summaryrefslogtreecommitdiffstats
path: root/intl/icu/source/i18n/windtfmt.cpp
blob: 10243a702b7b445cab847fbae79890be6d40df1d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
// Copyright (C) 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
********************************************************************************
*   Copyright (C) 2005-2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
********************************************************************************
*
* File WINDTFMT.CPP
*
********************************************************************************
*/

#include "unicode/utypes.h"

#if U_PLATFORM_HAS_WIN32_API

#if !UCONFIG_NO_FORMATTING

#include "unicode/ures.h"
#include "unicode/format.h"
#include "unicode/fmtable.h"
#include "unicode/datefmt.h"
#include "unicode/simpleformatter.h"
#include "unicode/calendar.h"
#include "unicode/gregocal.h"
#include "unicode/locid.h"
#include "unicode/unistr.h"
#include "unicode/ustring.h"
#include "unicode/timezone.h"
#include "unicode/utmscale.h"

#include "cmemory.h"
#include "uresimp.h"
#include "windtfmt.h"
#include "wintzimpl.h"

#   define WIN32_LEAN_AND_MEAN
#   define VC_EXTRALEAN
#   define NOUSER
#   define NOSERVICE
#   define NOIME
#   define NOMCX
#include <windows.h>

U_NAMESPACE_BEGIN

UOBJECT_DEFINE_RTTI_IMPLEMENTATION(Win32DateFormat)

#define NEW_ARRAY(type,count) (type *) uprv_malloc((count) * sizeof(type))
#define DELETE_ARRAY(array) uprv_free((void *) (array))

#define STACK_BUFFER_SIZE 64

UnicodeString* Win32DateFormat::getTimeDateFormat(const Calendar *cal, const Locale *locale, UErrorCode &status) const
{
    UnicodeString *result = NULL;
    const char *type = cal->getType();
    const char *base = locale->getBaseName();
    UResourceBundle *topBundle = ures_open((char *) 0, base, &status);
    UResourceBundle *calBundle = ures_getByKey(topBundle, "calendar", NULL, &status);
    UResourceBundle *typBundle = ures_getByKeyWithFallback(calBundle, type, NULL, &status);
    UResourceBundle *patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", NULL, &status);

    if (status == U_MISSING_RESOURCE_ERROR) {
        status = U_ZERO_ERROR;
        typBundle = ures_getByKeyWithFallback(calBundle, "gregorian", typBundle, &status);
        patBundle = ures_getByKeyWithFallback(typBundle, "DateTimePatterns", patBundle, &status);
    }

    if (U_FAILURE(status)) {
        static const UChar defaultPattern[] = {0x007B, 0x0031, 0x007D, 0x0020, 0x007B, 0x0030, 0x007D, 0x0000}; // "{1} {0}"
        return new UnicodeString(defaultPattern, UPRV_LENGTHOF(defaultPattern));
    }

    int32_t resStrLen = 0;
    int32_t glueIndex = DateFormat::kDateTime;
    int32_t patSize = ures_getSize(patBundle);
    if (patSize >= (DateFormat::kDateTimeOffset + DateFormat::kShort + 1)) {
        // Get proper date time format
        glueIndex = (int32_t)(DateFormat::kDateTimeOffset + (fDateStyle - DateFormat::kDateOffset));
    }
    const UChar *resStr = ures_getStringByIndex(patBundle, glueIndex, &resStrLen, &status);

    result = new UnicodeString(TRUE, resStr, resStrLen);

    ures_close(patBundle);
    ures_close(typBundle);
    ures_close(calBundle);
    ures_close(topBundle);

    return result;
}

// TODO: Range-check timeStyle, dateStyle
Win32DateFormat::Win32DateFormat(DateFormat::EStyle timeStyle, DateFormat::EStyle dateStyle, const Locale &locale, UErrorCode &status)
  : DateFormat(), fDateTimeMsg(NULL), fTimeStyle(timeStyle), fDateStyle(dateStyle), fLocale(locale), fZoneID()
{
    if (U_SUCCESS(status)) {
        fLCID = locale.getLCID();
        fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
        uprv_memset(fTZI, 0, sizeof(TIME_ZONE_INFORMATION));
        adoptCalendar(Calendar::createInstance(locale, status));
    }
}

Win32DateFormat::Win32DateFormat(const Win32DateFormat &other)
  : DateFormat(other)
{
    *this = other;
}

Win32DateFormat::~Win32DateFormat()
{
//    delete fCalendar;
    uprv_free(fTZI);
    delete fDateTimeMsg;
}

Win32DateFormat &Win32DateFormat::operator=(const Win32DateFormat &other)
{
    // The following handles fCalendar
    DateFormat::operator=(other);

//    delete fCalendar;

    this->fDateTimeMsg = other.fDateTimeMsg == NULL ? NULL : new UnicodeString(*other.fDateTimeMsg);
    this->fTimeStyle   = other.fTimeStyle;
    this->fDateStyle   = other.fDateStyle;
    this->fLocale      = other.fLocale;
    this->fLCID        = other.fLCID;
//    this->fCalendar    = other.fCalendar->clone();
    this->fZoneID      = other.fZoneID;

    this->fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
    *this->fTZI = *other.fTZI;

    return *this;
}

Format *Win32DateFormat::clone(void) const
{
    return new Win32DateFormat(*this);
}

// TODO: Is just ignoring pos the right thing?
UnicodeString &Win32DateFormat::format(Calendar &cal, UnicodeString &appendTo, FieldPosition &pos) const
{
    FILETIME ft;
    SYSTEMTIME st_gmt;
    SYSTEMTIME st_local;
    TIME_ZONE_INFORMATION tzi = *fTZI;
    UErrorCode status = U_ZERO_ERROR;
    const TimeZone &tz = cal.getTimeZone();
    int64_t uct, uft;

    setTimeZoneInfo(&tzi, tz);

    uct = utmscale_fromInt64((int64_t) cal.getTime(status), UDTS_ICU4C_TIME, &status);
    uft = utmscale_toInt64(uct, UDTS_WINDOWS_FILE_TIME, &status);

    ft.dwLowDateTime =  (DWORD) (uft & 0xFFFFFFFF);
    ft.dwHighDateTime = (DWORD) ((uft >> 32) & 0xFFFFFFFF);

    FileTimeToSystemTime(&ft, &st_gmt);
    SystemTimeToTzSpecificLocalTime(&tzi, &st_gmt, &st_local);


    if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
        UnicodeString date;
        UnicodeString time;
        UnicodeString *pattern = fDateTimeMsg;

        formatDate(&st_local, date);
        formatTime(&st_local, time);

        if (strcmp(fCalendar->getType(), cal.getType()) != 0) {
            pattern = getTimeDateFormat(&cal, &fLocale, status);
        }

        SimpleFormatter(*pattern, 2, 2, status).format(time, date, appendTo, status);
    } else if (fDateStyle != DateFormat::kNone) {
        formatDate(&st_local, appendTo);
    } else if (fTimeStyle != DateFormat::kNone) {
        formatTime(&st_local, appendTo);
    }

    return appendTo;
}

void Win32DateFormat::parse(const UnicodeString& text, Calendar& cal, ParsePosition& pos) const
{
    pos.setErrorIndex(pos.getIndex());
}

void Win32DateFormat::adoptCalendar(Calendar *newCalendar)
{
    if (fCalendar == NULL || strcmp(fCalendar->getType(), newCalendar->getType()) != 0) {
        UErrorCode status = U_ZERO_ERROR;

        if (fDateStyle != DateFormat::kNone && fTimeStyle != DateFormat::kNone) {
            delete fDateTimeMsg;
            fDateTimeMsg = getTimeDateFormat(newCalendar, &fLocale, status);
        }
    }

    delete fCalendar;
    fCalendar = newCalendar;

    fZoneID = setTimeZoneInfo(fTZI, fCalendar->getTimeZone());
}

void Win32DateFormat::setCalendar(const Calendar &newCalendar)
{
    adoptCalendar(newCalendar.clone());
}

void Win32DateFormat::adoptTimeZone(TimeZone *zoneToAdopt)
{
    fZoneID = setTimeZoneInfo(fTZI, *zoneToAdopt);
    fCalendar->adoptTimeZone(zoneToAdopt);
}

void Win32DateFormat::setTimeZone(const TimeZone& zone)
{
    fZoneID = setTimeZoneInfo(fTZI, zone);
    fCalendar->setTimeZone(zone);
}

static const DWORD dfFlags[] = {DATE_LONGDATE, DATE_LONGDATE, DATE_SHORTDATE, DATE_SHORTDATE};

void Win32DateFormat::formatDate(const SYSTEMTIME *st, UnicodeString &appendTo) const
{
    int result;
    wchar_t stackBuffer[STACK_BUFFER_SIZE];
    wchar_t *buffer = stackBuffer;

    result = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, STACK_BUFFER_SIZE);

    if (result == 0) {
        if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
            int newLength = GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, NULL, 0);

            buffer = NEW_ARRAY(wchar_t, newLength);
            GetDateFormatW(fLCID, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, newLength);
        }
    }

    appendTo.append((const UChar *)buffer, (int32_t) wcslen(buffer));

    if (buffer != stackBuffer) {
        DELETE_ARRAY(buffer);
    }
}

static const DWORD tfFlags[] = {0, 0, 0, TIME_NOSECONDS};

void Win32DateFormat::formatTime(const SYSTEMTIME *st, UnicodeString &appendTo) const
{
    int result;
    wchar_t stackBuffer[STACK_BUFFER_SIZE];
    wchar_t *buffer = stackBuffer;

    result = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, STACK_BUFFER_SIZE);

    if (result == 0) {
        if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
            int newLength = GetTimeFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, NULL, 0);

            buffer = NEW_ARRAY(wchar_t, newLength);
            GetDateFormatW(fLCID, tfFlags[fTimeStyle], st, NULL, buffer, newLength);
        }
    }

    appendTo.append((const UChar *)buffer, (int32_t) wcslen(buffer));

    if (buffer != stackBuffer) {
        DELETE_ARRAY(buffer);
    }
}

UnicodeString Win32DateFormat::setTimeZoneInfo(TIME_ZONE_INFORMATION *tzi, const TimeZone &zone) const
{
    UnicodeString zoneID;

    zone.getID(zoneID);

    if (zoneID.compare(fZoneID) != 0) {
        UnicodeString icuid;

        zone.getID(icuid);
        if (! uprv_getWindowsTimeZoneInfo(tzi, icuid.getBuffer(), icuid.length())) {
            UBool found = FALSE;
            int32_t ec = TimeZone::countEquivalentIDs(icuid);

            for (int z = 0; z < ec; z += 1) {
                UnicodeString equiv = TimeZone::getEquivalentID(icuid, z);

                if (found = uprv_getWindowsTimeZoneInfo(tzi, equiv.getBuffer(), equiv.length())) {
                    break;
                }
            }

            if (! found) {
                GetTimeZoneInformation(tzi);
            }
        }
    }

    return zoneID;
}

U_NAMESPACE_END

#endif /* #if !UCONFIG_NO_FORMATTING */

#endif // U_PLATFORM_HAS_WIN32_API