Fix a case of connect()ing to signals declared in a base class

Fix connection to pointer to member signal that belongs to the base
class, but whose type is a pointer to a member of the derived class.

The current code only use the QMetaObject of the type coming from the
function type to look up the signal id. But if the signal was casted
to a pointer to member function of a derived type, then we also need to
look in the base classes

Change-Id: Ib98fc38f63942946acb34d9f83c100991d58e4e5
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix crashes when creating large documents

Compact an object in regular intervals when inserting
data into it, to avoid the object becoming huge.
Compact an object/array before inserting into another
array or object.
Check that the document doesn't get so big it's overflowing
the internal data structures.

Task-number: QTBUG-29288
Change-Id: Id39d80dac1e7d5a11f40819f41b4b336bce16947
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Stabilize QGraphicsWidget test.

The test showed frequent failures with XCB in
initialShow2() (line 3200) after
01bc34088eb8e7fb4842fa1c2117cddbac086136 (QTBUG-30923) which
can be fixed by ensuring the widget from the HFW-test is deleted.

Use QScopedPointer to ensure widgets are always deleted in case
of test failures, too.

Task-number: QTBUG-20778
Task-number: QTBUG-30923
Change-Id: I2af7737b604820463f760d6b6787dd5a5a93d602
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
Repurpose the former Q_OS_MAC synonym "Q_OS_MACX" to mean "OS X".

The equivalent was done earlier for qmake, and this will enable
developers writing OS X-specific code to use #ifdef Q_OS_MACX as
opposed to overly verbose #if defined(Q_OS_MAC) && !defined(Q_OS_IOS).

The sole usage of Q_OS_MACX within qtbase has been changed to the
now appropriate value and documentation has been updated.

Change-Id: I2c59eea02e94b691b705170b2f96a97940fdc756
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Utilize the new Q_OS_MACX define.

All occurrences of `#if defined(Q_OS_MAC) && !defined(Q_OS_IOS)` have
been replaced with `#if defined(Q_OS_MACX)`.

Change-Id: I5055d9bd1845136beb8ed1c79a8f0f2c0897751a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Make QFlags enum flags (C++11 strict enums) friendly

Change-Id: I9ccb3e4d281a545ca1845db4f6aa7ac6c04e8621
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
QMacStyle: fix transient scrollbar fade out animation

If a transient scrollbar was hidden during the fade out animation,
it got stuck visible after being shown again. A regression introduced
by f52177829a20b55624168870498947b28b82d220.

Task-number: QTBUG-31060
Change-Id: I1cda16c6afa4370cce4702d3b4fdaee9f44f9ab9
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Add -eventfd flag support to configure.exe

The lack of eventfd(7) switches and auto detection
caused cross-compilations to fail on Windows hosts,
for builds targeting POSIX systems which do
not support eventfd(7), such as QNX and BB10.

Change-Id: Ic8f53c64066ece6f16d4dbc79c089b058401e632
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>