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comparison com.ibm.icu/src/com/ibm/icu/mangoicu/UTimeZone.d @ 92:ebefa5c2eab4

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moving ICU bindings to com.ibm.icu
author Frank Benoit <benoit@tionex.de>
date Sun, 19 Apr 2009 13:49:38 +0200
parents base/src/java/mangoicu/UTimeZone.d@1bf55a6eb092
children 536e43f63c81
comparison
equal deleted inserted replaced
91:2755ef2c8ef8 92:ebefa5c2eab4
1 /*******************************************************************************
2
3 @file UTimeZone.d
4
5 Copyright (c) 2004 Kris Bell
6
7 This software is provided 'as-is', without any express or implied
8 warranty. In no event will the authors be held liable for damages
9 of any kind arising from the use of this software.
10
11 Permission is hereby granted to anyone to use this software for any
12 purpose, including commercial applications, and to alter it and/or
13 redistribute it freely, subject to the following restrictions:
14
15 1. The origin of this software must not be misrepresented; you must
16 not claim that you wrote the original software. If you use this
17 software in a product, an acknowledgment within documentation of
18 said product would be appreciated but is not required.
19
20 2. Altered source versions must be plainly marked as such, and must
21 not be misrepresented as being the original software.
22
23 3. This notice may not be removed or altered from any distribution
24 of the source.
25
26 4. Derivative works are permitted, but they must carry this notice
27 in full and credit the original source.
28
29
30 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
31
32
33 @version Initial version, November 2004
34 @author Kris
35
36 Note that this package and documentation is built around the ICU
37 project (http://oss.software.ibm.com/icu/). Below is the license
38 statement as specified by that software:
39
40
41 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
42
43
44 ICU License - ICU 1.8.1 and later
45
46 COPYRIGHT AND PERMISSION NOTICE
47
48 Copyright (c) 1995-2003 International Business Machines Corporation and
49 others.
50
51 All rights reserved.
52
53 Permission is hereby granted, free of charge, to any person obtaining a
54 copy of this software and associated documentation files (the
55 "Software"), to deal in the Software without restriction, including
56 without limitation the rights to use, copy, modify, merge, publish,
57 distribute, and/or sell copies of the Software, and to permit persons
58 to whom the Software is furnished to do so, provided that the above
59 copyright notice(s) and this permission notice appear in all copies of
60 the Software and that both the above copyright notice(s) and this
61 permission notice appear in supporting documentation.
62
63 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
64 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
65 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
66 OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
67 HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
68 INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
69 FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
70 NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
71 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
72
73 Except as contained in this notice, the name of a copyright holder
74 shall not be used in advertising or otherwise to promote the sale, use
75 or other dealings in this Software without prior written authorization
76 of the copyright holder.
77
78 ----------------------------------------------------------------------
79
80 All trademarks and registered trademarks mentioned herein are the
81 property of their respective owners.
82
83 *******************************************************************************/
84
85 module com.ibm.icu.mangoicu.UTimeZone;
86
87 private import com.ibm.icu.mangoicu.ICU,
88 com.ibm.icu.mangoicu.UString,
89 com.ibm.icu.mangoicu.UEnumeration;
90 private import java.lang.util;
91
92 /*******************************************************************************
93
94 A representation of a TimeZone. Unfortunately, ICU does not expose
95 this as a seperate entity from the C-API, so we have to make do
96 with an approximation instead.
97
98 *******************************************************************************/
99
100 struct UTimeZone
101 {
102 public CString16 name;
103
104 public static UTimeZone Default = {null};
105 public static UTimeZone Gmt = {"Etc/GMT"};
106 public static UTimeZone Greenwich = {"Etc/Greenwich"};
107 public static UTimeZone Uct = {"Etc/UCT"};
108 public static UTimeZone Utc = {"Etc/UTC"};
109 public static UTimeZone Universal = {"Etc/Universal"};
110
111 public static UTimeZone GmtPlus0 = {"Etc/GMT+0"};
112 public static UTimeZone GmtPlus1 = {"Etc/GMT+1"};
113 public static UTimeZone GmtPlus2 = {"Etc/GMT+2"};
114 public static UTimeZone GmtPlus3 = {"Etc/GMT+3"};
115 public static UTimeZone GmtPlus4 = {"Etc/GMT+4"};
116 public static UTimeZone GmtPlus5 = {"Etc/GMT+5"};
117 public static UTimeZone GmtPlus6 = {"Etc/GMT+6"};
118 public static UTimeZone GmtPlus7 = {"Etc/GMT+7"};
119 public static UTimeZone GmtPlus8 = {"Etc/GMT+8"};
120 public static UTimeZone GmtPlus9 = {"Etc/GMT+9"};
121 public static UTimeZone GmtPlus10 = {"Etc/GMT+10"};
122 public static UTimeZone GmtPlus11 = {"Etc/GMT+11"};
123 public static UTimeZone GmtPlus12 = {"Etc/GMT+12"};
124
125 public static UTimeZone GmtMinus0 = {"Etc/GMT-0"};
126 public static UTimeZone GmtMinus1 = {"Etc/GMT-1"};
127 public static UTimeZone GmtMinus2 = {"Etc/GMT-2"};
128 public static UTimeZone GmtMinus3 = {"Etc/GMT-3"};
129 public static UTimeZone GmtMinus4 = {"Etc/GMT-4"};
130 public static UTimeZone GmtMinus5 = {"Etc/GMT-5"};
131 public static UTimeZone GmtMinus6 = {"Etc/GMT-6"};
132 public static UTimeZone GmtMinus7 = {"Etc/GMT-7"};
133 public static UTimeZone GmtMinus8 = {"Etc/GMT-8"};
134 public static UTimeZone GmtMinus9 = {"Etc/GMT-9"};
135 public static UTimeZone GmtMinus10 = {"Etc/GMT-10"};
136 public static UTimeZone GmtMinus11 = {"Etc/GMT-11"};
137 public static UTimeZone GmtMinus12 = {"Etc/GMT-12"};
138
139 /***********************************************************************
140
141 Get the default time zone.
142
143 ***********************************************************************/
144
145 static void getDefault (inout UTimeZone zone)
146 {
147 uint format (wchar* dst, uint length, inout ICU.UErrorCode e)
148 {
149 return ucal_getDefaultTimeZone (dst, length, e);
150 }
151
152 UString s = new UString(64);
153 s.format (&format, "failed to get default time zone");
154 zone.name = s.get();
155 }
156
157 /***********************************************************************
158
159 Set the default time zone.
160
161 ***********************************************************************/
162
163 static void setDefault (inout UTimeZone zone)
164 {
165 ICU.UErrorCode e;
166
167 ucal_setDefaultTimeZone (ICU.toString (zone.name), e);
168 ICU.testError (e, "failed to set default time zone");
169 }
170
171 /***********************************************************************
172
173 Return the amount of time in milliseconds that the clock
174 is advanced during daylight savings time for the given
175 time zone, or zero if the time zone does not observe daylight
176 savings time
177
178 ***********************************************************************/
179
180 static uint getDSTSavings (inout UTimeZone zone)
181 {
182 ICU.UErrorCode e;
183
184 uint x = ucal_getDSTSavings (ICU.toString (zone.name), e);
185 ICU.testError (e, "failed to get DST savings");
186 return x;
187 }
188
189
190 /**********************************************************************
191
192 Iterate over the available timezone names
193
194 **********************************************************************/
195
196 static int opApply (int delegate(inout wchar[] element) dg)
197 {
198 ICU.UErrorCode e;
199 wchar[] name;
200 int result;
201
202 void* h = ucal_openTimeZones (e);
203 ICU.testError (e, "failed to open timeszone iterator");
204
205 UEnumeration zones = new UEnumeration (cast(UEnumeration.Handle) h);
206 while (zones.next(name) && (result = dg(name)) != 0) {}
207 delete zones;
208 return result;
209 }
210
211
212
213 /***********************************************************************
214
215 Bind the ICU functions from a shared library. This is
216 complicated by the issues regarding D and DLLs on the
217 Windows platform
218
219 ***********************************************************************/
220
221 private static void* library;
222
223 /***********************************************************************
224
225 ***********************************************************************/
226
227 private static extern (C)
228 {
229 void* function (inout ICU.UErrorCode) ucal_openTimeZones;
230 uint function (wchar*, uint, inout ICU.UErrorCode) ucal_getDefaultTimeZone;
231 void function (wchar*, inout ICU.UErrorCode) ucal_setDefaultTimeZone;
232 uint function (wchar*, inout ICU.UErrorCode) ucal_getDSTSavings;
233 }
234
235 /***********************************************************************
236
237 ***********************************************************************/
238
239 static FunctionLoader.Bind[] targets =
240 [
241 {cast(void**) &ucal_openTimeZones, "ucal_openTimeZones"},
242 {cast(void**) &ucal_getDefaultTimeZone, "ucal_getDefaultTimeZone"},
243 {cast(void**) &ucal_setDefaultTimeZone, "ucal_setDefaultTimeZone"},
244 {cast(void**) &ucal_getDSTSavings, "ucal_getDSTSavings"},
245 ];
246
247 /***********************************************************************
248
249 ***********************************************************************/
250
251 static this ()
252 {
253 library = FunctionLoader.bind (ICU.icuin, targets);
254 }
255
256 /***********************************************************************
257
258 ***********************************************************************/
259
260 static ~this ()
261 {
262 FunctionLoader.unbind (library);
263 }
264 }