author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 12 Mar 2010 15:42:35 +0200 | |
branch | RCL_3 |
changeset 10 | 38571fd2a704 |
permissions | -rw-r--r-- |
10
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// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// Implementation of the TChineseCalendar class. |
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// |
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#include "chinesecalendar.h" |
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#include "arithmeticaldate.h" |
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#include "gregoriancalendar.h" |
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#if defined(_DEBUG) |
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_LIT(KCalconPanic,"Calcon"); |
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#endif |
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const TUint KMonthInvalid=0; |
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const TUint K29DayMonth=1; |
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const TUint K30DayMonth=2; |
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const TUint K29DayLeapMonth=3; |
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const TUint K30DayLeapMonth=4; |
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const TUint KMonthMask=1<<15; |
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const TUint KLeapMonthShift=28; |
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const TInt KNoOfYearsInCycle = 60; |
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enum TCalconPanic |
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{ |
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ECalconChineseFromFixedMonthInvalid=0, |
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ECalconChineseToFixedLeapYearInvalid, |
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ECalconGetDataYearOutOfRange, |
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ECalconGetDataMonthOutOfRange, |
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ECalconGetNewYearYearOutOfRange |
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}; |
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TUint TCalconData::GetData(TInt aCycle, TInt aYear, TInt aMonth) const |
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{ |
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__ASSERT_DEBUG((aYear>=0 && aYear<=59), User::Panic(_L("Calcon"), ECalconGetDataYearOutOfRange)); //year range is 0..59 |
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__ASSERT_DEBUG((aMonth>=0 && aMonth<=12), User::Panic(_L("Calcon"), ECalconGetDataMonthOutOfRange));//month range is 0..12 |
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TInt y=(aCycle*KNoOfYearsInCycle)+aYear; |
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y-=(KFirstYear-1); //there are KFirstYear-1 entries missing from the head of the table |
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TUint16 x=iCalConDataMonth[y]; |
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TUint mask=KMonthMask>>aMonth; |
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TInt flag=K29DayMonth; |
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if (x & mask) |
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flag=K30DayMonth; |
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TUint leapMonth=iCalConDataYear[y]>>KLeapMonthShift; |
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leapMonth--; |
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if ((TUint)aMonth==leapMonth) |
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flag+=2; //--> K29/30DayLeapMonth |
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if ((aMonth==12) && (leapMonth==0)) |
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flag=KMonthInvalid;//month doesn't exist |
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return flag; |
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} |
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TUint TCalconData::GetNewYear(TInt aCycle, TInt aYear) const |
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{ |
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__ASSERT_DEBUG((aYear>=0 && aYear<=59), User::Panic(_L("Calcon"), ECalconGetNewYearYearOutOfRange)); |
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TInt y=(aCycle*KNoOfYearsInCycle)+aYear; |
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y-=(KFirstYear-1); |
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return (iCalConDataYear[y] & 0x0fffffff); |
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} |
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//------------------------------------------------------ |
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// Class: TChineseCalendar |
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// Function: ChineseToDateTime |
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// Arguments: TDateTime & |
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// |
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// Comments: This function converts the date held within |
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// the TChineseCalendar class to a TDateTime format and |
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// places it in the TDateTime class provided. |
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// |
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// Return: void |
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//------------------------------------------------------ |
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void TChineseCalendar::ChineseToDateTime(TDateTime &aDT) |
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{ |
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TArithmeticalDate gregDate; |
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TGregorianCalendar greg(iJulianDay); |
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greg.GregFromJulianDay(gregDate,iJulianDay); |
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aDT.Set(0,EJanuary,0,0,0,0,0); |
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aDT.SetDay(gregDate.iDay - KCalConvMonthOffsetByOne); |
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aDT.SetMonth((TMonth)(gregDate.iMonth - KCalConvMonthOffsetByOne)); |
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aDT.SetYear(gregDate.iYear); |
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} |
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//------------------------------------------------------ |
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105 |
// Class: TChineseCalendar |
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106 |
// Function: DateTimeToChinese |
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107 |
// Arguments: TDateTime & |
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108 |
// |
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109 |
// Comments: Sets the date held in the given TDateTime |
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// class to the TChineseCalendar class |
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111 |
// |
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112 |
// Return: void |
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113 |
//------------------------------------------------------ |
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void TChineseCalendar::DateTimeToChinese(const TDateTime &aDT) |
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115 |
{ |
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TArithmeticalDate gregDate; |
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TGregorianCalendar greg; |
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118 |
|
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gregDate.iDay = aDT.Day() + KCalConvMonthOffsetByOne; |
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gregDate.iMonth = (TInt)aDT.Month() + KCalConvMonthOffsetByOne; |
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gregDate.iYear = aDT.Year(); |
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122 |
|
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iJulianDay = greg.GregToJulianDay(gregDate); |
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124 |
} |
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125 |
|
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126 |
//------------------------------------------------------ |
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127 |
// Class: TChineseCalendar |
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128 |
// Function: SetDate |
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// Arguments: TChineseDate& |
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130 |
// |
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131 |
// Comments: this function sets the julian day value |
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// in the base class from the given |
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// TChineseDate |
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134 |
// |
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135 |
// Return: None |
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136 |
//------------------------------------------------------ |
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TInt TChineseCalendar::SetDate(const TChineseDate &aDate) |
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138 |
{ |
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139 |
TReal jD; |
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TChineseDate ChinDate = aDate; |
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141 |
|
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if(!ValidDate(ChinDate)) |
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return KErrArgument; |
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144 |
|
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if (!ChineseToFixed(aDate,jD)) |
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return KErrArgument; |
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147 |
|
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if (jD<KFirstJulianDate || jD>KLastJulianDate) |
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return KErrArgument; |
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150 |
|
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iJulianDay = (TInt)jD; |
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return KErrNone; |
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153 |
} |
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154 |
//------------------------------------------------------ |
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155 |
// Class: TChineseCalendar |
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156 |
// Function: GetDate |
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157 |
// Arguments: TChineseDate & |
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158 |
// |
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159 |
// Comments: This function Determines the chinese date and |
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// places it in the TChineseDate class provided |
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// for the julian day value held internally in the |
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// Chinese class. |
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163 |
// |
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164 |
// Return: None |
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165 |
//------------------------------------------------------ |
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166 |
TInt TChineseCalendar::GetDate(TChineseDate &aDate) |
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167 |
{ |
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return ChineseFromFixed(aDate,iJulianDay); |
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169 |
} |
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170 |
|
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171 |
//------------------------------------------------------ |
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172 |
// Class: TChineseCalendar |
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173 |
// Function: ChineseToFixed |
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174 |
// Arguments: TChineseDate , TReal & |
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// TChineseDate members start at 1 (not zero) |
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176 |
// |
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177 |
// Comments: This function converts a chinese date to |
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// to a julian day value. |
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179 |
// |
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180 |
// Return: TBool ETrue if date valid, else EFalse |
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181 |
//------------------------------------------------------ |
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182 |
TBool TChineseCalendar::ChineseToFixed(const TChineseDate& aDate, TReal &aJulianDay) const |
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183 |
{ |
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184 |
TInt cycle=aDate.iCycle-KFirstCycle; //cycle starts from zero |
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TInt year=aDate.iYear-1; //year is 0..59 |
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186 |
|
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187 |
TInt days=0; |
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188 |
|
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189 |
TInt targetMonth=aDate.iMonth; //targetMonth is 1..12 |
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190 |
TBool leap=aDate.iLeapMonth; |
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191 |
if (leap) |
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192 |
{ |
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193 |
targetMonth++; |
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194 |
if (iData.GetData(cycle, year, targetMonth-1)<3) |
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195 |
return EFalse; //not a leap month |
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196 |
} |
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197 |
|
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198 |
TInt month=1; |
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199 |
while (month<=targetMonth) |
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200 |
{ |
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201 |
TInt daysFlag=iData.GetData(cycle, year, month-1); |
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202 |
|
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203 |
//We need to handle case where targetMonth is a leap month |
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204 |
//Eg if Chinese month==6 targetMonth will be 6 |
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205 |
//Eg but if Chinese month 5 is a leap month, month 6 will be 5(leap) so we need to take it into account |
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206 |
//BUT Eg if Chinese momth== 7(leap) we've already taken this into account. |
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207 |
if (month==targetMonth) |
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208 |
if ((leap) || (daysFlag<3)) |
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209 |
break; |
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210 |
|
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211 |
switch (daysFlag) |
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Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
212 |
{ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
213 |
case KMonthInvalid: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
214 |
return EFalse; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
215 |
case K29DayMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
216 |
days+=29; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
217 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
218 |
case K30DayMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
219 |
days+=30; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
220 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
221 |
case K29DayLeapMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
222 |
__ASSERT_DEBUG(!leap, User::Panic(KCalconPanic,ECalconChineseToFixedLeapYearInvalid)); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
223 |
leap=ETrue; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
224 |
targetMonth++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
225 |
days+=29; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
226 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
227 |
case K30DayLeapMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
228 |
__ASSERT_DEBUG(!leap, User::Panic(KCalconPanic,ECalconChineseToFixedLeapYearInvalid)); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
229 |
leap=ETrue; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
230 |
targetMonth++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
231 |
days+=30; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
232 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
233 |
} |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
234 |
month++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
235 |
} |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
236 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
237 |
//Check that if days==30, the requested month actually has 30 days |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
238 |
TInt checkMonth = aDate.iMonth; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
239 |
if (leap) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
240 |
checkMonth++; //this is the month requested by the user |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
241 |
TUint daysFlag=iData.GetData(cycle, year, checkMonth-1); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
242 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
243 |
if ((aDate.iDay==30) && ((daysFlag==K29DayMonth) || (daysFlag==K29DayLeapMonth))) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
244 |
return EFalse; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
245 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
246 |
days+=aDate.iDay-1; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
247 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
248 |
days+=iData.GetNewYear(cycle, year);//add the New Year |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
249 |
aJulianDay=days; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
250 |
return ETrue; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
251 |
} |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
252 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
253 |
//------------------------------------------------------ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
254 |
// Class: TChineseCalendar |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
255 |
// Function: ChineseFromFixed |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
256 |
// Arguments: TChineseDate &, TReal |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
257 |
// |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
258 |
// Comments: this function converts a julian day value to |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
259 |
// a chinese date in the form TChineseDate |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
260 |
// |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
261 |
// Return: None |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
262 |
//------------------------------------------------------ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
263 |
TInt TChineseCalendar::ChineseFromFixed(TChineseDate &aDate, const TReal& aJulianDay) const |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
264 |
{ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
265 |
if ((aJulianDay<KFirstJulianDate) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
266 |
|| (aJulianDay>KLastJulianDate)) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
267 |
return KErrArgument; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
268 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
269 |
TInt cycleIndex=0; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
270 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
271 |
while ((cycleIndex < KLastCycle-KFirstCycle) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
272 |
&& (aJulianDay >= iData.GetNewYear(cycleIndex+1,0))) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
273 |
cycleIndex++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
274 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
275 |
aDate.iCycle=cycleIndex + KFirstCycle; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
276 |
TInt chineseNewYear; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
277 |
TInt yearCount=0; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
278 |
if (cycleIndex==0) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
279 |
yearCount=KFirstYear-1; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
280 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
281 |
while (yearCount<60 && aJulianDay >= iData.GetNewYear(cycleIndex,yearCount)) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
282 |
yearCount++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
283 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
284 |
aDate.iYear=yearCount; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
285 |
chineseNewYear = iData.GetNewYear(cycleIndex,--yearCount); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
286 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
287 |
TInt addedNumberOfDays = 0; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
288 |
TInt previousAddedNumberOfDays = 0; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
289 |
TInt monthCount = 1; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
290 |
aDate.iMonth = 0; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
291 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
292 |
TInt monthNumber; // 0=No month exists, 1 = 29 day month, 2 = 30 day month, 3 = 29 day leap month, 4 = 30 day leap month |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
293 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
294 |
while (aJulianDay >= (chineseNewYear + addedNumberOfDays)) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
295 |
{ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
296 |
previousAddedNumberOfDays = addedNumberOfDays; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
297 |
monthNumber = iData.GetData(cycleIndex,yearCount,monthCount-1); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
298 |
|
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
299 |
switch (monthNumber) |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
300 |
{ |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
301 |
case KMonthInvalid: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
302 |
__ASSERT_DEBUG(0, User::Panic(_L("Calcon"),ECalconChineseFromFixedMonthInvalid)); |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
303 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
304 |
case K29DayMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
305 |
addedNumberOfDays += 29; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
306 |
aDate.iMonth++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
307 |
aDate.iLeapMonth = EFalse; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
308 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
309 |
case K30DayMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
310 |
addedNumberOfDays += 30; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
311 |
aDate.iMonth++; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
312 |
aDate.iLeapMonth = EFalse; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
313 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
314 |
case K29DayLeapMonth: |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
315 |
addedNumberOfDays += 29; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
316 |
aDate.iLeapMonth = ETrue; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
317 |
break; |
38571fd2a704
Revision: 201007
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
318 |
case K30DayLeapMonth: |
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319 |
addedNumberOfDays += 30; |
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320 |
aDate.iLeapMonth = ETrue; |
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321 |
break; |
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322 |
} |
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monthCount++; |
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324 |
} |
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325 |
|
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aDate.iDay = (TInt)aJulianDay - chineseNewYear-previousAddedNumberOfDays; |
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327 |
aDate.iDay++; |
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328 |
return KErrNone; |
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329 |
} |
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330 |
|
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331 |
//------------------------------------------------------ |
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332 |
// Class: TChineseCalendar |
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333 |
// Function: ValidDate |
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334 |
// Arguments: TChineseDate & |
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335 |
// |
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336 |
// Comments: This function Determines whether the given |
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// date is a valid chinese date |
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338 |
// |
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// Return: TBool - ETrue if date is valid, else EFalse |
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340 |
//------------------------------------------------------ |
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341 |
TBool TChineseCalendar::ValidDate(const TChineseDate &aDate) const |
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342 |
{ |
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//do some trivial checks to ensure that the date is in the range of the lookup table |
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344 |
if (aDate.iYear==0 || aDate.iYear>KNoOfYearsInCycle) |
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345 |
return EFalse; |
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346 |
|
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347 |
if (aDate.iCycle < KFirstCycle) |
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348 |
return EFalse; |
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349 |
|
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350 |
if (aDate.iCycle==KFirstCycle && aDate.iYear < KFirstYear) |
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351 |
return EFalse; |
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352 |
|
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353 |
if (aDate.iCycle > KLastCycle) |
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354 |
return EFalse; |
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|
355 |
|
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356 |
if ( (aDate.iCycle==KLastCycle) && (aDate.iYear>KLastYear)) |
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357 |
return EFalse; |
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|
358 |
|
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359 |
if (aDate.iDay==0 || aDate.iDay>30) |
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360 |
return EFalse; |
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|
361 |
|
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362 |
return ETrue; |
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363 |
} |
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|
364 |
|
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365 |
TReal TChineseCalendar::JulianDate() __SOFTFP |
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366 |
{ |
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367 |
return iJulianDay; |
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368 |
} |