/** ButtonPanel.java -- the input to the program will be in
 *  the form of the user pressing buttons.
 */
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class ButtonPanel extends JPanel
{
  private PicturePanel pixPanel;
  private JButton dayButton;
  private JButton nightButton;

  public ButtonPanel(PicturePanel p)
  {
    pixPanel = p;

    // Create buttons, and initialize their special features.
    // Even though setMnemonic would work with 'd' as well as 'D', we'd
    // also like the 'D' in Daytime to be underlined.
    // To use a mnemonic, hit ALT-D or ALT-N as appropriate.
    dayButton = new JButton("Daytime");
    dayButton.setEnabled(false);
    dayButton.setMnemonic('D');
    dayButton.setToolTipText("See it during the day");
    dayButton.addActionListener(new DayListener());

    nightButton = new JButton("Nighttime");
    nightButton.setEnabled(true);
    nightButton.setMnemonic('N');
    nightButton.setToolTipText("See it at night!");
    nightButton.addActionListener(new NightListener());

    add(dayButton);
    add(nightButton);
    //setBorder(BorderFactory.createLineBorder(Color.yellow, 4));
    //setBorder(BorderFactory.createTitledBorder("Button Controls"));
  }

  // Need separate listeners for the buttons, because they behave
  // somewhat differently (although analogously).

  private class DayListener implements ActionListener
  {
    public void actionPerformed(ActionEvent e)
    {
      pixPanel.setDaytime(true);
      dayButton.setEnabled(false);
      nightButton.setEnabled(true);
      pixPanel.repaint();
    }
  }

  private class NightListener implements ActionListener
  {
    public void actionPerformed(ActionEvent e)
    {
      pixPanel.setDaytime(false);
      dayButton.setEnabled(true);
      nightButton.setEnabled(false);
      pixPanel.repaint();
    }
  }
}