canConvert() and convert() use the metaobject to convert such types.
Change-Id: Ic05e74c5c2423b4b9682b88adc856a16dcba4cff
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This will allow conversion between pointers to compatible QObject
derived types.
Change-Id: I19e08934571fb3f1b91e594892214041fe5f6a11
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Store the signal index in QObjectPrivate::Connection, thereby making
it available in "implicit" disconnect contexts (i.e., receiver
deletion).
This change does not cause the size of QObjectPrivate::Connection
to grow (still 40 bytes on 32-bit Linux, 72 bytes on 64-bit Mac).
Valgrinding the new benchmark indicates that the percentage of the
time spent in the QObject destructor increased from 7.8% to 8.4%
on ia32, for that particular stress test; the increase is the
combined cost of calling metaObject(), QMetaObjectPrivate::signal(),
and disconnectNotify() for one connection. In practice, the measured
wallclock time increased by about 3ms for a 500ms run (which
repeatedly constructs, connects, and destroys an object).
Task-number: QTBUG-4844
Change-Id: I1beb01c753f31542fc0acb62edb4c6d165fcc5b4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This allows QVariant/QMetaType software (such as QtDeclarative) to
deal with smart pointers in a similar way to how they can deal with
naked pointers (accessing properties etc).
This also adds a requirement that T be fully defined when
QSharedPointer<T> is inserted into a QVariant.
Change-Id: I29e12b8a6aa5f4aadbd62f92b89bc238f64b5725
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
The T must be derived from QObject, or it will fail to compile.
This will allow scripting or other 'wrapping' and runtime environments like
QtDeclarative to handle QSharedPointers to types derived from QObject
properly. A QSharedPointer<T> can be inserted into a QVariant, and
where T derives from QObject, a QSharedPointer<QObject> can be
extracted from the QVariant, and its properties are then accessible.
Change-Id: I68d6d89aceceb019267bd7301baa2047f9c09b90
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Verify that this produces a warning containing the relevant typename.
Change-Id: I046c02585e410a211e9175600b1027dda83bdd9c
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
QSharedPointer doesn't work like the other automatic template metatype
declarations because in some cases T* is declared as a metatype, but we
are interested in QSharedPointer<T> (eg QObject*). In other cases, T is
declared as a metatype and we are interested
in QSharedPointer<T> (eg char).
In particular the macro used before this patch was attempting to get the
metatype id of the element_type using for example qMetaTypeId<QObject>()
instead of qMetaTypeId<QObject*>(), which did not work.
Similarly, the variadic macro driven test is no good, because it was
testing QSharedPointer<QObject*> instead of QSharedPointer<QObject>,
so that is removed.
In the end, the only thing we can sensibly automatically declare as
metatypes are QSharedPointers to QObject derived types. That is also
the type that makes the most sense in a QML context anyway.
Change-Id: I13dd40147e2e6bedf38661f898102abaaaa96208
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Containers are auto-registered and use normalized names.
Change-Id: Id65c3940401f69436929220e1f6a971135e147ed
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Internally, QObject and QMetaObject already leave out non-signal
methods when working with signals. This is possible because the
signals always come before other types of meta-method in the
meta-object data. Ignoring irrelevant methods is faster and can
save memory.
QMetaObject provides internal indexed-based connect() and
disconnect() functions. However, these functions currently take an
absolute method index as the signal specifier, instead of an
absolute _signal_ index. Hence, QMetaObject and friends must convert
from the method index range to the signal index range.
By providing an API that only considers signal indices, clients of
the index-based QMetaObject::connect()/disconnect() can provide the
proper signal index directly. Similarly, for the qtdeclarative
integration (QDeclarativeData hooks) the signal index can be passed
directly. This will eliminate most of the conversions back and forth
between signal index and method index, and some other redundant work
done by qtdeclarative's custom connection implementation.
There are some places where the behavior can't be changed; for
example, QObject::senderSignalIndex() will still need to return an
index in the method range, since that function is public API.
Changing QMetaObject::connect()/disconnect() to take an index in
the signal range will be done in a separate commit; this commit is
only an enabler for porting existing usage of those functions to
the new behavior.
Change-Id: Icb475b6bbdccc74b4e7ee5bf72b944b47159cebd
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
These tests have passed a parallel stress test on all three of Linux,
Mac, Windows. Mark them with CONFIG+=parallel_test to allow CI to run
them in parallel, saving time.
Change-Id: I19fd333c3c645a67374ca998f6c8530dd236b0f8
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
MSVC2010 32-bit (with and without service pack 1) takes about 1 hour to
compile this file in some builds, since
1c7421ad14.
Avoid the relevant portion of the code just for these compilers.
Change-Id: Icbb4fa12a6d563a7cdc882c30cdb5705675bedb0
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
QIcon has been moved back from QWidget to QtGui, so the QIcon QVariant
and QMetaType handler can now be moved back to QtGui.
Also we can give back QIcon its old number, allowing to get rid of some
compatibility hack when unstreaming QVariant
Change-Id: I439d5c2987c06ecd619f394407850f678164afb8
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This completes the transition from connectNotify(const char *) and
disconnectNotify(const char *) to the new QMetaMethod-based
functions.
Removed the old connectNotify autotests and renamed the
connectNotifyMethodXXX autotests to connectNotify, since there is
no longer any ambiguity about which overload is being tested.
Change-Id: Icf108a80177155f21bb73c165fb8ab5d4e997bc2
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
C++ distinguish between "char", "signed char" and
"unsigned char", they are three independent types.
Fix QVariant behavior on ARM. On ARM "char" may mean
"unsigned char", but we depends on the sign during
a numerical conversions.
Change-Id: I610ce3fb88ed5964b67f3ae442d264fe16b2d261
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This operation should be a no-op anyway, since at this point in time,
the fromAscii and toAscii functions simply call their fromLatin1 and
toLatin1 counterparts.
Task-number: QTBUG-21872
Change-Id: I38f97ad379deafebef02c75d611343ca15640c8a
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This way, QWinEventNotifier will work on all Windows systems, not just
with the default event dispatcher. Other dispatchers (other than
QWin32EventDispatcher) are permitted, so the class should not abort just
because of that.
If a dispatcher really doesn't want to implement this, they need to
implement the virtuals to do nothing, possibly print a warning.
Change-Id: I2c132bcde95b9d5941c8906a0fcd2ad964087772
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
This is much more performant than calling QObject::receivers(const char*)
Can be used instead of connectNotify in some cases.
Change-Id: I19e0933f678f171f515d9a0f69f0ad4fb7d894b4
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
qVariantValue and qVariantCanConvert are Compatibility members, while in
Qt4.8 they are marked as Qt 3 Support Members.
qVariantFromValue and qVariantSetValue are Obsolete members.
Change-Id: Ie8505cad1e0950e40c6f6710fde9f6fb2ac670fd
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>
Reimplementations of connectNotify() and disconnectNotify() can
assume that the signal argument is in normalized form, but after the
introduction of the Qt5 meta-object format, it could happen that it's
not.
The problem is that the internal QArgumentType class, which attempts
to resolve a typename to a type id, was calling QMetaType::type().
QMetaType::type() falls back to trying the normalized form of the
typename if the original argument can't be resolved as a type (this
behavior isn't documented, but that's how it works). This means that
e.g. QMetaType::type("const QString &") returns QMetaType::QString.
Since QMetaObjectPrivate::indexOfMethodRelative() (more specifically,
the methodMatch() helper function) prefers to compare type ids
over typenames (since the type ids are stored directly in the meta-
object data for built-in types), the method lookup would *succeed*
for signatures with non-normalized built-in typenames as parameters.
QObject::connect() would then think that it did not have to
normalize the signature (see "// check for normalized signatures").
The consequence was that the original, non-normalized form got
passed to connectNotify().
This commit introduces an internal typename-to-type function that
is the same as QMetaType::type(), except it doesn't try to normalize
the name. This way, the only place where normalization can occur in
the signature-to-meta-method processing is through the calls to
QMetaObject::normalizedSignature() in QObject::connect() itself.
The implication is that there are now cases where the method
signature will be decoded and processed twice, where processing it
once was sufficient before. On the other hand, it is consistent with
the pre-Qt5-meta-object behavior, where we predict that the
signature is already normalized, and only perform (comparatively
costly) normalization if the initial lookup fails.
Change-Id: Ie6b60f60b0f9a57ebd378d980329dac62d57bbd9
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
static_metacall was never set on the metaobject written by
QMetaObjectBuilder::fromRelocatableData, sometimes causing a crash. It
should be initialized to 0.
Change-Id: I79373d895e131f0cc2ff1af6d2177a0c1a282be7
Reviewed-by: Toby Tomkins <toby.tomkins@nokia.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
This API will fully replace the const char *-based connectNotify()
and disconnectNotify() in Qt5; the old functions will be REMOVED
before Qt 5.0 final.
The new implementation fixes the long-standing issue of
connectNotify() not being called when using the (internal)
index-based QMetaObject::connect() (e.g., from QML).
As with the old API, there are still two "unintuitive" behaviors
concerning disconnectNotify():
- disconnectNotify() is not called when the signal is disconnected
using the QObject::disconnect(QMetaObject::Connection) overload.
- disconnectNotify() is not called when a receiver is destroyed
(i.e., when a connection is implicitly removed).
The old versions of connectNotify() and disconnectNotify() are kept
for now, and they are still called. They will be removed once known
existing reimplementations (e.g., QtNetwork, QtDBus) have been
ported to the new API.
Change-Id: I8b4f007f3c6d89199c1ba04a3e23c8ca314e0896
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
Given a member function that's a signal, returns the corresponding
QMetaMethod. Inspired by the implementation of the template-based
QObject::connect().
The primary use case for this function is to have an effective and
exact (not subject to shadowing) way of checking whether a known
signal was connected to in reimplementations of
QObject::connectNotify(QMetaMethod), avoiding string comparisons.
Example:
void MyObject::connectNotify(const QMetaMethod &signal)
{
if (signal == QMetaMethod::fromSignal(&MyObject::mySignal)) {
// Someone connected to mySignal ...
}
}
Change-Id: I5e4de434275fe543c004d569dcaa9ceda3442f03
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
QMetaObjectExtraData was added when support for QMetaObject::newInstance
was added. One needed a place to put the pointer to static_metacall in
the QMetaObject.
But as we break binary compatibility, one can change the size of
QMetaObject, and put everything back inside QMetaObject's own structure.
Meaning it is not required anymore to have one QMetaObjectExtraData
instance per QMetaObject anymore.
Change-Id: If0b8f586cbaf633eed10045adee3ba3366826c86
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
This is done in preparation of introducing the
QObject::connectNotify(QMetaMethod) function. Together with the
forthcoming QMetaMethod::fromSignal() function, which returns the
QMetaMethod corresponding to a Qt/C++ signal (member function), the
comparison operators provide an effective way of checking which
signal was connected to.
Change-Id: I2de48628c4884a7174fb8574895f272cb3fe5634
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
These warnings are expected and correct, so ignore them.
Change-Id: I43931950e46bd3c931db869902574ee7219efa1d
Reviewed-by: Jason McDonald <jason.mcdonald@nokia.com>
Adjust the test because we don't read past the end anymore.
Task-number: QTBUG-25108
Change-Id: I8243f1d5ae79d1256aab2cb1132598a716a7eeeb
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@nokia.com>
The constructor is wrong, it creates instance of QVariant encapsulating
a QColor instance. QVariant should not implicitly convert data, never.
Change-Id: Idc794ecdecb42d8b53fee3f993bf51ddd43f595d
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
That change also fix moduleForType() which was wrongly recognizing
negative ids as belonging to Core.
New tests were added.
Change-Id: I40a5819effb32489a45937011980457387c9f8be
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
This test is like qguieventdispatcher, it duplicates a corelib test in
the gui test suite, since the QtGui library often gets a different event
dispatcher implementation from the platform plugin.
Change-Id: Ifd724066950bc3b98a804bc2e5d40ce7b0429af4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
That was a regression introduced in 1c5db1aff
Example:
signals: int *someSignal();
would produce this code:
int* _t0 = int*();
which does not compile
So have special handling for pointer to change it to '= 0'
Change-Id: Ie695e15e309d15c3cfd5c5a69ac8bf6d61ae9915
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
It is an extension coming from the use case when you, for instance, need to
implement a countdown timer in client codes, and manually maintain a dedicated
variable for counting down with the help of yet another Timer. There might be
other use cases as well. The returned value is meant to be in milliseconds, as
the method documentation says, since it is reasonable, and consistent with the
rest (ie. the interval accessor).
The elapsed time is already being tracked inside the event dispatcher, thus the
effort is only exposing that for all platforms supported according to the
desired timer identifier, and propagating up to the QTimer public API. It is
done by using the QTimerInfoList class in the glib and unix dispatchers, and the
WinTimeInfo struct for the windows dispatcher.
It might be a good idea to to establish a QWinTimerInfo
(qtimerinfo_win{_p.h,cpp}) in the future for resembling the interface for
windows with the glib/unix management so that it would be consistent. That would
mean abstracting out a base class (~interface) for the timer info classes.
Something like that QAbstractTimerInfo.
Test: Build test only on (Arch)Linux, Windows and Mac. I have also run the unit
tests and they passed as well.
Change-Id: Ie37b3aff909313ebc92e511e27d029abb070f110
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Bradley T. Hughes <bradley.hughes@nokia.com>
Callers should just call the standard allocation functions directly.
Adding an extra function call onto all basic memory management for the sake of
making it instrumentable in rare cases isn't really fair to everyone else.
What's more, this wasn't completely reliable, as not everything was using them
in a number of places. Memory management can still be overridden using tricks
like LD_PRELOAD if needed.
Their aligned equivilents cannot be deprecated, as no standard equivilents
exist, although investigation into posix_memalign(3) is a possibility
for the future.
Change-Id: Ic5f74b14be33f8bc188fe7236c55e15c36a23fc7
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This makes it more useful in all the Qt apps that don't set it,
given that it's used internally by QTemporaryFile, QTemporaryDir,
QStandardPaths, QDBus, QAccessibleApplication, etc.
Qt4 compatibility in the deprecated QDesktopServices is preserved,
no fallback there.
Change-Id: I584463507cf917a3720793c6bd45d07c60f8356c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
There isn't really a need for the dependency as LanguageChange events can be
caught in QObject::eventFilter, directly.
Change-Id: I39778fbe1663924d97705b514ae399cfd3749776
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
For all practical purposes, the fallback introduced here returns the
desired value. Having a fallback enables unconditional use of Q_ALIGNOF.
For compilers that provide native support for it, Q_ALIGNOF is otherwise
#defined in qcompilerdetection.h.
Change-Id: Ie148ca8936cbbf8b80fe87771a14797c39a9d30c
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
We are running out of type ids for built-in types, 255 is not enough.
QMetaType already contains about ~70 types, situation is maybe not
tragic now, but there is a great chance that we will want to add more
built-in types from different modules like jsondb or declarative. Then
it might be tight, because we are not allowed to reorganize type ids
(it would be a binary incompatible change).
This change was not possible up to now. Old moc generated code assumes
that type id can be safely stored in 8 bits.
This is source compatible change.
Change-Id: Iec600adf6b6196a9f3f06ca6d865911084390cc2
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
