Commit Graph

103 Commits

Author SHA1 Message Date
Edward Welbourne
45ae0cb780 Remove a mis-placed QSKIP().
It made us skip the rest of the test, not just the small set of
sub-tests that were conditioned by the if () in whose else it sat.

Change-Id: I5e914e0aeb9d5ba44b21966d071aaccbc590365d
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-02-26 09:22:35 +00:00
Edward Welbourne
2736d7921d Don't let a good day cause date-time parser to forget a conflict.
Setting conflicts to isSet & DaySection cleared it if we hadn't seen
the day stipulated, even if there had been a conflict (e.g. over year)
before we hit the day-of-week that didn't match the (unset, so
defaulting to) 1st of the month.  Explicitly test for conflict and
only set conflicts (to true) if there is a conflict.  Added regression
test.

Change-Id: I7363eb66a8bb808d341738d14969039834f50db8
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-01-29 10:35:03 +00:00
Edward Welbourne
e08fe31f55 Add DST-change test for a date derived via .toLocalTime().
Uses a time derived via .toUTC() to ensure the .toLocalTime() comes
out at the time we expect.

Task-number: QTBUG-49008
Change-Id: I2005127929c7eab1b7a3cbaba8d21df8c9585d17
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-26 13:50:09 +00:00
Edward Welbourne
4970a43676 Test .addDays() and .addMonths() are sensible around DST changes.
Task-number: QTBUG-49008
Change-Id: Ie3bf9dfeb67c96b18320e18c14b9680f03cb98e9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-26 13:50:04 +00:00
Thiago Macieira
7dceb22748 Autotest: make tst_QDateTime pass when LC_TIME != en_US
QDateTime::toString for Qt::TextDate unconditionally uses the system
locale (because QDate::shortDayName and QDate::shortMonthName do).
Setting the default QLocale has no effect. If you ask me, those two
QDate methods are buggy, but they are documented that way.

Change-Id: I408dcb81ba654c929f25ffff1427366b04da5a43
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-22 03:37:54 +00:00
Edward Welbourne
1967accb64 Expand springForward_data() to cover a few more time-zones.
The important one is EET, for the benefit of our CI system; but other
European zones and the USA's coastal zones likely have enough hackers
in them to make this worth checking.

Change-Id: Idcc703bce29808e1a0a6279680cc8d3cbed38dac
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-20 17:11:58 +00:00
Edward Welbourne
f7d9e34b96 Be fussier about setting tst_QDateTime's globals.
Time zones change on the whim of politicians.  Consequently, we can
seem to be in CET/CEST or on UTC (because we tested sample dates when
our zone coincided) when we aren't (i.e. we're in a materially
different zone at the time probed by some particular test).  Make the
initialization of the globals that test this more robust against
governmental meddling and document the unfixable problem with Algeria:
a DST transition *on the epoch*.

Change-Id: I17c5c81d339b80af12f4ffab367e28052dd6c2fa
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-20 17:11:49 +00:00
Edward Welbourne
722df6e0a2 Nomenclature corrections relating to CET.
There are several European time zones; the only one relevant to the
tests here is CET.  They won't work with WET, GMT or EET.  So name
them and related variables for CET, not for Europe.

CET's summer-time isn't called CST; and the (existing) spring forward
test works only in CET/CEST, not elsewhere in Europe.

Change-Id: I55c7544bf792de7495700b749b935ec534831d8b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-20 17:11:33 +00:00
Edward Welbourne
81858bf172 Don't pretend we know what DST to use for an offset date.
When QDateTime::addDate() and friends sanitize their end-state, they
were using the DST status of their start-state (if known) to control
it.  This lead to misguided results and, in particular, inconsistent
results given that a raw-constructed QDateTime comes into being
ignorant of its DST, while a .toLocalTime() one knows its DST.

Furthermore, the code to do this was triplicated, tricky and poorly
explained.  So pull it out into a local static function and explain
what it's doing, and why, more clearly and only once.

Task-number: QTBUG-49008
Change-Id: Ia4bb3c5e9267fff8bb963ea705267998218ed623
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-01-12 09:23:55 +00:00
Edward Welbourne
89293e6b19 Make DST-transition test more general.
Widen its interval (to work in more TZs) and test spring as well as
autumn.  Anywhere that does have a DST transition probably has it
between August and December; and there's no benefit to using a narrow
window.

There's also no sense skipping the test if we don't know there's a DST
transition: the test should still work, it just won't be testing
anything (about DST transitions).

Combine date and time checks into date-time checks, so that, when one
of them fails, QCOMPARE lets us know how the other changed, too.

Task-number: QTBUG-49008
Change-Id: I145b939ffef0dd0b54fd0e3cdf72a159c57ec00b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-01-11 07:31:19 +00:00
Edward Welbourne
acb9db32b2 Add spring-forward test
Test that stepping into the missing hour lands us somewhere sane.
Check that raw instance and product of .toLocalTime() agree.

Task-number: QTBUG-49008
Change-Id: I430382ae223bcb43b151d2d6054ecbdd7edc8a47
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-11-09 08:41:25 +00:00
Friedemann Kleint
f13d8163ec tst_qdatetime: Fix compiler warning about uninitialized variable.
warning: 'typemsg1' may be used uninitialized in this function [-Wmaybe-uninitialized]

Change-Id: Ie68d279eccb003a2ca5a0116eea336cbc8776660
Reviewed-by: Edward Welbourne <edward.welbourne@theqtcompany.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2015-11-05 13:53:59 +00:00
Liang Qi
d0eaa737e1 Merge remote-tracking branch 'origin/5.5' into 5.6
Conflicts:
	qmake/doc/src/qmake-manual.qdoc
	src/corelib/tools/qstring.h
	src/gui/image/qimagereader.cpp
	src/network/access/qnetworkaccessmanager.cpp
	src/tools/qdoc/doc/examples/examples.qdoc
	src/widgets/accessible/qaccessiblewidgetfactory_p.h
	src/widgets/doc/qtwidgets.qdocconf

Change-Id: I8fae62283aebefe24e5ca4b4abd97386560c0fcb
2015-10-02 16:59:55 +02:00
Christian Kandeler
c619d2daac QDateTime: Ensure a valid timezone when using the "offset constructor".
The timeZone() function used to assert when called on such an object
(or, for a release build, return an invalid time zone).

Change-Id: I6ae8316b2ad76f1f868e2498f7ce8aa3fcabf4a6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-09-23 06:46:44 +00:00
Tor Arne Vestbø
5471413522 Add shared implementation of a NSAutoreleasePool wrapper to qglobal
We have at least 5 different (but equal) implementations of a wrapper
in Qt, and some code uses explicit NSAutoreleasePools. Having a shared
implementation lets us clean up things a bit and makes it easier to
reason about which pools are actually needed.

Change-Id: I2fd8eefc3ae7308595ef9899b7820206268362a5
Reviewed-by: Tim Blechmann <tim@klingt.org>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
2015-05-27 18:45:29 +00:00
Thiago Macieira
6272f01617 tst_QDateTime: remove silly test for timezone date too early
Let's not try to to compare our QTimeZone handling with the system one.
Our handling goes beyond the range of the POSIX APIs, so that's a recipe
for error.

Change-Id: Iee8cbc07c4434ce9b560ffff13ca4a4f335bdbae
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-03-11 07:23:21 +00:00
Thiago Macieira
d3f6249de3 tst_QDateTime: Mark more Windows incorrect transitions
The refactoring from a8c74ddcf7 commit
exposed more issues in the Windows API. There were already quite a few
QEXPECT_FAIL for this, so this isn't new.

For example, localtime(1351386000) on the Central European Timezone
should be "Sun Oct 28 02:00:00 CET 2012" (the second occurrence of 2
am), but the Windows API returns tm_isdst = 1 (i.e., still in the CEST
timezone) and that's incorrect.

Change-Id: I1bc63ac99b1d67b55d783f9606e5c59b24223b13
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
2015-03-11 07:00:24 +00:00
Frederik Gladhorn
3dbb526329 Fix regression in time zone handling
In QtScript we use the msecs since epoch conversion (JS date is based on
the concept). After a8c74ddcf7 the date
conversion test in qtscript started to fail. Instead of relying on the
code working by chance, simply update the date when setting it with
setMSecsSinceEpoch.

Task-number: QTBUG-44885
Change-Id: I9f95c9cdccea52e7d1f808f3cb9e18570ef0df13
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-03-11 01:50:08 +00:00
Thiago Macieira
a8c74ddcf7 Fix race condition in QDateTime::timeZone() and other methods
When timezone support for QDateTime was added, we decided it was a good
idea to delay creating the QTimeZone object and checking that the time
is valid in that timezone (including for local time) until the user
requested that information. Unfortunately, QExplicitlySharedDataPointer
returns a non-const T* in operator->(), which meant we were accidentally
modifying the d pointer's contents in const methods, which in turn means
those const methods were not thread-safe when operating on the same
object.

This commit changes the d pointer to QSharedDataPointer, which is safer
in this regard and pointed out where the issues with constness were
located. Since we can't lazily calculate QTimeZone anymore, we need to
do it whenever the date, time or offset changes.

Task-number: QTBUG-43703
Change-Id: Ic5d393bfd36e48a193fcffff13b9686ef4ef1454
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2015-03-07 19:22:21 +00:00
Frederik Gladhorn
34b14a8472 Merge remote-tracking branch 'origin/5.4' into 5.5
Conflicts:
	examples/xml/htmlinfo/simpleexample.html
	examples/xml/rsslisting/rsslisting.cpp
	qmake/generators/win32/msbuild_objectmodel.cpp
	src/3rdparty/harfbuzz-ng/src/hb-private.hh
	src/corelib/global/qlogging.cpp
	src/corelib/io/qstorageinfo_unix.cpp
	src/corelib/thread/qwaitcondition_unix.cpp
	src/gui/kernel/qguiapplication.cpp
	src/plugins/platforms/linuxfb/qlinuxfbintegration.cpp
	src/testlib/doc/src/qt-webpages.qdoc
	tests/auto/other/qaccessibility/tst_qaccessibility.cpp

Change-Id: Ib272ff0bc30a1a5d51275eb3cd2f201dc82c11ff
2015-02-24 21:02:08 +01:00
Thiago Macieira
402f994f12 Timezones: Fix handling of offset-from-UTC QTimeZones
Those QTimeZones failed to convert to other timezones because the data()
virtual function was never overridden and reimplemented. That meant all
QUtcTimeZonePrivate objects were *really* UTC, with no offset.

Task-number: QTBUG-44600
Change-Id: Ia0aac2f09e9245339951ffff13c5294bb783c674
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-02-23 03:55:04 +00:00
Jani Heikkinen
cb95fff1c7 Fixed license headers
Change-Id: Ibebe1318d1c2de97601aa07269705c87737083ee
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-02-17 18:46:09 +00:00
Jani Heikkinen
83a5694dc2 Update copyright headers
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.

Outdated header.LGPL removed (use header.LGPL21 instead)

Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)

Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination

Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
2015-02-11 06:49:51 +00:00
Frederik Gladhorn
b6191b16d4 Merge remote-tracking branch 'origin/5.4' into dev
Conflicts:
	src/corelib/global/global.pri
	src/corelib/global/qcompilerdetection.h
	src/corelib/global/qglobal.h
	src/corelib/tools/qdatetime.cpp
	src/plugins/platforms/xcb/qxcbscreen.h
	src/plugins/platforms/xcb/qxcbwindow.h
	src/widgets/dialogs/qcolordialog.cpp
	src/widgets/dialogs/qcolordialog_p.h
	tools/configure/configureapp.cpp

Change-Id: Ie9d6e9df13e570da0a90a67745a0d05f46c532af
2015-01-21 11:10:14 +01:00
Israel Lins
b60773934d [QDateTime] ISO Time zone designators can be [+-]HH
Added support on QDateTime::fromString to read correctly dates on ISO
format with Time zone designators at format [+-]HH

Change-Id: Ied5c3b7950aee3d0879af0e05398081395c18df5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
2014-12-30 23:56:01 +01:00
Jake Petroules
1cc079c29b Add Objective-C specific type converters to QDateTime
This patch adds the Objective-C NSDate/CDateRef converters to
QDateTime

[ChangeLog][QtCore][Objective-C] Added NSDate/CDateRef converters for
QDateTime

Task-number: QTBUG-37116
Change-Id: I937ea927083a2767b5b17f10a48bf453c9ff8b01
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
2014-10-07 18:54:21 +02:00
Matti Paaso
974c210835 Update license headers and add new license files
- Renamed LICENSE.LGPL to LICENSE.LGPLv21
- Added LICENSE.LGPLv3
- Removed LICENSE.GPL

Change-Id: Iec3406e3eb3f133be549092015cefe33d259a3f2
Reviewed-by: Iikka Eklund <iikka.eklund@digia.com>
2014-09-24 12:26:19 +02:00
Bernd Weimer
4f83102df0 QNX: Make QDateTime "daylightTransitions" auto test pass
Change-Id: I8c68d15806c6ec39e98dddda86823d9b4e3a3169
Reviewed-by: John Layt <jlayt@kde.org>
2014-05-14 09:12:39 +02:00
Daniel Seither
d69c6bc81f QDateTime: Add more tests for parsing/writing timezone offsets
The tests for toString/fromString previously didn't run tests
for timezones with hh:mm where mm != 00.

Change-Id: I74da99c5b6890f46ce06446084a8129b4cbc7a02
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: John Layt <jlayt@kde.org>
2014-05-08 21:28:45 +02:00
Bernd Weimer
3cdd0358b3 Fix QDateTime auto test
Conversion from UTC to local time will result in same datetime value,
if local time is in UTC.

Change-Id: Icd4ea57cb46cc97bcc8fce4f4e579bf64a4d4b10
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
2014-02-14 10:51:44 +01:00
Frederik Gladhorn
9033977d39 Merge remote-tracking branch 'origin/stable' into dev
Conflicts:
	src/corelib/global/qglobal.h
	src/corelib/tools/qstring.cpp
	src/gui/image/image.pri
	src/gui/image/qimage.cpp
	src/plugins/platforms/cocoa/qcocoawindow.h
	src/plugins/platforms/cocoa/qcocoawindow.mm
	src/plugins/platforms/eglfs/qeglfshooks_stub.cpp
	tests/auto/corelib/io/qstandardpaths/tst_qstandardpaths.cpp

Change-Id: I3b9ba029c8f2263b011f204fdf68c3231c6d4ce5
2014-01-20 18:18:59 +01:00
John Layt
a41a5f6671 QDateTime - Fix isValid() if invalid QTimeZone
Explicitly check that the QTimeZone is valid before trying to use it.

Change-Id: Iec415a2cb07071502fe71ee5ac92a7657e818f99
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2014-01-11 20:45:22 +01:00
Frederik Gladhorn
7917dfbf1c Merge remote-tracking branch 'origin/stable' into dev
Change-Id: I99af0bef7f1c931533a324ebcfb27c40ee871a5e
2014-01-10 18:27:49 +01:00
Thiago Macieira
eaedc04d90 Autotest: Fix QDateTime failure if the test got run West of Greenwich
There was a comment about the test failing for max() because of an
overflow. That happens if you're at UTC or ahead of it (to the East of
the Prime Meridian), which is how this test usually gets run (UTC,
Europe/Oslo, Europe/Helsinki, Pacific/Auckland). But if you're behind
UTC (to the West of the Prime Meridian), then the overflow happens for
min().

Change-Id: Iebba49d1303e9f18f5038f5cf23c77bf83e5fd4b
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
2014-01-09 22:49:23 +01:00
Frederik Gladhorn
4a8273a6fc Merge remote-tracking branch 'origin/stable' into dev
For the conflicts in msvc_nmake.cpp the ifdefs are extended since we
need to support windows phone in the target branch while it is not there
in the current stable branch (as of Qt 5.2).

Conflicts:
	configure
	qmake/generators/win32/msvc_nmake.cpp
	src/3rdparty/angle/src/libEGL/Surface.cpp
	src/angle/src/common/common.pri
	src/corelib/global/qglobal.h
	src/corelib/io/qstandardpaths.cpp
	src/plugins/platforms/qnx/qqnxintegration.cpp
	src/plugins/platforms/qnx/qqnxscreeneventhandler.h
	src/plugins/platforms/xcb/qglxintegration.h
	src/widgets/kernel/win.pri
	tests/auto/corelib/thread/qreadwritelock/tst_qreadwritelock.cpp
	tests/auto/corelib/tools/qdatetime/tst_qdatetime.cpp
	tests/auto/gui/text/qtextdocument/tst_qtextdocument.cpp
	tools/configure/configureapp.cpp

Change-Id: I00b579eefebaf61d26ab9b00046d2b5bd5958812
2013-11-26 22:35:48 +01:00
John Layt
6ad97bfa73 QTimeZone - Fix dateForLocalTime() to check validity of next transition
The private method dateForLocalTime() was not checking that transitions
were valid, resulting in infinite looping when a time zone didn't have
any future transitions.

Change-Id: I0e5d07063861778dd86056a80c36fdd9f9d36133
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-11-21 09:25:23 +01:00
Joerg Bornemann
721ec98501 remove qt_windows.h include from qwineventnotifier.h
We must not include qt_windows.h in public headers,
otherwise we're cluttering the environment with a colorful
bouquet of Windows API preprocessor macros and typedefs.

Task-number: QTBUG-34058

Change-Id: I415717ea2a47f39e7f4b7ce1c1df9d49afc99278
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-10-29 19:59:17 +01:00
Frederik Gladhorn
840f6a40e6 Merge remote-tracking branch 'origin/stable' into dev
Change-Id: Ie56539b2e0be611a363b5f15ae5412a78d6945a2
2013-10-24 12:48:42 +02:00
John Layt
93f5e0598a QDateTime - Fix RFC 2822 Date Formatting
The RFC 2822 date format should always use en_US locale for month and
day names instead of whatever the system locale is.  Also remove some
duplicate code.

Change-Id: Ia2f7ee405b4e0e2f04980301783b9488628da73f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-10-17 23:31:10 +02:00
John Layt
6a63554bf8 QDateTime - Fix toTimeSpec() for invalid datetimes
Check if the datetime is valid before converting it to a different time
spec.  If it is invalid then just change the spec to keep behavior
consistent with 5.1.

Task-number: QTBUG-34020
Change-Id: I6630ec1d50f810a2178ab3222bd32af018085f81
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-10-16 21:29:17 +02:00
Frederik Gladhorn
d8fc0da235 Merge remote-tracking branch 'origin/stable' into dev
Conflicts:
	src/plugins/platforms/minimal/qminimalintegration.cpp
	src/plugins/platforms/offscreen/qoffscreenintegration.cpp

Change-Id: Ica85deeab5c5038ac004718e25194b1157343480
2013-10-04 00:44:18 +02:00
Andrew Knight
c6af0a504f WinRT: Fix various test compilations
- Remove irrelevant test subdirs via .pro files
- Follow WinCE codepaths where applicable
- Replace unsupported Win32 APIs with WinRT equivalents

This does not aim to fix any failures in the tests themselves; it only
makes them compile.

Change-Id: Ia82bc0cc402891f8f6238d4c261ee9152b51be80
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
2013-10-02 12:36:05 +02:00
John Layt
475cbed244 QDateTime - Fix round-trip of second occurrence times
At the Daylight Tme to Standard Time transition, the local time repeats
itself, i.e. 2am occurs twice. Qt's behavior when setting this using
the local time is ambiguous, as it depends on the system implementation
of mktime, which behaves differently on different platforms.  Currently
this behavior remains undefined.  When setting using an msecs or time_t
value however we can determine the correct instance to use and cache it
to ensure that any conversion back from local time to msecs is performed
consistantly on all platforms.

Note that caching this value will result in any calculations being wrong
should the system time zone change, or its rules change.  This will be
fixed in Qt 5.3 when the system time zone change signal is implemented
and QDateTime switches to using QTimeZone instead of mktime to provide
consistnt behavior across platforms.

The QTimeZone spec does not require this fix as it already caches the
correct offset in setMSecsFromEpoch().

Change-Id: I799588db474e744a6d81e80f6a0442920569ebd3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-27 21:47:55 +02:00
John Layt
55f5b29d79 QDateTime - Add QTimeZone support
Add support to QDateTime for time zones using the new QTimeZone class.

[ChangeLog][QtCore][QDateTime] Add support for a new Qt::TimeZone
spec to be used with QTimeZone to define times in a specific
time zone.

Change-Id: I21bfa52a8ba8989b55bb74e025d1f2b2b623b2a7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-23 01:14:03 +02:00
John Layt
8d6ee59948 QDateTime - Add api for isDaylightTime()
Add new method to return if the current time is Daylight Time.

[ChangeLog][QtCore][QDateTime] Added new method isDaylightTime() to
return if the datetime is in Daylight Time or not.

Change-Id: Icb93fd5dd0b2f7d83d2d4643eeb12922c1137e3e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +02:00
John Layt
7b07c3ff78 QDateTime - Fix Daylight Transition for "missing" hour
When Daylight Time transtion goes from Standard Time to Daylight Time
there is a "missing" hour, i.e. at 2am CET the clock goes forward to
3am.  Currently QDateTime ignores this gap and considers the time to be
valid and able to be manipulated.  This change respects the transition,
so any time set in the missing hour is considered invalid, and any date
maths returns valid results.

The validity in the current time zone needs to be checked every time
isValid() is called in case the system time zone has changed since the
last time it was checked. This is done by calling mktime to check the
returned result matches the expected result.  This could be very
inefficient, but the returned offset value is cached each time so
mktime is not required to be called again within each method call,
effectively meaning mktime is called the same number of times by
each method. Note that this means any new methods added must be
careful to ensure either isValid() or refreshLocalTime() is called
first by any method needing to use the UTC value.

[ChangeLog][QtCore][QDateTime] The Standard Time to Daylight Time
transition for Qt::LocalTime is now handled correctly.  Any date set
in the "missing" hour is now considered invalid.  All date math results
that fall into the missing hour will be automatically adjusted to a
valid time in the following hour.

Change-Id: Ia652c8511b45df15f4917acf12403ec01a7f08e7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +02:00
John Layt
18322bfabc QDateTime - Change date/time storage to msecs
Change from storing the date and time as QDate and QTime to a serialised
msecs format.  This format is a direct translation of the QDate and
QTime values, it is not the actual msecs since the Unix epoch.  This
msecs format ensures we are always able to recreate the original QDate
and QTime values, but should still simplify the code and improve
performance.

Because we no longer store the explicit date and time we need to store
their isNull()/isValid() status separately.

The changes in storage results in the same memory footprint as before.

Note that this change does not optimize the code nor set out to fix the
known bugs, it only seeks to maintain the current behavior, although
some bugs are fixed implicitly.  More bug fixes and optimizations will
follow.

[ChangeLog][Important Behavior Changes] The supported date range in
QDateTime has been reduced to about +/- 292 million years, the range
supported by the number of msecs since the Unix epoch of 1 Jan 1970
as stored in a qint64, and as able to be used in the
setMSecsSinceEpoch() and toMSecsSinceEpoch() methods.

Change-Id: I98804d8781909555d3313a3a7080eb8e70cb46ad
Reviewed-by: Sérgio Martins <sergio.martins@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +02:00
Mitch Curtis
438912f273 Revert 15da0a5af2.
It apparently breaks users' applications.

Task-number: QTBUG-33487

Change-Id: Iaeceb3a02b5c7b9ab839c14693aaffcdf9394bc6
Reviewed-by: John Layt <jlayt@kde.org>
Reviewed-by: hjk <hjk121@nokiamail.com>
2013-09-19 14:58:27 +02:00
John Layt
e76c312eb8 QDateTime - Switch to using msecs based functions
A number of QDateTime functions directly use or modify the data stored
in the private, but future changes to store msecs and status make this
maintenance more complicated.  Where possible simplify this code to use
the standard msecs functions, standard constructors, or public api
instead.  This greatly simplifies the functions and the following msecs
storage code changes.

This is an intermim step towards storing the time in msecs.  Some
functions will be slower as a result of this change, optimization
will take place after all the msecs changes are completed.

Note this also removes a test that used valid QDates outside the range
of msecs, this change in behavior will be documented in the final
mscs change.

Change-Id: I6ef710f24babc7024091010064082e9be0b5bbfe
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-14 18:31:00 +02:00
John Layt
3a8b8edd01 QDateTime - Add test case for Daylight Time Transitions
Test the Daylight Time transitions.  QDateTime does not correctly deal
with many of these scenarios so those tests are marked as QEXPECTFAIL.
These bugs will be progressively addressed in coming commits.

Change-Id: I01eba9d6143a792f081542cb198e221efcf28e98
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
2013-09-14 11:38:15 +02:00