/*
 * Created on May 13, 2004
 *
 */

package jmsltutorial;

import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Vector;

/**
 * @author Nick Didkovsky, (c) 2004 Nick Didkovsky, all rights reserved
 *
 */
public class ArrayEditorPanel extends Panel {

	private Vector textFieldVector = new Vector();
	private double[] array;

	public ArrayEditorPanel() {
	}

	/**
	 * @return array. after its contents are set from TextFields
	 */
	public double[] getArray() {
		setArrayFromTextFields();
		return array;
	}

	/** Enumerate through TextFields and set values in array from their contents */
	public void setArrayFromTextFields() {
		for (int i = 0; i < array.length; i++) {
			array[i] = new Double(((TextField) textFieldVector.elementAt(i)).getText()).doubleValue();
		}
	}

	/**
	 * @param ds, set array of double.  Causes Panel to removeAll() and build new TextFields for the array elements 
	 */
	public void setArray(double[] ds) {
		array = ds;
		textFieldVector.removeAllElements();
		setLayout(new GridLayout(0, 2));
		removeAll();
		for (int i = 0; i < array.length; i++) {
			TextField tf = new TextField(array[i] + "");
			textFieldVector.add(tf);
			add(new Label("arr[" + i + "]"));
			add(tf);
		}
	}

	public static void main(String args[]) {
		double[] arr = { 440, 455, 550, 604, 700 };
		final ArrayEditorPanel arrayEditor = new ArrayEditorPanel();
		arrayEditor.setArray(arr);
		Frame myFrame = new Frame();
		myFrame.addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				com.softsynth.jmsl.JMSL.printDoubleArray(arrayEditor.getArray());
				System.exit(0);
			}
		});

		myFrame.add(arrayEditor);
		myFrame.pack();
		myFrame.setVisible(true);
	}

}