/*******************************************************************************
* Copyright (c) MOBAC developers
*
* 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
* (at your option) 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, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package mobac.gui.components;
import java.awt.Toolkit;
import java.util.regex.Pattern;
import javax.swing.JTextField;
import javax.swing.text.AttributeSet;
import javax.swing.text.BadLocationException;
import javax.swing.text.PlainDocument;
public class JRegexTextField extends JTextField {
private static final long serialVersionUID = 1L;
public JRegexTextField(String regex, int maxLength) {
super();
setDocument(new AtlasNameDocument(regex, maxLength));
}
public class AtlasNameDocument extends PlainDocument {
private static final long serialVersionUID = 1L;
public Pattern pattern;
public int maxLength;
public AtlasNameDocument(String regex, int maxLength) {
super();
pattern = Pattern.compile(regex);
this.maxLength = maxLength;
}
public void insertString(int offset, String str, AttributeSet attr)
throws BadLocationException {
if (str == null)
return;
if (!pattern.matcher(str).matches()) {
Toolkit.getDefaultToolkit().beep();
return;
}
String oldText = JRegexTextField.this.getText();
super.insertString(offset, str, attr);
// Maximum length exceeded?
if (JRegexTextField.this.getText().length() > maxLength) {
JRegexTextField.this.setText(oldText);
Toolkit.getDefaultToolkit().beep();
}
}
}
}