ihealth_ios/Inhealth/IHLineChartView.swift

//
//  IHLineChartView.swift
//  Inhealth
//
//  Created by weclouds on 2019/12/16.
//  Copyright © 2019 weclouds. All rights reserved.
//
 
import UIKit
import Charts

protocol IHLineChartViewDelegate : NSObjectProtocol{
    func lineChartDidSelected(_ index:Int) //选择
    func lineChartDeselected()  //取消选择
}
class IHLineChartView: UIView {
    weak var delegate :IHLineChartViewDelegate?
    var data:[String]? {
        didSet{
            if let data = self.data {
                var yData = [Double]()
                for str in data {
                    let a = String(format: "%.1f", Double(str)!)
                    let y = Double(a)
                    yData.append(y!)
                }
                rawDatas = [YRawData(yData: yData)]
                 self.setDataCount()
            }
        }
    }
    var xVals:[String]? = [String]()
    var rawDatas :[YRawData]? = [YRawData]()
    var avarageValue:String?{
        didSet{
            if let avarage = self.avarageValue {
                limitline.label = avarage
                limitline.limit = Double(avarage)!
            }
        }
    }
    
    var unit:String?{
        didSet{
            if let unit = self.unit {
                unitLabel.text = unit
            }
        }
    }
    lazy var lazyTimeRullerView:DYScrollRulerView = { [unowned self] in
        let unitStr = ""
        let rulersHeight = DYScrollRulerView.rulerViewHeight
        print(rulersHeight)
       
        var timerView = DYScrollRulerView.init(frame: CGRect.init(x: 0, y: 270 - 60, width: Int(KSCREENWIDTH), height: rulersHeight()), tminValue: 0, tmaxValue: 23, tstep: 0.2, tunit: unitStr, tNum: 5, viewcontroller:nil)
        timerView.setDefaultValueAndAnimated(defaultValue: 11, animated: true)
        timerView.backgroundColor = .clear
        timerView.bgColor       = UIColor.orange
        // #05CFAB
        timerView.triangleColor = UIColor(hexString: "#573F95")
    
        timerView.delegate      = self
        timerView.scrollByHand  = true
        return timerView
    }()
    
    lazy var unitLabel: UILabel = {
          let unitLabel = UILabel(frame: CGRect(x: 10, y: 0, width: 100, height: 15))
          unitLabel.text = "kWh"
        unitLabel.textColor = UIColor(hexString: "#A3AFBB")
        unitLabel.font = UIFont(name: Alibaba_PuHuiTi_Regular, size: 11)
        return unitLabel
    }()
    //限制线
    lazy var limitline: ChartLimitLine = {
        let limitline = ChartLimitLine(limit: 80, label: "80")
        limitline.lineWidth = 1.5
//        limitline.lineColor = UIColor(hexString: "#05CFAB")
        limitline.lineColor = UIColor.init(red: 197/255.0, green: 194/255.0, blue: 213/255.0, alpha: 1.0)
        limitline.lineDashLengths = [4,2]
        limitline.labelPosition = .topRight
//        limitline.valueTextColor = UIColor(hexString: "#05CFAB")
        limitline.valueTextColor = UIColor(hexString: "#573F95")
        limitline.valueFont = UIFont(name: Alibaba_PuHuiTi_Regular, size: 11)!
        return limitline
    }()
    
      var chartView: LineChartView?
     override init(frame: CGRect) {
          super.init(frame: frame)
          
          configChartView()
        
         addSubview(lazyTimeRullerView)
        
      }
      
      required init?(coder aDecoder: NSCoder) {
          fatalError("init(coder:) has not been implemented")
      }
      
    func configChartView()  {
        self.chartView = LineChartView(frame: CGRect(x: 0, y: 0, width: KSCREENWIDTH , height: 240))
        chartView?.backgroundColor = .white
        addSubview(chartView!)
        
        chartView!.addSubview(unitLabel)
        //设置间隙
        chartView?.setExtraOffsets(left: 10, top: 10, right: 10, bottom: 20)
        //代理方法
        chartView?.delegate = self
        chartView?.chartDescription?.enabled = false
        chartView?.scaleYEnabled = false
        chartView?.doubleTapToZoomEnabled = false
        chartView?.pinchZoomEnabled = false
        //s只滑动不滚动(系统gneiss默认先缩放后滑动)以及初始化时x轴就缩放1.5倍，就可以滑动了
        let scaleX = chartView?.viewPortHandler
        scaleX?.setMinimumScaleX(1.5)
        chartView?.xAxis.drawGridLinesEnabled = false
        
        let leftAxis = chartView?.leftAxis
        leftAxis?.enabled = true  //绘制右边轴
        leftAxis!.valueFormatter = LargeValueFormatter()
        leftAxis!.labelTextColor = UIColor(hexString: "#A3AFBB")
        leftAxis!.axisMinimum = 0 //最小值从0开始
        leftAxis!.spaceTop = 0.4
        
        leftAxis?.axisLineColor = .clear
        leftAxis!.drawGridLinesEnabled = true
        leftAxis?.gridColor = UIColor(hexString: "#C6CDD5")!
        leftAxis?.gridLineDashLengths = [4, 2]
        leftAxis!.gridLineWidth = 0.5 //x轴对应网格线的大小
        leftAxis?.drawLimitLinesBehindDataEnabled = true //  //添加限制线
        leftAxis!.labelCount = 4
        
        leftAxis!.addLimitLine(limitline)//添加到U轴上
        
        chartView?.rightAxis.enabled = false
        chartView?.legend.enabled = false
        
        //bottom Axis
        let bmxAxis = chartView?.xAxis
        
        bmxAxis?.enabled = true
        bmxAxis?.labelTextColor = UIColor.black
        bmxAxis?.labelPosition = .bottom
        bmxAxis?.forceLabelsEnabled = true
        bmxAxis?.avoidFirstLastClippingEnabled = false
        bmxAxis?.drawAxisLineEnabled = true
//        bmxAxis?.gridColor = UIColor(hexString: "#E3ECF5")!
        bmxAxis?.gridColor = .red
        bmxAxis?.gridLineDashLengths = [2, 1]
        bmxAxis?.drawLimitLinesBehindDataEnabled = false
        bmxAxis?.labelCount = 4
        chartView?.animate(xAxisDuration: 2)
        //  self.updateChartData()
        
    }
    
    func updateChartData() {
 
           var ydata = [Double]()
                     for i in 0..<31 {
                 let y = arc4random() % 100
                       xVals?.append("\(i)")
                       ydata.append(Double(y))
                       
             }
            
               rawDatas = [YRawData(yData: ydata)]
              
           self.setDataCount()
     
           
       }
       
       
 
      fileprivate  func setDataCount() {
        
           if xVals != nil {
            
               IHLineChartModel.share.gRealChartSetData(chartView!, xVals: xVals!, rawDatas: rawDatas!)
               chartView?.animate(xAxisDuration: 2)
            
           }
           
       }
}
 


extension IHLineChartView: ChartViewDelegate{
    func chartValueSelected(_ chartView: ChartViewBase, entry: ChartDataEntry, highlight: Highlight) {
//         chartView.setNeedsDisplay()
//              print("选中了一个数据 ")
//
//            var chartDataSet = LineChartDataSet()
//            chartDataSet = (chartView.data?.dataSets[0] as? LineChartDataSet)!
//             let values = chartDataSet.entries
//            chartDataSet.circleColors.removeAll()
//            let index = values.index(where: {$0.x == highlight.x})  //获取索引
//            for i in 0..<values.count {
//                chartDataSet.circleColors.append(.clear)
//            }
//
//        log.debug("chart.xAxis \(chartView.xAxis )")
//
//
//          //选中颜色
//          chartDataSet.circleColors[index! ] = UIColor(hexString: "#05CFAB")!
//
//
//
//        //重新渲染表格
//        chartView.data?.notifyDataChanged()
//        chartView.notifyDataSetChanged()
        
            var chartDataSet = LineChartDataSet()
            chartDataSet = (chartView.data?.dataSets[0] as? LineChartDataSet)!
            let values = chartDataSet.entries
      
            let index = values.index(where: {$0.x == highlight.x})  //获取索引
            if let delegate = self.delegate {
                delegate.lineChartDidSelected(index ?? 0)
            }
        
             let marker = chartView.marker as! XYMarkerView
             marker.isSeleted = true
                 
         
    }
    

       
       // Called when nothing has been selected or an "un-select" has been made.
    func chartValueNothingSelected(_ chartView: ChartViewBase){
        log.debug("取消选中数据")
        let marker = chartView.marker as! XYMarkerView
        marker.isSeleted = false
        if let delegate = self.delegate {
            delegate.lineChartDeselected()
        }
        //还原选中数据
//         var chartDataSet = LineChartDataSet()
//            chartDataSet = (chartView.data?.dataSets[0] as? LineChartDataSet)!
//             let values = chartDataSet.entries
//            chartDataSet.circleColors.removeAll()
//            for i in 0..<values.count {
//                 chartDataSet.circleColors.append(.clear)
//             }
//           let bmxAxis = chartView.xAxis
//
//
//
//      //  bmxAxis.labelTextColor = UIColor.black
//        //重新渲染表格
//           chartView.data?.notifyDataChanged()
//           chartView.notifyDataSetChanged()
    }
    
    /// Called when a user stops panning between values on the chart
    func chartViewDidEndPanning(_ chartView: ChartViewBase){
        log.debug("横向滑动")
    }
    

    
    // Callbacks when the chart is scaled / zoomed via pinch zoom gesture.
    func chartScaled(_ chartView: ChartViewBase, scaleX: CGFloat, scaleY: CGFloat){
        log.debug("缩放 -- scaleX - \(scaleX)   scaleY - \(scaleY)")
    }
    
    // Callbacks when the chart is moved / translated via drag gesture.
    func chartTranslated(_ chartView: ChartViewBase, dX: CGFloat, dY: CGFloat){
        log.debug("移动 -- dX - \(dX)   dY - \(dY)")
    }
       

}

extension IHLineChartView :DYScrollRulerDelegate{
    func dyScrollRulerViewValueChange(rulerView: DYScrollRulerView, value: Float) {
       // log.debug(value)
    }
    
    
}