package ejemplolayouts;

import java.awt.event.ActionEvent;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;

public class EjemploCardLayout implements ActionListener{

    private JFrame f;
    private JButton b1, b2, b3, b4, b5;
    public CardLayout cardLayout;
    public JPanel panelSuperior, panelInferior, panelInf1, panelInf2;
    public JComboBox combo;
    public String[] vectorCadena = {"Button 1,2,3", "Button 4,5"};

    public EjemploCardLayout() {
        f = new JFrame("Card Layout");
        b1 = new JButton("Button 1");
        b2 = new JButton("Button 2");
        b3 = new JButton("Button 3");
        b4 = new JButton("Button 4");
        b5 = new JButton("Button 5");
    }

    public void construyePanelSuperior() {
        panelSuperior = new JPanel();
        combo = new JComboBox(vectorCadena);
        panelSuperior.setLayout(new FlowLayout());
        panelSuperior.add(combo);
        panelSuperior.getPreferredSize();
    }

    public void construyePanelInferior() {
        panelInferior = new JPanel();
        cardLayout = new CardLayout();
        panelInferior.setLayout(cardLayout);
        /*Al agregar necesitamos 2 argumentos, el objeto a agregar y un nombre referencial */
        panelInferior.add(panelInf1, "Button 1,2,3");
        panelInferior.add(panelInf2, "Button 4,5");
    }

    public void construyePanelInf1() {
        panelInf1 = new JPanel(new FlowLayout());
        panelInf1.add(b1);
        panelInf1.add(b2);
        panelInf1.add(b3);
    }

    public void construyePanelInf2() {
        panelInf2 = new JPanel(new FlowLayout());
        panelInf2.add(b4);
        panelInf2.add(b5);
    }

    public void launchFrame() {
        construyePanelSuperior();
        construyePanelInf1();
        construyePanelInf2();
        construyePanelInferior();

        f.setLayout(new BoxLayout(f.getContentPane(), BoxLayout.Y_AXIS));
        f.add(panelSuperior);
        f.add(panelInferior);
        f.getPreferredSize();
        f.pack();
        f.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        f.setVisible(true);

        //creamos el objeto controlador de eventos
        combo.addActionListener(this);
    }

    public static void main(String args[]) {
        EjemploCardLayout guiWindow2 = new EjemploCardLayout();
        guiWindow2.launchFrame();
    }

    public void actionPerformed(ActionEvent evento) {
        if (evento.getSource() == combo) {
            if (combo.getSelectedIndex() == 0) {
                cardLayout.show(panelInferior, "Button 1,2,3");
            }
            if (combo.getSelectedIndex() == 1) {
                cardLayout.show(panelInferior, "Button 4,5");
            }
        }
    }
}