converter.h
1/***************************************************************************
2 * Copyright (C) 2003 by Jonathan Singer *
3 * jsinger@leeta.net *
4 * Calendar routines from Hebrew Calendar by Frank Yellin *
5 * *
6 * This program is free software; you can redistribute it and/or modify *
7 * it under the terms of the GNU General Public License as published by *
8 * the Free Software Foundation; either version 2 of the License, or *
9 * (at your option) any later version. *
10 ***************************************************************************/
11#ifndef CONVERTER_H
12#define CONVERTER_H
13
14#include <tqstring.h>
15#include <tqstringlist.h>
16
17struct DateResult
18{
19 int year;
20 int month;
21 int day;
22 int day_of_week;
23
24 int hebrew_month_length, secular_month_length;
25 bool hebrew_leap_year_p, secular_leap_year_p;
26 int kvia;
27 int hebrew_day_number;
28};
29
33class Converter
34{
35public:
36
37 Converter();
38 ~Converter();
39
40 static bool hebrew_leap_year_p(int year);
41 static bool gregorian_leap_year_p(int year);
42
43 static long absolute_from_gregorian(int year, int month, int day);
44 static long absolute_from_hebrew(int year, int month, int day);
45
46 static void gregorian_from_absolute(long date, int *yearp,
47 int *monthp, int *dayp);
48 static void hebrew_from_absolute(long date, int *yearp, int *monthp,
49 int *dayp);
50
51 static int hebrew_months_in_year(int year);
52 static int hebrew_month_length(int year, int month);
53 static int secular_month_length(int year, int month);
54
55 static long hebrew_elapsed_days(int year);
56 static long hebrew_elapsed_days2(int year);
57 static int hebrew_year_length(int year);
58
59 static void finish_up(long absolute, int hyear, int hmonth,
60 int syear, int smonth,
61 struct DateResult *result);
62
63 static void SecularToHebrewConversion(int year, int month, int day,
64 struct DateResult *result);
65 static void HebrewToSecularConversion(int year, int month, int day,
66 struct DateResult *result);
67
68private:
69
70 static TQStringList HebrewMonthNames;
71 static TQStringList SecularMonthNames;
72
73};
74
75#endif