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/* |
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$Id$ |
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|
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Copyright (C) 2006 Olle Mansson |
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Copyright (C) 2007 Gregory Vincic |
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|
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This file is part of Proteios. |
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Available at http://www.proteios.org/ |
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|
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Proteios is free software; you can redistribute it and/or modify it |
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under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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|
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Proteios is distributed in the hope that it will be useful, but |
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WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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General Public License for more details. |
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|
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
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02111-1307, USA. |
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*/ |
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|
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// Xerver Free Web Server |
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// Copyright (C) 2002-2005 Omid Rouhani |
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// |
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// |
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// This program is free software; you can redistribute it and/or |
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// modify it under the terms of the GNU General Public License |
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// as published by the Free Software Foundation; either version 2 |
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// of the License, or (at your option) any later version. |
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// |
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// This program is distributed in the hope that it will be useful, |
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// but WITHOUT ANY WARRANTY; without even the implied warranty of |
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olle |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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olle |
// GNU General Public License for more details. |
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// |
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// You should have received a copy of the GNU General Public License |
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// along with this program; if not, write to the Free Software |
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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// |
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// |
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// ############################################################# |
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// ## YOU CAN CONTACT THE AUTHOR (OMID ROUHANI) AT: ## |
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// ## HTTP://WWW.JAVASCRIPT.NU/XERVER/ ## |
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// ## ## |
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// ## IF YOUR SOFTWARE IS NOT RELEASED UNDER THE ## |
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// ## GNU GENERAL PUBLIC LICENSE (GPL), ## |
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// ## PLEASE DO NOT COPY ANYTHING FROM THIS SOURCE CODE!!! ## |
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// ## ## |
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// ## FOR FULL LICENSE, PLEASE READ "XERVER LICENSE". ## |
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// ############################################################# |
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|
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package se.lu.thep.coreftpd.webserver; |
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|
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import java.awt.event.KeyEvent; |
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import java.awt.event.KeyListener; |
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import javax.swing.JTextField; |
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|
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/** |
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* |
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* <B>About this class:</B> <BR> |
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* A <CODE>JTextField</CODE> that only supports integers >= 0 (the "-" might |
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* not appear in the field). <BR> |
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* The field can be empty. <BR> |
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* Nothing but numbers 0-9 can be in this field. |
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* |
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* @author <a href="http://www.JavaScript.nu/xerver/" TARGET="_top">Omid Rouhani</a> |
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* @version 1.0 |
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*/ |
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|
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@SuppressWarnings("serial") |
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public class JTextFieldInt extends JTextField implements KeyListener { |
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public JTextFieldInt() { |
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super(); |
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addKeyListener(this); |
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} |
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|
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public JTextFieldInt(int nrCols) { |
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super(nrCols); |
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addKeyListener(this); |
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} |
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|
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public JTextFieldInt(int value, int nrCols) { |
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super(Integer.toString(value), nrCols); |
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addKeyListener(this); |
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} |
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|
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public JTextFieldInt(String value, int nrCols) { |
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super(value, nrCols); |
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addKeyListener(this); |
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} |
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|
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// implementation of KeyListener |
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public void keyPressed(KeyEvent e) { |
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} |
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|
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public void keyReleased(KeyEvent e) { |
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} |
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|
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public void keyTyped(KeyEvent e) { |
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char c = e.getKeyChar(); |
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|
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if (Character.isDigit(c) || c == KeyEvent.VK_BACK_SPACE |
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|| c == KeyEvent.VK_DELETE || c == KeyEvent.VK_ENTER |
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|| c == KeyEvent.VK_TAB) { |
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// everythig is fine |
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} else { |
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// consume the event => NumericField will not get an invalid char |
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e.consume(); |
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}// end if |
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} |
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|
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} |