icuSources/i18n/windtfmt.cpp

   1 /*
   2 ********************************************************************************
   3 *   Copyright (C) 2005-2011, 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;
 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 // U_PLATFORM_HAS_WIN32_API
 321