using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Diagnostics;
using System.Windows.Forms.DataVisualization.Charting;

namespace WEEK2
{
    public partial class Form1 : Form
    {
        #region global variables
        float readBuffer1;

        private string readBuffer = string.Empty;  // buffer to store characters


        #endregion
        public Form1()
        {
            InitializeComponent();                 //intialize form1
        }

        #region connect to serial port open port set parameters and run timer
        private void button1_Click(object sender, EventArgs e)

        {
            if (!serialPort1.IsOpen)
            {
                serialPort1.PortName = "COM4";          //look in your PC wich comport is connected      (device manager)
                serialPort1.Open();                     //open serialPort1
                richTextBox1.Text = "comport opened ";  //show in textbox that the comport is opened
                serialPort1.ReceivedBytesThreshold = 20; //threshold 20 bytes received  event trigger
                //serialPort1.NewLine = "\r";            //te onstabiel als ik deze laat staan.   // last char to be recognised
                serialPort1.DataReceived += new System.IO.Ports.SerialDataReceivedEventHandler(SerialPort1_DataReceived);
                //timer1.Enabled = true;
            }
        }

        #endregion

        #region read databuffer received
        private void SerialPort1_DataReceived(System.Object sender, System.IO.Ports.SerialDataReceivedEventArgs e)
        {

            byte[] data1 = new byte[serialPort1.BytesToRead];           //stukje code om binaire
            serialPort1.Read(data1, 0, data1.Length);                   //waardes te kunnen lezen
            readBuffer = System.Text.Encoding.UTF8.GetString(data1);    //en gebruiken.
            readBuffer1 = serialPort1.ReadByte();   //readByte

            Invoke(new EventHandler(DoUpdate));            //update

        }
        #endregion

        #region update the text in textbox enable timer for next
        public void DoUpdate(object sender, System.EventArgs e)
        {
            byte data = (byte)serialPort1.ReadByte();
            // double voltage = Math.Round(data * (5.0 / 255)); //berekening om de spanning weer te geven, ,2 voor 2 decimalen en round rond de cijfers af
            //readBuffer = voltage.ToString();  //convert voltage to string and put in readBuffer
            readBuffer = data.ToString();
            //richTextBox1.Text = readBuffer;//show value
            Volt.Text = readBuffer;         //show value on the label
        }

        #endregion

        private void Volt_Click(object sender, EventArgs e)
        {

        }

        #region button close; close serial port timer off give messagebox
        private void button2_Click_1(object sender, EventArgs e)
        {
            {
                serialPort1.Close();                        //close serialPort1
                richTextBox1.Text = "serial port closed";   //show text in richtextbox
                MessageBox.Show("Temperature meter Thiemo Hoek"); //show message box
                this.Close();       //close program
            }
        }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void chart1_Click(object sender, EventArgs e)
        {

            string x1 = Volt.Text;
            var chart = chart1.ChartAreas[0];
            chart.AxisX.IntervalType = DateTimeIntervalType.Number;

            chart.AxisX.LabelStyle.Format = "";
            chart.AxisY.LabelStyle.Format = "";
            chart.AxisY.LabelStyle.IsEndLabelVisible = true;
            chart.AxisX.Minimum = 0;
            chart.AxisX.Maximum = 20;
            chart.AxisY.Minimum = 0;
            chart.AxisY.Maximum = 50;
            chart.AxisX.Interval = 1;
            chart.AxisY.Interval = 5;

            chart1.Series.Add("degrees");
            chart1.Series["degrees"].ChartType = SeriesChartType.Line;
            chart1.Series["degrees"].Color = Color.Red;
            chart1.Series[0].IsVisibleInLegend = false;

            for(int x = 0; x<21; x++)
            {
                chart1.Series["degrees"].Points.AddXY(x,x1);

            }



        }
    }
}
        #endregion