/***************************************************************************
GanttCalendar.java - description
-------------------
begin : dec 2002
copyright : (C) 2002 by Thomas Alexandre
email : alexthomas(at)ganttproject.org
***************************************************************************/
/***************************************************************************
* *
* This program 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 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
package net.sourceforge.ganttproject;
import java.io.Serializable;
import java.util.Calendar;
import java.util.Comparator;
import java.util.Date;
import net.sourceforge.ganttproject.language.GanttLanguage;
import net.sourceforge.ganttproject.time.gregorian.GregorianCalendar;
import org.w3c.util.DateParser;
import org.w3c.util.InvalidDateException;
/**
* Class use for calendar
*/
public class GanttCalendar extends GregorianCalendar implements Serializable
{
private GanttLanguage language = GanttLanguage.getInstance();
private boolean isFixed;
public boolean isFixed() {
return isFixed;
}
public void setFixed(boolean fixed) {
isFixed = fixed;
}
/** Default constructor */
public GanttCalendar() {
super();
set(Calendar.HOUR_OF_DAY, 0);
set(Calendar.MINUTE, 0);
set(Calendar.SECOND, 0);
set(Calendar.MILLISECOND, 0);
}
/** Constructor with a year, a month and a day */
public GanttCalendar(int year, int month, int date) {
super(year, month, date);
}
/** Copy constructor */
public GanttCalendar(GanttCalendar g) {
super(g.getYear(), g.getMonth(), g.getDate());
}
public GanttCalendar(Date date) {
super();
setTime(date);
}
// ////////////////////////////////////////////////////////////////////////////////////////////////////
public static GanttCalendar parseXMLDate(String s) {
GanttCalendar result = new GanttCalendar();
result.clear();
try {
Date date = DateParser.parse(s);
result.setTime(date);
} catch (InvalidDateException e) {
// Get "/" caracters
int fb = s.indexOf('/');
int sb = s.indexOf('/', fb + 1);
// Get all fiels
String d = s.substring(0, fb);
String m = s.substring(fb + 1, sb);
String y = s.substring(sb + 1);
// Set the date
result.set(Calendar.YEAR, new Integer(y).hashCode());
result.set(Calendar.MONTH, new Integer(m).hashCode() - 1);
result.set(Calendar.DATE, new Integer(d).hashCode());
}
return result;
}
/** Return a clone of the calendar */
public GanttCalendar Clone() {
GanttCalendar clone = new GanttCalendar(getYear(), getMonth(), getDay());
clone.setFixed(isFixed());
return clone;
}
/** Return the date to A string */
public String toString() {
return (language.formatShortDate(this));
//return (language.formatDate(this));
}
public String toXMLString() {
// return getDate() + "/" + (getMonth() + 1) + "/" + getYear();
return DateParser.getIsoDateNoHours(getTime());
}
/** Return the year */
public int getYear() {
return this.get(Calendar.YEAR);
}
/** Return the month */
public int getMonth() {
return this.get(Calendar.MONTH);
}
/** Return the day */
public int getDate() {
return this.get(Calendar.DATE);
}
/** Return the day */
public int getDay() {
return this.get(Calendar.DAY_OF_MONTH);
}
/** Return the number of the day on the week */
public int getDayWeek() {
return this.get(Calendar.DAY_OF_WEEK);
}
/** Return the numbner of the week on the year */
public int getWeek() {
return this.get(Calendar.WEEK_OF_YEAR);
}
/** Return an array with all name of month */
public String[] getDayMonthLanguage() {
String[] res = new String[12];
for (int i = 0; i < 12; i++)
res[i] = language.getMonth(i);
return res;
}
/** Return an array with all name of day */
public String[] getDayWeekLanguage() {
String[] res = new String[7];
for (int i = 0; i < 7; i++)
res[i] = language.getDay(i);
return res;
}
/** Change the year of the date */
public void setYear(int y) {
this.set(Calendar.YEAR, y);
}
/** Change the month of the date */
public void setMonth(int m) {
this.set(Calendar.MONTH, m);
}
/** Change the date of the date */
public void setDay(int d) {
this.set(Calendar.DAY_OF_MONTH, d);
}
/** Add a number of day to the current date */
public void add(int dayNumber) {
this.add(Calendar.DATE, dayNumber);
}
/** Change the year of the date, and return a copy */
public GanttCalendar newAdd(int dayNumber) {
GanttCalendar gc = new GanttCalendar(getYear(), getMonth(), getDate());
gc.add(Calendar.DATE, dayNumber);
return gc;
}
/**
* @deprecated Use TimeUnit related methods
* Return the difference (in day) between two date */
public int diff(GanttCalendar d) {
int res = 0;
GanttCalendar d1;
GanttCalendar d2;
if (this.compareTo(d) == 0)
return res;
else if (compareTo(d) < 0) {
d1 = this.Clone();
d2 = new GanttCalendar(d);
} else {
d1 = new GanttCalendar(d);
d2 = this.Clone();
}
while (d1.compareTo(d2) != 0) {
d1.add(1);
res++;
}
return res;
}
/** Return the string of the month. */
public String getdayMonth() {
return language.getMonth(getMonth());
}
/** Return the string of the day. */
public String getdayWeek() {
return language.getDay(this.get(Calendar.DAY_OF_WEEK) - 1);
}
/** Return the number of day on the month */
public int getNumberOfDay() {
return this.getActualMaximum(Calendar.DATE);
}
/**
* This function returns the signal represented by an int
*/
private int module(int number) {
if (number > 0)
return 1;
else if (number < 0)
return -1;
else
return 0;
}
/**
* This function compare two date
*
* @return 0 If the two date are equals
* @return -1 if the date is before when
* @return 1 if the date is after when
*/
public int compareTo(GanttCalendar when) {
int[] comparissons = { Calendar.YEAR, Calendar.MONTH, Calendar.DATE };
for (int i = 0; i < comparissons.length; i++) {
switch (module(this.get(comparissons[i])
- when.get(comparissons[i]))) {
case -1:
return -1;
case 1:
return 1;
default:
break;
}
}
return 0;
}
/** Is the date equals to when */
public boolean equals(GanttCalendar when) {
return getYear() == when.getYear() && getMonth() == when.getMonth()
&& getDay() == when.getDay();
}
/** Change date to next month. */
public void goNextMonth() {
this.add(Calendar.MONTH, 1);
}
/** Change date to previous month. */
public void goPrevMonth() {
this.add(Calendar.MONTH, -1);
}
/** Change the value of a filed */
public void go(int field, int value) {
this.add(field, value);
}
/** Return the actually date */
public static String getDateAndTime() {
GanttCalendar c = new GanttCalendar();
return c.toString() + " - " + GanttLanguage.getInstance().formatTime(c);
}
public int compareTo(Calendar o) {
return compareTo((GanttCalendar) o);
}
public static Comparator COMPARATOR = new Comparator() {
public int compare(Object o1, Object o2) {
assert o1 instanceof GanttCalendar && o2 instanceof GanttCalendar;
return ((GanttCalendar)o1).compareTo((GanttCalendar) o2);
}
};
}
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