scrawl-canvas
Version:
Version 8.9.4 - 19 Nov 2022
105 lines (89 loc) • 3.34 kB
HTML
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Demo Canvas 028</title>
<link href="css/normalize.css" rel="stylesheet" />
<link href="css/tests.css" rel="stylesheet" />
<style type="text/css">
canvas {
background-color: lemonchiffon;
width: 100%;
height: 100%;
}
.image-hold {
height: 0;
display: none;
}
#display-controls {
margin-top: 1rem;
margin-bottom: 1rem;
font-family: monospace;
}
</style>
</head>
<body>
<h1><a href="index.html">Scrawl-canvas v8</a> - Canvas test 028</h1>
<h2>Image magnifier; test some composite operations</h2>
<h3>This canvas is resizable - drag the bottom right corner to change its dimensions.</h3>
<div id="display-controls">
<p>Select composite for background:
<select class="control-item" id="composite">
<option value="source-over">source-over</option>
<option value="source-in">source-in</option>
<option value="source-out">source-out</option>
<option value="source-atop">source-atop</option>
<option value="destination-over">destination-over</option>
<option value="destination-in">destination-in</option>
<option value="destination-out">destination-out</option>
<option value="destination-atop">destination-atop</option>
<option value="copy">copy</option>
<option value="xor">xor</option>
<option value="difference">difference</option>
<option value="exclusion">exclusion</option>
<option value="multiply">multiply</option>
<option value="screen">screen</option>
<option value="overlay">overlay</option>
<option value="lighter">lighter</option>
<option value="lighten">lighten</option>
<option value="darken">darken</option>
<option value="hard-light">hard-light</option>
<option value="soft-light">soft-light</option>
<option value="color-dodge">color-dodge</option>
<option value="color-burn">color-burn</option>
<option value="hue">hue</option>
<option value="saturation">saturation</option>
<option value="color">color</option>
<option value="luminosity">luminosity</option>
</select>
</p>
</div>
<div class="canvas-container">
<canvas
id="mycanvas"
data-scrawl-canvas
data-is-responsive="true"
data-base-width="800"
data-base-height="400"
data-fit="cover"
></canvas>
</div>
<p id="reportmessage"></p>
<div class="testinfo">
<h4>Test purpose</h4>
<ul>
<li>Compose a display combining two images, using a variety of globalCompositeOperation settings</li>
<li>Check to see that different composite operations result in different displays</li>
</ul>
<p><b>Touch test:</b> should work as expected</p>
<p><a href="../docs/demo/canvas-028.html">Annotated code</a></p>
</div>
<div class="image-hold">
<img id="big-angels" class="angels" src="img/angelsOriginal-2400.png">
<img id="small-angels" class="angels" src="img/angelsOriginal-800.png">
</div>
<script src="canvas-028.js" type="module"></script>
</body>
</html>