---

using System;
using System.Windows.Forms;

namespace Lab16_Variant10
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            // Заполняем ComboBox коэффициентами
            string[] coeffs = { "1.0", "1.5", "2.0", "2.5", "3.0" };
            cbA.Items.AddRange(coeffs);
            cbB.Items.AddRange(coeffs);
            cbC.Items.AddRange(coeffs);

            cbA.SelectedIndex = 0;
            cbB.SelectedIndex = 0;
            cbC.SelectedIndex = 0;

            // По умолчанию выбран Способ 1
            rbMethod1.Checked = true;

            // Подсказки
            toolTip1.SetToolTip(btnCalculate, "Выполнить расчёт по выбранному способу");
        }

        private void btnCalculate_Click(object sender, EventArgs e)
        {
            try
            {
                double a = double.Parse(cbA.Text);
                double b = double.Parse(cbB.Text);
                double c = double.Parse(cbC.Text);
                double x = double.Parse(tbX.Text);
                double y = double.Parse(tbY.Text);
                double z = double.Parse(tbZ.Text);

                // Обработка CheckBox
                if (!cbIncludeZ.Checked) z = 0;

                double W = 0;

                if (rbMethod1.Checked)
                {
                    // Способ 1: прямое вычисление
                    W = a * x + b * y + c * z;
                    lbHistory.Items.Add($"Способ 1: W = {W:F3}");
                }
                else
                {
                    // Способ 2: через массив + цикл
                    double[] coeffs = { a, b, c };
                    double[] vars = { x, y, z };
                    for (int i = 0; i < 3; i++)
                    {
                        W += coeffs[i] * vars[i];
                    }
                    lbHistory.Items.Add($"Способ 2 (цикл): W = {W:F3}");
                }

                lblResult.Text = $"Результат: W = {W:F3}";
            }
            catch (Exception ex)
            {
                MessageBox.Show("Ошибка ввода данных!\n" + ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void rbMethod1_CheckedChanged(object sender, EventArgs e)
        {
            if (rbMethod1.Checked)
                lblMethod.Text = "Выбран: Прямой расчёт";
        }

        private void rbMethod2_CheckedChanged(object sender, EventArgs e)
        {
            if (rbMethod2.Checked)
                lblMethod.Text = "Выбран: Расчёт через цикл";
        }

        private void cbIncludeZ_CheckedChanged(object sender, EventArgs e)
        {
            tbZ.Enabled = cbIncludeZ.Checked;
        }

        // Designer code (автогенерируется Visual Studio)
        private System.ComponentModel.IContainer components = null;
        private Label lblMethod, lblResult;
        private RadioButton rbMethod1, rbMethod2;
        private ComboBox cbA, cbB, cbC;
        private TextBox tbX, tbY, tbZ;
        private CheckBox cbIncludeZ;
        private Button btnCalculate;
        private ListBox lbHistory;
        private ToolTip toolTip1;

        private void InitializeComponent()
        {
            this.components = new System.ComponentModel.Container();
            this.lblMethod = new Label();
            this.lblResult = new Label();
            this.rbMethod1 = new RadioButton();
            this.rbMethod2 = new RadioButton();
            this.cbA = new ComboBox();
            this.cbB = new ComboBox();
            this.cbC = new ComboBox();
            this.tbX = new TextBox();
            this.tbY = new TextBox();
            this.tbZ = new TextBox();
            this.cbIncludeZ = new CheckBox();
            this.btnCalculate = new Button();
            this.lbHistory = new ListBox();
            this.toolTip1 = new ToolTip(this.components);

            // Настройка элементов (координаты и текст)
            this.Text = "ЛР16 Вариант 10 - Расчёт W";
            this.Size = new System.Drawing.Size(620, 520);

            this.lblMethod.Text = "Выберите способ расчёта:";
            this.lblMethod.Location = new System.Drawing.Point(20, 20);
            this.lblMethod.Size = new System.Drawing.Size(200, 20);

            this.rbMethod1.Text = "Способ 1: Прямой расчёт";
            this.rbMethod1.Location = new System.Drawing.Point(40, 50);
            this.rbMethod1.AutoSize = true;
            this.rbMethod1.CheckedChanged += new EventHandler(rbMethod1_CheckedChanged);

            this.rbMethod2.Text = "Способ 2: Через цикл";
            this.rbMethod2.Location = new System.Drawing.Point(40, 80);
            this.rbMethod2.AutoSize = true;
            this.rbMethod2.CheckedChanged += new EventHandler(rbMethod2_CheckedChanged);

            // Коэффициенты
            this.Controls.Add(new Label { Text = "a:", Location = new System.Drawing.Point(20, 130) });
            this.cbA.Location = new System.Drawing.Point(60, 127);
            this.cbA.Size = new System.Drawing.Size(100, 21);

            this.Controls.Add(new Label { Text = "b:", Location = new System.Drawing.Point(20, 160) });
            this.cbB.Location = new System.Drawing.Point(60, 157);
            this.cbB.Size = new System.Drawing.Size(100, 21);

            this.Controls.Add(new Label { Text = "c:", Location = new System.Drawing.Point(20, 190) });
            this.cbC.Location = new System.Drawing.Point(60, 187);
            this.cbC.Size = new System.Drawing.Size(100, 21);

            // Переменные
            this.Controls.Add(new Label { Text = "x:", Location = new System.Drawing.Point(220, 130) });
            this.tbX.Location = new System.Drawing.Point(260, 127);
            this.tbX.Size = new System.Drawing.Size(100, 21);

            this.Controls.Add(new Label { Text = "y:", Location = new System.Drawing.Point(220, 160) });
            this.tbY.Location = new System.Drawing.Point(260, 157);
            this.tbY.Size = new System.Drawing.Size(100, 21);

            this.Controls.Add(new Label { Text = "z:", Location = new System.Drawing.Point(220, 190) });
            this.tbZ.Location = new System.Drawing.Point(260, 187);
            this.tbZ.Size = new System.Drawing.Size(100, 21);

            this.cbIncludeZ.Text = "Включить z в расчёт";
            this.cbIncludeZ.Location = new System.Drawing.Point(220, 220);
            this.cbIncludeZ.Checked = true;
            this.cbIncludeZ.CheckedChanged += new EventHandler(cbIncludeZ_CheckedChanged);

            this.btnCalculate.Text = "Вычислить";
            this.btnCalculate.Location = new System.Drawing.Point(20, 260);
            this.btnCalculate.Size = new System.Drawing.Size(120, 40);
            this.btnCalculate.Click += new EventHandler(btnCalculate_Click);

            this.lblResult.Text = "Результат: W = ?";
            this.lblResult.Location = new System.Drawing.Point(170, 270);
            this.lblResult.Size = new System.Drawing.Size(300, 30);
            this.lblResult.Font = new System.Drawing.Font("Arial", 12, System.Drawing.FontStyle.Bold);

            this.lbHistory.Location = new System.Drawing.Point(20, 320);
            this.lbHistory.Size = new System.Drawing.Size(560, 150);

            this.Controls.Add(this.lblMethod);
            this.Controls.Add(this.rbMethod1);
            this.Controls.Add(this.rbMethod2);
            this.Controls.Add(this.cbA);
            this.Controls.Add(this.cbB);
            this.Controls.Add(this.cbC);
            this.Controls.Add(this.tbX);
            this.Controls.Add(this.tbY);
            this.Controls.Add(this.tbZ);
            this.Controls.Add(this.cbIncludeZ);
            this.Controls.Add(this.btnCalculate);
            this.Controls.Add(this.lblResult);
            this.Controls.Add(this.lbHistory);
        }

        protected override void Dispose(bool disposing)
        {
            if (disposing && (components != null))
            {
                components.Dispose();
            }
            base.Dispose(disposing);
        }
    }
}