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The source code/* * Copyright (C) The Apache Software Foundation. All rights reserved. * * This software is published under the terms of the Apache Software * License version 1.1, a copy of which has been included with this * distribution in the LICENSE.txt file. */ package org.apache.log4j.lf5.viewer.categoryexplorer; import javax.swing.*; import javax.swing.event.CellEditorListener; import javax.swing.event.ChangeEvent; import javax.swing.event.EventListenerList; import javax.swing.table.TableCellEditor; import javax.swing.tree.TreeCellEditor; import java.awt.*; import java.awt.event.MouseEvent; import java.util.EventObject; /** * CategoryAbstractCellEditor. Base class to handle the some common * details of cell editing. * * @author Michael J. Sikorsky * @author Robert Shaw */ // Contributed by ThoughtWorks Inc. public class CategoryAbstractCellEditor implements TableCellEditor, TreeCellEditor { //-------------------------------------------------------------------------- // Constants: //-------------------------------------------------------------------------- //-------------------------------------------------------------------------- // Protected Variables: //-------------------------------------------------------------------------- protected EventListenerList _listenerList = new EventListenerList(); protected Object _value; protected ChangeEvent _changeEvent = null; protected int _clickCountToStart = 1; //-------------------------------------------------------------------------- // Private Variables: //-------------------------------------------------------------------------- //-------------------------------------------------------------------------- // Constructors: //-------------------------------------------------------------------------- //-------------------------------------------------------------------------- // Public Methods: //-------------------------------------------------------------------------- public Object getCellEditorValue() { return _value; } public void setCellEditorValue(Object value) { _value = value; } public void setClickCountToStart(int count) { _clickCountToStart = count; } public int getClickCountToStart() { return _clickCountToStart; } public boolean isCellEditable(EventObject anEvent) { if (anEvent instanceof MouseEvent) { if (((MouseEvent) anEvent).getClickCount() < _clickCountToStart) { return false; } } return true; } public boolean shouldSelectCell(EventObject anEvent) { if (this.isCellEditable(anEvent)) { if (anEvent == null || ((MouseEvent) anEvent).getClickCount() >= _clickCountToStart) { return true; } } return false; } public boolean stopCellEditing() { fireEditingStopped(); return true; } public void cancelCellEditing() { fireEditingCanceled(); } public void addCellEditorListener(CellEditorListener l) { _listenerList.add(CellEditorListener.class, l); } public void removeCellEditorListener(CellEditorListener l) { _listenerList.remove(CellEditorListener.class, l); } public Component getTreeCellEditorComponent( JTree tree, Object value, boolean isSelected, boolean expanded, boolean leaf, int row) { return null; } public Component getTableCellEditorComponent( JTable table, Object value, boolean isSelected, int row, int column) { return null; } //-------------------------------------------------------------------------- // Protected Methods: //-------------------------------------------------------------------------- protected void fireEditingStopped() { Object[] listeners = _listenerList.getListenerList(); for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == CellEditorListener.class) { if (_changeEvent == null) { _changeEvent = new ChangeEvent(this); } ((CellEditorListener) listeners[i + 1]).editingStopped(_changeEvent); } } } protected void fireEditingCanceled() { Object[] listeners = _listenerList.getListenerList(); for (int i = listeners.length - 2; i >= 0; i -= 2) { if (listeners[i] == CellEditorListener.class) { if (_changeEvent == null) { _changeEvent = new ChangeEvent(this); } ((CellEditorListener) listeners[i + 1]).editingCanceled(_changeEvent); } } } //-------------------------------------------------------------------------- // Private Methods: //-------------------------------------------------------------------------- //-------------------------------------------------------------------------- // Nested Top-Level Classes or Interfaces: //-------------------------------------------------------------------------- } |
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