import java.awt.*;
import chart.*;

// This class serves as an intermediary between Newton and the Chart
// package (which was downloaded from http://www.ve.com/javachart/)
// Its main purpose is to prove that Newton and Interpolator don't use
// anything from Chart to cheat (since Chart doesn't really have an
// API). Other tools were used to find the API for LineChart, since it
// was provided in a binary-only form.
public class Graph extends Frame {

    public Graph() {
        super("Graph window");  // Set the title
        setResizable(false);    // Resizing could do BAD things.
        setLayout(null);        // No layout
        addNotify();            // Make the peer
        newSize(340, 440);      // Setup the size
    }

    // Draw myself onto the graphic. Not very exciting, to be sure.
    public synchronized void paint(Graphics g) {
        super.paint(g);

        LineChart lc = new LineChart("Graph of p");
        lc.addDataSet("p(x)", x, y);
        lc.resize(width, height);
        lc.lineVisible(true);
        lc.drawGraph(g);
    }

    // Handle destruction
    public boolean handleEvent(Event event) {
    	if (event.id == Event.WINDOW_DESTROY) {
    	    hide();
    	    return true;
    	}

    	return super.handleEvent(event);
    }


    // Change my size
    public void newSize(int h, int w) {
        height = h;
        width  = w;
        resize(insets().left + insets().right + w,
               insets().top + insets().bottom + h);
    }

    public double x[];
    public double y[];
    private int height;
    private int width;
}