<?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>environment.h Example File | Qt Script</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="qtscript-index.html">Qt Script</a></td><td ><a href="qtscript-script-context2d-example.html">Context2D Example</a></td><td >environment.h Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtscript-index.html">Qt 5.12.6 Reference Documentation</a></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">environment.h Example File</h1> <span class="subtitle">script/context2d/environment.h</span> <!-- $$$script/context2d/environment.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2017 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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> <span class="preprocessor">#ifndef ENVIRONMENT_H</span> <span class="preprocessor">#define ENVIRONMENT_H</span> <span class="preprocessor">#include <qobject.h></span> <span class="preprocessor">#include <qlist.h></span> <span class="preprocessor">#include <qhash.h></span> <span class="preprocessor">#include <QTimerEvent></span> <span class="preprocessor">#include <QMouseEvent></span> <span class="preprocessor">#include <QKeyEvent></span> <span class="preprocessor">#include <QScriptEngine></span> <span class="preprocessor">#include <QScriptable></span> <span class="keyword">class</span> QContext2DCanvas; <span class="keyword">class</span> Environment : <span class="keyword">public</span> <span class="type">QObject</span> { Q_OBJECT Q_PROPERTY(<span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> document READ document) <span class="keyword">public</span>: Environment(<span class="type">QObject</span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>); <span class="operator">~</span>Environment(); <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> document() <span class="keyword">const</span>; <span class="type">void</span> addCanvas(QContext2DCanvas <span class="operator">*</span>canvas); QContext2DCanvas <span class="operator">*</span>canvasByName(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>name) <span class="keyword">const</span>; <span class="type">QList</span><span class="operator"><</span>QContext2DCanvas<span class="operator">*</span><span class="operator">></span> canvases() <span class="keyword">const</span>; <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> evaluate(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>code<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>fileName <span class="operator">=</span> <span class="type">QString</span>()); <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> toWrapper(<span class="type">QObject</span> <span class="operator">*</span>object); <span class="type">void</span> handleEvent(QContext2DCanvas <span class="operator">*</span>canvas<span class="operator">,</span> <span class="type">QMouseEvent</span> <span class="operator">*</span>e); <span class="type">void</span> handleEvent(QContext2DCanvas <span class="operator">*</span>canvas<span class="operator">,</span> <span class="type">QKeyEvent</span> <span class="operator">*</span>e); <span class="type">void</span> reset(); <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>engine() <span class="keyword">const</span>; bool hasIntervalTimers() <span class="keyword">const</span>; <span class="type">void</span> triggerTimers(); <span class="keyword">public</span> <span class="keyword">slots</span>: <span class="type">int</span> setInterval(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>expression<span class="operator">,</span> <span class="type">int</span> delay); <span class="type">void</span> clearInterval(<span class="type">int</span> timerId); <span class="type">int</span> setTimeout(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>expression<span class="operator">,</span> <span class="type">int</span> delay); <span class="type">void</span> clearTimeout(<span class="type">int</span> timerId); <span class="keyword">signals</span>: <span class="type">void</span> scriptError(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>error); <span class="keyword">protected</span>: <span class="type">void</span> timerEvent(<span class="type">QTimerEvent</span> <span class="operator">*</span>event); <span class="keyword">private</span>: <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> eventHandler(QContext2DCanvas <span class="operator">*</span>canvas<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>type<span class="operator">,</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">*</span>who); <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> newFakeDomEvent(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>type<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>target); <span class="type">void</span> maybeEmitScriptError(); <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>m_engine; <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> m_originalGlobalObject; <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> m_document; <span class="type">QList</span><span class="operator"><</span>QContext2DCanvas<span class="operator">*</span><span class="operator">></span> m_canvases; <span class="type">QHash</span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">></span> m_intervalHash; <span class="type">QHash</span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">></span> m_timeoutHash; }; <span class="keyword">class</span> Document : <span class="keyword">public</span> <span class="type">QObject</span> { Q_OBJECT <span class="keyword">public</span>: Document(Environment <span class="operator">*</span>env); <span class="operator">~</span>Document(); <span class="keyword">public</span> <span class="keyword">slots</span>: <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> getElementById(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>id) <span class="keyword">const</span>; <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> getElementsByTagName(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>name) <span class="keyword">const</span>; <span class="comment">// EventTarget</span> <span class="type">void</span> addEventListener(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>type<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>listener<span class="operator">,</span> bool useCapture); }; <span class="keyword">class</span> CanvasGradientPrototype : <span class="keyword">public</span> <span class="type">QObject</span><span class="operator">,</span> <span class="keyword">public</span> <span class="type"><a href="qscriptable.html">QScriptable</a></span> { Q_OBJECT <span class="keyword">protected</span>: CanvasGradientPrototype(<span class="type">QObject</span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>); <span class="keyword">public</span>: <span class="keyword">static</span> <span class="type">void</span> setup(<span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>engine); <span class="keyword">public</span> <span class="keyword">slots</span>: <span class="type">void</span> addColorStop(<span class="type">qreal</span> offset<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>color); }; <span class="preprocessor">#endif</span> </pre> </div> <!-- @@@script/context2d/environment.h --> </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>