import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class KochSnowflake extends JApplet implements ActionListener {
    private final int APPLET_WIDTH = 400;
    private final int APPLET_HEIGHT = 440;
    private final int MIN = 1;
    private final int MAX = 9;

    private JButton increase, decrease;
    private JLabel titleLabel, orderLabel;
    private KochPanel drawing;
    private JPanel appletPanel, tools;
    
    public void init() {
	// create tools panel
	tools = new JPanel();
	tools.setLayout(new BoxLayout(tools,BoxLayout.X_AXIS));
	tools.setBackground(Color.yellow);
	tools.setOpaque(true);

	//create title panel
	titleLabel = new JLabel("Koch Snowflake");
	titleLabel.setForeground(Color.black);
	
	//create buttons
	increase = new JButton(new ImageIcon("up.png"));
	increase.setPressedIcon(new ImageIcon("uppressed.png"));
	increase.setMargin(new Insets(0,0,0,0));
	increase.addActionListener(this);
	
	decrease = new JButton(new ImageIcon("down.png"));
	decrease.setPressedIcon(new ImageIcon("downpressed.png"));
	decrease.setMargin(new Insets(0,0,0,0));
	decrease.addActionListener(this);
	
	//create order label
	orderLabel = new JLabel("Order: 1");
	orderLabel.setBackground(Color.black);
	
	// now add everything to the panel.
	tools.add(titleLabel);
	tools.add(Box.createHorizontalStrut(20));
	tools.add(decrease);
	tools.add(increase);
	tools.add(Box.createHorizontalStrut(20));
	tools.add(orderLabel);
	
	// create a drawing area
	drawing = new KochPanel(1);
	// now an outer container
	appletPanel = new JPanel();
	appletPanel.add(tools);
	appletPanel.add(drawing);

	getContentPane().add(appletPanel);
	setSize(APPLET_WIDTH, APPLET_HEIGHT);

    }
	
    public void actionPerformed(ActionEvent event) {
	int order = drawing.getOrder();
	
	if (event.getSource() == increase) {
	    order++;
	} else {
	    order--;
	}
	if (order >= MIN && order <= MAX) {
	    orderLabel.setText("Order: " + order);
	    drawing.setOrder(order);
	    repaint();
	}
    }
}