import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.util.Random;
import java.util.TreeSet;

import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableModel;


class MyWindow extends JFrame implements ActionListener{

	private static final long serialVersionUID = 1L;

	private final static String OPIS_PROGRAMU = "OPIS";


	 JMenuBar menu = new JMenuBar();
	 JMenu program = new JMenu("Program");
	 JMenuItem autor = new JMenuItem("Autor");
	 JMenuItem opis = new JMenuItem("Opis");
	 JMenuItem zakoncz = new JMenuItem("Zakoncz");

     MyPanel panel = new MyPanel();


	public static void main(String[] args) {
		new MyWindow();
	}


	MyWindow() {
		setTitle("Imie Naziwsko");
		setSize(500,500);
		setDefaultCloseOperation(DISPOSE_ON_CLOSE);

		autor.addActionListener(this);
		opis.addActionListener(this);
		zakoncz.addActionListener(this);

		menu.add(program);

		program.add(opis);
		program.add(autor);
		program.add(zakoncz);

		setJMenuBar(menu);
		setContentPane(panel);
		setVisible(true);
	}


	@Override
	public void actionPerformed(ActionEvent e) {
		Object source = e.getSource();

		if(source == autor) {
			JOptionPane.showMessageDialog(this,"Blablabla");
		}
		if(source == opis) {
			JOptionPane.showMessageDialog(this, OPIS_PROGRAMU);
		}
		if(source == zakoncz) {
			System.exit(0);
		}

	}
}


 class MyPanel extends JPanel implements ActionListener ,MouseListener, MouseMotionListener, KeyListener {

	 private static final long serialVersionUID = 1L;

	 int mouseX = 0;
	 int mouseY = 0;


	 Circle circleUnderCursor = null;

	 TreeSet<Circle> circles = new TreeSet<Circle>();

	 ViewCollection view;

	 JButton addRandom = new JButton("Dodaj losowe kolo");
	 JButton delete = new JButton("Usun kola");


	 public MyPanel() {
		 addRandom.addActionListener(this);
		 delete.addActionListener(this);

		 addMouseListener(this);
		 addMouseMotionListener(this);
		 addKeyListener(this);
		 setFocusable(true);
		 requestFocus();

		 view = new ViewCollection(circles, 150, 200);

	     add(addRandom);
		 add(delete);
		 add(view);
	 }

	private void moveCircle(int dx, int dy, Circle circle) {
		circle.setX(circle.getX()+dx);
		circle.setY(circle.getY()+dy);
	}

	private void moveAllCircle(int dx, int dy) {
		for (Circle circle : circles) {
			moveCircle(dx, dy, circle);
		}
	}


	private void addCircle() {

		String name = JOptionPane.showInputDialog(this,"Podaj nazw� ko�a:");
		Random rand = new Random();
		int x = rand.nextInt(400);
		int y = rand.nextInt(400);
		circles.add(new Circle(name,x,y));
		repaint();
		view.refreshView();

	}

	private void deleteAll() {
		circles.clear();
		repaint();
		view.refreshView();
	}

	@Override
	public void paintComponent(Graphics g) {
		super.paintComponent(g);
			for(Circle circle : circles)
				circle.draw(g);
		}

	@Override
	public void actionPerformed(ActionEvent e) {
		Object source = e.getSource();

		if(source == addRandom) {
			addCircle();

		}
		if(source == delete) {
			deleteAll();
		}

		requestFocus();
	}

	@Override
	public void mouseClicked(MouseEvent e) {
		String name = JOptionPane.showInputDialog(this,"Podaj nazw� ko�a:");
		circles.add(new Circle(name,e.getX(),e.getY()));
		repaint();
		view.refreshView();
	}

	@Override
	public void mousePressed(MouseEvent e) {

	}

	@Override
	public void mouseReleased(MouseEvent e) {

	}

	@Override
	public void mouseEntered(MouseEvent e) {

	}

	@Override
	public void mouseExited(MouseEvent e) {

	}



	@Override
	public void mouseDragged(MouseEvent e) {

		for(Circle c : circles) {
			c.move(e.getX(), e.getY());
		}

		moveAllCircle(e.getX() - mouseX, e.getY() - mouseY);
		mouseX = e.getX();
		mouseY = e.getY();
		repaint();
	}



	@Override
	public void mouseMoved(MouseEvent e) {
		mouseX = e.getX();
		mouseY = e.getY();
		repaint();
	}

	@Override
	public void keyTyped(KeyEvent e) {
		char keyCode = e.getKeyChar();
		if(keyCode == 'c' || keyCode == 'C') {
			addCircle();
		}
	}

	@Override
	public void keyPressed(KeyEvent e) {
			int dist;
	       if (e.isShiftDown()) dist = 10;
	                         else dist = 1;
			switch (e.getKeyCode()) {
			case KeyEvent.VK_LEFT:
				moveAllCircle(-dist, 0);
				break;
			case KeyEvent.VK_RIGHT:
				moveAllCircle(dist, 0);
				break;
			case KeyEvent.VK_UP:
				moveAllCircle(0, -dist);
				break;
			case KeyEvent.VK_DOWN:
				moveAllCircle(0, dist);
				break;
			case KeyEvent.VK_DELETE:
				deleteAll();
				break;
			}
			repaint();
	}

	@Override
	public void keyReleased(KeyEvent e) {

	}


 }

 class Circle implements Comparable<Circle>{

	 String name;
	 int x;
	 int y;
	 int r = 20;

	public void move(int dx,int dy) {
	this.x = dx;
	this.y = dy;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getX() {
		return x;
	}

	public void setX(int x) {
		this.x = x;
	}

	public int getY() {
		return y;
	}

	public void setY(int y) {
		this.y = y;
	}

	public Circle(String name, int x, int y) {
		super();
		this.name = name;
		this.x = x;
		this.y = y;
	}


	 public void draw(Graphics g) {
		 g.setColor(Color.GREEN);
		 g.fillOval(x-r, y-r, 2*r, 2*r);
		 g.setColor(Color.BLACK);
		 g.drawOval(x-r, y-r, 2*r, 2*r);
		 g.drawString(name, x-r/4, y);
	 }



	@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((name == null) ? 0 : name.hashCode());
		return result;
	}


	@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		Circle other = (Circle) obj;
		if (name == null) {
			if (other.name != null)
				return false;
		} else if (!name.equals(other.name))
			return false;
		return true;
	}

	@Override
	public int compareTo(Circle c) {
		return this.name.compareTo(c.name);
	}

 }

 class ViewCollection extends JScrollPane {

	 	private static final long serialVersionUID = 1L;

		private TreeSet<Circle> circles;
		private JTable table;
		private DefaultTableModel tableModel;

		public ViewCollection(TreeSet<Circle> circles, int width, int height) {
			this.circles = circles;
			setPreferredSize(new Dimension(width, height));
			setBorder(BorderFactory.createTitledBorder("Kolekcja"));

			String[] tableHeader = {"Nazwa", "X", "Y" };
			tableModel = new DefaultTableModel(tableHeader, 0);
			table = new JTable(tableModel) {

				private static final long serialVersionUID = 1L;

				@Override
				public boolean isCellEditable(int rowIndex, int colIndex) {
					return false;
				}
			};
			table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
			table.setRowSelectionAllowed(true);
			setViewportView(table);
		}

		void refreshView() {
			tableModel.setRowCount(0);
			for (Circle circle : circles) {
				if (circle != null) {
					String[] row = { circle.getName(),"" + circle.getX(),
							"" + circle.getY() };
					tableModel.addRow(row);
					}
				}
			}


	}