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      1 /********************************************************************
      2  * COPYRIGHT:
      3  * Copyright (c) 1999-2003, International Business Machines Corporation and
      4  * others. All Rights Reserved.
      5  ********************************************************************/
      6 
      7 #include "unicode/unistr.h"
      8 #include "unicode/calendar.h"
      9 #include "unicode/datefmt.h"
     10 #include <stdio.h>
     11 #include <stdlib.h>
     12 #include "util.h"
     13 
     14 /**
     15  * If the ID supplied to TimeZone is not a valid system ID,
     16  * TimeZone::createTimeZone() will return a GMT zone object.  In order
     17  * to detect this error, we check the ID of the returned zone against
     18  * the ID we requested.  If they don't match, we fail with an error.
     19  */
     20 TimeZone* createZone(const UnicodeString& id) {
     21     UnicodeString str;
     22     TimeZone* zone = TimeZone::createTimeZone(id);
     23     if (zone->getID(str) != id) {
     24         delete zone;
     25         printf("Error: TimeZone::createTimeZone(");
     26         uprintf(id);
     27         printf(") returned zone with ID ");
     28         uprintf(str);
     29         printf("\n");
     30         exit(1);
     31     }
     32     return zone;
     33 }
     34 
     35 int main(int argc, char **argv) {
     36 
     37     Calendar *cal;
     38     TimeZone *zone;
     39     DateFormat *fmt;
     40     UErrorCode status = U_ZERO_ERROR;
     41     UnicodeString str;
     42     UDate date;
     43 
     44     // The languages in which we will display the date
     45     static char* LANGUAGE[] = {
     46         "en", "de", "fr"
     47     };
     48     static const int32_t N_LANGUAGE = sizeof(LANGUAGE)/sizeof(LANGUAGE[0]);
     49 
     50     // The time zones in which we will display the time
     51     static char* TIMEZONE[] = {
     52         "America/Los_Angeles",
     53         "America/New_York",
     54         "Europe/Paris",
     55         "Europe/Berlin"
     56     };
     57     static const int32_t N_TIMEZONE = sizeof(TIMEZONE)/sizeof(TIMEZONE[0]);
     58 
     59     // Create a calendar
     60     cal = Calendar::createInstance(status);
     61     check(status, "Calendar::createInstance");
     62     zone = createZone("GMT"); // Create a GMT zone
     63     cal->adoptTimeZone(zone);
     64     cal->clear();
     65     cal->set(1999, Calendar::JUNE, 4);
     66     date = cal->getTime(status);
     67     check(status, "Calendar::getTime");
     68 
     69     for (int32_t i=0; i<N_LANGUAGE; ++i) {
     70         Locale loc(LANGUAGE[i]);
     71 
     72         // Create a formatter for DATE and TIME
     73         fmt = DateFormat::createDateTimeInstance(
     74                                 DateFormat::kFull, DateFormat::kFull, loc);
     75 
     76         for (int32_t j=0; j<N_TIMEZONE; ++j) {
     77 
     78             cal->adoptTimeZone(createZone(TIMEZONE[j]));
     79             fmt->setCalendar(*cal);
     80 
     81             // Format the date
     82             str.remove();
     83             fmt->format(date, str, status);
     84 
     85             // Display the formatted date string
     86             printf("Date (%s, %s): ", LANGUAGE[i], TIMEZONE[j]);
     87             uprintf(escape(str));
     88             printf("\n\n");
     89         }
     90 
     91         delete fmt;
     92     }
     93 
     94     printf("Exiting successfully\n");
     95     return 0;
     96 }
     97