CalculatorPoshva/Form1.cs

using BaseCalculator;
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;

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

        private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Text += "1";
        }

        private void button3_Click(object sender, EventArgs e)
        {
            textBox1.Text += "3";
        }

        private void button5_Click(object sender, EventArgs e)
        {
            textBox1.Text += "5";
        }

        private void button9_Click(object sender, EventArgs e)
        {
            textBox1.Text += "9";
        }

        private void button10_Click(object sender, EventArgs e)
        {
            textBox1.Text += "0";
        }

        private void button8_Click(object sender, EventArgs e)
        {
            textBox1.Text += "8";
        }

        private void button7_Click(object sender, EventArgs e)
        {
            textBox1.Text += "7";
        }

        private void button6_Click(object sender, EventArgs e)
        {
            textBox1.Text += "6";
        }

        private void button4_Click(object sender, EventArgs e)
        {
            textBox1.Text += "4";
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox1.Text += "2";
        }

        private void button11_Click(object sender, EventArgs e)
        {
            textBox1.Text += "+";

        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void label2_Click(object sender, EventArgs e)
        {

        }

        private void button12_Click(object sender, EventArgs e)
        {
            textBox1.Text += "-";
        }

        private void button16_Click(object sender, EventArgs e)
        {
            textBox1.Text += "(";
        }

        private void button15_Click(object sender, EventArgs e)
        {
            textBox1.Text += ")";
        }

        private void button14_Click(object sender, EventArgs e)
        {
            textBox1.Text += "/";
        }

        private void button13_Click(object sender, EventArgs e)
        {
            textBox1.Text += "*";
        }

       

        private void button18_Click(object sender, EventArgs e)
            {
                textBox1.Text += "%";
            }

        private void button19_Click(object sender, EventArgs e)
            {
                textBox1.Text = " ";
                textBox2.Text = " ";
            }

        private void button20_Click(object sender, EventArgs e)
            {
                textBox1.Text = " ";
            }

        private void button17_Click(object sender, EventArgs e)
        {
            try
            {
                string expression = textBox1.Text;
                if (expression.Contains('+'))
                {
                    string[] parts = expression.Split('+');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        int result = CalcClass.Add(a, b);
                        textBox2.Text = result.ToString();
                    }
                }


                else if (expression.Contains('-'))
                {
                    string[] parts = expression.Split('-');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        int result = CalcClass.Sub(a, b);
                        textBox2.Text = result.ToString();
                    }
                }

                else if (expression.Contains('*'))
                {
                    string[] parts = expression.Split('*');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        int result = CalcClass.Mult(a, b);
                        textBox2.Text = result.ToString();
                    }
                }

                else if (expression.Contains('/'))
                {
                    string[] parts = expression.Split('/');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        int result = CalcClass.Div(a, b);
                        textBox2.Text = result.ToString();
                        
                    }
                }
                else if (expression.Contains('²'))
                {
                    string[] parts = expression.Split('²');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        
                        double result = CalcClass.Square(a);
                        textBox2.Text = result.ToString();

                    }
                }

                else if (expression.Contains('!'))
                {
                    string[] parts = expression.Split('!');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);

                        long result = CalcClass.Factor((int)a);
                        textBox2.Text = result.ToString();

                    }
                }

                else if (expression.Contains('%'))
                {
                    string[] parts = expression.Split('%');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        long b = long.Parse(parts[1]);
                        int result = CalcClass.Mod(a, b);
                        textBox2.Text = result.ToString();

                    }
                }

                else if (expression.Contains('³'))
                {
                    string[] parts = expression.Split('³');
                    if (parts.Length == 2)
                    {

                        long a = long.Parse(parts[0]);
                        
                        double result = CalcClass.Cube(a);
                        textBox2.Text = result.ToString();

                    }
                }

                else
                {
                    textBox2.Text = "Ошибка, неверный формат выражения";
                }
            }

            catch (Exception ex)
            {
                textBox2.Text = $"ошибка: {ex.Message}";
            }
        }

        private void button20_Click_1(object sender, EventArgs e)
        {
            
            if (this.BackColor == Color.FromArgb(192, 255, 255))
            {

                this.BackColor = Color.FromArgb(64, 64, 64);
                button20.Text = "🌑";
                label2.ForeColor = Color.White;
                label3.ForeColor = Color.White;
                
            }

            else
            {
                this.BackColor = Color.FromArgb(192, 255, 255);
                button20.Text = "☀";
                label2.ForeColor = Color.Black;
                label3.ForeColor = Color.Black;
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            
        }

        private void label3_Click(object sender, EventArgs e)
        {

        }

        private void button21_Click(object sender, EventArgs e)
        {
            {
                textBox1.Text += "²";
            }
        }

        private void button22_Click(object sender, EventArgs e)
        {
            {
                textBox1.Text += CalcClass.Pi;
            }
        }

        private void button23_Click(object sender, EventArgs e)
        {
            {
                textBox1.Text += "!";
            }
        }

        private void button24_Click(object sender, EventArgs e)
        {
            {
                textBox1.Text += "%";
            }
        }

        private void button25_Click(object sender, EventArgs e)
        {
            {
                textBox1.Text += "³";
            }
        }

        private void button26_Click(object sender, EventArgs e)
        {
            if (textBox1.Text.Length > 0)
                textBox1.Text = textBox1.Text.Remove(textBox1.Text.Length - 1);
            textBox2.Text = string.Empty;
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {

        }

        private void textBox1_TextChanged_1(object sender, EventArgs e)
        {

        }
    }
}