332 lines
20 KiB
HTML
332 lines
20 KiB
HTML
<?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 Animation 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 Animation 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">
|
|
<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="#methods">Methods</a></li>
|
|
<li class="level1"><a href="#details">Detailed Description</a></li>
|
|
</ul>
|
|
</div>
|
|
<h1 class="title">QML Animation Element</h1>
|
|
<span class="subtitle"></span>
|
|
<!-- $$$Animation-brief -->
|
|
<p>The Animation element is the base of all QML animations. <a href="#details">More...</a></p>
|
|
<!-- @@@Animation -->
|
|
<p>Inherited by <a href="qml-anchoranimation.html">AnchorAnimation</a>, <a href="qml-parallelanimation.html">ParallelAnimation</a>, <a href="qml-parentanimation.html">ParentAnimation</a>, <a href="qml-pauseanimation.html">PauseAnimation</a>, <a href="qml-propertyaction.html">PropertyAction</a>, <a href="qml-propertyanimation.html">PropertyAnimation</a>, <a href="qml-scriptaction.html">ScriptAction</a>, and <a href="qml-sequentialanimation.html">SequentialAnimation</a>.</p>
|
|
<p>This element was introduced in Qt 4.7.</p>
|
|
<ul>
|
|
<li><a href="qml-animation-members.html">List of all members, including inherited members</a></li>
|
|
</ul>
|
|
<a name="properties"></a>
|
|
<h2>Properties</h2>
|
|
<ul>
|
|
<li class="fn"><b><b><a href="qml-animation.html#alwaysRunToEnd-prop">alwaysRunToEnd</a></b></b> : bool</li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#loops-prop">loops</a></b></b> : int</li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#paused-prop">paused</a></b></b> : bool</li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#running-prop">running</a></b></b> : bool</li>
|
|
</ul>
|
|
<a name="methods"></a>
|
|
<h2>Methods</h2>
|
|
<ul>
|
|
<li class="fn"><b><b><a href="qml-animation.html#complete-method">complete</a></b></b></li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#pause-method">pause</a></b></b></li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#restart-method">restart</a></b></b></li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#resume-method">resume</a></b></b></li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#start-method">start</a></b></b></li>
|
|
<li class="fn"><b><b><a href="qml-animation.html#stop-method">stop</a></b></b></li>
|
|
</ul>
|
|
<!-- $$$Animation-description -->
|
|
<a name="details"></a>
|
|
<h2>Detailed Description</h2>
|
|
<p>The Animation element cannot be used directly in a QML file. It exists to provide a set of common properties and methods, available across all the other animation types that inherit from it. Attempting to use the Animation element directly will result in an error.</p>
|
|
<!-- @@@Animation -->
|
|
<h2>Property Documentation</h2>
|
|
<!-- $$$alwaysRunToEnd -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="alwaysRunToEnd-prop"></a><span class="name">alwaysRunToEnd</span> : <span class="type"><a href="qml-bool.html">bool</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds whether the animation should run to completion when it is stopped.</p>
|
|
<p>If this true the animation will complete its current iteration when it is stopped - either by setting the <tt>running</tt> property to false, or by calling the <tt>stop()</tt> method. The <tt>complete()</tt> method is not effected by this value.</p>
|
|
<p>This behavior is most useful when the <tt>repeat</tt> property is set, as the animation will finish playing normally but not restart.</p>
|
|
<p>By default, the alwaysRunToEnd property is not set.</p>
|
|
<p><b>Note:</b> alwaysRunToEnd has no effect on animations in a Transition.</p>
|
|
</div></div><!-- @@@alwaysRunToEnd -->
|
|
<br/>
|
|
<!-- $$$loops -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="loops-prop"></a><span class="name">loops</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 number of times the animation should play.</p>
|
|
<p>By default, <tt>loops</tt> is 1: the animation will play through once and then stop.</p>
|
|
<p>If set to Animation.Infinite, the animation will continuously repeat until it is explicitly stopped - either by setting the <tt>running</tt> property to false, or by calling the <tt>stop()</tt> method.</p>
|
|
<p>In the following example, the rectangle will spin indefinitely.</p>
|
|
<pre class="cpp"> Rectangle {
|
|
width: <span class="number">100</span>; height: <span class="number">100</span>; color: <span class="string">"green"</span>
|
|
RotationAnimation on rotation {
|
|
loops: Animation<span class="operator">.</span>Infinite
|
|
from: <span class="number">0</span>
|
|
to: <span class="number">360</span>
|
|
}
|
|
}</pre>
|
|
</div></div><!-- @@@loops -->
|
|
<br/>
|
|
<!-- $$$paused -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="paused-prop"></a><span class="name">paused</span> : <span class="type"><a href="qml-bool.html">bool</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds whether the animation is currently paused.</p>
|
|
<p>The <tt>paused</tt> property can be set to declaratively control whether or not an animation is paused.</p>
|
|
<p>Animations can also be paused and resumed imperatively from JavaScript using the <tt>pause()</tt> and <tt>resume()</tt> methods.</p>
|
|
<p>By default, animations are not paused.</p>
|
|
</div></div><!-- @@@paused -->
|
|
<br/>
|
|
<!-- $$$running -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="running-prop"></a><span class="name">running</span> : <span class="type"><a href="qml-bool.html">bool</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds whether the animation is currently running.</p>
|
|
<p>The <tt>running</tt> property can be set to declaratively control whether or not an animation is running. The following example will animate a rectangle whenever the <a href="qml-mousearea.html">MouseArea</a> is pressed.</p>
|
|
<pre class="cpp"> Rectangle {
|
|
width: <span class="number">100</span>; height: <span class="number">100</span>
|
|
NumberAnimation on x {
|
|
running: myMouse<span class="operator">.</span>pressed
|
|
from: <span class="number">0</span>; to: <span class="number">100</span>
|
|
}
|
|
MouseArea { id: myMouse }
|
|
}</pre>
|
|
<p>Likewise, the <tt>running</tt> property can be read to determine if the animation is running. In the following example the text element will indicate whether or not the animation is running.</p>
|
|
<pre class="cpp"> NumberAnimation { id: myAnimation }
|
|
Text { text: myAnimation<span class="operator">.</span>running <span class="operator">?</span> <span class="string">"Animation is running"</span> : <span class="string">"Animation is not running"</span> }</pre>
|
|
<p>Animations can also be started and stopped imperatively from JavaScript using the <tt>start()</tt> and <tt>stop()</tt> methods.</p>
|
|
<p>By default, animations are not running. Though, when the animations are assigned to properties, as property value sources using the <i>on</i> syntax, they are set to running by default.</p>
|
|
</div></div><!-- @@@running -->
|
|
<br/>
|
|
<h2>Method Documentation</h2>
|
|
<!-- $$$complete -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="complete-method"></a>Animation::<span class="name">complete</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Stops the animation, jumping to the final property values.</p>
|
|
<p>If the animation is not running, calling this method has no effect. The <tt>running</tt> property will be false following a call to <tt>complete()</tt>.</p>
|
|
<p>Unlike <tt>stop()</tt>, <tt>complete()</tt> immediately fast-forwards the animation to its end. In the following example,</p>
|
|
<pre class="cpp"> Rectangle {
|
|
NumberAnimation on x { from: <span class="number">0</span>; to: <span class="number">100</span>; duration: <span class="number">500</span> }
|
|
}</pre>
|
|
<p>calling <tt>stop()</tt> at time 250ms will result in the <tt>x</tt> property having a value of 50, while calling <tt>complete()</tt> will set the <tt>x</tt> property to 100, exactly as though the animation had played the whole way through.</p>
|
|
</div></div><!-- @@@complete -->
|
|
<br/>
|
|
<!-- $$$pause -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="pause-method"></a>Animation::<span class="name">pause</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Pauses the animation.</p>
|
|
<p>If the animation is already paused, calling this method has no effect. The <tt>paused</tt> property will be true following a call to <tt>pause()</tt>.</p>
|
|
</div></div><!-- @@@pause -->
|
|
<br/>
|
|
<!-- $$$restart -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="restart-method"></a>Animation::<span class="name">restart</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Restarts the animation.</p>
|
|
<p>This is a convenience method, and is equivalent to calling <tt>stop()</tt> and then <tt>start()</tt>.</p>
|
|
</div></div><!-- @@@restart -->
|
|
<br/>
|
|
<!-- $$$resume -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="resume-method"></a>Animation::<span class="name">resume</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Resumes a paused animation.</p>
|
|
<p>If the animation is not paused, calling this method has no effect. The <tt>paused</tt> property will be false following a call to <tt>resume()</tt>.</p>
|
|
</div></div><!-- @@@resume -->
|
|
<br/>
|
|
<!-- $$$start -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="start-method"></a>Animation::<span class="name">start</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Starts the animation.</p>
|
|
<p>If the animation is already running, calling this method has no effect. The <tt>running</tt> property will be true following a call to <tt>start()</tt>.</p>
|
|
</div></div><!-- @@@start -->
|
|
<br/>
|
|
<!-- $$$stop -->
|
|
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlFuncNode"><p><a name="stop-method"></a>Animation::<span class="name">stop</span> ()</p></td></tr></table></div><div class="qmldoc"><p>Stops the animation.</p>
|
|
<p>If the animation is not running, calling this method has no effect. The <tt>running</tt> property will be false following a call to <tt>stop()</tt>.</p>
|
|
<p>Normally <tt>stop()</tt> stops the animation immediately, and the animation has no further influence on property values. In this example animation</p>
|
|
<pre class="cpp"> Rectangle {
|
|
NumberAnimation on x { from: <span class="number">0</span>; to: <span class="number">100</span>; duration: <span class="number">500</span> }
|
|
}</pre>
|
|
<p>was stopped at time 250ms, the <tt>x</tt> property will have a value of 50.</p>
|
|
<p>However, if the <tt>alwaysRunToEnd</tt> property is set, the animation will continue running until it completes and then stop. The <tt>running</tt> property will still become false immediately.</p>
|
|
</div></div><!-- @@@stop -->
|
|
<br/>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="ft">
|
|
<span></span>
|
|
</div>
|
|
</div>
|
|
<div class="footer">
|
|
<p>
|
|
<acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd.
|
|
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>
|
|
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. <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>
|