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 Afis_7seg
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        System.Drawing.Graphics zona_desen;
        string txt, val_af;
        int dig;
        int[,] car;
        int[] car_z;
        static String[] Nume_porturi = new String[11];
        int x0, y0, w;
        private void afis_7seg(Graphics desen, int px0, int py0, int dig_w, int dig)
        {
            System.Drawing.Pen cr_verde, cr_gri;
            cr_verde = new System.Drawing.Pen(System.Drawing.Color.Red, dig_w / 4);
            cr_gri = new System.Drawing.Pen(System.Drawing.Color.WhiteSmoke, dig_w / 4);
            UInt16[] digit = new UInt16[10] { 123, 40, 93, 109, 46, 103, 119, 41, 127, 111 };
            int[] px = new int[7] { px0, px0, px0, px0 + dig_w, px0, px0 + dig_w, px0 };
            int[] px_f = new int[7] { px0 + dig_w, px0, px0 + dig_w, px0 + dig_w, px0, px0 + dig_w, px0 + dig_w };
            int[] py = new int[7] { py0, py0, py0 + dig_w, py0, py0 + dig_w, py0 + dig_w, py0 + 2 * dig_w };
            int[] py_f = new int[7] { py0, py0 + dig_w, py0 + dig_w, py0 + dig_w, py0 + 2 * dig_w, py0 + 2 * dig_w, py0 + 2 * dig_w };
            UInt16 nr = digit[dig];
            int i;
            // sterg digit
            for (i = 6; i >= 0; i--)
                desen.DrawLine(cr_gri, px[i], py[i], px_f[i], py_f[i]);
            for (i = 6; i >= 0; i--)
            {
                UInt16 bit = Convert.ToUInt16((nr >> (i)) & 1);
                if (bit == 1)
                    desen.DrawLine(cr_verde, px[i], py[i], px_f[i], py_f[i]);
            }
        } 

        private void Form1_Load(object sender, EventArgs e)
        {
            zona_desen = this.CreateGraphics();
            // pozitie afisaj 7 seg
            x0 = 200;
            y0 = 15;
            w = 20;
            // Listez porturile seriale
            Nume_porturi = System.IO.Ports.SerialPort.GetPortNames();
            this.Porturi_s.Items.Clear();

            //Adaug porturile exixtente

            for (int i = 0; i < Nume_porturi.Length; i++)
            {
                this.Porturi_s.Items.Add(Nume_porturi[i]);
            }

            //Pozitionarea listei pe primul element
            this.Porturi_s.SelectedIndex = 0;
            this.label3.Text = "Conectati-va la portul serial!";
            car_z = new int[10] { 123, 40, 93, 109, 46, 103, 119, 41, 127, 111 };
            car = new int[10, 8];
            // caracterul 0
            car[0, 0] = 1;
            car[0, 1] = 1;
            car[0, 2] = 0;
            car[0, 3] = 1;
            car[0, 4] = 1;
            car[0, 5] = 1;
            car[0, 6] = 1;
            car[0, 7] = 0;

            // caracterul 1
            car[1, 0] = 0;
            car[1, 1] = 0;
            car[1, 2] = 0;
            car[1, 3] = 1;
            car[1, 4] = 0;
            car[1, 5] = 1;
            car[1, 6] = 0;
            car[1, 7] = 0;

            // caracterul 2
            car[2, 0] = 1;
            car[2, 1] = 0;
            car[2, 2] = 1;
            car[2, 3] = 1;
            car[2, 4] = 1;
            car[2, 5] = 0;
            car[2, 6] = 1;
            car[2, 7] = 0;

            // caracterul 3
            car[3, 0] = 1;
            car[3, 1] = 0;
            car[3, 2] = 1;
            car[3, 3] = 1;
            car[3, 4] = 0;
            car[3, 5] = 1;
            car[3, 6] = 1;
            car[3, 7] = 0;

            // caracterul 4
            car[4, 0] = 0;
            car[4, 1] = 1;
            car[4, 2] = 1;
            car[4, 3] = 1;
            car[4, 4] = 0;
            car[4, 5] = 1;
            car[4, 6] = 0;
            car[4, 7] = 0;

            // caracterul 5
            car[5, 0] = 1;
            car[5, 1] = 1;
            car[5, 2] = 1;
            car[5, 3] = 0;
            car[5, 4] = 0;
            car[5, 5] = 1;
            car[5, 6] = 1;
            car[5, 7] = 0;

            // caracterul 6
            car[6, 0] = 1;
            car[6, 1] = 1;
            car[6, 2] = 1;
            car[6, 3] = 0;
            car[6, 4] = 1;
            car[6, 5] = 1;
            car[6, 6] = 1;
            car[6, 7] = 0;

            // caracterul 7
            car[7, 0] = 1;
            car[7, 1] = 0;
            car[7, 2] = 0;
            car[7, 3] = 1;
            car[7, 4] = 0;
            car[7, 5] = 1;
            car[7, 6] = 0;
            car[7, 7] = 0;

            // caracterul 8
            car[8, 0] = 1;
            car[8, 1] = 1;
            car[8, 2] = 1;
            car[8, 3] = 1;
            car[8, 4] = 1;
            car[8, 5] = 1;
            car[8, 6] = 1;
            car[8, 7] = 0;

            // caracterul 9

            car[9, 0] = 1;
            car[9, 1] = 1;
            car[9, 2] = 1;
            car[9, 3] = 1;
            car[9, 4] = 0;
            car[9, 5] = 1;
            car[9, 6] = 1;
            car[9, 7] = 0;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (this.serialPort1.IsOpen)
            {
                //metoda 1: utilizare matrice
                //val_af = "O" + (car[dig, 0] + 2 * car[dig, 1] + 4 * car[dig, 2] + 8 * car[dig, 3] + 16 * car[dig, 4] + 32 * car[dig, 5] + 64 * car[dig, 6] + 128 * car[dig, 7]).ToString();
                //metoda 2:utilizare vector
                val_af = "O" + car_z[dig];
                this.label4.Text = "Digit=" + dig.ToString();
                this.serialPort1.Write(val_af);
                this.label2.Text = "Tx=" + val_af;
                //txt = "";
                txt = this.serialPort1.ReadExisting();
                this.label1.Text = "Rx=" + txt;
                if (txt.Length > 0)
                {
                    //val = System.Convert.ToInt16(txt);
                }
            }
        }

        private void numericUpDown1_ValueChanged(object sender, EventArgs e)
        {
            dig = System.Convert.ToInt16(this.numericUpDown1.Value);
            afis_7seg(zona_desen, x0, y0, w, dig);
        }

        private void but_con_Click(object sender, EventArgs e)
        {
            // sterg afisaj 7 seg
            afis_7seg(zona_desen, x0, y0, w, 0);
            if (!this.serialPort1.IsOpen)
            {
                this.serialPort1.PortName = System.Convert.ToString(this.Porturi_s.Items[this.Porturi_s.SelectedIndex]);
                this.serialPort1.Open();
                this.label3.Text = "Portul a fost deschis";
            }
            else
            {
                this.label1.Text = "Portul este deja deschis deschis";
            }
            this.serialPort1.Write("AA");
        }
        private void but_dec_Click(object sender, EventArgs e)
        {
            this.serialPort1.Close();
            this.label3.Text = "Portul este deconectat!";
        }
    }
}