<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Content.qml Example File | Qt Multimedia 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="qtmultimedia-index.html">Qt Multimedia</a></td><td ><a href="qtmultimedia-multimedia-video-qmlvideo-example.html">QML Video Example</a></td><td >Content.qml Example File</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="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">Content.qml Example File</h1> <span class="subtitle">multimedia/video/qmlvideo/qml/qmlvideo/Content.qml</span> <!-- $$$multimedia/video/qmlvideo/qml/qmlvideo/Content.qml-description --> <div class="descr"> <a name="details"></a> <pre class="qml"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the Qt Mobility Components. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> import QtQuick 2.0 <span class="type">Rectangle</span> { <span class="name">id</span>: <span class="name">root</span> <span class="name">border</span>.color: <span class="string">"white"</span> <span class="name">border</span>.width: <span class="name">showBorder</span> ? <span class="number">1</span> : <span class="number">0</span> <span class="name">color</span>: <span class="string">"transparent"</span> property <span class="type">string</span> <span class="name">contentType</span> <span class="comment">// "camera" or "video"</span> property <span class="type">string</span> <span class="name">source</span> property <span class="type">real</span> <span class="name">volume</span> property <span class="type">bool</span> <span class="name">dummy</span>: <span class="number">false</span> property <span class="type">bool</span> <span class="name">autoStart</span>: <span class="number">true</span> property <span class="type">bool</span> <span class="name">started</span>: <span class="number">false</span> property <span class="type">bool</span> <span class="name">showFrameRate</span>: <span class="number">false</span> property <span class="type">bool</span> <span class="name">showBorder</span>: <span class="number">false</span> signal <span class="type">initialized</span> signal <span class="type">error</span> signal <span class="type">videoFramePainted</span> <span class="type">Loader</span> { <span class="name">id</span>: <span class="name">contentLoader</span> } <span class="type">Connections</span> { <span class="name">id</span>: <span class="name">framePaintedConnection</span> <span class="name">onFramePainted</span>: { <span class="keyword">if</span> (<span class="name">frameRateLoader</span>.<span class="name">item</span>) <span class="name">frameRateLoader</span>.<span class="name">item</span>.<span class="name">notify</span>() <span class="name">root</span>.<span class="name">videoFramePainted</span>() } <span class="name">ignoreUnknownSignals</span>: <span class="number">true</span> } <span class="type">Connections</span> { <span class="name">id</span>: <span class="name">errorConnection</span> <span class="name">onFatalError</span>: { <span class="name">console</span>.<span class="name">log</span>(<span class="string">"[qmlvideo] Content.onFatalError"</span>) <span class="name">stop</span>() <span class="name">root</span>.<span class="name">error</span>() } <span class="name">ignoreUnknownSignals</span>: <span class="number">true</span> } <span class="type">Loader</span> { <span class="name">id</span>: <span class="name">frameRateLoader</span> <span class="name">source</span>: <span class="name">root</span>.<span class="name">showFrameRate</span> ? <span class="string">"../frequencymonitor/FrequencyItem.qml"</span> : <span class="string">""</span> <span class="name">onLoaded</span>: { <span class="name">item</span>.<span class="name">parent</span> <span class="operator">=</span> <span class="name">root</span> <span class="name">item</span>.<span class="name">anchors</span>.<span class="name">top</span> <span class="operator">=</span> <span class="name">root</span>.<span class="name">top</span> <span class="name">item</span>.<span class="name">anchors</span>.<span class="name">right</span> <span class="operator">=</span> <span class="name">root</span>.<span class="name">right</span> <span class="name">item</span>.<span class="name">anchors</span>.<span class="name">margins</span> <span class="operator">=</span> <span class="number">10</span> } } <span class="name">onWidthChanged</span>: { <span class="keyword">if</span> (<span class="name">contentItem</span>()) <span class="name">contentItem</span>().<span class="name">width</span> <span class="operator">=</span> <span class="name">width</span> } <span class="name">onHeightChanged</span>: { <span class="keyword">if</span> (<span class="name">contentItem</span>()) <span class="name">contentItem</span>().<span class="name">height</span> <span class="operator">=</span> <span class="name">height</span> } <span class="keyword">function</span> <span class="name">initialize</span>() { <span class="keyword">if</span> (<span class="string">"video"</span> <span class="operator">==</span> <span class="name">contentType</span>) { <span class="name">contentLoader</span>.<span class="name">source</span> <span class="operator">=</span> <span class="string">"VideoItem.qml"</span> <span class="keyword">if</span> (<span class="name">Loader</span>.<span class="name">Error</span> <span class="operator">==</span> <span class="name">contentLoader</span>.<span class="name">status</span>) { <span class="name">contentLoader</span>.<span class="name">source</span> <span class="operator">=</span> <span class="string">"VideoDummy.qml"</span> <span class="name">dummy</span> <span class="operator">=</span> <span class="number">true</span> } <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">volume</span> <span class="operator">=</span> <span class="name">volume</span> } <span class="keyword">else</span> <span class="keyword">if</span> (<span class="string">"camera"</span> <span class="operator">==</span> <span class="name">contentType</span>) { <span class="name">contentLoader</span>.<span class="name">source</span> <span class="operator">=</span> <span class="string">"CameraItem.qml"</span> <span class="keyword">if</span> (<span class="name">Loader</span>.<span class="name">Error</span> <span class="operator">==</span> <span class="name">contentLoader</span>.<span class="name">status</span>) { <span class="name">contentLoader</span>.<span class="name">source</span> <span class="operator">=</span> <span class="string">"CameraDummy.qml"</span> <span class="name">dummy</span> <span class="operator">=</span> <span class="number">true</span> } } <span class="keyword">else</span> { <span class="name">console</span>.<span class="name">log</span>(<span class="string">"[qmlvideo] Content.initialize: error: invalid contentType"</span>) } <span class="keyword">if</span> (<span class="name">contentLoader</span>.<span class="name">item</span>) { <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">sizeChanged</span>.<span class="name">connect</span>(<span class="name">updateRootSize</span>) <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">parent</span> <span class="operator">=</span> <span class="name">root</span> <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">width</span> <span class="operator">=</span> <span class="name">root</span>.<span class="name">width</span> <span class="name">framePaintedConnection</span>.<span class="name">target</span> <span class="operator">=</span> <span class="name">contentLoader</span>.<span class="name">item</span> <span class="name">errorConnection</span>.<span class="name">target</span> <span class="operator">=</span> <span class="name">contentLoader</span>.<span class="name">item</span> <span class="keyword">if</span> (<span class="name">root</span>.<span class="name">autoStart</span>) <span class="name">root</span>.<span class="name">start</span>() } <span class="name">root</span>.<span class="name">initialized</span>() } <span class="keyword">function</span> <span class="name">start</span>() { <span class="keyword">if</span> (<span class="name">contentLoader</span>.<span class="name">item</span>) { <span class="keyword">if</span> (<span class="name">root</span>.<span class="name">contentType</span> <span class="operator">==</span> <span class="string">"video"</span>) <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">mediaSource</span> <span class="operator">=</span> <span class="name">root</span>.<span class="name">source</span> <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">start</span>() <span class="name">root</span>.<span class="name">started</span> <span class="operator">=</span> <span class="number">true</span> } } <span class="keyword">function</span> <span class="name">stop</span>() { <span class="keyword">if</span> (<span class="name">contentLoader</span>.<span class="name">item</span>) { <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">stop</span>() <span class="keyword">if</span> (<span class="name">root</span>.<span class="name">contentType</span> <span class="operator">==</span> <span class="string">"video"</span>) <span class="name">contentLoader</span>.<span class="name">item</span>.<span class="name">mediaSource</span> <span class="operator">=</span> <span class="string">""</span> <span class="name">root</span>.<span class="name">started</span> <span class="operator">=</span> <span class="number">false</span> } } <span class="keyword">function</span> <span class="name">contentItem</span>() { <span class="keyword">return</span> <span class="name">contentLoader</span>.<span class="name">item</span> } <span class="keyword">function</span> <span class="name">updateRootSize</span>() { <span class="name">root</span>.<span class="name">height</span> <span class="operator">=</span> <span class="name">contentItem</span>().<span class="name">height</span> } } </pre> </div> <!-- @@@multimedia/video/qmlvideo/qml/qmlvideo/Content.qml --> </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>