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<td >Qt 5.9</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">Qt 5.9.4 Reference Documentation</td>
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<h3><a name="toc">Contents</a></h3>
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<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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<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">
<span class="type">AnimatedAreaSeries</span> {
<span class="name">id</span>: <span class="name">municipalSeries</span>
<span class="name">name</span>: <span class="string">"municipal"</span>
<span class="name">axisX</span>: <span class="name">axisX</span>
<span class="name">axisY</span>: <span class="name">axisY</span>
<span class="name">borderWidth</span>: <span class="number">0</span>
<span class="name">upperSeries</span>: <span class="name">LineSeries</span> {
<span class="name">id</span>: <span class="name">municipalUpper</span>
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2006</span>; <span class="name">y</span>: <span class="number">33119</span> <span class="operator">+</span> <span class="number">13443</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2007</span>; <span class="name">y</span>: <span class="number">37941</span> <span class="operator">+</span> <span class="number">15311</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2008</span>; <span class="name">y</span>: <span class="number">40122</span> <span class="operator">+</span> <span class="number">16552</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2009</span>; <span class="name">y</span>: <span class="number">38991</span> <span class="operator">+</span> <span class="number">17904</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2010</span>; <span class="name">y</span>: <span class="number">34055</span> <span class="operator">+</span> <span class="number">17599</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2011</span>; <span class="name">y</span>: <span class="number">34555</span> <span class="operator">+</span> <span class="number">19002</span> }
<span class="type"><a href="qml-qtcharts-xypoint.html">XYPoint</a></span> { <span class="name">x</span>: <span class="number">2012</span>; <span class="name">y</span>: <span class="number">38991</span> <span class="operator">+</span> <span class="number">19177</span> }
}
<span class="name">lowerSeries</span>: <span class="name">stateUpper</span>
}
</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">
<span class="type">Row</span> {
<span class="name">id</span>: <span class="name">legendRow</span>
<span class="name">anchors</span>.centerIn: <span class="name">parent</span>
<span class="name">spacing</span>: <span class="number">10</span>
<span class="type">Repeater</span> {
<span class="name">id</span>: <span class="name">legendRepeater</span>
<span class="name">model</span>: <span class="name">seriesCount</span>
<span class="name">delegate</span>: <span class="name">legendDelegate</span>
}
}
<span class="type">Component</span> {
<span class="name">id</span>: <span class="name">legendDelegate</span>
<span class="type">Rectangle</span> {
<span class="name">id</span>: <span class="name">rect</span>
...
<span class="type">MouseArea</span> {
<span class="name">id</span>: <span class="name">mouseArea</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">hoverEnabled</span>: <span class="number">true</span>
<span class="name">onEntered</span>: {
<span class="name">rect</span>.<span class="name">gradient</span> <span class="operator">=</span> <span class="name">buttonGradientHovered</span>;
<span class="name">legend</span>.<span class="name">entered</span>(<span class="name">label</span>.<span class="name">text</span>);
}
<span class="name">onExited</span>: {
<span class="name">rect</span>.<span class="name">gradient</span> <span class="operator">=</span> <span class="name">buttonGradient</span>;
<span class="name">legend</span>.<span class="name">exited</span>(<span class="name">label</span>.<span class="name">text</span>);
<span class="name">marker</span>.<span class="name">opacity</span> <span class="operator">=</span> <span class="number">0.3</span>;
<span class="name">marker</span>.<span class="name">height</span> <span class="operator">=</span> <span class="number">10</span>;
}
<span class="name">onClicked</span>: {
<span class="name">legend</span>.<span class="name">selected</span>(<span class="name">label</span>.<span class="name">text</span>);
<span class="name">marker</span>.<span class="name">opacity</span> <span class="operator">=</span> <span class="number">1.0</span>;
<span class="name">marker</span>.<span class="name">height</span> <span class="operator">=</span> <span class="number">12</span>;
}
}
</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">
<span class="type"><a href="qml-qtcharts-chartview.html">ChartView</a></span> {
<span class="name">id</span>: <span class="name">chartViewHighlighted</span>
<span class="name">title</span>: <span class="string">""</span>
property <span class="type">variant</span> <span class="name">selectedSeries</span>
signal <span class="type">clicked</span>
<span class="name">legend</span>.visible: <span class="number">false</span>
<span class="name">margins</span>.top: <span class="number">10</span>
<span class="name">margins</span>.bottom: <span class="number">0</span>
<span class="name">antialiasing</span>: <span class="number">true</span>
<span class="type"><a href="qml-qtcharts-lineseries.html">LineSeries</a></span> {
<span class="name">id</span>: <span class="name">lineSeries</span>
<span class="name">axisX</span>: <span class="name">ValueAxis</span> {
<span class="name">min</span>: <span class="number">2006</span>
<span class="name">max</span>: <span class="number">2012</span>
<span class="name">labelFormat</span>: <span class="string">"%.0f"</span>
<span class="name">tickCount</span>: <span class="number">7</span>
}
<span class="name">axisY</span>: <span class="name">ValueAxis</span> {
<span class="name">id</span>: <span class="name">axisY</span>
<span class="name">titleText</span>: <span class="string">"EUR"</span>
<span class="name">min</span>: <span class="number">0</span>
<span class="name">max</span>: <span class="number">40000</span>
<span class="name">labelFormat</span>: <span class="string">"%.0f"</span>
<span class="name">tickCount</span>: <span class="number">5</span>
}
}
</pre>
<p>Files:</p>
<ul>
<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-main-cpp.html">qmlcustomlegend/main.cpp</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>
</ul>
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x86_64
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media
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core-updates
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19952c5e751bf7e3108c3c59625b0f35
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