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A java common package that enable to deal with various functionalities
/*
This file is part of JOrigin Common Library.
JOrigin Common 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 3 of the License, or
(at your option) any later version.
JOrigin Common 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 JOrigin Common. If not, see monthCB = null;
private JLabel yearLB = null;
private JSpinner yearTF = null;
private SpinnerModel yearTFModel = null;
private JSpinner hourMinuteTF = null;
private boolean showLabel = false;
private boolean listening = true;
/**
* Construct a new default date panel. The date is set by default
* to the current date
*/
public JDatePanel(){
this(new Date());
}
/**
* Construct a new date panel attached to the given date.
* @param date the date to edit within the panel.
*/
public JDatePanel(Date date){
super();
calendar = new GregorianCalendar();
initGUI();
setDate(date);
}
/**
* Init the GUI
*/
protected void initGUI(){
// Initialisation des composants du jour
dayLB = new JLabel(langResource.getString("DATE_DAY"));
dayTFModel = new SpinnerNumberModel(calendar.get(Calendar.DAY_OF_MONTH), 1,
getMaxDay(calendar.get(Calendar.MONTH), calendar.get(Calendar.YEAR)),
1);
dayTF = new JSpinner(dayTFModel);
dayTF.addChangeListener(new ChangeListener(){
@Override
public void stateChanged(ChangeEvent e) {
if (listening){
int day = Integer.parseInt(""+dayTF.getValue());
setDay(day);
fireChangeEvent();
}
}});
monthLB = new JLabel(langResource.getString("DATE_MONTH"));
monthCB = new JComboBox(new String[]{langResource.getString("DATE_JANUARY"),
langResource.getString("DATE_FEBRUARY"),
langResource.getString("DATE_MARCH"),
langResource.getString("DATE_APRIL"),
langResource.getString("DATE_MAY"),
langResource.getString("DATE_JUNE"),
langResource.getString("DATE_JULY"),
langResource.getString("DATE_AUGUST"),
langResource.getString("DATE_SEPTEMBER"),
langResource.getString("DATE_OCTOBER"),
langResource.getString("DATE_NOVEMBER"),
langResource.getString("DATE_DECEMBER")});
monthCB.addItemListener(new ItemListener(){
@Override
public void itemStateChanged(ItemEvent e) {
if (listening){
int month = monthCB.getSelectedIndex();
setMonth(month);
fireChangeEvent();
}
}});
yearLB = new JLabel(langResource.getString("DATE_YEAR"));
yearTFModel = new SpinnerNumberModel(calendar.get(Calendar.YEAR), 1, MAX_YEAR, 1);
yearTF = new JSpinner(yearTFModel);
yearTF.addChangeListener(new ChangeListener(){
@Override
public void stateChanged(ChangeEvent e) {
if (listening){
int year = Integer.parseInt(""+yearTF.getValue());
setYear(year);
fireChangeEvent();
}
}});
Calendar firstDate = new GregorianCalendar();
firstDate.setTime(new Date());
firstDate.set(Calendar.HOUR, 0);
firstDate.set(Calendar.MINUTE, 0);
Calendar lastDate = new GregorianCalendar();
lastDate.setTime(new Date());
lastDate.set(Calendar.HOUR, 23);
lastDate.set(Calendar.MINUTE, 59);
final SpinnerDateModel model = new SpinnerDateModel(calendar.getTime(),
firstDate.getTime(),
lastDate.getTime(),
Calendar.MINUTE);
hourMinuteTF = new JSpinner(model);
JSpinner.DateEditor editor = new JSpinner.DateEditor(hourMinuteTF, "hh:mm");
hourMinuteTF.setEditor(editor);
hourMinuteTF.addChangeListener(new ChangeListener(){
@Override
public void stateChanged(ChangeEvent e) {
if (listening){
Calendar cal = new GregorianCalendar();
cal.setTime(model.getDate());
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
setHour(hour);
setMinute(minute);
cal = null;
fireChangeEvent();
}
}});
this.setLayout(new GridBagLayout());
GridBagConstraints c = null;
Insets labelInsets = new Insets(0,8,0,0);
Insets fieldInsets = new Insets(0,5,0,0);
Insets currentInsets = null;
if (showLabel){
c = new GridBagConstraints ();
c.gridx = 0;
c.gridy = 0;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.NONE;
c.insets = labelInsets;
c.weightx = 0.0;
c.weighty = 0;
this.add(dayLB, c);
currentInsets = fieldInsets;
} else {
currentInsets = new Insets(0,0,0,0);
}
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.HORIZONTAL;
c.insets = currentInsets;
c.weightx = 1.0;
c.weighty = 0;
this.add(dayTF, c);
if (showLabel){
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.NONE;
c.insets = labelInsets;
c.weightx = 0.0;
c.weighty = 0;
this.add(monthLB, c);
}
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.HORIZONTAL;
c.insets = fieldInsets;
c.weightx = 1.0;
c.weighty = 0;
this.add(monthCB, c);
if (showLabel){
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.NONE;
c.insets = labelInsets;
c.weightx = 0.0;
c.weighty = 0;
this.add(yearLB, c);
}
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = 1;
c.fill = GridBagConstraints.HORIZONTAL;
c.insets = fieldInsets;
c.weightx = 1.0;
c.weighty = 0;
this.add(yearTF, c);
c = new GridBagConstraints ();
c.gridx = GridBagConstraints.RELATIVE;
c.gridy = GridBagConstraints.RELATIVE;
c.gridheight= 1;
c.gridwidth = GridBagConstraints.REMAINDER;
c.fill = GridBagConstraints.HORIZONTAL;
c.insets = fieldInsets;
c.weightx = 1.0;
c.weighty = 0;
this.add(hourMinuteTF, c);
c = null;
labelInsets = new Insets(0,8,0,0);
fieldInsets = new Insets(0,5,0,0);
currentInsets = null;
}
/**
* Update the panel graphical components. The components shows the current date.
* @see #setDate(Date)
* @see #getDate()
*/
protected void updateGUI(){
listening = false;
dayTF.setValue(calendar.get(Calendar.DAY_OF_MONTH));
monthCB.setSelectedIndex(calendar.get(Calendar.MONTH));
monthCB.setSelectedItem(monthCB.getSelectedItem());
yearTF.setValue(calendar.get(Calendar.YEAR));
hourMinuteTF.setValue(calendar.getTime());
listening = true;
}
/**
* Get the date attached to this panel
* @return the java object representing the date attached to this panel.
* @see #setDate(Date)
*/
public Date getDate(){
return calendar.getTime();
}
/**
* Set the date attached to this panel
* @param newDate the java object representing the date to attach to this panel.
* @see #getDate()
*/
public void setDate(Date newDate){
if (newDate != null){
listening = false;
calendar.setTime(newDate);
updateGUI();
listening = true;
}
}
/**
* Get the minute of the hour (0 - 59) specified by the current date
* @return the minute in the hour.
* @see #setMinute(int)
*/
public int getMinute(){
return calendar.get(Calendar.MINUTE);
}
/**
* Set the minute of the hour (0 - 59) specified by the current date
* @param minute the minute in the hour.
* @see #getMinute()
*/
public void setMinute(int minute){
if ((minute < 0) || (minute > 59)){
return;
} else {
calendar.set(Calendar.MINUTE, minute);
updateGUI();
}
}
/**
* Get the hour of the date
* @return the hour of the day (0 - 24)
* @see #setHour(int)
*/
public int getHour(){
return calendar.get(Calendar.HOUR_OF_DAY);
}
/**
* Set the hour of the date.
* @param hour the hour of the day (0 - 24)
* @see #getHour()
*/
public void setHour(int hour){
if ((hour < 0) || (hour > 23)){
return;
} else {
calendar.set(Calendar.HOUR_OF_DAY, hour);
updateGUI();
}
}
/**
* Get the month of the date.
* @return the month of the date as stated in Calendar class
* @see #setMonth(int)
*/
public int getMonth(){
return calendar.get(Calendar.MONTH);
}
/**
* Set the month of the date. The month is given by the variable available in the class.
* If the day is not compatible with the given month, day is changed to match the new month.
* @param month the month.
* @see #getMonth()
*/
public void setMonth(int month){
if ((month < 1) || (month > 12)){
return;
} else {
calendar.set(Calendar.MONTH, month);
int maxDay = getMaxDay(month, calendar.get(Calendar.YEAR));
if (calendar.get(Calendar.DAY_OF_MONTH) > maxDay){
calendar.set(Calendar.DAY_OF_MONTH, maxDay);
}
updateGUI();
}
}
/**
* Get the day of the date. The day number if the day in the month.
* @return int the day of the date (month relative).
* @see #setDay(int)
*/
public int getDay(){
return calendar.get(Calendar.DAY_OF_MONTH);
}
/**
* Set the day of the date. If the day does not fit the month and the year,
* it is changed to fit.
* @param day the day of the date
* @see #getDay()
*/
public void setDay(int day){
int maxDay = getMaxDay(calendar.get(Calendar.MONTH), calendar.get(Calendar.YEAR));
if (!((day < 1) || (day > maxDay))){
calendar.set(Calendar.DAY_OF_MONTH, day);
updateGUI();
}
}
/**
* Return the year of the date.
* @return the year of the date.
* @see #setYear(int)
*/
public int getYear(){
return calendar.get(Calendar.YEAR);
}
/**
* Set the year of the date. A year has to be positive.
* @param year the year of the date.
* @see #getYear()
*/
public void setYear(int year){
if (year > 0){
calendar.set(Calendar.YEAR, year);
int maxDay = getMaxDay(calendar.get(Calendar.MONTH), year);
// Verification que si l'année est bisextile est le mois actuel est fevrier,
// le jour ne doit pas être superieur à 29.
if (calendar.get(Calendar.DAY_OF_MONTH) > maxDay){
calendar.set(Calendar.DAY_OF_MONTH, maxDay);
}
updateGUI();
}
}
/**
* Get the maximal day number for the given month in the given year
* (year is needed for the computation of bisextile years).
* @param month the month of the date
* @param year the year of the date
* @return the maximal day number in the month.
*/
private int getMaxDay(int month, int year){
switch(month){
case JANUARY:
case MARCH:
case MAY:
case JULY:
case AUGUST:
case OCTOBER:
case DECEMBER:
return 31;
case APRIL:
case JUNE:
case SEPTEMBER:
case NOVEMBER:
return 30;
case FEBRUARY:
if (isBisextile(year)){
return 29;
} else {
return 28;
}
default: return -1;
}
}
/**
* Compute if the given year if a bisextile year. A year is bisextile if it can be
* divided by 400 or if it can be divided by 4 but not by 100 at the same time.
* @param year the year to check
* @return true if the year is bisextile, false otherwise.
*/
public boolean isBisextile(int year){
if (year % 400 == 0){
return true;
} else if ((year % 4 == 0) && (year % 100 != 100)){
return true;
} else {
return false;
}
}
/**
* Add a {@link javax.swing.event.ChangeListener} to this panel.
* @param l the listener to attach to this panel
* @see #removeChangeListener(ChangeListener)
*/
public void addChangeListener(ChangeListener l){
idListenerList.add(ChangeListener.class, l);
}
/**
* Remove the given {@link javax.swing.event.ChangeListener} from the panel.
* @param l the listener to detach from the panel.
* @see #addChangeListener(ChangeListener)
*/
public void removeChangeListener(ChangeListener l){
idListenerList.remove(ChangeListener.class, l);
}
/**
* Fire a change event to all the registered {@link javax.swing.event.ChangeListener}
* @see #addChangeListener(ChangeListener)
* @see #removeChangeListener(ChangeListener)
*/
protected void fireChangeEvent(){
ChangeEvent e = new ChangeEvent(this);
Object[] listeners = idListenerList.getListenerList();
for (int i = listeners.length - 2; i >= 0; i -= 2) {
if (listeners[i] == ChangeListener.class) {
( (ChangeListener) listeners[i + 1]).stateChanged(e);
}
}
}
}