CenTdemeern1
b408f66f9d
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15 lines
No EOL
650 B
TypeScript
15 lines
No EOL
650 B
TypeScript
export function resize(image: HTMLImageElement, width: number = 16, height: number = 16): string {
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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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canvas.hidden = true;
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document.body.appendChild(canvas);
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const ctx = canvas.getContext("2d");
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if (ctx === null) throw Error("Resize failed");
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const w = Math.min(image.width / image.height, 1) * width;
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const h = Math.min(image.height / image.width, 1) * height;
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ctx.drawImage(image, (width - w) / 2, (height - h) / 2, w, h);
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const url = canvas.toDataURL();
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document.body.removeChild(canvas);
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return url;
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} |