<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qdeclarativeanimation.cpp --> <title>Qt 4.8: QML AnchorAnimation Element</title> <link rel="stylesheet" type="text/css" href="style/style.css" /> <script src="scripts/jquery.js" type="text/javascript"></script> <script src="scripts/functions.js" type="text/javascript"></script> <link rel="stylesheet" type="text/css" href="style/superfish.css" /> <link rel="stylesheet" type="text/css" href="style/narrow.css" /> <!--[if IE]> <meta name="MSSmartTagsPreventParsing" content="true"> <meta http-equiv="imagetoolbar" content="no"> <![endif]--> <!--[if lt IE 7]> <link rel="stylesheet" type="text/css" href="style/style_ie6.css"> <![endif]--> <!--[if IE 7]> <link rel="stylesheet" type="text/css" href="style/style_ie7.css"> <![endif]--> <!--[if IE 8]> <link rel="stylesheet" type="text/css" href="style/style_ie8.css"> <![endif]--> <script src="scripts/superfish.js" type="text/javascript"></script> <script src="scripts/narrow.js" type="text/javascript"></script> </head> <body class="" onload="CheckEmptyAndLoadList();"> <div class="header" id="qtdocheader"> <div class="content"> <div id="nav-logo"> <a href="index.html">Home</a></div> <a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a> <div id="narrowsearch"></div> <div id="nav-topright"> <ul> <li class="nav-topright-home"><a href="http://qt.digia.com/">Qt HOME</a></li> <li class="nav-topright-dev"><a href="http://qt-project.org/">DEV</a></li> <li class="nav-topright-doc nav-topright-doc-active"><a href="http://qt-project.org/doc/"> DOC</a></li> <li class="nav-topright-blog"><a href="http://blog.qt.digia.com/">BLOG</a></li> </ul> </div> <div id="shortCut"> <ul> <li class="shortCut-topleft-inactive"><span><a href="index.html">Qt 4.8</a></span></li> <li class="shortCut-topleft-active"><a href="http://qt-project.org/doc/">ALL VERSIONS </a></li> </ul> </div> <ul class="sf-menu" id="narrowmenu"> <li><a href="#">API Lookup</a> <ul> <li><a href="classes.html">Class index</a></li> <li><a href="functions.html">Function index</a></li> <li><a href="modules.html">Modules</a></li> <li><a href="namespaces.html">Namespaces</a></li> <li><a href="qtglobal.html">Global Declarations</a></li> <li><a href="qdeclarativeelements.html">QML elements</a></li> </ul> </li> <li><a href="#">Qt Topics</a> <ul> <li><a href="qt-basic-concepts.html">Programming with Qt</a></li> <li><a href="qtquick.html">Device UIs & Qt Quick</a></li> <li><a href="qt-gui-concepts.html">UI Design with Qt</a></li> <li><a href="supported-platforms.html">Supported Platforms</a></li> <li><a href="technology-apis.html">Qt and Key Technologies</a></li> <li><a href="best-practices.html">How-To's and Best Practices</a></li> </ul> </li> <li><a href="#">Examples</a> <ul> <li><a href="all-examples.html">Examples</a></li> <li><a href="tutorials.html">Tutorials</a></li> <li><a href="demos.html">Demos</a></li> <li><a href="qdeclarativeexamples.html">QML Examples</a></li> </ul> </li> </ul> </div> </div> <div class="wrapper"> <div class="hd"> <span></span> </div> <div class="bd group"> <div class="sidebar"> <div class="searchlabel"> Search index:</div> <div class="search" id="sidebarsearch"> <form id="qtdocsearch" action="" onsubmit="return false;"> <fieldset> <input type="text" name="searchstring" id="pageType" value="" /> <div id="resultdialog"> <a href="#" id="resultclose">Close</a> <p id="resultlinks" class="all"><a href="#" id="showallresults">All</a> | <a href="#" id="showapiresults">API</a> | <a href="#" id="showarticleresults">Articles</a> | <a href="#" id="showexampleresults">Examples</a></p> <p id="searchcount" class="all"><span id="resultcount"></span><span id="apicount"></span><span id="articlecount"></span><span id="examplecount"></span> results:</p> <ul id="resultlist" class="all"> </ul> </div> </fieldset> </form> </div> <div class="box first bottombar" id="lookup"> <h2 title="API Lookup"><span></span> API Lookup</h2> <div id="list001" class="list"> <ul id="ul001" > <li class="defaultLink"><a href="classes.html">Class index</a></li> <li class="defaultLink"><a href="functions.html">Function index</a></li> <li class="defaultLink"><a href="modules.html">Modules</a></li> <li class="defaultLink"><a href="namespaces.html">Namespaces</a></li> <li class="defaultLink"><a href="qtglobal.html">Global Declarations</a></li> <li class="defaultLink"><a href="qdeclarativeelements.html">QML elements</a></li> </ul> </div> </div> <div class="box bottombar" id="topics"> <h2 title="Qt Topics"><span></span> Qt Topics</h2> <div id="list002" class="list"> <ul id="ul002" > <li class="defaultLink"><a href="qt-basic-concepts.html">Programming with Qt</a></li> <li class="defaultLink"><a href="qtquick.html">Device UIs & Qt Quick</a></li> <li class="defaultLink"><a href="qt-gui-concepts.html">UI Design with Qt</a></li> <li class="defaultLink"><a href="supported-platforms.html">Supported Platforms</a></li> <li class="defaultLink"><a href="technology-apis.html">Qt and Key Technologies</a></li> <li class="defaultLink"><a href="best-practices.html">How-To's and Best Practices</a></li> </ul> </div> </div> <div class="box" id="examples"> <h2 title="Examples"><span></span> Examples</h2> <div id="list003" class="list"> <ul id="ul003"> <li class="defaultLink"><a href="all-examples.html">Examples</a></li> <li class="defaultLink"><a href="tutorials.html">Tutorials</a></li> <li class="defaultLink"><a href="demos.html">Demos</a></li> <li class="defaultLink"><a href="qdeclarativeexamples.html">QML Examples</a></li> </ul> </div> </div> </div> <div class="wrap"> <div class="toolbar"> <div class="breadcrumb toolblock"> <ul> <li class="first"><a href="index.html">Home</a></li> <!-- Breadcrumbs go here --> <li><a href="qdeclarativeelements.html">QML Elements</a></li> <li>QML AnchorAnimation Element</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <p class="naviNextPrevious headerNavi"> </p><p/> <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> <h1 class="title">QML AnchorAnimation Element</h1> <span class="subtitle"></span> <!-- $$$AnchorAnimation-brief --> <p>The AnchorAnimation element animates changes in anchor values. <a href="#details">More...</a></p> <!-- @@@AnchorAnimation --> <p>Inherits <a href="qml-animation.html">Animation</a></p> <p>This element was introduced in Qt 4.7.</p> <ul> <li><a href="qml-anchoranimation-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2>Properties</h2> <ul> <li class="fn"><b><b><a href="qml-anchoranimation.html#duration-prop">duration</a></b></b> : int</li> <li class="fn"><b><b><a href="qml-anchoranimation.html#easing.amplitude-prop">easing.amplitude</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-anchoranimation.html#easing.overshoot-prop">easing.overshoot</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-anchoranimation.html#easing.period-prop">easing.period</a></b></b> : real</li> <li class="fn"><b><b><a href="qml-anchoranimation.html#easing.type-prop">easing.type</a></b></b> : enumeration</li> <li class="fn"><b><b><a href="qml-anchoranimation.html#targets-prop">targets</a></b></b> : list<Item></li> </ul> <!-- $$$AnchorAnimation-description --> <a name="details"></a> <h2>Detailed Description</h2> <p>AnchorAnimation is used to animate an anchor change.</p> <p>In the following snippet we animate the addition of a right anchor to a <a href="qml-rectangle.html">Rectangle</a>:</p> <pre class="qml"> import QtQuick 1.0 <span class="type"><a href="qml-item.html">Item</a></span> { <span class="name">id</span>: <span class="name">container</span> <span class="name">width</span>: <span class="number">200</span>; <span class="name">height</span>: <span class="number">200</span> <span class="type"><a href="qml-rectangle.html">Rectangle</a></span> { <span class="name">id</span>: <span class="name">myRect</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> } <span class="name">states</span>: <span class="name">State</span> { <span class="name">name</span>: <span class="string">"reanchored"</span> <span class="type"><a href="qml-anchorchanges.html">AnchorChanges</a></span> { <span class="name">target</span>: <span class="name">myRect</span>; <span class="name">anchors</span>.right: <span class="name">container</span>.<span class="name">right</span> } } <span class="name">transitions</span>: <span class="name">Transition</span> { <span class="comment">// smoothly reanchor myRect and move into new position</span> <span class="type">AnchorAnimation</span> { <span class="name">duration</span>: <span class="number">1000</span> } } <span class="name">Component</span>.onCompleted: <span class="name">container</span>.<span class="name">state</span> <span class="operator">=</span> <span class="string">"reanchored"</span> }</pre> <p>For convenience, when an AnchorAnimation is used in a <a href="qml-transition.html">Transition</a>, it will animate any <a href="qml-anchorchanges.html">AnchorChanges</a> that have occurred during the state change. This can be overridden by setting a specific target item using the <a href="qmake-variable-reference.html#target">target</a> property.</p> <p>Like any other animation element, an AnchorAnimation can be applied in a number of ways, including transitions, behaviors and property value sources. The <a href="qdeclarativeanimation.html">QML Animation and Transitions</a> documentation shows a variety of methods for creating animations.</p> <p><b>See also </b><a href="qdeclarativeanimation.html">QML Animation and Transitions</a> and <a href="qml-anchorchanges.html">AnchorChanges</a>.</p> <!-- @@@AnchorAnimation --> <h2>Property Documentation</h2> <!-- $$$duration --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="duration-prop"></a><span class="name">duration</span> : <span class="type"><a href="qml-int.html">int</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the duration of the animation, in milliseconds.</p> <p>The default value is 250.</p> </div></div><!-- @@@duration --> <br/> <!-- $$$easing.type --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="easing.type-prop"></a><span class="name">easing.type</span> : <span class="type"><a href="qml-enumeration.html">enumeration</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="easing.amplitude-prop"></a><span class="name">easing.amplitude</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="easing.overshoot-prop"></a><span class="name">easing.overshoot</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="easing.period-prop"></a><span class="name">easing.period</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr></table></div><div class="qmldoc"><p>To specify an easing curve you need to specify at least the type. For some curves you can also specify amplitude, period and/or overshoot. The default easing curve is Linear.</p> <pre class="qml"> <span class="type"><a href="qml-anchoranimation.html">AnchorAnimation</a></span> { <span class="name">easing</span>.type: <span class="name">Easing</span>.<span class="name">InOutQuad</span> }</pre> <p>See the <a href="qml-propertyanimation.html#easing.type-prop">PropertyAnimation::easing.type</a> documentation for information about the different types of easing curves.</p> </div></div><!-- @@@easing.type --> <br/> <!-- $$$targets --> <div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="targets-prop"></a><span class="qmlreadonly">read-only</span><span class="name">targets</span> : <span class="type"><a href="qml-list.html">list</a></span><<span class="type"><a href="qml-item.html">Item</a></span>></p></td></tr></table></div><div class="qmldoc"><p>The items to reanchor.</p> <p>If no targets are specified all <a href="qml-anchorchanges.html">AnchorChanges</a> will be animated by the <a href="qml-anchoranimation.html">AnchorAnimation</a>.</p> </div></div><!-- @@@targets --> <br/> <p class="naviNextPrevious footerNavi"> </p> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> 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.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. <a title="Privacy Policy" href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p> </div> <script src="scripts/functions.js" type="text/javascript"></script> </body> </html>