<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qquickanimation.cpp --> <title>ColorAnimation QML Type | Qt Quick 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="qtquick-index.html">Qt Quick</a></td><td ><a href="qtquick-qmlmodule.html">QML Types</a></td><td >ColorAnimation QML Type</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="#properties">Properties</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">ColorAnimation QML Type</h1> <span class="subtitle"></span> <!-- $$$ColorAnimation-brief --> <p>Animates changes in color values <a href="#details">More...</a></p> <!-- @@@ColorAnimation --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtQuick 2.7</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtquick-propertyanimation.html">PropertyAnimation</a></p> </td></tr></table></div><ul> <li><a href="qml-qtquick-coloranimation-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2 id="properties">Properties</h2> <ul> <li class="fn"><b><b><a href="qml-qtquick-coloranimation.html#from-prop">from</a></b></b> : color</li> <li class="fn"><b><b><a href="qml-qtquick-coloranimation.html#to-prop">to</a></b></b> : color</li> </ul> <!-- $$$ColorAnimation-description --> <a name="details"></a> <h2 id="details">Detailed Description</h2> <p><a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> is a specialized <a href="qtquick-animation-example.html#propertyanimation">PropertyAnimation</a> that defines an animation to be applied when a color value changes.</p> <p>Here is a <a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> applied to the <code>color</code> property of a <a href="qml-qtquick-rectangle.html">Rectangle</a> as a property value source. It animates the <code>color</code> property's value from its current value to a value of "red", over 1000 milliseconds:</p> <pre class="qml"> import QtQuick 2.0 <span class="type"><a href="qml-qtquick-rectangle.html">Rectangle</a></span> { <span class="name">width</span>: <span class="number">100</span>; <span class="name">height</span>: <span class="number">100</span> <span class="name">color</span>: <span class="string">"red"</span> ColorAnimation on <span class="name">color</span> { <span class="name">to</span>: <span class="string">"yellow"</span>; <span class="name">duration</span>: <span class="number">1000</span> } } </pre> <p>Like any other animation type, a <a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> can be applied in a number of ways, including transitions, behaviors and property value sources. The <a href="qtquick-statesanimations-animations.html">Animation and Transitions in Qt Quick</a> documentation shows a variety of methods for creating animations.</p> <p>For convenience, when a <a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> is used in a <a href="qmlexampletoggleswitch.html#transition">Transition</a>, it will animate any <code>color</code> properties that have been modified during the state change. If a <a href="qml-qtquick-propertyanimation.html#property-prop">property</a> or <a href="qml-qtquick-propertyanimation.html#properties-prop">properties</a> are explicitly set for the animation, then those are used instead.</p> <p><b>See also </b><a href="qtquick-statesanimations-animations.html">Animation and Transitions in Qt Quick</a> and <a href="qtquick-animation-example.html">Qt Quick Examples - Animation</a>.</p> <!-- @@@ColorAnimation --> <h2>Property Documentation</h2> <!-- $$$from --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="from-prop"> <td class="tblQmlPropNode"><p> <a name="from-prop"></a><span class="name">from</span> : <span class="type">color</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the color value at which the animation should begin.</p> <p>For example, the following animation is not applied until a color value has reached "#c0c0c0":</p> <pre class="qml"> <span class="type"><a href="qml-qtquick-item.html">Item</a></span> { <span class="name">states</span>: [ <span class="comment">// States are defined here...</span> ] <span class="name">transition</span>: <span class="name">Transition</span> { <span class="type"><a href="qml-qtquick-coloranimation.html">ColorAnimation</a></span> { <span class="name">from</span>: <span class="string">"#c0c0c0"</span>; <span class="name">duration</span>: <span class="number">2000</span> } } } </pre> <p>If the <a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> is defined within a <a href="qmlexampletoggleswitch.html#transition">Transition</a> or <a href="qml-qtquick-behavior.html">Behavior</a>, this value defaults to the value defined in the starting state of the <a href="qmlexampletoggleswitch.html#transition">Transition</a>, or the current value of the property at the moment the <a href="qml-qtquick-behavior.html">Behavior</a> is triggered.</p> <p><b>See also </b><a href="qtquick-statesanimations-animations.html">Animation and Transitions in Qt Quick</a>.</p> </div></div><!-- @@@from --> <br/> <!-- $$$to --> <div class="qmlitem"><div class="qmlproto"> <div class="table"><table class="qmlname"> <tr valign="top" class="odd" id="to-prop"> <td class="tblQmlPropNode"><p> <a name="to-prop"></a><span class="name">to</span> : <span class="type">color</span></p></td></tr> </table></div> </div><div class="qmldoc"><p>This property holds the color value at which the animation should end.</p> <p>If the <a href="qtquick-animation-example.html#coloranimation">ColorAnimation</a> is defined within a <a href="qmlexampletoggleswitch.html#transition">Transition</a> or <a href="qml-qtquick-behavior.html">Behavior</a>, this value defaults to the value defined in the end state of the <a href="qmlexampletoggleswitch.html#transition">Transition</a>, or the value of the property change that triggered the <a href="qml-qtquick-behavior.html">Behavior</a>.</p> <p><b>See also </b><a href="qtquick-statesanimations-animations.html">Animation and Transitions in Qt Quick</a>.</p> </div></div><!-- @@@to --> <br/> </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>