MetalDetector/FormMain.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Threading;

namespace metaldetector
{
    public partial class FormMain : Form
    {
        [DllImport("kernel32.dll", SetLastError = true)]
        public static extern bool Beep(int frequency, int duration);


        public static Bitmap bmp0;
        public static bool SoundOn = false;
        public static int currentFreq = 1000;
        public static int realFreq = 1000;

        public static string cursorTextPos = "";
        public static string cursorTextColor = "";
        public static string cursorTextFreq = "";
        public static string cursorText = "";


//Показываем отладочные данные на lblCursor
        public void ShowCursorText()
        {
            cursorText = cursorTextPos + "\n"
                + cursorTextColor + "\n"
                + cursorTextFreq + "\n";

            this.lblCursor.Text = cursorText;
        }


        public static void Sound()
        {
            while (SoundOn)
            {
                //Beep(currentFreq, 500);
                //Thread.Sleep(1);
                Beep(realFreq, 500);
            }
        }

        public void GenerateMap()
        {
            int start_x = 0;
            int end_x = 0;
            int start_y = 0;
            int end_y = 0;

            //высота и ширина квадрата в пикселях
            int rect_width = 20;
            int rect_height = 20;

            int ferro_n = 3; //количество ферромагнетиков
            int semi_n = 2; //количество полупроводников


            Bitmap bmp1 = new Bitmap(picMap.Width, picMap.Height, PixelFormat.Format24bppRgb);
            Graphics g = Graphics.FromImage(bmp1);
            g.Clear(Color.Black);
            // Создаем объекты-кисти для закрашивания фигур
            SolidBrush sbDia = new SolidBrush(Color.Red); //диамагнетик
            SolidBrush sbPara = new SolidBrush(Color.Green); //парамагнетик
            SolidBrush sbFerro = new SolidBrush(Color.Blue); //ферромагнетик
            SolidBrush sbSemi = new SolidBrush(Color.Black); //полупроводник




            int x_n = picMap.Width / rect_width;
            int y_n = picMap.Height / rect_height;
            int n_count = x_n * y_n; //количество квадратов
            rtbLog.Text = rtbLog.Text + "Генерация. x_n: " + x_n.ToString() + "; y_n: " + y_n.ToString() + "\n";

            Random rnd = new Random();
            int r = 0;

            for (int i = 0; i < x_n; i++)
            {
                for (int j = 0; j < y_n; j++)
                {
                    start_x = i * rect_width;
                    end_x = start_x + rect_width;
                    start_y = j * rect_height;
                    end_y = start_y + rect_height;

                    r = rnd.Next(0, 2);
                    //rtbLog.Text = rtbLog.Text + "i: " + i.ToString() + "; j: " + j.ToString() + "; start_x: " + start_x.ToString() + "; start_y: " + start_y.ToString() + "; r: " + r.ToString() + "\n";
                    if (r == 0)
                    {
                        g.FillRectangle(sbDia, start_x, start_y, rect_width, rect_height);
                    } else
                    {
                        g.FillRectangle(sbPara, start_x, start_y, rect_width, rect_height);
                    }

                    //рисуем ферромагнетик
                    r = rnd.Next(0, n_count / ferro_n);
                    if (r == 0)
                    {
                        g.FillRectangle(sbFerro, start_x, start_y, rect_width, rect_height);
                    }

                    //рисуем полупроводник
                    r = rnd.Next(0, n_count / semi_n);
                    if (r == 0)
                    {
                        g.FillRectangle(sbSemi, start_x, start_y, rect_width, rect_height);
                    }


                }
            }

            bmp0 = (Bitmap)bmp1.Clone();
            picMap.Image = bmp1;
        }

        public FormMain()
        {
            InitializeComponent();

        }

        private void rbPass_CheckedChanged(object sender, EventArgs e)
        {
            if (rbPass.Checked) {
                trbFreqDelta.Enabled = true;
                lblFreqDelta.Enabled = true;
            } else {
                trbFreqDelta.Enabled = false;
                lblFreqDelta.Enabled = false;
            }

        }

        private void rbActive_CheckedChanged(object sender, EventArgs e)
        {
            if (rbPass.Checked)
            {
                trbFreqDelta.Enabled = true;
                lblFreqDelta.Enabled = true;
            }
            else
            {
                trbFreqDelta.Enabled = false;
                lblFreqDelta.Enabled = false;
            }

        }

        private void rbLocator_CheckedChanged(object sender, EventArgs e)
        {
            if (rbPass.Checked)
            {
                trbFreqDelta.Enabled = true;
                lblFreqDelta.Enabled = true;
            }
            else
            {
                trbFreqDelta.Enabled = false;
                lblFreqDelta.Enabled = false;
            }

        }




        private void picMap_MouseMove(object sender, MouseEventArgs e)
        {
            //позиция курсора

            //рисуем круг металлодетектора
            Bitmap bmp1 = (Bitmap)bmp0.Clone();
            Graphics g = Graphics.FromImage(bmp1);
            Pen myWind = new Pen(Color.Yellow, 4);
            //пассивный
            if (rbPass.Checked)
            {
                myWind = new Pen(Color.Yellow, 4);
                g.DrawEllipse(myWind, e.X - 11, e.Y - 11, 20, 20);
            }
            //активный
            if (rbActive.Checked)
            {
                myWind = new Pen(Color.Yellow, 1);
                g.DrawEllipse(myWind, e.X - 6, e.Y - 6, 10, 10);
                myWind = new Pen(Color.Magenta, 1);
                g.DrawEllipse(myWind, e.X - 11, e.Y - 11, 20, 20);

            }

            if (rbLocator.Checked)
            {
                myWind = new Pen(Color.Cyan, 1);
                g.DrawEllipse(myWind, e.X - 6, e.Y - 6, 10, 10);
                myWind = new Pen(Color.Cyan, 1);
                g.DrawEllipse(myWind, e.X - 11, e.Y - 11, 20, 20);

            }

            picMap.Image = bmp1;

            //цвет под курсором
            try
            {
                Color clr = bmp0.GetPixel(e.X, e.Y);
                byte r = clr.R;
                byte gr = clr.G;
                byte b = clr.B;

                cursorTextPos = "X: " + Convert.ToString(e.X) + "; Y: " + Convert.ToString(e.Y);
                cursorTextColor = "R: " + Convert.ToString(r) + "; G: " + Convert.ToString(gr) + "; B: " + Convert.ToString(b);

                //Перерасчет реальной частоты

                //пассивный
                if (rbPass.Checked)
                {
                    if ((r==0) && (gr==0) && (b==0))
                    {
                        realFreq = currentFreq / 10;
                    } else
                    {
                        realFreq = currentFreq + r / 255 * trbFreqDelta.Value * 3 - gr / 128 * trbFreqDelta.Value * 3;
                    }
                }

                cursorTextFreq = "Base Freq: " + currentFreq.ToString() + "; Real Freq: " + realFreq.ToString();
                ShowCursorText();

            }
            catch
            {
                cursorTextPos = "X: ; Y:";
                ShowCursorText();

            }



        }

        private void button1_Click(object sender, EventArgs e)
        {
            GenerateMap();
        }

        private void FormMain_Load(object sender, EventArgs e)
        {
            GenerateMap();
            currentFreq = trbFreq.Value * 500 + 500;

        }

        private void btnSoundOn_Click(object sender, EventArgs e)
        {
            SoundOn = !SoundOn;

            if(SoundOn)
            {
                btnSoundOn.Text = "Выключить звук";
                // создаем новый поток
                Thread myThread = new Thread(new ThreadStart(Sound));
                myThread.Start(); // запускаем поток

            }
            else
            {
                btnSoundOn.Text = "Включить звук";
            }
        }

        private void trbFreq_Scroll(object sender, EventArgs e)
        {
            currentFreq = trbFreq.Value * 500 + 500;
            cursorTextFreq = "Base Freq: " + currentFreq.ToString();
            ShowCursorText();

        }
    }
}