ButtonsToolBar.java

import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JPanel;
import javax.swing.JToolBar;

public class ButtonsToolBar extends JToolBar {
  private ModelObservable model;
  private final GenerationScheduler sched;
  private JButton play;
  private JButton pause;
  public ButtonsToolBar(  ModelObservable mod,  final GenerationScheduler sched){
    this.model=mod;
    this.sched=sched;
    this.setLayout(new FlowLayout(FlowLayout.LEFT));
    this.setFloatable(false);
    this.setRollover(true);
    
    addGenerationButton();
    
    play=makeNavigationButton("Play24","Play","Automatisch abspielen","abspielen",new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        sched.start();
        pause.setEnabled(true);
        play.setEnabled(false);
      }
    }
);
    add(play);
    pause=makeNavigationButton("Pause24","Pause","pausieren","pause",new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        sched.stop();
        pause.setEnabled(false);
        play.setEnabled(true);
      }
    }
);
    pause.setEnabled(false);
    add(pause);
    add(makeNavigationButton("StepForward24","SingleStep","Einzelschritt","Einzelschritt",new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        model.nextGeneration();
        sched.stop();
        pause.setEnabled(false);
        play.setEnabled(true);
        model.notifyObservers();
      }
    }
));
  }
  private void addGenerationButton() {
  	add(makeNavigationButton("Stop24","ClearField","Feld löschen","löschen",new ActionListener(){
      public void actionPerformed(      ActionEvent e){
        int x=model.getPlayground().length;
        int y=model.getPlayground()[0].length;
        for (int ix=0; ix < x; ix++) {
          for (int iy=0; iy < y; iy++) {
            model.setLifeform(ix,iy,0);
          }
        }
        sched.stop();
        pause.setEnabled(false);
        play.setEnabled(true);
        model.notifyObservers();
      }
    }
	));
  }
  public void update(){
  }
  /** 
 * @param imageNamename of the image in folder without ".gif"
 * @param actionCommandstring that identifies the button, does not matter
 * @param toolTipTexttool Tip
 * @param altTexttext, that will be displayed if the image does not work
 * @param actActionListener that will be called when the button is pressed
 * @return
 */
  protected JButton makeNavigationButton(  String imageName,  String actionCommand,  String toolTipText,  String altText,  ActionListener act){
    String imgLocation="/ressources/images/" + imageName + ".gif";
    URL imageURL=Main.class.getResource(imgLocation);
    JButton button=new JButton();
    button.setActionCommand(actionCommand);
    button.setToolTipText(toolTipText);
    button.addActionListener(act);
    if (imageURL != null) {
      button.setIcon(new ImageIcon(imageURL,altText));
    }
 else {
      button.setText(altText);
      System.err.println("Resource not found: " + imgLocation);
    }
    return button;
  }
}