<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!-- qgraphicsvideoitem.cpp --> <title>QGraphicsVideoItem Class | Qt Multimedia 5.12.2</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 5.12</td><td ><a href="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-modules.html">C++ Classes</a></td><td >QGraphicsVideoItem</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtmultimedia-index.html">Qt 5.12.2 Reference Documentation</a></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="#public-functions">Public Functions</a></li> <li class="level1"><a href="#reimplemented-public-functions">Reimplemented Public Functions</a></li> <li class="level1"><a href="#signals">Signals</a></li> <li class="level1"><a href="#static-public-members">Static Public Members</a></li> <li class="level1"><a href="#protected-variables">Protected Variables</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">QGraphicsVideoItem Class</h1> <!-- $$$QGraphicsVideoItem-brief --> <p>The <a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> class provides a graphics item which display video produced by a <a href="qmediaobject.html">QMediaObject</a>. <a href="#details">More...</a></p> <!-- @@@QGraphicsVideoItem --> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign"> <span class="preprocessor">#include <QGraphicsVideoItem></span> </td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += multimediawidgets</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qmediabindableinterface.html">QMediaBindableInterface</a> and </td></tr></table></div><ul> <li><a href="qgraphicsvideoitem-members.html">List of all members, including inherited members</a></li> </ul> <a name="properties"></a> <h2 id="properties">Properties</h2> <div class="table"><table class="propsummary"> <tr><td class="topAlign"><ul> <li class="fn"><b><a href="qgraphicsvideoitem.html#aspectRatioMode-prop">aspectRatioMode</a></b> : Qt::AspectRatioMode</li> <li class="fn"><b><a href="qgraphicsvideoitem.html#mediaObject-prop">mediaObject</a></b> : QMediaObject* const</li> <li class="fn"><b><a href="qgraphicsvideoitem.html#nativeSize-prop">nativeSize</a></b> : const QSizeF</li> </ul></td><td class="topAlign"><ul> <li class="fn"><b><a href="qgraphicsvideoitem.html#offset-prop">offset</a></b> : QPointF</li> <li class="fn"><b><a href="qgraphicsvideoitem.html#size-prop">size</a></b> : QSizeF</li> </ul> </td></tr> </table></div> <a name="public-functions"></a> <h2 id="public-functions">Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#QGraphicsVideoItem">QGraphicsVideoItem</a></b>(QGraphicsItem *<i>parent</i> = nullptr)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#dtor.QGraphicsVideoItem">~QGraphicsVideoItem</a></b>()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Qt::AspectRatioMode </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#aspectRatioMode-prop">aspectRatioMode</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QSizeF </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#nativeSize-prop">nativeSize</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QPointF </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#offset-prop">offset</a></b>() const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#aspectRatioMode-prop">setAspectRatioMode</a></b>(Qt::AspectRatioMode <i>mode</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#offset-prop">setOffset</a></b>(const QPointF &<i>offset</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#size-prop">setSize</a></b>(const QSizeF &<i>size</i>)</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> QSizeF </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#size-prop">size</a></b>() const</td></tr> </table></div> <a name="reimplemented-public-functions"></a> <h2 id="reimplemented-public-functions">Reimplemented Public Functions</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> virtual QRectF </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#boundingRect">boundingRect</a></b>() const override</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual QMediaObject *</td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#mediaObject-prop">mediaObject</a></b>() const override</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#paint">paint</a></b>(QPainter *<i>painter</i>, const QStyleOptionGraphicsItem *<i>option</i>, QWidget *<i>widget</i> = nullptr) override</td></tr> </table></div> <ul> <li class="fn">1 public function inherited from <a href="qmediabindableinterface.html#public-functions">QMediaBindableInterface</a></li> </ul> <a name="signals"></a> <h2 id="signals">Signals</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#nativeSize-prop">nativeSizeChanged</a></b>(const QSizeF &<i>size</i>)</td></tr> </table></div> <a name="static-public-members"></a> <h2 id="static-public-members">Static Public Members</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> const QMetaObject </td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#staticMetaObject-var">staticMetaObject</a></b></td></tr> </table></div> <a name="protected-variables"></a> <h2 id="protected-variables">Protected Variables</h2> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> QGraphicsVideoItemPrivate *</td><td class="memItemRight bottomAlign"><b><a href="qgraphicsvideoitem.html#d_ptr-var">d_ptr</a></b></td></tr> </table></div> <h3>Additional Inherited Members</h3> <ul> <li class="fn">1 protected function inherited from <a href="qmediabindableinterface.html#protected-functions">QMediaBindableInterface</a></li> </ul> <a name="details"></a> <!-- $$$QGraphicsVideoItem-description --> <div class="descr"> <h2 id="details">Detailed Description</h2> <p>The <a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> class provides a graphics item which display video produced by a <a href="qmediaobject.html">QMediaObject</a>.</p> <p>Attaching a <a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> to a <a href="qmediaobject.html">QMediaObject</a> allows it to display the video or image output of that media object. A <a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> is attached to a media object by passing a pointer to the <a href="qmediaobject.html">QMediaObject</a> to the <a href="qmediabindableinterface.html#setMediaObject">setMediaObject</a>() function.</p> <pre class="cpp"> player <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qmediaplayer.html">QMediaPlayer</a></span>(<span class="keyword">this</span>); <span class="type"><a href="qgraphicsvideoitem.html#QGraphicsVideoItem">QGraphicsVideoItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgraphicsvideoitem.html#QGraphicsVideoItem">QGraphicsVideoItem</a></span>; player<span class="operator">-</span><span class="operator">></span>setVideoOutput(item); graphicsView<span class="operator">-</span><span class="operator">></span>scene()<span class="operator">-</span><span class="operator">></span>addItem(item); graphicsView<span class="operator">-</span><span class="operator">></span>show(); player<span class="operator">-</span><span class="operator">></span>setMedia(<span class="type">QUrl</span>(<span class="string">"http://example.com/myclip4.ogv"</span>)); player<span class="operator">-</span><span class="operator">></span>play(); </pre> <p><b>Note</b>: Only a single display output can be attached to a media object at one time.</p> </div> <p><b>See also </b><a href="qmediaobject.html">QMediaObject</a>, <a href="qmediaplayer.html">QMediaPlayer</a>, and <a href="qvideowidget.html">QVideoWidget</a>.</p> <!-- @@@QGraphicsVideoItem --> <div class="prop"> <h2>Property Documentation</h2> <!-- $$$aspectRatioMode-prop$$$aspectRatioMode$$$setAspectRatioModeQt::AspectRatioMode --> <h3 class="fn" id="aspectRatioMode-prop"><a name="aspectRatioMode-prop"></a><span class="name">aspectRatioMode</span> : <span class="type">Qt::AspectRatioMode</span></h3> <p>how a video is scaled to fit the graphics item's size.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> Qt::AspectRatioMode </td><td class="memItemRight bottomAlign"><span class="name"><b>aspectRatioMode</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setAspectRatioMode</b></span>(Qt::AspectRatioMode <i>mode</i>)</td></tr> </table></div> <!-- @@@aspectRatioMode --> <!-- $$$mediaObject-prop$$$mediaObject --> <h3 class="fn" id="mediaObject-prop"><a name="mediaObject-prop"></a><span class="name">mediaObject</span> : <span class="type"><a href="qmediaobject.html">QMediaObject</a></span>* const</h3> <p>This property holds the media object which provides the video displayed by a graphics item.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> virtual QMediaObject *</td><td class="memItemRight bottomAlign"><span class="name"><b>mediaObject</b></span>() const override</td></tr> </table></div> <!-- @@@mediaObject --> <!-- $$$nativeSize-prop$$$nativeSize$$$nativeSizeChangedconstQSizeF& --> <h3 class="fn" id="nativeSize-prop"><a name="nativeSize-prop"></a><span class="name">nativeSize</span> : const <span class="type">QSizeF</span></h3> <p>This property holds the native size of the video.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QSizeF </td><td class="memItemRight bottomAlign"><span class="name"><b>nativeSize</b></span>() const</td></tr> </table></div> <p><b>Notifier signal:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>nativeSizeChanged</b></span>(const QSizeF &<i>size</i>)</td></tr> </table></div> <!-- @@@nativeSize --> <!-- $$$offset-prop$$$offset$$$setOffsetconstQPointF& --> <h3 class="fn" id="offset-prop"><a name="offset-prop"></a><span class="name">offset</span> : <span class="type">QPointF</span></h3> <p>This property holds the video item's offset.</p> <p><a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> will draw video using the offset for its top left corner.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QPointF </td><td class="memItemRight bottomAlign"><span class="name"><b>offset</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setOffset</b></span>(const QPointF &<i>offset</i>)</td></tr> </table></div> <!-- @@@offset --> <!-- $$$size-prop$$$size$$$setSizeconstQSizeF& --> <h3 class="fn" id="size-prop"><a name="size-prop"></a><span class="name">size</span> : <span class="type">QSizeF</span></h3> <p>This property holds the video item's size.</p> <p><a href="qgraphicsvideoitem.html">QGraphicsVideoItem</a> will draw video scaled to fit size according to its fillMode.</p> <p><b>Access functions:</b></p> <div class="table"><table class="alignedsummary"> <tr><td class="memItemLeft topAlign rightAlign"> QSizeF </td><td class="memItemRight bottomAlign"><span class="name"><b>size</b></span>() const</td></tr> <tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b>setSize</b></span>(const QSizeF &<i>size</i>)</td></tr> </table></div> <!-- @@@size --> </div> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$QGraphicsVideoItem[overload1]$$$QGraphicsVideoItemQGraphicsItem* --> <h3 class="fn" id="QGraphicsVideoItem"><a name="QGraphicsVideoItem"></a>QGraphicsVideoItem::<span class="name">QGraphicsVideoItem</span>(<span class="type">QGraphicsItem</span> *<i>parent</i> = nullptr)</h3> <p>Constructs a graphics item that displays video.</p> <p>The <i>parent</i> is passed to QGraphicsItem.</p> <!-- @@@QGraphicsVideoItem --> <!-- $$$~QGraphicsVideoItem[overload1]$$$~QGraphicsVideoItem --> <h3 class="fn" id="dtor.QGraphicsVideoItem"><a name="dtor.QGraphicsVideoItem"></a><code>[virtual] </code>QGraphicsVideoItem::<span class="name">~QGraphicsVideoItem</span>()</h3> <p>Destroys a video graphics item.</p> <!-- @@@~QGraphicsVideoItem --> <!-- $$$boundingRect[overload1]$$$boundingRect --> <h3 class="fn" id="boundingRect"><a name="boundingRect"></a><code>[override virtual] </code><span class="type">QRectF</span> QGraphicsVideoItem::<span class="name">boundingRect</span>() const</h3> <!-- @@@boundingRect --> <!-- $$$paint[overload1]$$$paintQPainter*constQStyleOptionGraphicsItem*QWidget* --> <h3 class="fn" id="paint"><a name="paint"></a><code>[override virtual] </code><span class="type">void</span> QGraphicsVideoItem::<span class="name">paint</span>(<span class="type">QPainter</span> *<i>painter</i>, const <span class="type">QStyleOptionGraphicsItem</span> *<i>option</i>, <span class="type">QWidget</span> *<i>widget</i> = nullptr)</h3> <!-- @@@paint --> </div> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 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>