@Override
  protected void createContent(Composite parent) {
    final Composite content = new Composite(parent, SWT.NONE);
    content.setLayout(new GridLayout(2, false));
    content.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    final Group animGroup = new Group(content, SWT.NONE);
    animGroup.setLayout(new GridLayout(1, false));
    animGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    animGroup.setText(Messages.AnimationEditor_Animation);

    final TabFolder animationTabs = new TabFolder(animGroup, SWT.TOP);
    final AnimationFrameSelector animationFrameSelector =
        createAnimationFrameSelector(animationTabs);
    final AnimationRenderer animationRenderer = createAnimationRenderer(animationTabs);

    final AnimationProperties animationProperties =
        new AnimationProperties(animationList, animationRenderer);
    animationList.addListener(animationProperties);
    final AnimationPlayer animationPlayer = new AnimationPlayer(animationList, animationRenderer);
    animationPlayer.createAnimationPlayer(animationRenderer.getParent().getParent());

    animationFrameSelector.setAnimationList(animationList);
    animationFrameSelector.setAnimationProperties(animationProperties);
    animationProperties.setAnimationFrameSelector(animationFrameSelector);
    animationRenderer.setAnimationPlayer(animationPlayer);

    final Composite properties = new Composite(content, SWT.NONE);
    properties.setLayout(new GridLayout(1, false));
    properties.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

    animationList.create(properties);
    animationProperties.create(properties);
    animationList.loadAnimations();
  }
 @Override
 protected void onExit() {
   final XmlNode root = configurer.getRoot();
   root.removeChildren(ConfigAnimations.ANIMATION);
   for (final TreeItem item : animationList.getTree().getItems()) {
     final Animation animation = (Animation) item.getData();
     final XmlNode nodeAnim = ConfigAnimations.createNode(animation);
     root.add(nodeAnim);
   }
   configurer.save();
 }