icuSources/i18n/windtfmt.cpp

   1 /*
   2 ********************************************************************************
   3 *   Copyright (C) 2005-2014, 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 #if U_PLATFORM_HAS_WIN32_API
  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 == NULL ? NULL : new UnicodeString(*other.fDateTimeMsg);
 128     this->fTimeStyle   = other.fTimeStyle;
 129     this->fDateStyle   = other.fDateStyle;
 130     this->fLocale      = other.fLocale;
 131     this->fLCID        = other.fLCID;
 132 //    this->fCalendar    = other.fCalendar->clone();
 133     this->fZoneID      = other.fZoneID;
 134
 135     this->fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
 136     *this->fTZI = *other.fTZI;
 137
 138     return *this;
 139 }
 140
 141 Format *Win32DateFormat::clone(void) const
 142 {
 143     return new Win32DateFormat(*this);
 144 }
 145
 146 // TODO: Is just ignoring pos the right thing?
 147 UnicodeString &Win32DateFormat::format(Calendar &cal, UnicodeString &appendTo, FieldPosition &pos) const
 148 {
 149     FILETIME ft;
 150     SYSTEMTIME st_gmt;
 151     SYSTEMTIME st_local;
 152     TIME_ZONE_INFORMATION tzi = *fTZI;
 153     UErrorCode status = U_ZERO_ERROR;
 154     const TimeZone &tz = cal.getTimeZone();
 155     int64_t uct, uft;
 156
 157     setTimeZoneInfo(&tzi, tz);
 158
 159     uct = utmscale_fromInt64((int64_t) cal.getTime(status), UDTS_ICU4C_TIME, &status);
 160     uft = utmscale_toInt64(uct, UDTS_WINDOWS_FILE_TIME, &status);
 161
 162     ft.dwLowDateTime =  (DWORD) (uft & 0xFFFFFFFF);
 163     ft.dwHighDateTime = (DWORD) ((uft >> 32) & 0xFFFFFFFF);
 164
 165     FileTimeToSystemTime(&ft, &st_gmt);
 166     SystemTimeToTzSpecificLocalTime(&tzi, &st_gmt, &st_local);
 167
 168
 169     if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
 170         UnicodeString *date = new UnicodeString();
 171         UnicodeString *time = new UnicodeString();
 172         UnicodeString *pattern = fDateTimeMsg;
 173         Formattable timeDateArray[2];
 174
 175         formatDate(&st_local, *date);
 176         formatTime(&st_local, *time);
 177
 178         timeDateArray[0].adoptString(time);
 179         timeDateArray[1].adoptString(date);
 180
 181         if (strcmp(fCalendar->getType(), cal.getType()) != 0) {
 182             pattern = getTimeDateFormat(&cal, &fLocale, status);
 183         }
 184
 185         MessageFormat::format(*pattern, timeDateArray, 2, appendTo, status);
 186     } else if (fDateStyle != DateFormat::kNone) {
 187         formatDate(&st_local, appendTo);
 188     } else if (fTimeStyle != DateFormat::kNone) {
 189         formatTime(&st_local, appendTo);
 190     }
 191
 192     return appendTo;
 193 }
 194
 195 void Win32DateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& pos) const
 196 {
 197     pos.setErrorIndex(pos.getIndex());
 198 }
 199
 200 void Win32DateFormat::adoptCalendar(Calendar *newCalendar)
 201 {
 202     if (fCalendar == NULL || strcmp(fCalendar->getType(), newCalendar->getType()) != 0) {
 203         UErrorCode status = U_ZERO_ERROR;
 204
 205         if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
 206             delete fDateTimeMsg;
 207             fDateTimeMsg = getTimeDateFormat(newCalendar, &fLocale, status);
 208         }
 209     }
 210
 211     delete fCalendar;
 212     fCalendar = newCalendar;
 213
 214     fZoneID = setTimeZoneInfo(fTZI, fCalendar->getTimeZone());
 215 }
 216
 217 void Win32DateFormat::setCalendar(const Calendar &newCalendar)
 218 {
 219     adoptCalendar(newCalendar.clone());
 220 }
 221
 222 void Win32DateFormat::adoptTimeZone(TimeZone *zoneToAdopt)
 223 {
 224     fZoneID = setTimeZoneInfo(fTZI, *zoneToAdopt);
 225     fCalendar->adoptTimeZone(zoneToAdopt);
 226 }
 227
 228 void Win32DateFormat::setTimeZone(const TimeZone& zone)
 229 {
 230     fZoneID = setTimeZoneInfo(fTZI, zone);
 231     fCalendar->setTimeZone(zone);
 232 }
 233
 234 static const DWORD dfFlags[] = {DATE_LONGDATE, DATE_LONGDATE, DATE_SHORTDATE, DATE_SHORTDATE};
 235
 236 void Win32DateFormat::formatDate(const SYSTEMTIME *st, UnicodeString &appendTo) const
 237 {
 238     int result;
 239     UChar stackBuffer[STACK_BUFFER_SIZE];
 240     UChar *buffer = stackBuffer;
 241
 242     result = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, STACK_BUFFER_SIZE);
 243
 244     if (result == 0) {
 245         if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 246             int newLength = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, NULL, 0);
 247
 248             buffer = NEW_ARRAY(UChar, newLength);
 249             GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, newLength);
 250         }
 251     }
 252
 253     appendTo.append(buffer, (int32_t) wcslen(buffer));
 254
 255     if (buffer != stackBuffer) {
 256         DELETE_ARRAY(buffer);
 257     }
 258 }
 259
 260 static const DWORD tfFlags[] = {0, 0, 0, TIME_NOSECONDS};
 261
 262 void Win32DateFormat::formatTime(const SYSTEMTIME *st, UnicodeString &appendTo) const
 263 {
 264     int result;
 265     UChar stackBuffer[STACK_BUFFER_SIZE];
 266     UChar *buffer = stackBuffer;
 267
 268     result = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, STACK_BUFFER_SIZE);
 269
 270     if (result == 0) {
 271         if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 272             int newLength = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, NULL, 0);
 273
 274             buffer = NEW_ARRAY(UChar, newLength);
 275             GetDateFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, newLength);
 276         }
 277     }
 278
 279     appendTo.append(buffer, (int32_t) wcslen(buffer));
 280
 281     if (buffer != stackBuffer) {
 282         DELETE_ARRAY(buffer);
 283     }
 284 }
 285
 286 UnicodeString Win32DateFormat::setTimeZoneInfo(TIME_ZONE_INFORMATION *tzi, const TimeZone &zone) const
 287 {
 288     UnicodeString zoneID;
 289
 290     zone.getID(zoneID);
 291
 292     if (zoneID.compare(fZoneID) != 0) {
 293         UnicodeString icuid;
 294
 295         zone.getID(icuid);
 296         if (! uprv_getWindowsTimeZoneInfo(tzi, icuid.getBuffer(), icuid.length())) {
 297             UBool found = FALSE;
 298             int32_t ec = TimeZone::countEquivalentIDs(icuid);
 299
 300             for (int z = 0; z < ec; z += 1) {
 301                 UnicodeString equiv = TimeZone::getEquivalentID(icuid, z);
 302
 303                 if (found = uprv_getWindowsTimeZoneInfo(tzi, equiv.getBuffer(), equiv.length())) {
 304                     break;
 305                 }
 306             }
 307
 308             if (! found) {
 309                 GetTimeZoneInformation(tzi);
 310             }
 311         }
 312     }
 313
 314     return zoneID;
 315 }
 316
 317 U_NAMESPACE_END
 318
 319 #endif /* #if !UCONFIG_NO_FORMATTING */
 320
 321 #endif // U_PLATFORM_HAS_WIN32_API
 322