Question

我正在使用DualListBox.java示例，但我遇到的问题是JList的宽度根据条目的长度进行缩放。理想情况下，我希望left JList占据宽度的40％，JButtons占据10％，right JList占据剩余的40％。

private void initScreen()
{
    setBorder(BorderFactory.createEtchedBorder());
    setLayout(new GridBagLayout());
    title = new JTextField("");
    title.setEditable(false);
    add(title, new GridBagConstraints(0, 0, 3, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.BOTH,
            EMPTY_INSETS, 0, 0));

    sourceLabel = new JLabel(DEFAULT_SOURCE_CHOICE_LABEL);
    sourceListModel = new SortedListModel();

    sourceList = new JList(sourceListModel);
    sourceList.addListSelectionListener(new AddSelectionListener());
    add(sourceLabel, new GridBagConstraints(0, 1, 1, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
            EMPTY_INSETS, 0, 0));
    add(new JScrollPane(sourceList), new GridBagConstraints(0, 2, 1, 5, .5, 1, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, EMPTY_INSETS, 0, 0));

    addButton = new JButton(ADD_BUTTON_LABEL);
    add(addButton, new GridBagConstraints(1, 3, 1, 2, 0, .25, GridBagConstraints.CENTER, GridBagConstraints.NONE,
            EMPTY_INSETS, 0, 0));
    addButton.addActionListener(new AddListener());
    removeButton = new JButton(REMOVE_BUTTON_LABEL);
    add(removeButton, new GridBagConstraints(1, 5, 1, 2, 0, .25, GridBagConstraints.CENTER, GridBagConstraints.NONE,
            new Insets(0, 5, 0, 5), 0, 0));
    removeButton.addActionListener(new RemoveListener());

    destLabel = new JLabel(DEFAULT_DEST_CHOICE_LABEL);
    destListModel = new SortedListModel();

    destList = new JList(destListModel);
    destList.addListSelectionListener(new RemoveSelectionListener());
    add(destLabel, new GridBagConstraints(2, 1, 1, 1, 0, 0, GridBagConstraints.CENTER, GridBagConstraints.NONE,
            EMPTY_INSETS, 0, 0));
    add(new JScrollPane(destList), new GridBagConstraints(2, 2, 1, 5, .5, 1.0, GridBagConstraints.CENTER,
            GridBagConstraints.BOTH, EMPTY_INSETS, 0, 0));
}

DualListBBox()已添加到JPanel，该JPanel已添加到compact grid

SpringUtilities.makeCompactGrid(content, 1, 1, 6, 6, 6, 6);

如果面板有水平滚动，我不知道，我只是希望它们都是相同的宽度。任何更熟悉网格和布局的人都可以给我一些指示，或者你在上面的代码中看到了什么错误的值？

谢谢！

布局正在缩放我的JList

0 个答案: