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<h1 class="title">LegendItem.qml Example File</h1>
<span class="subtitle">qmllegend/qml/qmllegend/LegendItem.qml</span>
<!-- $$$qmllegend/qml/qmllegend/LegendItem.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
import QtQuick 2.1
import QtQuick.Layouts 1.0
import QtQuick.Window 2.1
import QtDataVisualization 1.0
<span class="type">Rectangle</span> {
property <span class="type"><a href="qml-qtdatavisualization-theme3d.html">Theme3D</a></span> <span class="name">theme</span>
property <span class="type"><a href="qml-qtdatavisualization-bar3dseries.html">Bar3DSeries</a></span> <span class="name">series</span>
property <span class="type">point</span> <span class="name">previousSelection</span>
<span class="name">id</span>: <span class="name">legendItem</span>
<span class="name">state</span>: <span class="string">"unselected"</span>
<span class="comment">// Workaround for a layout bug that in some situations causes changing from fully opaque color</span>
<span class="comment">// to a transparent one to use black background instead of what is actually under the items.</span>
<span class="comment">// Having the control always slighthly transparent forces the background to be refreshed</span>
<span class="comment">// properly.</span>
<span class="name">opacity</span>: <span class="number">0.999</span>
<span class="type">RowLayout</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">spacing</span>: <span class="number">0</span>
<span class="name">clip</span>: <span class="number">true</span>
<span class="type">Item</span> {
<span class="name">id</span>: <span class="name">markerSpace</span>
<span class="name">Layout</span>.minimumWidth: <span class="number">20</span>
<span class="name">Layout</span>.minimumHeight: <span class="number">20</span>
<span class="name">Layout</span>.fillWidth: <span class="number">true</span>
<span class="name">Layout</span>.fillHeight: <span class="number">true</span>
<span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignVCenter</span>
<span class="type">Rectangle</span> {
<span class="name">x</span>: <span class="name">parent</span>.<span class="name">x</span> <span class="operator">+</span> <span class="name">parent</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">4</span>
<span class="name">y</span>: <span class="name">parent</span>.<span class="name">y</span> <span class="operator">+</span> <span class="name">parent</span>.<span class="name">height</span> <span class="operator">/</span> <span class="number">4</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">2</span>
<span class="name">height</span>: <span class="name">width</span>
<span class="name">border</span>.color: <span class="string">"black"</span>
<span class="name">color</span>: <span class="name">series</span>.<span class="name">baseColor</span>
}
}
<span class="type">Item</span> {
<span class="name">height</span>: <span class="name">markerSpace</span>.<span class="name">height</span>
<span class="name">Layout</span>.fillWidth: <span class="number">true</span>
<span class="name">Layout</span>.fillHeight: <span class="number">true</span>
<span class="name">Layout</span>.alignment: <span class="name">Qt</span>.<span class="name">AlignVCenter</span>
<span class="name">Layout</span>.minimumWidth: <span class="number">100</span>
<span class="type">Text</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">text</span>: <span class="name">series</span>.<span class="name">name</span>
<span class="name">verticalAlignment</span>: <span class="name">Text</span>.<span class="name">AlignVCenter</span>
<span class="name">clip</span>: <span class="number">true</span>
<span class="name">color</span>: <span class="name">theme</span>.<span class="name">labelTextColor</span>
<span class="name">font</span>: <span class="name">theme</span>.<span class="name">font</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">legendItem</span>
<span class="name">onClicked</span>: {
<span class="keyword">if</span> (<span class="name">legendItem</span>.<span class="name">state</span> <span class="operator">===</span> <span class="string">"selected"</span>) {
<span class="name">series</span>.<span class="name">selectedBar</span> <span class="operator">=</span> <span class="name">series</span>.<span class="name">invalidSelectionPosition</span>
} <span class="keyword">else</span> {
<span class="name">series</span>.<span class="name">selectedBar</span> <span class="operator">=</span> <span class="name">previousSelection</span>
}
}
}
<span class="type">Connections</span> {
<span class="name">target</span>: <span class="name">series</span>
<span class="name">onSelectedBarChanged</span>: {
<span class="keyword">if</span> (<span class="name">position</span> <span class="operator">!=</span> <span class="name">series</span>.<span class="name">invalidSelectionPosition</span>) {
<span class="name">previousSelection</span> <span class="operator">=</span> <span class="name">position</span>
}
}
}
<span class="name">states</span>: [
<span class="type">State</span> {
<span class="name">name</span>: <span class="string">"selected"</span>
<span class="name">when</span>: <span class="name">series</span>.<span class="name">selectedBar</span> <span class="operator">!=</span> <span class="name">series</span>.<span class="name">invalidSelectionPosition</span>
<span class="type">PropertyChanges</span> {
<span class="name">target</span>: <span class="name">legendItem</span>
<span class="name">color</span>: <span class="name">series</span>.<span class="name">singleHighlightColor</span>
}
},
<span class="type">State</span> {
<span class="name">name</span>: <span class="string">"unselected"</span>
<span class="name">when</span>: <span class="name">series</span>.<span class="name">selectedBar</span> <span class="operator">==</span> <span class="name">series</span>.<span class="name">invalidSelectionPosition</span>
<span class="type">PropertyChanges</span> {
<span class="name">target</span>: <span class="name">legendItem</span>
<span class="name">color</span>: <span class="name">theme</span>.<span class="name">labelBackgroundColor</span>
}
}
]
}
</pre>
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<!-- @@@qmllegend/qml/qmllegend/LegendItem.qml -->
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