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

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
         Bitmap pom = new Bitmap(pictureBox1.Width, pictureBox1.Height);
         int y2, y1, x1, x2;
         x1 = (int)numericUpDown1.Value;
         x2 = (int)numericUpDown3.Value;
         y1 = (int)numericUpDown2.Value;
         y2 = (int)numericUpDown4.Value;
         float m, y,dy, dx;
         int start = System.Environment.TickCount;
            dy = y2 - y1;
            dx = x2 - x1;

            m = dy / dx;

            for (int i = 0; i < 10000; i++)
            {

              y = y1;
                for (int x = x1; x <= x2; x++)
                {
                    pom.SetPixel(x, (int)Math.Round(y), Color.Red);
                    y += m;
                }
            }
                pictureBox1.Image = pom;
                int stop = System.Environment.TickCount;
                MessageBox.Show("Obliczenia przyrostowe trwały " + (stop - start).ToString() + "ms");
            }

        private void button2_Click(object sender, EventArgs e)
        {
            Bitmap pom = new Bitmap(pictureBox1.Width, pictureBox1.Height);
            int dx, dy,incrE, incrNE, d ,x ,y;
            int x2, x1, y2, y1;

            x1 = (int)numericUpDown1.Value;
            x2 = (int)numericUpDown3.Value;
            y1 = (int)numericUpDown2.Value;
            y2 = (int)numericUpDown4.Value;
            int start = System.Environment.TickCount;

            dx = x2 - x1;
            dy = y2 - y1;
            d = 2 * dy - dx;
            incrE = dy * 2;
            incrNE = (dy - dx) * 2;
            for (int i = 0; i < 10000; i++)
            {
            x = x1;
            y = y1;
            pom.SetPixel(x, y, Color.Aqua);

            while (x < x2)
                {
                    if (d <= 0)
                    {
                        d += incrE;
                        x++;
                    }
                    else
                    {
                        d += incrNE;
                        x++;
                        y++;
                    }
                    pom.SetPixel(x, y, Color.Aqua);
                }

            }
            int stop = System.Environment.TickCount;

            pictureBox1.Image = pom;
            MessageBox.Show("Obliczenia przyrostowe trwały " + (stop - start).ToString() + "ms");
            }



    }
}