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author | Kent Hansen <kent.hansen@nokia.com> | 2010-06-25 12:51:12 (GMT) |
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committer | Kent Hansen <kent.hansen@nokia.com> | 2010-06-25 14:22:34 (GMT) |
commit | 0fa3175421a3329fe4cb3fb9f79f30807105b02f (patch) | |
tree | 4e555026bc55f38e732ce77ab6a571549d6d91a8 /src/script/utils | |
parent | 860094d4e2614c0926f2af0e3538412ece31f726 (diff) | |
download | Qt-0fa3175421a3329fe4cb3fb9f79f30807105b02f.zip Qt-0fa3175421a3329fe4cb3fb9f79f30807105b02f.tar.gz Qt-0fa3175421a3329fe4cb3fb9f79f30807105b02f.tar.bz2 |
Fix conversion between JavaScript Date and QDateTime
Use JavaScriptCore's conversion functions rather than our own
(incomplete) implementation.
Specifically, this means daylight saving time is finally
handled correctly on Windows.
Task-number: QTBUG-9770
Reviewed-by: Olivier Goffart
Diffstat (limited to 'src/script/utils')
-rw-r--r-- | src/script/utils/qscriptdate.cpp | 365 | ||||
-rw-r--r-- | src/script/utils/qscriptdate_p.h | 52 | ||||
-rw-r--r-- | src/script/utils/utils.pri | 5 |
3 files changed, 0 insertions, 422 deletions
diff --git a/src/script/utils/qscriptdate.cpp b/src/script/utils/qscriptdate.cpp deleted file mode 100644 index 5980256..0000000 --- a/src/script/utils/qscriptdate.cpp +++ /dev/null @@ -1,365 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtScript module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL-ONLY$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qscriptdate_p.h" - -#include <QtCore/qnumeric.h> -#include <QtCore/qstringlist.h> - -#include <math.h> - -#ifndef Q_WS_WIN -# include <time.h> -# include <sys/time.h> -#else -# include <windows.h> -#endif - -QT_BEGIN_NAMESPACE - -namespace QScript { - -qsreal ToInteger(qsreal n); - -static const qsreal HoursPerDay = 24.0; -static const qsreal MinutesPerHour = 60.0; -static const qsreal SecondsPerMinute = 60.0; -static const qsreal msPerSecond = 1000.0; -static const qsreal msPerMinute = 60000.0; -static const qsreal msPerHour = 3600000.0; -static const qsreal msPerDay = 86400000.0; - -static qsreal LocalTZA = 0.0; // initialized at startup - -static inline qsreal TimeWithinDay(qsreal t) -{ - qsreal r = ::fmod(t, msPerDay); - return (r >= 0) ? r : r + msPerDay; -} - -static inline int HourFromTime(qsreal t) -{ - int r = int(::fmod(::floor(t / msPerHour), HoursPerDay)); - return (r >= 0) ? r : r + int(HoursPerDay); -} - -static inline int MinFromTime(qsreal t) -{ - int r = int(::fmod(::floor(t / msPerMinute), MinutesPerHour)); - return (r >= 0) ? r : r + int(MinutesPerHour); -} - -static inline int SecFromTime(qsreal t) -{ - int r = int(::fmod(::floor(t / msPerSecond), SecondsPerMinute)); - return (r >= 0) ? r : r + int(SecondsPerMinute); -} - -static inline int msFromTime(qsreal t) -{ - int r = int(::fmod(t, msPerSecond)); - return (r >= 0) ? r : r + int(msPerSecond); -} - -static inline qsreal Day(qsreal t) -{ - return ::floor(t / msPerDay); -} - -static inline qsreal DaysInYear(qsreal y) -{ - if (::fmod(y, 4)) - return 365; - - else if (::fmod(y, 100)) - return 366; - - else if (::fmod(y, 400)) - return 365; - - return 366; -} - -static inline qsreal DayFromYear(qsreal y) -{ - return 365 * (y - 1970) - + ::floor((y - 1969) / 4) - - ::floor((y - 1901) / 100) - + ::floor((y - 1601) / 400); -} - -static inline qsreal TimeFromYear(qsreal y) -{ - return msPerDay * DayFromYear(y); -} - -static inline qsreal YearFromTime(qsreal t) -{ - int y = 1970; - y += (int) ::floor(t / (msPerDay * 365.2425)); - - qsreal t2 = TimeFromYear(y); - return (t2 > t) ? y - 1 : ((t2 + msPerDay * DaysInYear(y)) <= t) ? y + 1 : y; -} - -static inline bool InLeapYear(qsreal t) -{ - qsreal x = DaysInYear(YearFromTime(t)); - if (x == 365) - return 0; - - Q_ASSERT (x == 366); - return 1; -} - -static inline qsreal DayWithinYear(qsreal t) -{ - return Day(t) - DayFromYear(YearFromTime(t)); -} - -static inline qsreal MonthFromTime(qsreal t) -{ - qsreal d = DayWithinYear(t); - qsreal l = InLeapYear(t); - - if (d < 31.0) - return 0; - - else if (d < 59.0 + l) - return 1; - - else if (d < 90.0 + l) - return 2; - - else if (d < 120.0 + l) - return 3; - - else if (d < 151.0 + l) - return 4; - - else if (d < 181.0 + l) - return 5; - - else if (d < 212.0 + l) - return 6; - - else if (d < 243.0 + l) - return 7; - - else if (d < 273.0 + l) - return 8; - - else if (d < 304.0 + l) - return 9; - - else if (d < 334.0 + l) - return 10; - - else if (d < 365.0 + l) - return 11; - - return qSNaN(); // ### assert? -} - -static inline qsreal DateFromTime(qsreal t) -{ - int m = (int) ToInteger(MonthFromTime(t)); - qsreal d = DayWithinYear(t); - qsreal l = InLeapYear(t); - - switch (m) { - case 0: return d + 1.0; - case 1: return d - 30.0; - case 2: return d - 58.0 - l; - case 3: return d - 89.0 - l; - case 4: return d - 119.0 - l; - case 5: return d - 150.0 - l; - case 6: return d - 180.0 - l; - case 7: return d - 211.0 - l; - case 8: return d - 242.0 - l; - case 9: return d - 272.0 - l; - case 10: return d - 303.0 - l; - case 11: return d - 333.0 - l; - } - - return qSNaN(); // ### assert -} - -static inline qsreal WeekDay(qsreal t) -{ - qsreal r = ::fmod (Day(t) + 4.0, 7.0); - return (r >= 0) ? r : r + 7.0; -} - - -static inline qsreal MakeTime(qsreal hour, qsreal min, qsreal sec, qsreal ms) -{ - return ((hour * MinutesPerHour + min) * SecondsPerMinute + sec) * msPerSecond + ms; -} - -static inline qsreal DayFromMonth(qsreal month, qsreal leap) -{ - switch ((int) month) { - case 0: return 0; - case 1: return 31.0; - case 2: return 59.0 + leap; - case 3: return 90.0 + leap; - case 4: return 120.0 + leap; - case 5: return 151.0 + leap; - case 6: return 181.0 + leap; - case 7: return 212.0 + leap; - case 8: return 243.0 + leap; - case 9: return 273.0 + leap; - case 10: return 304.0 + leap; - case 11: return 334.0 + leap; - } - - return qSNaN(); // ### assert? -} - -static qsreal MakeDay(qsreal year, qsreal month, qsreal day) -{ - year += ::floor(month / 12.0); - - month = ::fmod(month, 12.0); - if (month < 0) - month += 12.0; - - qsreal t = TimeFromYear(year); - qsreal leap = InLeapYear(t); - - day += ::floor(t / msPerDay); - day += DayFromMonth(month, leap); - - return day - 1; -} - -static inline qsreal MakeDate(qsreal day, qsreal time) -{ - return day * msPerDay + time; -} - -static inline qsreal DaylightSavingTA(double t) -{ -#ifndef Q_WS_WIN - long int tt = (long int)(t / msPerSecond); - struct tm *tmtm = localtime((const time_t*)&tt); - if (! tmtm) - return 0; - return (tmtm->tm_isdst > 0) ? msPerHour : 0; -#else - Q_UNUSED(t); - /// ### implement me - return 0; -#endif -} - -static inline qsreal LocalTime(qsreal t) -{ - return t + LocalTZA + DaylightSavingTA(t); -} - -static inline qsreal UTC(qsreal t) -{ - return t - LocalTZA - DaylightSavingTA(t - LocalTZA); -} - -static inline qsreal TimeClip(qsreal t) -{ - if (! qIsFinite(t) || fabs(t) > 8.64e15) - return qSNaN(); - return ToInteger(t); -} - -static qsreal getLocalTZA() -{ -#ifndef Q_WS_WIN - struct tm* t; - time_t curr; - time(&curr); - t = localtime(&curr); - time_t locl = mktime(t); - t = gmtime(&curr); - time_t globl = mktime(t); - return double(locl - globl) * 1000.0; -#else - TIME_ZONE_INFORMATION tzInfo; - GetTimeZoneInformation(&tzInfo); - return -tzInfo.Bias * 60.0 * 1000.0; -#endif -} - -/*! - \internal - - Converts the QDateTime \a dt to an ECMA Date value (in UTC form). -*/ -qsreal FromDateTime(const QDateTime &dt) -{ - if (!dt.isValid()) - return qSNaN(); - if (!LocalTZA) // ### move - LocalTZA = getLocalTZA(); - QDate date = dt.date(); - QTime taim = dt.time(); - int year = date.year(); - int month = date.month() - 1; - int day = date.day(); - int hours = taim.hour(); - int mins = taim.minute(); - int secs = taim.second(); - int ms = taim.msec(); - double t = MakeDate(MakeDay(year, month, day), - MakeTime(hours, mins, secs, ms)); - if (dt.timeSpec() == Qt::LocalTime) - t = UTC(t); - return TimeClip(t); -} - -/*! - \internal - - Converts the ECMA Date value \tt (in UTC form) to QDateTime - according to \a spec. -*/ -QDateTime ToDateTime(qsreal t, Qt::TimeSpec spec) -{ - if (qIsNaN(t)) - return QDateTime(); - if (!LocalTZA) // ### move - LocalTZA = getLocalTZA(); - if (spec == Qt::LocalTime) - t = LocalTime(t); - int year = int(YearFromTime(t)); - int month = int(MonthFromTime(t) + 1); - int day = int(DateFromTime(t)); - int hours = HourFromTime(t); - int mins = MinFromTime(t); - int secs = SecFromTime(t); - int ms = msFromTime(t); - return QDateTime(QDate(year, month, day), QTime(hours, mins, secs, ms), spec); -} - -} // namespace QScript - -QT_END_NAMESPACE diff --git a/src/script/utils/qscriptdate_p.h b/src/script/utils/qscriptdate_p.h deleted file mode 100644 index b9c9fd4..0000000 --- a/src/script/utils/qscriptdate_p.h +++ /dev/null @@ -1,52 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtScript module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL-ONLY$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QSCRIPTDATE_P_H -#define QSCRIPTDATE_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/qdatetime.h> - -QT_BEGIN_NAMESPACE - -typedef double qsreal; - -namespace QScript -{ - qsreal FromDateTime(const QDateTime &dt); - QDateTime ToDateTime(qsreal t, Qt::TimeSpec spec); -} - -QT_END_NAMESPACE - -#endif diff --git a/src/script/utils/utils.pri b/src/script/utils/utils.pri deleted file mode 100644 index d8302d5..0000000 --- a/src/script/utils/utils.pri +++ /dev/null @@ -1,5 +0,0 @@ -SOURCES += \ - $$PWD/qscriptdate.cpp - -HEADERS += \ - $$PWD/qscriptdate_p.h |