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('pixelate'),
method: 'pixelate',
tileWidth: 10,
tileHeight: 10,
offsetX: 0,
offsetY: 0,
});Create the target entity
const piccy = scrawl.makePicture({
name: name('image'),
asset: 'iris',
dimensions: ['100%', '100%'],
copyDimensions: ['100%', '100%'],
filters: [name('pixelate')],
});Function to display frames-per-second data, and other information relevant to the demo
const report = reportSpeed('#reportmessage', function () {
return `
Tile dimensions - width: ${dom.tile_width.value}px, height: ${dom.tile_height.value}px
Tile offset offset - x: ${dom.offset_x.value}px, y: ${dom.offset_y.value}px
Opacity: ${dom.opacity.value}`;
});Create the Display cycle animation
scrawl.makeRender({
name: name('animation'),
target: canvas,
afterShow: report,
});const dom = scrawl.initializeDomInputs([
['input', 'tile_width', '10'],
['input', 'tile_height', '10'],
['input', 'offset_x', '0'],
['input', 'offset_y', '0'],
['input', 'opacity', '1'],
['select', 'includeRed', 1],
['select', 'includeGreen', 1],
['select', 'includeBlue', 1],
['select', 'includeAlpha', 0],
]);Setup form observer functionality
scrawl.makeUpdater({
event: ['input', 'change'],
origin: '.controlItem',
target: myFilter,
useNativeListener: true,
preventDefault: true,
updates: {
tile_width: ['tileWidth', 'round'],
tile_height: ['tileHeight', 'round'],
offset_x: ['offsetX', 'round'],
offset_y: ['offsetY', 'round'],
includeRed: ['includeRed', 'boolean'],
includeGreen: ['includeGreen', 'boolean'],
includeBlue: ['includeBlue', 'boolean'],
includeAlpha: ['includeAlpha', 'boolean'],
opacity: ['opacity', 'float'],
},
});addImageDragAndDrop(scrawl, canvas, `#${namespace} .assets`, piccy);console.log(scrawl.library);