2019-03-21 09:57:27 +01:00
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<!doctype html>
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>Scatter Doctest</title>
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2019-05-22 16:03:19 +02:00
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<link rel="stylesheet" href="./3rdparty/highlight/styles/default.css">
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2019-03-21 09:57:27 +01:00
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<link rel="stylesheet" href="../css/doctest.css">
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<script src="./3rdparty/highlight/highlight.pack.js"></script>
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2019-05-23 11:21:46 +02:00
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<script src="../dist/iwmlib.3rdparty.js"></script>
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2019-05-22 16:03:19 +02:00
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<script src="../dist/iwmlib.js"></script>
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2019-03-21 09:57:27 +01:00
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<script>
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function drawPolygons() {
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debugCanvas.width = main.getBoundingClientRect().width
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let context = debugCanvas.getContext('2d')
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context.clearRect(0, 0, debugCanvas.width, debugCanvas.height)
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let stage = scatterContainer.polygon
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stage.draw(context, { stroke: '#FF0000'})
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for(let scatter of scatterContainer.scatter.values()) {
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let polygon = scatter.polygon
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polygon.draw(context, { stroke: '#FF0000'})
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}
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}
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function animatePolygons() {
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requestAnimationFrame((dt) => {
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drawPolygons()
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animatePolygons()
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})
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}
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</script>
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</head>
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<body onload="Doctest.run()" >
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<h1>
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Scatter
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</h1>
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<p>
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Scatter objects are UI elements that can be rotated, scaled or moved around,
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which typically leads to "scattered" layouts. Scatters come in two flavours:
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DOM Scatters are working with arbitrary DOM elements, wheras PIXI Scatter
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work with PIXI Containers and DisplayObjects within the PIXI scene graph. Here
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we describe the more basic DOM scatter.
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</p>
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<p>Let's look at an example.</p>
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<div id="main" class="grayBorder interactive" style="position: relative; width: 100%; height: 280px;">
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<!-- Note that we need to set draggable to false to avoid conflicts. The DOM elements
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must also be positioned absolutely. -->
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<img id="women" draggable="false" style="position: absolute;" src="examples/women.jpeg" />
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<img id="king" draggable="false" style="position: absolute;" src="examples/king.jpeg" />
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<canvas id="debugCanvas" height="280" style="z-index: 100000; pointer-events: none; position: absolute; border: 1px solid red;">
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Canvas not supported.
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</canvas>
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</div>
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<script class="doctest">
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let dx = 44
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let app = new App()
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let scatterContainer = new DOMScatterContainer(main)
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let angle = 0 // 15
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for(let key of ['women', 'king']) {
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let image = document.getElementById(key)
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// The DOMScatter needs initial width and height. Therefore we
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// define the scatter when the image size is known, i.e. after loading...
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image.onload = (e) => {
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let scatter = new DOMScatter(image, scatterContainer, {
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x: dx,
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y: 44,
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width: e.target.naturalWidth,
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height: e.target.naturalHeight,
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rotationDegrees: angle,
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throwVisibility: 88,
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minScale: 0.5,
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maxScale: 1.5})
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dx += 300
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angle = -angle
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}
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}
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app.run()
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animatePolygons()
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</script>
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</body>
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