Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 307 insertions, 0 deletions

diff --git a/i18npool/source/calendar/calendar_jewish.cxx b/i18npool/source/calendar/calendar_jewish.cxx
new file mode 100644
index 000000000..ab5a32a22
--- /dev/null
+++ b/i18npool/source/calendar/calendar_jewish.cxx
@@ -0,0 +1,307 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you 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 .
+ */
+
+
+#include <calendar_jewish.hxx>
+#include <nativenumbersupplier.hxx>
+
+#include <com/sun/star/i18n/CalendarDisplayCode.hpp>
+#include <com/sun/star/i18n/NativeNumberMode.hpp>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::i18n;
+using namespace ::com::sun::star::lang;
+
+namespace i18npool {
+
+// not used
+//static UErrorCode status; // status is shared in all calls to Calendar, it has to be reset for each call.
+
+Calendar_jewish::Calendar_jewish()
+{
+    cCalendar = "com.sun.star.i18n.Calendar_jewish";
+}
+
+// The following C++ code is translated from the Lisp code in
+// ``Calendrical Calculations'' by Nachum Dershowitz and Edward M. Reingold,
+// Software---Practice & Experience, vol. 20, no. 9 (September, 1990),
+// pp. 899--928.
+
+// This code is in the public domain, but any use of it
+// should acknowledge its source.
+// https://web.archive.org/web/20010222054702/http://www.ntu.edu.sg/home/ayxyan/date1.txt
+
+// Hebrew dates
+
+const int HebrewEpoch = -1373429; // Absolute date of start of Hebrew calendar
+
+// True if year is an Hebrew leap year
+static bool HebrewLeapYear(sal_Int32 year) {
+    return ((((7 * year) + 1) % 19) < 7);
+}
+
+// Last month of Hebrew year.
+static sal_Int32 LastMonthOfHebrewYear(sal_Int32 year) {
+    return  (HebrewLeapYear(year)) ? 13 : 12;
+}
+
+// Number of days elapsed from the Sunday prior to the start of the
+// Hebrew calendar to the mean conjunction of Tishri of Hebrew year.
+static sal_Int32 HebrewCalendarElapsedDays(sal_Int32 year) {
+    sal_Int32 MonthsElapsed =
+        (235 * ((year - 1) / 19))           // Months in complete cycles so far.
+        + (12 * ((year - 1) % 19))          // Regular months in this cycle.
+        + (7 * ((year - 1) % 19) + 1) / 19; // Leap months this cycle
+    sal_Int32 PartsElapsed = 204 + 793 * (MonthsElapsed % 1080);
+    int HoursElapsed =
+        5 + 12 * MonthsElapsed + 793 * (MonthsElapsed  / 1080)
+        + PartsElapsed / 1080;
+    sal_Int32 ConjunctionDay = 1 + 29 * MonthsElapsed + HoursElapsed / 24;
+    sal_Int32 ConjunctionParts = 1080 * (HoursElapsed % 24) + PartsElapsed % 1080;
+    sal_Int32 AlternativeDay;
+
+    if ((ConjunctionParts >= 19440)        // If new moon is at or after midday,
+          || (((ConjunctionDay % 7) == 2)    // ...or is on a Tuesday...
+          && (ConjunctionParts >= 9924)  // at 9 hours, 204 parts or later...
+          && !(HebrewLeapYear(year)))   // ...of a common year,
+          || (((ConjunctionDay % 7) == 1)    // ...or is on a Monday at...
+          && (ConjunctionParts >= 16789) // 15 hours, 589 parts or later...
+          && (HebrewLeapYear(year - 1))))// at the end of a leap year
+        // Then postpone Rosh HaShanah one day
+        AlternativeDay = ConjunctionDay + 1;
+    else
+        AlternativeDay = ConjunctionDay;
+
+    if (((AlternativeDay % 7) == 0)// If Rosh HaShanah would occur on Sunday,
+          || ((AlternativeDay % 7) == 3)     // or Wednesday,
+          || ((AlternativeDay % 7) == 5))    // or Friday
+        // Then postpone it one (more) day
+        return (1+ AlternativeDay);
+    else
+        return AlternativeDay;
+}
+
+// Number of days in Hebrew year.
+static sal_Int32 DaysInHebrewYear(sal_Int32 year) {
+    return ((HebrewCalendarElapsedDays(year + 1)) -
+          (HebrewCalendarElapsedDays(year)));
+}
+
+// True if Heshvan is long in Hebrew year.
+static bool LongHeshvan(sal_Int32 year) {
+    return ((DaysInHebrewYear(year) % 10) == 5);
+}
+
+// True if Kislev is short in Hebrew year.
+static bool ShortKislev(sal_Int32 year) {
+    return ((DaysInHebrewYear(year) % 10) == 3);
+}
+
+// Last day of month in Hebrew year.
+static sal_Int32 LastDayOfHebrewMonth(sal_Int32 month, sal_Int32 year) {
+    if ((month == 2)
+        || (month == 4)
+        || (month == 6)
+        || ((month == 8) && !(LongHeshvan(year)))
+        || ((month == 9) && ShortKislev(year))
+        || (month == 10)
+        || ((month == 12) && !(HebrewLeapYear(year)))
+        || (month == 13))
+        return 29;
+    else
+        return 30;
+}
+
+namespace {
+
+class HebrewDate {
+private:
+    sal_Int32 year;   // 1...
+    sal_Int32 month;  // 1..LastMonthOfHebrewYear(year)
+    sal_Int32 day;    // 1..LastDayOfHebrewMonth(month, year)
+
+public:
+    HebrewDate(sal_Int32 m, sal_Int32 d, sal_Int32 y) : year(y), month(m), day(d) { }
+
+    explicit HebrewDate(sal_Int32 d) { // Computes the Hebrew date from the absolute date.
+    year = (d + HebrewEpoch) / 366; // Approximation from below.
+    // Search forward for year from the approximation.
+    while (d >= HebrewDate(7,1,year + 1).GetAbsoluteDate())
+      year++;
+    // Search forward for month from either Tishri or Nisan.
+    if (d < HebrewDate(1, 1, year).GetAbsoluteDate())
+      month = 7;  //  Start at Tishri
+    else
+      month = 1;  //  Start at Nisan
+    while (d > HebrewDate(month, (LastDayOfHebrewMonth(month,year)), year).GetAbsoluteDate())
+      month++;
+    // Calculate the day by subtraction.
+    day = d - HebrewDate(month, 1, year).GetAbsoluteDate() + 1;
+    }
+
+    int GetAbsoluteDate() const { // Computes the absolute date of Hebrew date.
+    sal_Int32 DayInYear = day; // Days so far this month.
+    if (month < 7) { // Before Tishri, so add days in prior months
+             // this year before and after Nisan.
+      sal_Int32 m = 7;
+      while (m <= (LastMonthOfHebrewYear(year))) {
+        DayInYear = DayInYear + LastDayOfHebrewMonth(m, year);
+        m++;
+      };
+      m = 1;
+      while (m < month) {
+        DayInYear = DayInYear + LastDayOfHebrewMonth(m, year);
+        m++;
+      }
+    }
+    else { // Add days in prior months this year
+      sal_Int32 m = 7;
+      while (m < month) {
+        DayInYear = DayInYear + LastDayOfHebrewMonth(m, year);
+        m++;
+      }
+    }
+    return (DayInYear +
+        (HebrewCalendarElapsedDays(year)// Days in prior years.
+         + HebrewEpoch));         // Days elapsed before absolute date 1.
+    }
+
+    sal_Int32 GetMonth() const { return month; }
+    sal_Int32 GetDay() const { return day; }
+    sal_Int32 GetYear() const { return year; }
+
+};
+
+}
+
+//  Gregorian dates
+
+static int LastDayOfGregorianMonth(int month, int year) {
+// Compute the last date of the month for the Gregorian calendar.
+
+    switch (month) {
+    case 2:
+    if ((((year % 4) == 0) && ((year % 100) != 0))
+        || ((year % 400) == 0))
+      return 29;
+    else
+      return 28;
+    case 4:
+    case 6:
+    case 9:
+    case 11: return 30;
+    default: return 31;
+    }
+}
+
+namespace {
+
+class GregorianDate {
+private:
+    int year;   // 1...
+    int month;  // 1 == January, ..., 12 == December
+    int day;    // 1..LastDayOfGregorianMonth(month, year)
+
+public:
+    GregorianDate(int m, int d, int y) { month = m; day = d; year = y; }
+
+    explicit GregorianDate(int d) { // Computes the Gregorian date from the absolute date.
+        // Search forward year by year from approximate year
+        year = d/366;
+        while (d >= GregorianDate(1,1,year+1).GetAbsoluteDate())
+          year++;
+        // Search forward month by month from January
+        month = 1;
+        while (d > GregorianDate(month, LastDayOfGregorianMonth(month,year), year).GetAbsoluteDate())
+          month++;
+        day = d - GregorianDate(month,1,year).GetAbsoluteDate() + 1;
+    }
+
+    int GetAbsoluteDate() const { // Computes the absolute date from the Gregorian date.
+        int N = day;           // days this month
+        for (int m = month - 1;  m > 0; m--) // days in prior months this year
+          N = N + LastDayOfGregorianMonth(m, year);
+        return
+          (N                    // days this year
+           + 365 * (year - 1)   // days in previous years ignoring leap days
+           + (year - 1)/4       // Julian leap days before this year...
+           - (year - 1)/100     // ...minus prior century years...
+           + (year - 1)/400);   // ...plus prior years divisible by 400
+    }
+
+    int GetMonth() const { return month; }
+    int GetDay() const { return day; }
+    int GetYear() const { return year; }
+
+};
+
+}
+
+// map field value from gregorian calendar to other calendar, it can be overwritten by derived class.
+void Calendar_jewish::mapFromGregorian()
+{
+    int y = fieldValue[CalendarFieldIndex::YEAR];
+    if (fieldValue[CalendarFieldIndex::ERA] == 0)
+        y = 1 - y;
+    GregorianDate Temp(fieldValue[CalendarFieldIndex::MONTH] + 1, fieldValue[CalendarFieldIndex::DAY_OF_MONTH], y);
+    HebrewDate hd(Temp.GetAbsoluteDate());
+
+    fieldValue[CalendarFieldIndex::ERA] = hd.GetYear() <= 0 ? 0 : 1;
+    fieldValue[CalendarFieldIndex::MONTH] = sal::static_int_cast<sal_Int16>( hd.GetMonth() - 1 );
+    fieldValue[CalendarFieldIndex::DAY_OF_MONTH] = static_cast<sal_Int16>(hd.GetDay());
+    fieldValue[CalendarFieldIndex::YEAR] = static_cast<sal_Int16>(hd.GetYear() <= 0 ? 1 - hd.GetYear() : hd.GetYear());
+}
+
+#define FIELDS  ((1 << CalendarFieldIndex::ERA) | (1 << CalendarFieldIndex::YEAR) | (1 << CalendarFieldIndex::MONTH) | (1 << CalendarFieldIndex::DAY_OF_MONTH))
+// map field value from other calendar to gregorian calendar, it should be implemented.
+void Calendar_jewish::mapToGregorian()
+{
+    if (!(fieldSet & FIELDS))
+        return;
+
+    sal_Int16 y = fieldSetValue[CalendarFieldIndex::YEAR];
+    if (fieldSetValue[CalendarFieldIndex::ERA] == 0)
+        y = 1 - y;
+    HebrewDate Temp(fieldSetValue[CalendarFieldIndex::MONTH] + 1, fieldSetValue[CalendarFieldIndex::DAY_OF_MONTH], y);
+    GregorianDate gd(Temp.GetAbsoluteDate());
+
+    fieldSetValue[CalendarFieldIndex::ERA] = gd.GetYear() <= 0 ? 0 : 1;
+    fieldSetValue[CalendarFieldIndex::MONTH] = sal::static_int_cast<sal_Int16>( gd.GetMonth() - 1 );
+    fieldSetValue[CalendarFieldIndex::DAY_OF_MONTH] = static_cast<sal_Int16>(gd.GetDay());
+    fieldSetValue[CalendarFieldIndex::YEAR] = static_cast<sal_Int16>(gd.GetYear() <= 0 ? 1 - gd.GetYear() : gd.GetYear());
+    fieldSet |= FIELDS;
+}
+
+// Methods in XExtendedCalendar
+OUString SAL_CALL
+Calendar_jewish::getDisplayString( sal_Int32 nCalendarDisplayCode, sal_Int16 /*nNativeNumberMode*/ )
+{
+    const sal_Int16 nNativeNumberMode = NativeNumberMode::NATNUM2;  // make Hebrew number for Jewish calendar
+
+    if (nCalendarDisplayCode == CalendarDisplayCode::SHORT_YEAR) {
+        sal_Int32 value = getValue(CalendarFieldIndex::YEAR) % 1000; // take last 3 digits
+        return mxNatNum->getNativeNumberString(OUString::number(value), aLocale, nNativeNumberMode );
+    }
+    else
+        return Calendar_gregorian::getDisplayString(nCalendarDisplayCode, nNativeNumberMode );
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */