using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        bool meine_Zeichnung;
        List<List<Point>> Punkte;
        public Form1()
        {
            InitializeComponent();
        }


        public void Form1_Load(object sender, EventArgs e)
        {
            Punkte = new List<List<Point>>();
            this.DoubleBuffered = true;
            this.MouseDown += new MouseEventHandler(Form1_MouseDown);
            this.MouseUp += new MouseEventHandler(Form1_MouseUp);
            this.MouseMove += new MouseEventHandler(Form1_MouseMove);
            this.Paint += new PaintEventHandler(Form1_Paint);
        }

        void Form1_MouseDown(object sender, MouseEventArgs e)
        {
            Punkte.Add(new List<Point>());
            meine_Zeichnung = true;
        }

        void Form1_MouseUp(object sender, MouseEventArgs e)
        {
            meine_Zeichnung = false;
        }

        void Form1_MouseMove(object sender, MouseEventArgs e)
        {
            if (meine_Zeichnung)
            {
                Punkte[Punkte.Count - 1].Add(e.Location);
                this.Refresh(); //Löst Paint Ereignis aus
            }
        }

        void Form1_Paint(object sender, PaintEventArgs e)
        {
            foreach (List<Point> points in Punkte)
            {
                if (points.Count > 1)
                    e.Graphics.DrawLines(new Pen(new SolidBrush(Color.Black), 3), points.ToArray());
            }
        }


        private void zeichnen_Click(object sender, EventArgs e)
        {
            serialPort1.Open();
            serialPort1.Write("1");

            int x = 0;
            int y = 1;

            string[] punkt = new string[100000];

            string punkte = Convert.ToString(Punkte);

            punkt = punkte.Split();


            string nachricht = serialPort1.ReadLine();


            if (nachricht == "Punkt_bitte")
            {
                serialPort1.Write(punkt[x]);
                serialPort1.Write(punkt[y]);

                x = x + 2;
                y = y + 2;
            }

            if (nachricht == "seriellen_Port_schließen")
            {
                serialPort1.Close();
            }
        }


        private void Anfangsposition_Click(object sender, EventArgs e)
        {
            serialPort1.Open();
            serialPort1.Write("2");
            serialPort1.Close();
        }


        //private void löschen_Click(object sender, EventArgs e)
        //{
            //Graphics grafik = this.CreateGraphics();
            //grafik.Clear(this.BackColor);
        //}
    }
}