persagy-web/persagy-web-big/src/items/floor/SHighlightItem.ts

/*
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 *        .!88~                                                                     All rights reserved.
 *
 * *********************************************************************************************************************
 */

import { SColor, SLine, SPainter, SPoint, SRect } from "@persagy-web/draw";
import { ItemOrder, ItemColor } from "../..";
import { SGraphItem } from "@persagy-web/graph";

/**
 * 吸附时高亮对象
 *
 * @author  郝建龙
 */
export class SHighlightItem extends SGraphItem {
    /** 对象与鼠标位置距离 */
    distance: number = 0;
    /** 对象类型 */
    private type: number = 1;

    /** 点对象数据-当吸附的为线时,此点为垂线与线段的交点 */
    _point: SPoint = new SPoint();
    get point(): SPoint {
        return this._point;
    } // Get point
    set point(v: SPoint) {
        this._point = v;
        this.type = 1;
        this.update();
    } // Set point

    /** 点对象数据 */
    _line: SLine = new SLine();
    get line(): SLine {
        return this._line;
    } // Get line
    set line(v: SLine) {
        this._line = v;
        this.type = 2;
        this.update();
    } // Set line

    /**
     * 构造函数
     *
     * @param   parent  指向父对象
     */
    constructor(parent: SGraphItem | null) {
        super(parent);
        this.visible = false;
        this.zOrder = ItemOrder.highLightOrder;
    } // Constructor

    /**
     * Item对象边界区域
     *
     * @return	SRect
     */
    boundingRect(): SRect {
        return new SRect(this.point.x, this.point.y, 10, 10);
    } // Function boundingRect()

    /**
     * Item绘制操作
     *
     * @param   painter painter对象
     */
    onDraw(painter: SPainter): void {
        if (this.type == 2) {
            painter.pen.color = ItemColor.highLightLineColor;
            painter.pen.lineWidth = painter.toPx(6);
            painter.drawLine(this.line);
        }
        painter.pen.color = SColor.Transparent;
        painter.brush.color = ItemColor.highLightPointColor;
        painter.drawCircle(this.point.x, this.point.y, painter.toPx(5));
    } // Function onDraw()
} // Class SHighlightItem