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* Revert "QObject: simplify part of connection logic"Fabian Kosmale2020-10-271-0/+20
| | | | | | | | | | | | | | | This reverts commit 1918c689d78b0f6a718343e7ebceb387acc32a97. The template gets always instantiated in QObjectPrivate::connect, even if the connection types is not Qt::(Blocking)QueuedConnection. For non-queued connections we however support using incomplete types in connect. The only way to fix this would be to make the connection type a template parameter of QObjectPrivate::connect (or at lesat pass some compile time constant indicating "blocking"-ness) along, so that we can use if constexpr instead of if. As all involved classes are private, we can postpone investigating this solution to 6.1 Change-Id: Ieffaf015f8e60ca6ac6f85eb9e2756e480060b4f Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix tst_QDeadlineTimer::stdchrono() flaky testJarek Kobus2020-10-272-53/+34
| | | | | | | | | | | | | | | | This patch reverts the last attempt to fix it: 4a1de178c9cc891560f38d64d89074799b0fa0e1. In addition, instead of using imprecise QTest::qSleep() we trigger a single shot PreciseTimer twice and gather the measurements in lambdas. We wait for lambdas to be executed - we give it twice as much time as is in theory needed. Afterwards we verify all the data collected in lambdas. Fixes: QTBUG-82825 Change-Id: Ib691f5f23a92fb8b41a24f7b603981d9c9450ddc Reviewed-by: Andrei Golubev <andrei.golubev@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* Deprecate QVariant::TypeLars Knoll2020-10-232-7/+15
| | | | | | | | | It's been obsolete for a long time already. Make sure the compiler now warns about it and remove all remaining uses in qtbase. Change-Id: I0ff80311184dba52d2ba5f4e2fabe0d47fdc59d7 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Do not store non relocatable types in QVariants internal storageLars Knoll2020-10-231-1/+26
| | | | | | | | | | | This mostly reverts change 76e8e8e9c8093f093cb9f37d61d273f43398fefb. The reason is that storing non relocatable types inline in QVariants storage would implicitly make QVariant non relocatable. Fixes: QTBUG-87686 Change-Id: I2a09b1dcdd907d60085dccf17f987086dcba878c Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Rename the QMetaType::MovableType flag to RelocatableTypeLars Knoll2020-10-231-2/+2
| | | | | | | Keep this in sync with the changes we have done in QTypeInfo. Change-Id: Iaacb0f3cc5c46d3486084a1f6eca480a233d5e1a Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Use qmetaobject_p.h's MetaObjectFlag in QMetaObjectBuilderEdward Welbourne2020-10-202-3/+3
| | | | | | | | This saves duplicating them with its own flags. Task-number: QTBUG-85700 Change-Id: I9e938322fd787282cfd9f941f83af8c0d76aaa9d Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QAssociativeIterable: Unwrap variants on value()Ulf Hermann2020-10-191-0/+14
| | | | | | Fixes: QTBUG-87688 Change-Id: I66515eaa1217c34f003648af6423b318b54977c4 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QAssociativeIterable: Add methods to add/remove keys and valuesUlf Hermann2020-10-191-0/+10
| | | | | | | | This way we can actually modify the container. Previously the interface was rather useless. Change-Id: I278aae46999862ada115c9066a010d7de5cde4ff Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QMetaContainer: Consistently coerce typesUlf Hermann2020-10-191-43/+84
| | | | | | | | | | | | | | | The high-level iterable interfaces should coerce the types of most QVariants passed to the expected ones. To do this, move the type coercion code into qvariant.{h|cpp} so that it is available to the QVariantRef specializations. The exception are variants passed to the find() functions of associative iterables. Here, we should not coerce values we cannot convert to the default-constructed keys. Instead we return end() in such cases. Fixes: QTBUG-87687 Change-Id: I0bd4e5c4e4e270dd3bf36cb3fb115794828077f2 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QProperty: Add value() and setValue() to QBindableUlf Hermann2020-10-191-0/+3
| | | | | | | | This simplifies code that would otherwise need to use the setter and getter in addition to the bindable. Change-Id: Iec6510b4f578f5b223c63b3a0719257a0cf2463d Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Fix compile time type normalization codeLars Knoll2020-10-142-4/+42
| | | | | | | | | | | | | | | | | | | | | Use a simpler constexpr to generate type name on gcc This works around an ICE on gcc in release mode when compiling with PCH enabled. As the type we're getting from Q_FUNC_INFO is already in a somewhat normalized form, this requires significanlty less processing and esp. not a recursive constexpr method which I suspect triggers the ICE. Fix integer type conversions to also properly normalize long long values (to q(u)longlong. Make sure the mapping also works on MSVC, where long long types get mapped to __int64. Also, normalize unsigned short and unsigned char to ushort and uchar, respectively, to follow the convention set by uint and ulong. Add some test cases to verify the mappings. Change-Id: I3dec5764450bf22ab6f066597803c3f46c2cd5ac Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Handle notifier list modification during iterationFabian Kosmale2020-10-121-0/+53
| | | | | | | | | | | | | | As propertyobservers can execute arbitrarily complex code, they can also modify the obsever list in multiple ways. To protect against list corruption resulting from this, we introduce a protection scheme which makes the list resilient against modification. A detailed description of the scheme can be found as a comment in QPropertyObserverPointer::notify. Task-number: QTBUG-87153 Change-Id: I9bb49e457165ddc1e4c8bbdf3d3c9fbf5ff27e94 Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Allow getting a const pointer out of a variant containing pointerFawzi Mohamed2020-10-081-0/+12
| | | | | | | | | | | | | Currently A a; QVariant::fromValue(&a).value<const A*>() == nullptr; Still casting non const to const is safe, and worked in Qt5. After this change A a; QVariant::fromValue(&a).value<const A*>() == &a; Change-Id: I257049d084c712b00a338a2943d379aa478e0981 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Another round of replacing 0 with nullptrAllan Sandfeld Jensen2020-10-078-58/+62
| | | | | | | | | This time based on grepping to also include documentation, tests and examples previously missed by the automatic tool. Change-Id: Ied1703f4bcc470fbc275f759ed5b7c588a5c4e9f Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
* Fix ChangeHandler notification for eager propertiesFabian Kosmale2020-09-301-2/+1
| | | | | | | | | | | | | | ChangeHandler's evaluated the binding to detect if the value actually changed. This is a valid strategy for lazy bindings, but eager bindings were already evaluated at that point, and thus the change would not be detected. Change the binding loop test, so that there isn't a fixpoint in the binding loop, and we can still detect it. Changing the binding loop detection code to deal with this case is left as an exercise for the future. Change-Id: Ia5d9ce2cd98a5780e69c993b5824024eb186c154 Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* QVariant: Change metatype in convert() even on failureFabian Kosmale2020-09-301-1/+12
| | | | | | | | | | | | | | The documentation of convert promised that “If the cast cannot be done, the variant is still changed to the requested type”. This was not the case so far, because we returned too early if canConvert returned false. This commit changes the behavior of the method to reflect its documentation. The documented behavior seems more useful than the alternative of not changing the metaType, at least for common use cases inside qtdeclarative. Change-Id: I09b5a5efb7344e76e93de278e35c7fb2b2f87dcd Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
* Disable moving of QPropertyLars Knoll2020-09-291-99/+33
| | | | | | | | | The semantics are not very intuitive, and it opens a can of worms with regards to what should happen with observers that observe that property. Change-Id: I6fb00b7693904b968224cc87d098bbd0ea776ba3 Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* QProperty: fix QBindingStoragePrivate::reallocate related codeFabian Kosmale2020-09-291-0/+36
| | | | | | | | | | In the internal hash map implementation, we have to ensure that the index is in the interval [0, size - 1]. Moreover, in setBinding we have to refetch the binding storage in case a reallocation happened. Change-Id: I11c6264f16537699c8908b647e2355a39ce87648 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Prevent endless markDirtyAndNotifyObservers <-> notify loopFabian Kosmale2020-09-281-0/+32
| | | | | | | | | | | | Before we had the option of eager evaluation, we were able to use the dirty flag to detect whether we are recursing. However, eager properties will lead to a evaluateIfDirtyAndReturnTrueIfValueChanged call, and that in turn will clear the dirty flag. Introduce a new member to detect that situation, and set the bindings error state to BindingLoop if we detect that kind of loop. Change-Id: If40b93221848bd9e9422502318d992fad95b0b74 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* tst_qmetacontainer: Remove non-existing typeflags.bin from build systemUlf Hermann2020-09-252-6/+0
| | | | | | Change-Id: Icb1668493447e478f539016f330fe58c79dde454 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io> Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
* CMake: Regenerate projects to use new qt_internal_ APIAlexandru Croitor2020-09-2334-127/+45
| | | | | | | | | | | Modify special case locations to use the new API as well. Clean up some stale .prev files that are not needed anymore. Clean up some project files that are not used anymore. Task-number: QTBUG-86815 Change-Id: I9947da921f98686023c6bb053dfcc101851276b5 Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* CMake: Regenerate projectsAlexandru Croitor2020-09-222-4/+10
| | | | | | | | | Clean up the state of the projects, before changing the internal CMake API function names. Task-number: QTBUG-86815 Change-Id: I90f1b21b8ae4439a4a293872c3bb728dab44a50d Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
* Remove default ctor for QIterableUlf Hermann2020-09-221-4/+4
| | | | | | | MSVC has strange problems with it and we don't actually need it. Change-Id: I2c443946d52d475208800f310b5f910da165c99b Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Cleanup API of QMimeDataLars Knoll2020-09-213-2/+13
| | | | | | | | | | | | | Do not use QVariant::Type anymore, instead use QMetaType For some reason, this pushed the qvariant autotest over the limit where MSVC requires the /bigobj flag, so add that one. [ChangeLog][QtCore][QMimeData] The signature of the virtual retrieveData() function has changed and now takes a QMetaType instead of a QVariant::Type. Change-Id: Ib46773bd731ee2177b1ef74d8162d744be7017ef Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
* QAbstractEventDispatcher: change event dispatcher timer interval to qint64Liu Yang2020-09-211-1/+1
| | | | | | | | | Resolve remaining Qt6 TODO [ChangeLog][QtCore][QAbstractEventDispatcher] The signature of the abstract virtual registerTime function now takes a qint64 value for the interval parameter. Change-Id: I10166ad5cfb455edc404d465a3731ff094a8977e Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
* QMetaType: Allow registration of mutable views and register iterablesUlf Hermann2020-09-191-3/+42
| | | | | | | | | | | | | | | In order to modify a container through an iterable, we need the original container to be mutable. The iterable, then, is not a conversion of the container, but rather a view on the container. The concept may be extended to other types. In order to facilitate this, provide a set of methods in QMetaType and QVariant similar to the convert family. The new methods are non-const and expect the original value to stay available during the life time of the view. Change-Id: I363621033f7fc600edcea2acb786820ccba49c86 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Extend QSequentialIterable and add QAssociativeIterableUlf Hermann2020-09-191-115/+177
| | | | | | | | | And add mutable iterators. This requires some refactoring of the existing iterators. Task-number: QTBUG-81716 Change-Id: I61b3a3e8c0df5fd449679257a29d9f0c3d19c4f0 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Fix warning about discarded return value in QTranslator testVolker Hilsheimer2020-09-171-13/+13
| | | | | | | | Use QVERIFY in test functions, and (void)tr.load outside. Change-Id: I18d2eb3aeaf00f9f2bbe75d0a2d8b12569b541e1 Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Reviewed-by: Jarek Kobus <jaroslaw.kobus@qt.io>
* QEventDispatcherWin32: create internal window on constructionAlex Trotsenko2020-09-162-0/+43
| | | | | | | | | | | | | | | | | When QCoreApplication object is instantiated, creation of the internal message window is delayed until QEventDispatcherWin32::processEvents() is called or socket/event notifier is registered. But, if the user uses a native event loop, posted events are not delivered and timers do not work. This problem was fixed in a4ac4b326318ed9034466305222280ed8d1651b5 for QWindowsGuiEventDispatcher in the same way. So, the risk of regression is minimal. Change-Id: I7bbb721d96046f64d21a7b0e553e46798b37189c Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
* Fix tst_QElapsedTimer::elapsed() flaky testJarek Kobus2020-09-151-11/+23
| | | | | | | | | | | | | | | Instead of using imprecise QTest::qSleep() to estimate the elapsed time, we trigger a single shot PreciseTimer and gather all the data in lambda. We wait for lambda to be executed - we give it twice as much time as is in theory needed. Afterwards we verify all the data collected in lambda. Task-number: QTBUG-82903 Change-Id: I0147b7cd2aaf4bf58a216caff167d2db8712541a Reviewed-by: Andrei Golubev <andrei.golubev@qt.io> Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io> Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* CMake: Fix building with -DQT_FEATURE_gui=OFFAlex Richardson2020-09-152-3/+5
| | | | | | | | | | Some CMake files currently assume that QtGui is always enabled and we get a configure-time failure without these changes. Task-number: QTBUG-86053 Change-Id: I28e32c180c32221f32519017bac6b518a19d5983 Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io> Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
* Add a QMetaAssociationUlf Hermann2020-09-152-27/+288
| | | | | | | | | | This requires refactoring of QMetaSequence, as they share a lot of common functionality. QMetaAssociation provides a low level interface to an associative container. Task-number: QTBUG-81716 Change-Id: I273e00abd82f1549ba8803c323d82aa3a2d12ded Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Remap QMetaType ids to create more space for builtin typesLars Knoll2020-09-121-1/+1
| | | | | | | | | | | We were starting to run out of space for builtin core types. Remap the type id's to create lots of additional space. We now reserve the first 64k id's for Qt, and have 16k id's for Qt Core. That should hopfully be enough for a while ;-) Fixes: QTBUG-85914 Change-Id: I0dab6bf23652e46a9557d9b38af7990b68c572b6 Reviewed-by: Alex Blasche <alexander.blasche@qt.io>
* cmake: Re-enable qcoreapplication and qtimer testsTor Arne Vestbø2020-09-124-2/+95
| | | | | | | | They were disabled in ad0e3e26fabe0574889c5cf3a26a145a7f5d9c98, but that was probably accidental. Change-Id: Ia9cbccfbeecfe84768c3465f5699ed44b7f932a5 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
* Provide methods for adding values to a sequential iterableUlf Hermann2020-09-122-9/+22
| | | | | | | | | | | Provide functionality to add and remove values, so that you can use a sequential iterable as stack or queue if the underlying container supports this. To this end, provide a way to specify whether the value should be added or removed at the beginning or the end of the iterable. Change-Id: If63d302f3ca085e56d601116ce4dfaa6b94a0c4f Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
* QMetaContainer: Add an "input" iterator capabilityUlf Hermann2020-09-121-2/+4
| | | | | | | | | For completeness' sake we should expose this. The iterators provided by QIterable and friends will check the category at runtime, and should give sensible feedback. Change-Id: I778894f340c862f79a18c6c5607bcbba98dd7598 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Rename QMetaSequence's "elements" to "values"Ulf Hermann2020-09-112-45/+45
| | | | | | | | | | This is so that they are in line with the "value_type" usually found in containers. Associative containers have "key_type" and "mapped_type" and we will use those names for access to elements in QMetaAssociation. Using "value" as name for sequential containers improves consistency. Change-Id: I628b7e1446bb2d56843b843bca72d279a6b247e6 Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Remove most compiler warnings about missing overridesLars Knoll2020-09-1110-59/+63
| | | | | | | | | | | | Remove around 1000 compiler warnings about missing overrides in our auto tests. This significantly reduce the compiler warning noise in our auto tests, so that one can actually better see the real problems inbetween. Change-Id: Id0c04dba43fcaf55d8cd2b5c6697358857c31bf9 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
* tst_QTimer::remainingTime(): get rid of QTest::currentTestFailed()Jarek Kobus2020-09-101-8/+11
| | | | | | | | | | | | | Looks this is redundant in fact and unneeded. The check can never be evaluated to true, since if so, it would mean it had failed in the previous iteration, in which we already handled the exit from the loop. Fixed also some comments. Task-number: QTBUG-83419 Change-Id: I4fe56bfac39cd58b1166967f3ccb80cdff882748 Reviewed-by: Andrei Golubev <andrei.golubev@qt.io> Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
* Fix flaky QTimer::remainingTime() testJarek Kobus2020-09-101-18/+44
| | | | | | | | | | | | | | | | | | | | | | | | | | | Before, we used not so accurate QTest::qWait(50) to measure the accuracy of more precise timer's interval. In addition, the checked range for remainingTime (50, 200) was probably wrong, since by definition it couldn't be more than 150, as we started the timer with interval of 200 and waited at least 50. In this fix we have additional "tester" timer to measure remainingTime of "tested" timer. The "tester" is a singleShot timer with interval of 50, and is started together with "tested" timer. Whenever the "tested" timer timeouts, it restarts the "tester" timer - this is done desired number of times (2 by default, like in the original test). The test itself lies now inside tester's lambda. We fix the tested range (at least 1, no more than 150). The minimum value could in theory be greater, but it's enough to test that it's not overdue. Finally, we wait for expected number of test runs. We give it twice as much time as is in theory needed. Task-number: QTBUG-83419 Task-number: QTBUG-58519 Change-Id: I43836d787d804f22bb66515ebb215d040189c4f3 Reviewed-by: Andrei Golubev <andrei.golubev@qt.io> Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
* Deliver Quit event when calling QCoreApplication::quit()Tor Arne Vestbø2020-09-072-0/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of QCoreApplication::quit() directly calling exit(0), which would leave QGuiApplication and client code out of the loop, we now send the Quit event, and let it pass through event delivery, before finally ending up in QCoreApplication::event(), where we call exit(0). This has the advantage that QGuiApplication can ensure all windows are closed before quitting, and if any of those windows ignore the close event the quit will be aborted. This aligns the behavior of synthetic quits via QCoreApplication::quit() with spontaneous quits from the platform via QGuiApplicationPrivate::processApplicationTermination. Clients who wish to exit the application without any event delivery or potential user interaction can call the lower level exit() function directly. [ChangeLog][QtGui] Application termination via qApp->quit() will now deliver Quit events to the application, which in turn will result in application windows being closed as part of the application quit, with an option to cancel the application quit by ignoring the close event. Clients who explicitly want to exit the application without any user interaction should call QCoreApplication::exit() explicitly. Task-number: QTBUG-45262 Task-number: QTBUG-33235 Task-number: QTBUG-72013 Task-number: QTBUG-59782 Change-Id: Id4b3907e329b9ecfd936fe9a5f8a70cb66b76bb7 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> Reviewed-by: Lars Knoll <lars.knoll@qt.io>
* Get rid of hasPendingEvents() and flush()Lars Knoll2020-09-061-4/+0
| | | | | | | They are unused. Change-Id: I77383f2be45551401ed9c2f88285511134cc8b0d Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
* Reimplement QSequentialIterable using QMetaSequenceUlf Hermann2020-09-032-33/+50
| | | | | Change-Id: Ie721a5f0caa697c4bf15a81f3762cf79d3c54f5a Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* QVariant: Fix conversion codeFabian Kosmale2020-09-021-0/+38
| | | | | | Fixes: QTBUG-86330 Change-Id: Ib89dcf1195e0081b4c4e2845f90c52c612e5911a Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
* Fix QPropertyAlias to work with all kinds of propertiesLars Knoll2020-09-021-0/+37
| | | | | | | | | | So far QPropertyAlias was limited to working with QProperty<T>. Change the implementation, so it can be constructed from any property or even a QBindable<T>. Change-Id: I175cffe94a9ef332367d39faa976eb065b0e6ffe Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org> Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Make bindings introspectable through mocLars Knoll2020-09-021-2/+50
| | | | | | | | | | | | | | | Add a new BINDABLE declaration to the Q_PROPERTY() macro that tells moc where to find the QBindable for the property. Add a QUntypedBindable base class to QBindable<T> that gives access to generic functionality and checks argument compatibility at runtime. QBindable<T> will still do static checking at compile time. Add QMetaProperty::isBindable() and QMetaProperty::bindable() to be able to dynamically access the binding functionality. Change-Id: Ic7b08ae2cde83fd43e627d813a886e1de01fa3dc Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Add QObjectCompatPropertyLars Knoll2020-09-021-0/+76
| | | | | | | | | | | | Add a compatibility property class that makes porting to the new property system as simple as possible. Binding evaluation for those compat properties is eager, as we do not control possible side effects of the code in the existing setters. Change-Id: Ic56347abb49e40631ec73e88c6d40d4bdb05ca29 Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Add support for computed propertiesLars Knoll2020-09-021-0/+14
| | | | | | | | | | Add a QObjectComputedProperty. This class doesn't store the data itself, instead relies on a getter method to compute it's value. As the property is read-only, one can not bind to it, but it can be used in other property bindings. Change-Id: I0f6bffdd9f80f1d0829826f93a47257f2b3127af Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
* Add support for bindable properties to QObjectLars Knoll2020-09-021-12/+99
| | | | | | | | | | | | | | | | Add Q_OBJECT_BINDABLE_PROPERTY() macro that can be used to define a bindable property inside QObject. The macro and the class behind it creates storage for a property that is bindable inside a QObject or QObjectPrivate. The property only uses as much space as the data contained, ie. it has no storage overhead, as long as no bindings are being used. Bindings are being stored and looked up in the QBindingStorage associated with the owning object. Change-Id: I1dadd7bddbad6fbf10cfa791d6461574b9db82dd Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
* Ground work for bindable properties in QObjectLars Knoll2020-09-021-0/+112
| | | | | | | | | | | | | | Add a private QBindableInterface and a public QBindable<T> class, that will be the API interface for accessing bindings for properties in QObject. The QBindable class gives access to all aspects of the property related to bindings. This includes setting and retrieving bindings, installing observers and creating a direct binding on this property. Change-Id: Iaead54d2bd6947bd2cda5052142b2a47dd8bf7c4 Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>