package no7;
import javax.swing.*;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.event.*;
import java.util.Collections;
import java.util.Vector;

public class Main extends JFrame {
    private static final long serialVersionUID = 1L;

    Main() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        final Vector<Double> vect = new Vector<Double>();
        final JList list = new JList(vect);
        final JScrollPane scroll = new JScrollPane(list);
        final JTextField fDouble = new JTextField(9);
        JButton bAdd = new JButton("Добавить"), bSort = new JButton("По возрастанию"),
                bReverse = new JButton("По убыванию");
        JPanel lPanel = new JPanel(), rPanel = new JPanel();
        GridBagLayout gbl = new GridBagLayout();
        GridBagConstraints c = new GridBagConstraints();

        bAdd.setPreferredSize(bSort.getPreferredSize());
        bReverse.setPreferredSize(bSort.getPreferredSize());
        setLayout(new GridLayout(1, 2));
        rPanel.setLayout(new GridLayout(1, 1));
        lPanel.setLayout(gbl);
        add(lPanel);
        add(rPanel);
        rPanel.add(scroll);
        c.insets = new Insets(5, 5, 5, 5);
        c.gridwidth = GridBagConstraints.REMAINDER;

        gbl.setConstraints(fDouble, c);
        lPanel.add(fDouble);
        gbl.setConstraints(bAdd, c);
        lPanel.add(bAdd);
        gbl.setConstraints(bSort, c);
        lPanel.add(bSort);
        gbl.setConstraints(bReverse, c);
        lPanel.add(bReverse);

        bSort.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                Collections.sort(vect);
                list.updateUI();
            }
        });
        bReverse.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                Collections.sort(vect, Collections.reverseOrder());
                list.updateUI();
            }
        });
        bAdd.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent ae) {
                try {
                    vect.add(Double.parseDouble(fDouble.getText()));
                    list.updateUI();
                } catch (NumberFormatException nfe) {
                    JOptionPane.showMessageDialog(new JFrame(), "Wrong NumberFormat!");
                }
            }
        });

        setVisible(true);
        pack();
        setMinimumSize(getSize());
    }
    @SuppressWarnings("unused")
    public static void main(String[] args) {
        Main mn = new Main();
    }
}