DeckPanelExample.java 文件源码

public DeckPanelExample() {
  super("Deck Panel");

  DockPanel dock = new DockPanel();
  final DeckPanel deck = new DeckPanel();
  final ListBox list = new ListBox();
  list.addChangeHandler(new ChangeHandler() {
      public void onChange( ChangeEvent changeEvent )
      {
          int index = list.getSelectedIndex();
          deck.showWidget(index);
      }
  });

  for (String label : new String[] { "One", "Two", "Three", "Four"}) {
    list.addItem(label);
    deck.add(new Button(label));
  }
  deck.showWidget(0);

  dock.add(list, DockPanel.NORTH);
  dock.add(deck, DockPanel.CENTER);
  add(dock);
}