/**  克隆对象 */
export async function cloneObjects(objects = []) {
	const arrs = []
	for (const obj of objects) {
		const clonedObj = await new Promise((resolve, reject) => {
			obj.clone((v) => {
				v.set({
					left: obj.left,
					top: obj.top,
					width: obj.width,
					height: obj.height,
					scaleX: obj.scaleX,
					scaleY: obj.scaleY,
				})
				resolve(v)
			})
		})
		arrs.push(clonedObj)
	}
	return arrs
}


/**  获取组合对象边界 */
export async function getObjectsBoundingBox(objects = []) {
	const box1 = { x: Infinity, y: Infinity }
	const box2 = { x: -Infinity, y: -Infinity }
	objects.forEach(obj => {
		box1.x = Math.min(box1.x, obj.left)
		box1.y = Math.min(box1.y, obj.top)
		box2.x = Math.max(box2.x, obj.left + obj.width * obj.scaleX)
		box2.y = Math.max(box2.y, obj.top + obj.height * obj.scaleY)
	})
	return {
		left: box1.x,
		top: box1.y,
		width: box2.x - box1.x,
		height: box2.y - box1.y,
	}
}