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<td >Qt 5.12</td><td ><a href="qtquick-index.html">Qt Quick</a></td><td ><a href="qtquick-qmlmodule.html">QML Types</a></td><td >Gradient QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right"><a href="qtquick-index.html">Qt 5.12.6 Reference Documentation</a></td>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
<li class="level2"><a href="#example-usage">Example Usage</a></li>
<li class="level2"><a href="#performance-and-limitations">Performance and Limitations</a></li>
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<h1 class="title">Gradient QML Type</h1>
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<!-- $$$Gradient-brief -->
<p>Defines a gradient fill. <a href="#details">More...</a></p>
<!-- @@@Gradient -->
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<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQuick 2.12</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherited By:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-shapes-shapegradient.html">ShapeGradient</a></p>
</td></tr></table></div><ul>
<li><a href="qml-qtquick-gradient-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtquick-gradient.html#orientation-prop">orientation</a></b></b> : enumeration</li>
<li class="fn"><b><b><a href="qml-qtquick-gradient.html#stops-prop">stops</a></b></b> : list<GradientStop></li>
</ul>
<!-- $$$Gradient-description -->
<a name="details"></a>
<h2 id="details">Detailed Description</h2>
<p>A gradient is defined by two or more colors, which will be blended seamlessly.</p>
<p>The colors are specified as a set of <a href="qml-qtquick-gradientstop.html">GradientStop</a> child items, each of which defines a position on the gradient from 0.0 to 1.0 and a color. The position of each <a href="qml-qtquick-gradientstop.html">GradientStop</a> is defined by setting its <a href="qml-qtquick-gradientstop.html#position-prop">position</a> property; its color is defined using its <a href="qml-qtquick-gradientstop.html#color-prop">color</a> property.</p>
<p>A gradient without any gradient stops is rendered as a solid white fill.</p>
<p>Note that this item is not a visual representation of a gradient. To display a gradient, use a visual item (like <a href="qml-qtquick-rectangle.html">Rectangle</a>) which supports the use of gradients.</p>
<a name="example-usage"></a>
<h2 id="example-usage">Example Usage</h2>
<div class="float-right"><p><img src="images/qml-gradient.png" alt="" /></p>
</div><p>The following example declares a <a href="qml-qtquick-rectangle.html">Rectangle</a> item with a gradient starting with red, blending to yellow at one third of the height of the rectangle, and ending with green:</p>
<pre class="qml">
Rectangle {
width: 100; height: 100
gradient: Gradient {
GradientStop { position: 0.0; color: "red" }
GradientStop { position: 0.33; color: "yellow" }
GradientStop { position: 1.0; color: "green" }
}
}
</pre>
<br style="clear: both" /><a name="performance-and-limitations"></a>
<h2 id="performance-and-limitations">Performance and Limitations</h2>
<p>Calculating gradients can be computationally expensive compared to the use of solid color fills or images. Consider using gradients for static items in a user interface.</p>
<p>Since Qt 5.12, vertical and horizontal linear gradients can be applied to items. If you need to apply angled gradients, a combination of rotation and clipping can be applied to the relevant items. Alternatively, consider using <a href="qtquick-module.html">QtQuick</a>.Shapes::LinearGradient or QtGraphicalEffects::LinearGradient. These approaches can all introduce additional performance requirements for your application.</p>
<p>The use of animations involving gradient stops may not give the desired result. An alternative way to animate gradients is to use pre-generated images or SVG drawings containing gradients.</p>
<p><b>See also </b><a href="qml-qtquick-gradientstop.html">GradientStop</a>.</p>
<!-- @@@Gradient -->
<h2>Property Documentation</h2>
<!-- $$$orientation -->
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<tr valign="top" class="odd" id="orientation-prop">
<td class="tblQmlPropNode"><p>
<a name="orientation-prop"></a><span class="name">orientation</span> : <span class="type">enumeration</span></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>Set this property to define the direction of the gradient.</p>
<ul>
<li>Gradient.Vertical - a vertical gradient</li>
<li>Gradient.Horizontal - a horizontal gradient</li>
</ul>
<p>The default is Gradient.Vertical.</p>
<p>This property was introduced in Qt 5.12.</p>
</div></div><!-- @@@orientation -->
<br/>
<!-- $$$stops -->
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<a name="stops-prop"></a><span class="qmldefault">[default] </span><span class="name">stops</span> : <span class="type">list</span><<span class="type"><a href="qml-qtquick-gradientstop.html">GradientStop</a></span>></p></td></tr>
</table></div>
</div><div class="qmldoc"><p>This property holds the gradient stops describing the gradient.</p>
<p>By default, this property contains an empty list.</p>
<p>To set the gradient stops, define them as children of the Gradient.</p>
</div></div><!-- @@@stops -->
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