|
1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // |
|
15 |
|
16 |
|
17 #include <s32mem.h> |
|
18 #include <tzid.h> |
|
19 #include "tzidinternal.h" |
|
20 #include <tz.h> |
|
21 |
|
22 |
|
23 /** |
|
24 The maximum number of digits for a user-defined time zone (when it is 0x20000 - |
|
25 1). |
|
26 |
|
27 @internalComponent |
|
28 */ |
|
29 const TInt KMaxTzIdDigits = 6; |
|
30 |
|
31 |
|
32 CTzId::CTzId() |
|
33 { |
|
34 } |
|
35 |
|
36 |
|
37 CTzId::CTzId(TUint aNumericId) : |
|
38 iReferenceId(aNumericId) |
|
39 { |
|
40 } |
|
41 |
|
42 |
|
43 /** |
|
44 Time zone ID data externaliser. |
|
45 |
|
46 @param aStream A stream that will contain the serialised time zone ID. |
|
47 |
|
48 @internalComponent |
|
49 */ |
|
50 EXPORT_C void CTzId::ExternalizeL(RWriteStream& aStream) const |
|
51 { |
|
52 aStream << iReferenceId; |
|
53 TInt32 size = 0; |
|
54 if (iZoneId) |
|
55 { |
|
56 size = iZoneId->Length(); |
|
57 aStream << size; |
|
58 if (size) |
|
59 { |
|
60 aStream.WriteL(iZoneId->Des(), size); |
|
61 } |
|
62 } |
|
63 else |
|
64 { |
|
65 aStream << size; |
|
66 } |
|
67 } |
|
68 |
|
69 |
|
70 /** |
|
71 Serialised CTzId data internaliser. |
|
72 |
|
73 @param aStream a stream containing the serialised time zone Id |
|
74 |
|
75 @internalComponent |
|
76 */ |
|
77 EXPORT_C void CTzId::InternalizeL(RReadStream& aStream) |
|
78 { |
|
79 |
|
80 aStream >> iReferenceId; |
|
81 |
|
82 delete iZoneId; |
|
83 iZoneId = NULL; |
|
84 |
|
85 TInt32 size; |
|
86 aStream >> size; |
|
87 |
|
88 const TInt KMaxSize = KMaxTInt / 2; |
|
89 if (size < 0 || size >= KMaxSize) |
|
90 { |
|
91 User::Leave( KErrArgument ); |
|
92 } |
|
93 |
|
94 // Don't create the tz id if the size is 0 - it hasn't been set. |
|
95 if (size) |
|
96 { |
|
97 iZoneId = HBufC8::NewL(size); |
|
98 TPtr8 bufferPtr(iZoneId->Des() ); |
|
99 aStream.ReadL(bufferPtr, size); |
|
100 } |
|
101 } |
|
102 |
|
103 |
|
104 /** |
|
105 Destructor. |
|
106 */ |
|
107 EXPORT_C CTzId::~CTzId() |
|
108 { |
|
109 delete iZoneId; |
|
110 } |
|
111 |
|
112 |
|
113 /** |
|
114 Time zone ID factory method. |
|
115 |
|
116 @param aStream a stream containing the serialised time zone Id |
|
117 |
|
118 @leave KErrNoMemory or some other system error code |
|
119 |
|
120 @return Pointer to CTzId; clients own the object. |
|
121 |
|
122 @internalComponent |
|
123 */ |
|
124 EXPORT_C CTzId* CTzId::NewL(RReadStream& aStream) |
|
125 { |
|
126 CTzId* self = new(ELeave) CTzId(); |
|
127 CleanupStack::PushL(self); |
|
128 |
|
129 self->InternalizeL(aStream); |
|
130 |
|
131 CleanupStack::Pop(self); |
|
132 return self; |
|
133 } |
|
134 |
|
135 |
|
136 /** |
|
137 Time zone ID factory method. |
|
138 |
|
139 @param aNameIdentity A name recognised by the time zone database. |
|
140 |
|
141 @return A pointer to the time zone ID. Clients take ownership. |
|
142 */ |
|
143 EXPORT_C CTzId* CTzId::NewL(const TDesC8& aNameIdentity) |
|
144 { |
|
145 CTzId* self = new(ELeave) CTzId(); |
|
146 CleanupStack::PushL(self); |
|
147 |
|
148 self->iZoneId = aNameIdentity.AllocL(); |
|
149 |
|
150 CleanupStack::Pop(self); |
|
151 return self; |
|
152 } |
|
153 |
|
154 |
|
155 /** |
|
156 Time zone ID factory method. |
|
157 |
|
158 @param aNumericId A numeric reference ID, generated by the time zone compiler. |
|
159 |
|
160 @return A pointer to the time zone ID. Clients take ownership. |
|
161 |
|
162 @panic TzServer 8 aNumericId must not be zero. |
|
163 */ |
|
164 EXPORT_C CTzId* CTzId::NewL(TUint aNumericId) |
|
165 { |
|
166 const TUint KUnacceptableTzId = 0; |
|
167 |
|
168 // aNumericId must not be zero |
|
169 __ASSERT_ALWAYS((aNumericId != KUnacceptableTzId), RTz::Panic(RTz::EPanicUnsupportedTimeZoneNoId)); |
|
170 CTzId* self = new(ELeave) CTzId(aNumericId); |
|
171 CleanupStack::PushL(self); |
|
172 self->ConstructL(); |
|
173 CleanupStack::Pop(self); |
|
174 return self; |
|
175 } |
|
176 |
|
177 |
|
178 void CTzId::ConstructL() |
|
179 { |
|
180 if (IsUserTzId()) |
|
181 { |
|
182 TBuf8<KMaxTzIdDigits> name; |
|
183 name.Num(iReferenceId); |
|
184 SetIdL(name); |
|
185 } |
|
186 } |
|
187 |
|
188 |
|
189 /** |
|
190 Replicates a CTzId. |
|
191 |
|
192 @return A pointer to CTzId; clients own the object. |
|
193 |
|
194 @leave KErrNoMemory or some other system error code. |
|
195 |
|
196 @internalComponent |
|
197 */ |
|
198 EXPORT_C CTzId* CTzId::CloneL() const |
|
199 { |
|
200 CTzId* clone = NULL; |
|
201 if (iZoneId) |
|
202 { |
|
203 clone = NewL(*iZoneId); |
|
204 clone->iReferenceId = iReferenceId; |
|
205 } |
|
206 else |
|
207 { |
|
208 clone = new(ELeave) CTzId(iReferenceId); |
|
209 } |
|
210 return clone; |
|
211 } |
|
212 |
|
213 |
|
214 /** |
|
215 Retrieves the time zone's name. |
|
216 |
|
217 This can be used after calling RTz::GetTimeZoneIdL(). |
|
218 |
|
219 @return The time zone's name, if one has been set. A NULL descriptor if not. |
|
220 */ |
|
221 EXPORT_C const TDesC8& CTzId::TimeZoneNameID() const |
|
222 { |
|
223 if (NULL == iZoneId) |
|
224 { |
|
225 return KNullDesC8(); |
|
226 } |
|
227 |
|
228 return *iZoneId; |
|
229 } |
|
230 |
|
231 |
|
232 /** |
|
233 Retrieves the time zone's numeric ID. |
|
234 |
|
235 This can be used after calling RTz::GetTimeZoneIdL(). |
|
236 |
|
237 @return The time zone's numeric ID, generated by the time zone compiler. |
|
238 */ |
|
239 EXPORT_C TUint CTzId::TimeZoneNumericID() const |
|
240 { |
|
241 return iReferenceId; |
|
242 } |
|
243 |
|
244 |
|
245 /** |
|
246 Sets the numeric time zone ID. |
|
247 |
|
248 @param aNumericId The new numeric ID, generated by the time zone compiler. |
|
249 |
|
250 @internalComponent |
|
251 */ |
|
252 EXPORT_C void CTzId::SetId(TUint aNumericId) |
|
253 { |
|
254 iReferenceId = aNumericId; |
|
255 } |
|
256 |
|
257 |
|
258 /** |
|
259 Sets the the time zone's name. |
|
260 |
|
261 @param aNameIdentity string TZID as used in the Olson's TZ Database |
|
262 |
|
263 @internalComponent |
|
264 */ |
|
265 EXPORT_C void CTzId::SetIdL(const TDesC8& aNameIdentity) |
|
266 { |
|
267 delete iZoneId; |
|
268 iZoneId = NULL; |
|
269 |
|
270 iZoneId = aNameIdentity.AllocL(); |
|
271 } |
|
272 |
|
273 |
|
274 /** |
|
275 Equality operator. |
|
276 |
|
277 @param aTZId The ID of another time zone. |
|
278 |
|
279 @return ETrue if the specified time zone ID is the same as this one, otherwise |
|
280 EFalse. |
|
281 */ |
|
282 EXPORT_C TBool CTzId::operator==(const CTzId& aTZId) const |
|
283 { |
|
284 if ((aTZId.iReferenceId != 0) && (iReferenceId != 0)) |
|
285 { |
|
286 return (aTZId.iReferenceId == iReferenceId); |
|
287 } |
|
288 else |
|
289 { |
|
290 if (iZoneId == NULL) |
|
291 { |
|
292 return EFalse; |
|
293 } |
|
294 |
|
295 if (aTZId.iZoneId == NULL) |
|
296 { |
|
297 return EFalse; |
|
298 } |
|
299 |
|
300 return (iZoneId->Compare(*(aTZId.iZoneId)) == 0); |
|
301 } |
|
302 } |
|
303 |
|
304 |
|
305 /** |
|
306 Determines if this time zone identifier has a numeric identifier value that |
|
307 belongs to the range of values used to identify user-defined time zones. |
|
308 |
|
309 @return Returns ETrue if this time zone identifier has a numeric identifier |
|
310 value that belongs to the range of values used to identify user-defined time |
|
311 zones and EFalse otherwise. |
|
312 */ |
|
313 EXPORT_C TBool CTzId::IsUserTzId() const |
|
314 { |
|
315 // Check if just the string identifier has been set. If so, we will need |
|
316 // to attempt to extract a number from the string identifier and use this |
|
317 // as the numeric identifier. |
|
318 if (iReferenceId == 0 && iZoneId && *iZoneId != KNullDesC8) |
|
319 { |
|
320 TUint intId; |
|
321 TLex8 lex(*iZoneId ); |
|
322 if(lex.Val(intId) == KErrNone) |
|
323 { |
|
324 CTzId* self = const_cast<CTzId*>(this); |
|
325 self->SetId(intId); |
|
326 } |
|
327 } |
|
328 |
|
329 return IsUserTzId(iReferenceId); |
|
330 } |
|
331 |
|
332 |
|
333 /** |
|
334 Determines if the given numeric time zone identifier value belongs to the range |
|
335 of values used to identify user-defined time zones. |
|
336 |
|
337 @param aTzId Numeric time zone identifier value. |
|
338 |
|
339 @return Returns ETrue if the given numeric time zone identifier value belongs to |
|
340 the range of values used to identify user-defined time zones and EFalse |
|
341 otherwise. |
|
342 */ |
|
343 EXPORT_C TBool CTzId::IsUserTzId(TUint aTzId) |
|
344 { |
|
345 return (aTzId >= KUserTzIdMin && aTzId <= KUserTzIdMax); |
|
346 } |