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1 // Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // |
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15 |
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16 #ifndef __CALCONV_H__ |
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17 #define __CALCONV_H__ |
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18 |
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19 // User includes |
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20 #include "calconvAstronomicalCal.h" |
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21 #include "calconvArithmeticalCal.h" |
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22 |
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23 // Constants |
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24 const TInt KCalConInvalidDate = -50000; // invalid date error code |
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25 |
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26 // Classes referenced |
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27 class TChineseDate; |
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28 class TArithmeticalDate; |
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29 |
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30 |
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31 class TChineseCalendar : public TAstronomicalCalendar |
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32 { |
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33 public: |
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34 IMPORT_C TChineseCalendar(); |
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35 IMPORT_C void DateTimeToChinese(const TDateTime& aDT); |
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36 IMPORT_C void ChineseToDateTime(TDateTime& aDT); |
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37 IMPORT_C TInt SetDate(const TChineseDate& aDate); |
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38 IMPORT_C void GetDate(TChineseDate& aDate); |
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39 |
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40 private: |
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41 void ChineseToFixed(const TChineseDate& aDate, TReal& aJulianDay) const; |
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42 void ChineseFromFixed(TChineseDate& aDate,const TReal& aJulianDay) const; |
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43 TReal ChineseNewYear(TInt aYear) const; |
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44 TBool NoMajorSolarTerm(TReal aJulianDay) const; |
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45 TBool PriorLeapMonth(TReal& aMnthprime, TReal aMnth) const; |
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46 TInt ChineseNewMoonOnOrAfter(TReal aJulianDay) const; |
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47 TInt ChineseNewMoonBefore(TReal aJulianDay) const; |
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48 TReal MajorSolarTermOnOrAfter(TReal& aJulianDay) const; |
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49 TInt ChineseDateNextSolarLongitude(TReal& aJulianDay, const TReal& aDegrees) const; |
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50 TReal ChineseTimeZone(const TReal& aJulianDay) const; |
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51 TReal CurrentMajorSolarTerm(TReal& aJulianDay) const; |
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52 TBool ValidDate(const TChineseDate& aDate) const; |
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53 }; |
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54 |
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55 class TGregorianCalendar : public TArithmeticalCalendar |
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56 { |
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57 public: |
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58 IMPORT_C TGregorianCalendar(); |
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59 IMPORT_C TGregorianCalendar(TReal aJulianDay); |
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60 IMPORT_C void GregorianToDateTime(TDateTime& aDT); |
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61 IMPORT_C void DateTimeToGregorian(TDateTime& aDT); |
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62 IMPORT_C void GetDate(TArithmeticalDate& aDate); |
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63 IMPORT_C TInt SetDate(TArithmeticalDate& aGregDate); |
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64 |
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65 private: |
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66 void GregFromJulianDay(TArithmeticalDate& aDate, TReal aJulianDay) const; |
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67 void InitMembers(); |
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68 TInt DayNumber(const TArithmeticalDate& aDate) const; |
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69 void CalcGregYear(TArithmeticalDate& aDate, TReal aJulianDay) const; |
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70 TBool IsLeapYear(const TInt aYear) const; |
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71 TReal GregToJulianDay(const TArithmeticalDate& aYear) const; |
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72 TInt GregDateDiff(const TArithmeticalDate aDate1, const TArithmeticalDate aDate2) const; |
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73 TBool ValidDate(const TArithmeticalDate& aDate) const; |
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74 |
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75 private: |
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76 friend class TAstronomicalCalendar; |
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77 friend class TChineseCalendar; |
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78 }; |
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79 |
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80 class TChineseDate |
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81 { |
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82 public: |
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83 IMPORT_C TChineseDate(); |
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84 IMPORT_C TBool operator==(const TChineseDate& aDate) const; |
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85 |
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86 public: |
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87 TInt iCycle; |
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88 TInt iYear; |
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89 TInt iMonth; |
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90 TBool iLeapMonth; |
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91 TInt iDay; |
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92 }; |
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93 |
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94 class TArithmeticalDate |
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95 { |
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96 public: |
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97 IMPORT_C TArithmeticalDate(); |
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98 IMPORT_C TBool operator==(const TArithmeticalDate& aDate) const; |
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99 |
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100 public: |
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101 TInt iDay; |
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102 TInt iMonth; |
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103 TInt iYear; |
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104 }; |
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105 |
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106 |
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107 #endif |