GolView.java

import java.awt.BorderLayout;
import javax.swing.BoxLayout;
import javax.swing.JFrame;

public class GolView extends JFrame implements ModelObserver {
  private ModelObservable model;
  private PlaygroundPanel PPanel;
  private ButtonsToolBar BTBar;
  public GolView(  ModelObservable model){
    this.model=model;
    this.setDefaultCloseOperation(EXIT_ON_CLOSE);
    this.setLayout(new BorderLayout());
    final GenerationScheduler sched=new GenerationScheduler(model);
    PPanel=new PlaygroundPanel(model,sched);
    this.add(PPanel);
    BTBar=new ButtonsToolBar(model,sched);
    this.add(BTBar,BorderLayout.NORTH);
    this.pack();
    model.attach(this);
  }
  public void update(){
    PPanel.display(model.getPlayground());
    BTBar.update();
  }
}