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<div class="title">Wt::Chart::WPieChart Class Reference<div class="ingroups"><a class="el" href="group__charts.html">Charts (Wt::Chart)</a> | <a class="el" href="group__modelview.html">Model/view system</a></div></div> </div>
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<!-- doxytag: class="Wt::Chart::WPieChart" --><!-- doxytag: inherits="Wt::Chart::WAbstractChart" -->
<p>A pie chart.
<a href="classWt_1_1Chart_1_1WPieChart.html#details">More...</a></p>
<p><code>#include <Wt/Chart/WPieChart></code></p>
<div class="dynheader">
Inheritance diagram for Wt::Chart::WPieChart:</div>
<div class="dyncontent">
<div class="center"><img src="classWt_1_1Chart_1_1WPieChart__inherit__graph.png" border="0" usemap="#Wt_1_1Chart_1_1WPieChart_inherit__map" alt="Inheritance graph"/></div>
<map name="Wt_1_1Chart_1_1WPieChart_inherit__map" id="Wt_1_1Chart_1_1WPieChart_inherit__map">
<area shape="rect" href="classWt_1_1Chart_1_1WAbstractChart.html" title="Abstract base class for MVC-based charts." alt="" coords="5,379,184,405"/><area shape="rect" href="classWt_1_1WPaintedWidget.html" title="A widget that is painted using vector graphics." alt="" coords="23,304,167,331"/><area shape="rect" href="classWt_1_1WInteractWidget.html" title="An abstract widget that can receive user-interface interaction." alt="" coords="23,229,167,256"/><area shape="rect" href="classWt_1_1WWebWidget.html" title="A base class for widgets with an HTML counterpart." alt="" coords="31,155,159,181"/><area shape="rect" href="classWt_1_1WWidget.html" title="The abstract base class for a user-interface component." alt="" coords="45,80,144,107"/><area shape="rect" href="classWt_1_1WObject.html" title="A base class for objects that participate in the signal/slot system." alt="" coords="47,5,143,32"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classWt_1_1Chart_1_1WPieChart-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"><a class="anchor" id="afec3ff85d3997e588acadbc2b844943a"></a><!-- doxytag: member="Wt::Chart::WPieChart::WPieChart" ref="afec3ff85d3997e588acadbc2b844943a" args="(WContainerWidget *parent=0)" -->
 </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#afec3ff85d3997e588acadbc2b844943a">WPieChart</a> (<a class="el" href="classWt_1_1WContainerWidget.html">WContainerWidget</a> *parent=0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a new pie chart. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa40bfd3f2095106f8081596b235de4c6">setLabelsColumn</a> (int column)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the model column that holds the labels. <a href="#aa40bfd3f2095106f8081596b235de4c6"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a9029c0a18c84558da2b36089dfb7fa3d">labelsColumn</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the model column used for the labels. <a href="#a9029c0a18c84558da2b36089dfb7fa3d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a3692ea22a1417e599e9358b0ed5a723d">setDataColumn</a> (int modelColumn)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the model column that holds the data. <a href="#a3692ea22a1417e599e9358b0ed5a723d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a5d88b01950313351cfb38821d8c8bc2c">dataColumn</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the model column used for the data. <a href="#a5d88b01950313351cfb38821d8c8bc2c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#af0fc06d47e2b717f1faeae80926d068c">setBrush</a> (int modelRow, const <a class="el" href="classWt_1_1WBrush.html">WBrush</a> &brush)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Customizes the brush used for a pie segment. <a href="#af0fc06d47e2b717f1faeae80926d068c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WBrush.html">WBrush</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a6063464c0a664943d747b344e8383b5c">brush</a> (int modelRow) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the brush used for a pie segment. <a href="#a6063464c0a664943d747b344e8383b5c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a4a2bfe0c147b5433d340d49351b5032c">setExplode</a> (int modelRow, double factor)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the explosion factor for a pie segment. <a href="#a4a2bfe0c147b5433d340d49351b5032c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ae4873101c6d49b858e665f88182b0361">explode</a> (int modelRow) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the explosion factor for a segment. <a href="#ae4873101c6d49b858e665f88182b0361"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ae36d57f4c2801cb8599a1bc99e340a24">setPerspectiveEnabled</a> (bool enabled, double height=1.0)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Enables a 3D perspective effect on the pie. <a href="#ae36d57f4c2801cb8599a1bc99e340a24"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a448d52119f7422ec0893261980e7e880">isPerspectiveEnabled</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether a 3D effect is enabled. <a href="#a448d52119f7422ec0893261980e7e880"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a74b91c0514247ba9ea91b53fbae795f7">setShadowEnabled</a> (bool enabled)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Enables a shadow effect. <a href="#a74b91c0514247ba9ea91b53fbae795f7"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a1738f01efbd4c3b34956d2e42096580f">isShadowEnabled</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns whether a shadow effect is enabled. <a href="#a1738f01efbd4c3b34956d2e42096580f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a407707a2ab0b2c56500e35da85e619a5">setStartAngle</a> (double degrees)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the angle of the first segment. <a href="#a407707a2ab0b2c56500e35da85e619a5"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#af2d62e836a60f28755218921fc0e4b90">startAngle</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the angle of the first segment. <a href="#af2d62e836a60f28755218921fc0e4b90"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa573182ef1ba641315f3d2bf5899784f">setAvoidLabelRendering</a> (double percent)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Sets the percentage value to avoid rendering of label texts. <a href="#aa573182ef1ba641315f3d2bf5899784f"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#af304b94ab8892fd17d0af98259a709af">avoidLabelRendering</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the percentage to avoid label rendering. <a href="#af304b94ab8892fd17d0af98259a709af"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a89324f6159e5893e1ddd368718d00e5d">setDisplayLabels</a> (WFlags< <a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a> > options)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Configures if and how labels should be displayed. <a href="#a89324f6159e5893e1ddd368718d00e5d"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">WFlags< <a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a> > </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a448e016c20ffc0c15d707cf69081f5d4">displayLabels</a> () const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns options set for displaying labels. <a href="#a448e016c20ffc0c15d707cf69081f5d4"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ac4e58ff2d6c698bfa4a52f6347dff654">createLegendItemWidget</a> (int index, WFlags< <a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a> > options)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Creates a widget which renders the a legend item. <a href="#ac4e58ff2d6c698bfa4a52f6347dff654"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a566d64a04ee31771c99e399c4cf15c4e">addDataPointArea</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &index, <a class="el" href="classWt_1_1WAbstractArea.html">WAbstractArea</a> *area) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Adds a data point area (used for displaying e.g. tooltips). <a href="#a566d64a04ee31771c99e399c4cf15c4e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a3929b0fc7d0b71f06809207b3d34df08">paint</a> (<a class="el" href="classWt_1_1WPainter.html">WPainter</a> &painter, const <a class="el" href="classWt_1_1WRectF.html">WRectF</a> &rectangle=<a class="el" href="classWt_1_1WRectF.html">WRectF</a>()) const </td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Paint the chart in a rectangle of the given painter. <a href="#a3929b0fc7d0b71f06809207b3d34df08"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ab1653eea26f873b295a7350bd0dbb9ac">paintEvent</a> (<a class="el" href="classWt_1_1WPaintDevice.html">Wt::WPaintDevice</a> *paintDevice)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Paints the widget. <a href="#ab1653eea26f873b295a7350bd0dbb9ac"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pri-methods"></a>
Private Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a9d29685403eb2948a01acbda7787ad5c">modelChanged</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called whenever the entire model was changed. <a href="#a9d29685403eb2948a01acbda7787ad5c"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a171e964386bbb9db15d0eba58ce57b68">modelReset</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called whenever the entire model was reset. <a href="#a171e964386bbb9db15d0eba58ce57b68"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a2e84917071b1a77361375713e424c2d8">modelColumnsInserted</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent, int start, int end)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called when colums have been inserted in the model. <a href="#a2e84917071b1a77361375713e424c2d8"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a8c7417d6962e60c3d18da332a67149ba">modelColumnsRemoved</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent, int start, int end)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called when colums have been removed from the model. <a href="#a8c7417d6962e60c3d18da332a67149ba"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a7d189d82d85c24be23bac4d8ab21223a">modelRowsInserted</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent, int start, int end)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called when rows have been inserted from the model. <a href="#a7d189d82d85c24be23bac4d8ab21223a"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a8c9668712e4b19567a3959227ae0f8ae">modelRowsRemoved</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &parent, int start, int end)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called when rows have been removed from the model. <a href="#a8c9668712e4b19567a3959227ae0f8ae"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#abf017e24778b35d2e5d4d1054147ed8b">modelDataChanged</a> (const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &topLeft, const <a class="el" href="classWt_1_1WModelIndex.html">WModelIndex</a> &bottomRight)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Method called when data has been changed in the model. <a href="#abf017e24778b35d2e5d4d1054147ed8b"></a><br/></td></tr>
</table>
<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A pie chart. </p>
<p>A pie chart renders a single data series as segments of a circle, so that the area of each segment is proportional to the value in the data series.</p>
<p>To use a pie chart, you need to set a model using <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#aa23d116689e939301470398df8ad5c8b" title="Set the model.">setModel()</a>, and use <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa40bfd3f2095106f8081596b235de4c6" title="Sets the model column that holds the labels.">setLabelsColumn()</a> and <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a3692ea22a1417e599e9358b0ed5a723d" title="Sets the model column that holds the data.">setDataColumn()</a> to specify the model column that contains the category labels and data.</p>
<p>The pie chart may be customized visually by enabling a 3D effect (<a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ae36d57f4c2801cb8599a1bc99e340a24" title="Enables a 3D perspective effect on the pie.">setPerspectiveEnabled()</a>), or by specifying the angle of the first segment. One or more segments may be exploded, which seperates the segment from the rest of the pie chart, using <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a4a2bfe0c147b5433d340d49351b5032c" title="Sets the explosion factor for a pie segment.">setExplode()</a>.</p>
<p>The segments may be labeled in various ways using <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a89324f6159e5893e1ddd368718d00e5d" title="Configures if and how labels should be displayed.">setDisplayLabels()</a>.</p>
<h3>CSS</h3>
<p>Styling through CSS is not applicable.</p>
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<img src="ChartWPieChart-1.png" alt="ChartWPieChart-1.png"/>
<div class="caption">
Example of a pie chart</div></div>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WCartesianChart.html" title="A cartesian chart.">WCartesianChart</a> </dd></dl>
</div><hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a566d64a04ee31771c99e399c4cf15c4e"></a><!-- doxytag: member="Wt::Chart::WPieChart::addDataPointArea" ref="a566d64a04ee31771c99e399c4cf15c4e" args="(const WModelIndex &index, WAbstractArea *area) const " -->
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<td class="memname">void Wt::Chart::WPieChart::addDataPointArea </td>
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<td class="paramtype"><a class="el" href="classWt_1_1WAbstractArea.html">WAbstractArea</a> * </td>
<td class="paramname"><em>area</em> </td>
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<p>Adds a data point area (used for displaying e.g. tooltips). </p>
<p>You may want to specialize this is if you wish to modify (or delete) the area.</p>
<dl class="note"><dt><b>Note:</b></dt><dd>Currently, an area is only created if the ToolTipRole data at the data point is not empty. </dd></dl>
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<a class="anchor" id="af304b94ab8892fd17d0af98259a709af"></a><!-- doxytag: member="Wt::Chart::WPieChart::avoidLabelRendering" ref="af304b94ab8892fd17d0af98259a709af" args="() const " -->
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<td class="memname">double Wt::Chart::WPieChart::avoidLabelRendering </td>
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<p>Returns the percentage to avoid label rendering. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa573182ef1ba641315f3d2bf5899784f" title="Sets the percentage value to avoid rendering of label texts.">setAvoidLabelRendering(double)</a> </dd></dl>
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<a class="anchor" id="a6063464c0a664943d747b344e8383b5c"></a><!-- doxytag: member="Wt::Chart::WPieChart::brush" ref="a6063464c0a664943d747b344e8383b5c" args="(int modelRow) const " -->
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<td class="memname"><a class="el" href="classWt_1_1WBrush.html">WBrush</a> Wt::Chart::WPieChart::brush </td>
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<p>Returns the brush used for a pie segment. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#af0fc06d47e2b717f1faeae80926d068c" title="Customizes the brush used for a pie segment.">setBrush(int, const WBrush&)</a> </dd></dl>
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<a class="anchor" id="ac4e58ff2d6c698bfa4a52f6347dff654"></a><!-- doxytag: member="Wt::Chart::WPieChart::createLegendItemWidget" ref="ac4e58ff2d6c698bfa4a52f6347dff654" args="(int index, WFlags< LabelOption > options)" -->
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<td class="memname"><a class="el" href="classWt_1_1WWidget.html">WWidget</a> * Wt::Chart::WPieChart::createLegendItemWidget </td>
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<td class="paramtype">WFlags< <a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a> > </td>
<td class="paramname"><em>options</em> </td>
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<p>Creates a widget which renders the a legend item. </p>
<p>Depending on the passed LabelOption flags, the legend item widget, will contain a text (with or without the percentage) and/or a span with the segment's color. </p>
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<a class="anchor" id="a5d88b01950313351cfb38821d8c8bc2c"></a><!-- doxytag: member="Wt::Chart::WPieChart::dataColumn" ref="a5d88b01950313351cfb38821d8c8bc2c" args="() const " -->
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<td class="memname">int Wt::Chart::WPieChart::dataColumn </td>
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<p>Returns the model column used for the data. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a3692ea22a1417e599e9358b0ed5a723d" title="Sets the model column that holds the data.">setDataColumn(int)</a> </dd></dl>
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<a class="anchor" id="a448e016c20ffc0c15d707cf69081f5d4"></a><!-- doxytag: member="Wt::Chart::WPieChart::displayLabels" ref="a448e016c20ffc0c15d707cf69081f5d4" args="() const " -->
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<td class="memname">WFlags<<a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a>> Wt::Chart::WPieChart::displayLabels </td>
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<p>Returns options set for displaying labels. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a89324f6159e5893e1ddd368718d00e5d" title="Configures if and how labels should be displayed.">WPieChart::setDisplayLabels()</a> </dd></dl>
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<a class="anchor" id="ae4873101c6d49b858e665f88182b0361"></a><!-- doxytag: member="Wt::Chart::WPieChart::explode" ref="ae4873101c6d49b858e665f88182b0361" args="(int modelRow) const " -->
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<td class="memname">double Wt::Chart::WPieChart::explode </td>
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<p>Returns the explosion factor for a segment. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a4a2bfe0c147b5433d340d49351b5032c" title="Sets the explosion factor for a pie segment.">setExplode(int, double)</a> </dd></dl>
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<a class="anchor" id="a448d52119f7422ec0893261980e7e880"></a><!-- doxytag: member="Wt::Chart::WPieChart::isPerspectiveEnabled" ref="a448d52119f7422ec0893261980e7e880" args="() const " -->
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<td class="memname">bool Wt::Chart::WPieChart::isPerspectiveEnabled </td>
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<p>Returns whether a 3D effect is enabled. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#ae36d57f4c2801cb8599a1bc99e340a24" title="Enables a 3D perspective effect on the pie.">setPerspectiveEnabled(bool, double)</a> </dd></dl>
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<a class="anchor" id="a1738f01efbd4c3b34956d2e42096580f"></a><!-- doxytag: member="Wt::Chart::WPieChart::isShadowEnabled" ref="a1738f01efbd4c3b34956d2e42096580f" args="() const " -->
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<td class="memname">bool Wt::Chart::WPieChart::isShadowEnabled </td>
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<p>Returns whether a shadow effect is enabled. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a74b91c0514247ba9ea91b53fbae795f7" title="Enables a shadow effect.">setShadowEnabled()</a> </dd></dl>
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<a class="anchor" id="a9029c0a18c84558da2b36089dfb7fa3d"></a><!-- doxytag: member="Wt::Chart::WPieChart::labelsColumn" ref="a9029c0a18c84558da2b36089dfb7fa3d" args="() const " -->
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<td class="memname">int Wt::Chart::WPieChart::labelsColumn </td>
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<p>Returns the model column used for the labels. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa40bfd3f2095106f8081596b235de4c6" title="Sets the model column that holds the labels.">setLabelsColumn(int)</a> </dd></dl>
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<a class="anchor" id="a9d29685403eb2948a01acbda7787ad5c"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelChanged" ref="a9d29685403eb2948a01acbda7787ad5c" args="()" -->
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<td class="memname">void Wt::Chart::WPieChart::modelChanged </td>
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<p>Method called whenever the entire model was changed. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#aa23d116689e939301470398df8ad5c8b" title="Set the model.">setModel(WAbstractItemModel *)</a> </dd></dl>
<p>Reimplemented from <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a9e3df17843eedb5f32dc1407f115fca4">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a2e84917071b1a77361375713e424c2d8"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelColumnsInserted" ref="a2e84917071b1a77361375713e424c2d8" args="(const WModelIndex &parent, int start, int end)" -->
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<td class="memname">void Wt::Chart::WPieChart::modelColumnsInserted </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>end</em> </td>
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<p>Method called when colums have been inserted in the model. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#ac56221d07f5ef246f10dccc93756cb3c" title="Signal emitted after a number of columns were inserted.">WAbstractItemModel::columnsInserted</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a12430c6057fb5d65458c4f8c9c42a034">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a8c7417d6962e60c3d18da332a67149ba"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelColumnsRemoved" ref="a8c7417d6962e60c3d18da332a67149ba" args="(const WModelIndex &parent, int start, int end)" -->
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<td class="memname">void Wt::Chart::WPieChart::modelColumnsRemoved </td>
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<td class="paramname"><em>end</em> </td>
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<p>Method called when colums have been removed from the model. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#a2aecbfc4363903aed6d3ce4d176c82d0" title="Signal emitted after a number of columns were removed.">WAbstractItemModel::columnsRemoved</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#ad235f839f2e46152ff41fda54a29cea7">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="abf017e24778b35d2e5d4d1054147ed8b"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelDataChanged" ref="abf017e24778b35d2e5d4d1054147ed8b" args="(const WModelIndex &topLeft, const WModelIndex &bottomRight)" -->
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<td class="memname">void Wt::Chart::WPieChart::modelDataChanged </td>
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<td class="paramname"><em>bottomRight</em> </td>
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<p>Method called when data has been changed in the model. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#aa074e5bc55394252a609ef17d071b563" title="Signal emitted when some data was changed.">WAbstractItemModel::dataChanged</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#aec6e96688e308aec05cdf3bf085837e2">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a171e964386bbb9db15d0eba58ce57b68"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelReset" ref="a171e964386bbb9db15d0eba58ce57b68" args="()" -->
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<td class="memname">void Wt::Chart::WPieChart::modelReset </td>
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<p>Method called whenever the entire model was reset. </p>
<p>Bound to the <a class="el" href="classWt_1_1WAbstractItemModel.html#ae28a4ba2ce1dd93e7479dfa152a65efc" title="Signal emitted when the model was reset.">WAbstractItemModel::modelReset()</a> and <a class="el" href="classWt_1_1WAbstractItemModel.html#afe7cb1d5186881f83aa8f0e452aaef66" title="Signal emitted when the layout is changed.">WAbstractItemModel::layoutChanged()</a> signals. </p>
<p>Reimplemented from <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#abf2d10492352754f92dc11cea27625cb">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a7d189d82d85c24be23bac4d8ab21223a"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelRowsInserted" ref="a7d189d82d85c24be23bac4d8ab21223a" args="(const WModelIndex &parent, int start, int end)" -->
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<td class="paramname"><em>end</em> </td>
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<p>Method called when rows have been inserted from the model. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#a54c971088bb9b424f97fe31c17f8f12f" title="Signal emitted after a number of rows were inserted.">WAbstractItemModel::rowsInserted</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a69ef1dd5294dbd1de8f6ada34d96af45">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a8c9668712e4b19567a3959227ae0f8ae"></a><!-- doxytag: member="Wt::Chart::WPieChart::modelRowsRemoved" ref="a8c9668712e4b19567a3959227ae0f8ae" args="(const WModelIndex &parent, int start, int end)" -->
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<p>Method called when rows have been removed from the model. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1WAbstractItemModel.html#a0f73bbfb08f2739ac12881f62a61bc7f" title="Signal emitted after a number of rows were removed.">WAbstractItemModel::rowsRemoved</a> </dd></dl>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a1857420ee055502380caa45446e5c0c4">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="a3929b0fc7d0b71f06809207b3d34df08"></a><!-- doxytag: member="Wt::Chart::WPieChart::paint" ref="a3929b0fc7d0b71f06809207b3d34df08" args="(WPainter &painter, const WRectF &rectangle=WRectF()) const " -->
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<p>Paint the chart in a rectangle of the given painter. </p>
<p>Paints the chart inside the <em>painter</em>, in the area indicated by <em>rectangle</em>. When <em>rectangle</em> is a null rectangle, the entire painter <a class="el" href="classWt_1_1WPainter.html#a0bcac25d9328887ed15669b4a4ae52de">window</a> is used. </p>
<p>Implements <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#af642c65474e95ec0969906d8d31e2862">Wt::Chart::WAbstractChart</a>.</p>
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<a class="anchor" id="ab1653eea26f873b295a7350bd0dbb9ac"></a><!-- doxytag: member="Wt::Chart::WPieChart::paintEvent" ref="ab1653eea26f873b295a7350bd0dbb9ac" args="(Wt::WPaintDevice *paintDevice)" -->
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<td class="memname">void Wt::Chart::WPieChart::paintEvent </td>
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<td class="paramtype"><a class="el" href="classWt_1_1WPaintDevice.html">Wt::WPaintDevice</a> * </td>
<td class="paramname"><em>paintDevice</em></td><td>)</td>
<td><code> [protected, virtual]</code></td>
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<p>Paints the widget. </p>
<p>You should reimplement this method to paint the contents of the widget, using the given paintDevice. </p>
<p>Implements <a class="el" href="classWt_1_1WPaintedWidget.html#ad8ce22eff41754c8616f45851f57fb1a">Wt::WPaintedWidget</a>.</p>
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<a class="anchor" id="aa573182ef1ba641315f3d2bf5899784f"></a><!-- doxytag: member="Wt::Chart::WPieChart::setAvoidLabelRendering" ref="aa573182ef1ba641315f3d2bf5899784f" args="(double percent)" -->
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<td class="memname">void Wt::Chart::WPieChart::setAvoidLabelRendering </td>
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<td class="paramname"><em>percent</em></td><td>)</td>
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<p>Sets the percentage value to avoid rendering of label texts. </p>
<p>The default value is 0 percent. </p>
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<a class="anchor" id="af0fc06d47e2b717f1faeae80926d068c"></a><!-- doxytag: member="Wt::Chart::WPieChart::setBrush" ref="af0fc06d47e2b717f1faeae80926d068c" args="(int modelRow, const WBrush &brush)" -->
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<td class="memname">void Wt::Chart::WPieChart::setBrush </td>
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<td class="paramtype">int </td>
<td class="paramname"><em>modelRow</em>, </td>
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<p>Customizes the brush used for a pie segment. </p>
<p>By default, the brush is taken from the <a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a29320100617c0a195904c89874fcc7f3" title="Returns the palette for the chart.">palette()</a>. You can use this method to override the palette's brush for a particular <em>modelRow</em>.</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#a044936e6358c8efc55699effc4b946d8" title="Set a palette for the chart.">setPalette(WChartPalette *)</a> </dd></dl>
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<a class="anchor" id="a3692ea22a1417e599e9358b0ed5a723d"></a><!-- doxytag: member="Wt::Chart::WPieChart::setDataColumn" ref="a3692ea22a1417e599e9358b0ed5a723d" args="(int modelColumn)" -->
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<td class="memname">void Wt::Chart::WPieChart::setDataColumn </td>
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<p>Sets the model column that holds the data. </p>
<p>The data column should contain data that can be converted to a number, but should not necessarily be of a number type, see also <a class="el" href="group__modelview.html#ga2494f8093b2b8f2f9c0aa7699e7bfc2a" title="Interprets a boost::any as a number value.">asNumber(const boost::any&)</a>.</p>
<p>The default value is -1 (not defined).</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#aa23d116689e939301470398df8ad5c8b" title="Set the model.">setModel(WAbstractItemModel *)</a>, <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#aa40bfd3f2095106f8081596b235de4c6" title="Sets the model column that holds the labels.">setLabelsColumn(int)</a> </dd></dl>
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<a class="anchor" id="a89324f6159e5893e1ddd368718d00e5d"></a><!-- doxytag: member="Wt::Chart::WPieChart::setDisplayLabels" ref="a89324f6159e5893e1ddd368718d00e5d" args="(WFlags< LabelOption > options)" -->
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<td class="memname">void Wt::Chart::WPieChart::setDisplayLabels </td>
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<td class="paramtype">WFlags< <a class="el" href="group__charts.html#ga9345394a8eeda6800d8a24c5df44d983">LabelOption</a> > </td>
<td class="paramname"><em>options</em></td><td>)</td>
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<p>Configures if and how labels should be displayed. </p>
<p>The <em>options</em> must be the logical OR of a placement option (<a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983aeb92488c13b0ccc46cddbb3445007443">Inside</a> or <a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983a88861128e109b6a63e76a311dc57e408">Outside</a>) and <a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983a60df9add81425373c20fafe8c4e40b0e">TextLabel</a> and/or <a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983a307741727c5ef5e33efcd347a0853e50">TextPercentage</a>. If both TextLabel and TextPercentage are specified, then these are combined as "<label>: <percentage>".</p>
<p>The default value is <a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983a866d745e727785c20e31d5ea76bb58a3">NoLabels</a>. </p>
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<a class="anchor" id="a4a2bfe0c147b5433d340d49351b5032c"></a><!-- doxytag: member="Wt::Chart::WPieChart::setExplode" ref="a4a2bfe0c147b5433d340d49351b5032c" args="(int modelRow, double factor)" -->
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<td class="memname">void Wt::Chart::WPieChart::setExplode </td>
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<p>Sets the explosion factor for a pie segment. </p>
<p>Separates the segment corresponding to model row <em>modelRow</em> from the rest of the pie. The <em>factor</em> is a positive number that represents the distance from the center as a fraction of the pie radius. Thus, 0 corresponds to no separation, and 0.1 to a 10% separation, and 1 to a separation where the segment tip is on the outer perimeter of the pie.</p>
<p>The default value is 0. </p>
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<a class="anchor" id="aa40bfd3f2095106f8081596b235de4c6"></a><!-- doxytag: member="Wt::Chart::WPieChart::setLabelsColumn" ref="aa40bfd3f2095106f8081596b235de4c6" args="(int column)" -->
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<td class="memname">void Wt::Chart::WPieChart::setLabelsColumn </td>
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<p>Sets the model column that holds the labels. </p>
<p>The labels are used only when <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a89324f6159e5893e1ddd368718d00e5d" title="Configures if and how labels should be displayed.">setDisplayLabels()</a> is called with the <a class="el" href="group__charts.html#gga9345394a8eeda6800d8a24c5df44d983a60df9add81425373c20fafe8c4e40b0e">TextLabel</a> option.</p>
<p>The default value is -1 (not defined).</p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WAbstractChart.html#aa23d116689e939301470398df8ad5c8b" title="Set the model.">setModel(WAbstractItemModel *)</a>, <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a89324f6159e5893e1ddd368718d00e5d" title="Configures if and how labels should be displayed.">setDisplayLabels()</a>, <a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a3692ea22a1417e599e9358b0ed5a723d" title="Sets the model column that holds the data.">setDataColumn(int)</a> </dd></dl>
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<a class="anchor" id="ae36d57f4c2801cb8599a1bc99e340a24"></a><!-- doxytag: member="Wt::Chart::WPieChart::setPerspectiveEnabled" ref="ae36d57f4c2801cb8599a1bc99e340a24" args="(bool enabled, double height=1.0)" -->
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<td class="memname">void Wt::Chart::WPieChart::setPerspectiveEnabled </td>
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<p>Enables a 3D perspective effect on the pie. </p>
<p>A 3D perspective effect is added, which may be customized by specifying the simulated <em>height</em> of the pie. The height is defined as a fraction of the pie radius.</p>
<p>The default value is false. </p>
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<a class="anchor" id="a74b91c0514247ba9ea91b53fbae795f7"></a><!-- doxytag: member="Wt::Chart::WPieChart::setShadowEnabled" ref="a74b91c0514247ba9ea91b53fbae795f7" args="(bool enabled)" -->
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<p>Enables a shadow effect. </p>
<p>A soft shadow effect is added.</p>
<p>The default value is false. </p>
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<a class="anchor" id="a407707a2ab0b2c56500e35da85e619a5"></a><!-- doxytag: member="Wt::Chart::WPieChart::setStartAngle" ref="a407707a2ab0b2c56500e35da85e619a5" args="(double degrees)" -->
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<td class="memname">void Wt::Chart::WPieChart::setStartAngle </td>
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<p>Sets the angle of the first segment. </p>
<p>The default value is 45 degrees. </p>
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<p>Returns the angle of the first segment. </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="classWt_1_1Chart_1_1WPieChart.html#a407707a2ab0b2c56500e35da85e619a5" title="Sets the angle of the first segment.">setStartAngle(double)</a> </dd></dl>
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