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// © 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_USES_ONLY_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"
#ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
#endif
# 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: This is copied in both winnmfmt.cpp and windtfmt.cpp, but really should
// be factored out into a common helper for both.
static UErrorCode GetEquivalentWindowsLocaleName(const Locale& locale, UnicodeString** buffer)
{
UErrorCode status = U_ZERO_ERROR;
char asciiBCP47Tag[LOCALE_NAME_MAX_LENGTH] = {};
// Convert from names like "en_CA" and "de_DE@collation=phonebook" to "en-CA" and "de-DE-u-co-phonebk".
(void)uloc_toLanguageTag(locale.getName(), asciiBCP47Tag, UPRV_LENGTHOF(asciiBCP47Tag), FALSE, &status);
if (U_SUCCESS(status))
{
// Need it to be UTF-16, not 8-bit
// TODO: This seems like a good thing for a helper
wchar_t bcp47Tag[LOCALE_NAME_MAX_LENGTH] = {};
int32_t i;
for (i = 0; i < UPRV_LENGTHOF(bcp47Tag); i++)
{
if (asciiBCP47Tag[i] == '\0')
{
break;
}
else
{
// normally just copy the character
bcp47Tag[i] = static_cast<wchar_t>(asciiBCP47Tag[i]);
}
}
// Ensure it's null terminated
if (i < (UPRV_LENGTHOF(bcp47Tag) - 1))
{
bcp47Tag[i] = L'\0';
}
else
{
// Ran out of room.
bcp47Tag[UPRV_LENGTHOF(bcp47Tag) - 1] = L'\0';
}
wchar_t windowsLocaleName[LOCALE_NAME_MAX_LENGTH] = {};
// Note: On Windows versions below 10, there is no support for locale name aliases.
// This means that it will fail for locales where ICU has a completely different
// name (like ku vs ckb), and it will also not work for alternate sort locale
// names like "de-DE-u-co-phonebk".
// TODO: We could add some sort of exception table for cases like ku vs ckb.
int length = ResolveLocaleName(bcp47Tag, windowsLocaleName, UPRV_LENGTHOF(windowsLocaleName));
if (length > 0)
{
*buffer = new UnicodeString(windowsLocaleName);
}
else
{
status = U_UNSUPPORTED_ERROR;
}
}
return status;
}
// 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(), fWindowsLocaleName(nullptr)
{
if (U_SUCCESS(status)) {
GetEquivalentWindowsLocaleName(locale, &fWindowsLocaleName);
// Note: In the previous code, it would look up the LCID for the locale, and if
// the locale was not recognized then it would get an LCID of 0, which is a
// synonym for LOCALE_USER_DEFAULT on Windows.
// If the above method fails, then fWindowsLocaleName will remain as nullptr, and
// then we will pass nullptr to API GetLocaleInfoEx, which is the same as passing
// LOCALE_USER_DEFAULT.
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;
delete fWindowsLocaleName;
}
Win32DateFormat &Win32DateFormat::operator=(const Win32DateFormat &other)
{
if (this == &other) { return *this; } // self-assignment: no-op
// 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->fCalendar = other.fCalendar->clone();
this->fZoneID = other.fZoneID;
this->fTZI = NEW_ARRAY(TIME_ZONE_INFORMATION, 1);
*this->fTZI = *other.fTZI;
this->fWindowsLocaleName = other.fWindowsLocaleName == NULL ? NULL : new UnicodeString(*other.fWindowsLocaleName);
return *this;
}
Win32DateFormat *Win32DateFormat::clone() 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=0;
wchar_t stackBuffer[STACK_BUFFER_SIZE];
wchar_t *buffer = stackBuffer;
const wchar_t *localeName = nullptr;
if (fWindowsLocaleName != nullptr)
{
localeName = reinterpret_cast<const wchar_t*>(toOldUCharPtr(fWindowsLocaleName->getTerminatedBuffer()));
}
result = GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, STACK_BUFFER_SIZE, NULL);
if (result == 0) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
int newLength = GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, NULL, NULL, 0, NULL);
buffer = NEW_ARRAY(wchar_t, newLength);
GetDateFormatEx(localeName, dfFlags[fDateStyle - kDateOffset], st, NULL, buffer, newLength, NULL);
}
}
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;
const wchar_t *localeName = nullptr;
if (fWindowsLocaleName != nullptr)
{
localeName = reinterpret_cast<const wchar_t*>(toOldUCharPtr(fWindowsLocaleName->getTerminatedBuffer()));
}
result = GetTimeFormatEx(localeName, tfFlags[fTimeStyle], st, NULL, buffer, STACK_BUFFER_SIZE);
if (result == 0) {
if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
int newLength = GetTimeFormatEx(localeName, tfFlags[fTimeStyle], st, NULL, NULL, 0);
buffer = NEW_ARRAY(wchar_t, newLength);
GetTimeFormatEx(localeName, 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);
found = uprv_getWindowsTimeZoneInfo(tzi, equiv.getBuffer(), equiv.length());
if (found) {
break;
}
}
if (! found) {
GetTimeZoneInformation(tzi);
}
}
}
return zoneID;
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif // U_PLATFORM_USES_ONLY_WIN32_API