This is the kind of loop that the autovectorizer is pretty good
at, but this is really just a type of memchr, so help dumber
compilers and build modes without vectorization.
Drive-up fix the style of the test code.
Change-Id: Ie72b0dd0fbe84d2caae0fffd16a022a35fa24c17
Reviewed-by: Ievgenii Meshcheriakov <ievgenii.meshcheriakov@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
There's not much context to the URLs being printed, so remove the
message. And suppress the message coming from the MiniHttpServer
Change-Id: Ie2025ac717657ed0f2f0163bd0af22e12a49b30f
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
The insertions are sorted by when they expire. So, we test the various
orders to insert entries.
Fixes: QTBUG-95959
Change-Id: I1e8d7f4c77dce5eae3d4bfa5101f296c3eea1961
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
After the last row is moved, 0 will be returned when obtaining
row and column data. At this time, QListView::doitemslayout will
not call d->doitemslayout, so the QBspTree data structure will
not be cleaned up, leaving a stale tree structure behind. This
will trigger an assert during paintEvent handling if QListView is
set to IconMode
In QListView::ListMode the test for a valid model index doesn't
use an assert.
Call QListViewPrivate::clear explicitly if the column count is 0
so that the QBspTree and other data structures are cleared.
Add a test case that simulates this scenario by implementing a
model that returns a 0 column count for an index after the model
structure was changed through a move of rows.
Done-with: Volker Hilsheimer
Fixes: QTBUG-95463
Pick-to: 5.15 6.1 6.2
Change-Id: I36419be5459b8ced930c619f538482ea1db4ad03
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
We have previously been using the standalong (nominative) month names
both when asked for that and when asked for the plain (genitive) month
name, probably because there was no LCTYPE value for the
latter. However, MS's docs for the standalone values do contain a
comment telling us how to get the genitive names.
Rename the old monthName() to standaloneMonthName() and add a
monthName() that calls GetDateFormat() suitably, as described by the
MS doc.
Pick-to: 6.2 5.15
Fixes: QTBUG-92018
Fixes: QTBUG-86279
Change-Id: I27f63198c3a15b792683f476d2019078b0860f99
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This mimics the effects of test-code delegating checks to other
functions, which can lead to repeated failures. The failing test
should only contribute one to the total of failed tsts. Drive-by:
correct an existing test's reporting of its own name.
Task-number: QTBUG-95661
Change-Id: I370fd2aee378d9fdd35826f0d11677483c60423d
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
We can't really compare two NaN's. Should use qIsNaN() for that.
Pick-to: 6.2
Change-Id: Ia514cabe65cfcdeafb39cab91ecdb66f8fae725c
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Replace the “size() / devicePixelRatio()” pattern with
a call to deviceIndependentSize().
Change-Id: I9d9359e80b9e6643e7395028cd43e3261d449ae7
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
The new test is called tst_qurluts46. It verifies QUrl::{to,from}Ace()
functionality using the data from IdnaTestV2.txt supplied by Unicode.
The file was downloaded from
https://www.unicode.org/Public/idna/13.0.0/IdnaTestV2.txt
Task-Id: QTBUG-85371
Change-Id: I4c6a4942ef6018dafc90cb84ef73f6b2614566d7
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
The testcase was disabled with no explanation in
2766322de3 but seems to work fine.
Change-Id: Ibc22a4ffb756604e22c1f2cf1165919c1d7f1212
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
When linked to OpenSSL, qt.tlsbackend.ossl will log.
Change-Id: I6f0e3c3e6af73b29cff93b8efe39933e5b36d493
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This reverts commit 1ecf2212fa.
The fix is not correct after all. TouchBegin goes to the correct
widget with the fix, but following TouchUpdate and TouchEnd events
now go to the viewport, as QApplication::translateRawTouchEvent always
gives precedence to the widget that Qt recorded to be the touch
grabber, which is the viewport. This results in infinite recursion,
as the proxy widget trying to send the touch events to the embedded
widget (expecting that translateRawTouchEvent will split it up) ends
up sending the events back to the viewport.
Leave the added test case as QEXPECT_FAIL, reactivate the (never run,
hence unnoticed) test that the fix broke.
Pick-to: 6.2 6.1
Task-number: QTBUG-45737
Task-number: QTBUG-67819
Change-Id: I4810affb3cd066743ae94ab7beb2f0c06b60d211
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Make file names match CMake's test names (and those follow dir-name)
and class names follow tst_ClassName pattern when testing
ClassName. Purge comments about the qmake configs the CMakeLists.txt
are generated from. Purge empty constructors and init/cleanup methods
of classes. Fix petty coding style violations.
Add qdir/tree/, qurl, qbench and qset benchmarks to their parent directories'
lists of subdirs. Fix unused return error from qurl benchmark.
Change-Id: Ifc15a3a46e71cf82ad0637753517e0df34049763
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The test case was previously disabled, so tests were added to the
QGraphicsView test instead. With the QGraphicsProxyWidget test active
again, move the test cases where they belong.
Amends 1ecf2212fa,
01aeb5f7e4, and
06235d36ae
Pick-to: 6.2
Change-Id: I208b8a418653cf0640c2e7c9f716fa69538ad7e9
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
They were de-facto disabled in the qmake build system, and didn't make
it into the cmake build system either. The dependency to the fusion
style is not a build-time dependency since the test uses the
QStyleFactory to create the style, and if that fails, tests can be
skipped at runtime.
As a consequence of not being executed in CI for a long time, many
tests failed. Also, many tests were commented out or skipped as
broken, ambivalent, or nonsensical. Remove that dead code. The
QGraphicsWidget::initialShow test doesn't test anything that initialShow2
doesn't test, but makes incorrect assumptions, so remove it and rename
initialShow2 to initialShow.
Failing tests frequently left QWidget objects undeleted, causing all
subsequent tests to fails as well. Fix that with std::unique_ptr.
Some tests are still unstable and fail on some platforms, handle that
using QEXPECT_FAIL. The forwardTouchEvent test fails due to a bug
in Qt introduced recently. Skipping it for now.
Pick-to: 6.2
Change-Id: I405122ea9d4d150bd1d505d40b83fe39604de0f9
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Now that we don't need '\0'-termination on the data, this is possible.
Moved QByteArray's tests to tst_QByteArrayApiSymmetry and added some
more test-cases.
[ChangeLog][QtCore][QByteArrayView] Added numeric parsing methods.
Change-Id: Ic0df91ecfe5dbf6f008d344dd0464d7927f32273
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Remove third-party code in favor of STL. Implement (for now)
strtou?ll() as inlines on strntou?ll() calling strlen() for the size
parameter. (This is not entirely safe, as a string lacking
'\0'-termination but with at least some non-matching text after the
numeric portion would formerly be parsed just fine, but would now
produce a crash. However, strtou?ll() are internal and callers should
be ensuring '\0'-termination.)
Task-number: QTBUG-74286
Change-Id: I0c8ca7d4f6110367e93b4c0164854a82c5a545e1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
So include that; and sort the includes while I'm about it.
Change-Id: I0f922f7883f1e32b8bbcf555617588fa9cfacaaa
Reviewed-by: Andrei Golubev <andrei.golubev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Include counting of test types, to catch two more cases where totals
don't add up.
Task-number: QTBUG-95661
Change-Id: I9fe5424bc6652c61a065bf2889333e2ed9437c81
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Count how many we expect to pass, fail and be skipped, so we can
report that for comparison with the actual totals line: this reveals
some double-counting, marked with a FIXME.
Task-number: QTBUG-95661
Change-Id: I8b0f13ded5202ed476d8abfee70ed60f9e639bf9
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
This reverts commit 904617dfb8 and makes
clear to future readers why that wouldn't be a sensible change.
Update the test's data, eliminating a case of duplicate counting that
was caused by the reverted commit.
Task-number: QTBUG-95661
Pick-to: 5.12 5.15 6.1 6.2
Change-Id: Ice6d3ab06ca171e0d6eb0fac757f1ab774e229f0
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
The connect() documentation makes it clear that UniqueConnection does
not work with free functions / function objects and the like; only with
actual PMFs. Rather than silently *ignoring* the flag, be vocal about its
presence by warning, and make the connection fail (as the user has
passed an illegal argument).
[ChangeLog][QtCore][QObject] QObject::connect() now will refuse to
connect a signal to a free function / function object if UniqueConnection
is passed. Note that UniqueConnection has never worked for such
connections -- the flag was simply ignored, and they were established
multiple times. Now, the flag is not ignored and results in a connection
failure (as well as a runtime warning by Qt).
Change-Id: I6509667018c74f9bd24910cde0a1b16c5f84f064
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Add minimal examples which demonstrates how exec() works
on Qt for WebAssembly and how to implement main() without
calling QApplication::exec().
Change-Id: I44f1d16af19c538380cc56faf3f0f4cc9d66cf11
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Add the generating of private cpp exports for Qt modules.
Add the GENERATE_PRIVATE_CPP_EXPORTS option to qt_internal_add_module
that is the manual switch for private exports generator. Existing
modules in qtbase doesn't follow any strict convention of using
private cpp export. So there is no clue how to detect if generating of
the private exports is required or not for the module.
Use autogenerated private cpp exports in QtNetwork module.
CPP_EXPORT_HEADER_NAME argument of the qt_internal_add_module function
is replaced by the CPP_EXPORT_HEADER_BASE_NAME and has a different
meaning. The provided name is used as a base name for the private and
non-private headers that contains cpp exports. Header files suffixes
are constant: .h and _p.h for the non-private and private header files
accordingly.
Pick-to: 6.2
Task-number: QTBUG-90492
Change-Id: Icf11304e00379fb8521a865965c19b974e01e62f
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Add infrastructure to build cmake auto tests in the CI when targeting
iOS.
Currently the are only CI instructions for qtbase.
More work is needed to make it work for other repos.
With this change, we will build a single Widgets application targeting
the iOS simulator. We can't target the device SDK in the CI because
signing fails due to a missing signing certificate and provisioning
profile.
The Coin instructions will now set a QT_BUILD_ENVIRONMENT=ci env var
whose value will be checked in _qt_internal_test_expect_pass, to
ensure we build for the simulator SDK when using a universal Qt.
Without this, xcodebuild will try to build with the device SDK and
fail to build the project.
Pick-to: 6.2
Task-number: QTBUG-95839
Change-Id: Ib39c9527b107b2004746ccbdc9d9d1d658f88c76
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Just sending the event to the embedded widget is not enough, we
have to perform hit-testing for the different touch points, and
send the event to the child widget under the point. Fortunately,
QApplicationPrivate::translateRawTouchEvent provides the logic
that generates multiple events for groups of touch points.
Since that helper always sent events spontaneously, add an
optional parameter to allow sending of non-spontaneous events.
Add a test case that simulates touch events to different widget
configurations inside a QGraphicsProxyWidget.
Fixes: QTBUG-67819
Task-number: QTBUG-45737
Pick-to: 6.2 6.1 5.15
Change-Id: Iffd5c84c64ee2ceadc7e31863675fdf227582c81
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
When a needle has length 1 (because it's a QChar/char16_t, or because
it's a string-like of length 1) then an ad-hoc search algorithm is
used. This algorithm had a off-by-one, by not allowing to match at
the last position of a haystack (in case `from` was `haystack.size()`).
That is inconsistent with the general search of substring needles
(and what QByteArray does). Fix that case and amend wrong tests.
This in turn unveiled the fact that the algorithm was unable to cope
with 0-length haystacks (whops), so fix that as well. Drive-by, add a
similar fix for QByteArray.
Amends 6cee204d56.
Pick-to: 6.2
Change-Id: I6b3effc4ecd74bcbcd33dd2e550da2df7bf05ae3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Use U+FB01 LATIN SMALL LIGATURE FI instead of U+00DF LATIN SMALL
LETTER SHARP S in testcases that need non-ASCII URLs that are
normalized to ASCII. The latter is not normalized to ASCII when
using UTS #46 nontransitional processing.
Task-number: QTBUG-85371
Change-Id: I8c153feb58e556b1d31439018cc84d8e8f1de1a7
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
U+04CF CYRILLIC SMALL LETTER PALOCHKA was undefined in Unicode 3.5 used
by IDNA2003 but it is allowed in UTS #46.
Task-number: QTBUG-85371
Change-Id: I7f5c0f6dc57f1197fd509e98328207d6179f1624
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
IDNA 2008/UTS #46 do not use nameprep anymore and have different
validity rules.
Unexport qt_nameprep() and qt_check_std3rules() because they
are not used by any tests anymore.
Task-number: QTBUG-85323
Change-Id: I38c0dbae9a6bd108fbcfac350767aa7e757e786f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Use U+1F100 DIGIT ZERO FULL STOP instead of U+1F4D9 ORANGE BOOK.
The latter is not allowed according to IDNA 2003 rules but is allowed
according to UTS #46 rules. The former is disallowed in either case.
Task-number: QTBUG-85371
Change-Id: Idc8afef68c26ae0b702a475e5a53592182998a08
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Relying on the fact that a given capturing group captured a null string
doesn't allow users to distinguish whether a capturing group did not
capture anything, or captured a null substring (say, from a null subject
string).
Perl allows for the distinction: the entries in the @- and @+ arrays are
set to values in case there is a capture, but they're undef otherwise.
PCRE2 gives us the information already in the results "ovector", but
it was simply not exposed to QREM users. So, expose it.
[ChangeLog][QtCore][QRegularExpressionMatch] Added the hasCaptured()
family of functions to know if a given capturing group has captured
something.
Change-Id: Ic1320933d4554e2e313c0a680be1b1b9dd95af0b
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
This test was not ported to CMake yet.
Pick-to: 6.2
Fixes: QTBUG-88601
Change-Id: Ied3b1a0e2ddfbcf003cb0d8d01d5f64cb83cf4e7
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
They were replaced by CMake files and oss-fuzz was updated to use the
latter. No need to still maintain qmake based builds.
Change-Id: If38f39c23ef3a58c33c428341486b62fd0a81888
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
The nested widget might be a QGraphicsView as well (documented to be
supported), and QGraphicsScene maintains it's own activation status by
counting Window(De)Activate events. We need to make sure that the
embedded widget is informed about its activation status so that deeper
nested children can receive focus.
Forward WindowActivate/Deactivate events to the nested widget, which
will pass it on to all its children. Add test case, which without this
fix fails when verifying the inner scene's isActive state, or later
when testing that focusInEvent is delivered to the embedded widget.
Fixes: QTBUG-94091
Pick-to: 5.15 6.1 6.2
Change-Id: I4e0ecef50685ed081d15c7f76b6c1a4a40ed2682
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
An oversight in the code kept the algorithm in the GB11 state, even if
the codepoint that is being processed wouldn't allow for that (for
instance a sequence of ExtPic, Ext and Any).
Refactor the code of GB11/GB12/GB13 to deal with code points that break
the sequences (falling back to "normal" handling).
Add some manual tests; interestingly enough, the failing cases are not
covered by Unicode's tests, as we now pass the entire test suite.
Amends a794c5e287.
Fixes: QTBUG-94951
Pick-to: 6.1 5.15
Change-Id: If987d5ccf7c6b13de36d049b1b3d88a3c4b6dd00
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
In the process, actually use the constants as the size of some arrays,
instead of making [1024] arrays and then only using a few entries.
Change-Id: I9f36b322840393b8680788190cf8b40a828f4957
Reviewed-by: Sona Kurazyan <sona.kurazyan@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
It tried to find its test-data-directory locally, instead of asking
FileSystem where it was keeping its files, relative to a temporary
directory. Its expected counts didn't match the arcane results of its
data file; since this is a benchmark, not a regression test, I'm
assuming that's just because it was never right or the rules for
QDirIterator's filtering have changed.
Tidied up somewhat in the process.
Change-Id: Ib2dcd314b11cb0f1a6fc425633afd0e9c39bd036
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
As QPropertyAlias was public by accident in 6.0, we have to ensure that
it still works in 6.2.
This re-adds some tests for it, and reimplements the unlinking
functionality. To avoid performance regressions in hot-paths,
a new unlink_fast function is added, which behaves like the old unlink:
It ignores the special handling for QPropertyAlias, so that we can skip
the tag check. It is only used in QPropertyObserverNodeProtector and
clearDependencyObservers, where we already know the type of the
observer.
Fixes: QTBUG-95846
Pick-to: 6.2
Change-Id: Ifb405b8327c4d61c673b1a912ed6e169d27c2d8f
Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>
When assigning multiple variables to a specific section, both GCC
and Clang legitimately error out if those variables wouldn't end
up in the same section (e.g. if one of them is going to a read-only
section while the other one is going to a read-write section).
In C++, when a seemingly const variable needs dynamic initialization,
it needs to be stored in a read-write section.
Clang 13 changed internals for how some constants are materialized.
Now, when a variable is initialized with an expression containing
plain old fashioned casts, it is considered to be potentially
runtime initialized (at the point when section assignment conflicts
is evaluated). Therefore, Clang 13 errors out on fakeplugin.cpp
with errors like:
fakeplugin.cpp:36:39: error: 'message' causes a section type conflict with 'pluginSection'
QT_PLUGIN_METADATA_SECTION const char message[] = "QTMETADATA";
^
fakeplugin.cpp:32:40: note: declared here
QT_PLUGIN_METADATA_SECTION void *const pluginSection = (void*)(0xc0ffeec0ffeeL);
^
See https://bugs.llvm.org/show_bug.cgi?id=51442 for discussion
on the matter in Clang.
To simplify things, just initialize the fake pointers as regular
uintptr_t instead, avoiding the whole matter. This produces the
exact same contents in the section as before.
For what it's worth, the actual manually constructed metadata in
fakeplugin.cpp doesn't seem to have any effect on running the
QPluginLoader tests on either ELF or MachO right now.
Change-Id: Ib84a2ceb20cb8e3a1bb5132a5715538e08049616
Pick-to: 6.2 6.1
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
When forcing software scrolling through QScroller::scrollTo,
it will start from (0, 0). QGraphicsViewPrivate::canStartScrollingAt
should consider the locationof points, not just the flags of item.
Fixes: QTBUG-70255
Pick-to: 5.15 6.1 6.2
Change-Id: Iebdd5568baa3bdb41c705204dadb2895cfe9c0e2
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
Add painting of sets of lines, both connected and unconnected, that go
outside the device area.
This prepares for fixes & improvements in the painting code.
Pick-to: 6.2 6.1 5.15
Change-Id: I9cffc760524e9ade42362c9a04949270ac24180f
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
The tests can now be built with qt-cmake-standalone-test.
Change-Id: I098340a9f755806061de281fbc25cb00c61f33f0
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Don't go via QString when we don't need to.
Put expected after actual, not the other way round.
Give tests and test-cases sensible names.
Prefer function-style cast over C-style.
Change-Id: I0b79534a9cc95f2e312a85394693ac674ff3d1d6
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
When using NoFontMerging, no fallbacks should be resolved. If the
font does not support a specific character in the text, we should
display a box instead of merging it with another font.
But in practice, Qt would still apply the fallback mechanism for
one specific case: If the font itself does not support the script
of the text, we would get no match and do a search for a fallback
instead. Since NoFontMerging is set, we would then force this
as preresolved for *all* scripts in the QFont's private data
(logically, the match should only have a single response for
NoFontMerging).
The end result was that if you set the font family before updating
the text, you would get broken rendering. This can happen e.g. in
Qt Quick, where you could update the font family of a text label
while it contains characters which are not supported by the new
font. Qt would then pick a fallback instead. When you subsequently
update the text, the fallback would already be preresolved for
whatever script this is. If it does not support the updated text,
we would then see boxes, even if the requested font actually would
have supported it.
The fix is simply to do an additional pass if NoFontMerging is set
and we were not able to match with the specified script. Since
the same family might be available in different foundries, with
different writing system support, we still want to do a pass first
to see if we can match the exact script of the text.
Note that QRawFont::fromFont() exploited the bug by using
NoFontMerging for getting the fallback font for a specific
writing system. To keep this working without having to rewrite
fromFont() and risk introducing regressions, we add an argument
to make the findFont() function behave as before. It isn't
super-pretty, but since it is private API it is hopefully fine.
[ChangeLog][QtGui][Text] Fixed an issue with NoFontMerging and
changing font families dynamically, where boxes would be seen in
place of the correct text.
Pick-to: 5.15 6.1 6.2
Done-with: Andy Shaw
Fixes: QTBUG-81770
Change-Id: Ide9a36d7528a1040172c5864fa99e7a82eac4e83
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
