157 lines
5.8 KiB
HTML
157 lines
5.8 KiB
HTML
<!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>PIXI Stylus</title>
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<link rel="stylesheet" href="../3rdparty/highlight/styles/default.css" />
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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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<script src="../../dist/iwmlib.3rdparty.js"></script>
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<script src="../../dist/iwmlib.js"></script>
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<script src="../../dist/iwmlib.pixi.js"></script>
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</head>
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<body onload="Doctest.run()">
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<h1><a href="../index.html">lib.</a><a href="index.html">pixi.</a>Stylus</h1>
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<p>
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The Stylus class extends the PIXI.Graphics class and allows to draw into a graphics object. Select the pen
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tool in the following example app and draw into the canvas.
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</p>
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<canvas id="canvas" style="border: 1px solid gray; width: 640px; height: 480px" class="interactive"></canvas>
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<p>What you should see: A blank sytlus canvas.</p>
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<script class="doctest">
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class StylusApp extends PIXIApp {
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sceneFactory() {
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return new Stylus(this.renderer)
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}
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setup() {
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let buttonColor = 0x666666
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super.setup()
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this.tools = new ButtonGroup({
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type: 'checkbox',
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margin: 0,
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x: 16,
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y: 16,
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fill: buttonColor,
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buttons: [
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{
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icon: 'edit',
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iconColorActive: 0xffff00,
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action: (event, button) => this.toggleEditMode()
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},
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{
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icon: 'undo',
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action: (event, button) => this.undo(button)
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},
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{
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icon: 'redo',
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action: (event, button) => this.redo(button)
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},
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{
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icon: 'delete',
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action: (event, button) => this.clear(button)
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}
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]
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})
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this.scene.addChild(this.tools)
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let defaults = {
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icon: 'brightness_1',
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action: (event, button) => this.selectColor(button),
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fillAlpha: 0,
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strokeAlpha: 0,
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fillActiveAlpha: 0,
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strokeActiveAlpha: 0
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}
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this.palette = new ButtonGroup({
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type: 'radio',
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x: 200,
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y: 16,
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margin: 0,
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strokeAlpha: 0,
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fill: buttonColor,
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buttons: [
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Object.assign({}, defaults, {
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iconColor: 0x111111,
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iconColorActive: 0x111111
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}), // tooltip: "Black",
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Object.assign({}, defaults, {
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iconColor: 0xffff00,
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iconColorActive: 0xffff00
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}), // tooltip: "Yellow",
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Object.assign({}, defaults, {
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iconColor: 0x00ff00,
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iconColorActive: 0x00ff00
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}), // tooltip: "Green",
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Object.assign({}, defaults, {
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iconColor: 0xff00ff,
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iconColorActive: 0xff00ff
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}) // tooltip: "Violet",
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]
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})
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this.scene.addChild(this.palette)
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this.scene.interactive = false
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}
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toggleEditMode() {
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this.scene.interactive = !this.scene.interactive
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console.log('this.scene.interactive')
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}
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selectColor(button) {
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this.scene.color = button.opts.iconColor
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}
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undo(button) {
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this.scene.undo()
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setTimeout(() => {
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button.active = false
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}, 200)
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}
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redo(button) {
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this.scene.redo()
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setTimeout(() => {
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button.active = false
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}, 200)
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}
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clear(button) {
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this.scene.clearAll()
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setTimeout(() => {
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button.active = false
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}, 200)
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}
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}
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const app = new StylusApp({
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view: canvas,
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width: 640,
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height: 480,
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autoResize: false
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})
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window.app = app
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app.setup()
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app.run()
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</script>
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<h2>References</h2>
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<ul>
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<li><a href="https://mattdesl.svbtle.com/drawing-lines-is-hard">Drawing Lines is Hard</a></li>
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<li>
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<a href="http://perfectionkills.com/exploring-canvas-drawing-techniques/"
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>Exploring Canvas Drawing Techniques</a
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>
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</li>
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<li><a href="https://github.com/mattdesl/polyline-normals">Polyline Normals</a></li>
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</ul>
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</body>
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</html>
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