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 trabalho_calculadora_ok_
{
    public partial class Form1 : Form
    {
        double v1, v2, total;
        char operacao;
        public Form1()
        {
            InitializeComponent();
        }

        private void btn1_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 1;
        }

        private void btn2_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 2;
        }

        private void btn3_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 3;
        }

        private void btn4_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 4;
        }

        private void btn5_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 5;
        }

        private void btn6_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 6;
        }

        private void btn7_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 7;
        }

        private void btn8_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 8;
        }

        private void btn9_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 9;
        }

        private void btn0_Click(object sender, EventArgs e)
        {
            txtvisor.Text = txtvisor.Text + 0;
        }

        private void btnmais_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '+';
        }

        private void btnmenos_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '-';
        }

        private void btnvezes_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '*';
        }

        private void dtndividir_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '/';
        }

        private void btnigual_Click(object sender, EventArgs e)
        {
             v2 = Convert.ToDouble(txtvisor.Text);
             if(operacao == '+')
             {
                 total = v1 + v2;
                 txtvisor.Text = Convert.ToString(total);
             }


             if (operacao == '-')
             {
                 total = v1 - v2;
                 txtvisor.Text = Convert.ToString(total);
             }

             if (operacao == '*')
             {
                 total = v1 * v2;
                 txtvisor.Text = Convert.ToString(total);
             }

             if (operacao == '/')
             {
                 total = v1 / v2;
                 txtvisor.Text = Convert.ToString(total);
             }

             total = Math.Pow(v1, v2);
             txtvisor.Text = Convert.ToString(total);

            if (operacao == '%')
            {

                total = v1 * v2 / 100;
                txtvisor.Text = Convert.ToString(total);

            }
        }

        private void btnlimpar_Click(object sender, EventArgs e)
        {
            txtvisor.Clear();
        }

        private void btnpotenciaa_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '^';
        }

        private void btnporcentagem_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            operacao = '%';
        }

        private void seno_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            total = Math.Sin(v1);
            txtvisor.Text = Convert.ToString(total);
        }

        private void btncosseno_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            total = Math.Cos(v1);
            txtvisor.Text = Convert.ToString(total);
        }

        private void tangente_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            total = Math.Tan(v1);
            txtvisor.Text = Convert.ToString(total);
        }

        private void btnlog_Click(object sender, EventArgs e)
        {
            v1 = Convert.ToDouble(txtvisor.Text);
            txtvisor.Clear();
            total = Math.Log10(v1);
            txtvisor.Text = Convert.ToString(total);
        }
    }
}