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删除资源管理器视图中不在TopComponent中的节点

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Andreas Sewe · 技术社区 · 8 年前

我正在使用资源管理器视图( OutlineView DialogDescriptor

@ActionID(category = "Example", id = "org.example.Test")
@ActionRegistration(displayName = "Test")
@ActionReference(path = "Menu/File", position = 0)
public class SomeAction implements ActionListener {

  @Override
  public void actionPerformed(ActionEvent e) {
    DialogDescriptor dd = new DialogDescriptor(new MyPanel(), "Titel", true, null);
    DialogDisplayer.getDefault().notify(dd);
  }
}

class MyPanel extends JPanel implements ExplorerManager.Provider {
  private final ExplorerManager em;

  public MyPanel() {
    em = new ExplorerManager();
    em.setRootContext(new MyNode());
    add(new OutlineView());
  }

  @Override
  public ExplorerManager getExplorerManager() {
    return em;
  }
}

class MyNode extends AbstractNode {
  public MyNode() { super(Children.LEAF); }

  @Override
  public Action[] getActions(boolean context) {
    return new Action[] { SystemAction.get(DeleteAction.class) };
  }

  @Override
  public boolean canDestroy() {
    return true;
  }

  @Override
  public void destroy() {
    // Never called
  }
}

调用该操作时,将显示对话框,大纲视图将显示根节点。但是,选择 TopComponent 后面模态对话框。如何制作系统操作是否考虑对话框中的选择?我想我需要这样的东西

ActionMap map = getActionMap();
map.put("delete", ExplorerUtils.actionDelete(em, true));
associateLookup(ExplorerUptils.createLookup(em, map));

取自但不知道出了什么问题。因此,任何指针都是非常值得赞赏的。

1 回复 | 直到 8 年前

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2

Adam Kanz 8 年前

在MyPanel构造函数中,必须将delete操作添加到outline视图的操作映射中:

OutlineView outlineView = new OutlineView();
DeleteAction delAction = SystemAction.get(DeleteAction.class);

outlineView.getOutline().getActionMap().put(delAction.getActionMapKey(), ExplorerUtils.actionDelete(em,true));

如果还想启用删除键,则必须将相同的操作映射键放入outline view的输入映射:

KeyStroke delKey = KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0);
outlineView.getOutline().getInputMap().put(delKey, delAction.getActionMapKey());