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 WindowsFormsApplication38
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            Font verFont = new Font("Verdana", 10, FontStyle.Bold);
            Font horzFont = new Font("Verdana", 10, FontStyle.Bold);
            SolidBrush vertBrush = new SolidBrush(Color.Black);
            SolidBrush horzBrush = new SolidBrush(Color.Blue);
            Pen blackPen = new Pen(Color.Black, 2);
            Pen bluePen = new Pen(Color.Blue, 2);
            g.DrawLine(blackPen, 50, 250, 50, 25);
            g.DrawLine(bluePen, 50, 220, 250, 220);
            for (int i = 0; i < 11; i++)
            {
                g.DrawString(i.ToString(),
                    horzFont, horzBrush, 30 + i * 20, 220);
            }
            StringFormat vertStrFormat = new StringFormat();
            vertStrFormat.FormatFlags = StringFormatFlags.DirectionVertical;
            for (int i = 0; i < 11; i++)
            {
                g.DrawString("-", horzFont, horzBrush,
                    50 + i * 20, 212, vertStrFormat);
            }
            int x = 0;
            g.DrawString("100-", verFont, vertBrush, 20, 20);
            for (int i = 90; i > 0; i -= 10)
            {
                x += 20;
                g.DrawString(i.ToString() + " -", verFont, vertBrush, 25, 20 + x);
            }

            // Odbacivanje predmeta
            verFont.Dispose();
            horzFont.Dispose();
            vertBrush.Dispose();
            horzBrush.Dispose();
            blackPen.Dispose();
            bluePen.Dispose();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();
            Font verFont = new Font("Verdana", 10, FontStyle.Bold);
            Font horzFont = new Font("Verdana", 10, FontStyle.Bold);
            SolidBrush vertBrush = new SolidBrush(Color.Black);
            SolidBrush horzBrush = new SolidBrush(Color.Blue);
            Pen blackPen = new Pen(Color.Black, 2);
            Pen bluePen = new Pen(Color.Blue, 2);
            g.Clear(Color.White);
            g.DrawLine(blackPen, 50, 220, 50, 25);
            g.DrawLine(bluePen, 50, 220, 250, 220);
            // Crtanje po x-osi
            for (int i = 0; i < 11; i++)
            {
                g.DrawString(i.ToString(),
                    horzFont, horzBrush, 30 + i * 20, 220);
            }
            // Crtanje vertikalnih stringova
            StringFormat vertStrFormat = new StringFormat();
            vertStrFormat.FormatFlags = StringFormatFlags.DirectionVertical;
            for (int i = 0; i < 10; i++)
            {
                g.DrawString("-", horzFont, horzBrush,
                    50 + i * 20, 212, vertStrFormat);
            }
            // Crtanje po y-osi
            int x = 0;
            g.DrawString("100-", verFont, vertBrush, 20, 20);
            for (int i = 90; i > 0; i -= 10)
            {
                x += 20;
                g.DrawString(i.ToString() + " -", verFont, vertBrush, 25, 20 + x);
            }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();
            Pen blackPen = new Pen(Color.Black, 2);
            g.DrawLine(blackPen, 70, 120, 150, 200);

        }

        private void button3_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();
            Pen blackPen = new Pen(Color.Black, 2);
            g.DrawLine(blackPen, 150, 200, 150, 150);
        }

        private void button4_Click(object sender, EventArgs e)
        {
            Graphics g = this.CreateGraphics();
            Pen blackPen = new Pen(Color.Black, 2);
            g.DrawLine(blackPen, 150, 150, 70, 120);
        }
    }
}