/*
* The MIT License
*
* Copyright 2014, 2015, 2016 Rui Martinho (rmartinho@gmail.com), António Braz (antoniocbraz@gmail.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package org.poreid.dialogs.pindialogs;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
/**
*
* @author POReID
*/
public class MyDocument extends PlainDocument {
private int length;
public MyDocument(int length) {
this.length = length;
}
@Override
public void insertString(int offs, String str, AttributeSet a) throws BadLocationException {
if (str == null || str.equals("") || !isNumeric(str)) {
return;
}
if (getText(0, getLength()).length() + str.length() > length) {
String newStr = str.substring(0, length - getLength());
super.insertString(offs, newStr, a);
return;
}
super.insertString(offs, str, a);
}
private boolean isNumeric(String str) {
for (char c : str.toCharArray()) {
if (!Character.isDigit(c)) {
return false;
}
}
return true;
}
}