Commit Graph

15211 Commits

Author SHA1 Message Date
John Layt
8af776d414 QTimeZone - Add Windows backend
Add backend implementation for Windows times zones.

Change-Id: I30946f6672488c3f1d1d05754e9479aa62cce46f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-23 01:13:58 +02:00
John Layt
7ed7d66b5a QTimeZone - Add Mac backend
Add Mac backend support

Change-Id: Iafa2dbd925e18431f571e3eac62983015f8bc977
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-23 01:13:49 +02:00
John Layt
8dfaf91038 QTimeZone - Add TZ File Backend
Add a backend for TZ Files.

If available uses ICU for the display names and  translations, otherwise
the abbreviation is used.

Change-Id: I58c777462810b1a76ea7bd95886836b70b8a3db5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-22 22:21:24 +02:00
John Layt
9c2cbee2b1 QTimeZone - Add ICU support
Add ICU backend for QTimeZone

Change-Id: I92e53a848477e366591102064b093e936f0b49d2
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-22 22:21:19 +02:00
John Layt
48e2c3ac33 QTimeZone - Define new class and api
Implement the new QTimeZone class based on the Olsen Time Zone ID's.

This is the base implementation and does not include the Platform
backends which are implemented separately.

This change does include a default UTC backed to be used if no Platform
backend is available, i.e. if QT_NO_SYSTEMLOCALE is set and ICU is not
configured.  This backend also provides a default set of time zones in
the standard "UTC+00:00" offset format that are guaranteed to always
exist regardless of the Platform backend.

This change includes conversion functions between the Olsen ID's and
Windows ID's using a conversion table based on Unicode CLDR data.
This is implemented for all platforms for scenarios such as a Linux
program needing to communicate with a Windows Exchange Server using
the Windows ID.

The CLDR conversion table is included under the UNICODE license, see
http://unicode.org/copyright.html for details.

[ChangeLog][QtCore][QTimeZone] Added new QTimeZone class to support
time tone calculations using the host platform time zone database
and the Olsen time zone ID's.

Change-Id: Ibb417d08cf2663a0979d2be855d2c6ad6ad01509
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-22 22:21:15 +02:00
Marc Mutz
ab55f9f39b Q_STATIC_ASSERT: use __COUNTER__ instead of __LINE__ if the compiler supports it
When using __LINE__ to construct unique names, use of Q_STATIC_ASSERT
is limited to one instance per line of code. On compilers that support
__COUNTER__ (GCC and MSVC, probably others), we can get around that
limitation by using that one to always get a new unique number, so
use it.

Change-Id: I89bcfaa32376b7a665f03e4275e89b13fa3e650d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-22 10:32:42 +02:00
Sean Harmer
1b34df6ea6 Long live QOpenGLTexture!
Task-number: QTBUG-33274
Change-Id: I9259d947d11f8ba330a2cd7f5620d8f1af0a804b
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
2013-09-22 08:56:47 +02:00
Thorbjørn Lund Martsum
42d681f9cf Add widget replace function to QLayout
Sometimes it is nice to be able to replace a widget in a layout.

Change-Id: I23a6a65e417e94d53bc48639503db1a142bc3f10
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
2013-09-21 23:17:55 +02:00
Marc Mutz
e327ba191d QTest: microoptimisation
Change-Id: Ifd053870c270a2c0a0a33c8201e40aaa9a9f9041
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2013-09-21 18:39:13 +02:00
Marc Mutz
6611f04879 QFutureInterface: wrap a pair of {release,reserve}Thread() calls with RAII
Rationale: a wait on a condition-variable is usually a cancellation point.
On Posix, and probably in C++ at some point, a thread cancellation is
done by (a kind of) exception unwinding the stack. To ensure that
we call reserveThread() in all cases, wrap the function pair in a RAII
class. Even if we currently don't seem to support exceptions in QtCore,
this is low-hanging fruit, and no worse than what we had before.

Change-Id: Ifb0f428ea50f9ac12be14e620615f46e00d3dd91
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
2013-09-21 18:39:13 +02:00
Sergio Ahumada
4cebef621b Merge "Merge branch 'stable' into dev" into refs/staging/dev 2013-09-21 18:39:13 +02:00
Jędrzej Nowacki
8969f57b6a Improve qdoc performance.
Valgrind blamed CppCodeMarker::addMarkUp as slow, the patch improves
situation by ~12%

Use of QStringLiterals instead of const char* reduce amount of
allocations on startup.

Change-Id: I8737e02785506bba7e23868ab3952eab09d543d2
Reviewed-by: Martin Smith <martin.smith@digia.com>
2013-09-21 18:39:13 +02:00
David Edmundson
cab86ec3ed Replace hardcoded shortcuts for X11 in QLineEdit with StandardKeys
Added Ctrl+E to the X11 shortcuts for "move to end of line"
Added new StandardKey DeleteCompleteLine bound to Ctrl+U

Updated QLineEdit to use these standard keys

Change-Id: I24e5dd3b4fed9f6c15f0d1a00be682734e2485a4
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
2013-09-21 18:39:13 +02:00
David Edmundson
3edc1a4b91 Fix last standard keyboard shortcut
Binary search only counted up to < N-1 items, which does not
include the last value

Change-Id: I40e620db3f834fce8776119d7533c157a4a02492
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
2013-09-21 18:39:13 +02:00
Sergio Ahumada
a5d34b34fb Merge branch 'stable' into dev
Change-Id: I37d85631ab1165ab91457d8880c4da907a9df73b
2013-09-21 17:33:15 +02:00
Frederik Gladhorn
b751fcf32a Fix some doc errors.
Change-Id: Ib874d7e9671d9cee75fe41f4dac5d0de7b09245e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
2013-09-21 17:04:41 +02:00
Robin Burchell
5957f245c6 Mark most of the contents of QtAlgorithms as deprecated.
This is done per the mailing list discussion at
http://www.mail-archive.com/development@qt-project.org/msg01603.html

Change-Id: Ic31c052e7f35c576250bf11826ca82e371142c82
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
2013-09-21 13:59:01 +02:00
Giuseppe D'Angelo
9bb99d8130 Remove qFind usage from QCoreApplication
This is done per the mailing list discussion at
http://www.mail-archive.com/development@qt-project.org/msg01603.html

Change-Id: I1a067a4262d5442fb118089b859cad4dc1748c40
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2013-09-21 13:58:47 +02:00
Samuel Gaist
ac0bacc8af Port of Qt 4's Windows session management
This patch aims to implement the session management for Windows.
Based on the Qt 4 QApplication windows specific code

Task-number: QTBUG-28228
Task-number: QTBUG-33032
Change-Id: I7059298ad9661aebd51e77a03f55a7a04f461479
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
2013-09-21 07:45:44 +02:00
Morten Johan Sørvig
2b65bba77d Add Mac type conversion functions to QtCore
New API:
    static QString QString::fromCFString(CFStringRef string);
    CFStringRef QString::toCFString() const;
    static QString QString::fromNSString(const NSString *string);
    NSString *QString::toNSString() const;

    static QUrl QUrl::fromCFURL(CFURLRef url);
    CFURLRef QUrl::toCFURL() const;
    static QUrl QUrl::fromNSURL(const NSURL *url);
    NSURL * QUrl::toNSURL() const;

Add Q_OS_MAC-protected function declarations to header
files, add implementation to _mm files.

CF and NS types are forward-declared in the header
files to avoid including the CoreFoundation and Foundation
headers. This prevents accidental use of native types
in application code. Add helper macros for forward-
declaration to qglobal.h

Add cf_returns_retained/ns_returns_autoreleased attributes
to toCFString() and toNSURL(). These attributes assists
the clang static analyzer. Add Q_DECL_ helper macros
to qcompilerdetection.h.

Add test functions (in _mac.mm files) to the QString
and QUrl tests. Split out the test class declarations
into a separate headers files.

Change-Id: I60fd5e93f042316196284c3db0595835fe8c4ad4
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
2013-09-21 05:09:41 +02:00
Morten Johan Sørvig
dd7bfffa77 Add QMenu -> NSMenu conversion functions.
Add QMenu::toNSMenu() and QMenuBar()::toNSMenu().
Add QMenu::setAsDockMenu and qt_mac_set_doc_menu(QMenu *menu)

These are all API wrappers around implementation
in the Cocoa platform plugin.

Change-Id: I927ed4fb5dc42cc577a41a80b531a4a2f7b8812c
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
2013-09-21 05:09:33 +02:00
Jake Petroules
f9365b0acc Use the correct identifier for the OS X operating system.
This is consistent with other areas of Qt:
qmake, Qt.platform.os (QML), qbs.targetOS (QBS), and #define Q_OS_OSX.

Change-Id: Ibf98e6ba3556a14187dadae1b0235e9c907c9001
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
2013-09-21 05:09:16 +02:00
Sergio Ahumada
642ebccaad Merge "Merge remote-tracking branch 'origin/stable' into dev" into refs/staging/dev 2013-09-21 02:59:14 +02:00
Marc Mutz
129a8ce389 qatomic_cxx11: fix fetchAndAdd*()
In qatomic_cxx11, the 'Type' is std::atomic<T>, whose fetch_add method,
used in fetchAndAdd*(), already does the right thing for T* with sizeof(T) > 1.
The code, however, applied 'AddScale' to the 'valueToAdd', thus becoming
incompatible with normal pointer arithmetics.

This is very apparent when one goes to the length of actually testing
qatomic_cxx11 with tst_QAtomicPointer (which is non-trivial, since the
-c++11 configure option currently doesn't have an effect on tests/auto).

To fix, remove the AddScale factor.

Change-Id: I7507203af3b7df31d8322b31a6a1a33ca847d224
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-21 01:25:19 +02:00
Marc Mutz
9efa71ac0a QMutex: fix race on 'owner' in the recursive case
The read from 'owner' for comparison with 'self' in QRecursiveMutexPrivate::lock()
is not synchronized with the write to 'owner' in the same function further down,
and neither operation is atomic.

Fix by making 'owner' an atomic pointer.

Change-Id: I186b88575589da0dce5827a1e17ceb4ce599ed02
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-09-21 01:25:19 +02:00
Marc Mutz
84033f550f QAnimationGroup: avoid undefined behavior
The existing code performed a downcast from QObject* to QAbstractAnimation*
at a time when the former QAbstractAnimation only is a QObject anymore.
The comment indicates that this was understood at the time of writing (or
else a little later), but it drew the wrong conclusions.

Statically downcasting a type whose dynamic type is (no longer) of the
target type is undefined behavior.

This change fixes the code to (implicitly) cast _up_ to QObject and
compare at that level.

Says Clang:
src/corelib/animation/qanimationgroup.cpp:278:33: runtime error:
 downcast of address 0x000002966ab0 which does not point to an object of type 'QAbstractAnimation'
 0x000002966ab0: note: object is of type 'QObject'
 00 00 00 00  80 d7 e6 d7 88 2b 00 00  70 7b 96 02 00 00 00 00  61 00 6e 00 6e 00 6f 00  21 00 00 00
              ^~~~~~~~~~~~~~~~~~~~~~~
              vptr for 'QObject'

Change-Id: I51d6277020d0ff32cd7b80a8cddcf2cda1a626a6
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-09-21 01:25:19 +02:00
Tor Arne Vestbø
09205d5734 qmake: Expose ARGC to qmake functions to be able to check argument count
ARGS already exists, but is a flattened list of the arguments, so both
foo(bar, baz) and foo(bar baz) will give count(ARGS, 2), making it
unreliable for validating arguments to qmake functions.

Change-Id: I0bcc16614c64000169431327da48fd1a26708e67
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
2013-09-21 01:25:19 +02:00
Tor Arne Vestbø
8aefa4dc46 qmake: Don't create OBJECTS_DIR and friends for TEMPLATE = subdirs
A bunch of empty and never-to-be-used directories makes the build tree
noisy and harder to navigate.

Change-Id: Iebef91c82d58a8d6a0047fb5439d50eb6806f557
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
2013-09-21 01:25:19 +02:00
Tor Arne Vestbø
e582d742cc Sanitize QMAKE_EXTRA_COMPILERS paths in makefiles
There was a mismatch of how we sanitized paths for dependencies of the
target and how those dependencies were sanitized (or not sanitized),
resulting in the target depending on 'some/path/foo.o' while the
extra compiler target was named 'some/path//foo.o', with an extra
slash. This confused 'make' enough to decide that it didn't know
how to build the dependencies for the target.

Change-Id: I181b86c291286cbbbb1f7b4c3b929a5f1dc163a3
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
2013-09-21 01:25:19 +02:00
Tor Arne Vestbø
15e9c3301c Strengthen check for combined QMAKE_EXTRA_COMPILER with variable output
The pattern ${QMAKE_ needs to be at the beginning of the line, or not
start with a $ (which would make it a regular qmake variable).

Also, it's fine that the variable is of the QMAKE_VAR_foo type, as
these variables are resolved at generator time, but are constant
and do not depend on the inputs. This means we have to replace
extra variables in the output.

Change-Id: I21ad24ae770f2137e2d5d92a20ee54e2f3f4ca06
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
2013-09-21 01:25:19 +02:00
Tor Arne Vestbø
9c6a4c1a37 iOS: Compare similar types when setting up QPlatformScreen
[NSArray count] returns an NSUInteger (unsigned long).

Change-Id: I3b1c6720e9503ed181f01a7e737de07a277f7bde
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
2013-09-21 01:25:19 +02:00
Stephen Kelly
d8bc9903f5 docs: QT_STATICPLUGIN is needed when building a plugin, not application.
Change-Id: Ifcdf2df6adad7511730af3f24d4d4c82aa78e61f
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
2013-09-21 01:25:19 +02:00
Laszlo Agocs
88fb127331 eglfs: Unify the native resource getters
Similarly to how it's done in xcb. And add support for eglwindow since
the WId will soon once again cease to be an EGLNativeWindowType.

Change-Id: I0e3b86a21179439821550c9423f0e747ccae5897
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Reviewed-by: Andy Nichols <andy.nichols@digia.com>
2013-09-21 01:25:19 +02:00
Giuseppe D'Angelo
73637b7d1a Remove qBinaryFind usages from bootstrapped files
This is done per the mailing list discussion at
http://www.mail-archive.com/development@qt-project.org/msg01603.html

Change-Id: I492b49553bc889892f5ca0c47aa13c75e11518e2
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-09-20 23:45:35 +02:00
Bernd Weimer
6a12da7fb3 Added support for cover windows on BlackBerry platform
On the BlackBerry platform when an application is minimized an
alternate cover window is shown. This patch allows Qt to render
into those windows.
A new window type "Qt::CoverWindow" has been introduced.

Change-Id: If5e321f5cb00f6d3ed7a5dc0af425655d7a9253a
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
2013-09-20 23:45:06 +02:00
Oto Magaldadze
6b95130faa QCompleter::setFilterMode() add property filterMode.
QCompleter::setFilterMode(Qt::MatchContains) will enable filtering
out entries that contain typed characters in any place, instead of the
default behavior when only those entries that start with typed characters
are displayed. Qt::MatchEndsWith is also possible.
QCompleter::setFilterMode(Qt::MatchStartsWith) will bring the default
behavior back.
Task-number: QTBUG-3414

Change-Id: I3845704c59eb8fc401e9a650c54a9c934ed28c2e
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
2013-09-20 23:45:06 +02:00
Marc Mutz
ef5455429f QFutureInterface: remove unused member variable 'pendingResults'
Change-Id: I059580831ed29a53186272283aa7695c57539eed
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
2013-09-20 23:45:06 +02:00
Marc Mutz
eec9567111 tst_QPainter: fix a Q_DECLARE_METATYPE coming too late
The compiler complained that the specialization was required
before it was issued. Fixed by moving it up to the others
near the top of the file.

Change-Id: I0ae162a5db5ef29f24cd1d32285a1870fdd24b9b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
2013-09-20 23:45:06 +02:00
Marc Mutz
bc016c53fc QLinkedList: implement missing initializer_list ctor
Found by tst_QLinkedList once compiled in C++11 mode.

Change-Id: Idbf79d775c5271437dbb99c1c8cc7a2e8a7f08bf
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
2013-09-20 23:45:06 +02:00
Teo Mrnjavac
132190c3a2 Build X11 session management only if dependencies are found
This fixes the build breakage caused by Change I50b33d05 when attempting
to compile on Linux with session management enabled but libSM and/or
libICE not present.

Change-Id: I127f32e7041deb2ff968eae8458fee7d4e95d7a5
Reviewed-by: Samuel Gaist <samuel.gaist@edeltech.ch>
Reviewed-by: Bernd Weimer <bweimer@blackberry.com>
Reviewed-by: aavit <eirik.aavitsland@digia.com>
2013-09-20 23:45:06 +02:00
Eskil Abrahamsen Blomfeldt
de1f9bdc15 Android: Never error out on literal-suffix warning
When warnings are treated as errors, no Android code will
compile, since one of the platform headers in the NDK triggers
the literal-suffix warning. So we need to mark this as no-error.

Change-Id: Icabf1c2f2d32f76ee157d04e62a28f83abeed8f1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +02:00
Eskil Abrahamsen Blomfeldt
5a7da37be5 Android: Let ANDROID_API_VERSION env var take precedence
If you specify ANDROID_API_VERSION to override the default
API versions used for building the jar files, this should
take precedence even when the .pro files specify a different
default API version (like QtAccessibility does when it sets
the default to android-16.) Otherwise it's impossible to
override these defaults.

Change-Id: Idef98aaf3b51490bd7ced8c53770ee2f5680b1db
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Christian Stromme <christian.stromme@digia.com>
2013-09-20 23:45:06 +02:00
Christian Strømme
e4f1d83b6a Remove jniconvenience from platformsupport.
The jniconvenience api is replaces with private API's in core and
public API's in the qtandroidextras module.

Change-Id: Iaf4b4343f8022197e7ec3fdde2406eb3c881208d
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
2013-09-20 23:45:06 +02:00
Christian Strømme
1f47ceec47 Android: Use the new QJNI api in our QLocale implementation.
This change makes use of the private QJNI api that now exists in QtCore.

Change-Id: Id03664942d6c6cbfec028a3b52729057153a8466
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
2013-09-20 23:45:06 +02:00
Kai Koehne
3efca77e35 Import qlogger framework
Merge most parts of the qlogger framework from

git://gitorious.org/qtplayground/qlogger.git

The categorized logging feature is a replacement for qDebug, qWarning and
friends. With logging statements in an app/library, a developer can
turn on the statements they care about and turn off the ones they don't.

Most work for this was done by Wolfgang Beck and Lincoln Ramsay.

Task-number: QTBUG-25694
Change-Id: Ib0cdfbbf3694f86ad9ec553b2ea36f09a477cded
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +02:00
Martin Klapetek
99f9bf9af6 Offer Page Range option for apps that can't do it themselves
Some apps may not support printing only a particular page range, but
with CUPS we can do "server-side print range", ie. we can select the
page range for the application.

If CUPS is available, the Page Range widget is now displayed if app
advertises no such capability and page range is selected on the server
instead.

[ChangeLog][QtPrintSupport][QPrintDialog] Added CUPS server-side print
range support for apps that can't support print range option themselves

Change-Id: Ia7784065ba5a8b53bb05ae46e982c718ef672fa5
Reviewed-by: John Layt <jlayt@kde.org>
2013-09-20 23:45:06 +02:00
John Layt
c5b58ecd2e QDateTime - Move some code around
Move some of the static helper  and private functions to better
organize the code.  No code actually changed.

Change-Id: I6d5dd6bcb9fc5af56d2dbe9e53bc9f0a000c4fa4
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2013-09-20 23:45:06 +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
fafc2daf94 QDateTime - Change serialise format
Change the datetime serialisation from using QDateTimePrivate::Spec to
using Qt::TimeSpec. Only public classes and enums are now used to
serialise, making the format safer..

Clean up the code to make each version clearer, this duplicates some
code but is easier to read and support.

Change-Id: I3d8fc05f50f8e8acb9edbb992e5ce06063654b8e
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