ZOki!

package gui;

import geometrija.Krug;
import geometrija.Kvadrat;
import geometrija.Linija;
import geometrija.Oblik;
import geometrija.Pravougaonik;
import geometrija.Tacka;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.EventQueue;
import java.awt.Graphics;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.PrintStream;
import java.util.ArrayList;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.EmptyBorder;

public class Paint
  extends JFrame
  implements ActionListener
{
  int pozicija = -1;
  int x;
  int y;
  int x1;
  int y1;
  int klik = 0;
  String nazivAlata = "Selekt ";
  public static final int xOfset = 125;
  public static final int yOfset = 62;
  boolean klik1 = true;
  ArrayList<Oblik> listaOblik = new ArrayList();
  private JPanel contentPane;

  public static void main(String[] args)
  {
    EventQueue.invokeLater(new Runnable()
    {
      public void run()
      {
        try
        {
          Paint frame = new Paint();
          frame.setVisible(true);
        }
        catch (Exception e)
        {
          e.printStackTrace();
        }
      }
    });
  }

  public Paint()
  {
    setDefaultCloseOperation(3);
    setBounds(100, 100, 450, 300);
    this.contentPane = new JPanel();
    this.contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
    setContentPane(this.contentPane);
    this.contentPane.setLayout(new BorderLayout(0, 0));

    JPanel pnlOpcije = new JPanel();
    this.contentPane.add(pnlOpcije, "West");
    GridBagLayout gbl_pnlOpcije = new GridBagLayout();
    gbl_pnlOpcije.columnWidths = new int[] { 61 };
    gbl_pnlOpcije.rowHeights = new int[] { 23 };
    gbl_pnlOpcije.columnWeights = new double[] { 1.0D, Double.MIN_VALUE };
    gbl_pnlOpcije.rowWeights = new double[] { 0.0D, 0.0D, 0.0D, 0.0D, 0.0D, Double.MIN_VALUE };
    pnlOpcije.setLayout(gbl_pnlOpcije);

    JButton btnTacka = new JButton("Tacka");
    btnTacka.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent arg0)
      {
        Paint.this.klik = 1;
      }
    });
    GridBagConstraints gbc_btnTacka = new GridBagConstraints();
    gbc_btnTacka.fill = 2;
    gbc_btnTacka.insets = new Insets(0, 0, 5, 0);
    gbc_btnTacka.anchor = 11;
    gbc_btnTacka.gridx = 0;
    gbc_btnTacka.gridy = 0;
    pnlOpcije.add(btnTacka, gbc_btnTacka);

    JButton btnLinija = new JButton("Linija");
    btnLinija.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        Paint.this.klik = 2;
      }
    });
    GridBagConstraints gbc_btnLinija = new GridBagConstraints();
    gbc_btnLinija.fill = 2;
    gbc_btnLinija.insets = new Insets(0, 0, 5, 0);
    gbc_btnLinija.gridx = 0;
    gbc_btnLinija.gridy = 1;
    pnlOpcije.add(btnLinija, gbc_btnLinija);

    JButton btnKrug = new JButton("Krug");
    btnKrug.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent arg0)
      {
        Paint.this.klik = 3;
      }
    });
    GridBagConstraints gbc_btnKrug = new GridBagConstraints();
    gbc_btnKrug.fill = 2;
    gbc_btnKrug.insets = new Insets(0, 0, 5, 0);
    gbc_btnKrug.gridx = 0;
    gbc_btnKrug.gridy = 2;
    pnlOpcije.add(btnKrug, gbc_btnKrug);

    JButton btnKvadrat = new JButton("Kvadrat");
    btnKvadrat.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        Paint.this.klik = 4;
      }
    });
    GridBagConstraints gbc_btnKvadrat = new GridBagConstraints();
    gbc_btnKvadrat.fill = 2;
    gbc_btnKvadrat.insets = new Insets(0, 0, 5, 0);
    gbc_btnKvadrat.gridx = 0;
    gbc_btnKvadrat.gridy = 3;
    pnlOpcije.add(btnKvadrat, gbc_btnKvadrat);

    JButton btnPravougaonik = new JButton("Pravougaonik");
    btnPravougaonik.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent e)
      {
        Paint.this.klik = 5;
      }
    });
    GridBagConstraints gbc_btnPravougaonik = new GridBagConstraints();
    gbc_btnPravougaonik.gridx = 0;
    gbc_btnPravougaonik.gridy = 4;
    pnlOpcije.add(btnPravougaonik, gbc_btnPravougaonik);

    JPanel pnlRadnaPovrsia = new JPanel();
    this.contentPane.add(pnlRadnaPovrsia, "Center");
    pnlRadnaPovrsia.setLayout(new BorderLayout(0, 0));

    JPanel panel = new JPanel();
    panel.addMouseListener(new MouseAdapter()
    {
      public void mouseClicked(MouseEvent e)
      {
        if ((Paint.this.klik == 2) && (Paint.this.klik1))
        {
          Paint.this.x1 = e.getX();
          Paint.this.y1 = e.getY();
          Paint.this.klik1 = false;
        }
        else
        {
          Paint.this.klik1 = true;
          Paint.this.x = e.getX();
          Paint.this.y = e.getY();
          Paint.this.repaint();
        }
        System.out.println(Paint.this.x + " " + Paint.this.y);
      }
    });
    panel.setBackground(Color.WHITE);
    pnlRadnaPovrsia.add(panel);

    JPanel pnlIzmena = new JPanel();
    this.contentPane.add(pnlIzmena, "North");
    GridBagLayout gbl_pnlIzmena = new GridBagLayout();
    gbl_pnlIzmena.columnWidths = new int[] { 181, 0, 61 };
    gbl_pnlIzmena.rowHeights = new int[] { 23 };
    gbl_pnlIzmena.columnWeights = new double[] { 0.0D, 1.0D, 0.0D, 0.0D, 0.0D, Double.MIN_VALUE };
    gbl_pnlIzmena.rowWeights = new double[] { 1.0D, Double.MIN_VALUE };
    pnlIzmena.setLayout(gbl_pnlIzmena);

    JButton btnSelekt = new JButton("Selekt");
    btnSelekt.addActionListener(new ActionListener()
    {
      public void actionPerformed(ActionEvent arg0)
      {
        Paint.this.klik = 0;
      }
    });
    JLabel lblAlat = new JLabel("Trenutno koristite:");
    GridBagConstraints gbc_lblAlat = new GridBagConstraints();
    gbc_lblAlat.insets = new Insets(0, 0, 0, 5);
    gbc_lblAlat.gridx = 0;
    gbc_lblAlat.gridy = 0;
    pnlIzmena.add(lblAlat, gbc_lblAlat);

    JButton btnIzmena = new JButton("Izmena");
    btnIzmena.addActionListener(this);

    JLabel lblIzabraniAlat = new JLabel(this.nazivAlata);
    GridBagConstraints gbc_lblIzabraniAlat = new GridBagConstraints();
    gbc_lblIzabraniAlat.gridwidth = 2;
    gbc_lblIzabraniAlat.insets = new Insets(0, 0, 0, 5);
    gbc_lblIzabraniAlat.gridx = 1;
    gbc_lblIzabraniAlat.gridy = 0;
    pnlIzmena.add(lblIzabraniAlat, gbc_lblIzabraniAlat);
    GridBagConstraints gbc_btnIzmena = new GridBagConstraints();
    gbc_btnIzmena.insets = new Insets(0, 0, 0, 5);
    gbc_btnIzmena.gridx = 3;
    gbc_btnIzmena.gridy = 0;
    pnlIzmena.add(btnIzmena, gbc_btnIzmena);
    GridBagConstraints gbc_btnSelekt = new GridBagConstraints();
    gbc_btnSelekt.anchor = 18;
    gbc_btnSelekt.gridx = 4;
    gbc_btnSelekt.gridy = 0;
    pnlIzmena.add(btnSelekt, gbc_btnSelekt);
  }

  public void paint(Graphics g)
  {
    super.paint(g);
    switch (this.klik)
    {
    case 0:
      selektuj(g);
      break;
    case 1:
      tacka();
      this.nazivAlata = "Tacka";
      break;
    case 2:
      linija();
      break;
    case 3:
      krug();
      break;
    case 4:
      kvadrat();

      break;
    case 5:
      pravougaonik();
    }
    crtaj(g);
  }

  public void selektuj(Graphics g)
  {
    int pom = -1;
    for (int i = 0; i < this.listaOblik.size(); i++) {
      if ((((Oblik)this.listaOblik.get(i)).sadrzi(this.x + 125, this.y + 62)) &&
        (pom < i)) {
        pom = i;
      }
    }
    if (pom != -1)
    {
      ((Oblik)this.listaOblik.get(pom)).selektovan(g);
      this.pozicija = pom;
    }
  }

  public void tacka()
  {
    Tacka t = new Tacka();
    t.pomeriNa(this.x + 125, this.y + 62);
    this.listaOblik.add(t);
    this.klik = 0;
  }

  private void linija()
  {
    Linija l = new Linija(new Tacka(this.x1 + 125, this.y1 + 62), new Tacka(this.x + 125, this.y + 62));
    this.listaOblik.add(l);
    this.klik = 0;
  }

  public void krug()
  {
    int r = 0;
    boolean pom;
    do
    {
      pom = false;
      String i = JOptionPane.showInputDialog(null, "Unesite poluprecnik kruga", "Unos", 3);
      if (i == null) {
        break;
      }
      try
      {
        r = Integer.parseInt(i);
      }
      catch (NumberFormatException ex)
      {
        pom = true;
        JOptionPane.showMessageDialog(null, "Greska, potrebno je uneti ceo broj", "Greska", 0);
      }
    } while (pom);
    this.listaOblik.add(new Krug(new Tacka(this.x + 125, this.y + 62), r));
    this.klik = 0;
  }

  private void kvadrat()
  {
    int stranica = 0;
    boolean pom;
    do
    {
      pom = false;
      String i = JOptionPane.showInputDialog(null, "Unesite duzinu stranice", "Unos", 3);
      if (i == null) {
        break;
      }
      try
      {
        stranica = Integer.parseInt(i);
      }
      catch (NumberFormatException ex)
      {
        pom = true;
        JOptionPane.showMessageDialog(null, "Greska, potrebno je uneti ceo broj", "Greska", 0);
      }
    } while (pom);
    this.listaOblik.add(new Kvadrat(new Tacka(this.x + 125, this.y + 62), stranica));
    this.klik = 0;
  }

  private void pravougaonik()
  {
    int sirina = 0;
    int visina = 0;

    JTextField txtSirina = new JTextField();

    Object[] message = {
      "Sirina:", txtSirina,
      "Visina:" };
    boolean unos;
    do
    {
      unos = true;
      String txtVisina = JOptionPane.showInputDialog(null, message, "Dimenzije pravougaonika", 2);
      if (txtVisina == null) {
        break;
      }
      try
      {
        sirina = Integer.parseInt(txtSirina.getText());
      }
      catch (NumberFormatException ex)
      {
        unos = false;
      }
      try
      {
        visina = Integer.parseInt(txtVisina);
      }
      catch (NumberFormatException ex)
      {
        unos = false;
      }
      if (!unos) {
        JOptionPane.showMessageDialog(null, "Greska, potrebno je uneti ceo broj", "Greska", 0);
      }
    } while (!unos);
    if (unos) {
      this.listaOblik.add(new Pravougaonik(new Tacka(this.x + 125, this.y + 62), sirina, visina));
    }
    this.klik = 0;
  }

  public void crtaj(Graphics g)
  {
    for (int i = 0; i < this.listaOblik.size(); i++) {
      ((Oblik)this.listaOblik.get(i)).crtajSe(g);
    }
  }

  public void actionPerformed(ActionEvent e)
  {
    Izmena iz = new Izmena(this.listaOblik.get(this.pozicija));
    iz.setDefaultCloseOperation(2);
    iz.setVisible(true);
  }
}