using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Grafika
{
    public partial class Form1 : Form
    {
        Color barva;
        Color vypln;
        
        public Form1()
        {
            InitializeComponent();
        }

        private void panel_kr_Paint(object sender, PaintEventArgs e)
        {
           Graphics kp = e.Graphics;
           
           if (radioButton_usecka.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                kp.DrawLine(pero, 50, 250, 1350, 250);
                kp.DrawLine(pero, 0, 0, 500, 250); 
            }

            if (radioButton_kruh.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                Brush stetec = new SolidBrush(vypln); 
                kp.FillEllipse(stetec, 400, 80, 400, 400);
                kp.DrawEllipse(pero, 400, 80, 400, 400);
            }

            if (radioButton_kruznice.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                kp.DrawEllipse(pero, 400, 80, 400, 400);
            }

            if (radioButton_elipsa.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                kp.DrawEllipse(pero, 400, 80, 600, 300);
            }

            if (radioButton_trojuhelnik.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                
                Point[] trojuhelnik = { new Point(50, 40), new Point(1200, 50), new Point(200, 450) };

                kp.DrawPolygon(pero, trojuhelnik);
            }

            if (radioButton_ctyruhelnik.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                kp.DrawRectangle(pero, 50, 50, 1000, 400);
            }

            if (radioButton_mnohouhelnik.Checked)
            {
                Pen pero = new Pen(barva);
                pero.Width = Convert.ToInt32(comboBox_tl.Text);
                Brush stetec = new SolidBrush(vypln);
                Brush stetec1 = new SolidBrush(Color.White);
                
                Point[] telo = {  new Point(500, 200),
                                  new Point(450, 500),
                                  new Point(550,500),
                                  new Point(500,200),                                                              
                                  };

                Point[] stin = {  new Point(510, 180),
                               new Point(460,490),
                               new Point(480, 490),
                               new Point(510,180),                                  
                               };

                kp.FillPolygon(stetec, telo);
                kp.FillPolygon(stetec1, stin);
                kp.DrawPolygon(pero, telo);
                kp.FillEllipse(stetec, 450, 50, 100, 100);
                kp.FillEllipse(stetec1, 460, 70, 50, 50);
                kp.DrawEllipse(pero, 450, 50, 100, 100);
            }

        }

        private void button_kresli_Click(object sender, EventArgs e)
        {                       
            panel_kr.Refresh();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            radioButton_usecka.Checked = false;
            radioButton_trojuhelnik.Checked = false;
            radioButton_ctyruhelnik.Checked = false;
            radioButton_mnohouhelnik.Checked = false;
            radioButton_kruznice.Checked = false;
            radioButton_elipsa.Checked = false;
            radioButton_kruh.Checked = false;
            radioButton_nic.Checked = true;
            
        }

        private void textBox_barva_Click(object sender, EventArgs e)
        {
            if (colorDialog1.ShowDialog() == DialogResult.OK)
            {
                barva = colorDialog1.Color;
                textBox_barva.BackColor = colorDialog1.Color;
            }
        }

        private void textBox_vypln_Click(object sender, EventArgs e)
        {
            if (colorDialog1.ShowDialog() == DialogResult.OK)
            {
                vypln = colorDialog1.Color;
                textBox_vypln.BackColor = colorDialog1.Color;
            }
        }


        private void radioButton_nic_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_usecka_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_trojuhelnik_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_ctyruhelnik_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_mnohouhelnik_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_kruznice_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_elipsa_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }

        private void radioButton_kruh_CheckedChanged(object sender, EventArgs e)
        {
            panel_kr.Refresh();
        }
        
    }
}