| /* |
| * Copyright (c) 2000, 2001, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| package javax.swing.text; |
| |
| import java.awt.event.*; |
| import java.text.*; |
| import java.util.*; |
| import javax.swing.*; |
| import javax.swing.text.*; |
| |
| /** |
| * DateFormatter is an <code>InternationalFormatter</code> that does its |
| * formatting by way of an instance of <code>java.text.DateFormat</code>. |
| * <p> |
| * <strong>Warning:</strong> |
| * Serialized objects of this class will not be compatible with |
| * future Swing releases. The current serialization support is |
| * appropriate for short term storage or RMI between applications running |
| * the same version of Swing. As of 1.4, support for long term storage |
| * of all JavaBeans<sup><font size="-2">TM</font></sup> |
| * has been added to the <code>java.beans</code> package. |
| * Please see {@link java.beans.XMLEncoder}. |
| * |
| * @see java.text.DateFormat |
| * |
| * @since 1.4 |
| */ |
| public class DateFormatter extends InternationalFormatter { |
| /** |
| * This is shorthand for |
| * <code>new DateFormatter(DateFormat.getDateInstance())</code>. |
| */ |
| public DateFormatter() { |
| this(DateFormat.getDateInstance()); |
| } |
| |
| /** |
| * Returns a DateFormatter configured with the specified |
| * <code>Format</code> instance. |
| * |
| * @param format Format used to dictate legal values |
| */ |
| public DateFormatter(DateFormat format) { |
| super(format); |
| setFormat(format); |
| } |
| |
| /** |
| * Sets the format that dictates the legal values that can be edited |
| * and displayed. |
| * <p> |
| * If you have used the nullary constructor the value of this property |
| * will be determined for the current locale by way of the |
| * <code>Dateformat.getDateInstance()</code> method. |
| * |
| * @param format DateFormat instance used for converting from/to Strings |
| */ |
| public void setFormat(DateFormat format) { |
| super.setFormat(format); |
| } |
| |
| /** |
| * Returns the Calendar that <code>DateFormat</code> is associated with, |
| * or if the <code>Format</code> is not a <code>DateFormat</code> |
| * <code>Calendar.getInstance</code> is returned. |
| */ |
| private Calendar getCalendar() { |
| Format f = getFormat(); |
| |
| if (f instanceof DateFormat) { |
| return ((DateFormat)f).getCalendar(); |
| } |
| return Calendar.getInstance(); |
| } |
| |
| |
| /** |
| * Returns true, as DateFormatterFilter will support |
| * incrementing/decrementing of the value. |
| */ |
| boolean getSupportsIncrement() { |
| return true; |
| } |
| |
| /** |
| * Returns the field that will be adjusted by adjustValue. |
| */ |
| Object getAdjustField(int start, Map attributes) { |
| Iterator attrs = attributes.keySet().iterator(); |
| |
| while (attrs.hasNext()) { |
| Object key = attrs.next(); |
| |
| if ((key instanceof DateFormat.Field) && |
| (key == DateFormat.Field.HOUR1 || |
| ((DateFormat.Field)key).getCalendarField() != -1)) { |
| return key; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Adjusts the Date if FieldPosition identifies a known calendar |
| * field. |
| */ |
| Object adjustValue(Object value, Map attributes, Object key, |
| int direction) throws |
| BadLocationException, ParseException { |
| if (key != null) { |
| int field; |
| |
| // HOUR1 has no corresponding calendar field, thus, map |
| // it to HOUR0 which will give the correct behavior. |
| if (key == DateFormat.Field.HOUR1) { |
| key = DateFormat.Field.HOUR0; |
| } |
| field = ((DateFormat.Field)key).getCalendarField(); |
| |
| Calendar calendar = getCalendar(); |
| |
| if (calendar != null) { |
| calendar.setTime((Date)value); |
| |
| int fieldValue = calendar.get(field); |
| |
| try { |
| calendar.add(field, direction); |
| value = calendar.getTime(); |
| } catch (Throwable th) { |
| value = null; |
| } |
| return value; |
| } |
| } |
| return null; |
| } |
| } |