import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
/** JFrame containing the LOGO interpreter.
 * Contains the TurtleDisplayPanel, and a JTextField for entering commands. Implements ActionListener to interpret the commands.
 */
public class LogoFrame extends JFrame implements ActionListener{
	/** Turtle to display in the TurtleDisplayPanel */
	//private Turtle[] turtles;
	/** TurtleDisplayPanel to display in the JFrame */
	private TurtleDisplayPanel panel;
	/** JTextField in the JFrame */
	private JTextField f;
	/** Parser object */
	private Parser parse;
	/**
	 * Constructs a new LogoFrame.
	 * Adds the TurtleDisplayPanel and JTextField and sets the frame to visible.
	 */
	public LogoFrame(){
		this.setTitle("LOGO");
		parse = new Parser();
		panel = new TurtleDisplayPanel(parse.getTurtles());
		f = new JTextField();
		f.addActionListener(this);
		panel.setLayout(new BorderLayout());
		add(panel,BorderLayout.CENTER);
		add(f,BorderLayout.SOUTH);
	}
	/**
	 * ActionEvent handler that interprets commands.
	 * Uses Scanner to parse the commands. Invalid commands do nothing and throw no exceptions
	 */
	public void actionPerformed(ActionEvent event){
		parse.parseLine(f.getText());
		panel.setTurtles(parse.getTurtles());
		f.setText("");
		panel.repaint();
	}
}