/* GanttProject is an opensource project management tool. Copyright (C) 2002-2011 Thomas Alexandre, GanttProject Team 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 3 of the License, or (at your option) any later version. This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package biz.ganttproject.core.time; import java.util.Calendar; import java.util.Comparator; import java.util.Date; import biz.ganttproject.core.time.CalendarFactory.LocaleApi; import biz.ganttproject.core.time.impl.GPTimeUnitStack; import org.w3c.util.DateParser; import org.w3c.util.InvalidDateException; /** * Class use for calendar */ public class GanttCalendar extends java.util.GregorianCalendar { private final LocaleApi myLocaleApi; private GanttCalendar myShiftedValue; GanttCalendar(CalendarFactory.LocaleApi localeApi) { super(); set(Calendar.HOUR_OF_DAY, 0); set(Calendar.MINUTE, 0); set(Calendar.SECOND, 0); set(Calendar.MILLISECOND, 0); myLocaleApi = localeApi; } GanttCalendar(int year, int month, int date, CalendarFactory.LocaleApi localeApi) { super(year, month, date); myLocaleApi = localeApi; } GanttCalendar(Date date, CalendarFactory.LocaleApi localeApi) { super(); myLocaleApi = localeApi; setTime(date); } public static GanttCalendar parseXMLDate(String s) { GanttCalendar result = CalendarFactory.createGanttCalendar(); result.clear(); try { Date date = DateParser.parse(s); result.setTime(date); } catch (InvalidDateException e) { // Get "/" characters int fb = s.indexOf('/'); int sb = s.indexOf('/', fb + 1); // Get all fields 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, Integer.parseInt(y)); result.set(Calendar.MONTH, Integer.parseInt(m) - 1); result.set(Calendar.DATE, Integer.parseInt(d)); } return result; } /** @return a copy of the current date */ @Override public GanttCalendar clone() { GanttCalendar clone = CalendarFactory.createGanttCalendar(getYear(), getMonth(), getDay()); return clone; } public String toXMLString() { return DateParser.getIsoDateNoHours(getTime()); } @Override public String toString() { return myLocaleApi.getShortDateFormat().format(getTime()); } public int getYear() { return this.get(Calendar.YEAR); } public int getMonth() { return this.get(Calendar.MONTH); } public int getDate() { return this.get(Calendar.DATE); } public int getDay() { return this.get(Calendar.DAY_OF_MONTH); } /** @return the sign represented by an integer */ private int module(int number) { if (number > 0) { return 1; } else if (number < 0) { return -1; } else { return 0; } } final static private int[] comparissons = { Calendar.YEAR, Calendar.MONTH, Calendar.DATE }; /** * This function compares the calendar date with the given date * * @return 0 If the two date are equals<br/> * -1 if the date is before 'when'<br/> * 1 if the date is after 'when' */ public int compareTo(GanttCalendar when) { for (int comparisson : comparissons) { switch (module(this.get(comparisson) - when.get(comparisson))) { case -1: return -1; case 1: return 1; } } return 0; } /** @return true if the calendar date equals to 'when' */ public boolean equals(GanttCalendar when) { return getYear() == when.getYear() && getMonth() == when.getMonth() && getDay() == when.getDay(); } // /** @return the actually date */ // public static String getDateAndTime() { // GanttCalendar c = new GanttCalendar(); // return c.toString() + " - " + GanttLanguage.getInstance().formatTime(c); // } public static Comparator<GanttCalendar> COMPARATOR = new Comparator<GanttCalendar>() { @Override public int compare(GanttCalendar o1, GanttCalendar o2) { return o1.compareTo(o2); } }; public GanttCalendar getDisplayValue() { if (myShiftedValue == null) { myShiftedValue = CalendarFactory.createGanttCalendar(GPTimeUnitStack.DAY.jumpLeft(getTime())); } return myShiftedValue; } }