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<h1 class="title">audioengine.qml Example File</h1>
<span class="subtitle">multimedia/audioengine/qml/audioengine.qml</span>
<!-- $$$multimedia/audioengine/qml/audioengine.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml">
<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.
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** 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.
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import QtAudioEngine 1.0
import QtQuick 2.0
import "content"
<span class="type">Rectangle</span> {
<span class="name">color</span>:<span class="string">"white"</span>
<span class="name">id</span>: <span class="name">root</span>
<span class="name">width</span>: <span class="number">300</span>
<span class="name">height</span>: <span class="number">500</span>
property <span class="type">int</span> <span class="name">radius</span> : <span class="number">100</span>
property <span class="type">real</span> <span class="name">twoPi</span> : <span class="name">Math</span>.<span class="name">PI</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">PI</span>
<span class="type">MyAudioEngine</span> {
<span class="name">id</span>:<span class="name">audioEngine</span>
<span class="name">listener</span>.position : <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="name">observer</span>.<span class="name">x</span>, <span class="name">observer</span>.<span class="name">y</span>, <span class="number">0</span>);
}
<span class="type">Item</span> {
<span class="name">id</span>: <span class="name">circle</span>
<span class="name">x</span>: <span class="name">root</span>.<span class="name">width</span> <span class="operator">/</span> <span class="number">2</span>
<span class="name">y</span>: <span class="name">root</span>.<span class="name">height</span> <span class="operator">/</span> <span class="number">2</span>
property <span class="type">real</span> <span class="name">percent</span>: <span class="number">0</span>
SequentialAnimation on <span class="name">percent</span> {
<span class="name">id</span>: <span class="name">circleAnim1</span>
<span class="name">loops</span>: <span class="name">Animation</span>.<span class="name">Infinite</span>
<span class="name">running</span>: <span class="number">true</span>
<span class="type">NumberAnimation</span> {
<span class="name">duration</span>: <span class="number">12000</span>
<span class="name">from</span>: <span class="number">0</span>
<span class="name">to</span>: <span class="number">1</span>
}
}
}
<span class="type">Item</span> {
<span class="name">id</span>: <span class="name">holder</span>
<span class="name">x</span>: <span class="name">circle</span>.<span class="name">x</span> <span class="operator">-</span> <span class="name">Math</span>.<span class="name">sin</span>(<span class="name">circle</span>.<span class="name">percent</span> <span class="operator">*</span> <span class="name">root</span>.<span class="name">twoPi</span>) <span class="operator">*</span> <span class="name">root</span>.<span class="name">radius</span> <span class="operator">-</span> <span class="number">50</span>
<span class="name">y</span>: <span class="name">circle</span>.<span class="name">y</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">cos</span>(<span class="name">circle</span>.<span class="name">percent</span> <span class="operator">*</span> <span class="name">root</span>.<span class="name">twoPi</span>) <span class="operator">*</span> <span class="name">root</span>.<span class="name">radius</span> <span class="operator">+</span> <span class="number">50</span>
}
<span class="type">Rectangle</span> {
<span class="name">color</span>:<span class="string">"green"</span>
<span class="name">id</span>: <span class="name">observer</span>
<span class="name">width</span>: <span class="number">16</span>
<span class="name">height</span>: <span class="number">16</span>
<span class="name">x</span>: <span class="name">circle</span>.<span class="name">x</span> <span class="operator">-</span> <span class="name">width</span> <span class="operator">/</span> <span class="number">2</span>
<span class="name">y</span>: <span class="name">circle</span>.<span class="name">y</span> <span class="operator">-</span> <span class="name">height</span> <span class="operator">/</span> <span class="number">2</span>
}
<span class="type">Rectangle</span> {
<span class="name">color</span>:<span class="string">"red"</span>
<span class="name">id</span>: <span class="name">starship</span>
<span class="name">width</span>: <span class="number">32</span>
<span class="name">height</span>: <span class="number">32</span>
<span class="name">x</span>: <span class="name">holder</span>.<span class="name">x</span> <span class="operator">-</span> <span class="name">width</span> <span class="operator">/</span> <span class="number">2</span>
<span class="name">y</span>: <span class="name">holder</span>.<span class="name">y</span> <span class="operator">-</span> <span class="name">height</span> <span class="operator">/</span> <span class="number">2</span>
}
<span class="type">MouseArea</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">onClicked</span>: {
<span class="name">audioEngine</span>.<span class="name">sounds</span>[<span class="string">"effects"</span>].<span class="name">play</span>(<span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="name">holder</span>.<span class="name">x</span>, <span class="name">holder</span>.<span class="name">y</span>, <span class="number">0</span>));
}
}
<span class="type"><a href="qml-qtaudioengine-soundinstance.html">SoundInstance</a></span> {
<span class="name">id</span>: <span class="name">shipSound</span>
<span class="name">engine</span>:<span class="name">audioEngine</span>
<span class="name">sound</span>:<span class="string">"shipengine"</span>
<span class="name">position</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="name">holder</span>.<span class="name">x</span>, <span class="name">holder</span>.<span class="name">y</span>, <span class="number">0</span>)
<span class="name">direction</span>: {
var <span class="name">a</span> = (<span class="name">starship</span>.<span class="name">rotation</span> <span class="operator">/</span> <span class="number">360</span>) <span class="operator">*</span> <span class="name">root</span>.<span class="name">twoPi</span>;
<span class="keyword">return</span> <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="name">Math</span>.<span class="name">sin</span>(<span class="name">a</span>), -<span class="name">Math</span>.<span class="name">cos</span>(<span class="name">a</span>), <span class="number">0</span>);
}
<span class="name">velocity</span>: {
var <span class="name">speed</span> = <span class="name">root</span>.<span class="name">twoPi</span> <span class="operator">*</span> <span class="name">root</span>.<span class="name">radius</span> <span class="operator">/</span> <span class="number">4</span>;
<span class="keyword">return</span> <span class="name">shipSound</span>.<span class="name">direction</span>.<span class="name">times</span>(<span class="name">speed</span>);
}
<span class="name">Component</span>.onCompleted: <span class="name">shipSound</span>.<span class="name">play</span>()
}
<span class="comment">//Category Volume Control</span>
<span class="type">Rectangle</span> {
property <span class="type">variant</span> <span class="name">volumeCtrl</span>: <span class="name">audioEngine</span>.<span class="name">categories</span>[<span class="string">"sfx"</span>];
<span class="name">id</span>: <span class="name">volumeBar</span>
<span class="name">x</span>: <span class="number">10</span>
<span class="name">y</span>: <span class="number">10</span>
<span class="name">width</span>: <span class="number">280</span>
<span class="name">height</span>: <span class="number">22</span>
<span class="name">color</span>: <span class="string">"darkgray"</span>
<span class="type">Rectangle</span> {
<span class="name">id</span>: <span class="name">volumeTracker</span>
<span class="name">x</span>: <span class="number">0</span>
<span class="name">y</span>: <span class="number">0</span>
<span class="name">width</span>: <span class="name">volumeBar</span>.<span class="name">volumeCtrl</span>.<span class="name">volume</span> <span class="operator">*</span> <span class="name">parent</span>.<span class="name">width</span>;
<span class="name">height</span>: <span class="name">parent</span>.<span class="name">height</span>
<span class="name">color</span>: <span class="string">"lightgreen"</span>
}
<span class="type">Text</span> {
<span class="name">text</span>: <span class="string">" volume:"</span> <span class="operator">+</span> <span class="name">Math</span>.<span class="name">round</span>(<span class="name">volumeBar</span>.<span class="name">volumeCtrl</span>.<span class="name">volume</span> <span class="operator">*</span> <span class="number">100</span>) <span class="operator">+</span><span class="string">"%"</span>;
<span class="name">font</span>.pointSize: <span class="number">16</span>;
<span class="name">font</span>.italic: <span class="number">true</span>;
<span class="name">color</span>: <span class="string">"black"</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>
}
<span class="type">MouseArea</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
property <span class="type">bool</span> <span class="name">m</span>:<span class="number">false</span>
<span class="name">onPressed</span>: {
<span class="name">m</span> <span class="operator">=</span> <span class="number">true</span>;
<span class="name">updateVolume</span>(<span class="name">mouse</span>);
}
<span class="name">onReleased</span>: {
<span class="name">m</span> <span class="operator">=</span> <span class="number">false</span>;
}
<span class="name">onPositionChanged</span>: {
<span class="keyword">if</span> (<span class="name">m</span>) {
<span class="name">updateVolume</span>(<span class="name">mouse</span>);
}
}
<span class="keyword">function</span> <span class="name">updateVolume</span>(<span class="name">mouse</span>) {
<span class="name">volumeBar</span>.<span class="name">volumeCtrl</span>.<span class="name">volume</span> <span class="operator">=</span> <span class="name">Math</span>.<span class="name">min</span>(<span class="number">1</span>, <span class="name">Math</span>.<span class="name">max</span>(<span class="number">0</span>, <span class="name">mouse</span>.<span class="name">x</span> <span class="operator">/</span> (<span class="name">volumeBar</span>.<span class="name">width</span> <span class="operator">-</span> <span class="number">1</span>)));
}
}
}
<span class="comment">//Information display</span>
<span class="type">Item</span> {
<span class="name">x</span>:<span class="number">10</span>
<span class="name">y</span>:<span class="number">32</span>
<span class="type">Text</span> {
<span class="name">text</span>: <span class="string">" [live instances] = "</span> <span class="operator">+</span> <span class="name">audioEngine</span>.<span class="name">liveInstances</span>;
<span class="name">font</span>.pointSize: <span class="number">14</span>;
<span class="name">font</span>.italic: <span class="number">true</span>;
<span class="name">color</span>: <span class="string">"black"</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>
}
}
<span class="type">Item</span> {
<span class="name">x</span>:<span class="number">10</span>
<span class="name">y</span>:<span class="number">60</span>
<span class="type">Text</span> {
<span class="name">text</span>: <span class="string">" [loading]="</span> <span class="operator">+</span> (<span class="name">audioEngine</span>.<span class="name">loading</span> ? <span class="string">"true"</span> : <span class="string">"false"</span>);
<span class="name">font</span>.pointSize: <span class="number">16</span>;
<span class="name">font</span>.italic: <span class="number">true</span>;
<span class="name">color</span>: <span class="string">"black"</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>
}
}
}
</pre>
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<!-- @@@multimedia/audioengine/qml/audioengine.qml -->
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