The only thing we need to modify at runtime is the typeId and that can
be mutable. This way we can have a constexpr ctor for QMetaType which
hopefully makes the importing and exporting of related symbols less
fickle.
On Windows we cannot make QMetaTypeForType constexpr as that leads to
mysterious errors in other places. Until we figure out why that is, we
just leave this class as non-constexpr.
This reveals that qcoreapplication.h and qvariant.h are using QDebug
without including it. We now get template instantiation errors. Include
qdebug.h to avoid that.
Change-Id: If1bf0437ada52459c59c6fa45bab3d22dfb0bc92
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
It is lossy, so should be requested explicitly, using a dedicated
fromPixmap factory function.
Deprecate the constructor and assignment operator, and make the
constructor explicit.
[ChangeLog][QtGui][QBitmap] Implicitly constructing and assigning
to a QBitmap from a QPixmap has been deprecated, and the respective
constructor has been made explicit. Use the fromPixmap factory
function instead.
Change-Id: I68ce85b26c901415137b664a1db687021d48bae0
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
C++20 via P1120 is deprecating arithmetic operations between
unrelated enumeration types, and GCC 10 is already complaining.
Hence, these operations might become illegal in C++23 or C++26 at
the latest.
A case of this that affects Qt is in key combinations: a
QKeySequence can be constructed by summing / ORing modifiers and a
key, for instance:
Qt::CTRL + Qt::Key_A
Qt::SHIFT | Qt::CTRL | Qt::Key_G (recommended, see below)
The problem is that the modifiers and the key belong to different
enumerations (and there's 2 enumerations for the modifier, and one
for the key).
To solve this: add a dedicated class to represent a combination of
keys, and operators between those enumerations to build instances
of this class.
I would've simply defined operator|, but again docs and pre-existing
code use operator+ as well, so added both to at least tackle simple
cases (modifier + key).
Multiple modifiers create a problem: operator+ between them yields
int, not the corresponding flags type (because operator+ is not
overloaded for this use case):
Qt::CTRL + Qt::SHIFT + Qt::Key_A
\__________________/ /
int /
\______________/
int
Not only this loses track of the datatypes involved, but it would
also then "add" the key (with NO warnings, now its int + enum, so
it's not mixing enums!) and yielding int again.
I don't want to special-case this; the point of the class is
that int is the wrong datatype. Everything works just fine when
using operator| instead:
Qt::CTRL | Qt::SHIFT | Qt::Key_A
\__________________/ /
Qt::Modifiers /
\______________/
QKeyCombination
So I'm defining operator+ so that the simple cases still work,
but also deprecating it.
Port some code around Qt to the new class. In certain cases,
it's a huge win for clarity. In some others, I've just added
the necessary casts to make it still compile without warnings,
without attempting refactorings.
[ChangeLog][QtCore][QKeyCombination] New class to represent
a combination of a key and zero or more modifiers, to be used
when defining shortcuts or similar.
[ChangeLog][Potentially Source-Incompatible Changes] A keyboard
modifier (such as Qt::CTRL, Qt::AltModifier, etc.) should be
combined with a key (such as Qt::Key_A, Qt::Key_F1, etc.) by using
operator|, not operator+. The result is now an object of type
QKeyCombination, that stores the key and the modifiers.
Change-Id: I657a3a328232f059023fff69c5031ee31cc91dd6
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
This helps get better symmetry with the other modules,
and to unify the code paths for both conversion and
retrieving the interface for static types.
Change-Id: Icbd20de2563f36e3de20d826323acd057734abfb
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Move the type conversions from QVariant::Helper to QMetaType. Only do
this for Qt Gui in a first step.
This makes it possible to completely remove the Handler struct in
QVariant, and now allows QMetaType to also convert Gui types.
Moving the conversion of Core types into QMetaType will require
further work.
Change-Id: I061f789deca1b595d92bb29227eb54b8e71a3ee3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
That parameter is duplicating the return value, get rid of it.
Change-Id: I8d6ecee8aca90aecaf08e6d0072d83e9a08ce3d6
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
This code is now unused, as streaming operators are
registered automatically.
Change-Id: I0e48944c33a92cf1f2f158fb2dc0ca49256d7938
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use the builtin support in QMetaType instead.
Change-Id: Ifc0e88719a384aa7fb525652bada22b6f7ee1c45
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
isNull() would forward to the contained type and check that type's
isNull() method for some of the builtin types. Remove that behavior
and only return true in isNull(), if the variant is invalid, doesn't
contain data or contains a null pointer.
In addition, implement more consistent behavior when constructing
a QVariant using the internal API taking a copy from a void *.
isNull() should return true in both cases. This mainly changes behavior
for some corner cases and when using our internal API.
[ChangeLog][Important Behavior Changes] QVariant::isNull()
no longer returns true when the variant contains an object of some
type with an isNull() method, that returns true for the object;
QVariant::isNull() now only returns true when the variant contains
no object or a null pointer.
Change-Id: I3125041c4f8f8618a04aa375aa0a56b19c02dcf5
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Remove the compare method in the QVariant::Handler struct. Rely
on the generic support provided by QMetaType instead.
[ChangeLog][Important Behavior Changes][QVariant] QVariant will now use builtin support in
QMetaType to compare its content. This implies a behavioral change
for some graphical types like QPixmap, QImage and QIcon that will
never compare equal in Qt 6 (as they do not have a comparison
operator).
Change-Id: I30a6e7116c89124d11ed9052537cecc23f78116e
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
the QMetaType is represented as a pointer to a "vtable" in the form of
a QtPrivate::QMetaTypeInterface*
The recomanded use of QMetaType is to construct an object with
QMetaType::fromType. This does not require any registration.
There is still an id() function which will do some registration
for compatibility with Qt5. Also the patch does not really touch
the other extra things that can be registered (data stream operator,
comparison operator, iteratable, ...) and this still uses the previous
system.
This is only the change in QMetaType, other changes to use it in QVariant
and QMetaObject will follow
Change-Id: Iffad20085cf33f33447f58a68236013a8b60fdbf
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Helps pass it through QVariant, and needed for QML support.
Change-Id: Id161ff9b8f81ad55a7ee7a7c4c614bdf74bca4a1
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
I made a clazy automated check that replaced the use of QVariant::Type
by the equivalent in QMetaType.
This has been deprecated since Qt 5.0, but many uses were not yet removed.
In addition, there was some manual changes to fix the compilation errors.
Adapted the Private API of QDateTimeParser and QMimeDataPrivate
and adjust QDateTimeEdit and QSpinBox.
QVariant(QVariant::Invalid) in qstylesheet made no sense.
But note that in QVariant::save, we actually wanted to use the non-user type.
In the SQL module, many changes were actually reverted because the API
still expects QVarient::Type.
Change-Id: I98c368490e4ee465ed3a3b63bda8b8eaa50ea67e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Move away from using 0 as pointer literal.
Done using clang-tidy. This is not complete as
run-clang-tidy can't handle all of qtbase in one go.
Change-Id: I1076a21f32aac0dab078af6f175f7508145eece0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Move the feature to corelib so that the QMetaType enumeration
values can be properly excluded and there is no need for a
dummy class.
Use QT_REQUIRE_CONFIG in the headers of classes to be disabled.
Add headers/source files in the .pro file depending on the configure
feature in libraries and tests.
Add the necessary exclusions and use QT_CONFIG.
Task-number: QTBUG-76493
Change-Id: I02499ebee1a3d6d9a1e5afd02517beed5f4536b7
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
features.animation and features.scroller depend on the feature.
In total, this saves around 180KB from QtCore and 75KB from QtWidgets.
Change-Id: I65aac3ec4d50d62424ee33f44b99f3cfb91121d6
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
From Qt 5.7 -> LGPL v2.1 isn't an option anymore, see
http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/
Updated license headers to use new LGPL header instead of LGPL21 one
(in those files which will be under LGPL v3)
Change-Id: I046ec3e47b1876cd7b4b0353a576b352e3a946d9
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
QVariant was using QColor::name() to convert a color to string, which by
default loses alpha value. The patch is fixing the problem by always
including the alpha value in the string when required.
[ChangeLog][Core][Variant] QVariant(QColor)::toString() uses
QColor::HexArgb format when the alpha component is different from 1.
Task-number: QTBUG-37851
Change-Id: I887460c1ea151180ba99d64dd873ba9d6e2268f2
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Qt copyrights are now in The Qt Company, so we could update the source
code headers accordingly. In the same go we should also fix the links to
point to qt.io.
Outdated header.LGPL removed (use header.LGPL21 instead)
Old header.LGPL3 renamed to header.LGPL3-COMM to match actual licensing
combination. New header.LGPL-COMM taken in the use file which were
using old header.LGPL3 (src/plugins/platforms/android/extract.cpp)
Added new header.LGPL3 containing Commercial + LGPLv3 + GPLv2 license
combination
Change-Id: I6f49b819a8a20cc4f88b794a8f6726d975e8ffbe
Reviewed-by: Matti Paaso <matti.paaso@theqtcompany.com>
The handling of the null QPolygonF case was not correct as it would
always be seen as valid. This ensures it is treated in the same way as
QPolygon when it is in fact null.
[ChangeLog][QtGui][QPolygonF] When a QVariant holds a QPolygonF()
then it will be correctly seen as a null QVariant.
Change-Id: Icae34f513c3a8e1dd3f50cb64a3d13ae7c636cc4
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
This makes it so that two QVariants created from the same
QIcon (or from QIcons that were assigned one from eachother)
compare to true.
Unfortunately creating two QIcons with the same path and
comparing them still gives false as they have different cacheKeys
Change-Id: Iafe2bc4082a830f9c6469f083c26a7abbe4b35c5
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Change copyrights and license headers from Nokia to Digia
Change-Id: If1cc974286d29fd01ec6c19dd4719a67f4c3f00e
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@digia.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>
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>
The class is private and shouldn't pollute global namespace.
Change-Id: Ib44473fd72e5a70096eeff1662e88b29263d19c6
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
Unify TypeDefinitions specializations. I'm not aware of any reason why
QVariant should have a separate set of supported types during
bootstrapping phase. It would cause only crashes.
As a side effect the patch reduces size of core and gui libraries.
Change-Id: I5140d9d3daee39a0171bc718bf46dab6b28085ec
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Reviewed-by: João Abecasis <joao.abecasis@nokia.com>
QVariant handlers can not be unregistered. We are not able to guarantee
that such operation is safe and we do not want to.
Change-Id: Id9a12e6a8c750110e4a08eab1de3e07e5c408675
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QVariant::Type is marked as obsolete. It is not possible to get rid of
it completely, in a source compatible way, but at least we can remove it
safely from a method arguments list.
Change-Id: I26b58099bfa6d32f3a583a8ae0047f0bb36bcd0d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
No supported compiler defines it, and it was not used consistently
so it didn't work anyway.
Change-Id: Icc9e911e22daaedaee3d9316c15d19be26cd2e72
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
If you repeat a typo often enough, it becomes the right spelling.
But 49 times is definitely not enough :-)
Change-Id: I7c0bb29e68e4bff5c67277f9874df8b3ab8b2b54
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
As in the past, to avoid rewriting various autotests that contain
line-number information, an extra blank line has been inserted at the
end of the license text to ensure that this commit does not change the
total number of lines in the license header.
Change-Id: I311e001373776812699d6efc045b5f742890c689
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
New implementation fixes some commented code marked as FIXME.
Change-Id: If8f5bebedd65bcf8f839d804c2022ca79ef82ddf
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QVariant implementation is based on delegation to a handler. The handler
has rather simple construction, it is a set of function that implements
a switch statement over known types and redirects calls to a right
method of an encapsulated types instance. Unfortunately after qt
modularization project, it is not easy to use types directly from
different modules, as they can be undefined or completely unaccessible.
Which means that each module has to implement own handler to cooperate
correctly with QVariant. We can suspect that list of modules known to
QVariant will grow and it is not limited to GUI, Widgets and Core,
therefore it would be nice to have an unified, from performance and
source code point of view, way of working with handlers.
This patch is an attempt to cleanup handlers. Keynotes:
- Each handler is working only on types defined in the same module
- Core handler implements handling of primitive types too
- Custom types have an own handler
- Each handler is independent which means that dispatch between handlers
is done on QVariant level
- Handlers might be registered / unregistered using same interface
Change-Id: Ib096df65e2c4ce464bc7a684aade5af7d1264c24
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
QMetaTypeInterface has to be POD because it is constructed in a static
array. Constructors in POD types are not allowed so we will use a macro
instead.
Change-Id: Iab9ae776dfe4dcd7148558f02d6181c5917aa5c3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Ulf Hermann
Volker Hilsheimer
Giuseppe D'Angelo
Lars Knoll
Olivier Goffart
Simon Hausmann
Qt Forward Merge Bot
Jarek Kobus
Allan Sandfeld Jensen
Friedemann Kleint
Tasuku Suzuki
Marc Mutz
Jani Heikkinen
Jędrzej Nowacki
Matti Paaso
Frederik Gladhorn
Andy Shaw
Albert Astals Cid
Sergio Ahumada
Iikka Eklund
Sergio Ahumada
Jędrzej Nowacki
Stephen Kelly
Jason McDonald
Denis Dzyubenko