1 files changed, 87 insertions, 0 deletions
diff --git a/core/pim/datebook/holiday/christian/chrisholiday.cpp b/core/pim/datebook/holiday/christian/chrisholiday.cpp
new file mode 100644
index 0000000..6ef102a
--- a/dev/null
+++ b/core/pim/datebook/holiday/christian/chrisholiday.cpp
@@ -0,0 +1,87 @@
+#include "chrisholiday.h"
+
+#include <qobject.h>
+
+QString ChrisHoliday::description()
+{
+    return QObject::tr("Christian holidays","holidays");
+}
+
+QStringList ChrisHoliday::entries(const QDate&aDate)
+{
+    QStringList ret;
+    ret+=_internallist.entries(aDate);
+    calcit(aDate.year());
+    tDayMap::Iterator it = _days.find(aDate);
+    if (it!=_days.end()) {
+        ret+=*it;
+    }
+
+    return ret;
+}
+
+QStringList ChrisHoliday::entries(unsigned year, unsigned month, unsigned day)
+{
+    return entries(QDate(year,month,day));
+}
+
+void ChrisHoliday::calcit(int year)
+{
+    if (year==_lastyear) return;
+    _lastyear = year;
+    _days.clear();
+    calc_easter();
+    calc_christmas();
+}
+
+void ChrisHoliday::calc_christmas()
+{
+    QDate cday(_lastyear,12,24);
+    int diff;
+    if ( (diff=cday.dayOfWeek())!=7) {
+        cday=cday.addDays(-diff);
+        _days[cday].append(QObject::tr("4. Advent","holidays"));
+    }
+    _days[cday.addDays(-7)].append(QObject::tr("3. Advent","holidays"));
+    _days[cday.addDays(-14)].append(QObject::tr("2. Advent","holidays"));
+    _days[cday.addDays(-21)].append(QObject::tr("1. Advent","holidays"));
+}
+
+void ChrisHoliday::calc_easter()
+{
+  unsigned long n = 0;
+  unsigned long p = 0;
+
+  if ( _lastyear > 1582 ) {
+    unsigned long a = _lastyear%19;
+    unsigned long b = _lastyear/100;
+    unsigned long c = _lastyear%100;
+    unsigned long d = b/4;
+    unsigned long e = b%4;
+    unsigned long f = (b+8)/25;
+    unsigned long g = (b+f+1)/3;
+    unsigned long h = (19*a+b-d-g+15)%30;
+    unsigned long i = c/4;
+    unsigned long j = c%4;
+    unsigned long k = j%100;
+    unsigned long l = (32+2*e+2*i-h-k)%7;
+    unsigned long m = (a+11*h+22*l)/451;
+    n = (h+l-7*m+114)/31;
+    p = (h+l-7*m+114)%31;
+  } else {
+    unsigned long a = _lastyear%4;
+    unsigned long b = _lastyear%7;
+    unsigned long c = _lastyear%19;
+    unsigned long d = (19*c+15)%30;
+    unsigned long e = (2*a+4*b-d+34)%7;
+    n = (d+e+114)/31;
+    p = (d+e+114)%31;
+  }
+  p++;
+  QDate d(_lastyear,n,p);
+  _days[d].append(QObject::tr("Eastersunday","holidays"));
+  _days[d.addDays(49)].append(QObject::tr("Whitsunday","holidays"));
+  _days[d.addDays(50)].append(QObject::tr("Whitmonday","holidays"));
+  _days[d.addDays(-46)].append(QObject::tr("Ash Wednesday","holidays"));
+  _days[d.addDays(60)].append(QObject::tr("Corpus Christi","holidays"));
+}