想象一下,我正在用Java构建IRC客户端,我希望在聊天视图中使用富文本格式显示IRC颜色和有色刻痕.我想用JTable构建它.我可以做到,但是文本是不可选的.使表格可编辑没有任何意义.
我还调查了:
> TextArea-无格式文本格式
> JEditPane-无法追加,只能替换,这是性能不好的明智选择
> JList-无法选择文本
所以我得到了一个工作表,我只需要选择文本而不使其可编辑即可.我也只希望文本内容,并且在复制文本选择时不会将任何HTML复制到剪贴板.
我尝试了setRowSelectionAllowed(),setColumnSelectionEnabled()和setCellSelectionEnabled()和setSelectionMode的各种迭代,该表模型为isCellEditable()返回false.没有什么可以选择文本的.
编辑:根据答案1我错了关于文本编辑器窗格,所以我正在尝试这些解决方案.
解决方法:
我不知道您为什么不想使用JTextPane或JEditorPane.您在其文档中插入文本.此处的示例-> How to use Editor Panes and Text Panes.
但是出于您的目的,您可以例如执行以下操作.我在单击时将changeSelection覆盖为selectAll文本,这些单元格是可编辑的,但其cellEditor是不可编辑的.
public class JTableTest {
private final DefaultCellEditor cellEditor;
private final JTextField textfield;
private JPanel panel;
private MyTableModel tableModel = new MyTableModel();
private JTable table = new JTable() {
@Override
public TableCellEditor getCellEditor(int row, int column) {
return JTableTest.this.cellEditor;
}
@Override
public void changeSelection(
final int row, final int column, final boolean toggle, final boolean extend) {
super.changeSelection(row, column, toggle, extend);
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
if ((getCellEditor(row, column) != null && !editCellAt(row, column))) {
JTextField textfield=(JTextField)JTableTest.this.cellEditor.getComponent();
textfield.selectAll();
}
}
});
}
};
public JTableTest() {
JScrollPane scroll = new JScrollPane(table);
table.setModel(tableModel);
panel = new JPanel(new BorderLayout());
panel.add(scroll, BorderLayout.CENTER);
textfield = new JTextField();
textfield.setEditable(Boolean.FALSE);
textfield.setBorder(null);
cellEditor = new DefaultCellEditor(textfield);
tableModel.insertValue(new ItemRow("nonEditable", "Editable"));
}
private class ItemRow {
private String column1;
private String column2;
public ItemRow(String column1, String column2) {
this.column1 = column1;
this.column2 = column2;
}
public String getColumn1() {
return column1;
}
public void setColumn1(String column1) {
this.column1 = column1;
}
public String getColumn2() {
return column2;
}
public void setColumn2(String column2) {
this.column2 = column2;
}
}
private class MyTableModel extends AbstractTableModel {
public static final int COLUMN1_INDEX = 0;
public static final int COLUMN2_INDEX = 1;
private final List<ItemRow> data = new ArrayList<>();
private final String[] columnsNames = {
"Column1",
"Column2",};
private final Class<?>[] columnsTypes = {
String.class,
String.class
};
public MyTableModel() {
super();
}
@Override
public Object getValueAt(int inRow, int inCol) {
ItemRow row = data.get(inRow);
Object outReturn = null;
switch (inCol) {
case COLUMN1_INDEX:
outReturn = row.getColumn1();
break;
case COLUMN2_INDEX:
outReturn = row.getColumn2();
break;
default:
throw new RuntimeException("invalid column");
}
return outReturn;
}
@Override
public void setValueAt(Object inValue, int inRow, int inCol) {
System.out.println("Gets called ");
if (inRow < 0 || inCol < 0 || inRow >= data.size()) {
return;
}
ItemRow row = data.get(inRow);
switch (inCol) {
case COLUMN1_INDEX:
row.setColumn1(inValue.toString());
break;
case COLUMN2_INDEX:
row.setColumn2(inValue.toString());
break;
}
fireTableCellUpdated(inRow, inCol);
}
@Override
public int getRowCount() {
return data.size();
}
@Override
public int getColumnCount() {
return columnsTypes.length;
}
@Override
public String getColumnName(int inCol) {
return this.columnsNames[inCol];
}
@Override
public Class<?> getColumnClass(int columnIndex) {
return this.columnsTypes[columnIndex];
}
/**
*
* @param row
*/
public void insertValue(ItemRow row) {
data.add(row);
fireTableRowsInserted(data.size() - 1, data.size() - 1);
}
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return true;
}
}
private static void createAndShowGUI(final Container container, final String title) {
//Create and set up the window.
JFrame frame = new JFrame(title);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationByPlatform(Boolean.TRUE);
frame.add(container);
//Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String args[]) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
createAndShowGUI(new JTableTest().panel, "Test");
}
});
}
}
标签:swing,jtable,java 来源: https://codeday.me/bug/20191029/1962466.html
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