JianMiau/SuperScrollView_2.X
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SuperScrollView_2.X/assets/super-layout.ts

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2022-01-13 09:27:08 +08:00
// /*
// * @Author: steveJobs
// * @Email: icipiqkm@gmail.com
// * @Date: 2021-8-1 01:15:04
// * @Last Modified by: steveJobs
// * @Last Modified time: 2021-8-1 14:35:43
// * @Description:
// */
// import { _decorator, Component, Node, ccenum, UITransform, SystemEventType, director, Vec3, EventHandler, instantiate, Prefab, Size, Vec2, size, ScrollView, PageView, PageViewIndicator } from 'cc';
// import { SuperScrollview } from './super-scrollview';
// const { ccclass, property, requireComponent } = _decorator;
// const EPSILON = 1e-5
// enum Type {
// HORIZONTAL = 0,
// VERTICAL = 1,
// }
// ccenum(Type)
// enum VerticalAxisDirection {
// TOP_TO_BOTTOM = 0,
// BOTTOM_TO_TOP = 1
// }
// ccenum(VerticalAxisDirection)
// enum HorizontalAxisDirection {
// LEFT_TO_RIGHT = 0,
// RIGHT_TO_LEFT = 1
// }
// ccenum(HorizontalAxisDirection)
// enum ScrollDirection {
// NONE = 0,
// HEADER = 1,
// FOOTER = 2,
// }
// enum IndexVerticalAxisDirection {
// TOP = 0,
// BOTTOM = 1,
// }
// ccenum(IndexVerticalAxisDirection)
// enum IndexHorizontalAxisDirection {
// LEFT = 0,
// RIGHT = 1
// }
// ccenum(IndexHorizontalAxisDirection)
// @ccclass('SuperLayout')
// @requireComponent(UITransform)
// export class SuperLayout extends Component {
// static VerticalAxisDirection = VerticalAxisDirection
// static HorizontalAxisDirection = HorizontalAxisDirection
// @property(SuperScrollview) scrollView!: SuperScrollview
// @property(UITransform) view!: UITransform
// @property(Prefab) prefab!: Prefab
// @property({ type: Type }) layoutType: Type = Type.VERTICAL
// @property({
// type: IndexVerticalAxisDirection,
// visible: function () { return (this as any).layoutType == Type.VERTICAL && !(this as any).autoCenter }
// }) indexVerticalAxisDirection = IndexVerticalAxisDirection.TOP
// @property({
// type: IndexHorizontalAxisDirection,
// visible: function () { return (this as any).layoutType == Type.HORIZONTAL && !(this as any).autoCenter }
// }) indexHorizontalAxisDirection = IndexHorizontalAxisDirection.LEFT
// @property({ type: VerticalAxisDirection }) verticalAxisDirection = VerticalAxisDirection.TOP_TO_BOTTOM
// @property({ type: HorizontalAxisDirection }) horizontalAxisDirection = HorizontalAxisDirection.LEFT_TO_RIGHT
// @property({ tooltip: "最小值=1，大于1就是Grid模式" }) groupItemTotal: number = 1
// @property({ tooltip: "决定最多创建Prefab的数量" }) multiple: number = 2
// @property({ tooltip: "顶部填充" }) paddingTop: number = 0
// @property({ tooltip: "底部填充" }) paddingBottom: number = 0
// @property({ tooltip: "左侧填充" }) paddingLeft: number = 0
// @property({ tooltip: "右侧填充" }) paddingRight: number = 0
// @property({ tooltip: "横轴间距" }) spacingX: number = 0
// @property({ tooltip: "纵轴间距" }) spacingY: number = 0
// @property({ tooltip: "计算缩放后的尺寸" }) affectedByScale: boolean = false
// @property({ tooltip: "开启翻页模式" }) isPageView: boolean = false
// @property({
// tooltip: "每个页面翻页时所需时间。单位：秒",
// visible: function () { return (this as any).isPageView }
// }) pageTurningSpeed = 0.3
// @property({
// type: PageViewIndicator,
// visible: function () { return (this as any).isPageView }
// }) indicator!: PageViewIndicator
// @property({
// slide: true,
// range: [0, 1, 0.01],
// tooltip: "滚动临界值，默认单位百分比，当拖拽超出该数值时，松开会自动滚动下一页，小于时则还原",
// visible: function () { return (this as any).isPageView }
// }) scrollThreshold = 0.5
// @property({
// tooltip: "快速滑动翻页临界值。当用户快速滑动时，会根据滑动开始和结束的距离与时间计算出一个速度值,该值与此临界值相比较，如果大于临界值，则进行自动翻页",
// visible: function () { return (this as any).isPageView }
// }) autoPageTurningThreshold = 100
// @property({
// type: EventHandler,
// visible: function () { return (this as any).isPageView }
// }) pageEvents: EventHandler[] = []
// @property({
// tooltip: "开启自动居中",
// visible: function () { return !(this as any).isPageView }
// }) autoCenter: boolean = false
// @property({
// tooltip: "自动居中的滚动时间",
// visible: function () { return (this as any).autoCenter }
// }) centerTime: number = 1
// @property({
// type: Node,
// tooltip: "自动居中的参考节点，如果为空、则默认选择View中心",
// visible: function () { return (this as any).autoCenter }
// }) centerNode!: Node
// @property({
// type: Vec2,
// tooltip: "自动居中时、Item的居中锚点",
// visible: function () { return (this as any).autoCenter }
// }) centerAnchor: Vec2 = new Vec2(.5, .5)
// @property({ tooltip: "上/左 无限循环" }) headerLoop: boolean = false
// @property({ tooltip: "下/右 无限循环" }) footerLoop: boolean = false
// @property(EventHandler) refreshItemEvents: EventHandler[] = []
// private stretchLock: {
// index?: number,
// timeInSecond?: number,
// boundary?: Vec3,
// reverse?: boolean,
// } = {}
// private _currPageIndex: number = 0
// get currPageIndex() {
// return this._currPageIndex
// }
// private _lastPageIndex: number = 0
// get lastPageIndex() {
// return this._lastPageIndex
// }
// private isRestart: boolean = false
// /** 当前滚动方向 */
// private scrollDirection: ScrollDirection = ScrollDirection.NONE
// /** 是否垂直滚动 */
// get vertical(): boolean { return this.layoutType == Type.VERTICAL }
// /** 是否水平滚动 */
// get horizontal(): boolean { return this.layoutType == Type.HORIZONTAL }
// get transform(): UITransform | null { return this.node._uiProps.uiTransformComp }
// /** View 可容纳的宽度 */
// get accommodWidth() {
// return this.view.width - this.paddingLeft - this.paddingRight
// }
// /** View 可容纳的高度 */
// get accommodHeight() {
// return this.view.height - this.paddingTop - this.paddingBottom
// }
// /** 头部的节点 */
// get header(): UITransform | null {
// if (this.node.children.length == 0) return null
// return this.node.children[0]._uiProps.uiTransformComp
// }
// /** 底部的节点 */
// get footer(): UITransform | null {
// if (this.node.children.length == 0) return null
// return this.node.children[this.node.children.length - 1]._uiProps.uiTransformComp
// }
// /** 头部索引 */
// get headerIndex(): number {
// if (!this.header) return -1
// let node: any = this.header.node
// return node["__index"]
// }
// /** 底部索引 */
// get footerIndex(): number {
// if (!this.footer) return -1
// let node: any = this.footer.node
// return node["__index"]
// }
// /** Item起始位置 */
// get viewStartPoint(): Vec3 {
// let pos = new Vec3()
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// pos.x = this.view.width * -0.5 + this.paddingLeft
// } else {
// pos.x = this.view.width * 0.5 - this.paddingRight
// }
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// pos.y = this.view.height * 0.5 - this.paddingTop
// } else {
// pos.y = this.view.height * -0.5 + this.paddingBottom
// }
// return pos
// }
// /** View 头部边界 */
// get viewHeaderBoundary(): number {
// return this.vertical ? this.view.height * 0.5 : this.view.width * -0.5
// }
// /** View 底部边界 */
// get viewFooterBoundary(): number {
// return this.vertical ? this.view.height * -0.5 : this.view.width * 0.5
// }
// /** 头部节点边界 */
// get headerBoundary(): number {
// if (!this.header) return 0
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// return this.node.position.y + this.getItemYMax(this.header) + this.paddingTop
// } else {
// return this.node.position.y + this.getItemYMin(this.header) - this.paddingBottom
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// return this.node.position.x + this.getItemXMin(this.header) - this.paddingLeft
// } else {
// return this.node.position.x + this.getItemXMax(this.header) + this.paddingRight
// }
// }
// }
// /** 底部节点边界 */
// get footerBoundary(): number {
// if (!this.footer) return 0
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// return this.node.position.y + this.getItemYMin(this.footer) - this.paddingBottom
// } else {
// return this.node.position.y + this.getItemYMax(this.footer) + this.paddingTop
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// return this.node.position.x + this.getItemXMax(this.footer) + this.paddingRight
// } else {
// return this.node.position.x + this.getItemXMin(this.footer) - this.paddingLeft
// }
// }
// }
// /** 自动居中节点头部边界 */
// get centerHeaderBoundary() {
// let key = this.vertical ? "y" : "x"
// var offset
// if (this.centerNode) {
// offset = this.viewHeaderBoundary - (this.centerNode.position as any)[key]
// } else {
// offset = this.viewHeaderBoundary - (this.view.node.position as any)[key]
// }
// if (this.vertical && this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM || this.horizontal && this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// return this.headerBoundary + offset
// } else {
// return this.footerBoundary + offset
// }
// }
// /** 自动居中节点底部边界 */
// get centerFooterBoundary() {
// let key = this.vertical ? "y" : "x"
// var offset
// if (this.centerNode) {
// offset = this.viewFooterBoundary - (this.centerNode.position as any)[key]
// } else {
// offset = this.viewFooterBoundary - (this.view.node.position as any)[key]
// }
// if (this.vertical && this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM || this.horizontal && this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// return this.footerBoundary + offset
// } else {
// return this.headerBoundary + offset
// }
// }
// /** 是否超出左侧边界 */
// get isOfLeftBoundary(): number {
// if (this.vertical) return 0
// if (this.autoCenter) {
// if (this.scrollDirection == ScrollDirection.HEADER) {
// return this.centerHeaderBoundary
// }
// return 0
// }
// if (this.headerLoop) {
// if (this.header) return 0
// return this.viewHeaderBoundary + this.node.position.x
// }
// if (!this.header || this.fixedItemWidth <= this.view.width) {
// return this.viewHeaderBoundary + this.node.position.x
// }
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (this.headerIndex == 0) {
// return this.headerBoundary
// }
// } else {
// if (this.footerIndex == this.itemTotal - 1) {
// return this.footerBoundary
// }
// }
// return 0
// }
// /** 是否超出顶部边界 */
// get isOfTopBoundary(): number {
// if (!this.vertical) return 0
// if (this.autoCenter) {
// if (this.scrollDirection == ScrollDirection.HEADER) {
// return this.centerHeaderBoundary
// }
// return 0
// }
// if (this.headerLoop) {
// if (this.header) return 0
// return this.viewHeaderBoundary + this.node.position.y
// }
// if (!this.header || this.fixedItemHeight <= this.view.height) {
// return this.viewHeaderBoundary + this.node.position.y
// }
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (this.headerIndex == 0) {
// return this.headerBoundary
// }
// } else {
// if (this.footerIndex == this.itemTotal - 1) {
// return this.footerBoundary
// }
// }
// return 0
// }
// /** 是否超出右侧边界 */
// get isOfRightBoundary(): number {
// if (this.vertical) return 0
// if (this.autoCenter) {
// if (this.scrollDirection == ScrollDirection.FOOTER) {
// return this.centerFooterBoundary
// }
// return 0
// }
// if (this.footerLoop) {
// if (this.footer) return 0
// return this.viewFooterBoundary + this.node.position.x
// }
// if (!this.footer || this.fixedItemWidth <= this.view.width) {
// return this.viewFooterBoundary + this.node.position.x
// }
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (this.footerIndex == this.itemTotal - 1) {
// return this.footerBoundary
// }
// } else {
// if (this.headerIndex == 0) {
// return this.headerBoundary
// }
// }
// return 0
// }
// /** 是否超出底部边界 */
// get isOfButtomBoundary(): number {
// if (!this.vertical) return 0
// if (this.autoCenter) {
// if (this.scrollDirection == ScrollDirection.FOOTER) {
// return this.centerFooterBoundary
// }
// return 0
// }
// if (this.footerLoop) {
// if (this.footer) return 0
// return this.viewFooterBoundary + this.node.position.y
// }
// if (!this.footer || this.fixedItemHeight <= this.view.height) {
// return this.viewFooterBoundary + this.node.position.y
// }
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (this.footerIndex == this.itemTotal - 1) {
// return this.footerBoundary
// }
// } else {
// if (this.headerIndex == 0) {
// return this.headerBoundary
// }
// }
// return 0
// }
// /** 从头部到底部的所有Item高度总和 */
// get fixedItemHeight(): number {
// if (!this.header) return 0
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// return Math.abs(this.getItemYMax(this.header)) + Math.abs(this.getItemYMin(this.footer))
// } else {
// return Math.abs(this.getItemYMin(this.header)) + Math.abs(this.getItemYMax(this.footer))
// }
// }
// /** 从头部到底部的所有Item宽度总和 */
// get fixedItemWidth(): number {
// if (!this.header) return 0
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// return Math.abs(this.getItemXMin(this.header)) + Math.abs(this.getItemXMax(this.footer))
// } else {
// return Math.abs(this.getItemXMax(this.header)) + Math.abs(this.getItemXMin(this.footer))
// }
// }
// /** 返回 header到 footer 之间的整体尺寸 如果Item数量不足以撑开View 则返回View尺寸 最小值是View尺寸 */
// get contentSize(): Size {
// if (this.node.children.length == 0) return this.view.contentSize
// let size = new Size(this.view.contentSize.width, this.view.contentSize.height)
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// size.height = this.headerBoundary + -this.footerBoundary
// } else {
// size.height = this.footerBoundary + -this.headerBoundary
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// size.width = this.footerBoundary + -this.headerBoundary
// } else {
// size.width = this.headerBoundary + -this.footerBoundary
// }
// }
// if (size.width < this.view.contentSize.width) {
// size.width = this.view.contentSize.width
// }
// if (size.height < this.view.contentSize.height) {
// size.height = this.view.contentSize.height
// }
// return size
// }
// private prevPos: Vec3 = new Vec3(0, 0, 0)
// private _maxPrefabTotal: number = 0
// /** 已被创建的Item数量 */
// get maxPrefabTotal(): number { return this._maxPrefabTotal }
// private currentCreateItemTotal: number = 0
// private _itemTotal: number = 0
// /** 数据长度 */
// get itemTotal(): number { return this._itemTotal }
// private gener!: Generator
// private _centerPosition!: Vec3
// /** 自动居中的参考位置 */
// get centerPosition(): Vec3 {
// if (!this._centerPosition) {
// this._centerPosition = new Vec3()
// if (this.autoCenter) {
// if (this.centerNode) {
// let worldPos = this.centerNode.parent?._uiProps.uiTransformComp?.convertToWorldSpaceAR(this.centerNode.position)!
// this._centerPosition = this.view.convertToNodeSpaceAR(worldPos)
// }
// } else {
// if (this.vertical) {
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.TOP) {
// this._centerPosition.y = this.viewHeaderBoundary
// } else {
// this._centerPosition.y = this.viewFooterBoundary
// }
// } else {
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.LEFT) {
// this._centerPosition.x = this.viewHeaderBoundary
// } else {
// this._centerPosition.x = this.viewFooterBoundary
// }
// }
// }
// }
// return this._centerPosition
// }
// onLoad() {
// this.transform?.setAnchorPoint(new Vec2(.5, .5))
// this.transform?.setContentSize(this.view.contentSize)
// this.node.setPosition(Vec3.ZERO)
// if (this.isPageView) this.autoCenter = false
// this.scrollView.view?.node.on(Node.EventType.SIZE_CHANGED, this.onViewSizeChange, this)
// Object.defineProperty(this.transform, "contentSize", { get: () => this.contentSize })
// Object.defineProperty(this.transform, "width", { get: () => this.contentSize.width })
// Object.defineProperty(this.transform, "height", { get: () => this.contentSize.height })
// }
// onEnable() {
// this.addEventListener()
// }
// onDisable() {
// this.removeEventListener()
// }
// /** 更新item数量 */
// total(count: number) {
// this.scrollView.canTouchMove = false
// this.currentCreateItemTotal = count
// this.createItems(count)
// let offset = count - this.itemTotal
// this._itemTotal = count
// this.refreshItems(offset)
// this.scrollView.release()
// if (this.indicator) {
// this.indicator.setPageView((this.scrollView as any));
// }
// if (this.autoCenter) {
// this.scrollToCenter()
// }
// this.scrollView.canTouchMove = true
// }
// /** 告知组件你的节点尺寸 */
// updateItemSize(node: Node, size: Size) {
// if (this.groupItemTotal > 1) return
// if (!node || !size) return
// (node as any)["__runtime_size"] = size
// this.onChangeChildSize(node._uiProps.uiTransformComp!)
// }
// /** 自动居中到最近Item */
// scrollToCenter() {
// this.soonFinish()
// }
// /** 滚动到头部 */
// scrollToHeader(timeInSecond?: number) {
// var headerOrFooter = 0
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// headerOrFooter = this.viewHeaderBoundary
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.BOTTOM) {
// headerOrFooter -= this.header?.height! + this.paddingTop + this.paddingBottom
// }
// } else {
// headerOrFooter = this.viewFooterBoundary
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.TOP) {
// headerOrFooter += this.header?.height! + this.paddingTop + this.paddingBottom
// }
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// headerOrFooter = this.viewHeaderBoundary
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.RIGHT) {
// headerOrFooter += this.header?.width! + this.paddingLeft + this.paddingRight
// }
// } else {
// headerOrFooter = this.viewFooterBoundary
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.LEFT) {
// headerOrFooter -= this.header?.width! + this.paddingLeft + this.paddingRight
// }
// }
// }
// this.scrollToIndex(0, timeInSecond, new Vec3(headerOrFooter, headerOrFooter))
// }
// /** 滚动到尾部 */
// scrollToFooter(timeInSecond?: number) {
// var headerOrFooter = 0
// if (this.vertical) {
// if (this.fixedItemHeight < this.view.height) return
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// headerOrFooter = this.viewFooterBoundary
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.BOTTOM) {
// headerOrFooter += this.footer?.height! + this.paddingTop + this.paddingBottom
// }
// } else {
// headerOrFooter = this.viewHeaderBoundary
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.TOP) {
// headerOrFooter -= this.footer?.height! + this.paddingTop + this.paddingBottom
// }
// }
// } else {
// if (this.fixedItemWidth < this.view.width) return
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// headerOrFooter = this.viewFooterBoundary
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.RIGHT) {
// headerOrFooter -= this.footer?.width! + this.paddingLeft + this.paddingRight
// }
// } else {
// headerOrFooter = this.viewHeaderBoundary
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.LEFT) {
// headerOrFooter += this.footer?.width! + this.paddingLeft + this.paddingRight
// }
// }
// }
// this.scrollToIndex(this.itemTotal - 1, timeInSecond, new Vec3(headerOrFooter, headerOrFooter), true)
// }
// private isNearFooter(index: number) {
// let nearFooter = false
// let flag = index > this.footerIndex && index < this.headerIndex
// if (flag) {
// let result = Math.abs(index - this.headerIndex) < Math.abs(index - this.footerIndex)
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// nearFooter = !result
// } else {
// nearFooter = result
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// nearFooter = !result
// } else {
// nearFooter = result
// }
// }
// } else if (index > this.footerIndex) {
// if (this.vertical) {
// nearFooter = this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM ? true : false
// } else {
// nearFooter = this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT ? true : false
// }
// } else if (index < this.headerIndex) {
// if (this.vertical) {
// nearFooter = this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM ? false : true
// } else {
// nearFooter = this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT ? false : true
// }
// }
// return nearFooter
// }
// private getFooterOffset(index: number) {
// let footerOffset = this.footerIndex % this.groupItemTotal
// let indexOffset = index % this.groupItemTotal
// return indexOffset - footerOffset + this.groupItemTotal
// }
// private getHeaderOffset(index: number) {
// let headerOffset = this.headerIndex % this.groupItemTotal
// let indexOffset = index % this.groupItemTotal
// return headerOffset - indexOffset + this.groupItemTotal
// }
// private offsetToHeader(index: number) {
// var offset = 0
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// offset = this.getHeaderOffset(index)
// } else {
// offset = this.getFooterOffset(index)
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// offset = this.getHeaderOffset(index)
// } else {
// offset = this.getFooterOffset(index)
// }
// }
// offset -= this.groupItemTotal
// for (let i = 0; i < offset; i++) {
// this.pushToHeader(true)
// }
// }
// private offsetToFooter(index: number) {
// var offset = 0
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// offset = this.getFooterOffset(index)
// } else {
// offset = this.getHeaderOffset(index)
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// offset = this.getFooterOffset(index)
// } else {
// offset = this.getHeaderOffset(index)
// }
// }
// offset -= this.groupItemTotal
// for (let i = 0; i < offset; i++) {
// this.pushToFooter(true)
// }
// }
// private resetIndexStartToEnd(index: number) {
// for (let i = 0; i < this.node.children.length; i++) {
// const child: any = this.node.children[i];
// child["__index"] = index
// index++
// if (this.headerLoop || this.footerLoop) {
// if (index >= this.itemTotal) {
// index = 0
// }
// }
// this.notifyRefreshItem(child)
// }
// }
// private resetIndexEndToStart(index: number) {
// for (let i = this.node.children.length - 1; i >= 0; i--) {
// const child: any = this.node.children[i];
// child["__index"] = index
// index--
// if (this.headerLoop || this.footerLoop) {
// if (index < 0) {
// index = this.itemTotal - 1
// }
// }
// this.notifyRefreshItem(child)
// }
// }
// /** 跳转到指定索引位置 */
// scrollToIndex(index: number, timeInSecond?: number, boundary?: Vec3, reverse: boolean = false) {
// if (isNaN(index) || index < 0 || index > this.itemTotal - 1) return
// this.scrollView.stopAutoScroll()
// if (this.isPageView) {
// this.scrollView.savePageIndex(index)
// }
// var child = this.node.children.find((item: any) => item["__index"] == index)
// var nearFooter = this.isNearFooter(index)
// this.stretchLock.index = index
// this.stretchLock.timeInSecond = timeInSecond
// this.stretchLock.boundary = boundary
// this.stretchLock.reverse = reverse
// if (!child) {
// var flag = this.vertical && this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM || !this.vertical && this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT
// if (nearFooter) {
// this.offsetToFooter(index)
// flag ? this.resetIndexEndToStart(index) : this.resetIndexStartToEnd(index)
// } else {
// this.offsetToHeader(index)
// flag ? this.resetIndexStartToEnd(index) : this.resetIndexEndToStart(index)
// }
// child = this.node.children.find((item: any) => item["__index"] == index)
// }
// if (!child) return
// let itemPos = child.getPosition().clone()
// if (!this.autoCenter) {
// if (this.vertical) {
// if (this.indexVerticalAxisDirection == IndexVerticalAxisDirection.TOP) {
// if (!reverse) {
// itemPos.y = this.getItemYMax(child._uiProps.uiTransformComp!) + this.paddingTop
// } else {
// itemPos.y = this.getItemYMin(child._uiProps.uiTransformComp!) - this.paddingBottom
// }
// } else {
// if (!reverse) {
// itemPos.y = this.getItemYMin(child._uiProps.uiTransformComp!) - this.paddingBottom
// } else {
// itemPos.y = this.getItemYMax(child._uiProps.uiTransformComp!) + this.paddingTop
// }
// }
// } else {
// if (this.indexHorizontalAxisDirection == IndexHorizontalAxisDirection.LEFT) {
// if (!reverse) {
// itemPos.x = this.getItemXMin(child._uiProps.uiTransformComp!) - this.paddingLeft
// } else {
// itemPos.x = this.getItemXMax(child._uiProps.uiTransformComp!) + this.paddingRight
// }
// } else {
// if (!reverse) {
// itemPos.x = this.getItemXMax(child._uiProps.uiTransformComp!) + this.paddingRight
// } else {
// itemPos.x = this.getItemXMin(child._uiProps.uiTransformComp!) - this.paddingLeft
// }
// }
// }
// }
// let worldPos = this.transform?.convertToWorldSpaceAR(itemPos)!
// let localPos = this.view.convertToNodeSpaceAR(worldPos)
// var multiple
// if (!this.autoCenter && boundary) {
// multiple = boundary
// } else {
// multiple = this.getCenterAnchor(child._uiProps.uiTransformComp!, this.centerPosition)
// }
// localPos.multiply(new Vec3(-1, -1, 1)).add(multiple)
// this.scrollView.scrollToAny(localPos, timeInSecond, true)
// }
// protected async onViewSizeChange() {
// this.isRestart = true
// this.createItems(this.currentCreateItemTotal)
// this.resetChilds(true)
// this.scrollToHeader()
// for (let i = 0; i < this.node.children.length; i++) {
// const child: any = this.node.children[i];
// const transform = child._uiProps.uiTransformComp!
// this.setAndSaveSizeAndScale(transform)
// }
// this.isRestart = false
// }
// protected setAndSaveSizeAndScale(item: UITransform) {
// item.setContentSize(this.getItemSize(item));
// (item.node as any)["__size"] = item.contentSize.clone();
// (item.node as any)["__scale"] = item.node.getScale().clone();
// }
// /** 根据centerAnchor计算自动居中的真实位置 */
// protected getCenterAnchor(item: UITransform, center: Vec3) {
// var pos = center.clone()
// if (this.vertical) {
// let anchor = item.height! * this.centerAnchor.y
// let origin = item.height! * item.anchorY!
// pos.y -= anchor - origin
// } else {
// let anchor = item.width! * this.centerAnchor.x
// let origin = item.width! * item.anchorX!
// pos.x += anchor - origin
// }
// return pos
// }
// /** 滚动即将结束时 跑自动居中的逻辑 */
// protected soonFinish() {
// if (!this.autoCenter) return
// this.scrollView.stopAutoScroll()
// var findedPos = new Vec3(999999, 999999)
// for (let i = 0; i < this.node.children.length; i++) {
// const child = this.node.children[i];
// let worldPos = this.transform?.convertToWorldSpaceAR(child.position)!
// let localPos = this.view.convertToNodeSpaceAR(worldPos)
// let map = { width: false, height: false }
// var multiple = this.getCenterAnchor(child._uiProps.uiTransformComp!, this.centerPosition)
// let newLocalPos = localPos.subtract(multiple)
// map.width = Math.abs(newLocalPos.x) < Math.abs(findedPos.x)
// map.height = Math.abs(newLocalPos.y) < Math.abs(findedPos.y)
// if (this.vertical && map.height) {
// findedPos = newLocalPos
// } else if (!this.vertical && map.width) {
// findedPos = newLocalPos
// }
// }
// findedPos.multiply(new Vec3(-1, -1, 1))
// this.scrollView.scrollToAny(findedPos, this.centerTime)
// }
// /** 根据groupItemTotal和View可容纳的尺寸 来平均分配Item该有的尺寸 */
// protected getItemSize(item: UITransform): Size {
// let size = new Size()
// if (this.vertical) {
// let spacing = this.spacingX * (this.groupItemTotal - 1)
// size.width = (this.accommodWidth - spacing) / this.groupItemTotal
// size.height = item.height
// } else {
// let spacing = this.spacingY * (this.groupItemTotal - 1)
// size.height = (this.accommodHeight - spacing) / this.groupItemTotal
// size.width = item.width
// }
// return size
// }
// /** 获取Item的YMax */
// protected getItemYMax(item: UITransform | null): number {
// if (!item) return 0
// let height = this.getScaleHeight(item) * (1 - item.anchorY)
// return item.node.position.y + height
// }
// /** 获取Item的YMin */
// protected getItemYMin(item: UITransform | null): number {
// if (!item) return 0
// let height = this.getScaleHeight(item) * item.anchorY
// return item.node.position.y - height
// }
// /** 获取Item的XMax */
// protected getItemXMax(item: UITransform | null): number {
// if (!item) return 0
// let width = this.getScaleWidth(item) * (1 - item.anchorX)
// return item.node.position.x + width
// }
// /** 获取Item的XMin */
// protected getItemXMin(item: UITransform | null): number {
// if (!item) return 0
// let width = this.getScaleWidth(item) * item.anchorX
// return item.node.position.x - width
// }
// /** 获取一组Item中起始位置X */
// protected getStartX(item: UITransform | null): number {
// if (!item) return 0
// var x = 0
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// let width = this.getScaleWidth(item) * item.anchorX
// x = this.viewStartPoint.x + width
// } else {
// let width = this.getScaleWidth(item) * (1 - item.anchorX)
// x = this.viewStartPoint.x - width
// }
// return x
// }
// /** 获取一组Item中结束位置X */
// protected getEndX(item: UITransform | null): number {
// if (!item) return 0
// var x = 0
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// let width = this.getScaleWidth(item) * (1 - item.anchorX)
// x = -this.viewStartPoint.x - width - this.paddingRight + this.paddingLeft
// } else {
// let width = this.getScaleWidth(item) * item.anchorX
// x = -this.viewStartPoint.x + width + this.paddingLeft - this.paddingRight
// }
// return x
// }
// /** 获取一组Item中起始位置Y */
// protected getStartY(item: UITransform | null): number {
// if (!item) return 0
// var y = 0
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// let height = this.getScaleHeight(item) * (1 - item.anchorY)
// y = this.viewStartPoint.y - height
// } else {
// let height = this.getScaleHeight(item) * item.anchorY
// y = this.viewStartPoint.y + height
// }
// return y
// }
// /** 获取一组Item中结束位置Y */
// protected getEndY(item: UITransform | null): number {
// if (!item) return 0
// var y = 0
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// let height = this.getScaleHeight(item) * item.anchorY
// y = -this.viewStartPoint.y + height + this.paddingBottom - this.paddingTop
// } else {
// let height = this.getScaleHeight(item) * (1 - item.anchorY)
// y = -this.viewStartPoint.y - height - this.paddingTop + this.paddingBottom
// }
// return y
// }
// /** relative的顶部是否有也容纳空间 */
// protected isAccommodateByTop(relative: UITransform) {
// var max = this.getItemYMax(relative)
// return max + this.paddingTop < this.accommodHeight * 0.5
// }
// /** relative的底部是否有也容纳空间 */
// protected isAccommodateByBottom(relative: UITransform) {
// var min = this.getItemYMin(relative)
// return min - this.paddingBottom > this.accommodHeight * -0.5
// }
// /** relative的左侧是否有也容纳空间 */
// protected isAccommodateByLeft(relative: UITransform) {
// var min = this.getItemXMin(relative)
// return min - this.paddingLeft > this.accommodWidth * -0.5
// }
// /** relative的右侧是否有也容纳空间 */
// protected isAccommodateByRight(relative: UITransform) {
// var max = this.getItemXMax(relative)
// return max + this.paddingRight < this.accommodWidth * 0.5
// }
// /** relative的左侧位置 */
// protected getRelativeByLeft(item: UITransform, relative: UITransform): number {
// var min = this.getItemXMin(relative)
// return min - this.spacingX - this.getScaleWidth(item) * (1 - item.anchorX)
// }
// /** relative的右侧位置 */
// protected getRelativeByRight(item: UITransform, relative: UITransform): number {
// var max = this.getItemXMax(relative)
// return max + this.spacingX + this.getScaleWidth(item) * item.anchorX
// }
// /** relative的顶部位置 */
// protected getRelativeByTop(item: UITransform, relative: UITransform): number {
// var max = this.getItemYMax(relative)
// return max + this.spacingY + this.getScaleHeight(item) * (1 - item.anchorY)
// }
// /** relative的底部位置 */
// protected getRelativeByBottom(item: UITransform, relative: UITransform): number {
// var min = this.getItemYMin(relative)
// return min - this.spacingY - this.getScaleHeight(item) * item.anchorY
// }
// /** 设置Item的坐标位置 */
// protected setItemPosition(item: UITransform, relative: UITransform, reverse: boolean = false, isHeader: boolean = false) {
// var pos = new Vec3()
// // if (!this.header) {
// if (isHeader) {
// pos.x = this.getStartX(item)
// pos.y = this.getStartY(item)
// } else {
// if (this.vertical) {
// pos = this.getVerticalRelativePosition(item, relative, reverse)
// } else {
// pos = this.getHorizontalRelativePosition(item, relative, reverse)
// }
// }
// item.node.setPosition(pos)
// }
// /** 计算垂直模式的Item应该的位置 */
// protected getVerticalRelativePosition(item: UITransform, relative: UITransform, reverse: boolean) {
// var pos = new Vec3()
// var isAccommodate = false
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// isAccommodate = !reverse ? this.isAccommodateByRight(relative) : this.isAccommodateByLeft(relative)
// } else {
// isAccommodate = !reverse ? this.isAccommodateByLeft(relative) : this.isAccommodateByRight(relative)
// }
// // 横轴
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (!reverse) {
// pos.x = isAccommodate ? this.getRelativeByRight(item, relative) : this.getStartX(item)
// } else {
// pos.x = isAccommodate ? this.getRelativeByLeft(item, relative) : this.getEndX(item)
// }
// } else {
// if (!reverse) {
// pos.x = isAccommodate ? this.getRelativeByLeft(item, relative) : this.getStartX(item)
// } else {
// pos.x = isAccommodate ? this.getRelativeByRight(item, relative) : this.getEndX(item)
// }
// }
// // 纵轴
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (!reverse) {
// pos.y = isAccommodate ? relative.node.position.y : this.getRelativeByBottom(item, relative)
// } else {
// pos.y = isAccommodate ? relative.node.position.y : this.getRelativeByTop(item, relative)
// }
// } else {
// if (!reverse) {
// pos.y = isAccommodate ? relative.node.position.y : this.getRelativeByTop(item, relative)
// } else {
// pos.y = isAccommodate ? relative.node.position.y : this.getRelativeByBottom(item, relative)
// }
// }
// return pos
// }
// /** 计算水平模式的Item应该的位置 */
// protected getHorizontalRelativePosition(item: UITransform, relative: UITransform, reverse: boolean) {
// var pos = new Vec3()
// var isAccommodate = false
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// isAccommodate = !reverse ? this.isAccommodateByBottom(relative) : this.isAccommodateByTop(relative)
// } else {
// isAccommodate = !reverse ? this.isAccommodateByTop(relative) : this.isAccommodateByBottom(relative)
// }
// // 纵轴
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (!reverse) {
// pos.y = isAccommodate ? this.getRelativeByBottom(item, relative) : this.getStartY(item)
// } else {
// pos.y = isAccommodate ? this.getRelativeByTop(item, relative) : this.getEndY(item)
// }
// } else {
// if (!reverse) {
// pos.y = isAccommodate ? this.getRelativeByTop(item, relative) : this.getStartY(item)
// } else {
// pos.y = isAccommodate ? this.getRelativeByBottom(item, relative) : this.getEndY(item)
// }
// }
// // 横轴
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (!reverse) {
// pos.x = isAccommodate ? relative.node.position.x : this.getRelativeByRight(item, relative)
// } else {
// pos.x = isAccommodate ? relative.node.position.x : this.getRelativeByLeft(item, relative)
// }
// } else {
// if (!reverse) {
// pos.x = isAccommodate ? relative.node.position.x : this.getRelativeByLeft(item, relative)
// } else {
// pos.x = isAccommodate ? relative.node.position.x : this.getRelativeByRight(item, relative)
// }
// }
// return pos
// }
// /** 当数据长度发生变化时 计算item应该怎么排列 */
// protected refreshItems(offset: number) {
// if (offset < 0) {
// for (let i = 0; i < -offset; i++) {
// if (this.headerLoop) {
// this.pushToHeader()
// } else if (this.footerLoop) {
// this.pushToHeader()
// } else {
// this.pushToHeader(true)
// this.pushToFooter()
// }
// }
// let startIndex = this.headerIndex > 0 ? this.headerIndex : 0
// if (startIndex + this.node.children.length > this.itemTotal) {
// startIndex += offset
// }
// for (let i = 0; i < this.node.children.length; i++) {
// const child: any = this.node.children[i];
// if (this.headerLoop || this.footerLoop) {
// if (startIndex > this.itemTotal - 1) {
// startIndex = 0
// }
// }
// child["__index"] = startIndex
// startIndex++
// this.notifyRefreshItem(child)
// }
// this.scrollView.stopAutoScroll()
// this.scrollView.startAutoScroll()
// } else {
// for (let i = 0; i < this.node.children.length; i++) {
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// this.pushToFooter()
// } else {
// this.pushToHeader()
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// this.pushToFooter()
// } else {
// this.pushToHeader()
// }
// }
// }
// }
// }
// protected createItems(count: number) {
// // 有多余的item 需要删除 不处理
// if (this.node.children.length > count) {
// this.removeItems(count)
// return
// }
// if (!this.needAddPrefab()) {
// // 已经固定item总数 不处理
// if (this._maxPrefabTotal > 0 && this._maxPrefabTotal == this.node.children.length) {
// return
// }
// }
// let total = count - this.node.children.length //计算当前应该创建的总数
// for (let i = 0; i < total; i++) {
// let child: any = instantiate(this.prefab)
// const transform = child._uiProps.uiTransformComp
// this.setAndSaveSizeAndScale(transform)
// child["__index"] = this.node.children.length
// this.node.addChild(child)
// var reverse = false
// var index = this.node.children.length - 2
// var relative
// if (child["__index"] == 0) {
// relative = this.footer!
// } else {
// relative = this.node.children[index]._uiProps.uiTransformComp!
// }
// child.on(Node.EventType.SIZE_CHANGED, () => { this.onChangeChildSize(transform) }, this, true)
// child.on(Node.EventType.TRANSFORM_CHANGED, (type: any) => { this.onChangeChildScale(type, transform) }, this, true)
// this.notifyRefreshItem(child)
// this.setItemPosition(child._uiProps.uiTransformComp, relative, reverse, child["__index"] == 0)
// /**
// * 根据排列方向 来判断对比宽度还是高度
// * 这里使用参数this.multiple来判断是否需要继续创建 默认为2倍 比如view可视尺寸为800 2倍就是1600
// * 根据之前所创建的所有item的尺寸计算是否满足这个尺寸 如果满足则不再继续创建
// * 由于是分帧加载 所以下一次创建会等这一次的返回结果 返回false 则终止分帧任务
// */
// if (!this.needAddPrefab()) {
// this._maxPrefabTotal = this.node.children.length
// console.log("已固定item数量", this._maxPrefabTotal)
// return
// }
// }
// }
// protected needAddPrefab() {
// const self = this.vertical ? this.contentSize.height : this.contentSize.width
// if (self > 0) {
// // 当尺寸改变时 重新计算prefab的数量
// const view = this.vertical ? this.view.height : this.view.width
// if (self < view * this.multiple) {
// return true
// }
// }
// return false
// }
// protected async onChangeChildSize(item: UITransform) {
// const node: any = item.node
// if (this.groupItemTotal > 1) {
// const __size = node["__size"]
// item.setContentSize(__size)
// console.warn("表格布局不支持动态修改 Size,如果你非要修改，那你把我注释掉看效果")
// return
// }
// if (this.stretchLock.index == node["__index"]) {
// this.scrollToIndex(this.stretchLock.index!, this.stretchLock.timeInSecond, this.stretchLock.boundary, this.stretchLock.reverse)
// }
// this.resetStrectchItems()
// }
// protected async onChangeChildScale(type: any, item: UITransform) {
// if (type !== Node.TransformBit.SCALE) {
// return
// }
// if (!this.affectedByScale) return
// const node: any = item.node
// if (this.groupItemTotal > 1) {
// const __scale = node["__scale"]
// item.node.setScale(__scale)
// console.warn("表格布局不支持动态修改 Scale,如果你非要修改，那你把我注释掉看效果")
// return
// }
// if (this.stretchLock.index == node["__index"]) {
// this.scrollToIndex(this.stretchLock.index!, this.stretchLock.timeInSecond, this.stretchLock.boundary, this.stretchLock.reverse)
// }
// this.resetStrectchItems()
// }
// protected resetStrectchItems() {
// if (!isNaN(this.stretchLock.index!)) {
// const index = this.node.children.findIndex((item: any) => item["__index"] == this.stretchLock.index)
// if (index != -1) {
// for (let i = index; i >= 0; i--) {
// const item = this.node.children[i];
// if (i == index) continue
// if (i < index) {
// this.setItemPosition(item._uiProps.uiTransformComp!, this.node.children[i + 1]._uiProps.uiTransformComp!, true)
// }
// }
// for (let i = index; i < this.node.children.length; i++) {
// const item = this.node.children[i];
// if (i == index) continue
// this.setItemPosition(item._uiProps.uiTransformComp!, this.node.children[i - 1]._uiProps.uiTransformComp!)
// }
// return
// }
// }
// if (this.scrollDirection == ScrollDirection.HEADER) {
// this.unschedule(this.stretchToFooter)
// this.scheduleOnce(this.stretchToFooter)
// } else {
// this.unschedule(this.stretchToHeader)
// this.scheduleOnce(this.stretchToHeader)
// }
// }
// private stretchToHeader() {
// for (let i = this.node.children.length - 1; i >= 0; i--) {
// const item = this.node.children[i];
// if (i == this.node.children.length - 1) continue
// this.setItemPosition(item._uiProps.uiTransformComp!, this.node.children[i + 1]._uiProps.uiTransformComp!, true)
// }
// }
// private stretchToFooter() {
// for (let i = 0; i < this.node.children.length; i++) {
// const item = this.node.children[i];
// if (i == 0) continue
// this.setItemPosition(item._uiProps.uiTransformComp!, this.node.children[i - 1]._uiProps.uiTransformComp!)
// }
// }
// /** 删除多余的item */
// protected removeItems(count: number) {
// // 有多余的item 需要删除
// let length = this.node.children.length - count
// // 删除掉多余的item
// for (let i = 0; i < length; i++) {
// var child = this.node.children[this.node.children.length - 1]
// child.off(Node.EventType.SIZE_CHANGED)
// child.off(Node.EventType.TRANSFORM_CHANGED)
// this.node.removeChild(child)
// child.destroy()
// }
// }
// protected addEventListener() {
// this.node.on(SystemEventType.TRANSFORM_CHANGED, this.onPositionChanged, this)
// }
// protected removeEventListener() {
// this.node.off(SystemEventType.TRANSFORM_CHANGED, this.onPositionChanged, this)
// }
// /** 重新计算当前所有Item的位置 */
// protected resetChilds(start: boolean = false) {
// if (this.vertical && this.fixedItemHeight <= this.view.height || !this.vertical && this.fixedItemWidth <= this.view.width) {
// let x = this.getStartX(this.header)
// let y = this.getStartY(this.header)
// this.header?.node.setPosition(new Vec3(x, y))
// }
// if (start) {
// if (this.vertical) {
// let x = this.getStartX(this.header)
// this.header?.node.setPosition(new Vec3(x, this.header.node.position.y))
// } else {
// let y = this.getStartY(this.header)
// this.header?.node.setPosition(new Vec3(this.header.node.position.x, y))
// }
// }
// this.stretchToFooter()
// if (!start) {
// this.scrollView.startAutoScroll()
// }
// }
// protected onTouchBegin() {
// this.stretchLock = {}
// }
// protected getUsedScaleValue(value: number) {
// return this.affectedByScale ? Math.abs(value) : 1;
// }
// protected getScaleWidth(trans: UITransform | null): number {
// if (!trans) return 0
// const size = (trans.node as any)["__runtime_size"]
// const width = size ? size.width : trans.width
// return width * this.getUsedScaleValue(trans.node.scale.x)
// }
// protected getScaleHeight(trans: UITransform | null): number {
// if (!trans) return 0
// const size = (trans.node as any)["__runtime_size"]
// const height = size ? size.height : trans.height
// return height * this.getUsedScaleValue(trans.node.scale.y)
// }
// protected onPositionChanged() {
// if (this.isRestart) return
// if (this.vertical) {
// if (this.scrollView.prevLocation.y < this.scrollView.location.y) {
// this.scrollDirection = ScrollDirection.FOOTER
// } else if (this.scrollView.prevLocation.y > this.scrollView.location.y) {
// this.scrollDirection = ScrollDirection.HEADER
// } else {
// this.scrollDirection = ScrollDirection.NONE
// }
// } else {
// if (this.scrollView.prevLocation.x > this.scrollView.location.x) {
// this.scrollDirection = ScrollDirection.FOOTER
// } else if (this.scrollView.prevLocation.x < this.scrollView.location.x) {
// this.scrollDirection = ScrollDirection.HEADER
// } else {
// this.scrollDirection = ScrollDirection.NONE
// }
// }
// if (this.vertical) {
// for (let i = 0; i < this.node.children.length; i++) {
// let isOfBoundary = Math.abs(this.prevPos.y - this.node.position.y) > EPSILON
// if (!isOfBoundary) continue
// if (this.prevPos.y < this.node.position.y) {
// this.pushToFooter()
// } else if (this.prevPos.y > this.node.position.y) {
// this.pushToHeader()
// }
// }
// } else {
// for (let i = 0; i < this.node.children.length; i++) {
// let isOfBoundary = Math.abs(this.prevPos.x - this.node.position.x) > EPSILON
// if (!isOfBoundary) continue
// if (this.prevPos.x > this.node.position.x) {
// this.pushToFooter()
// } else if (this.prevPos.x < this.node.position.x) {
// this.pushToHeader()
// }
// }
// }
// this.prevPos = this.node.position.clone()
// }
// /** 向尾部填充 force如果为true 则强制填充 */
// protected pushToFooter(force: boolean = false) {
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (force || this.headerBoundary - this.paddingTop > this.viewHeaderBoundary + this.header?.height!) {
// this.pushToFooterHandler()
// }
// } else {
// if (force || this.footerBoundary - this.paddingTop > this.viewHeaderBoundary + this.header?.height!) {
// this.pushToHeaderHandler()
// }
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (force || this.headerBoundary + this.paddingLeft < this.viewHeaderBoundary - this.header?.width!) {
// this.pushToFooterHandler()
// }
// } else {
// if (force || this.footerBoundary + this.paddingLeft < this.viewHeaderBoundary - this.header?.width!) {
// this.pushToHeaderHandler()
// }
// }
// }
// }
// /** 向头部填充 force如果为true 则强制填充 */
// protected pushToHeader(force: boolean = false) {
// if (this.vertical) {
// if (this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM) {
// if (force || this.footerBoundary + this.paddingBottom < this.viewFooterBoundary - this.footer?.height!) {
// this.pushToHeaderHandler()
// }
// } else {
// if (force || this.headerBoundary + this.paddingBottom < this.viewFooterBoundary - this.footer?.height!) {
// this.pushToFooterHandler()
// }
// }
// } else {
// if (this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT) {
// if (force || this.footerBoundary - this.paddingRight > this.viewFooterBoundary + this.footer?.width!) {
// this.pushToHeaderHandler()
// }
// } else {
// if (force || this.headerBoundary - this.paddingRight > this.viewFooterBoundary + this.footer?.width!) {
// this.pushToFooterHandler()
// }
// }
// }
// }
// protected pushToFooterHandler() {
// var node: any = this.header?.node
// let loop
// if (this.vertical) {
// loop = this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM ? this.footerLoop : this.headerLoop
// } else {
// loop = this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT ? this.footerLoop : this.headerLoop
// }
// if (loop) {
// if (this.footerIndex >= this.itemTotal - 1) {
// node["__index"] = 0
// } else {
// node["__index"] = this.footerIndex + 1
// }
// } else {
// if (!this.footer || this.footerIndex >= this.itemTotal - 1) return
// node["__index"] = this.footerIndex + 1
// }
// this.notifyRefreshItem(node)
// this.setItemPosition(this.header!, this.footer!)
// this.header?.node.setSiblingIndex(this.node.children.length)
// }
// protected pushToHeaderHandler() {
// var node: any = this.footer?.node
// let loop
// if (this.vertical) {
// loop = this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM ? this.headerLoop : this.footerLoop
// } else {
// loop = this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT ? this.headerLoop : this.footerLoop
// }
// // 对其头部
// if (!loop && this.headerIndex == 0) {
// // 判断是否是起始位置
// var accommodate
// if (this.vertical) {
// accommodate = this.horizontalAxisDirection == HorizontalAxisDirection.LEFT_TO_RIGHT ? this.isAccommodateByLeft(this.header!) : this.isAccommodateByRight(this.header!)
// } else {
// accommodate = this.verticalAxisDirection == VerticalAxisDirection.TOP_TO_BOTTOM ? this.isAccommodateByTop(this.header!) : this.isAccommodateByBottom(this.header!)
// }
// if (accommodate) {
// this.resetChilds(true)
// }
// }
// if (loop) {
// if (this.headerIndex == 0) {
// node["__index"] = this.itemTotal - 1
// } else {
// node["__index"] = this.headerIndex - 1
// }
// } else {
// if (!this.header || this.headerIndex == 0) return
// node["__index"] = this.headerIndex - 1
// }
// this.notifyRefreshItem(node)
// this.setItemPosition(this.footer!, this.header!, true)
// this.footer?.node.setSiblingIndex(0)
// }
// /** 通知给定的node刷新数据 */
// protected notifyRefreshItem(target: Node) {
// EventHandler.emitEvents(this.refreshItemEvents, target, (target as any)['__index'])
// }
// }
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