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<td >Qt 5.12</td><td ><a href="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-examples.html">Qt Charts Examples</a></td><td >Qml Custom Legend</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtcharts-index.html">Qt Charts | Commercial or GPLv3</a></td>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#running-the-example">Running the Example</a></li>
<li class="level1"><a href="#customizing-legends">Customizing Legends</a></li>
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<h1 class="title">Qml Custom Legend</h1>
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<!-- $$$qmlcustomlegend-brief -->
<p>This example shows you how to create your own custom legend.</p>
<!-- @@@qmlcustomlegend -->
<!-- $$$qmlcustomlegend-description -->
<div class="descr"> <a name="details"></a>
<p>This application shows you how to create your own custom legend instead of using the built-in legend of <a href="qml-qtcharts-chartview.html">ChartView</a> API.</p>
<p>The main view of the application shows a stacked area chart. This is how one of the stacked areas is created. See ChartViewStacked.qml and AnimatedAreaSeries.qml.</p>
<p class="centerAlign"><img src="images/examples_qmlcustomlegend1.png" alt="" /></p><a name="running-the-example"></a>
<h2 id="running-the-example">Running the Example</h2>
<p>To run the example from Qt Creator, open the <b>Welcome</b> mode and select the example from <b>Examples</b>. For more information, visit Building and Running an Example.</p>
<a name="customizing-legends"></a>
<h2 id="customizing-legends">Customizing Legends</h2>
<pre class="qml">
AnimatedAreaSeries {
id: municipalSeries
name: "municipal"
axisX: axisX
axisY: axisY
borderWidth: 0
upperSeries: LineSeries {
id: municipalUpper
XYPoint { x: 2006; y: 33119 + 13443 }
XYPoint { x: 2007; y: 37941 + 15311 }
XYPoint { x: 2008; y: 40122 + 16552 }
XYPoint { x: 2009; y: 38991 + 17904 }
XYPoint { x: 2010; y: 34055 + 17599 }
XYPoint { x: 2011; y: 34555 + 19002 }
XYPoint { x: 2012; y: 38991 + 19177 }
}
lowerSeries: stateUpper
}
</pre>
<p>Hovering with mouse on top of the legend will highlight the hovered series. (see CustomLegend.qml).</p>
<p class="centerAlign"><img src="images/examples_qmlcustomlegend2.png" alt="" /></p><pre class="qml">
Row {
id: legendRow
anchors.centerIn: parent
spacing: 10
Repeater {
id: legendRepeater
model: seriesCount
delegate: legendDelegate
}
}
Component {
id: legendDelegate
Rectangle {
id: rect
...
MouseArea {
id: mouseArea
anchors.fill: parent
hoverEnabled: true
onEntered: {
rect.gradient = buttonGradientHovered;
legend.entered(label.text);
}
onExited: {
rect.gradient = buttonGradient;
legend.exited(label.text);
marker.opacity = 0.3;
marker.height = 10;
}
onClicked: {
legend.selected(label.text);
marker.opacity = 1.0;
marker.height = 12;
}
}
</pre>
<p>You can also select one of the stacked areas for a closer look as a line series by a mouse click (see ChartViewHighlighted.qml).</p>
<p class="centerAlign"><img src="images/examples_qmlcustomlegend3.png" alt="" /></p><pre class="qml">
ChartView {
id: chartViewHighlighted
title: ""
property variant selectedSeries
signal clicked
legend.visible: false
margins.top: 10
margins.bottom: 0
antialiasing: true
LineSeries {
id: lineSeries
axisX: ValueAxis {
min: 2006
max: 2012
labelFormat: "%.0f"
tickCount: 7
}
axisY: ValueAxis {
id: axisY
titleText: "EUR"
min: 0
max: 40000
labelFormat: "%.0f"
tickCount: 5
}
}
</pre>
<p>Files:</p>
<ul>
<li><a href="qtcharts-qmlcustomlegend-main-cpp.html">qmlcustomlegend/main.cpp</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-animatedareaseries-qml.html">qmlcustomlegend/qml/qmlcustomlegend/AnimatedAreaSeries.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-chartviewhighlighted-qml.html">qmlcustomlegend/qml/qmlcustomlegend/ChartViewHighlighted.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-chartviewselector-qml.html">qmlcustomlegend/qml/qmlcustomlegend/ChartViewSelector.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-chartviewstacked-qml.html">qmlcustomlegend/qml/qmlcustomlegend/ChartViewStacked.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-customlegend-qml.html">qmlcustomlegend/qml/qmlcustomlegend/CustomLegend.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qml-qmlcustomlegend-main-qml.html">qmlcustomlegend/qml/qmlcustomlegend/main.qml</a></li>
<li><a href="qtcharts-qmlcustomlegend-qmlcustomlegend-pro.html">qmlcustomlegend/qmlcustomlegend.pro</a></li>
<li><a href="qtcharts-qmlcustomlegend-resources-qrc.html">qmlcustomlegend/resources.qrc</a></li>
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