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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Wt examples: CategoryExample Class Reference</title>
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<div id="projectname">Wt examples
 <span id="projectnumber">3.2.1</span>
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<a href="#pub-methods">Public Member Functions</a> </div>
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<div class="title">CategoryExample Class Reference<div class="ingroups"><a class="el" href="group__chartsexample.html">Charts example</a></div></div> </div>
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<!-- doxytag: class="CategoryExample" --><!-- doxytag: inherits="Wt::WContainerWidget" -->
<p>A Widget that demonstrates a category chart.
<a href="classCategoryExample.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 CategoryExample:</div>
<div class="dyncontent">
<div class="center"><img src="classCategoryExample__inherit__graph.png" border="0" usemap="#CategoryExample_inherit__map" alt="Inheritance graph"/></div>
<map name="CategoryExample_inherit__map" id="CategoryExample_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>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classCategoryExample-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="classCategoryExample.html#ad1918a1ab288d28676e215be15919769">CategoryExample</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 category chart example. <a href="#ad1918a1ab288d28676e215be15919769"></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 category chart. </p>
<p>Definition at line <a class="el" href="ChartsExample_8h_source.html#l00039">39</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="ad1918a1ab288d28676e215be15919769"></a><!-- doxytag: member="CategoryExample::CategoryExample" ref="ad1918a1ab288d28676e215be15919769" args="(Wt::WContainerWidget *parent)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">CategoryExample::CategoryExample </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>
</tr>
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</div>
<div class="memdoc">
<p>Creates the category chart example. </p>
<p>Definition at line <a class="el" href="ChartsExample_8C_source.html#l00083">83</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">"category chart"</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">"category.csv"</span>, <span class="keyword">this</span>);
<span class="keywordflow">if</span> (!model)
<span class="keywordflow">return</span>;
<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">true</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>);
<span class="comment">// table->setSelectionMode(ExtendedSelection);</span>
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>(600, 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>(600, WLength::Auto);
table-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WAbstractItemView.html#a93d2efc8642a6b9c55b35b7665a13da5">setEditTriggers</a>(WAbstractItemView::NoEditTrigger);
}
<span class="comment">// We use a single delegate for all items which rounds values to</span>
<span class="comment">// the closest integer value.</span>
<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">"%.f"</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_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, 120);
<span class="comment">/*</span>
<span class="comment"> * Create the category chart.</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>
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 categories</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>
<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 all (but first) column as bar series</span>
<span class="comment"> */</span>
<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) {
<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#gga44d64e4a9d08c7ef69648f4a9c3e4053a6751dbd7ed4600a4befa967107a6dde8">BarSeries</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);
chart-><a class="codeRef" doxygen="wt.tags:../../reference/html" href="../../reference/html/classWt_1_1WWebWidget.html#a9795c18e926b26b97fcbabc62a1dd4e3">setMargin</a>(10, Top | Bottom);
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">/*</span>
<span class="comment"> * Provide a widget to manipulate chart properties</span>
<span class="comment"> */</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>
</div>
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