function init(g){
    var style = {
        stroke:'#46BF86',
        lineWidth: 2
    };
    style.shadow = '0,0,10,#fff';//阴影
    //style.opacity = 0.2;			
    //style.lineCap = 'round';

    //创建一个方块
    var rect = g.createShape('rect',{
        style:style,
        position: {x:100,y:100}, //左上角坐标
        width:100,
        height:100
    });
    g.children.add(rect);

    //绘制，可以用requestAnimationFrame动态刷新
    function update() {
        g.redraw();
        //requestAnimationFrame(update);
    }
    update();
}

//创建一条线
var line = graph.createLine({x:10,y:200},{x:80,y:120},style);
//鼠标移到上面显示不同的样式			
line.bind('mouseover',function(evt) {
    this.style.stroke = 'rgba(39,72,188,0.5)';
    this.cursor('pointer');
    this.neadUpdate = true; //需要刷新
});

var path = graph.createPath(null, style);
path.points.push({x:10,y:10});
path.points.push({x:10,y:60});
path.points.push({x:80,y:20});
path.points.push({x:90,y:80});
path.points.push({x:80,y:80});

//创建一个椭圆，指定不同的宽高就为椭圆。如果相同或指定半径则为圆。
var arc1 = g.createShape('arc', {
    style: style,
    center: {x:100, y:150},
    width: 120,
    height: 80
});		

//带箭头的直线
var shape = g.createShape('Arrowline', {
    style:style,
    start: {x:100,y:100},
    end: {x: 200, y: 350}
});	
//一起结束点和一个角度angle可以决定一个箭头，如果不填angle，则会用start和end来计算角度
var arrow = g.createShape('arrow', {
    style:style,
    start: {x:150, y:120},
    end: {x: 160, y: 150}
    //angle: Math.PI/2, //箭头角度  可以不填
    //offsetX: 5, //箭头X偏移量
    //offsetY: 8 //箭头Y偏移量
});	

//一个固定的bezier曲线
var bezier = g.createShape('bezier', { style: style, points: [p0, p1, p2, p3, p4] });

var style = {
    src: 'http://mat1.gtimg.com/www/qq2018/imgs/qq_logo_2018x2.png'
};
style.shadow = '0,0,10,#fff';
//style.opacity = 0.2;		

//创建一个image
var img = g.createShape('image',{
    style:style,
    position: {x:100,y:100}
});	
//设置图片可以用鼠标移动		
img.canMove(true);

var style = {
    stroke: '#effaaa',
    fill: '#fff',
    textAlign: 'center', //水平居中
    textBaseline: 'middle', //垂直居中
    fontSize: 24,
    fontFamily: 'Arial',
    border: {
        left:1,
        top:1,
        right:1,
        bottom:1,
        //边框样式
        style: {
            stroke: 'red' //颜色
        }
    }, //边框
    shadow: '0,0,10,#fff'
};
//style.opacity = 0.2;		

//创建一个label
var label = g.createShape('label',{
    style:style,
    position:{x:200,y:150},
    text:'test label',
    width:120,
    height:80
});		

var prismatic = g.createShape('prismatic',{
    style:style,
    center:{x:200,y:150},
    width:120,
    height:80
});		

var style = {
    stroke: 'red',
    fill: 'yellow',
    lineWidth: 2, //边线宽
    //小方块样式
    rectStyle: {
        stroke: 'green', //小方块边颜色
        fill: 'transparent',//小方块填充色
        lineWidth: 1, //小方块线宽
        close: true
    }
};
//style.opacity = 0.2;		

//创建一个resize
var resize = g.createShape('resize', {
    style: style,
    position: {x:200, y:150},
    width: 120,
    height: 80
});	
//大小改变事件
resize.on('resize', function() {
    console.log(arguments);
});	

import {jmGraph} from "../../src/jmGraph.js";
import {jmPath} from "../../src/shapes/jmPath.js";
/**
 * 测试
 */
class jmTest extends jmPath {
    constructor(params) {
        if(!params) params = {};
        super(params);
        this.center = params.center || {x:0, y:0};
        this.radius = params.radius || 0;
    }   

    //定义属性 
    /**
     * 中心点
     * point格式：{x:0,y:0,m:true}
     * @property center
     * @type {point}
     */
    get center() {
        return this.property('center');
    }
    set center(v) {
        return this.property('center', v);
    }
    /**
    * 半径
    * @property radius
    * @type {number}
    */
    get radius() {
        return this.property('radius');
    }
    set radius(v) {
        return this.property('radius', v);
    }

    /**
    * 初始化图形点
    * 控件都是由点形成
    * 
    * @method initPoint
    * @private
    * @for jmArc
    */
    initPoints() {
        //可以获取当前控件的左上坐标，可以用来画相对位置
        var location = this.getLocation();//获取位置参数
        
        var cx = location.center.x ;
        var cy = location.center.y ;
    
        this.points = [];

        //简单的画一个X

        //根据半径计算x,y偏移量
        //由于是圆，偏移量相同
        var offw = Math.sqrt(location.radius * location.radius / 2);
        //左上角到右下角对角线
        this.points.push({x:cx - offw, y:cy-offw}, {x:cx + offw, y:cy+offw});

        //左下角到右上角对角线
        //画完上面的线后，需要重新移到这条线的起点，指定m:true即可
        this.points.push({x:cx - offw, y:cy+offw, m:true}, {x:cx + offw, y:cy-offw});

        return this.points;
    }
} 

/**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function () {
    
    //这里引用jmgraph
    let jmGraph = require('../../utils/jmgraph');

    var self = this;

    var g = jmGraph.create('mycanvas', {
        style: {
          fill: '#000'
        },
        width: 400,
        height: 600
      });
    init(g);

    function init(g) {
      //g.style.fill = '#000'; //画布背景
      var style = {
        stroke: '#46BF86',
        fill: '#556662',
        lineWidth: 2
      };
      style.shadow = '0,0,10,#fff';
      //style.opacity = 0.2;			
      //style.lineCap = 'round';

      //创建一个方块
      var rect = g.createShape('rect', {
        style: style,
        position: { x: 100, y: 100 },
        width: 100,
        height: 100
      });
      rect.canMove(true);
      g.children.add(rect);

      function update() {
        if (g.needUpdate) g.redraw();
        setTimeout(update, 20);
      }

      update();

      //初始化jmGraph事件
      //把小程序中的canvas事件交给jmGraph处理
      this.canvastouchstart = function (...arg) {
        return g.eventHandler.touchStart(...arg);
      }
      this.canvastouchmove = function (...arg) {
        return g.eventHandler.touchMove(...arg);
      }
      this.canvastouchend = function (...arg) {
        return g.eventHandler.touchEnd(...arg);
      }
      this.canvastouchcancel = function (...arg) {
        return g.eventHandler.touchCancel(...arg);
      }
    }
  }