import java.awt.*;
import java.awt.event.*;
import java.util.Vector;
import java.io.*;

public class LCDTest extends Frame implements WindowListener
{

    public static void main(String[] args)
    {
        LCDTest test = new LCDTest();
    }

    // --------------------------------------------------------------------------------
    //   Data Members
    // --------------------------------------------------------------------------------

    private LCDTestGraphic testGraphic;
    private int windowWidth = 400, windowHeight = 300;
    private boolean loop;
    private Graphics graphics;
    private Color[] colors;
    private int numberOfSteps;
    private int rowsPerScreen;
    private String filename = "LCDTest.cfg";

    // --------------------------------------------------------------------------------
    //   Constructor
    // --------------------------------------------------------------------------------

    public LCDTest()
    {
        // call parent constructor
        super("LCD Test");

        // set frame properties
        setSize(windowWidth, windowHeight);
        setResizable(true);
        Toolkit toolkit = Toolkit.getDefaultToolkit();
        int xLocation = (toolkit.getScreenSize().width - windowWidth) / 2;
        int yLocation = (toolkit.getScreenSize().height - windowHeight) / 2;
        setLocation(xLocation,yLocation);
        setBackground(Color.black);
        show();
        graphics = (Graphics) getGraphics();
        validate();

        readSettings();
        reset();

        // regester this frame as its own window listener
        addWindowListener(this);

        // start infinate loop
        run();
   }

   // --------------------------------------------------------------------------------
   //   Methods
   // --------------------------------------------------------------------------------

    public void readSettings()
    {
        try
        {
            BufferedReader br = new BufferedReader(new FileReader(new File(filename)));

            numberOfSteps = Integer.decode(br.readLine().substring(14)).intValue();

            rowsPerScreen = Integer.decode(br.readLine().substring(14)).intValue();

            String colorString = br.readLine().substring(7);
            Vector colorVector = new Vector();
            int startIndex;
            int endIndex;
            while ((startIndex = colorString.indexOf('"')) != -1 && (endIndex = colorString.indexOf('"', startIndex + 1)) != -1)
            {
                colorVector.add(new Color(Integer.decode(colorString.substring(startIndex + 1, endIndex)).intValue()));
                colorString = colorString.substring(endIndex + 1);
            }

            colors = new Color[colorVector.size()];
            for (int i = 0; i < colorVector.size(); i++)
            {
                colors[i] = (Color) colorVector.get(i);
            }
        }

        catch (Exception e)
        {
            numberOfSteps = 100;
            rowsPerScreen = 5;
            colors = new Color[] {new Color(0,0,0), new Color(64,64,64), new Color(128,128,128), new Color(191,191,191), new Color(255,255,255)};
        }

    }

    public void run()
    {
        loop = true;
        while (loop)
        {
            if (getWidth() != windowWidth || getHeight() != windowHeight)
            {
                windowWidth = getWidth();
                windowHeight = getHeight();
                reset();
            }
            graphics.drawImage(testGraphic.getImage(), 0, 0, this);
        }
    }

    private void reset()
    {
        testGraphic = new LCDTestGraphic(windowWidth, windowHeight, createImage(windowWidth, windowHeight), colors, numberOfSteps, rowsPerScreen);
    }

    // implementation of window listener to activate close button
    public void windowClosing(WindowEvent event)
    {
        loop = false;
        dispose();
        System.exit(0);
    }
    public void windowActivated(WindowEvent event) {}
    public void windowClosed(WindowEvent event) {}
    public void windowDeactivated(WindowEvent event) {}
    public void windowDeiconified(WindowEvent event) {}
    public void windowIconified(WindowEvent event) {}
    public void windowOpened(WindowEvent event) {}

}