longcelleditor.java

具有不同语法高亮的编辑器实例

/*
 * 08/10/2005
 *
 * LongCellEditor.java - Editor component for longs.
 * Copyright (C) 2005 Robert Futrell
 * [e-mail]
 * www.website.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package org.fife.ui.propertysheet.editors;

import javax.swing.JTextField;


/**
 * Table cell editor for longs.
 *
 * @author Robert Futrell
 * @version 1.0
 */
public class LongCellEditor extends IntegerCellEditor {

	/**
	 * 
	 */
	private static final long serialVersionUID = -5482632629323146642L;


/*****************************************************************************/


	public LongCellEditor() {
		super();
	}


/*****************************************************************************/


	public Object getCellEditorValue() {
		long value = 0;
		try {
			String text = (String)((JTextField)editorComponent).getText();
			value = Long.parseLong(text);
		} catch (NumberFormatException nfe) { // Should never happen.
			value = Long.MIN_VALUE;
		}
		cachedInfo.setValue(new Long(value));
		return cachedInfo;
	}


/*****************************************************************************/


	/**
	 * Called when an editor is about to stop editing.  This method is used
	 * to determine whether or not the editing should actually stop.  It
	 * checks whether the entered value is a Java long; if not, an error
	 * is displayed and editing continues.
	 *
	 * @return Whether or not editing should cease.
	 */
	public boolean stopCellEditing() {
		JTextField component = (JTextField)getComponent();
		String text = component.getText();
		try {
			Long.parseLong(text);
		} catch (NumberFormatException nfe) {
			return doCancel(text, "Editor.ErrorMessage.Long");
		}
		// NOTE:  Don't call super.stopCellEditing(), as that is integer-
		// specific.  Just do its superclass (actually AbstractCellEditor)'s
		// stuff.
		//return super.stopCellEditing();
		fireEditingStopped();
		return true;
	}


/*****************************************************************************/

}