import * as scrawl from '../source/scrawl.js';
import { reportSpeed, addImageDragAndDrop } from './utilities.js';import * as scrawl from '../source/scrawl.js';
import { reportSpeed, addImageDragAndDrop } from './utilities.js';const canvas = scrawl.findCanvas('mycanvas');Namespacing boilerplate
const namespace = canvas.name;
const name = (n) => `${namespace}-${n}`;Import the initial image used by the Picture entity
scrawl.importDomImage('.flowers');Create the filter
const myFilter = scrawl.makeFilter({
name: name('channels'),
method: 'channels',
red: 1.45,
green: 1.1,
blue: 0,
});Create the target entity
const piccy = scrawl.makePicture({
name: name('image'),
asset: 'iris',
dimensions: ['100%', '100%'],
copyDimensions: ['100%', '100%'],
filters: [name('channels')],
});Function to display frames-per-second data, and other information relevant to the demo
const report = reportSpeed('#reportmessage', function () {
return `
Red: ${dom.red.value}
Green: ${dom.green.value}
Blue: ${dom.blue.value}
Alpha: ${dom.alpha.value}
Opacity: ${dom.opacity.value}`;
});Create the Display cycle animation
scrawl.makeRender({
name: "demo-animation",
target: canvas,
afterShow: report,
});const dom = scrawl.initializeDomInputs([
['input', 'red', '1.45'],
['input', 'green', '1.1'],
['input', 'blue', '0'],
['input', 'alpha', '1'],
['input', 'opacity', '1'],
]);Setup form observer functionality
scrawl.makeUpdater({
event: ['input', 'change'],
origin: '.controlItem',
target: myFilter,
useNativeListener: true,
preventDefault: true,
updates: {
red: ['red', 'float'],
green: ['green', 'float'],
blue: ['blue', 'float'],
alpha: ['alpha', 'float'],
opacity: ['opacity', 'float'],
},
});addImageDragAndDrop(scrawl, canvas, `#${namespace} .assets`, piccy);console.log(scrawl.library);