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<title>TumblerStyle QML Type | Qt Quick Controls 5.5</title>
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<li>Qt 5.5</li>
<li><a href="qtquickcontrols-index.html">Qt Quick Controls</a></li>
<li><a href="qtquick-controls-qmlmodule.html">QML Types</a></li>
<li>TumblerStyle QML Type</li>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">TumblerStyle QML Type</h1>
<span class="subtitle"></span>
<!-- $$$TumblerStyle-brief -->
<p>Provides custom styling for Tumbler. <a href="#details">More...</a></p>
<!-- @@@TumblerStyle -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQuick.Controls.Styles 1.4</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt 5.5</td></tr></table></div><ul>
<li><a href="qml-qtquick-controls-styles-tumblerstyle-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#background-prop">background</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#columnForeground-prop">columnForeground</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#control-prop">control</a></b></b> : Tumbler</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#delegate-prop">delegate</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#foreground-prop">foreground</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#frame-prop">frame</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#highlight-prop">highlight</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#separator-prop">separator</a></b></b> : Component</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#spacing-prop">spacing</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtquick-controls-styles-tumblerstyle.html#visibleItemCount-prop">visibleItemCount</a></b></b> : int</li>
</ul>
<!-- $$$TumblerStyle-description -->
<a name="details"></a>
<h2 id="details">Detailed Description</h2>
</p>
<p>You can create a custom tumbler by replacing the following delegates:</p>
<ul>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#background-prop">background</a></li>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#foreground-prop">foreground</a></li>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#separator-prop">separator</a></li>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#delegate-prop">delegate</a></li>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#highlight-prop">highlight</a></li>
<li><a href="qml-qtquick-controls-styles-tumblerstyle.html#frame-prop">frame</a></li>
</ul>
<!-- @@@TumblerStyle -->
<h2>Property Documentation</h2>
<!-- $$$background -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="background-prop"><td class="tblQmlPropNode"><p><a name="background-prop"></a><span class="name">background</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The background of the tumbler.</p>
</div></div><!-- @@@background -->
<br/>
<!-- $$$columnForeground -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="columnForeground-prop"><td class="tblQmlPropNode"><p><a name="columnForeground-prop"></a><span class="name">columnForeground</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The foreground of each column.</p>
<p>In terms of stacking order, this component is displayed above the delegate and highlight components, but below the foreground component.</p>
<div class="table"><table class="generic">
<tr valign="top" class="odd"><td ><code>readonly property int</code> <b>styleData.column</b></td><td >The index of the column that contains this item.</td></tr>
<tr valign="top" class="even"><td ><code>readonly property bool</code> <b>styleData.activeFocus</b></td><td ><code>true</code> if the column that contains this item has active focus.</td></tr>
</table></div>
<p>Delegates for items in specific columns can be defined using TumblerColumn's columnForeground property, which will be used instead of this component.</p>
</div></div><!-- @@@columnForeground -->
<br/>
<!-- $$$control -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="control-prop"><td class="tblQmlPropNode"><p><a name="control-prop"></a><span class="qmlreadonly">read-only</span><span class="name">control</span> : <span class="type">Tumbler</span></p></td></tr></table></div></div><div class="qmldoc"><p>The Tumbler that this style is attached to.</p>
</div></div><!-- @@@control -->
<br/>
<!-- $$$delegate -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="delegate-prop"><td class="tblQmlPropNode"><p><a name="delegate-prop"></a><span class="name">delegate</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The delegate provides a template defining each item instantiated in the column. Each instance of this component has access to the following properties:</p>
<div class="table"><table class="generic">
<tr valign="top" class="odd"><td ><code>readonly property int</code> <b>styleData.index</b></td><td >The index of this delegate in the model.</td></tr>
<tr valign="top" class="even"><td ><code>readonly property int</code> <b>styleData.column</b></td><td >The index of the column that contains this item.</td></tr>
<tr valign="top" class="odd"><td ><code>readonly property real</code> <b>styleData.value</b></td><td >The value for this delegate from the model.</td></tr>
<tr valign="top" class="even"><td ><code>readonly property bool</code> <b>styleData.current</b></td><td ><code>true</code> if this delegate is the current item.</td></tr>
<tr valign="top" class="odd"><td ><code>readonly property real</code> <b>styleData.displacement</b></td><td ><code>A</code> value from <code>-visibleItemCount / 2</code> to <code>visibleItemCount / 2</code> which represents how far away this item is from being the current item, with <code>0</code> being completely current.<p>For example, the item below will be 40% opaque when it is not the current item, and transition to 100% opacity when it becomes the current item:</p>
<pre class="cpp">delegate: Text {
text: styleData<span class="operator">.</span>value
opacity: <span class="number">0.4</span> <span class="operator">+</span> Math<span class="operator">.</span>max(<span class="number">0</span><span class="operator">,</span> <span class="number">1</span> <span class="operator">-</span> Math<span class="operator">.</span>abs(styleData<span class="operator">.</span>displacement)) <span class="operator">*</span> <span class="number">0.6</span>
}</pre>
</td></tr>
<tr valign="top" class="even"><td ><code>readonly property bool</code> <b>styleData.activeFocus</b></td><td ><code>true</code> if the column that contains this item has active focus.</td></tr>
</table></div>
<p>Properties of the model are also available depending upon the type of <a href="../qtquick/qtquick-modelviewsdata-modelview.html#qml-data-models">Data Model</a>.</p>
<p>Delegates for items in specific columns can be defined using TumblerColumn's delegate property, which will be used instead of this delegate.</p>
<p>The <a href="../qtquick/qml-qtquick-item.html#implicitHeight-prop">implicitHeight</a> property must be set, and it must be the same for each delegate.</p>
</div></div><!-- @@@delegate -->
<br/>
<!-- $$$foreground -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="foreground-prop"><td class="tblQmlPropNode"><p><a name="foreground-prop"></a><span class="name">foreground</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The foreground of the tumbler.</p>
</div></div><!-- @@@foreground -->
<br/>
<!-- $$$frame -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="frame-prop"><td class="tblQmlPropNode"><p><a name="frame-prop"></a><span class="name">frame</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The frame around the tumbler.</p>
<p>The <a href="../qtquick/qml-qtquick-item.html#implicitWidth-prop">implicitWidth</a> property must be set, and should be the same value for each separator.</p>
</div></div><!-- @@@frame -->
<br/>
<!-- $$$highlight -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="highlight-prop"><td class="tblQmlPropNode"><p><a name="highlight-prop"></a><span class="name">highlight</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The delegate for the highlight of each column.</p>
<p>Delegates for the highlight of specific columns can be defined using TumblerColumn's highlight property, which will be used instead of this delegate.</p>
<p>Each instance of this component has access to the following properties:</p>
<div class="table"><table class="generic">
<tr valign="top" class="odd"><td ><code>readonly property int</code> <b>styleData.index</b></td><td >The index of this column in the tumbler.</td></tr>
<tr valign="top" class="even"><td ><code>readonly property int</code> <b>styleData.columnIndex</b></td><td >The index of the column that contains this highlight.</td></tr>
<tr valign="top" class="odd"><td ><code>readonly property bool</code> <b>styleData.activeFocus</b></td><td ><code>true</code> if the column that contains this highlight has active focus.</td></tr>
</table></div>
</div></div><!-- @@@highlight -->
<br/>
<!-- $$$separator -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="separator-prop"><td class="tblQmlPropNode"><p><a name="separator-prop"></a><span class="name">separator</span> : <span class="type"><a href="../qtqml/qml-qtqml-component.html">Component</a></span></p></td></tr></table></div></div><div class="qmldoc"><p>The separator between each column.</p>
<p>The <a href="../qtquick/qml-qtquick-item.html#implicitWidth-prop">implicitWidth</a> property must be set, and should be the same value for each separator.</p>
</div></div><!-- @@@separator -->
<br/>
<!-- $$$spacing -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="spacing-prop"><td class="tblQmlPropNode"><p><a name="spacing-prop"></a><span class="name">spacing</span> : <span class="type">real</span></p></td></tr></table></div></div><div class="qmldoc"><p>This property holds the spacing between each delegate.</p>
</div></div><!-- @@@spacing -->
<br/>
<!-- $$$visibleItemCount -->
<div class="qmlitem"><div class="qmlproto"><div class="table"><table class="qmlname"><tr valign="top" class="odd" id="visibleItemCount-prop"><td class="tblQmlPropNode"><p><a name="visibleItemCount-prop"></a><span class="name">visibleItemCount</span> : <span class="type">int</span></p></td></tr></table></div></div><div class="qmldoc"><p>This property holds the amount of items visible in each column.</p>
<p>This value should be an odd number.</p>
</div></div><!-- @@@visibleItemCount -->
<br/>
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