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+import {
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+ SGraphItem,
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+ SGraphPointListDelete,
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+ SGraphPointListInsert,
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+ SGraphPointListUpdate,
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+ SLineStyle
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+} from "@persagy-web/graph/lib";
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+import { SKeyCode, SMouseEvent, SUndoStack } from "@persagy-web/base/";
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+import {
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+ SColor,
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+ SLine,
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+ SLineCapStyle,
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+ SPainter,
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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 { SItemStatus } from "..";
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+import { SMathUtil } from "../utils/SMathUtil";
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+
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+/**
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+ * 编辑多边形
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+ *
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+ * @author 韩耀龙
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+ */
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+export class SPolygonItem extends SGraphItem {
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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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+
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+ /** 轮廓线坐标 */
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+ private pointList: SPoint[] = [];
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+ // 获取当前状态
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+ get getPointList(): SPoint[] {
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+ return this.pointList;
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+ }
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+ // 编辑当前状态
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+ set setPointList(arr: SPoint[]) {
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+ this.pointList = arr;
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+ this.update();
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+ }
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+
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+ // 当前状态
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+ protected _status: number = SItemStatus.Normal;
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+ // 获取当前状态
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+ get status(): SItemStatus {
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+ return this._status;
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+ }
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+ // 编辑当前状态
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+ set status(value: SItemStatus) {
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+ this._status = value;
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+ this.undoStack.clear();
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+ this.update();
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+ }
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+
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+ /** 边框颜色 */
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+ _strokeColor: SColor = new SColor("#0091FF");
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+ /** 画笔颜色 */
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+ get strokeColor(): SColor {
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+ return this._strokeColor;
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+ }
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+ set strokeColor(v: SColor) {
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+ this._strokeColor = v;
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+ this.update();
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+ }
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+
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+ /** 填充颜色 */
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+ _fillColor: SColor = new SColor("#1EE887");
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+ get fillColor(): SColor {
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+ return this._fillColor;
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+ }
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+ set fillColor(v: SColor) {
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+ this._fillColor = v;
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+ this.update();
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+ }
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+
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+ /** 边框样式 */
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+ _lineStyle: SLineStyle = SLineStyle.Solid;
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+ get lineStyle(): SLineStyle {
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+ return this._lineStyle;
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+ }
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+ set lineStyle(v: SLineStyle) {
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+ this._lineStyle = v;
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+ this.update();
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+ }
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+
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+ /** 边框的宽 只可输入像素宽*/
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+ _lineWidth: number = 4;
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+ get lineWidth(): number {
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+ return this._lineWidth;
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+ }
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+ set lineWidth(v: number) {
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+ this._lineWidth = v;
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+ this.update();
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+ }
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+
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+ /** 是否闭合 */
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+ closeFlag: boolean = false;
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+ /** 鼠标移动点 */
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+ private lastPoint: SPoint | null = null;
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+ /** 当前鼠标获取顶点对应索引 */
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+ private curIndex: number = -1;
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+ /** 当前鼠标获取顶点对应坐标 */
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+ private curPoint: null | SPoint = null;
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+ /** 灵敏像素 */
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+ private len: number = 10;
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+ /** 场景像素 内部将灵敏像素换算为场景实际距离 */
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+ private scenceLen: number = 15;
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+ /** 场景像素 */
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+ private isAlt: boolean = false;
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+ /** undoredo堆栈 */
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+ protected undoStack: SUndoStack = new SUndoStack();
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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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+ */
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+ constructor(parent: SGraphItem | null) {
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+ super(parent);
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+ }
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+
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+ //////////////////
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+ // 以下为对pointList 数组的操作方法
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+
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+ /**
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+ * 储存新的多边形顶点
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+ *
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+ * @param x 点位得x坐标
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+ * @param y 点位得y坐标
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+ * @param i 储存所在索引
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+ * @return SPoint。添加的顶点
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+ */
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+ insertPoint(x: number, y: number, i: number | null = null): SPoint {
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+ const point = new SPoint(x, y);
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+ if (i == null) {
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+ this.pointList.push(point);
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+ } else {
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+ this.pointList.splice(i, 0, point);
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+ }
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+ this.update();
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+ return point;
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+ }
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+
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+ /**
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+ * 删除点位
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+ *
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+ * @param i 删除点所在的索引
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+ * @return SPoint|null。索引不在数组范围则返回null
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+ */
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+ deletePoint(i: number | null = null): SPoint | null {
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+ let point = null;
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+ if (i != null) {
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+ if (i >= this.pointList.length || i < 0) {
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+ point = null;
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+ } else {
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+ point = new SPoint(this.pointList[i].x, this.pointList[i].y);
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+ this.pointList.splice(i, 1);
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+ }
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+ } else {
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+ if (this.pointList.length) {
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+ point = this.pointList[this.pointList.length - 1];
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+ this.pointList.pop();
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+ } else {
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+ point = null;
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+ }
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+ }
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+ this.curIndex = -1;
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+ this.curPoint = null;
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+ this.update();
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+ return point;
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+ }
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+
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+ /**
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+ * 多边形顶点的移动位置
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+ *
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+ * @param x 点位得x坐标
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+ * @param y 点位得y坐标
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+ * @param i 点位得i坐标
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+ * @return 移动对应得点。如果索引无法找到移动顶点,则返回null
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+ */
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+ movePoint(x: number, y: number, i: number): SPoint | null {
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+ let point = null;
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+ if (i >= this.pointList.length || i < 0) {
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+ return null;
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+ }
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+ if (this.pointList.length) {
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+ this.pointList[i].x = x;
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+ this.pointList[i].y = y;
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+ }
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+ point = this.pointList[i];
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+ return point;
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+ }
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+
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+ /**
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+ * 打印出多边形数组
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+ *
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+ * @return 顶点数组
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+ */
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+ PrintPointList(): SPoint[] {
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+ return this.pointList;
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+ }
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+
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+ ////////////
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+ // 以下为三种状态下的绘制多边形方法
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+
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+ /**
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+ * 展示状态 --绘制多边形数组
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+ *
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+ * @param painter 绘制类
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+ * @param pointList 绘制多边形数组
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+ */
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+ protected drawShowPolygon(painter: SPainter, pointList: SPoint[]): void {
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+ painter.save();
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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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+ painter.pen.lineWidth = painter.toPx(this.lineWidth);
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+ if (this.lineStyle == SLineStyle.Dashed) {
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+ painter.pen.lineDash = [
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+ painter.toPx(this.lineWidth * 3),
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+ painter.toPx(this.lineWidth * 7)
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+ ];
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+ } else if (this.lineStyle == SLineStyle.Dotted) {
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+ painter.pen.lineDash = [
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+ painter.toPx(this.lineWidth),
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+ painter.toPx(this.lineWidth)
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+ ];
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+ }
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+ if (this.selected) {
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+ painter.shadow.shadowBlur = 10;
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+ painter.shadow.shadowColor = new SColor(`#00000033`);
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+ painter.shadow.shadowOffsetX = 5;
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+ painter.shadow.shadowOffsetY = 5;
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+ } else {
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+ painter.shadow.shadowColor = SColor.Transparent;
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+ }
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+ painter.drawPolygon([...pointList]);
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+ painter.restore();
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+ }
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+
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+ /**
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+ * 创建状态 --绘制多边形数组
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+ *
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+ * @param painter 绘制类
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+ * @param pointList 绘制多边形数组
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+ */
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+ protected drawCreatePolygon(painter: SPainter, pointList: SPoint[]): void {
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+ painter.pen.lineCapStyle = SLineCapStyle.Square;
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+ painter.pen.color = this.strokeColor;
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+ painter.pen.lineWidth = painter.toPx(this.lineWidth);
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+ if (this.lastPoint && pointList.length) {
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+ painter.drawLine(
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+ pointList[pointList.length - 1].x,
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+ pointList[pointList.length - 1].y,
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+ this.lastPoint.x,
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+ this.lastPoint.y
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+ );
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+ }
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+ painter.drawPolyline(pointList);
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+ painter.pen.color = SColor.Transparent;
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+ painter.brush.color = new SColor(this.fillColor.value);
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+ painter.pen.lineWidth = painter.toPx(this.lineWidth);
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+
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+ if (this.lastPoint) {
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+ painter.drawPolygon([...pointList, this.lastPoint]);
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+ // 绘制顶点块
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+ painter.pen.color = SColor.Black;
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+ painter.brush.color = SColor.White;
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+ pointList.forEach(item => {
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+ painter.drawCircle(item.x, item.y, painter.toPx(this.len / 2));
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+ });
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+ // 如果最后一个点在第一个点的灵敏度范围内,第一个点填充变红
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+ if (this.pointList.length) {
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+ if (
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+ SMathUtil.pointDistance(
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+ this.lastPoint.x,
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+ this.lastPoint.y,
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+ this.pointList[0].x,
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+ this.pointList[0].y
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+ ) < this.scenceLen
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+ ) {
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+ // 绘制第一个点的顶点块
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+ painter.pen.color = SColor.Black;
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+ painter.brush.color = SColor.Red;
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+ painter.drawCircle(
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+ this.pointList[0].x,
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+ this.pointList[0].y,
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+ painter.toPx(this.len / 2)
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+ );
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+ }
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+ }
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+ } else {
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+ painter.drawPolygon(pointList);
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+ }
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+ }
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+
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+ /**
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+ *
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+ * 编辑状态 --绘制多边形数组
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+ *
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+ * @param painter 绘制类
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+ * @param pointList 绘制多边形数组
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+ */
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+ protected drawEditPolygon(painter: SPainter, pointList: SPoint[]): void {
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+ // 展示多边形
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+ painter.pen.lineCapStyle = SLineCapStyle.Square;
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+ painter.pen.color = this.strokeColor;
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+ painter.pen.lineWidth = painter.toPx(this.lineWidth);
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+ painter.brush.color = new SColor(this.fillColor.value);
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+ painter.drawPolygon([...pointList]);
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+ // 绘制顶点块
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+ painter.pen.color = SColor.Black;
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+ painter.brush.color = SColor.White;
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+ pointList.forEach((item, index) => {
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+ painter.brush.color = SColor.White;
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+ if (index == this.curIndex) {
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+ painter.brush.color = new SColor("#2196f3");
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+ }
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+ painter.drawCircle(item.x, item.y, painter.toPx(this.len / 2));
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+ });
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+ }
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+
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+ /**
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+ * 编辑状态操作多边形数组
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+ *
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+ * @param event 鼠标事件
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+ *
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+ *
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+ */
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+ protected editPolygonPoint(event: SMouseEvent): void {
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+ // 判断是否为删除状态 isAlt = true为删除状态
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+ if (this.isAlt) {
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+ // 1 判断是否点击在多边形顶点
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+ let lenIndex = -1; // 当前点击到的点位索引;
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+ let curenLen = this.scenceLen; // 当前的灵敏度
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+ this.pointList.forEach((item, index) => {
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+ let dis = SMathUtil.pointDistance(
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+ event.x,
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+ event.y,
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+ item.x,
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+ item.y
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+ );
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+ if (dis < curenLen) {
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+ curenLen = dis;
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+ lenIndex = index;
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+ }
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+ });
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+ // 若点击到,对该索引对应的点做删除
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+ if (lenIndex != -1) {
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+ if (this.pointList.length <= 3) {
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+ const delePoint = new SPoint(
|
|
|
|
+ this.pointList[lenIndex].x,
|
|
|
|
+ this.pointList[lenIndex].y
|
|
|
|
+ );
|
|
|
|
+ this.deletePoint(lenIndex);
|
|
|
|
+ // 记录顶点操作记录压入堆栈
|
|
|
|
+ this.recordAction(SGraphPointListDelete, [
|
|
|
|
+ this.pointList,
|
|
|
|
+ delePoint,
|
|
|
|
+ lenIndex
|
|
|
|
+ ]);
|
|
|
|
+ }
|
|
|
|
+ } else {
|
|
|
|
+ // 1 判断是否点击在多边形顶点
|
|
|
|
+ this.curIndex = -1;
|
|
|
|
+ this.curPoint = null;
|
|
|
|
+ let lenIndex = -1; // 当前点击到的点位索引;
|
|
|
|
+ let curenLen = this.scenceLen; // 当前的灵敏度
|
|
|
|
+ this.pointList.forEach((item, index) => {
|
|
|
|
+ let dis = SMathUtil.pointDistance(
|
|
|
|
+ event.x,
|
|
|
|
+ event.y,
|
|
|
|
+ item.x,
|
|
|
|
+ item.y
|
|
|
|
+ );
|
|
|
|
+ if (dis < curenLen) {
|
|
|
|
+ curenLen = dis;
|
|
|
|
+ lenIndex = index;
|
|
|
|
+ }
|
|
|
|
+ });
|
|
|
|
+ this.curIndex = lenIndex;
|
|
|
|
+ // 2判断是否点击在多边形得边上
|
|
|
|
+ if (-1 == lenIndex) {
|
|
|
|
+ let len = SMathUtil.pointToLine(
|
|
|
|
+ new SPoint(event.x, event.y),
|
|
|
|
+ new SLine(this.pointList[0], this.pointList[1])
|
|
|
|
+ ),
|
|
|
|
+ index = 0;
|
|
|
|
+ if (this.pointList.length > 2) {
|
|
|
|
+ for (let i = 1; i < this.pointList.length; i++) {
|
|
|
|
+ let dis = SMathUtil.pointToLine(
|
|
|
|
+ new SPoint(event.x, event.y),
|
|
|
|
+ new SLine(this.pointList[i], this.pointList[i + 1])
|
|
|
|
+ );
|
|
|
|
+ if (i + 1 == this.pointList.length) {
|
|
|
|
+ dis = SMathUtil.pointToLine(
|
|
|
|
+ new SPoint(event.x, event.y),
|
|
|
|
+ new SLine(this.pointList[i], this.pointList[0])
|
|
|
|
+ );
|
|
|
|
+ }
|
|
|
|
+ if (dis.MinDis < len.MinDis) {
|
|
|
|
+ len = dis;
|
|
|
|
+ index = i;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ // 判断是否有点
|
|
|
|
+ if (len.Point) {
|
|
|
|
+ // 点在了多边形的边上
|
|
|
|
+ if (len.MinDis <= this.scenceLen) {
|
|
|
|
+ this.pointList.splice(index + 1, 0, len.Point);
|
|
|
|
+ // 记录新增顶点操作记录压入堆栈
|
|
|
|
+ this.recordAction(SGraphPointListInsert, [
|
|
|
|
+ this.pointList,
|
|
|
|
+ len.Point,
|
|
|
|
+ index + 1
|
|
|
|
+ ]);
|
|
|
|
+ } else {
|
|
|
|
+ //没点在多边形边上也没点在多边形顶点上
|
|
|
|
+ super.onMouseDown(event);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ } else {
|
|
|
|
+ // 当捕捉到顶点后 ,记录当前点的xy坐标,用于undo、redo操作
|
|
|
|
+ this.curPoint = new SPoint(
|
|
|
|
+ this.pointList[this.curIndex].x,
|
|
|
|
+ this.pointList[this.curIndex].y
|
|
|
|
+ );
|
|
|
|
+ }
|
|
|
|
+ // 刷新视图
|
|
|
|
+ this.update();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /////////////////////
|
|
|
|
+ // undo、redo相关操作
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 记录相关动作并推入栈中
|
|
|
|
+ * @param SGraphCommand 相关命令类
|
|
|
|
+ * @param any 对应传入参数
|
|
|
|
+ */
|
|
|
|
+ protected recordAction(SGraphCommand: any, any: any[]): void {
|
|
|
|
+ // 记录相关命令并推入堆栈中
|
|
|
|
+ const sgraphcommand = new SGraphCommand(this.scene, this, ...any);
|
|
|
|
+ this.undoStack.push(sgraphcommand);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 执行取消操作执行
|
|
|
|
+ */
|
|
|
|
+ undo(): void {
|
|
|
|
+ if (this.status == SItemStatus.Normal) {
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+ this.undoStack.undo();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 执行重做操作执行
|
|
|
|
+ */
|
|
|
|
+ redo(): void {
|
|
|
|
+ if (this.status == SItemStatus.Normal) {
|
|
|
|
+ return;
|
|
|
|
+ }
|
|
|
|
+ this.undoStack.redo();
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ ///////////////////////////////
|
|
|
|
+ // 以下为鼠标事件
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标双击事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onDoubleClick(event: SMouseEvent): boolean {
|
|
|
|
+ // 如果位show状态 双击改对象则需改为编辑状态
|
|
|
|
+ if (SItemStatus.Normal == this.status) {
|
|
|
|
+ this.status = SItemStatus.Edit;
|
|
|
|
+ this.grabItem(this);
|
|
|
|
+ } else if (SItemStatus.Edit == this.status) {
|
|
|
|
+ this.status = SItemStatus.Normal;
|
|
|
|
+ this.releaseItem();
|
|
|
|
+ }
|
|
|
|
+ this.update();
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onDoubleClick()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 键盘事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ onKeyDown(event: KeyboardEvent): boolean {
|
|
|
|
+ if (this.status == SItemStatus.Normal) {
|
|
|
|
+ return false;
|
|
|
|
+ } else if (this.status == SItemStatus.Create) {
|
|
|
|
+ if (event.code == "Enter") {
|
|
|
|
+ // 当顶点大于二个时才又条件执行闭合操作并清空堆栈
|
|
|
|
+ if (this.pointList.length > 2) {
|
|
|
|
+ this.status = SItemStatus.Normal;
|
|
|
|
+ //3 传递完成事件状态
|
|
|
|
+ this.$emit("finishCreated");
|
|
|
|
+ //1 grabItem 置为null
|
|
|
|
+ this.releaseItem();
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ } else if (this.status == SItemStatus.Edit) {
|
|
|
|
+ if (event.key == "Alt") {
|
|
|
|
+ this.isAlt = true;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ this.update();
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onKeyDown()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 键盘键抬起事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onKeyUp(event: KeyboardEvent): void {
|
|
|
|
+ if (this.status == SItemStatus.Edit) {
|
|
|
|
+ if (event.key == "Alt") {
|
|
|
|
+ this.isAlt = false;
|
|
|
|
+ } else if (event.keyCode == SKeyCode.Delete) {
|
|
|
|
+ // 当多边形的顶点大于三个允许删除点
|
|
|
|
+ if (this.pointList.length > 3) {
|
|
|
|
+ this.deletePoint(this.curIndex);
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ this.update();
|
|
|
|
+ } // Function onKeyUp()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标按下事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onMouseDown(event: SMouseEvent): boolean {
|
|
|
|
+ if (event.shiftKey) {
|
|
|
|
+ event = this.compare(event);
|
|
|
|
+ }
|
|
|
|
+ // 如果状态为编辑状态则添加点
|
|
|
|
+ if (this.status == SItemStatus.Create) {
|
|
|
|
+ // 新增顶点
|
|
|
|
+ let len = -1;
|
|
|
|
+ if (this.pointList.length) {
|
|
|
|
+ len = SMathUtil.pointDistance(
|
|
|
|
+ event.x,
|
|
|
|
+ event.y,
|
|
|
|
+ this.pointList[0].x,
|
|
|
|
+ this.pointList[0].y
|
|
|
|
+ );
|
|
|
|
+ }
|
|
|
|
+ if (this.pointList.length > 2 && len > 0 && len < this.scenceLen) {
|
|
|
|
+ this.status = SItemStatus.Normal;
|
|
|
|
+ //3 传递完成事件状态
|
|
|
|
+ this.$emit("finishCreated");
|
|
|
|
+ //1 grabItem 置为null
|
|
|
|
+ this.releaseItem();
|
|
|
|
+ } else {
|
|
|
|
+ this.insertPoint(event.x, event.y);
|
|
|
|
+ // 记录新增顶点操作记录压入堆栈
|
|
|
|
+ let pos = new SPoint(event.x, event.y);
|
|
|
|
+ this.recordAction(SGraphPointListInsert, [this.pointList, pos]);
|
|
|
|
+ }
|
|
|
|
+ } else if (this.status == SItemStatus.Edit) {
|
|
|
|
+ // 对多边形数组做编辑操作
|
|
|
|
+ this.editPolygonPoint(event);
|
|
|
|
+ } else {
|
|
|
|
+ return super.onMouseDown(event);
|
|
|
|
+ }
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onMouseDown()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标移入事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onMouseEnter(event: SMouseEvent): boolean {
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onMouseEnter()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标移出事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ onMouseLeave(event: SMouseEvent): boolean {
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onMouseLeave()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标移动事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ onMouseMove(event: SMouseEvent): boolean {
|
|
|
|
+ if (event.shiftKey) {
|
|
|
|
+ event = this.compare(event);
|
|
|
|
+ }
|
|
|
|
+ if (this.status == SItemStatus.Create) {
|
|
|
|
+ this.lastPoint = new SPoint();
|
|
|
|
+ this.lastPoint.x = event.x;
|
|
|
|
+ this.lastPoint.y = event.y;
|
|
|
|
+ this.update();
|
|
|
|
+ } else if (this.status == SItemStatus.Edit) {
|
|
|
|
+ if (event.buttons == 1) {
|
|
|
|
+ if (-1 != this.curIndex) {
|
|
|
|
+ this.pointList[this.curIndex].x = event.x;
|
|
|
|
+ this.pointList[this.curIndex].y = event.y;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ this.update();
|
|
|
|
+ } else {
|
|
|
|
+ return super.onMouseMove(event);
|
|
|
|
+ }
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onMouseMove()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * shift垂直水平创建或编辑
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件
|
|
|
|
+ * */
|
|
|
|
+ compare(event: SMouseEvent): SMouseEvent {
|
|
|
|
+ if (this.pointList.length) {
|
|
|
|
+ let last = new SPoint(event.x, event.y);
|
|
|
|
+ if (this.status == SItemStatus.Create) {
|
|
|
|
+ last = this.pointList[this.pointList.length - 1];
|
|
|
|
+ } else if (this.status == SItemStatus.Edit) {
|
|
|
|
+ if (this.curIndex > 1) {
|
|
|
|
+ last = this.pointList[this.curIndex - 1];
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ const dx = Math.abs(event.x - last.x);
|
|
|
|
+ const dy = Math.abs(event.y - last.y);
|
|
|
|
+ if (dy > dx) {
|
|
|
|
+ event.x = last.x;
|
|
|
|
+ } else {
|
|
|
|
+ event.y = last.y;
|
|
|
|
+ }
|
|
|
|
+ }
|
|
|
|
+ return event;
|
|
|
|
+ } // Function compare()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 鼠标抬起事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onMouseUp(event: SMouseEvent): boolean {
|
|
|
|
+ if (this.status == SItemStatus.Edit) {
|
|
|
|
+ if (-1 != this.curIndex) {
|
|
|
|
+ const pos = new SPoint(
|
|
|
|
+ this.pointList[this.curIndex].x,
|
|
|
|
+ this.pointList[this.curIndex].y
|
|
|
|
+ );
|
|
|
|
+ this.recordAction(SGraphPointListUpdate, [
|
|
|
|
+ this.pointList,
|
|
|
|
+ this.curPoint,
|
|
|
|
+ pos,
|
|
|
|
+ this.curIndex
|
|
|
|
+ ]);
|
|
|
|
+ }
|
|
|
|
+ } else if (this.status == SItemStatus.Normal) {
|
|
|
|
+ this.moveToOrigin(this.x, this.y);
|
|
|
|
+ return super.onMouseUp(event);
|
|
|
|
+ }
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onMouseUp()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 移动后处理所有坐标,并肩原点置为场景原点
|
|
|
|
+ *
|
|
|
|
+ * @param x x坐标
|
|
|
|
+ * @param y y坐标
|
|
|
|
+ * */
|
|
|
|
+ moveToOrigin(x: number, y: number): void {
|
|
|
|
+ super.moveToOrigin(x, y);
|
|
|
|
+ this.pointList = this.pointList.map(t => {
|
|
|
|
+ t.x = t.x + x;
|
|
|
|
+ t.y = t.y + y;
|
|
|
|
+ return t;
|
|
|
|
+ });
|
|
|
|
+ this.x = 0;
|
|
|
|
+ this.y = 0;
|
|
|
|
+ } // Function moveToOrigin()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 适配事件
|
|
|
|
+ *
|
|
|
|
+ * @param event 事件参数
|
|
|
|
+ * @return boolean
|
|
|
|
+ */
|
|
|
|
+ onResize(event: SMouseEvent): boolean {
|
|
|
|
+ return true;
|
|
|
|
+ } // Function onResize()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 取消操作
|
|
|
|
+ *
|
|
|
|
+ */
|
|
|
|
+ cancelOperate(): void {
|
|
|
|
+ // 当状态为展示状态
|
|
|
|
+ if (this.status == SItemStatus.Create) {
|
|
|
|
+ // 闭合多边形
|
|
|
|
+ this.parent = null;
|
|
|
|
+ } else if (this.status == SItemStatus.Edit) {
|
|
|
|
+ // 编辑状态
|
|
|
|
+ this.status = SItemStatus.Normal;
|
|
|
|
+ }
|
|
|
|
+ this.update();
|
|
|
|
+ } // Function cancelOperate()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * Item对象边界区域
|
|
|
|
+ *
|
|
|
|
+ * @return SRect
|
|
|
|
+ */
|
|
|
|
+ boundingRect(): SRect {
|
|
|
|
+ if (this.pointList.length) {
|
|
|
|
+ this.minX = this.pointList[0].x;
|
|
|
|
+ this.maxX = this.pointList[0].x;
|
|
|
|
+ this.minY = this.pointList[0].y;
|
|
|
|
+ this.maxY = this.pointList[0].y;
|
|
|
|
+ this.pointList.forEach(it => {
|
|
|
|
+ let x = it.x,
|
|
|
|
+ y = it.y;
|
|
|
|
+ if (x < this.minX) {
|
|
|
|
+ this.minX = x;
|
|
|
|
+ }
|
|
|
|
+ if (y < this.minY) {
|
|
|
|
+ this.minY = y;
|
|
|
|
+ }
|
|
|
|
+ if (x > this.maxX) {
|
|
|
|
+ this.maxX = x;
|
|
|
|
+ }
|
|
|
|
+ if (y > this.maxY) {
|
|
|
|
+ this.maxY = y;
|
|
|
|
+ }
|
|
|
|
+ });
|
|
|
|
+ }
|
|
|
|
+ return new SRect(
|
|
|
|
+ this.minX,
|
|
|
|
+ this.minY,
|
|
|
|
+ this.maxX - this.minX,
|
|
|
|
+ this.maxY - this.minY
|
|
|
|
+ );
|
|
|
|
+ } // Function boundingRect()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * 判断点是否在区域内
|
|
|
|
+ *
|
|
|
|
+ * @param x
|
|
|
|
+ * @param y
|
|
|
|
+ */
|
|
|
|
+ contains(x: number, y: number): boolean {
|
|
|
|
+ let arr = this.pointList;
|
|
|
|
+ if (arr.length < 3 || !SPolygonUtil.pointIn(x, y, arr)) {
|
|
|
|
+ return false;
|
|
|
|
+ }
|
|
|
|
+ return true;
|
|
|
|
+ } // Function contains()
|
|
|
|
+
|
|
|
|
+ /**
|
|
|
|
+ * Item绘制操作
|
|
|
|
+ *
|
|
|
|
+ * @param painter painter对象
|
|
|
|
+ */
|
|
|
|
+ onDraw(painter: SPainter): void {
|
|
|
|
+ this.scenceLen = painter.toPx(this.len);
|
|
|
|
+ // 当状态为展示状态
|
|
|
|
+ if (this.status == SItemStatus.Normal) {
|
|
|
|
+ // 闭合多边形
|
|
|
|
+ this.drawShowPolygon(painter, this.pointList);
|
|
|
|
+ } else if (this.status == SItemStatus.Create) {
|
|
|
|
+ // 创建状态
|
|
|
|
+ this.drawCreatePolygon(painter, this.pointList);
|
|
|
|
+ } else {
|
|
|
|
+ // 编辑状态
|
|
|
|
+ this.drawEditPolygon(painter, this.pointList);
|
|
|
|
+ }
|
|
|
|
+ } // Function onDraw()
|
|
|
|
+}
|