40 lines
938 B
JavaScript
40 lines
938 B
JavaScript
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/** 克隆对象 */
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export async function cloneObjects(objects = []) {
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const arrs = []
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for (const obj of objects) {
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const clonedObj = await new Promise((resolve, reject) => {
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obj.clone((v) => {
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v.set({
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left: obj.left,
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top: obj.top,
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width: obj.width,
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height: obj.height,
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scaleX: obj.scaleX,
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scaleY: obj.scaleY,
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})
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resolve(v)
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})
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})
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arrs.push(clonedObj)
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}
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return arrs
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}
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/** 获取组合对象边界 */
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export async function getObjectsBoundingBox(objects = []) {
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const box1 = { x: Infinity, y: Infinity }
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const box2 = { x: -Infinity, y: -Infinity }
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objects.forEach(obj => {
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box1.x = Math.min(box1.x, obj.left)
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box1.y = Math.min(box1.y, obj.top)
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box2.x = Math.max(box2.x, obj.left + obj.width * obj.scaleX)
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box2.y = Math.max(box2.y, obj.top + obj.height * obj.scaleY)
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})
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return {
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left: box1.x,
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top: box1.y,
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width: box2.x - box1.x,
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height: box2.y - box1.y,
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}
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}
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