为什么在编辑JTable单元格时按下escape时未调用cancelCellEditing（）？
我有一个可编辑的JTable，并设置了一个DefaultCellEditor，如下所示：
colModel.getColumn( 1 ).setCellEditor( new DefaultCellEditor( txtEditBox ) {
// ...
@Override
public void cancelCellEditing() {
super.cancelCellEditing();
// handling the event
}
// ...
}
没有找到相关结果
已邀请:
3 个回复
绵扇寸访
闪票仇门韧
public class TableEditorListenerHelper { // dealing with events private final EventListenerList listeners = new EventListenerList(); private ChangeEvent changeEvent; // cell editor that we're helping private CellEditor editor; // transient state private boolean editing = false; private JTable table; public TableEditorListenerHelper(CellEditor editor, JTextField field) { this.editor = editor; field.addActionListener(new ActionListener() { @Override public void actionPerformed(ActionEvent e) { fireEditingStopped(); } }); field.addFocusListener(new FocusListener() { @Override public void focusGained(FocusEvent e) { editing = true; } @Override public void focusLost(FocusEvent e) { JTable table = TableEditorListenerHelper.this.table; if (editing && isEditing(table)) { fireEditingCanceled(); } } private boolean isEditing(JTable table) { // a hack necessary to deal with focuslist vs table repaint return table != null && table.isEditing(); } }); } public void setTable(JTable table) { this.table = table; } public void addCellEditorListener(CellEditorListener l) { listeners.add(CellEditorListener.class, l); } public void removeCellEditorListener(CellEditorListener l) { listeners.remove(CellEditorListener.class, l); } public CellEditorListener[] getCellEditorListeners() { return listeners.getListeners(CellEditorListener.class); } protected void fireEditingCanceled() { for (CellEditorListener l : getCellEditorListeners()) { l.editingCanceled(getOrCreateEvent()); } resetEditingState(); } protected void fireEditingStopped() { for (CellEditorListener l : getCellEditorListeners()) { l.editingStopped(getOrCreateEvent()); } resetEditingState(); } private void resetEditingState() { table = null; editing = false; } private ChangeEvent getOrCreateEvent() { return changeEvent = changeEvent == null ? new ChangeEvent(editor) : changeEvent; }席陋临拈
jTable.addPropertyChangeListener("tableCellEditor", e -> { Object o = e.getOldValue(); if (o instanceof DefaultCellEditor) { ((DefaultCellEditor) o).cancelCellEditing(); } });