38 lines
900 B
JavaScript
38 lines
900 B
JavaScript
// import { MAX_IMAGE_SIZE } from '../js/constants/d2Constants.js';
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const MAX_IMAGE_SIZE = 100;
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export function prepareImage(image) {
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let { width, height } = image;
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const maxImageSize = Math.max(width, height);
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if (maxImageSize > MAX_IMAGE_SIZE) {
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const scale = MAX_IMAGE_SIZE / maxImageSize;
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width = Math.round(width * scale);
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height = Math.round(height * scale);
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}
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const canvas = document.createElement('canvas');
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canvas.width = width;
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canvas.height = height;
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const context = canvas.getContext('2d');
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context.fillStyle = 'white';
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context.fillRect(0, 0, width, height);
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context.drawImage(image, 0, 0, width, height);
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return canvas;
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}
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export function loadImage(src) {
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return new Promise((resolve, reject) => {
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const image = new Image();
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image.onload = () => {
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resolve(image);
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};
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image.onerror = reject;
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image.src = src;
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});
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}
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