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authorLiang Qi <liang.qi@theqtcompany.com>2016-03-21 09:02:57 +0100
committerLiang Qi <liang.qi@theqtcompany.com>2016-03-21 09:02:57 +0100
commit6cb8121a44ee0f94f2c9fcb075d1d3c802d8c5c7 (patch)
tree25822898b71068f820d25a9e8372dfb348190ec1 /src/corelib/tools/qtimezoneprivate_win.cpp
parent96740193e1e0f0608f67660811a44b696924ad4c (diff)
parent2e02de165115c9d67ac343ff0960ed80f9c09bc8 (diff)
Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts: src/widgets/styles/qgtkstyle_p.cpp tests/auto/corelib/io/qtextstream/test/test.pro tests/auto/corelib/plugin/plugin.pro Change-Id: I512bc1b36acf3933ed2b96c00f476ee3819c1f4b
Diffstat (limited to 'src/corelib/tools/qtimezoneprivate_win.cpp')
-rw-r--r--src/corelib/tools/qtimezoneprivate_win.cpp100
1 files changed, 99 insertions, 1 deletions
diff --git a/src/corelib/tools/qtimezoneprivate_win.cpp b/src/corelib/tools/qtimezoneprivate_win.cpp
index 1d19f01b4e..f84b66fa99 100644
--- a/src/corelib/tools/qtimezoneprivate_win.cpp
+++ b/src/corelib/tools/qtimezoneprivate_win.cpp
@@ -48,6 +48,10 @@
QT_BEGIN_NAMESPACE
+#ifndef Q_OS_WINRT
+#define QT_USE_REGISTRY_TIMEZONE 1
+#endif
+
/*
Private
@@ -65,9 +69,10 @@ QT_BEGIN_NAMESPACE
// Vista introduced support for historic data, see MSDN docs on DYNAMIC_TIME_ZONE_INFORMATION
// http://msdn.microsoft.com/en-gb/library/windows/desktop/ms724253%28v=vs.85%29.aspx
-
+#ifdef QT_USE_REGISTRY_TIMEZONE
static const char tzRegPath[] = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones";
static const char currTzRegPath[] = "SYSTEM\\CurrentControlSet\\Control\\TimeZoneInformation";
+#endif
enum {
MIN_YEAR = -292275056,
@@ -129,6 +134,7 @@ static bool equalTzi(const TIME_ZONE_INFORMATION &tzi1, const TIME_ZONE_INFORMAT
&& wcscmp(tzi1.DaylightName, tzi2.DaylightName) == 0);
}
+#ifdef QT_USE_REGISTRY_TIMEZONE
static bool openRegistryKey(const QString &keyPath, HKEY *key)
{
return (RegOpenKeyEx(HKEY_LOCAL_MACHINE, (const wchar_t*)keyPath.utf16(), 0, KEY_READ, key)
@@ -203,9 +209,61 @@ static TIME_ZONE_INFORMATION getRegistryTzi(const QByteArray &windowsId, bool *o
return tzi;
}
+#else // QT_USE_REGISTRY_TIMEZONE
+struct QWinDynamicTimeZone
+{
+ QString standardName;
+ QString daylightName;
+ QString timezoneName;
+ qint32 bias;
+ bool daylightTime;
+};
+
+typedef QHash<QByteArray, QWinDynamicTimeZone> QWinRTTimeZoneHash;
+
+Q_GLOBAL_STATIC(QWinRTTimeZoneHash, gTimeZones)
+
+static void enumerateTimeZones()
+{
+ DYNAMIC_TIME_ZONE_INFORMATION dtzInfo;
+ quint32 index = 0;
+ QString prevTimeZoneKeyName;
+ while (SUCCEEDED(EnumDynamicTimeZoneInformation(index++, &dtzInfo))) {
+ QWinDynamicTimeZone item;
+ item.timezoneName = QString::fromWCharArray(dtzInfo.TimeZoneKeyName);
+ // As soon as key name repeats, break. Some systems continue to always
+ // return the last item independent of index being out of range
+ if (item.timezoneName == prevTimeZoneKeyName)
+ break;
+ item.standardName = QString::fromWCharArray(dtzInfo.StandardName);
+ item.daylightName = QString::fromWCharArray(dtzInfo.DaylightName);
+ item.daylightTime = !dtzInfo.DynamicDaylightTimeDisabled;
+ item.bias = dtzInfo.Bias;
+ gTimeZones->insert(item.timezoneName.toUtf8(), item);
+ prevTimeZoneKeyName = item.timezoneName;
+ }
+}
+
+static DYNAMIC_TIME_ZONE_INFORMATION dynamicInfoForId(const QByteArray &windowsId)
+{
+ DYNAMIC_TIME_ZONE_INFORMATION dtzInfo;
+ quint32 index = 0;
+ QString prevTimeZoneKeyName;
+ while (SUCCEEDED(EnumDynamicTimeZoneInformation(index++, &dtzInfo))) {
+ const QString timeZoneName = QString::fromWCharArray(dtzInfo.TimeZoneKeyName);
+ if (timeZoneName == QLatin1String(windowsId))
+ break;
+ if (timeZoneName == prevTimeZoneKeyName)
+ break;
+ prevTimeZoneKeyName = timeZoneName;
+ }
+ return dtzInfo;
+}
+#endif // QT_USE_REGISTRY_TIMEZONE
static QList<QByteArray> availableWindowsIds()
{
+#ifdef QT_USE_REGISTRY_TIMEZONE
// TODO Consider caching results in a global static, very unlikely to change.
QList<QByteArray> list;
HKEY key = NULL;
@@ -223,10 +281,16 @@ static QList<QByteArray> availableWindowsIds()
RegCloseKey(key);
}
return list;
+#else // QT_USE_REGISTRY_TIMEZONE
+ if (gTimeZones->isEmpty())
+ enumerateTimeZones();
+ return gTimeZones->keys();
+#endif // QT_USE_REGISTRY_TIMEZONE
}
static QByteArray windowsSystemZoneId()
{
+#ifdef QT_USE_REGISTRY_TIMEZONE
// On Vista and later is held in the value TimeZoneKeyName in key currTzRegPath
QString id;
HKEY key = NULL;
@@ -248,6 +312,11 @@ static QByteArray windowsSystemZoneId()
if (equalTzi(getRegistryTzi(winId, &ok), sysTzi))
return winId;
}
+#else // QT_USE_REGISTRY_TIMEZONE
+ DYNAMIC_TIME_ZONE_INFORMATION dtzi;
+ if (SUCCEEDED(GetDynamicTimeZoneInformation(&dtzi)))
+ return QString::fromWCharArray(dtzi.TimeZoneKeyName).toLocal8Bit();
+#endif // QT_USE_REGISTRY_TIMEZONE
// If we can't determine the current ID use UTC
return QTimeZonePrivate::utcQByteArray();
@@ -368,6 +437,7 @@ void QWinTimeZonePrivate::init(const QByteArray &ianaId)
}
if (!m_windowsId.isEmpty()) {
+#ifdef QT_USE_REGISTRY_TIMEZONE
// Open the base TZI for the time zone
HKEY baseKey = NULL;
const QString baseKeyPath = QString::fromUtf8(tzRegPath) + QLatin1Char('\\')
@@ -404,6 +474,34 @@ void QWinTimeZonePrivate::init(const QByteArray &ianaId)
}
RegCloseKey(baseKey);
}
+#else // QT_USE_REGISTRY_TIMEZONE
+ if (gTimeZones->isEmpty())
+ enumerateTimeZones();
+ QWinRTTimeZoneHash::const_iterator it = gTimeZones->find(m_windowsId);
+ if (it != gTimeZones->constEnd()) {
+ m_displayName = it->timezoneName;
+ m_standardName = it->standardName;
+ m_daylightName = it->daylightName;
+ DWORD firstYear = 0;
+ DWORD lastYear = 0;
+ DYNAMIC_TIME_ZONE_INFORMATION dtzi = dynamicInfoForId(m_windowsId);
+ GetDynamicTimeZoneInformationEffectiveYears(&dtzi, &firstYear, &lastYear);
+ // If there is no dynamic information, you can still query for
+ // year 0, which helps simplifying following part
+ for (DWORD year = firstYear; year <= lastYear; ++year) {
+ TIME_ZONE_INFORMATION tzi;
+ if (!GetTimeZoneInformationForYear(year, &dtzi, &tzi))
+ continue;
+ QWinTransitionRule rule;
+ rule.standardTimeBias = tzi.Bias + tzi.StandardBias;
+ rule.daylightTimeBias = tzi.Bias + tzi.DaylightBias - rule.standardTimeBias;
+ rule.standardTimeRule = tzi.StandardDate;
+ rule.daylightTimeRule = tzi.DaylightDate;
+ rule.startYear = year;
+ m_tranRules.append(rule);
+ }
+ }
+#endif // QT_USE_REGISTRY_TIMEZONE
}
// If there are no rules then we failed to find a windowsId or any tzi info