When QWidget is being destroyed, its winId is cleared, and
a QEvent::WinIdChange is sent. If a listener of this event
reacted by calling winId() again, we might crash.
A crash can be observed when this child widget is destroyed in dtor of its parent.
E.g. here is a hierarchy of widgets:
1:QWidget
2:QObject
3:QWidget
4:QWidget
If a listener subscribed for WinIdChange events from (4),
and there is a connection to destroy (4) when (2) is destroyed.
This will lead to infinite loop:
1. QWidget::~QWidget
2. QWidget::destroy
3. QWidgetPrivate::setWinId(0)
4. QCoreApplication::sendEvent(q, QEvent::WinIdChange);
5. eventFilter
6. QWidget::winId
7. QWidgetPrivate::createWinId (this=0x555555957600) at kernel/qwidget.cpp:2380
8. QWidgetPrivate::createWinId (this=0x55555596b040) at kernel/qwidget.cpp:2387
9. QWidget::create (this=0x5555558f2010, window=0, initializeWindow=true, destroyOldWindow=true) at kernel/qwidget.cpp:1163
10. QWidgetPrivate::createWinId (this=0x55555596b040) at kernel/qwidget.cpp:2387
11. QWidget::create (this=0x5555558f2010, window=0, initializeWindow=true, destroyOldWindow=true) at kernel/qwidget.cpp:1163
12. QWidgetPrivate::createWinId (this=0x55555596b040) at kernel/qwidget.cpp:2387
Fixes: QTBUG-81849
Change-Id: Ib4c33ac97d9a79c701431ae107bddfb22720ba0d
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
When the tested widget has a focus proxy, then we should check if the
current focus widget is not the same as that focus proxy before setting
it to be the widget that gets focus. This ensures that when back-tabbing
from a widget like QDoubleSpinBox that it will not get stuck inside that
widget and will back-tab to the next correct one.
Fixes: QTBUG-81097
Change-Id: I3f689c7715da7f3ce8c3d2f616041528f5778a2f
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
The platform window may create or destroy its surface from other entry
points than the QWidget API, in which case QWidget needs to sync up
its own state to match. In particular WA_WState_Created and the winId
needs to be recomputed.
Fixes: QTBUG-69289
Fixes: QTBUG-77350
Change-Id: I769e58ead3c2efcf8c451c363108848feade9388
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
When the geometry of a hidden widget was set with setGeometry(),
WA_PendingMoveEvent and WA_PendingResizeEvent were set unconditionally
even if the crect already had the correct value. This lead to
unneeded Move/Resize events within sendPendingMoveAndResizeEvents().
Fixes: QTBUG-75475
Fixes: QTBUG-79906
Change-Id: Ibbe03882f039948b6b7c04887420741ed2e9c0f7
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
When a window is closed, then it will cause the child windows to be
closed as well as a result. Therefore in order to ensure that they are
shown again as a result, we need to remove the WA_WState_ExplicitShowHide
attribute if the widget was not already hidden before. This enables us to
test for this attribute when calling showChildren(), so that if the
window has a windowHandle then we can make sure that this widget is shown
again.
Fixes: QTBUG-73021
Change-Id: I1186242b889899dfcd38d782a67567348e2055ee
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
QDesktopWidget is marked as obsolete in docs, but it is not yet
completely deprecated, some of its methods are still in use.
Replace uses of the following methods marked as obsolete:
- QDesktopWidget::screenNumber(QWidget*) -> QWidget::screen()
- QDesktopWidget::screenGeometry(QWidget*) -> QWidget::screen()->geometry()
- QDesktopWidget::availableGeometry(QWidget*) -> QWidget::screen()->availableGeometry()
Task-number: QTBUG-76491
Change-Id: I2cca30f2b4caa6e6848e8190e09f959d2c272f33
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Since 9c8d1ca18b, the test would fail
when High DPI scaling is enabled:
FAIL! : tst_QWidget::translucentWidget() Compared QImages differ in device pixel ratio.
Actual (actual): 2
Expected (expected): 1
.\tst_qwidget.cpp(8913) : failure location
Set the device pixel ratio on the expected pixmap to fix this.
Change-Id: I517495931c2c6b1f49125bb4b5836e304bdbf545
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
The minimum supported version is Windows 7. Remove
QOperatingSystemVersion::WindowsVista added by
b0cd007335 and replace with "true"
wherever it was used.
Change-Id: I08c0208467b655a921b6773f77d8bc099be69031
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Base it on QWidgetPrivate::associatedScreen(), but make a larger
effort to find a screen in case the widget is not shown yet.
Rename QDesktopScreenWidget::screen() to something else to avoid
clashes.
Task-number: QTBUG-62094
Task-number: QTBUG-53022
Change-Id: I36ba5ef5f0645a4ac89da0b38a391f7057b2f49c
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Quoting a blog from 2009, "this class is responsible for figuring out which parts
of the window surface needs to be updated prior to showing it to screen, so it's
really a repaint manager."
https://blog.qt.io/blog/2009/12/16/qt-graphics-and-performance-an-overview/
What better time to do the rename than 10 years later!
Change-Id: Ibf3c3bc8c7df64ac03d72e1f71d296b62d832fee
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
It was added for Symbian almost 10 years ago (d7057e7c1f1a), for a somewhat
dubious use-case. The Symbian code is since long gone (ae30d7141), so the
remaining pieces are just adding complexity to the already intricate workings
of the QtWidgets backingstore/painting logic.
Task-number: QTBUG-8697
Change-Id: I82af610a8ac26719c588ac63f06b4501f59b400d
Reviewed-by: Paul Olav Tvete <paul.tvete@qt.io>
(cherry picked from commit 2e0b0be2ce)
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
- Replace the usages of deprecated APIs by corresponding
alternatives in the library code and documentation.
- Build docs for deprecated APIs conditionally, based on deprecation
version. Remove the docs of methods deprecated since 5.0.0, these
methods are not compiled anymore.
- Modify the tests to make them build when deprecated APIs disabled:
* Make the the parts of the tests testing the deprecated APIs to
be compiled conditionally, only when the corresponding methods
are enabled.
* If the test-case tests only the deprecated API, but not the
corresponding replacement, add tests for the replacement
Task-number: QTBUG-76491
Task-number: QTBUG-76540
Task-number: QTBUG-76541
Change-Id: I6aaf0a1369c479fb880369a38f2b8e1e86b46934
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
QApplicationPrivate::focus_widget became a dangling pointer
in the following scenario:
A widget first gets focus and later on gets a focus proxy.
QApplicationPrivate::focus_widget was still pointing to the initial widget.
Upon destruction, QWidget::hasFocus() [which follows to the focus proxy
and then compares with focus_widget] was therefore false for both
widgets. So QWidget::clearFocus() didn't call
QApplicationPrivate::setFocusWidget(0) for either of them. As a
result, focus_widget remained set, and became dangling.
In real life, this happened with a QWebEngineView, which the application
gave focus to upon creation. At that time it doesn't have a focus proxy
yet. That happens later, in QWebEngineViewPrivate::widgetChanged.
https://bugs.kde.org/show_bug.cgi?id=381793
Change-Id: Ifee610bb76a2d4d2797b98ece9bffe5fffe3c6a6
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
The public QWidget::create still has them, but we don't need to
propagate them on - that just makes debugging the window creation
flow harder.
The window argument to QWidget::create is technically used to
guard an early exit in the function, but to keep behavior the
same we leave it for now.
Change-Id: Ic0287575aa25f1272e216adc1b75e34d6f55f6d9
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
- Replaced QOperatingSystemVersion::WindowsVersion,
QSysInfo::windowsVersion(), QSysInfo::macVersion(),
QSysInfo::MacintoshVersion with QOperatingSystemVersion::current().
- Added QOperatingSystemVersion::WindowsVista for convenience, as it
is used in lots of places.
Change-Id: If9c4ac496005b2e70b5c70be160747afa74b98c1
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
RenderHint::HighQualityAntialiasing and NonCosmeticDefaultPen are
obsolete since Qt5 but not marked as such. Therefore add
Q_DECL_ENUMERATOR_DEPRECATED_X now so those two enumerations can be
removed with Qt6.
[ChangeLog][QtGui][QPainter] HighQualityAntialiasing and
NonCosmeticDefaultPen are marked as deprecated and don't have an effect
anymore
Change-Id: Ib0c966a078a1d23d492d0255288e2066c50e87b6
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
QWidgetPrivate::updateIsTranslucent sets the surface format of the
window with the alpha based on the translucency attribute, so we need
to call this function when the attribute value changes. The test can
confirm that the window's requested surface format has changed, we
can't rely on what is actually set, and don't have to rely on
hard-coded values like 8bit alpha.
While WA_NoSystemBackground needs to be set for WA_TranslucentBackground
to have an effect, we can't clear the attribute when clearing
translucency (as it might have been set explicitly).
Change-Id: I238d6930b7e0488397467a4e035b5f530566a1ff
Fixes: QTBUG-60822
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
81e298a51d fixed a case where the focus
chain was screwed up when the order was already correct. This worked
correctly in most cases but not when the next focus widget of the first
one had Qt::NoFocus.
The optimization check if lastFocusChildOfFirst is the same as second is
thrown away since it now does not longer screw up the focus chain and
the save would only be four pointer assignments.
Fixes: QTBUG-75388
Task-number: QTBUG-10907
Task-number: QTBUG-68393
Task-number: QTBUG-69619
Change-Id: I581ed532156c34ea970123afd063194aab016304
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
- Move the fuzz check introduced by
6309062722 to a shared header for
reuse. Use it in in more places to account for rounding errors
introduced by odd window frame sizes when scaling is active.
- Use the test widget size to ensure windows do not violate the
minimum decorated window size on Windows when scaling is inactive
on large monitors.
Task-number: QTBUG-46615
Change-Id: Icf803a4bc2c275eadb8f98e60b08e39b2ebebedd
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
- Use nullptr
- Fix C-style casts
- Fix redundant bool expressions
- Fix else after return
- Remove unnecessary casts to int from registered enums
- Fix most signedness-related warnings
- Use range-based for
- Use correct static invocation
- Set a title on shown windows to make it possible to identify
slow tests
- Fix the class declarations, use override, member initializations
- Use Qt 5 connection syntax
- Remove unused variables
- Streamline code in some cases
Change-Id: I1350b382b0b7d0f3198039fdc78892cfa1dd498d
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Now that MSVC (presumably) supports templates, we can merge the QRect
and QRegion versions of the functions into one.
The function has been renamed to invalidateBackingStore to better
reflect what it's doing.
Change-Id: I0e94a0cabd286cf97f2ba718a42ee0425f59d3ec
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Set the inherited properties as resolved on the font, so non-default
values are passed on in contexts that does resolve logic like QPainter.
One test is updated as it actually tests what it is supposed to on
more configurations.
Fixes: QTBUG-39560
Change-Id: Ief668e992ccdc091337a259a4c1306a00e67c73f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Replace all occurrences of QApplication::set/resetOverrideCursor with
the QGuiApplication::set/resetOverrideCursor since it's a static
function of QGuiApplication.
Change-Id: Ic898ab50a7ad4ed2bc9c6acb26cf4a979c2f82af
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
This test works for me with KWin and is blacklisted on most linux platforms.
Let's try to remove the blacklisting next.
Using qWait right in front of the QTRY_VERIFY does not add any value.
Task-number: QTBUG-26424
Change-Id: I2dcd5fb3f3cbb64e190c777231b791d1ad9dd704
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
When adjusting the tab order for compound widgets, it can happen that
the order is already correct. The check for this case forgot one case
which lead to a garbled focus chain.
Task-number: QTBUG-68393
Task-number: QTBUG-69619
Task-number: QTBUG-10907
Change-Id: Ic3242746bdcf3a4db6ea8daa1498381500ca116d
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Additionally to setting the cursor position we have to make sure that
enter and leave events are triggered. As WinRT at the moment only supports
maximized/fullscreen native top level widgets, an enter or leave event has
to be triggered, every time the cursor enters or leaves the core window.
Same as is done on Windows desktop an enter event is immediately followed
by a move event even for emulated mouse events.
Change-Id: I4b9a7b07f8e24b7887619f96979a064d933788aa
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
QWidget::restoreGeometry() is calling QWidget::move() with restoredFrameGeometry,
which internally calls setGeometry() and sets positionPolicy = QWindowPrivate::WindowFrameExclusive,
which is invalid: restoredFrameGeometry is WindowFrameInclusive geometry.
QPA plugins rely on correctly set policies when interpreting x,y. QWidget::move()
was not designed for this AFAICT, so making it to accept frame geometry is
no-op. It is widely used legacy code, changing it could cause regressions.
Save/restore API was introduced in Qt 4.2, at that time we did not have APIs
like QWindow::setFramePosition(), so its unclear why geometry() was not stored
instead. The documentation also is somewhat unclear:
"[..] save the geometry when the window closes [..]"
Frame or client geometry? It does not specify. And from the code we see
that frame geometry was passed as client geometry, not making the original
intention clearer. Besides that, restoreGeometry() is full of other undocumented
assumptions where to place windows and when to fail (fortunately its easy
to write your own save/restore logic). Added a Qt 6 note in the source code.
What this patch changes:
Now we store geometry() in saveGeometry() and use that value in restoreGeometry()
by setGeometry(). This does not cause any behavior difference in window
positioning (tst_QWidget::saveRestoreGeometry still works). Geometry restored
from data saved with earlier versions of saveGeometry() might be positioned at:
x + leftMargin, y + topMargin.
This patch makes tst_QWidget::saveRestoreGeometry to always fail instead
of being flaky. Blacklisting for XCB instead of selected distros.
Also enabled excluded code paths for XCB on tst_QDockWidget::restoreDockWidget().
It does not seem to be flaky, maybe it was in 2015, but lot of things have changed
since then.
Task-number: QTBUG-66708
Change-Id: Ic86a6fd091e2c71b7550b2f476386da704253cd4
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
It's not possible to ask for window activation on Wayland, and some Wayland
compositors—such as Weston—don't give window focus to newly created window
either.
Task-number: QTBUG-62188
Change-Id: Ibebb2a14e03127fec703d79498627fccf65b2f88
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
We move QInternalMimeData to a separate file, because this class is
used, even if draganddrop is disabled. From now on, include
qinternalmimedata_p.h instead of qdnd_p.h for QInternalMimeData.
Change-Id: I594e08e2e90d574dc445119091686b4b69e4731b
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
QDesktopWidget::screenGeometry() and similar was deprecated in 5.11
and replaced by QScreen::geometry()
Change-Id: Ic630d022bc6461af78f49684c8ac9d1836d738bc
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
