Java tutorial
/** * Copyright (C) 2013, Moss Computing Inc. * * This file is part of joda-swing. * * joda-swing is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * joda-swing 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 for more details. * * You should have received a copy of the GNU General Public License * along with joda-swing; see the file COPYING. If not, write to the * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301 USA. * * Linking this library statically or dynamically with other modules is * making a combined work based on this library. Thus, the terms and * conditions of the GNU General Public License cover the whole * combination. * * As a special exception, the copyright holders of this library give you * permission to link this library with independent modules to produce an * executable, regardless of the license terms of these independent * modules, and to copy and distribute the resulting executable under * terms of your choice, provided that you also meet, for each linked * independent module, the terms and conditions of the license of that * module. An independent module is a module which is not derived from * or based on this library. If you modify this library, you may extend * this exception to your version of the library, but you are not * obligated to do so. If you do not wish to do so, delete this * exception statement from your version. */ package com.moss.joda.swing; import java.awt.BorderLayout; import java.awt.Component; import java.awt.Dialog; import java.awt.Frame; import java.awt.GridLayout; import java.awt.Window; import java.awt.event.ActionEvent; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JTextField; import javax.swing.SwingUtilities; import org.jdesktop.swingx.JXDatePicker; import org.joda.time.DateTime; import org.joda.time.TimeOfDay; import org.joda.time.format.DateTimeFormat; import org.joda.time.format.DateTimeFormatter; import com.moss.swing.dialog.YesNoBar; import com.moss.swing.test.TestFrame; public class JodaOptionPane { private static DateTimeFormatter[] timeFormats = new DateTimeFormatter[] { DateTimeFormat.forPattern("hh:mm:ss aa"), DateTimeFormat.forPattern("hh:mm aa") }; public static DateTime showInputDialog(Component parent, String message) { return showInputDialog(parent, message, message); } public static DateTime showInputDialog(Component parent, String title, String message) { final JDialog dialog; Window parentWindow = SwingUtilities.getWindowAncestor(parent); if (parentWindow instanceof Dialog) { dialog = new JDialog((Dialog) parentWindow, true); } else { dialog = new JDialog((Frame) parentWindow, true); } dialog.setTitle(title); final DateTimeInputPanel controls = new DateTimeInputPanel(new DateTime(), message, dialog); dialog.setLocationRelativeTo(parent); dialog.setModal(true); dialog.pack(); dialog.setVisible(true); switch (controls.outcome) { case CANCELLED: return null; case SUBMITTED: return controls.selection(); } return null; } private static TimeOfDay parseTime(String text) { if (text == null || text.trim().length() == 0) { return null; } else { DateTime paddedTime = null; for (DateTimeFormatter format : timeFormats) { try { paddedTime = format.parseDateTime(text); } catch (IllegalArgumentException e) { // just means the text is no good. } } if (paddedTime == null) throw new RuntimeException("Unparsable time: " + text); return new TimeOfDay(paddedTime.getHourOfDay(), paddedTime.getMinuteOfHour(), paddedTime.getSecondOfMinute()); } } private enum InputOutcome { CANCELLED, SUBMITTED } private static class DateTimeInputPanel extends JPanel { JPanel controls = new JPanel(); JXDatePicker datePicker = new JXDatePicker(); JTextField timeField = new JTextField(); InputOutcome outcome; public DateTimeInputPanel(final DateTime defaultValue, String message, final JDialog dialog) { controls.setLayout(new GridLayout(1, 0)); controls.add(datePicker); controls.add(timeField); datePicker.setDate(defaultValue.toDate()); timeField.setText(timeFormats[0].print(defaultValue)); Action okAction = new AbstractAction("OK") { public void actionPerformed(ActionEvent e) { try { selection(); outcome = InputOutcome.SUBMITTED; dialog.setVisible(false); } catch (Exception err) { err.printStackTrace(); JOptionPane.showMessageDialog(controls, "Invalid Entry: " + err.getMessage()); } } }; Action cancelAction = new AbstractAction("Cancel") { public void actionPerformed(ActionEvent e) { outcome = InputOutcome.CANCELLED; dialog.setVisible(false); } }; YesNoBar yesNoBar = new YesNoBar(okAction, cancelAction); setLayout(new BorderLayout()); add(new JLabel(message), BorderLayout.NORTH); add(controls); add(yesNoBar, BorderLayout.SOUTH); dialog.add(this); } public DateTime selection() { TimeOfDay time = parseTime(timeField.getText()); System.out.println("Time of day: " + time); DateTime selection = time.toDateTime(new DateTime(datePicker.getDate().getTime())); return selection; } } public static void main(String[] args) { TestFrame f = new TestFrame(); DateTime dt = showInputDialog(f, "Enter Date Please"); System.out.println("Selection: " + dt); } }