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1 // Copyright (c) 1997-2009 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 __TIMEZONERULES_H__ |
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17 #define __TIMEZONERULES_H__ |
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18 |
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19 #include <e32base.h> |
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20 #include <s32std.h> |
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21 #include <tzdefines.h> |
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22 #include "tzpersisted.h" |
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23 |
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24 const TInt KActualisedRulesGranularity = 8; |
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25 |
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26 // specifies the limits for rules caching. |
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27 // (year - KRuleCacheLowerLimit) , (year + KRuleCacheUpperLimit) |
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28 // the actual cache includes one more year at year - (KRuleCacheLowerLimit + 1) |
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29 // required to provide the offset used at the start of the search |
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30 const TUint KRuleCacheLowerLimit = 2; |
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31 const TUint KRuleCacheUpperLimit = 3; |
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32 |
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33 /** |
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34 Encapsulates a single Time Zone DST Rule |
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35 |
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36 @internalComponent |
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37 @since 9.1 |
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38 */ |
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39 class TTzActualisedRule |
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40 { |
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41 public: |
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42 inline TTzActualisedRule(const TTime& aTimeOfChange, TInt aStdOffset, TInt aDstOffset, TTzTimeReference aTimeReference); |
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43 inline TTzActualisedRule(); |
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44 IMPORT_C void InternalizeL(RReadStream& aStream); |
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45 IMPORT_C void ExternalizeL(RWriteStream& aStream) const; |
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46 |
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47 static TInt Order(const TTzActualisedRule& aLeft, const TTzActualisedRule& aRight); |
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48 |
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49 public: |
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50 /** time of DST change w.r.t to iTimeReference |
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51 */ |
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52 TTime iTimeOfChange; |
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53 /** std to UTC offset |
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54 */ |
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55 TInt32 iStdOffset; |
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56 |
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57 /** wall-clock to standard time offset |
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58 */ |
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59 TInt32 iDstOffset; |
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60 |
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61 /** what time recogning iTimeOfChange is referenced to; see <code> TTzTimeReference </code> |
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62 */ |
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63 TTzTimeReference iTimeReference; |
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64 }; |
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65 |
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66 inline TTzActualisedRule::TTzActualisedRule(const TTime& aTimeOfChange, TInt aStdOffset, TInt aDstOffset, TTzTimeReference aTimeReference) : |
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67 iTimeOfChange(aTimeOfChange), |
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68 iStdOffset(aStdOffset), |
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69 iDstOffset(aDstOffset), |
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70 iTimeReference(aTimeReference) |
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71 { |
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72 } |
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73 |
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74 inline TTzActualisedRule::TTzActualisedRule() : |
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75 iTimeOfChange(0), |
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76 iStdOffset(0), |
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77 iDstOffset(0), |
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78 iTimeReference(ETzUtcTimeReference) |
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79 { |
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80 } |
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81 |
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82 #endif |
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83 |
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84 |