pjs/grendel/widgets/ToggleCellEditor.java

122 строки
3.3 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Contributors: Jeff Galyan <talisman@anamorphic.com>
*/
package grendel.widgets;
import java.awt.AWTEvent;
import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.util.EventObject;
import javax.swing.event.CellEditorListener;
import javax.swing.JCheckBox;
import javax.swing.event.ChangeEvent;
import javax.swing.UIManager;
public class ToggleCellEditor implements CellEditor, ActionListener {
JCheckBox fToggle;
CellEditorListener fListener;
public ToggleCellEditor() {
fToggle = new JCheckBox() {
public void requestFocus() {
}
};
fToggle.addActionListener(this);
}
public boolean isCellEditable(EventObject aEvent) {
if (aEvent instanceof MouseEvent) {
return (((MouseEvent) aEvent).getClickCount() == 1);
}
return false;
}
public boolean shouldSelectCell(EventObject aEvent) {
return false;
}
public boolean startCellEditing(EventObject aEvent) {
if (aEvent instanceof AWTEvent) {
fToggle.dispatchEvent((AWTEvent) aEvent);
}
return true;
}
public boolean stopCellEditing() {
if (fListener != null) {
fListener.editingStopped(new ChangeEvent(this));
}
return true;
}
public void cancelCellEditing() {
if (fListener != null) {
fListener.editingCanceled(new ChangeEvent(this));
}
}
public void setValue(Object aObject, Object aData, boolean aSelected) {
if (aSelected) {
fToggle.setBackground(UIManager.getColor("textHighlight"));
fToggle.setForeground(UIManager.getColor("textHighlightText"));
} else {
fToggle.setBackground(UIManager.getColor("window"));
fToggle.setForeground(UIManager.getColor("textText"));
}
if (aData instanceof Boolean) {
fToggle.setSelected(((Boolean) aData).booleanValue());
} else {
fToggle.setSelected(false);
}
}
public Component getCellEditorComponent() {
return fToggle;
}
public Object getCellEditorValue() {
return new Boolean(fToggle.isSelected());
}
public void addCellEditorListener(CellEditorListener aListener) {
fListener = aListener;
}
public void removeCellEditorListener(CellEditorListener aListener) {
if (fListener == aListener) {
fListener = null;
}
}
public void actionPerformed(ActionEvent e) {
if (fListener != null) {
fListener.editingStopped(new ChangeEvent(this));
}
}
public JCheckBox getCheckBox() {
return fToggle;
}
}