package tp8.fenetres;

import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.event.InternalFrameAdapter;
import javax.swing.event.InternalFrameEvent;
import tp8.Application;

/**
 *
 * @author brunomermet
 */
public class FenetreConversion extends AbstractFenetreInterne {
	private JTextField champCelsius;
	private JTextField champFarenheit;
	private JButton boutonConvertir;
	private Action actionConvertir;
	private boolean celsiusAFocus;

	public FenetreConversion(Action action) {
		super(action, "Conversion celsius/Farenheit");
		this.setSize(new Dimension(100, 50));
		this.setLayout(new GridLayout(3, 1));
		JPanel ligneCelsius = new JPanel();
		ligneCelsius.setLayout(new FlowLayout(FlowLayout.TRAILING));
		JLabel labCelsius = new JLabel("Celsius :");
		champCelsius = new JTextField(15);
		labCelsius.setLabelFor(champCelsius);
		ligneCelsius.add(labCelsius);
		ligneCelsius.add(champCelsius);
		this.add(ligneCelsius);
		celsiusAFocus = true;
		champCelsius.addFocusListener(new EcouteurFocus(true));
		JPanel ligneFarenheit = new JPanel();
		ligneFarenheit.setLayout(new FlowLayout(FlowLayout.TRAILING));
		JLabel labFarenheit = new JLabel("Farenheit :");
		champFarenheit = new JTextField(15);
		labFarenheit.setLabelFor(champFarenheit);
		ligneFarenheit.add(labFarenheit);
		ligneFarenheit.add(champFarenheit);
		this.add(ligneFarenheit);
		champFarenheit.addFocusListener(new EcouteurFocus(false));
		JPanel ligneValider = new JPanel();
		ligneValider.setLayout(new FlowLayout(FlowLayout.CENTER));
		actionConvertir = new ActionConvertir();
		boutonConvertir = new JButton(actionConvertir);
		ligneValider.add(boutonConvertir);
		this.add(ligneValider);

		pack();
		getRootPane().setDefaultButton(boutonConvertir);
	}

	private class EcouteurFocus implements FocusListener {
		private boolean aStocker;

		public EcouteurFocus(boolean b) {
			aStocker = b;
		}

		@Override
		public void focusGained(FocusEvent fe) {
			celsiusAFocus = aStocker;
		}

		@Override
		public void focusLost(FocusEvent fe) {
			return;
		}
	}

	private class ActionConvertir extends AbstractAction {

		public ActionConvertir() {
			super("Convertir");
		}

		@Override
		public void actionPerformed(ActionEvent ae) {
			double tempCelsius = 0;
			double tempFarenheit = 0;
			if (celsiusAFocus) {
				try {
					tempCelsius = Double.parseDouble(champCelsius.getText());
					tempFarenheit = 9. / 5 * tempCelsius + 32;
					champFarenheit.setText("" + tempFarenheit);
				} catch (NumberFormatException nfe) {
					champFarenheit.setText("Format incorrect");
				}
			} else {
				try {
					tempFarenheit = Double.parseDouble(champFarenheit.getText());
					tempCelsius = (tempFarenheit - 32) * 5. / 9;
					champCelsius.setText("" + tempCelsius);
				} catch (NumberFormatException nfe) {
					champCelsius.setText("Format incorrect");
				}

			}
		}
	}

}