Java tutorial
/* Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.klwork.explorer.ui.custom; import java.text.DateFormat; import java.text.MessageFormat; import java.text.SimpleDateFormat; import java.util.Date; import com.klwork.explorer.Constants; import com.klwork.explorer.I18nManager; import com.klwork.explorer.ViewToolManager; import com.klwork.explorer.util.time.HumanTime; import com.vaadin.ui.Label; /** * Label that renders the given date in a human readable format. The tooltip * contains the date, using the default date formatting. * * @author Frederik Heremans * @author Joram Barrez */ public class PrettyTimeLabel extends Label { private static final long serialVersionUID = 1L; protected String labelTemplate; protected Date date; protected String noDateCaption; protected boolean showTime; public PrettyTimeLabel(Date date, boolean showTime) { this(date, "", showTime); } public PrettyTimeLabel(Date date, String noDateCaption, boolean showTime) { this(null, date, noDateCaption, showTime); } /** * Constructor for pretty time label. * * @param labelTemplate * template to use for date, eg. "Date: {0}". Null, if date/time * should just be shown. * @param date * to show * @param noDateCaption * caption of label to show when dat is null. Empty label is * shown when null. */ public PrettyTimeLabel(String labelTemplate, Date date, String noDateCaption, boolean showTime) { this.labelTemplate = labelTemplate; this.date = date; this.noDateCaption = noDateCaption; this.showTime = showTime; init(); } protected void init() { final I18nManager i18nManager = ViewToolManager.getI18nManager(); if (date != null) { DateFormat dateFormat = null; if (showTime) { dateFormat = new SimpleDateFormat(Constants.DEFAULT_TIME_FORMAT); } else { dateFormat = new SimpleDateFormat(Constants.DEFAULT_DATE_FORMAT); } if (labelTemplate != null) { super.setValue(MessageFormat.format(labelTemplate, new HumanTime(i18nManager).format(date))); } else { super.setValue(new HumanTime(i18nManager).format(date)); } setDescription(dateFormat.format(date)); } else { super.setValue(noDateCaption); setDescription(noDateCaption); } } public void setValue(Date newValue) { if (newValue instanceof Date) { date = (Date) newValue; init(); } } public void setValue(String newValue) { date = null; init(); } }