/*
* mongobrowser - a webstart gui application for viewing,
* editing and administering a Mongo Database
* Copyright 2009-2011 MeBigFatGuy.com
* Copyright 2009-2011 Dave Brosius
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and limitations
* under the License.
*/
package com.mebigfatguy.mongobrowser.dialogs;
import java.awt.Toolkit;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
/**
* a JTextComponent model class that only allows Integer values
*/
public class IntegerDocument extends PlainDocument {
private static final long serialVersionUID = -6755728406523769124L;
/**
* intercepts string insertions to make sure that the values to be put into
* a text component is only an integer value
*
* @param pos
* where the text is being inserted
* @param insertStr
* the new text that was typed
* @param atts
* the attributes for the text (unused)
*/
@Override
public void insertString(int pos, String insertStr, AttributeSet atts) throws BadLocationException {
StringBuilder text = new StringBuilder(getText(0, getLength()));
try {
text.insert(pos, insertStr);
Integer.parseInt(text.toString());
super.insertString(pos, insertStr, atts);
} catch (Exception e) {
Toolkit.getDefaultToolkit().beep();
}
}
}