisCnt; axis++ )
00176 {
00177 <span class="keywordflow">if</span> (d_scale[axis])
00178 {
00179 <span class="keywordtype">int</span> baseDist = d_scale[axis]-><a class="code" href="class_qwt_scale.html#a16">baseLineDist</a>();
00180
00181 <span class="keywordtype">int</span> startDist, endDist;
00182 d_scale[axis]->minBorderDist(startDist, endDist);
00183
00184 <a class="code" href="class_qwt_plot.html#b13">printScale</a>(painter, axis, startDist, endDist,
00185 baseDist, d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis));
00186 }
00187 }
00188
00189 <span class="keyword">const</span> QRect canvasRect = metricsMap.layoutToDevice(d_layout-><a class="code" href="class_qwt_plot_layout.html#a23">canvasRect</a>());
00190
00191 <span class="comment">// When using QwtPainter all sizes where computed in pixel</span>
00192 <span class="comment">// coordinates and scaled by QwtPainter later. This limits</span>
00193 <span class="comment">// the precision to screen resolution. A much better solution</span>
00194 <span class="comment">// is to scale the maps and print in unlimited resolution.</span>
00195
00196 QwtArray<QwtDiMap> map(axisCnt);
00197 <span class="keywordflow">for</span> (axis = 0; axis < axisCnt; axis++)
00198 {
00199 <span class="keyword">const</span> <a class="code" href="class_qwt_scale_div.html">QwtScaleDiv</a> &scaleDiv = d_as[axis].<a class="code" href="class_qwt_auto_scale.html#a20">scaleDiv</a>();
00200 map[axis].setDblRange(scaleDiv.<a class="code" href="class_qwt_scale_div.html#a3">lBound</a>(),
00201 scaleDiv.<a class="code" href="class_qwt_scale_div.html#a4">hBound</a>(), scaleDiv.<a class="code" href="class_qwt_scale_div.html#a7">logScale</a>());
00202
00203 <span class="keywordtype">double</span> from, to;
00204 <span class="keywordflow">if</span> ( <a class="code" href="class_qwt_plot.html#a97">axisEnabled</a>(axis) )
00205 {
00206 <span class="keyword">const</span> <span class="keywordtype">int</span> sDist = d_scale[axis]-><a class="code" href="class_qwt_scale.html#a12">startBorderDist</a>();
00207 <span class="keyword">const</span> <span class="keywordtype">int</span> eDist = d_scale[axis]->endBorderDist();
00208 <span class="keyword">const</span> QRect &scaleRect = d_layout-><a class="code" href="class_qwt_plot_layout.html#a22">scaleRect</a>(axis);
00209
00210 <span class="keywordflow">if</span> ( axis == xTop || axis == xBottom )
00211 {
00212 from = metricsMap.layoutToDeviceX(scaleRect.left() + sDist);
00213 to = metricsMap.layoutToDeviceX(scaleRect.right() - eDist);
00214 }
00215 <span class="keywordflow">else</span>
00216 {
00217 from = metricsMap.layoutToDeviceY(scaleRect.bottom() - sDist);
00218 to = metricsMap.layoutToDeviceY(scaleRect.top() + eDist);
00219 }
00220 }
00221 <span class="keywordflow">else</span>
00222 {
00223 <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);
00224
00225 <span class="keyword">const</span> QRect &canvasRect = <a class="code" href="class_qwt_plot.html#a21">plotLayout</a>()-><a class="code" href="class_qwt_plot_layout.html#a23">canvasRect</a>();
00226 <span class="keywordflow">if</span> ( axis == yLeft || axis == yRight )
00227 {
00228 from = metricsMap.layoutToDeviceX(canvasRect.bottom() - margin);
00229 to = metricsMap.layoutToDeviceX(canvasRect.top() + margin);
00230 }
00231 <span class="keywordflow">else</span>
00232 {
00233 from = metricsMap.layoutToDeviceY(canvasRect.left() + margin);
00234 to = metricsMap.layoutToDeviceY(canvasRect.right() - margin);
00235 }
00236 }
00237 map[axis].setIntRange( qwtInt(from), qwtInt(to));
00238 }
00239
00240
00241 <span class="comment">// The maps are already scaled. </span>
00242 <a class="code" href="class_qwt_painter.html#e0">QwtPainter::setMetricsMap</a>(painter->device(), painter->device());
00243
00244 <a class="code" href="class_qwt_plot.html#b14">printCanvas</a>(painter, canvasRect, map, pfilter);
00245
00246 <a class="code" href="class_qwt_painter.html#e2">QwtPainter::resetMetricsMap</a>();
00247
00248 d_layout-><a class="code" href="class_qwt_plot_layout.html#a19">invalidate</a>();
00249
00250 <span class="comment">// reset all widgets with their original attributes.</span>
00251 <span class="keywordflow">if</span> ( !(pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintCanvasBackground) )
00252 {
00253 <span class="comment">// restore the previous base line dists</span>
00254
00255 <span class="keywordflow">for</span> (axis = 0; axis < QwtPlot::axisCnt; axis++ )
00256 {
00257 <span class="keywordflow">if</span> ( d_scale[axis] )
00258 d_scale[axis]-><a class="code" href="class_qwt_scale.html#a15">setBaselineDist</a>(baseLineDists[axis]);
00259 }
00260 }
00261
00262 pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a7">reset</a>((<a class="code" href="class_qwt_plot.html">QwtPlot</a> *)<span class="keyword">this</span>);
00263
00264 painter->restore();
00265 }
00266
<a name="l00274"></a><a class="code" href="class_qwt_plot.html#b12">00274</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b12">QwtPlot::printTitle</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
00275 <span class="keyword"></span>{
00276 <a class="code" href="class_qwt_text.html">QwtText</a> *text = <a class="code" href="class_qwt_text.html#e0">QwtText::makeText</a>(
00277 d_lblTitle->text(), d_lblTitle->textFormat(),
00278 d_lblTitle->alignment(), d_lblTitle->font(),
00279 d_lblTitle->palette().color(
00280 QPalette::Active, QColorGroup::Foreground));
00281
00282 text-><a class="code" href="class_qwt_text.html#a18">draw</a>(painter, rect);
00283 <span class="keyword">delete</span> text;
00284 }
00285
<a name="l00293"></a><a class="code" href="class_qwt_plot.html#b15">00293</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b15">QwtPlot::printLegend</a>(QPainter *painter, <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
00294 <span class="keyword"></span>{
00295 <span class="keywordflow">if</span> ( !d_legend || d_legend-><a class="code" href="class_qwt_legend.html#a15">isEmpty</a>() )
00296 <span class="keywordflow">return</span>;
00297
00298 QLayout *l = d_legend-><a class="code" href="class_qwt_legend.html#a6">contentsWidget</a>()->layout();
00299 <span class="keywordflow">if</span> ( l == 0 || !l->inherits(<span class="stringliteral">"QwtDynGridLayout"</span>) )
00300 <span class="keywordflow">return</span>;
00301
00302 <a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *legendLayout = (<a class="code" href="class_qwt_dyn_grid_layout.html">QwtDynGridLayout</a> *)l;
00303
00304 uint numCols = legendLayout-><a class="code" href="class_qwt_dyn_grid_layout.html#a20">columnsForWidth</a>(rect.width());
00305 QValueList<QRect> itemRects =
00306 legendLayout-><a class="code" href="class_qwt_dyn_grid_layout.html#a21">layoutItems</a>(rect, numCols);
00307
00308 <span class="keywordtype">int</span> index = 0;
00309
00310 QLayoutIterator layoutIterator = legendLayout-><a class="code" href="class_qwt_dyn_grid_layout.html#a10">iterator</a>();
00311 <span class="keywordflow">for</span> ( QLayoutItem *item = layoutIterator.current();
00312 item != 0; item = ++layoutIterator)
00313 {
00314 QWidget *w = item->widget();
00315 <span class="keywordflow">if</span> ( w )
00316 {
00317 painter->save();
00318 painter->setClipping(TRUE);
00319 <a class="code" href="class_qwt_painter.html#e6">QwtPainter::setClipRect</a>(painter, itemRects[index]);
00320
00321 <a class="code" href="class_qwt_plot.html#b10">printLegendItem</a>(painter, w, itemRects[index]);
00322
00323 index++;
00324 painter->restore();
00325 }
00326 }
00327 }
00328
<a name="l00337"></a><a class="code" href="class_qwt_plot.html#b10">00337</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b10">QwtPlot::printLegendItem</a>(QPainter *painter,
00338 <span class="keyword">const</span> QWidget *w, <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
00339 <span class="keyword"></span>{
00340 <span class="keyword">const</span> <a class="code" href="class_qwt_legend_item.html">QwtLegendItem</a> *item = NULL;
00341
00342 <span class="keywordflow">if</span> ( w->inherits(<span class="stringliteral">"QwtLegendButton"</span>) )
00343 item = (<a class="code" href="class_qwt_legend_button.html">QwtLegendButton</a> *)w;
00344
00345 <span class="keywordflow">if</span> ( w->inherits(<span class="stringliteral">"QwtLegendLabel"</span>) )
00346 item = (<a class="code" href="class_qwt_legend_label.html">QwtLegendLabel</a> *)w;
00347
00348 <span class="keywordflow">if</span> ( item )
00349 {
00350 painter->setFont(w->font());
00351 item-><a class="code" href="class_qwt_legend_item.html#a10">drawItem</a>(painter, rect);
00352 }
00353 }
00354
<a name="l00367"></a><a class="code" href="class_qwt_plot.html#b13">00367</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b13">QwtPlot::printScale</a>(QPainter *painter,
00368 <span class="keywordtype">int</span> axis, <span class="keywordtype">int</span> startDist, <span class="keywordtype">int</span> endDist, <span class="keywordtype">int</span> baseDist,
00369 <span class="keyword">const</span> QRect &rect)<span class="keyword"> const</span>
00370 <span class="keyword"></span>{
00371 <span class="keywordflow">if</span> (!d_axisEnabled[axis])
00372 <span class="keywordflow">return</span>;
00373
00374 QwtScaleDraw::Orientation o;
00375 <span class="keywordtype">int</span> x, y, w;
00376
00377 <span class="keywordflow">switch</span>(axis)
00378 {
00379 <span class="keywordflow">case</span> yLeft:
00380 {
00381 x = rect.right() - baseDist;
00382 y = rect.y() + startDist;
00383 w = rect.height() - startDist - endDist;
00384 o = QwtScaleDraw::Left;
00385 <span class="keywordflow">break</span>;
00386 }
00387 <span class="keywordflow">case</span> yRight:
00388 {
00389 x = rect.left() + baseDist;
00390 y = rect.y() + startDist;
00391 w = rect.height() - startDist - endDist;
00392 o = QwtScaleDraw::Right;
00393 <span class="keywordflow">break</span>;
00394 }
00395 <span class="keywordflow">case</span> xTop:
00396 {
00397 x = rect.left() + startDist;
00398 y = rect.bottom() - baseDist;
00399 w = rect.width() - startDist - endDist;
00400 o = QwtScaleDraw::Top;
00401 <span class="keywordflow">break</span>;
00402 }
00403 <span class="keywordflow">case</span> xBottom:
00404 {
00405 x = rect.left() + startDist;
00406 y = rect.top() + baseDist;
00407 w = rect.width() - startDist - endDist;
00408 o = QwtScaleDraw::Bottom;
00409 <span class="keywordflow">break</span>;
00410 }
00411 <span class="keywordflow">default</span>:
00412 <span class="keywordflow">return</span>;
00413 }
00414
00415 <span class="keyword">const</span> <a class="code" href="class_qwt_scale.html">QwtScale</a> *scale = d_scale[axis];
00416 scale-><a class="code" href="class_qwt_scale.html#a31">drawTitle</a>(painter, o, rect);
00417
00418 painter->save();
00419 QPen pen(painter->pen());
00420 pen.setColor(
00421 scale->palette().color(QPalette::Active, QColorGroup::Foreground));
00422 painter->setPen(pen);
00423 painter->setFont(scale->font());
00424
00425 <a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a> *sd = (<a class="code" href="class_qwt_scale_draw.html">QwtScaleDraw</a> *)scale-><a class="code" href="class_qwt_scale.html#a21">scaleDraw</a>();
00426 <span class="keywordtype">int</span> xSd = sd-><a class="code" href="class_qwt_scale_draw.html#a7">x</a>();
00427 <span class="keywordtype">int</span> ySd = sd-><a class="code" href="class_qwt_scale_draw.html#a8">y</a>();
00428 <span class="keywordtype">int</span> lengthSd = sd-><a class="code" href="class_qwt_scale_draw.html#a9">length</a>();
00429
00430 sd-><a class="code" href="class_qwt_scale_draw.html#a6">setGeometry</a>(x, y, w, o);
00431 sd-><a class="code" href="class_qwt_scale_draw.html#a29">draw</a>(painter);
00432 sd-><a class="code" href="class_qwt_scale_draw.html#a6">setGeometry</a>(xSd, ySd, lengthSd, o); <span class="comment">// reset previous values</span>
00433 painter->restore();
00434 }
00435
<a name="l00446"></a><a class="code" href="class_qwt_plot.html#b14">00446</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_plot.html#b14">QwtPlot::printCanvas</a>(QPainter *painter, <span class="keyword">const</span> QRect &canvasRect,
00447 <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>
00448 <span class="keyword"></span>{
00449 <span class="keywordflow">if</span> ( pfilter.<a class="code" href="class_qwt_plot_print_filter.html#a5">options</a>() & QwtPlotPrintFilter::PrintCanvasBackground )
00450 {
00451 <a class="code" href="class_qwt_painter.html#e14">QwtPainter::fillRect</a>(painter, QRect(canvasRect.x(), canvasRect.y(),
00452 canvasRect.width() - 1, canvasRect.height() - 1),
00453 <a class="code" href="class_qwt_plot.html#a34">canvasBackground</a>());
00454 }
00455 <span class="keywordflow">else</span>
00456 <a class="code" href="class_qwt_painter.html#e12">QwtPainter::drawRect</a>(painter, canvasRect.x() - 1, canvasRect.y() - 1,
00457 canvasRect.width() + 1, canvasRect.height() + 1);
00458
00459 painter->setClipping(TRUE);
00460 <a class="code" href="class_qwt_painter.html#e6">QwtPainter::setClipRect</a>(painter, canvasRect);
00461
00462 <a class="code" href="class_qwt_plot.html#b2">drawCanvasItems</a>(painter, canvasRect, map, pfilter);
00463 }
00464
00465 <span class="comment">// Local Variables:</span>
00466 <span class="comment">// mode: C++</span>
00467 <span class="comment">// c-file-style: "stroustrup"</span>
00468 <span class="comment">// indent-tabs-mode: nil</span>
00469 <span class="comment">// End:</span>
</div></pre><hr size="1"><address style="align: right;"><small>Generated on Tue Nov 16 21:12:21 2004 for Qwt User's Guide by
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