persagy-web-doc/docs/.vuepress/components/tuopu/items/SCircleItem.ts

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

/**
 * 圆
 *
 *  @author  韩耀龙 <han_yao_long@163.com>
 */
import { SGraphStyleItem, SGraphItem, SLineStyle } from "@persagy-web/graph"
import { SPainter, SColor, SFont, SPoint } from "@persagy-web/draw";

export class SCircleItem extends SGraphStyleItem {
    // 圆坐标
    set localtion(v) {
        this._localtion = new SPoint(v);
        this.update()
    }
    get localtion(): SPoint {
        return this._localtion
    }
    _localtion: SPoint = new SPoint(0, 0);
    // 圆半径
    set radius(v: number) {
        this._radius = v;
        this.update();
    }
    get radius(): number {
        return this._radius
    }
    _radius: number = 0;

    /**
     * 构造函数
     *
     * @param parent
     */
    constructor(parent: SGraphItem | null) {
        super(parent)
    }

    /**
    * Item 绘制操作
    *
    * @param painter    绘制对象
    */
    onDraw(painter: SPainter): void {
        painter.pen.color = this.strokeColor;
        painter.brush.color = this.fillColor;
        painter.pen.lineWidth = this.lineWidth;
        if (this.lineStyle == SLineStyle.Dashed) {
            painter.pen.lineDash = [
                painter.toPx(this.lineWidth * 3),
                painter.toPx(this.lineWidth * 7)
            ];
        } else if (this.lineStyle == SLineStyle.Dotted) {
            painter.pen.lineDash = [
                painter.toPx(this.lineWidth * 2),
                painter.toPx(this.lineWidth * 2)
            ];
        }

        painter.drawCircle(this.localtion.x, this.localtion.y, this.radius);
    } // Function onDraw()
}