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<h1 class="title">dynamiclist.qml Example File</h1>
<span class="small-subtitle">declarative/modelviews/listview/highlightranges/qml/highlightranges/dynamiclist.qml</span>
<!-- $$$declarative/modelviews/listview/highlightranges/qml/highlightranges/dynamiclist.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** &quot;Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** &quot;AS IS&quot; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.&quot;
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
import QtQuick 1.0
import &quot;content&quot;
<span class="comment">// This example shows how items can be dynamically added to and removed from</span>
<span class="comment">// a ListModel, and how these list modifications can be animated.</span>
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">container</span>
<span class="name">width</span>: <span class="number">500</span>; <span class="name">height</span>: <span class="number">400</span>
<span class="name">color</span>: <span class="string">&quot;#343434&quot;</span>
<span class="comment">// The model:</span>
<span class="type"><a href="qml-listmodel.html">ListModel</a></span> {
<span class="name">id</span>: <span class="name">fruitModel</span>
<span class="type"><a href="qml-listelement.html">ListElement</a></span> {
<span class="name">name</span>: <span class="string">&quot;Apple&quot;</span>; <span class="name">cost</span>: <span class="number">2.45</span>
<span class="name">attributes</span>: [
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Core&quot;</span> },
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Deciduous&quot;</span> }
]
}
<span class="type"><a href="qml-listelement.html">ListElement</a></span> {
<span class="name">name</span>: <span class="string">&quot;Banana&quot;</span>; <span class="name">cost</span>: <span class="number">1.95</span>
<span class="name">attributes</span>: [
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Tropical&quot;</span> },
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Seedless&quot;</span> }
]
}
<span class="type"><a href="qml-listelement.html">ListElement</a></span> {
<span class="name">name</span>: <span class="string">&quot;Cumquat&quot;</span>; <span class="name">cost</span>: <span class="number">3.25</span>
<span class="name">attributes</span>: [
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Citrus&quot;</span> }
]
}
<span class="type"><a href="qml-listelement.html">ListElement</a></span> {
<span class="name">name</span>: <span class="string">&quot;Durian&quot;</span>; <span class="name">cost</span>: <span class="number">9.95</span>
<span class="name">attributes</span>: [
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Tropical&quot;</span> },
<span class="type"><a href="qml-listelement.html">ListElement</a></span> { <span class="name">description</span>: <span class="string">&quot;Smelly&quot;</span> }
]
}
}
<span class="comment">// The delegate for each fruit in the model:</span>
<span class="type"><a href="qml-component.html">Component</a></span> {
<span class="name">id</span>: <span class="name">listDelegate</span>
<span class="type"><a href="qml-item.html">Item</a></span> {
<span class="name">id</span>: <span class="name">delegateItem</span>
<span class="name">width</span>: <span class="name">listView</span>.<span class="name">width</span>; <span class="name">height</span>: <span class="number">55</span>
<span class="name">clip</span>: <span class="number">true</span>
<span class="type"><a href="qml-row.html">Row</a></span> {
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">spacing</span>: <span class="number">10</span>
<span class="type"><a href="qml-column.html">Column</a></span> {
<span class="type"><a href="qml-image.html">Image</a></span> {
<span class="name">source</span>: <span class="string">&quot;content/pics/arrow-up.png&quot;</span>
<span class="type"><a href="qml-mousearea.html">MouseArea</a></span> { <span class="name">anchors</span>.fill: <span class="name">parent</span>; <span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">move</span>(<span class="name">index</span>, <span class="name">index</span><span class="operator">-</span><span class="number">1</span>, <span class="number">1</span>) }
}
<span class="type"><a href="qml-image.html">Image</a></span> { <span class="name">source</span>: <span class="string">&quot;content/pics/arrow-down.png&quot;</span>
<span class="type"><a href="qml-mousearea.html">MouseArea</a></span> { <span class="name">anchors</span>.fill: <span class="name">parent</span>; <span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">move</span>(<span class="name">index</span>, <span class="name">index</span><span class="operator">+</span><span class="number">1</span>, <span class="number">1</span>) }
}
}
<span class="type"><a href="qml-column.html">Column</a></span> {
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="type"><a href="qml-text.html">Text</a></span> {
<span class="name">text</span>: <span class="name">name</span>
<span class="name">font</span>.pixelSize: <span class="number">15</span>
<span class="name">color</span>: <span class="string">&quot;white&quot;</span>
}
<span class="type"><a href="qml-row.html">Row</a></span> {
<span class="name">spacing</span>: <span class="number">5</span>
<span class="type"><a href="qml-repeater.html">Repeater</a></span> {
<span class="name">model</span>: <span class="name">attributes</span>
<span class="type"><a href="qml-text.html">Text</a></span> { <span class="name">text</span>: <span class="name">description</span>; <span class="name">color</span>: <span class="string">&quot;White&quot;</span> }
}
}
}
}
<span class="type"><a href="qml-row.html">Row</a></span> {
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
<span class="name">spacing</span>: <span class="number">10</span>
<span class="type">PressAndHoldButton</span> {
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">source</span>: <span class="string">&quot;content/pics/plus-sign.png&quot;</span>
<span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">setProperty</span>(<span class="name">index</span>, <span class="string">&quot;cost&quot;</span>, <span class="name">cost</span> <span class="operator">+</span> <span class="number">0.25</span>)
}
<span class="type"><a href="qml-text.html">Text</a></span> {
<span class="name">id</span>: <span class="name">costText</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">text</span>: <span class="string">'$'</span> <span class="operator">+</span> <span class="name">Number</span>(<span class="name">cost</span>).<span class="name">toFixed</span>(<span class="number">2</span>)
<span class="name">font</span>.pixelSize: <span class="number">15</span>
<span class="name">color</span>: <span class="string">&quot;white&quot;</span>
<span class="name">font</span>.bold: <span class="number">true</span>
}
<span class="type">PressAndHoldButton</span> {
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">source</span>: <span class="string">&quot;content/pics/minus-sign.png&quot;</span>
<span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">setProperty</span>(<span class="name">index</span>, <span class="string">&quot;cost&quot;</span>, <span class="name">Math</span>.<span class="name">max</span>(<span class="number">0</span>,<span class="name">cost</span><span class="operator">-</span><span class="number">0.25</span>))
}
<span class="type"><a href="qml-image.html">Image</a></span> {
<span class="name">source</span>: <span class="string">&quot;content/pics/list-delete.png&quot;</span>
<span class="type"><a href="qml-mousearea.html">MouseArea</a></span> { <span class="name">anchors</span>.fill:<span class="name">parent</span>; <span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">remove</span>(<span class="name">index</span>) }
}
}
<span class="comment">// Animate adding and removing of items:</span>
<span class="name">ListView</span>.onAdd: <span class="name">SequentialAnimation</span> {
<span class="type"><a href="qml-propertyaction.html">PropertyAction</a></span> { <span class="name">target</span>: <span class="name">delegateItem</span>; <span class="name">property</span>: <span class="string">&quot;height&quot;</span>; <span class="name">value</span>: <span class="number">0</span> }
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">target</span>: <span class="name">delegateItem</span>; <span class="name">property</span>: <span class="string">&quot;height&quot;</span>; <span class="name">to</span>: <span class="number">55</span>; <span class="name">duration</span>: <span class="number">250</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutQuad</span> }
}
<span class="name">ListView</span>.onRemove: <span class="name">SequentialAnimation</span> {
<span class="type"><a href="qml-propertyaction.html">PropertyAction</a></span> { <span class="name">target</span>: <span class="name">delegateItem</span>; <span class="name">property</span>: <span class="string">&quot;ListView.delayRemove&quot;</span>; <span class="name">value</span>: <span class="number">true</span> }
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">target</span>: <span class="name">delegateItem</span>; <span class="name">property</span>: <span class="string">&quot;height&quot;</span>; <span class="name">to</span>: <span class="number">0</span>; <span class="name">duration</span>: <span class="number">250</span>; <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutQuad</span> }
<span class="comment">// Make sure delayRemove is set back to false so that the item can be destroyed</span>
<span class="type"><a href="qml-propertyaction.html">PropertyAction</a></span> { <span class="name">target</span>: <span class="name">delegateItem</span>; <span class="name">property</span>: <span class="string">&quot;ListView.delayRemove&quot;</span>; <span class="name">value</span>: <span class="number">false</span> }
}
}
}
<span class="comment">// The view:</span>
<span class="type"><a href="qml-listview.html">ListView</a></span> {
<span class="name">id</span>: <span class="name">listView</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>; <span class="name">anchors</span>.margins: <span class="number">20</span>
<span class="name">model</span>: <span class="name">fruitModel</span>
<span class="name">delegate</span>: <span class="name">listDelegate</span>
}
<span class="type"><a href="qml-row.html">Row</a></span> {
<span class="type">anchors</span> { <span class="name">left</span>: <span class="name">parent</span>.<span class="name">left</span>; <span class="name">bottom</span>: <span class="name">parent</span>.<span class="name">bottom</span>; <span class="name">margins</span>: <span class="number">20</span> }
<span class="name">spacing</span>: <span class="number">10</span>
<span class="type">TextButton</span> {
<span class="name">text</span>: <span class="string">&quot;Add an item&quot;</span>
<span class="name">onClicked</span>: {
<span class="name">fruitModel</span>.<span class="name">append</span>({
&quot;name&quot;: <span class="string">&quot;Pizza Margarita&quot;</span>,
&quot;cost&quot;: 5.95,
&quot;attributes&quot;: [{&quot;description&quot;: &quot;Cheese&quot;}, {&quot;description&quot;: &quot;Tomato&quot;}]
})
}
}
<span class="type">TextButton</span> {
<span class="name">text</span>: <span class="string">&quot;Remove all items&quot;</span>
<span class="name">onClicked</span>: <span class="name">fruitModel</span>.<span class="name">clear</span>()
}
}
}</pre>
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