/*

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*/

package sortingalgojava;

import javax.swing.text.*;

public class JTextFieldLimit extends PlainDocument {

private int limit;

// optional uppercase conversion

private boolean toUppercase = false;

JTextFieldLimit(int limit) {

super();

this.limit = limit;

}

JTextFieldLimit(int limit, boolean upper) {

super();

this.limit = limit;

toUppercase = upper;

}

public void insertString

(int offset, String str, AttributeSet attr)

throws BadLocationException {

if (str == null) return;

if ((getLength() + str.length()) <= limit) {

if (toUppercase) str = str.toUpperCase();

super.insertString(offset, str, attr);

}

}

}