Cocoa: Post event to "show()" a modal window

The way we were doing it, we may have interferred with other
events in the CFRunLoop source and call processEvents() at
the wrong moment or for the wrong reason. By using a posted
event, we make the notification channel unambiguous.

This ammends ff3dcc49c4a1912189091e35e87cb61af2f62d47.

Task-number: QTBUG-38214
Change-Id: I94f7e89cf4c9803289749394f85119cba62ef0e7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Doc: document obsolete QApplication::setGraphicsSystem()

Change-Id: I5a87564d2dbfa5e739d1ca40db480e8e0c1b7fdf
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Doc: document QTimeZone::swap()

Change-Id: I80d55df65546b671772ed93cb852e88ee040114a
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Cocoa: Don't consume events when closing tool tips

With change acebf677 we treat Qt::ToolTip similar
to Qt::Popup and close them on a mouse click on the
parent window. This mouse click is not forwarded
to the standard mouse event handler.

Add an exception for Qt::ToolTip.

Task-number: QTBUG-38267
Change-Id: Ie3121f651a6ccc2427040e61db4f63967467604d
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
docs: Q_CLASSINFO is used in a couple more places besides ActiveQt

Change-Id: I000f538dc11477224efbf2edc91873822eb9fef2
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Make HarfBuzz-NG the default shaper on Mac

For AAT shaping support, we need either the pre-QPA shaping trick
or the new HarfBuzz on Mac; prefer the latter.
Disable some test cases aimed to test the HB-old behavior; enable ones
that should guarantee shaping-unaware behavior.

[ChangeLog][OS X] Use CoreText text shaping engine for support of
complex scripts. If required, the shaping engine used in previous
versions can be preferred by configuring Qt with -no-harfbuzz.
Alternatively, the QT_HARFBUZZ environment variable could be set to "old".

Task-number: QTBUG-18980 (relates)
Task-number: QTBUG-38246
Change-Id: Iee6fe4f5bc047e77259182b8585385c5febd02b3
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Improve the Unicode script itemization implementation

Make it closer to the Unicode specs (UAX#24):
* Common now inherits the preceding character's script, if any;
* In a combining character sequence, if the base character is
  of Common script, the entire sequence is treated like if it were
  of the first non-Inherited, non-Common script in the sequence.
See http://www.unicode.org/reports/tr24/tr24-21.html for more details.

[ChangeLog][QtGui] Fixed regression in arabic text rendering.

Task-number: QTBUG-28813
Task-number: QTBUG-29930 (related)
Task-number: QTBUG-35836
Change-Id: Id85761965b08ca94c674d5f3613fe58b82b2ce9c
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Ahmed Saidi <justroftest@gmail.com>
Disable threaded rendering if Mesa is used

Mesa and xcb show some bad interaction which leads to frequent crashed
on multithreaded access. Also, the selective approach to blacklisting
only specific chipsets isn't feasible, given the resources available.

The client glx vendor string is used to identify mesa instead of the
server GL vendor and/or renderer string as that is much more reliable.

Task-number: QTBUG-38221
Change-Id: I2d8c037aa4fd9c38eb9537452a5e7e62f72a081d
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>
Remove the #ifdef check just before #undef

No warning is printed anyway. This code is only for one compiler (GCC on
QNX, a.k.a. QCC).

Change-Id: I28d085c72ab5a957146efab0a36c72f213d9d2c3
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Disable all C++11 rvalue refs with Dinkumware C++ library too

Our code assumes that Q_COMPILER_REF_QUALIFIERS implies
Q_COMPILER_RVALUE_REFS. Technically, it should check both macros, but
the only point of ref qualifiers is to have both lvalue- and rvalue-
reference member functions. We might then use std::move without a check
to see if the standard library does provide it.

Change-Id: Ia3eedd298c2218f100aee2e41bdea6e2c5c07a15
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Disable C++11 initializer lists and rvalue refs for old libstdc++

This can happen if you're using a recent compiler other than GCC (that
is, Clang or Intel) and using an older version of the GCC headers.

The check is not strictly correct: we're disabling for libstdc++ that
came with GCC 4.2 and enabling for everything afterwards, even though
both of those features were not present in GCC 4.3. However, the
__GLIBC_LIBSTD__ macro only exists on Apple's patched version of
libstdc++ and they're not going to update it anyway.

libstdc++ does not provide a version macro that we can use.

Task-number: QTBUG-38193
Change-Id: I34d38a2f2e5b4ac51bce35c30ec0fcf19de9cdf4
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reload lastScrollPosition on window enter

We need the lastScrollPosition position to calculated scrolling deltas
on scroll events. Since the position is tied to the device and might
have changed while scroll events were send to other applications we need
to reload the value when mouse focus reenters our application.

Task-number: QTBUG-38274
Change-Id: Ic166648f8e7ae486288cbed339a057e3faa1ef2d
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Doc: recommend using QLocale for loading translations

Users can choose to use different UI languages and regional settings on
their devices. QTranslator::load(const QLocale &) function uses
QLocale::uiLanguages() and not to the locale name, which refers to the
formatting of dates and numbers.

Change-Id: Iec6327dd1e91d913176499b23482d725b9d0a8aa
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
fix debug_and_release builds

Task-number: QTBUG-38358
Change-Id: Idb02fd845c1f36b963150cc150dd2ee5bdd7bc4a
Reviewed-by: Eike Ziller <eike.ziller@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Doc: Adding Enginio's export macro to the list of excluded QDoc tokens.

-helps the QDoc parser read C++ API when the macro is excluded.

Task-number: QTBUG-33360
Change-Id: Ic7e86c0d1cec4a1960d20b1c92c4b60396eb3ea6
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
don't make relative paths if we don't know the top-level build dir

regression from qt4.

Task-number: QTBUG-37113
Change-Id: I34813f03d8ec686e3ecb49f66629079489a3d83d
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Fix font merging for complex scripts on Windows

As long as QWindowsFontDatabase::fallbacksForFamily() does not take script
parameter into account, we should prefer QFontEngineMultiQPA's loadEngine()
implementation for complex scripts; otherwise we could fall into a situation
where reported fallback fonts doesn't support the requested script at all.

This finishes c3b2425791ec1e17a8b1e2f5b35b8e79176fc9c4.

Task-number: QTBUG-37836
Change-Id: I2c43d97f1331ad05116856f9fe77560ed4dd02c7
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Android: Reset input method when focus changes

Qt Quick does not have the widgets workaround of explicitly hiding
the input method on focus out. This fix copies what happens in
the iOS port: Commit the current preedit and reset the IM when we
see that the focus object changes.

Task-number: QTBUG-38047
Change-Id: I30805265286dc650b3734e2a24807cdc8bfbcd16
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
iOS: fix crash in auto correction when using unknown font family

If QFont reports a family name that cannot be used to instanciate
a UIFont, we end up trying to insert a nil object to an
NSDictionary. This will raise an exception.

This patch will check that we have a valid UIFont before using it.

Task-number: QTBUG-38018
Change-Id: Id8a2e4afea8c915ff43a7e4680304ba19328f9c2
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
WinRT: Don't use the native thread handle for waiting

There is no guarantee that the handle from std::thread will be valid
when a wait is made. Instead, simply use an elapsed timer and check
if the thread is finished. This prevents an exception from being thrown
when a bad handle is encountered.

Task-number: QTBUG-31397
Change-Id: Ie2a7e6cbfbb27bf1baff779322670d85e92e10dd
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>