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<title>Wt examples: TimeSeriesExample Class Reference</title>
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<div id="projectname">Wt examples
 <span id="projectnumber">3.2.3</span>
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<a href="#pub-methods">Public Member Functions</a> </div>
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<div class="title">TimeSeriesExample Class Reference<div class="ingroups"><a class="el" href="group__chartsexample.html">Charts example</a></div></div> </div>
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<!-- doxytag: class="TimeSeriesExample" --><!-- doxytag: inherits="Wt::WContainerWidget" -->
<p>A widget that demonstrates a times series chart.
<a href="classTimeSeriesExample.html#details">More...</a></p>
<p><code>#include <<a class="el" href="ChartsExample_8h_source.html">ChartsExample.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for TimeSeriesExample:</div>
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<div class="center"><img src="classTimeSeriesExample__inherit__graph.png" border="0" usemap="#TimeSeriesExample_inherit__map" alt="Inheritance graph"/></div>
<map name="TimeSeriesExample_inherit__map" id="TimeSeriesExample_inherit__map">
<area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html" title="Wt::WContainerWidget" alt="" coords="5,304,160,331"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WInteractWidget.html" title="Wt::WInteractWidget" alt="" coords="11,229,155,256"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html" title="Wt::WWebWidget" alt="" coords="19,155,147,181"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWidget.html" title="Wt::WWidget" alt="" coords="33,80,132,107"/><area shape="rect" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WObject.html" title="Wt::WObject" alt="" coords="35,5,131,32"/></map>
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<p><a href="classTimeSeriesExample-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classTimeSeriesExample.html#a696c3e952d1f9b4ed3bdbf415f1634a5">TimeSeriesExample</a> (<a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">Wt::WContainerWidget</a> *<a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWidget.html#a3461e31818c4d2f516641bdaf508312a">parent</a>)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates the time series scatter plot example. <a href="#a696c3e952d1f9b4ed3bdbf415f1634a5"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A widget that demonstrates a times series chart. </p>
<p>Definition at line <a class="el" href="ChartsExample_8h_source.html#l00029">29</a> of file <a class="el" href="ChartsExample_8h_source.html">ChartsExample.h</a>.</p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a696c3e952d1f9b4ed3bdbf415f1634a5"></a><!-- doxytag: member="TimeSeriesExample::TimeSeriesExample" ref="a696c3e952d1f9b4ed3bdbf415f1634a5" args="(Wt::WContainerWidget *parent)" -->
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<td class="memname">TimeSeriesExample::TimeSeriesExample </td>
<td>(</td>
<td class="paramtype"><a class="elRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">Wt::WContainerWidget</a> * </td>
<td class="paramname"><em>parent</em></td><td>)</td>
<td></td>
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<p>Creates the time series scatter plot example. </p>
<p>Definition at line <a class="el" href="ChartsExample_8C_source.html#l00163">163</a> of file <a class="el" href="ChartsExample_8C_source.html">ChartsExample.C</a>.</p>
<div class="fragment"><pre class="fragment"> :
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#a520ba6e52a36a7f2efbef1a31a69e898">WContainerWidget</a>(parent)
{
<span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WText.html">WText</a>(WString::tr(<span class="stringliteral">"scatter plot"</span>), <span class="keyword">this</span>);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html">WAbstractItemModel</a> *model = readCsvFile(
WApplication::appRoot() + <span class="stringliteral">"timeseries.csv"</span>, <span class="keyword">this</span>);
<span class="keywordflow">if</span> (!model)
<span class="keywordflow">return</span>;
<span class="comment">/*</span>
<span class="comment"> * Parses the first column as dates, to be able to use a date scale</span>
<span class="comment"> */</span>
<span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#ab0709a8f71fd5df882f29bb29fd055f0">rowCount</a>(); ++i) {
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WString.html">WString</a> s = <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/group__modelview.html#ga57b5cadd177847f51eaeb0cee23782c1">asString</a>(model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a9112b74d160f916ef75fb6c1c09dd8fe">data</a>(i, 0));
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WDate.html">WDate</a> d = WDate::fromString(s, <span class="stringliteral">"dd/MM/yy"</span>);
model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#a70856db8c322be8c7f397a932165a943">setData</a>(i, 0, d);
}
<span class="comment">// Show a view that allows editing of the model.</span>
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html">WContainerWidget</a> *w = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WContainerWidget.html#a520ba6e52a36a7f2efbef1a31a69e898">WContainerWidget</a>(<span class="keyword">this</span>);
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html">WTableView</a> *table = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html">WTableView</a>(w);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WCompositeWidget.html#addf49ace29b76331067c86bc4ae6ac38">setMargin</a>(10, Top | Bottom);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WCompositeWidget.html#addf49ace29b76331067c86bc4ae6ac38">setMargin</a>(WLength::Auto, Left | Right);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#a2e3629fbaee86da21c77c4583efb79ed">setModel</a>(model);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#ae1c86a0f37f97f63aed3b00fd8ffad7c">setSortingEnabled</a>(<span class="keyword">false</span>); <span class="comment">// Does not make much sense for time series</span>
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a4fe24c3ed80cc59f6bed2ed7795bc127">setColumnResizeEnabled</a>(<span class="keyword">true</span>);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#af6fcd9761e2f7a3b497d3563c849d320">setSelectionMode</a>(NoSelection);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#afbc128d312f1d5aa75c65352cb43e4ca">setAlternatingRowColors</a>(<span class="keyword">true</span>);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#aafd2a6edd366b620c71d9b3a89ed6590">setColumnAlignment</a>(0, AlignCenter);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a036e6a392c5e38470326d71157140d1a">setHeaderAlignment</a>(0, AlignCenter);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#ab17c45b65e38c22c0230062696c36e61">setRowHeight</a>(22);
<span class="comment">// Editing does not really work without Ajax, it would require an</span>
<span class="comment">// additional button somewhere to confirm the edited value.</span>
<span class="keywordflow">if</span> (WApplication::instance()->environment().ajax()) {
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#a921a3a6c489b584b261c6b7c7bf720d8">resize</a>(800, 20 + 5*22);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a93d2efc8642a6b9c55b35b7665a13da5">setEditTriggers</a>(WAbstractItemView::SingleClicked);
} <span class="keywordflow">else</span> {
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#a921a3a6c489b584b261c6b7c7bf720d8">resize</a>(800, 20 + 5*22 + 25);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a93d2efc8642a6b9c55b35b7665a13da5">setEditTriggers</a>(WAbstractItemView::NoEditTrigger);
}
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WItemDelegate.html">WItemDelegate</a> *delegate = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WItemDelegate.html">WItemDelegate</a>(<span class="keyword">this</span>);
delegate-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WItemDelegate.html#ad886d265dc00b95d9fb90c022a6322f9">setTextFormat</a>(<span class="stringliteral">"%.1f"</span>);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a2954ce5999e6ca683fef576777973496">setItemDelegate</a>(delegate);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a574bc36ec752012ba4a613e0e11e064e">setItemDelegateForColumn</a>(0, <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WItemDelegate.html">WItemDelegate</a>(<span class="keyword">this</span>));
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#af37d27044e96919e2fa6af4e25f3ef67">setColumnWidth</a>(0, 80);
<span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < model-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemModel.html#abcf7912a95a0a60f8e9b1c37d30b8383">columnCount</a>(); ++i)
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WTableView.html#af37d27044e96919e2fa6af4e25f3ef67">setColumnWidth</a>(i, 90);
<span class="comment">/*</span>
<span class="comment"> * Create the scatter plot.</span>
<span class="comment"> */</span>
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html">WCartesianChart</a> *chart = <span class="keyword">new</span> <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html">WCartesianChart</a>(<span class="keyword">this</span>);
<span class="comment">//chart->setPreferredMethod(WPaintedWidget::PngImage);</span>
<span class="comment">//chart->setBackground(gray);</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WAbstractChart.html#aa23d116689e939301470398df8ad5c8b">setModel</a>(model); <span class="comment">// set the model</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html#a6c954fa4ed6d73f00ee973bfe3af5ed0">setXSeriesColumn</a>(0); <span class="comment">// set the column that holds the X data</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html#a26c3d97f4884da079e01e7b50447a915">setLegendEnabled</a>(<span class="keyword">true</span>); <span class="comment">// enable the legend</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html#a02775290965d59ffba03da574925e387">setType</a>(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/group__charts.html#gga8d63464f873580c77508e1c0c26cbfeaa6ddab43d32242eb28831938a1e469a1f">ScatterPlot</a>); <span class="comment">// set type to ScatterPlot</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html#af966d6ee6b2e43e6b26e794459005375">axis</a>(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/group__charts.html#ggaddb678f67fbd9f374fcee0922f158c9fa2a592919e6cbd94bf09e1259559499b5">XAxis</a>).<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WAxis.html#ab067037b83d1d663535250968a1776d8">setScale</a>(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/group__charts.html#ggadfcaed8cd6ff52f5747f7df48f2eeab6aaa627030efa552170a889d7a80a65a12">DateScale</a>); <span class="comment">// set scale of X axis to DateScale</span>
<span class="comment">// Provide space for the X and Y axis and title. </span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WAbstractChart.html#ace6ea85014f731c7034e4215710a8a48">setPlotAreaPadding</a>(80, Left);
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WAbstractChart.html#ace6ea85014f731c7034e4215710a8a48">setPlotAreaPadding</a>(40, Top | Bottom);
<span class="comment">/*</span>
<span class="comment"> * Add first two columns as line series</span>
<span class="comment"> */</span>
<span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 1; i < 3; ++i) {
<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WDataSeries.html">WDataSeries</a> s(i, <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/group__charts.html#gga44d64e4a9d08c7ef69648f4a9c3e4053a2582c20d00d806d8a175e2f5c0207591">LineSeries</a>);
s.setShadow(<a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WShadow.html">WShadow</a>(3, 3, <a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WColor.html">WColor</a>(0, 0, 0, 127), 3));
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1Chart_1_1WCartesianChart.html#afa4ac6588e6e2e0dd93320c3a0541d46">addSeries</a>(s);
}
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WPaintedWidget.html#aa57b940110d240951d0e3a6d03390319">resize</a>(800, 400); <span class="comment">// WPaintedWidget must be given explicit size</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a9795c18e926b26b97fcbabc62a1dd4e3">setMargin</a>(10, Top | Bottom); <span class="comment">// add margin vertically</span>
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a9795c18e926b26b97fcbabc62a1dd4e3">setMargin</a>(WLength::Auto, Left | Right); <span class="comment">// center horizontally</span>
<span class="keyword">new</span> <a class="code" href="classChartConfig.html" title="A class that allows configuration of a cartesian chart.">ChartConfig</a>(chart, <span class="keyword">this</span>);
}
</pre></div>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li>/home/koen/project/wt/public-git/wt/examples/charts/<a class="el" href="ChartsExample_8h_source.html">ChartsExample.h</a></li>
<li>/home/koen/project/wt/public-git/wt/examples/charts/<a class="el" href="ChartsExample_8C_source.html">ChartsExample.C</a></li>
</ul>
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