85 lines
2.5 KiB
HTML
85 lines
2.5 KiB
HTML
<!doctype html>
|
|
<html lang="en">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
|
|
<title>PIXI LabeledGraphics</title>
|
|
|
|
<link rel="stylesheet" href="../3rdparty/highlight/styles/default.css">
|
|
<link rel="stylesheet" href="../../css/doctest.css">
|
|
|
|
<script src="../3rdparty/highlight/highlight.pack.js"></script>
|
|
<script src="../3rdparty/all.js"></script>
|
|
|
|
<script src="../all.js"></script>
|
|
<script src="./all.js"></script>
|
|
</head>
|
|
<body onload="Doctest.run()">
|
|
<h1>LabeledGraphics</h1>
|
|
<p>
|
|
A labeled graphics extends the PIXI.Graphics class with an ensureLabel method that allows
|
|
to place and reuse labels, i.e. PIXI.Text objects. The labels are cached by a given key
|
|
and only rendered anew if necessary.
|
|
</p>
|
|
<p><a href="../../doc/out/LabeledGraphics.html">JavaScript API</a></p>
|
|
<p>Let's look at an example:</p><br />
|
|
<canvas id="canvas1" class="interactive"></canvas>
|
|
<p>
|
|
What you should see: A box with a label.
|
|
</p>
|
|
<script class="doctest">
|
|
const app = new PIXIApp({
|
|
view: canvas1,
|
|
width: 900,
|
|
height: 150
|
|
}).setup().run()
|
|
|
|
const labeledBox = new LabeledGraphics()
|
|
labeledBox.ensureLabel('key', 'This is a label in a box', { justify: 'top'})
|
|
labeledBox.beginFill(0x333333)
|
|
labeledBox.drawRect(0, 0, 300, 100)
|
|
labeledBox.endFill()
|
|
|
|
app.scene.addChild(labeledBox)
|
|
</script>
|
|
<h2>Zoomable Labels</h2>
|
|
<p>Labeled graphics can also be used to represent zoomable text columns in more complex layouts.
|
|
Use the mousewheel to zoom the following text column:
|
|
</p>
|
|
|
|
<canvas id="canvas2" class="interactive"></canvas>
|
|
<script class="doctest">
|
|
const app2 = new PIXIApp({
|
|
view: canvas2,
|
|
width: 900,
|
|
height: 150
|
|
}).setup().run()
|
|
|
|
const loremIpsum = `Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.
|
|
At vero eos et accusam et justo duo dolores et ea rebum.`
|
|
|
|
const column = new LabeledGraphics()
|
|
const text = column.ensureLabel('key', loremIpsum, { maxWidth: 250, zoomFonts: true, justify: 'top', align: 'align'})
|
|
column.beginFill(0x333333)
|
|
column.drawRect(0, 0, 900, 150)
|
|
column.endFill()
|
|
|
|
column.interactive = true
|
|
text.interactive = true
|
|
text.getLocalBounds()
|
|
|
|
text.on('zoom', (event) => {
|
|
let factor = 1.0 + event.wheelDelta / 1000
|
|
text.zoom(factor)
|
|
})
|
|
|
|
app2.view.addEventListener('mousewheel', (event) => {
|
|
text.emit('zoom', event)
|
|
event.preventDefault()
|
|
})
|
|
|
|
app2.scene.addChild(column)
|
|
</script>
|
|
|
|
</body>
|