java - 组件更改大小后文本消失

Question

我在上面创建了一个 jTable 和 TableCellRenderer、TableCellEditor。我需要将可编辑的(具有文本/html 上下文类型)JEditorPane 放在那里。当我在里面写一些文本并调整组件大小时，文本消失了。我做错了什么？此外，在此组件上方，我还有带有文本版本的按钮:例如:

JButton bold = new JButton():
bold.setAction(new StyledEditorKit.BoldAction());

它是我的自定义模型的一部分:

private JEditorPane editorTxtPane = new JEditorPane("text/html", "");
private JEditorPane rendererTxtPane = new JEditorPane("text/html", "");
private final JPanel editorPanel = new JPanel();
private final JPanel rendererPanel = new JPanel();
private final ArrayList<FocusListener> editorFocusListeners = new ArrayList<FocusListener>();

public SampleModel() {
    super();

    rendererTxtPane.setContentType("text/html");
    editorTxtPane.setContentType("text/html");

    rendererPanel.add(initCellControls(rendererPanel, rendererLabel));
    rendererPanel.add(rendererTxtPane);

    editorPanel.add(initCellControls(editorPanel, editorLabel));
    JScrollPane sp = new JScrollPane(editorTxtPane);
    sp.setBorder(null);
    editorPanel.add(sp);

    editorTxtPane.addFocusListener(new FocusAdapter() {

        @Override
        public void focusGained(FocusEvent e) {
            super.focusGained(e);
            e.setSource(editorTxtPane);
            for (int i = editorFocusListeners.size() - 1; i >= 0; i--) {
                editorFocusListeners.get(i).focusGained(e);
            }
        }

        @Override
        public void focusLost(FocusEvent e) {
            super.focusLost(e);
            e.setSource(editorTxtPane);
            for (int i = editorFocusListeners.size() - 1; i >= 0; i--) {
                editorFocusListeners.get(i).focusLost(e);
            }
        }
    });
}

这是我的编辑器和渲染器方法:

@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
    Comment c = data.get(row);
    rendererTxtPane.setText(c.getComment());
    return rendererPanel;
}

@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
    Comment c = data.get(row);
    c.setNeedSave(true);
    editorTxtPane.setText(c.getComment());
    return editorPanel;
}

Answer 1

这不是 Editors and Renderers工作。特别是，编辑器仅在编辑单元格时有效。您的 TableModel 应该存储每一行​​的 Document。编辑结束后，您的模型将使用修改后的 Document 进行更新，如 here 所述.您可以将自己的工作与 example 进行比较，这可以构成你的基础 sscce .