import java.io.*;
import java.util.*;
import java.net.*;
import java.awt.*;

public class PictureKeeper
{
    static boolean[] doneLines;
    static Dimension bounds;
    static Scanline picture[];
    static int numberDone;

    public PictureKeeper(Dimension boundsin)
    {
	bounds = boundsin;
	picture = new Scanline[bounds.height];
	doneLines = new boolean[bounds.height];
	for (int i=0; i<bounds.height; i++)
	{
	    doneLines[i] = false;
	}
	numberDone = 0;
    }  

    public synchronized void storeLine(int y, Scanline sl)
    {
	picture[y] = (Scanline) sl.clone();
	doneLines[y] = true;
	System.out.println("> > > Wrote line " + y + ", number " + 
	    ++numberDone + " of " + bounds.height);
    }
    
    public synchronized void writeToFile(String outfilename)
    {
	try
	{
	    ObjectOutputStream fileout = new ObjectOutputStream(
		new FileOutputStream(outfilename));
	    for (int i=0; i<bounds.height; i++)
	    {
		fileout.writeObject(picture[i]);
	    }
	}
	catch (Exception e)
	{
	    System.out.println("writetoFile: " + e);
	}
    }
    
    public synchronized boolean doneLine(int i)
    {
	return doneLines[i];
    }
    
    public synchronized boolean weAreDone()
    {
	for(int i=0; i<bounds.height; i++)
	{
	    if (doneLines[i] == false)
		return false;
	}
	return true;
    }
}