280 lines
9.9 KiB
Plaintext
280 lines
9.9 KiB
Plaintext
/****************************************************************************
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**
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** Copyright (C) 2013 John Layt <jlayt@kde.org>
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qtimezone.h"
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#include "qtimezoneprivate_p.h"
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#include "private/qcore_mac_p.h"
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#include "qstringlist.h"
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#include <Foundation/NSTimeZone.h>
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#include <qdebug.h>
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QT_BEGIN_NAMESPACE
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/*
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Private
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OS X system implementation
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*/
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// Create the system default time zone
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QMacTimeZonePrivate::QMacTimeZonePrivate()
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{
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init(systemTimeZoneId());
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}
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// Create a named time zone
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QMacTimeZonePrivate::QMacTimeZonePrivate(const QByteArray &ianaId)
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: m_nstz(0)
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{
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init(ianaId);
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}
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QMacTimeZonePrivate::QMacTimeZonePrivate(const QMacTimeZonePrivate &other)
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: QTimeZonePrivate(other), m_nstz(0)
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{
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m_nstz = [other.m_nstz copy];
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}
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QMacTimeZonePrivate::~QMacTimeZonePrivate()
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{
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[m_nstz release];
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}
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QTimeZonePrivate *QMacTimeZonePrivate::clone()
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{
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return new QMacTimeZonePrivate(*this);
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}
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void QMacTimeZonePrivate::init(const QByteArray &ianaId)
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{
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if (availableTimeZoneIds().contains(ianaId)) {
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m_nstz = [NSTimeZone timeZoneWithName:QCFString::toNSString(QString::fromUtf8(ianaId))];
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if (m_nstz)
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m_id = ianaId;
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}
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}
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QString QMacTimeZonePrivate::comment() const
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{
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return QCFString::toQString([m_nstz description]);
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}
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QString QMacTimeZonePrivate::displayName(QTimeZone::TimeType timeType,
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QTimeZone::NameType nameType,
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const QLocale &locale) const
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{
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// TODO Mac doesn't support OffsetName yet so use standard offset name
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if (nameType == QTimeZone::OffsetName) {
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const Data nowData = data(QDateTime::currentDateTimeUtc().toMSecsSinceEpoch());
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// TODO Cheat for now, assume if has dst the offset if 1 hour
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if (timeType == QTimeZone::DaylightTime && hasDaylightTime())
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return isoOffsetFormat(nowData.standardTimeOffset + 3600);
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else
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return isoOffsetFormat(nowData.standardTimeOffset);
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}
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NSTimeZoneNameStyle style = NSTimeZoneNameStyleStandard;
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switch (nameType) {
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case QTimeZone::ShortName :
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if (timeType == QTimeZone::DaylightTime)
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style = NSTimeZoneNameStyleShortDaylightSaving;
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else if (timeType == QTimeZone::GenericTime)
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style = NSTimeZoneNameStyleShortGeneric;
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else
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style = NSTimeZoneNameStyleShortStandard;
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break;
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case QTimeZone::DefaultName :
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case QTimeZone::LongName :
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if (timeType == QTimeZone::DaylightTime)
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style = NSTimeZoneNameStyleDaylightSaving;
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else if (timeType == QTimeZone::GenericTime)
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style = NSTimeZoneNameStyleGeneric;
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else
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style = NSTimeZoneNameStyleStandard;
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break;
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case QTimeZone::OffsetName :
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// Unreachable
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break;
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}
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NSString *macLocaleCode = QCFString::toNSString(locale.name());
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NSLocale *macLocale = [[NSLocale alloc] initWithLocaleIdentifier:macLocaleCode];
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const QString result = QCFString::toQString([m_nstz localizedName:style locale:macLocale]);
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[macLocaleCode release];
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[macLocale release];
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return result;
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}
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QString QMacTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const
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{
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const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0;
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return QCFString::toQString([m_nstz abbreviationForDate:[NSDate dateWithTimeIntervalSince1970:seconds]]);
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}
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int QMacTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const
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{
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const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0;
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return [m_nstz secondsFromGMTForDate:[NSDate dateWithTimeIntervalSince1970:seconds]];
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}
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int QMacTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const
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{
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return offsetFromUtc(atMSecsSinceEpoch) - daylightTimeOffset(atMSecsSinceEpoch);
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}
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int QMacTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const
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{
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const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0;
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return [m_nstz daylightSavingTimeOffsetForDate:[NSDate dateWithTimeIntervalSince1970:seconds]];
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}
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bool QMacTimeZonePrivate::hasDaylightTime() const
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{
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// TODO No Mac API, assume if has transitions
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return hasTransitions();
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}
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bool QMacTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const
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{
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const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0;
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return [m_nstz isDaylightSavingTimeForDate:[NSDate dateWithTimeIntervalSince1970:seconds]];
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}
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QTimeZonePrivate::Data QMacTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const
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{
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const NSTimeInterval seconds = forMSecsSinceEpoch / 1000.0;
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NSDate *date = [NSDate dateWithTimeIntervalSince1970:seconds];
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Data data;
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data.atMSecsSinceEpoch = forMSecsSinceEpoch;
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data.offsetFromUtc = [m_nstz secondsFromGMTForDate:date];
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data.daylightTimeOffset = [m_nstz daylightSavingTimeOffsetForDate:date];
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data.standardTimeOffset = data.offsetFromUtc - data.daylightTimeOffset;
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data.abbreviation = QCFString::toQString([m_nstz abbreviationForDate:date]);
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[date release];
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return data;
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}
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bool QMacTimeZonePrivate::hasTransitions() const
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{
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// TODO No direct Mac API, so return if has next after 1970, i.e. since start of tz
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// TODO Not sure what is returned in event of no transitions, assume will be before requested date
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NSDate *epoch = [NSDate dateWithTimeIntervalSince1970:0];
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const NSDate *date = [m_nstz nextDaylightSavingTimeTransitionAfterDate:epoch];
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const bool result = ([date timeIntervalSince1970] > [epoch timeIntervalSince1970]);
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[epoch release];
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[date release];
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return result;
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}
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QTimeZonePrivate::Data QMacTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const
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{
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QTimeZonePrivate::Data tran;
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const NSTimeInterval seconds = afterMSecsSinceEpoch / 1000.0;
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NSDate *nextDate = [NSDate dateWithTimeIntervalSince1970:seconds];
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nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate];
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const NSTimeInterval nextSecs = [nextDate timeIntervalSince1970];
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if (nextDate == nil || nextSecs <= seconds) {
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[nextDate release];
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return invalidData();
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}
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tran.atMSecsSinceEpoch = nextSecs * 1000;
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tran.offsetFromUtc = [m_nstz secondsFromGMTForDate:nextDate];
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tran.daylightTimeOffset = [m_nstz daylightSavingTimeOffsetForDate:nextDate];
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tran.standardTimeOffset = tran.offsetFromUtc - tran.daylightTimeOffset;
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tran.abbreviation = QCFString::toQString([m_nstz abbreviationForDate:nextDate]);
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[nextDate release];
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return tran;
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}
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QTimeZonePrivate::Data QMacTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const
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{
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// No direct Mac API, so get all transitions since epoch and return the last one
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QList<int> secsList;
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if (beforeMSecsSinceEpoch > 0) {
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const int endSecs = beforeMSecsSinceEpoch / 1000.0;
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NSTimeInterval prevSecs = 0;
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NSTimeInterval nextSecs = 0;
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NSDate *nextDate = [NSDate dateWithTimeIntervalSince1970:nextSecs];
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// If invalid may return a nil date or an Epoch date
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nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate];
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nextSecs = [nextDate timeIntervalSince1970];
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while (nextDate != nil && nextSecs > prevSecs && nextSecs < endSecs) {
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secsList.append(nextSecs);
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prevSecs = nextSecs;
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nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate];
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nextSecs = [nextDate timeIntervalSince1970];
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}
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[nextDate release];
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}
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if (secsList.size() >= 1)
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return data(qint64(secsList.last()) * 1000);
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else
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return invalidData();
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}
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QByteArray QMacTimeZonePrivate::systemTimeZoneId() const
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{
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// Reset the cached system tz then return the name
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[NSTimeZone resetSystemTimeZone];
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return QCFString::toQString([[NSTimeZone systemTimeZone] name]).toUtf8();
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}
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QSet<QByteArray> QMacTimeZonePrivate::availableTimeZoneIds() const
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{
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NSEnumerator *enumerator = [[NSTimeZone knownTimeZoneNames] objectEnumerator];
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QByteArray tzid = QCFString::toQString([enumerator nextObject]).toUtf8();
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QSet<QByteArray> set;
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while (!tzid.isEmpty()) {
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set << tzid;
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tzid = QCFString::toQString([enumerator nextObject]).toUtf8();
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}
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[enumerator release];
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return set;
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}
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QT_END_NAMESPACE
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