The previous version was good, just not optimal. Because the input was
an unsigned 64-bit number, compilers needed to generate extra code to
deal with HW instructions that only convert 64-bit signed input. And
that was useless because a double uniformly distributed from 0 to 1 can
only have 53 bits of randomness.
The previous implementation did exactly what the Microsoft libstdc++ and
libc++ implementations do. In my opinion, those implementations have an
imperfect distribution, which is corrected in this commit. In those, all
random input bigger than 0x20000000000000 has a different frequency
compared to input below that mark. For example, both 0x20000000000000
and 0x20000000000001 produce the same result (4.8828125e-4).
What's more, for the libc++ and MSVC implementations, input between
0xfffffffffffff001 and 0xffffffffffffffff results in 1.0 (probability 1
in 2⁵³), even though the Standard is very clear that the result should
be strictly less than 1. GCC 7's libstdc++ doesn't have this issue,
whereas the versions before would enter an infinite loop.
Change-Id: Ib17dde1a1dbb49a7bba8fffd14eced3c375dd2ec
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Before this patch a very accurate drop position below
or above an index was needed. Therefore it was not that
easy to do.
This patch increases the above/below area to be about
18% of the item (still leaving the most space for the item).
An average user will likely be 2-3x faster with dropping
below or above (while not losing much when dropping on items).
[ChangeLog][QtWidgets][ItemViews] Made it easier to
drop above and below items.
Change-Id: I47f0f80c76878c17ebf3f93d0a0cc82755971c2a
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
All systems must implement it by now. If there's any system still
without it, that means it has no IPv6 support, so they can disable
QtNetwork entirely.
[ChangeLog][Deprecation Notice] Starting with Qt 5.10, IPv6 support is
mandatory for all platforms. Systems without proper IPv6 support, such
as the getaddrinfo() function or the proper socket address structures,
will not be able to build QtNetwork anymore.
Change-Id: I3868166e5efc45538544fffd14d8c28046f9191b
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Proximit events are sent to the QGuiApplication, catch them via
event filter.
Change-Id: I7f896e7d9f5c90347b9e3c708feb69abd1c5fc95
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
We were using the default ones, provided by RFC7540. It appears they are way
too restrictive and conservative: when downloading something relatively big,
a stream keeps spending the whole session/its own 'recv' windows and thus
we have to constantly send WINDOW_UPDATE frames. This significantly slows
down our HTTP/2 implementation, making it orders of magnitude slower than
HTTP/1.1. To fix this:
- We send SETTINGS_INITIAL_WINDOW_SIZE in the first SETTINGS frame
to inform our peer that per-stream WINDOW is bigger than 64Kb
- We increase the session's receive window size.
Task-number: QTBUG-63722
Change-Id: I31312fcfd5f0fc0aee6aaa5d3562cc7d1b931adc
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Error out if it's missing or broken (Mersenne Twister not present).
This ensures that we never have a low-quality random generator in Qt.
Change-Id: I0a103569c81b4711a649fffd14ec80649df7087e
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Auto-reset events are automatically reset to non-signaled when we get
notified about the signaled state. This implies that we cannot check the
event state again in activateEventNotifiers. Instead, store the signaled
state in a QAtomicInt and test and decrement that.
This amends commit 85403d0a.
Task-number: QTBUG-63555
Change-Id: I0adee3d2929783f98d91060f9106c8b5266d72fa
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Unique begins with a "y" sound, hence a unique is correct.
Change-Id: I9eb6b4d4c9ddab45af931e97c041c24edf163eca
Reviewed-by: Jake Petroules <jake.petroules@qt.io>
... so that it comments the actual code, not what this code was before.
Change-Id: Ib191b9d7bd3ae3cda39a15f0f711cb1dd3c5c2b7
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The autotest has been blacklisted for RHEL 7.1 and RHEL 7.2 earlier already
and it is still failing in 7.4.
Task-number: QTBUG-46116
Change-Id: I0f33be849513a2debaf8c093dcd413fa09b5c681
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>
Commit ba1b73175b tried
blacklisting this autotest in Windows 7 only. This however
does not work. We can't pin point blacklisting to a specific
Windows version.
Task-number: QTBUG-63122
Change-Id: I5edb5b56fd86ad194214818a838db9cfd6be2ad1
Reviewed-by: Simo Fält <simo.falt@qt.io>
This autotest has been blacklisted already in RHEL 7.1
and RHEL 7.2. This one extends it to 7.3 and 7.4.
Task-number: QTBUG-52523
Change-Id: I3e2d8cd882d9f7dc58a65bde88e3aa16438b13c3
Reviewed-by: Simo Fält <simo.falt@qt.io>
308 Permanent Redirect was introduced after redirection support was
initially added to Qt.
[ChangeLog][QtNetwork][QNetworkAccessManager] Added support for HTTP status 308.
Task-number: QTBUG-63075
Change-Id: I1c6cda331d776237113ef8854de9abfe7e41ed3e
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
We're not going to crash to avoid core dumps getting recorded by
systemd, filling up filesystems or showing dialog boxes. We just need to
exit without running destructors. Now, exit() isn't supposed to run
function-scope destructors, so just in case we use _exit().
Change-Id: I0b48fc8e90304e0dacc3fffd14e909ff248ce1a1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
<future> is needed by QThread::create. Instead of a fragile series
of preprocessor tests, move its detection to a configure test.
This dramatically simplifies the code, but on the other hand ties
the availability of QThread::create() to the system used to compile
Qt (rather the one used to compile an application).
Change-Id: If1b06363379bf29126cfa68f2a0651cbb78a67f7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Commits aba336c2b4 (in Qt 5.2) and
aba336c2b4 (in 5.6) both tried to deal
with this problem, with different levels of success. This is the third
attempt (and hopefully the charm).
Instead of modifying the path that the user provides, go straight ahead
and declare it invalid. This is supported by RFC 3986, which declares
this expansion impossible:
relative-part = "//" authority path-abempty
/ path-absolute
/ path-noscheme
/ path-empty
path-abempty = *( "/" segment )
path-absolute = "/" [ segment-nz *( "/" segment ) ]
path-noscheme = segment-nz-nc *( "/" segment )
The "path-abempty" and "path-noscheme" cases are the two issues we
already handle. This commit adds the third one: path-absolute, which
requires that the first segment of the path be of non-zero length.
That is, it is now possible again to have http://example.com//path
constructed piece-wise, without it producing http://example.com/path.
Additionally, it catches the case of http://example.com//path parsed
from full URL then followed by setAuthority("").
Change-Id: I69f37f9304f24709a823fffd14e67a5e7212ddcd
Reviewed-by: David Faure <david.faure@kdab.com>
The qWaitFor functions themselves can not trigger a test failure, as that
will not result in the test function exiting early, so every single call
to qWaitFor needs to be wrapped in a QVERIFY.
Change-Id: Id15a1549f31d06cdbf788e1d84ea431c28636ec8
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The test tst_QXmlSimpleReader::inputFromSocket() is failing with
"QTestLib: This test case check ("(((server->listening)))") failed
because the requested timeout (5000 ms) was too short, 11700 ms would
have been sufficient this time".
Increased the timeout, since it's better to wait than to fail.
Task-number: QTBUG-63539
Change-Id: I804549648ea834e41d3c87871f5bab90f209385c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
When many runnables are executed, this improves the
performance by not resizing the queue for each runnable,
which was the case in the previous version, because of
many calls to QVector::takeFirst().
Also add a test that makes sure tryTake() is safe to
call and does not leave the queue in a bad state that
tries to use nullptr entries.
Change-Id: I608134ecfa9cfc03db4878dcbd6f9c1107e13e90
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
We can't qWaitForWindowExposed on native menu bars. Other test
functions in this file are already disabling the native manu bar.
Task-number: QTBUG-24326
Change-Id: Iecf907ca84589159417d0d942c911485a41af164
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>
A "compound widget" is a widget that has a focus proxy set to an inner
child. This is normal for complex black-box components where focus handling
is delegated to the children. Since the compound can have several
children, a local tab order might exist between them.
The current implementation of setTabOrder had no idea about
compound widgets. As such, when connecting two compounds in the
tab chain, it would just break up their inner tab order and
cause tabbing to ignore children other than the proxy.
The new implementation recognizes compound widgets, and add some
extra code to figure out the correct tab targets. This way, the
local tab order between the children will be preserved.
This implementation was inspired by the patches of Marek Wieckowski posted
in the linked bug report, and later modified by Nikita Krupenko.
[ChangeLog][Widgets] QWidget::setTabOrder() will now preserve the local
tab order inside a widget if it has a focus proxy set to an inner child.
Task-number: QTBUG-10907
Change-Id: I0673d39d70ec8c6bf64af30bf978d67c651b2f3c
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
The original test was using QSslSocket::waitForEncrypted function, which
is apparently a bad idea on Windows: connecting to 'www.qt.io' we have
to verify certs and there is no guarantee a given Windows VM has the required
CA certificate ready in its cert store. In such cases we start a background
thread (aka CA fetcher's thread) and it calls a (potentially blocking for
a significant amount of time) function (CryptoAPI). When finished, this
thread reports the results via queued connection, which does not work
if we are sitting in a tiny-loop inside waitForEncrypted. Re-factor
the test to use signals/slots and a normally running event loop.
Also, the last test makes a wrong assumption about Windows - fixed.
Task-number: QTBUG-63481
Change-Id: I4abe9cda2a6c52d841ac858cccb6bf068e550cb8
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Convert QSysInfo/QOperatingSystemVersion to __builtin_available where
required or possible, or to QOperatingSystemVersion where
__builtin_available cannot be used and is not needed (such as negated
conditions, which are not supported by that construct).
Change-Id: I83c0e7e777605b99ff4d24598bfcccf22126fdda
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
QWindowContainer assumed that a widget could never change from
native to non-native. This is not a fact when the window container
is reparented to toplevel and back. In this case, usesNativeWidgets
would be stuck at true, and parentWasChanged() would go down the
native widget path, triggering an assert.
The solution is to always recalculate the usesNativeWidgets bool.
Task-number: QTBUG-63168
Change-Id: I88178259878ace9eb5de2ee45ff5e69b170da71c
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Reviewed-by: Błażej Szczygieł <spaz16@wp.pl>
Swapping from RHEL 7.2 to 7.4 produces new autotest failures.
Task-number: QTBUG-63433
Change-Id: I3e59aa73b5874cfec06e166f521e06b0c7829743
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
This avoids looping prior to the main 16-byte loop, by performing one
load that may include bytes prior to the start of the string. This is
guaranteed not to fault, since str points to a valid character, but it
may cause Valgrind to print warnings.
Change-Id: I6e9274c1e7444ad48c81fffd14dcae854bba24b2
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
By the time we call setKeyboardMode(true), the menu may
already have taken focus. This change sets keyboardFocusWidget
before opening the popup, and makes sure that keyboardFocusWidget
is not set to the popup. (We cannot remove the assignment from
setKeyboardMode(), since it's called from several places.)
[ChangeLog][QtWidgets] Fixed widget losing focus after showing
menu second time.
Task-number: QTBUG-56860
Change-Id: Ic01726bf694e6f365dd7b601ad555156e0fdf6c5
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Child QWindows (or in the case of QWindows embedded in native applications:
top level QWindows where the corresponding NSView is a child of another
view, so not being the contentView of its window), still need some of the
NSWindow notifications to e.g. update their exposed state when the window
becomes visible.
We make sure to send the notification to all QCococaWindow children of
the relevant NSWindow, and let each callback decide if it should only
apply to content views.
This fixes an issue where a QWindow would never be exposed if the window
was a child NSView and added to a NSWindow that was yet to be shown.
Change-Id: I7f7df8bc5f4ca3ac553a2c146f8c3229b197c059
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
From: https://tronche.com/gui/x/xlib/events/exposure/expose.html
"The circumstances in which the X server generates Expose events
are not as definite as those for other events."
On windows with XCB_GRAVITY_NORTH_WEST flag set we should not get
expose events according to e2665600c0,
but as stated earlier this might not always be true.
Nevertheless, sometimes we get expose event from X server when shrinking
window, but most of the time we don't. Make the test not flakey by
checking that we get at least 1 expose event, instead of exactly 1.
Now running test 500 times in a loop does not fail.
Task-number: QTBUG-63424
Change-Id: I8004e622020cc09e11b7d592faf6d9ee1b9cfee2
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
When tabbing/searching for the next focus widget, the current
code would check if the next widget in the focus chain
had a focus proxy, and if so, ignore it. The exact reason
for this behavior is not clearly understood, but some widgets
(e.g QSpinBox) has children (a QLineEdit) that sets the parent
as focus proxy. If we didn't ignore children with focus proxy, tabbing
from a QSpinBox would lead us to find the inner QLineEdit, which
(because of its proxy), would lead us back to the QSpinBox. And
therefore not be able to tab out.
But ignoring the focus proxy has other problems. Normally a focus
proxy is the next sibling to the widget it acts as a proxy for, and
tabbing to the widget will therefore appear correct. But if the
focus proxy is not the next sibling, the logic will fail, since
the tab would anyway give focus to the next sibling. This becomes very
apparent if the focus proxy is a child of the widget, since then
its likely that the focus proxy is not the _first_ child among all
the children. So tabbing to the parent would not give focus to
the proxy.
This patch will change this logic so that you are allowed to tab to a
widget with a focus proxy. But we check that if you do so, you actually
end up moving focus in the right direction. If not, we ignore it like
before. This will ensure that we tab correctly when dealing with focus
proxies, and especially when focus proxies are used to construct
compound widgets.
[ChangeLog][Widgets] When tabbing to a widget with focus proxy, focus
will now be given to the proxy rather than just being ignored.
Task-number: QTBUG-10907
Change-Id: I66d1da5c941fdd984bb2783cc355ca65b553b5dd
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
"generate" is better than "get", and we already have "generate(it, it)"
which uses std::generate(). This changes:
- get32() → generate()
- get64() → generate64() and QRandomGenerator64::generate()
- getReal() → generateDouble()
Change-Id: I6e1fe42ae4b742a7b811fffd14e5d7bd69abcdb3
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Due to the complex event forwarding logic between QCompleter,
QComboBox, QLineEdit and QWidgetLineControl, in some cases the
same single user return key press could result in duplicated
activated() signals being emitted by QComboBox. The first one
would be emitted because QLineEdit emitted editingFinished()
as a result of QCompleter::eventFilter() having forwarded the
return key press event to QComboBox. The second one, would
happen right after, as QCompleter::eventFilter() would process
the same event on behalf of its popup.
(We recall that QCompleter is installed as its own popup event
filter. That's also the case for the completer's widget, although
the purpose there is limited to focus-out events).
The current fix consists on skipping the emit as a result of
QLineEdit::editingFinished() if the completer's popup is still
active. For this to be accurate, it helps to test whether the
completer's popup is visible, so we will not be hiding it in
QWidgetLineControl::processKeyEvent() anymore. Indeed, we know
that if the popup is visible, that means that processKeyEvent()
was called after being forwarded by the completer's popup event
filter. Furthermore, the popup will be hidden by its event filter
shortly after it returns from said event forwarding call.
Based on a patch by Alexey Chernov <4ernov@gmail.com>.
Task-number: QTBUG-51858
Task-number: QTBUG-51889
Change-Id: I013f6c3000ae37b5b0ec20eaf5cf7746c9c903e3
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Commit 12c5264d9a fixed the calculation of
SHA-3 in QCryptographicHash: we were previously calculating Keccak.
Unfortunately, turns out that replacing the algorithm wasn't the best
idea: there are people who need to compare with the result obtained from
a previous version of Qt and stored somewhere. This commit restores the
enum values 7 through 10 to mean Keccak and moves SHA-3 to 12 through
15. The "Sha3_nnn" enums will switch between the two according to the
QT_SHA3_KECCAK_COMPAT macro.
[ChangeLog][Important Behavior Changes] This version of Qt restores
compatibility with pre-5.9.0 calculation of QCryptographicHash
algorithms that were labelled "Sha3_nnn": that is, applications compiled
with old versions of Qt will continue using the Keccak algorithm.
Applications recompiled with this version will use SHA-3, unless
QT_SHA3_KECCAK_COMPAT is #define'd prior to #include
<QCryptographicHash>.
[ChangeLog][Binary Compatibility Note] This version of Qt changes the
values assigned to enumerations QCryptographicHash::Sha3_nnn.
Applications compiled with this version and using those enumerations
will not work with Qt 5.9.0 and 5.9.1, unless QT_SHA3_KECCAK_COMPAT is
defined.
Task-number: QTBUG-62025
Discussed-at: http://lists.qt-project.org/pipermail/development/2017-September/030818.html
Change-Id: I6e1fe42ae4b742a7b811fffd14e418fc04f096c3
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The comment was back-to-front on the meaning it needed to address; and
the #if-ery used a deprecated define, now changed to match what
sanity-bot asked for.
Change-Id: I0a971ab2e405e5908066da86964d67c8b852f114
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
This autotest is blacklisted as it is deemed flaky.
Task-number: QTBUG-63262
Change-Id: I216985e81d1c1cb3528fd8a005be48cad2a31ab7
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
This autotest is blacklisted as it is deemed flaky.
Task-number: QTBUG-63260
Change-Id: I3e83bcb0dbbe4fbf9d5c16f764fbeeca2b52d10c
Reviewed-by: Heikki Halmet <heikki.halmet@qt.io>
Thiago Macieira
Orgad Shaneh
Thorbjørn Lund Martsum
Friedemann Kleint
Liang Qi
Timur Pocheptsov
Joerg Bornemann
Kai Koehne
Tony Sarajärvi
Mårten Nordheim
Giuseppe D'Angelo
Tor Arne Vestbø
Milla Pohjanheimo
Svenn-Arne Dragly
Gatis Paeglis
Richard Moe Gustavsen
Jake Petroules
Paul Olav Tvete
Shawn Rutledge
Gabriel de Dietrich
Edward Welbourne