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+/*
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+ * *********************************************************************************************************************
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+ *
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+ * !!
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+ * .F88X
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+ * X8888Y
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+ * .}888888N;
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+ * i888888N; .:! .I$WI:
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+ * R888888I .'N88~ i8}+8Y&8"l8i$8>8W~'>W8}8]KW+8IIN"8&
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+ * .R888888I .;N8888~ .X8' "8I.!,/8" !%NY8`"8I8~~8>,88I
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+ * +888888N; .8888888Y "&&8Y.}8,
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+ * ./888888N; .R888888Y .'}~ .>}'.`+> i}! "i' +/' .'i~ !11,.:">, .~]! .i}i
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+ * ~888888%: .I888888l .]88~`1/iY88Ii+1'.R$8$8]"888888888> Y8$ W8E X8E W8888'188Il}Y88$*
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+ * 18888888 E8888881 .]W%8$`R8X'&8%++N8i,8N%N8+l8%` .}8N:.R$RE%N88N%N$K$R 188,FE$8%~Y88I
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+ * .E888888I .i8888888' .:$8I;88+`E8R:/8N,.>881.`$8E/1/]N8X.Y8N`"KF&&FK!'88*."88K./$88%RN888+~
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+ * 8888888I .,N888888~ ~88i"8W,!N8*.I88.}888%F,i$88"F88" 888:E8X.>88!i88>`888*.}Fl1]*}1YKi'
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+ * i888888N' I888Y ]88;/EX*IFKFK88X K8R .l8W 88Y ~88}'88E&%8W.X8N``]88!.$8K .:W8I
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+ * .i888888N; I8Y .&8$ .X88! i881.:%888>I88 ;88] +88+.';;;;:.Y88X 18N.,88l .+88/
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+ * .:R888888I
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+ * .&888888I Copyright (c) 2009-2020. 博锐尚格科技股份有限公司
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+ * ~8888'
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+ * .!88~ All rights reserved.
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+ *
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+ * *********************************************************************************************************************
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+ */
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+
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+import { SGraphStyleItem } from "@persagy-web/graph";
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+import {
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+ SLineCapStyle,
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+ SPainter,
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+ SPath,
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+ SPoint,
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+ SPolygonUtil,
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+ SRect
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+} from "@persagy-web/draw";
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+import { SGraphItem } from "@persagy-web/graph/lib";
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+import { ItemOrder } from "../config/ItemOrder";
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+import { SItemStatus } from "..";
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+import { SMouseEvent } from "@persagy-web/base";
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+import { SMathUtil } from "@persagy-web/graph/lib/utils/SMathUtil";
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+
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+export class SSceneMaskItem extends SGraphStyleItem {
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+ /** 轮廓线坐标 */
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+ outline: SPoint[] = [];
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+ /** X坐标最小值 */
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+ private minX = Number.MAX_SAFE_INTEGER;
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+ /** X坐标最大值 */
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+ private maxX = Number.MIN_SAFE_INTEGER;
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+ /** Y坐标最小值 */
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+ private minY = Number.MAX_SAFE_INTEGER;
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+ /** Y坐标最大值 */
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+ private maxY = Number.MIN_SAFE_INTEGER;
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+ /** 鼠标移动点 */
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+ private lastPoint = new SPoint();
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+ /** 蒙版 */
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+ private mask = new SPath();
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+ /** 是否完成绘制 */
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+ protected _status: SItemStatus = SItemStatus.Normal;
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+ get status(): SItemStatus {
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+ return this._status;
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+ }
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+ set status(v: SItemStatus) {
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+ this._status = v;
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+ this.update();
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+ }
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+
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+ /**
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+ * 构造函数
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+ *
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+ * @param parent 指向父对象
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+ * @param data 蒙版起点数据
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+ */
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+ constructor(parent: SGraphItem | null, data: SPoint);
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+
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+ /**
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+ * 构造函数
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+ *
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+ * @param parent 指向父对象
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+ * @param data 蒙版轮廓线数据
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+ */
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+ constructor(parent: SGraphItem | null, data: SPoint[]);
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+
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+ /**
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+ * 构造函数
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+ *
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+ * @param parent 指向父对象
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+ * @param data 蒙版起点数据 | 蒙版轮廓线数据
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+ */
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+ constructor(parent: SGraphItem | null, data: SPoint[] | SPoint) {
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+ super(parent);
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+ if (data instanceof Array) {
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+ this.outline = data;
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+ this.createMask();
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+ this.outline.forEach(it => {
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+ let x = it.x,
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+ y = it.y;
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+ if (x < this.minX) {
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+ this.minX = x;
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+ }
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+ if (y < this.minY) {
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+ this.minY = y;
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+ }
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+ if (x > this.maxX) {
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+ this.maxX = x;
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+ }
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+ if (y > this.maxY) {
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+ this.maxY = y;
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+ }
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+ });
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+ } else {
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+ this.outline.push(data);
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+ this.lastPoint = data;
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+ this.minY = data.y;
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+ this.maxY = data.y;
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+ this.minX = data.x;
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+ this.maxX = data.x;
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+ }
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+ this.zOrder = ItemOrder.sceneMarkOrder;
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+ }
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+
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+ /**
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+ * 创建蒙版
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+ */
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+ createMask(): void {
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+ this.status = SItemStatus.Normal;
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+ this.releaseItem();
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+ this.$emit("finishCreated");
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+ this.mask = new SPath();
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+ this.mask.moveTo(Number.MIN_SAFE_INTEGER, Number.MIN_SAFE_INTEGER);
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+ this.mask.lineTo(Number.MAX_SAFE_INTEGER, Number.MIN_SAFE_INTEGER);
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+ this.mask.lineTo(Number.MAX_SAFE_INTEGER, Number.MAX_SAFE_INTEGER);
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+ this.mask.lineTo(Number.MIN_SAFE_INTEGER, Number.MAX_SAFE_INTEGER);
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+ this.mask.lineTo(Number.MIN_SAFE_INTEGER, Number.MIN_SAFE_INTEGER);
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+
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+ let antiArr = this.outline.concat([]);
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+ // (计算基于数学坐标系统,在绘图坐标系由于y轴方向相反结果也要取反)
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+ if (SPolygonUtil.clockDir(antiArr) > 0) {
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+ antiArr = antiArr.reverse();
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+ }
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+ this.mask.polygon(antiArr);
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+ this.update();
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+ }
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+
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+ /**
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+ * 外接矩阵
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+ */
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+ boundingRect(): SRect {
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+ return new SRect(
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+ this.minX,
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+ this.minY,
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+ this.maxX - this.minX,
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+ this.maxY - this.minY
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+ );
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+ }
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+
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+ /**
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+ * 判断点是否在区域内
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+ *
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+ * @param x
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+ * @param y
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+ */
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+ contains(x: number, y: number): boolean {
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+ let arr = this.outline;
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+ return !SPolygonUtil.pointIn(x, y, arr);
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+ }
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+
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+ /**
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+ * 鼠标按下事件
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+ *
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+ * @param event 事件参数
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+ * @return boolean
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+ */
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+ onMouseDown(event: SMouseEvent): boolean {
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+ if (this.status == SItemStatus.Create && event.buttons == 1) {
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+ if (
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+ this.lastPoint.x == this.outline[0].x &&
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+ this.lastPoint.y == this.outline[0].y &&
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+ this.outline.length >= 3
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+ ) {
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+ this.createMask();
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+ return true;
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+ }
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+ let p = new SPoint(event.x, event.y);
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+ let x = p.x,
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+ y = p.y;
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+ this.lastPoint.x = x;
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+ this.lastPoint.y = y;
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+ this.outline.push(p);
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+ if (x < this.minX) {
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+ this.minX = x;
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+ }
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+ if (y < this.minY) {
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+ this.minY = y;
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+ }
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+ if (x > this.maxX) {
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+ this.maxX = x;
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+ }
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+ if (y > this.maxY) {
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+ this.maxY = y;
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+ }
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+ }
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+ this.update();
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+ return true;
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+ } // Function onMouseDown()
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+
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+ /**
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+ * 鼠标移动事件
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+ *
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+ * @param event 事件参数
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+ * @return boolean
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+ */
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+ onMouseMove(event: SMouseEvent): boolean {
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+ if (this.status == SItemStatus.Create) {
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+ this.lastPoint = new SPoint(event.x, event.y);
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+ if (this.outline.length >= 3) {
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+ let le = SMathUtil.pointDistance(
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+ this.lastPoint.x,
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+ this.lastPoint.y,
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+ this.outline[0].x,
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+ this.outline[0].y
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+ );
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+ // @ts-ignore
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+ let scale = this.parent.scene.view.scale;
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+ if (le * scale < 30) {
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+ this.lastPoint.x = this.outline[0].x;
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+ this.lastPoint.y = this.outline[0].y;
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+ }
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+ }
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+ }
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+ this.update();
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+ return true;
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+ } // Function onMouseMove()
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+
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+ /***
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+ * 键盘按键弹起事件
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+ *
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+ * @param event 事件参数
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+ */
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+ onKeyUp(event: KeyboardEvent): void {
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+ if (event.keyCode == 13 && this.outline.length >= 3) {
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+ this.createMask();
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+ }
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+ } // Function onKeyUp()
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+
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+ /**
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+ * Item绘制操作
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+ *
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+ * @param painter painter对象
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+ */
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+ onDraw(painter: SPainter): void {
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+ painter.pen.lineCapStyle = SLineCapStyle.Square;
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+ painter.pen.color = this.strokeColor;
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+ painter.brush.color = this.fillColor;
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+ if (this.widthIsPx) {
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+ painter.pen.lineWidth = painter.toPx(this.lineWidth);
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+ } else {
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+ painter.pen.lineWidth = this.lineWidth;
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+ }
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+ if (this.status == SItemStatus.Normal) {
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+ painter.drawPath(this.mask);
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+ } else if (this.status == SItemStatus.Create) {
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+ painter.drawPolyline(this.outline);
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+ painter.drawLine(
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+ this.outline[this.outline.length - 1],
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+ this.lastPoint
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+ );
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+ }
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+ }
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+}
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