Home | History | Annotate | Download | only in i18n
      1 /*
      2 ********************************************************************************
      3 *   Copyright (C) 2005-2009, International Business Machines
      4 *   Corporation and others.  All Rights Reserved.
      5 ********************************************************************************
      6 *
      7 * File WINDTFMT.CPP
      8 *
      9 ********************************************************************************
     10 */
     11 
     12 #include "unicode/utypes.h"
     13 
     14 #ifdef U_WINDOWS
     15 
     16 #if !UCONFIG_NO_FORMATTING
     17 
     18 #include "unicode/ures.h"
     19 #include "unicode/format.h"
     20 #include "unicode/fmtable.h"
     21 #include "unicode/datefmt.h"
     22 #include "unicode/msgfmt.h"
     23 #include "unicode/calendar.h"
     24 #include "unicode/gregocal.h"
     25 #include "unicode/locid.h"
     26 #include "unicode/unistr.h"
     27 #include "unicode/ustring.h"
     28 #include "unicode/timezone.h"
     29 #include "unicode/utmscale.h"
     30 
     31 #include "cmemory.h"
     32 #include "uresimp.h"
     33 #include "windtfmt.h"
     34 #include "wintzimpl.h"
     35 
     36 #   define WIN32_LEAN_AND_MEAN
     37 #   define VC_EXTRALEAN
     38 #   define NOUSER
     39 #   define NOSERVICE
     40 #   define NOIME
     41 #   define NOMCX
     42 #include <windows.h>
     43 
     44 U_NAMESPACE_BEGIN
     45 
     46 UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Win32DateFormat)
     47 
     48 #define ARRAY_SIZE(array) (sizeof array / sizeof array[0])
     49 
     50 #define NEW_ARRAY(type,count) (type *) uprv_malloc((count) * sizeof(type))
     51 #define DELETE_ARRAY(array) uprv_free((void *) (array))
     52 
     53 #define STACK_BUFFER_SIZE 64
     54 
     55 UnicodeString* Win32DateFormat::getTimeDateFormat(const Calendar *cal, const Locale *locale, UErrorCode &status) const
     56 {
     57     UnicodeString *result = NULL;
     58     const char *type = cal->getType();
     59     const char *base = locale->getBaseName();
     60     UResourceBundle *topBundle = ures_open((char *) 0, base, &status);
     61     UResourceBundle *calBundle = ures_getByKey(topBundle, "calendar", NULL, &status);
     62     UResourceBundle *typBundle = ures_getByKeyWithFallback(calBundle, type, NULL, &status);
     63     UResourceBundle *patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", NULL, &status);
     64 
     65     if (status == U_MISSING_RESOURCE_ERROR) {
     66         status = U_ZERO_ERROR;
     67         typBundle = ures_getByKeyWithFallback(calBundle, "gregorian", typBundle, &status);
     68         patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", patBundle, &status);
     69     }
     70 
     71     if (U_FAILURE(status)) {
     72         static const UChar defaultPattern[] = {0x007B, 0x0031, 0x007D, 0x0020, 0x007B, 0x0030, 0x007D, 0x0000}; // "{1} {0}"
     73         return new UnicodeString(defaultPattern, ARRAY_SIZE(defaultPattern));
     74     }
     75 
     76     int32_t resStrLen = 0;
     77     int32_t glueIndex = DateFormat::kDateTime;
     78     int32_t patSize = ures_getSize(patBundle);
     79     if (patSize >= (DateFormat::kDateTimeOffset + DateFormat::kShort + 1)) {
     80         // Get proper date time format
     81         glueIndex = (int32_t)(DateFormat::kDateTimeOffset + (fDateStyle - DateFormat::kDateOffset));
     82     }
     83     const UChar *resStr = ures_getStringByIndex(patBundle, glueIndex, &resStrLen, &status);
     84 
     85     result = new UnicodeString(TRUE, resStr, resStrLen);
     86 
     87     ures_close(patBundle);
     88     ures_close(typBundle);
     89     ures_close(calBundle);
     90     ures_close(topBundle);
     91 
     92     return result;
     93 }
     94 
     95 // TODO: Range-check timeStyle, dateStyle
     96 Win32DateFormat::Win32DateFormat(DateFormat::EStyle timeStyle, DateFormat::EStyle dateStyle, const Locale &locale, UErrorCode &status)
     97   : DateFormat(), fDateTimeMsg(NULL), fTimeStyle(timeStyle), fDateStyle(dateStyle), fLocale(&locale), fZoneID()
     98 {
     99     if (U_SUCCESS(status)) {
    100         fLCID = locale.getLCID();
    101         fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
    102         uprv_memset(fTZI, 0, sizeof(TIME_ZONE_INFORMATION));
    103         adoptCalendar(Calendar::createInstance(locale, status));
    104     }
    105 }
    106 
    107 Win32DateFormat::Win32DateFormat(const Win32DateFormat &other)
    108   : DateFormat(other)
    109 {
    110     *this = other;
    111 }
    112 
    113 Win32DateFormat::~Win32DateFormat()
    114 {
    115 //    delete fCalendar;
    116     uprv_free(fTZI);
    117     delete fDateTimeMsg;
    118 }
    119 
    120 Win32DateFormat &Win32DateFormat::operator=(const Win32DateFormat &other)
    121 {
    122     // The following handles fCalendar
    123     DateFormat::operator=(other);
    124 
    125 //    delete fCalendar;
    126 
    127     this->fDateTimeMsg = other.fDateTimeMsg;
    128     this->fTimeStyle   = other.fTimeStyle;
    129     this->fDateStyle   = other.fDateStyle;
    130     this->fLCID        = other.fLCID;
    131 //    this->fCalendar    = other.fCalendar->clone();
    132     this->fZoneID      = other.fZoneID;
    133 
    134     this->fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
    135     *this->fTZI = *other.fTZI;
    136 
    137     return *this;
    138 }
    139 
    140 Format *Win32DateFormat::clone(void) const
    141 {
    142     return new Win32DateFormat(*this);
    143 }
    144 
    145 // TODO: Is just ignoring pos the right thing?
    146 UnicodeString &Win32DateFormat::format(Calendar &cal, UnicodeString &appendTo, FieldPosition &pos) const
    147 {
    148     FILETIME ft;
    149     SYSTEMTIME st_gmt;
    150     SYSTEMTIME st_local;
    151     TIME_ZONE_INFORMATION tzi = *fTZI;
    152     UErrorCode status = U_ZERO_ERROR;
    153     const TimeZone &tz = cal.getTimeZone();
    154     int64_t uct, uft;
    155 
    156     setTimeZoneInfo(&tzi, tz);
    157 
    158     uct = utmscale_fromInt64((int64_t) cal.getTime(status), UDTS_ICU4C_TIME, &status);
    159     uft = utmscale_toInt64(uct, UDTS_WINDOWS_FILE_TIME, &status);
    160 
    161     ft.dwLowDateTime =  (DWORD) (uft & 0xFFFFFFFF);
    162     ft.dwHighDateTime = (DWORD) ((uft >> 32) & 0xFFFFFFFF);
    163 
    164     FileTimeToSystemTime(&ft, &st_gmt);
    165     SystemTimeToTzSpecificLocalTime(&tzi, &st_gmt, &st_local);
    166 
    167 
    168     if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
    169         UnicodeString *date = new UnicodeString();
    170         UnicodeString *time = new UnicodeString();
    171         UnicodeString *pattern = fDateTimeMsg;
    172         Formattable timeDateArray[2];
    173 
    174         formatDate(&st_local, *date);
    175         formatTime(&st_local, *time);
    176 
    177         timeDateArray[0].adoptString(time);
    178         timeDateArray[1].adoptString(date);
    179 
    180         if (strcmp(fCalendar->getType(), cal.getType()) != 0) {
    181             pattern = getTimeDateFormat(&cal, fLocale, status);
    182         }
    183 
    184         MessageFormat::format(*pattern, timeDateArray, 2, appendTo, status);
    185     } else if (fDateStyle != DateFormat::kNone) {
    186         formatDate(&st_local, appendTo);
    187     } else if (fTimeStyle != DateFormat::kNone) {
    188         formatTime(&st_local, appendTo);
    189     }
    190 
    191     return appendTo;
    192 }
    193 
    194 void Win32DateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& pos) const
    195 {
    196     pos.setErrorIndex(pos.getIndex());
    197 }
    198 
    199 void Win32DateFormat::adoptCalendar(Calendar *newCalendar)
    200 {
    201     if (fCalendar == NULL || strcmp(fCalendar->getType(), newCalendar->getType()) != 0) {
    202         UErrorCode status = U_ZERO_ERROR;
    203 
    204         if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
    205             delete fDateTimeMsg;
    206             fDateTimeMsg = getTimeDateFormat(newCalendar, fLocale, status);
    207         }
    208     }
    209 
    210     delete fCalendar;
    211     fCalendar = newCalendar;
    212 
    213     fZoneID = setTimeZoneInfo(fTZI, fCalendar->getTimeZone());
    214 }
    215 
    216 void Win32DateFormat::setCalendar(const Calendar &newCalendar)
    217 {
    218     adoptCalendar(newCalendar.clone());
    219 }
    220 
    221 void Win32DateFormat::adoptTimeZone(TimeZone *zoneToAdopt)
    222 {
    223     fZoneID = setTimeZoneInfo(fTZI, *zoneToAdopt);
    224     fCalendar->adoptTimeZone(zoneToAdopt);
    225 }
    226 
    227 void Win32DateFormat::setTimeZone(const TimeZone& zone)
    228 {
    229     fZoneID = setTimeZoneInfo(fTZI, zone);
    230     fCalendar->setTimeZone(zone);
    231 }
    232 
    233 static const DWORD dfFlags[] = {DATE_LONGDATE, DATE_LONGDATE, DATE_SHORTDATE, DATE_SHORTDATE};
    234 
    235 void Win32DateFormat::formatDate(const SYSTEMTIME *st, UnicodeString &appendTo) const
    236 {
    237     int result;
    238     UChar stackBuffer[STACK_BUFFER_SIZE];
    239     UChar *buffer = stackBuffer;
    240 
    241     result = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, STACK_BUFFER_SIZE);
    242 
    243     if (result == 0) {
    244         if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
    245             int newLength = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, NULL, 0);
    246 
    247             buffer = NEW_ARRAY(UChar, newLength);
    248             GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, newLength);
    249         }
    250     }
    251 
    252     appendTo.append(buffer, (int32_t) wcslen(buffer));
    253 
    254     if (buffer != stackBuffer) {
    255         DELETE_ARRAY(buffer);
    256     }
    257 }
    258 
    259 static const DWORD tfFlags[] = {0, 0, 0, TIME_NOSECONDS};
    260 
    261 void Win32DateFormat::formatTime(const SYSTEMTIME *st, UnicodeString &appendTo) const
    262 {
    263     int result;
    264     UChar stackBuffer[STACK_BUFFER_SIZE];
    265     UChar *buffer = stackBuffer;
    266 
    267     result = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, STACK_BUFFER_SIZE);
    268 
    269     if (result == 0) {
    270         if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
    271             int newLength = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, NULL, 0);
    272 
    273             buffer = NEW_ARRAY(UChar, newLength);
    274             GetDateFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, newLength);
    275         }
    276     }
    277 
    278     appendTo.append(buffer, (int32_t) wcslen(buffer));
    279 
    280     if (buffer != stackBuffer) {
    281         DELETE_ARRAY(buffer);
    282     }
    283 }
    284 
    285 UnicodeString Win32DateFormat::setTimeZoneInfo(TIME_ZONE_INFORMATION *tzi, const TimeZone &zone) const
    286 {
    287     UnicodeString zoneID;
    288 
    289     zone.getID(zoneID);
    290 
    291     if (zoneID.compare(fZoneID) != 0) {
    292         UnicodeString icuid;
    293 
    294         zone.getID(icuid);
    295         if (! uprv_getWindowsTimeZoneInfo(tzi, icuid.getBuffer(), icuid.length())) {
    296             UBool found = FALSE;
    297             int32_t ec = TimeZone::countEquivalentIDs(icuid);
    298 
    299             for (int z = 0; z < ec; z += 1) {
    300                 UnicodeString equiv = TimeZone::getEquivalentID(icuid, z);
    301 
    302                 if (found = uprv_getWindowsTimeZoneInfo(tzi, equiv.getBuffer(), equiv.length())) {
    303                     break;
    304                 }
    305             }
    306 
    307             if (! found) {
    308                 GetTimeZoneInformation(tzi);
    309             }
    310         }
    311     }
    312 
    313     return zoneID;
    314 }
    315 
    316 U_NAMESPACE_END
    317 
    318 #endif /* #if !UCONFIG_NO_FORMATTING */
    319 
    320 #endif // #ifdef U_WINDOWS
    321 
    322