<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- examples-qmlcustomlegend.qdoc --> <title>Qml Custom Legend | Qt Charts 5.9</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <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> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"> <div class="toc"> <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> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Qml Custom Legend</h1> <span class="subtitle"></span> <!-- $$$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"> <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> </div> <!-- @@@qmlcustomlegend --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>