74 lines
1.8 KiB
Java
74 lines
1.8 KiB
Java
//This file is part of SECONDO.
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//Copyright (C) 2004, University in Hagen, Department of Computer Science,
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//Database Systems for New Applications.
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//SECONDO is free software; you can redistribute it and/or modify
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//it 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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//SECONDO 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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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//You should have received a copy of the GNU General Public License
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//along with SECONDO; 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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package util.common;
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import java.awt.event.FocusEvent;
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import java.awt.event.FocusListener;
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import javax.swing.JTextField;
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/**
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* This component is {@link JTextField} which manages a text which is shown when the
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* component doesn't have the focus and the user hasn't entered some text.
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* @author D.Merle
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*/
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public class SearchField extends JTextField implements FocusListener {
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private final String standardNote;
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/**
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*
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* @param standardNote
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*/
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public SearchField(final String standardNote) {
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super(standardNote);
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this.standardNote = standardNote;
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addFocusListener(this);
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}
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/**
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*
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*/
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@Override
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public void focusGained(final FocusEvent e) {
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final String text = getText();
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if (text != null && text.trim().equals(standardNote)) {
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setText("");
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}
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}
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/**
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*
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*/
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@Override
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public void focusLost(final FocusEvent e) {
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final String text = getText();
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if (text != null && text.trim().equals("")) {
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setText(standardNote);
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}
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}
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/**
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*
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* @return
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*/
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public String getStandardNote() {
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return standardNote;
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}
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} |