File content as of revision 20:6d2af70c92ab:

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RPCSupport;
using RPCSupport.Streaming;

namespace RPCSupportTest
{
    public class StreamHelper
    {
        RPCClient rpcClient;
        IPlotView view;

        public StreamHelper(RPCClient rpcClient, IPlotView view)
        {
            this.view = view;
            this.rpcClient = rpcClient;
            this.rpcClient.streaming.PartialArrayIntAvailable += new EventHandler<PartialArrayIntAvailableEventArgs>(OnPartialArrayIntAvailable);
        }

        public void OnPartialArrayIntAvailable(object sender, PartialArrayIntAvailableEventArgs e)
        {
            if ((e.reportID & 0xF0) == PartialArrayIntAvailableEventArgs.PACKET_MAX30101)
                view.Display(e.array1);
        }

        public void Start(byte fifo_waterlevel_mark, byte sample_avg, byte sample_rate, byte pulse_width,
                                                                        byte red_led_current, byte accelRateParameter)
        {
            rpcClient.MAX30101.HRmode_init(fifo_waterlevel_mark, sample_avg, sample_rate, pulse_width, red_led_current, accelRateParameter);
        }

        public void Stop()
        {
            rpcClient.MAX30101.HRmode_stop();
        }

        bool started = false;
        public void OnStartStop(object sender, EventArgs e)
        {
            if (!started)
            {
                Start(0x0f, 0, 0, 3, 0x33, (byte)(0 + 4));
                started = true;
            }
            else
            {
                Stop();
            }

        }
    }

    public interface IPlotView
    {
        int Points { get; }
        void Display(int[] array);
        //void Display();
    }

    public class PlotView : IPlotView
    {
        int points;

        public int Points
        {
            get 
            {
                return points;
            }
        }

        public void Display(int[] array)
        {
            points += array.Length;
        }
    }

}