/*
* Copyright 2010 JBoss Inc
*
* 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 org.drools.guvnor.client.modeldriven.ui;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.user.client.ui.*;
import org.drools.guvnor.client.messages.Constants;
import java.util.Date;
public class DatePickerPopUp extends PopupPanel {
private Label timeColonLabel = new Label(":");
private Label timeHyphenLabel = new Label(" - ");
// It is show time! (When to show time next to date selectors)
protected boolean showTime = false;
protected ListBox years = new ListBox();
protected ListBox months = new ListBox();
protected ListBox dates = new ListBox();
protected ListBox hours = new ListBox();
protected ListBox minutes = new ListBox();
/**
* @param okClickHandler What to do when ok, is pressed
* @param showTime Can you select time too.
*/
public DatePickerPopUp(ClickHandler okClickHandler,
DateTimeFormat formatter) {
setGlassEnabled(true);
HorizontalPanel horizontalPanel = new HorizontalPanel();
// Add years
// Take the current year and add 50 to each sides
Date now = new Date();
int year = now.getYear() + 1900 - 50;
for (int i = year; i < (year + 100); i++) {
years.addItem(Integer.toString(i));
}
years.setSelectedIndex(50);
horizontalPanel.add(years);
// Add months
Constants constants = ((Constants) GWT.create(Constants.class));
months.addItem(constants.January());
months.addItem(constants.February());
months.addItem(constants.March());
months.addItem(constants.April());
months.addItem(constants.May());
months.addItem(constants.June());
months.addItem(constants.July());
months.addItem(constants.August());
months.addItem(constants.September());
months.addItem(constants.October());
months.addItem(constants.November());
months.addItem(constants.December());
months.addChangeHandler(new ChangeHandler() {
public void onChange(ChangeEvent event) {
fillDates();
}
});
horizontalPanel.add(months);
// Add dates
fillDates();
horizontalPanel.add(dates);
showTime = hasTime(formatter);
if (showTime) {
// Hours
for (int i = 0; i < 24; i++) {
hours.addItem(Integer.toString(i));
}
horizontalPanel.add(timeHyphenLabel);
horizontalPanel.add(hours);
// Minutes
for (int i = 0; i < 60; i++) {
minutes.addItem(Integer.toString(i));
}
horizontalPanel.add(timeColonLabel);
horizontalPanel.add(minutes);
}
Button okButton = new Button(constants.OK());
okButton.addClickHandler(okClickHandler);
horizontalPanel.add(okButton);
add(horizontalPanel);
}
/**
* Simple check, if time format has hours it has time.
*
* @param formatter
* @return
*/
private boolean hasTime(DateTimeFormat formatter) {
return formatter.getPattern().contains("h") || formatter.getPattern().contains("H") || formatter.getPattern().contains("k") || formatter.getPattern().contains("K");
}
private void setTimeVisible(boolean visible) {
hours.setVisible(visible);
minutes.setVisible(visible);
timeHyphenLabel.setVisible(visible);
timeColonLabel.setVisible(visible);
}
/**
* Sets the current year, month ect to dropdowns.
*/
public void setDropdowns(DateTimeFormat formatter,
String text) {
Date date;
try {
date = formatter.parse(text);
} catch (Exception e) {
date = new Date();
}
// Set year
years.clear();
int year = date.getYear() + 1900 - 50;
for (int i = 0; i < 100; i++) {
years.addItem(Integer.toString(year));
if (year == (date.getYear() + 1900)) {
years.setSelectedIndex(i);
}
year++;
}
// month
months.setSelectedIndex(date.getMonth());
// day
dates.setSelectedIndex(date.getDate() - 1);
setTimeVisible(showTime);
if (showTime) {
// hours
hours.setSelectedIndex(date.getHours());
// minutes
minutes.setSelectedIndex(date.getMinutes());
}
}
private void fillDates() {
setVisible(false);
dates.clear();
// Check month
int days = daysInMonth(months.getSelectedIndex() + 1);
for (int i = 1; i <= days; i++) {
dates.addItem(Integer.toString(i));
}
setVisible(true);
}
private int daysInMonth(int month) {
switch (month) {
case 2:
// Can be 28 or 29, returns 29 just in case
return 29;
case 4:
case 6:
case 9:
case 11:
return 30;
default:
return 31;
}
}
}