Swing/FileSystemTreeWithCheckBox のバックアップの現在との差分(No.3)

JCheckBox付きJTreeでディテクトリ構造を表示

サンプルコード

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* サンプルコード [#sourcecode]
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#code(link){{
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class CheckBoxNodeEditor extends TriStateCheckBox implements TreeCellEditor {
  private final FileSystemView fileSystemView;
  private final JPanel panel = new JPanel(new BorderLayout());
  private DefaultTreeCellRenderer renderer = new DefaultTreeCellRenderer();
  private File file;
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  public CheckBoxNodeEditor(FileSystemView fileSystemView) {
    super();
    this.fileSystemView = fileSystemView;
    this.addActionListener(new ActionListener() {
      @Override public void actionPerformed(ActionEvent e) {
        stopCellEditing();
      }
    });
    panel.setFocusable(false);
    panel.setRequestFocusEnabled(false);
    panel.setOpaque(false);
    panel.add(this, BorderLayout.WEST);
    this.setOpaque(false);
  }
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  @Override public Component getTreeCellEditorComponent(
      JTree tree, Object value, boolean isSelected, boolean expanded,
      boolean leaf, int row) {
    JLabel l = (JLabel)renderer.getTreeCellRendererComponent(
        tree, value, true, expanded, leaf, row, true);
    JLabel l = (JLabel) renderer.getTreeCellRendererComponent(
      tree, value, true, expanded, leaf, row, true);
    l.setFont(tree.getFont());
    setOpaque(false);
    if(value != null && value instanceof DefaultMutableTreeNode) {
    if (value instanceof DefaultMutableTreeNode) {
      this.setEnabled(tree.isEnabled());
      this.setFont(tree.getFont());
      Object userObject = ((DefaultMutableTreeNode)value).getUserObject();
      if(userObject!=null && userObject instanceof CheckBoxNode) {
        CheckBoxNode node = (CheckBoxNode)userObject;
        if(node.status==Status.INDETERMINATE) {
      Object userObject = ((DefaultMutableTreeNode) value).getUserObject();
      if (userObject instanceof CheckBoxNode) {
        CheckBoxNode node = (CheckBoxNode) userObject;
        if (node.status == Status.INDETERMINATE) {
          setIcon(new IndeterminateIcon());
        }else{
        } else {
          setIcon(null);
        }
        file = node.file;
        l.setIcon(fileSystemView.getSystemIcon(file));
        l.setText(fileSystemView.getSystemDisplayName(file));
        setSelected(node.status==Status.SELECTED);
        setSelected(node.status == Status.SELECTED);
      }
      //panel.add(this, BorderLayout.WEST);
      // panel.add(this, BorderLayout.WEST);
      panel.add(l);
      return panel;
    }
    return l;
  }
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  @Override public Object getCellEditorValue() {
    return new CheckBoxNode(file, isSelected()?Status.SELECTED:Status.DESELECTED);
    return new CheckBoxNode(file, isSelected() ? Status.SELECTED : Status.DESELECTED);
  }
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  @Override public boolean isCellEditable(EventObject e) {
    if(e != null && e instanceof MouseEvent && e.getSource() instanceof JTree) {
      MouseEvent me = (MouseEvent)e;
      JTree tree = (JTree)e.getSource();
    if (e instanceof MouseEvent && e.getSource() instanceof JTree) {
      MouseEvent me = (MouseEvent) e;
      JTree tree = (JTree) e.getSource();
      TreePath path = tree.getPathForLocation(me.getX(), me.getY());
      Rectangle r = tree.getPathBounds(path);
      if(r==null) return false;
      if (r == null) {
        return false;
      }
      Dimension d = getPreferredSize();
      r.setSize(new Dimension(d.width, r.height));
      if(r.contains(me.getX(), me.getY())) {
        if(file==null && System.getProperty("java.version").startsWith("1.7.0")) {
          System.out.println("XXX: Java 7, only on first run\n"+getBounds());
          setBounds(new Rectangle(0,0,d.width,r.height));
        }
      if (r.contains(me.getX(), me.getY())) {
        // if (file == null && System.getProperty("java.version").startsWith("1.7.0")) {
        //   System.out.println("XXX: Java 7, only on first run\n" + getBounds());
        //   setBounds(new Rectangle(0, 0, d.width, r.height));
        // }
        return true;
      }
    }
    return false;
  }
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  @Override public void updateUI() {
    super.updateUI();
    if(panel!=null) panel.updateUI();
    //1.6.0_24 bug??? @see 1.7.0 DefaultTreeCellRenderer#updateUI()
    if (panel != null) {
      panel.updateUI();
    }
    // 1.6.0_24 bug??? @see 1.7.0 DefaultTreeCellRenderer#updateUI()
    renderer = new DefaultTreeCellRenderer();
  }
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//......
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// ...
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• - JTableHeaderにJCheckBoxを追加してセルの値を切り替えるのように親ノードをチェックすると子ノードのチェックをすべて切り替える機能には今のところ対応していません。

• TreeCellEditor#isCellEditable(...)をオーバーライドしてJCheckBoxの領域内をクリックした場合のみ編集可能(チェックの有無を切り替えることができる)に設定
• ラベルやアイコンなどをクリックした場合は編集状態にせずノードの展開や折り畳みができるように設定

• FileSystemViewを使ってディテクトリ構造をJTreeに表示する

参考リンク

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