import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class GuiLissaApplet extends Applet implements ActionListener {

	LissaApplet lissa;
	Panel ctrlp, xequp, yequp, dp, dtp, btnp;
	TextField at, bt, f1t, f2t, dt, dtt;
	Button btn;

	public void init() {
		lissa = new LissaApplet();
		lissa.embeddedInit();
		lissa.setParams(1, 1, 1, 2, Math.PI/4, .02);
		ctrlp = new Panel();
		ctrlp.setLayout(new ListLayout(6, 6));
		xequp = new Panel();
		xequp.setLayout(new FlowLayout(FlowLayout.LEFT));
		xequp.add(new Label("x(t) ="));
		xequp.add(at = new TextField("1", 3));
		xequp.add(new Label("\u22C5 cos (")); //Malpunkt in Unicode
		xequp.add(f1t = new TextField("1", 3));
		xequp.add(new Label("\u22C5 t )"));
		ctrlp.add(xequp);
		yequp = new Panel();
		yequp.setLayout(new FlowLayout(FlowLayout.LEFT));
		yequp.add(new Label("y(t) ="));
		yequp.add(bt = new TextField("1", 3));
		yequp.add(new Label("\u22C5 cos ("));
		yequp.add(f2t = new TextField("2", 3));
		yequp.add(new Label("\u22C5 t +"));
		yequp.add(dt = new TextField(".25", 3));
		yequp.add(new Label("\u22C5 \u03C0 )")); //Kleines Pi in Unicode
		ctrlp.add(yequp);
		dtp = new Panel();
		dtp.setLayout(new FlowLayout(FlowLayout.LEFT));
		dtp.add(new Label("\u0394t:")); //Grosses Delta in Unicode
		dtp.add(dtt = new TextField(".02", 3));
		ctrlp.add(dtp);
		btnp = new Panel();
		btnp.setLayout(new FlowLayout(FlowLayout.RIGHT));
		btnp.add(btn = new Button("Graph"));
		ctrlp.add(btnp);
		setLayout(new GridLayout(1, 2));
		add(lissa);
		add(ctrlp);
		btn.addActionListener(this);
		at.addActionListener(this);
		bt.addActionListener(this);
		f1t.addActionListener(this);
		f2t.addActionListener(this);
		dt.addActionListener(this);
		dtt.addActionListener(this);
	}
	
	public void actionPerformed(ActionEvent e) {
		lissa.setParams(at.getText(), bt.getText(), f1t.getText(), f2t.getText(), dt.getText() + " pi", dtt.getText());
	}

}