--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/dwtxhelper/mangoicu/UTimeZone.d	Sun Jun 22 22:57:31 2008 +0200
@@ -0,0 +1,263 @@
+/*******************************************************************************
+
+        @file UTimeZone.d
+        
+        Copyright (c) 2004 Kris Bell
+        
+        This software is provided 'as-is', without any express or implied
+        warranty. In no event will the authors be held liable for damages
+        of any kind arising from the use of this software.
+        
+        Permission is hereby granted to anyone to use this software for any 
+        purpose, including commercial applications, and to alter it and/or 
+        redistribute it freely, subject to the following restrictions:
+        
+        1. The origin of this software must not be misrepresented; you must 
+           not claim that you wrote the original software. If you use this 
+           software in a product, an acknowledgment within documentation of 
+           said product would be appreciated but is not required.
+
+        2. Altered source versions must be plainly marked as such, and must 
+           not be misrepresented as being the original software.
+
+        3. This notice may not be removed or altered from any distribution
+           of the source.
+
+        4. Derivative works are permitted, but they must carry this notice
+           in full and credit the original source.
+
+
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+        @version        Initial version, November 2004      
+        @author         Kris
+
+        Note that this package and documentation is built around the ICU 
+        project (http://oss.software.ibm.com/icu/). Below is the license 
+        statement as specified by that software:
+
+
+                        ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+
+        ICU License - ICU 1.8.1 and later
+
+        COPYRIGHT AND PERMISSION NOTICE
+
+        Copyright (c) 1995-2003 International Business Machines Corporation and 
+        others.
+
+        All rights reserved.
+
+        Permission is hereby granted, free of charge, to any person obtaining a
+        copy of this software and associated documentation files (the
+        "Software"), to deal in the Software without restriction, including
+        without limitation the rights to use, copy, modify, merge, publish,
+        distribute, and/or sell copies of the Software, and to permit persons
+        to whom the Software is furnished to do so, provided that the above
+        copyright notice(s) and this permission notice appear in all copies of
+        the Software and that both the above copyright notice(s) and this
+        permission notice appear in supporting documentation.
+
+        THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+        OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+        MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+        OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+        HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
+        INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
+        FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+        NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+        WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+        Except as contained in this notice, the name of a copyright holder
+        shall not be used in advertising or otherwise to promote the sale, use
+        or other dealings in this Software without prior written authorization
+        of the copyright holder.
+
+        ----------------------------------------------------------------------
+
+        All trademarks and registered trademarks mentioned herein are the 
+        property of their respective owners.
+
+*******************************************************************************/
+
+module dwtx.dwthelper.mangoicu.UTimeZone;
+
+private import  dwtx.dwthelper.mangoicu.ICU,
+                dwtx.dwthelper.mangoicu.UString,
+                dwtx.dwthelper.mangoicu.UEnumeration;
+
+/*******************************************************************************
+
+        A representation of a TimeZone. Unfortunately, ICU does not expose
+        this as a seperate entity from the C-API, so we have to make do 
+        with an approximation instead.
+
+*******************************************************************************/
+
+struct UTimeZone 
+{
+        public wchar[]  name;
+
+        public static UTimeZone Default =       {null};
+        public static UTimeZone Gmt =           {"Etc/GMT"};
+        public static UTimeZone Greenwich =     {"Etc/Greenwich"};
+        public static UTimeZone Uct =           {"Etc/UCT"};
+        public static UTimeZone Utc =           {"Etc/UTC"};
+        public static UTimeZone Universal =     {"Etc/Universal"};
+
+        public static UTimeZone GmtPlus0 =      {"Etc/GMT+0"};
+        public static UTimeZone GmtPlus1 =      {"Etc/GMT+1"};
+        public static UTimeZone GmtPlus2 =      {"Etc/GMT+2"};
+        public static UTimeZone GmtPlus3 =      {"Etc/GMT+3"};
+        public static UTimeZone GmtPlus4 =      {"Etc/GMT+4"};
+        public static UTimeZone GmtPlus5 =      {"Etc/GMT+5"};
+        public static UTimeZone GmtPlus6 =      {"Etc/GMT+6"};
+        public static UTimeZone GmtPlus7 =      {"Etc/GMT+7"};
+        public static UTimeZone GmtPlus8 =      {"Etc/GMT+8"};
+        public static UTimeZone GmtPlus9 =      {"Etc/GMT+9"};
+        public static UTimeZone GmtPlus10 =     {"Etc/GMT+10"};
+        public static UTimeZone GmtPlus11 =     {"Etc/GMT+11"};
+        public static UTimeZone GmtPlus12 =     {"Etc/GMT+12"};
+
+        public static UTimeZone GmtMinus0 =     {"Etc/GMT-0"};
+        public static UTimeZone GmtMinus1 =     {"Etc/GMT-1"};
+        public static UTimeZone GmtMinus2 =     {"Etc/GMT-2"};
+        public static UTimeZone GmtMinus3 =     {"Etc/GMT-3"};
+        public static UTimeZone GmtMinus4 =     {"Etc/GMT-4"};
+        public static UTimeZone GmtMinus5 =     {"Etc/GMT-5"};
+        public static UTimeZone GmtMinus6 =     {"Etc/GMT-6"};
+        public static UTimeZone GmtMinus7 =     {"Etc/GMT-7"};
+        public static UTimeZone GmtMinus8 =     {"Etc/GMT-8"};
+        public static UTimeZone GmtMinus9 =     {"Etc/GMT-9"};
+        public static UTimeZone GmtMinus10 =    {"Etc/GMT-10"};
+        public static UTimeZone GmtMinus11 =    {"Etc/GMT-11"};
+        public static UTimeZone GmtMinus12 =    {"Etc/GMT-12"};
+
+        /***********************************************************************
+        
+                Get the default time zone.
+
+        ***********************************************************************/
+
+        static void getDefault (inout UTimeZone zone)
+        {       
+                uint format (wchar* dst, uint length, inout ICU.Error e)
+                {
+                        return ucal_getDefaultTimeZone (dst, length, e);
+                }
+
+                UString s = new UString(64);
+                s.format (&format, "failed to get default time zone");
+                zone.name = s.get();
+        }
+
+        /***********************************************************************
+        
+                Set the default time zone.
+
+        ***********************************************************************/
+
+        static void setDefault (inout UTimeZone zone)
+        {       
+                ICU.Error e;
+
+                ucal_setDefaultTimeZone (ICU.toString (zone.name), e);
+                ICU.testError (e, "failed to set default time zone");                
+        }
+
+        /***********************************************************************
+        
+                Return the amount of time in milliseconds that the clock 
+                is advanced during daylight savings time for the given 
+                time zone, or zero if the time zone does not observe daylight 
+                savings time
+
+        ***********************************************************************/
+
+        static uint getDSTSavings (inout UTimeZone zone)
+        {       
+                ICU.Error e;
+
+                uint x = ucal_getDSTSavings (ICU.toString (zone.name), e);
+                ICU.testError (e, "failed to get DST savings");                
+                return x;
+        }
+
+
+        /**********************************************************************
+
+                Iterate over the available timezone names
+
+        **********************************************************************/
+
+        static int opApply (int delegate(inout wchar[] element) dg)
+        {
+                ICU.Error       e;
+                wchar[]         name;
+                int             result;
+
+                void* h = ucal_openTimeZones (e);
+                ICU.testError (e, "failed to open timeszone iterator");
+
+                UEnumeration zones = new UEnumeration (cast(UEnumeration.Handle) h);               
+                while (zones.next(name) && (result = dg(name)) != 0) {}
+                delete zones;
+                return result;
+        }
+
+
+
+        /***********************************************************************
+        
+                Bind the ICU functions from a shared library. This is
+                complicated by the issues regarding D and DLLs on the
+                Windows platform
+
+        ***********************************************************************/
+
+        private static void* library;
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        private static extern (C) 
+        {
+                void* function (inout ICU.Error) ucal_openTimeZones;
+                uint  function (wchar*, uint, inout ICU.Error) ucal_getDefaultTimeZone;
+                void  function (wchar*, inout ICU.Error) ucal_setDefaultTimeZone;
+                uint  function (wchar*, inout ICU.Error) ucal_getDSTSavings;
+        }
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static  FunctionLoader.Bind[] targets = 
+                [
+                {cast(void**) &ucal_openTimeZones,      "ucal_openTimeZones"}, 
+                {cast(void**) &ucal_getDefaultTimeZone, "ucal_getDefaultTimeZone"}, 
+                {cast(void**) &ucal_setDefaultTimeZone, "ucal_setDefaultTimeZone"}, 
+                {cast(void**) &ucal_getDSTSavings,      "ucal_getDSTSavings"}, 
+                ];
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static this ()
+        {
+                library = FunctionLoader.bind (ICU.icuin, targets);
+        }
+
+        /***********************************************************************
+
+        ***********************************************************************/
+
+        static ~this ()
+        {
+                FunctionLoader.unbind (library);
+        }
+}