Unify the logic in QTextEngine
Ensure tightBoundingRect, and the FreeType boundingRect, calculates from
the shaped x offset when calculating the max x coordinate for a glyph.
Fixes: QTBUG-7768
Task-number: QTBUG-70184
Task-number: QTBUG-85936
Task-number: QTBUG-94023
Change-Id: I6daafb25c79158dc7e777529abb5e8d3a284dac0
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
When the cursor is positioned between to script items that have different
writing directions, prioritise the script item that has the same direction
as the paragraph (i.e. the QTextEngine) when deciding where and how to
display the cursor. If visual cursor movement is enabled, the behavior is
unchanged.
As a drive-by, clean up coding style and avoid shadowing of function-
local variables.
Task-number: QTBUG-88529
Pick-to: 6.2
Change-Id: I15227b10b1469d9caf1235b00e4d6f9f64a8b510
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
In a text line that has a change of direction at either end of the text,
the cursor needs to be positioned where the next character is inserted,
or where backspace deletes the previous character. In bidi text, this is
ambiguous as illustrated by this example:
abcشزذ
Depending on whether this string was typed in a left-to-right document
or in a right-to-left document, it could be first latin, then arabic; or
it could be first arabic, then latin.
If a general left-to-right context, cursor position 0 should be in front
of the 'a', and cursor position 6 should be at the end of the arabic
text, in the visual middle of the line. Cursor position 3 can be either
after the 'c' if the next character typed would be latin, or at the
visual end of the line if the next character will be arabic.
Qt calculated the cursor position past the right end of the text as 3
(which is not wrong, but 3 has two visual positions), and placed the
cursor at the visual end of the line (favoring the right-to-left
alternative). Backspace would then delete the 'c', writing a new
latin character would insert a 'd' next to the 'c', writing a new arabic
character would insert it also in the middle - none of these operations
happen at the visual end of the line, where the cursor was blinking.
To fix this, we take into account the general layout of the text, which
is typically based on the document, or the user's locale setting and UI
translation, and calculate the cursor position accordingly: if we are
past the visual end of the document on either side, then the cursor
position is either 0 or the last character of the text, depending on the
direction of the QTextEngine used. This way, the cursor ends up in the
middle of the document when we click beyond the end of the line, which
is where characters are removed and inserted. Typing a 'd' at this point
will make the cursor jump to the end, where the d is added.
There are still corner cases: clicking on the right-most arabic character
calculates the cursor position as 3, which is then ambiguous, as it can
be either at the visual end of the string, or next to the 'c'. َQt makes
the inconsistent choice to place the cursor at the visual end, showing
the left-to-right indicator, but pressing a 'd' adds the 'd' after the
'c' in the middle of the text.
Fixes: QTBUG-88529
Pick-to: 6.2
Change-Id: Idccd4c4deead2bce0e858189f9aef414857eb8af
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
If an entity occurs directly in markdown, we parse and insert it
directly; but if it occurs in an HTML block, it has to be added to the
HTML accumulator string for deferred parsing when the HTML block ends.
Pick-to: 6.2
Fixes: QTBUG-91222
Fixes: QTBUG-94245
Change-Id: I0cf586d68d6751892ca035a98f77cd67950d3bc4
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
- Under a list item, we've been indenting code blocks:
```
int main() ...
```
- But it's also ok *not* to indent (and github handles that better):
```
int main() ...
```
- There was a bug that when the code is not indented, the fence would be
indented anyway:
```
int main() ...
```
and that was not OK, neither for md4c nor for github.
Now with this change, either way is rewritable: you can read markdown
into QTextDocument, make small edits and write it back out again, with
the indentation being preserved (the code block is either part of the
list item, thus indented, or else it's outside the list completely).
Pick-to: 6.2
Task-number: QTBUG-92445
Change-Id: I5f51899e28ba9f09b88a71e640d9283416cce171
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
[ChangeLog][QtGui][CSS] The background-color style can now be applied to
<hr/> to set the rule color.
Task-number: QTBUG-74342
Change-Id: Ib960ce4d38caa225f258b6d228fb794cef43e1b7
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
When parsing CSS, a border-color value is parsed as four brushes, as css
allows assigning up to four values, one for each side.
When applying the CSS to the HTML, we accessed it as a color value,
which overwrote the parsed value with a QColor. So while we had a valid
parsed value (and didn't re-parse), the code accessing that value still
expected it to be a list, and thus failed to retrieve the data.
There are several ways to fix that, but the cleanest way without
introducing any performance penalty from repeatedly parsing (and in fact
removing a parse of the string into a color) is to enable colorValue to
interpret an already parsed value that is a list without overwriting the
parsed value again. To avoid similar issues in the future, add assert
that the parsed value has the right type in brushValues.
As a drive-by, speed things up further by making use of qMetaTypeId
being constexpr, which allows for it to be used in a switch statement.
Add a test case.
Fixes: QTBUG-96603
Pick-to: 6.2 5.15
Change-Id: Icdbff874daedc91bff497cd0cd1d99e4c713217c
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
We can only start timers in threads started via QThread, and even then
we cannot assume that the thread runs an event loop. So only start the
timer when we are in the main thread.
Add a test that verifies that we don't get the warning message.
Pick-to: 6.2
Change-Id: I40d7d9ff115720f9ecd3eedaebbade2643daf843
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>
- process environment/DNS are OFF for INTEGRITY
Task-number: QTBUG-96176
Pick-to: 6.2
Change-Id: I189a97f88c96a428586c31a66b8d250e04482900
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
a332f3fabc disabled resolving all fonts
on the system for every font lookup, which was a significant startup
time improvement. But it also caused a regression: When a font has
an alias which shares the name of a proper font, then this would
not be resolved correctly.
This is fairly typical on Windows/GDI due to backwards-compatibility.
Instead of being collected under a shared typographical family, fonts
are disambiguated by adding the style name to the family name. The
proper typographical name is still available, but this is not
enumerated by the system.
So "Segoe UI" for instance, will be available as "Segoe UI",
"Segoe UI Light", "Segoe UI Bold" etc.
When we populate family aliases, we register that "Segoe UI Light"
is actually "Segoe UI" with Light weight, and prior to
a332f3fabc this would be done implicitly.
But after the optimization, we would only populate family aliases once
we stumbled over a font request for a non-existent font. For "Segoe UI",
we would simply return the regular weight font as the best imperfect
match.
The fix is to populate font family aliases not only when the family is
non-existent, but when the match is imperfect, e.g. if we are asking
for a Light weight font and only finding a regular one. User code can
still avoid this somewhat expensive operation by using the full
family names on Windows.
This also requires a fix to a test. When removeApplicationFont() is
called, we invalidate the font database, so it will be reset to a state
that does not contain the family aliases. Therefore we cannot guarantee
that it is identical to what it was before the test started, since this
depends on what has happened previously in the application.
[ChangeLog][QtGui][Text] Fixed an issue where some font styles and weights
would not be selectable. This was especially noticeable on Windows.
Pick-to: 5.15 6.1 6.2
Fixes: QTBUG-94835
Change-Id: I892855edd1c8e3d3734aace396f6000d897d2ec4
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
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>
Remove SRCDIR defines from tests that don't use them. There is a
standard define called QT_TESTCASE_SOURCEDIR that is available to all
tests and serves the same purpose.
Pick-to: 6.2
Change-Id: I2aa237739c011495e31641cca525dc0eeef3c870
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Replace custom SRCDIR define with QT_TESTCASE_SOURCEDIR. The latter is
automatically available to all tests to use and serves the same purpose
but is not terminated by a slash.
Change-Id: I62896d0fd84ac63ac1b74a459ec1646c6bde0a46
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Most nested block elements are merged together, so while we shouldn't
do real inheritance we need to do it when block elements are combined.
Pick-to: 6.1
Fixes: QTBUG-91236
Change-Id: I9e37b15f705db92c79a620d0d772f25d0ee72b8d
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
When we are having nested lists then we need to ensure that the HTML is
outputted correctly so that the closing list and item tags are placed
in the right order.
[ChangeLog][QtGui][QTextDocument] The output of toHtml() now handles
nested lists correctly.
Fixes: QTBUG-88374
Pick-to: 6.1 5.15
Change-Id: I88afba0f897aeef78d4835a3124097fe6fd4d55e
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
This unit test is related to the parent commit.
Html export used to omit the text-decoration for the default font,
this unit test ensures that this property is added to the exported
html.
Fixes: QTBUG-91171
Change-Id: Ib68bec27f9963cdcac5c553b2c07557717b1c22e
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
It used to be ignored because we couldn't disable it, but that works
fine now. So re-enable it.
Fixes: QTBUG-91171
Change-Id: I4cf966211bb200b73326e90fc7e4c4d3d4090511
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
QVectorND, QQuaternion, and QColor all operate on floats rather than
qreal or double, so explicit use float literals in the tests.
Pick-to: 6.1
Change-Id: If12cc12ddd9cd8219f3d78bf24e1400921e26c2b
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
376e3bd8ec added the new class for Qt 6.1,
but during header review we concluded that using a class introduces
complexity wrt instance ownership and API design that can be avoided by
using a std::function instead.
The functionality is tied to QTextDocument, so the type definition and
the default provider API is added there.
Since std::function is not trivially copyable, the atomicity of the
previous implementation is not maintained, and concurrent modifications
of and access to the global default provider from multiple threads is
not allowed. The relevant use case can be supported by implementing a
resource provider that is thread safe.
Task-number: QTBUG-90211
Fixes: QTBUG-92208
Pick-to: 6.1
Change-Id: I39215c5e51c7bd27f1dd29e1d9d908aecf754fb7
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
While the class name is now a bit more than a mouthful, it's purpose
is very narrowly tied to QTextDocument, so don't use a very generic
name for it. That resources are provided based on a URL is to some
degree an implementation detail, and URLs are resource locators so
we don't need that in the class name.
Address code review comment for 6.1. Add documentation and links to
existing APIs with a similar purpose.
Task-number: QTBUG-90211
Task-number: QTBUG-92208
Pick-to: 6.1
Change-Id: I4f09057cc2f53a5595513c1c9422e6ccaad6ca13
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
The emulation detection has been usable only on qtbase tests, move it to
QTest so that it can be used in other modules as well.
Pick-to: 6.1
Change-Id: I4b2321b7856414d7b1cfd5e6b1405a633c6bb878
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Calculate the effective width of the hyphen better, and compare with
ceiled sizes.
Pick-to: 6.1 6.0
Fixes: QTBUG-90698
Change-Id: I7ed2eb44c54240ecb2f8a38e5acf1f32608b2bfb
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Different font was used when running on QEMU ARMv7 and the second page
was never reached.
Pick-to: 6.1
Task-number: QTQAINFRA-4127
Change-Id: Ic85b76661cf3642b69e6e1b21e8062d7c36231e3
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
As described in 3279c8e7d7, we can't
depend on the widths of decoration to always be the same for
drawText() and equivalent drawStaticText/drawGlyphRun.
This is typically visible as an off-by-one when using the default
fonts on OpenSUSE.
Since this test was actually made to test positions of RTL glyphs,
we can just disable the decoration and simplify the text.
Fixes: QTBUG-89086
Change-Id: I139fe3e1c5e98d8b1d7e0e7c19645fd4717d1d95
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
This was added by 9ff76c27b9 on
the basis that it signifies a shaping error and would later assert
or crash.
But the line is easily reachable by user code. If Harfbuzz returns
0 glyphs, it just means it is unable to shape the string, for instance
if the input string only contains default ignorables (like a ZWJ)
and does not have any appropriate glyph to use for replacement.
Qt expects there to always be at least one glyph in the output
(num_glyphs == 0 is used to indicate shaping is not yet done), so
to avoid asserts later on, we simply populate the output with a
single 0 token, which is a required entry in the font that is
reserved for representing unrepresentable characters.
This also adds a test and therefore a zero-width joiner to the test
font to reproduce the issue.
[ChangeLog][QtGui][Text] Fixed a possible crash with certain fonts
when shaping strings consisting only of control characters.
Fixes: QTBUG-89155
Pick-to: 5.15
Pick-to: 6.0
Change-Id: Ia0dd6a04844c9be90dcab6c464bebe339a3dab11
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
With the updated QEMU and toolchain, these tests now pass.
Change-Id: Icb74562a0e6422cd4564f63db991aa431e0e3119
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Those serve no purpose anymore, now that the .pro files are gone.
Task-number: QTBUG-88742
Change-Id: I39943327b8c9871785b58e9973e4e7602371793e
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
QTextDocument and the text editor classes suggest to override
their loadResource() methods to provide data associated with
a text document. This approach has the following drawbacks:
- it requires subclassing
- there is no way to set a global resource provider
- QLabel is missing virtual loadResource() method and
it can't be added without breaking ABI
QUrlResourceProvider is designed to solve these issues.
One should create a derived class that implements
QUrlResourceProvider::resource(). The objects of the derived
class then can be set for any text document.
The default resource provider can be set with
QUrlResourceProvider::setDefaultProvider().
This change also adds QLabel::setResourceProvider(),
which doesn't break ABI.
[ChangeLog][QtGui][Text] Introduced QUrlResourceProvider that allows to
load resources for HTML. It is intended to replace the use of
QTextDocument::loadResource().
Change-Id: Iaf19b229f522a73508f20715257450fe58f68daf
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Most tests fail when running on QEMU ARMv7, but not on target HW or
QEMU ARM64.
Task-number: QTBUG-89819
Change-Id: I686268c200cce1a44a717b80c2970f608be44636
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Remove the qmake project files for most of Qt.
Leave the qmake project files for examples, because we still test those
in the CI to ensure qmake does not regress.
Also leave the qmake project files for utils and other minor parts that
lack CMake project files.
Task-number: QTBUG-88742
Change-Id: I6cdf059e6204816f617f9624f3ea9822703f73cc
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Blacklist qfont tests that don't work correctly with qemu.
Task-number: QTQAINFRA-3836
Change-Id: I7f5d4b07428febb0adb82d38203226b5c56a2ad5
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>
Complete search and replace of QtTest and QtTest/QtTest with QTest, as
QtTest includes the whole module. Replace all such instances with
correct header includes. See Jira task for more discussion.
Fixes: QTBUG-88831
Change-Id: I981cfae18a1cabcabcabee376016b086d9d01f44
Pick-to: 6.0
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
If the first font in the families list happens to have been
disambiguated because of duplicates, two things went wrong:
1. hasFamily() would return false for the font family, because
it does not disambiguate when checking for the family name and
only checks if the families list contains the exact string.
2. Adding aliases to the full disambiguated string is not supported,
only the family name.
The first issue has been reported separately as QTBUG-89068.
The test failure is fixed by just avoiding the fonts that
are ambiguous in the test, as it really doesn't matter which
font we pick.
Fixes: QTBUG-89008
Pick-to: 5.15 6.0
Change-Id: I829778c2e7bb6090475c34dcf9cdce58862729d6
Reviewed-by: Liang Qi <liang.qi@qt.io>
QTextCharFormat::fontFamily is deprecated in favor of fontFamilies,
which returns a QStringList wrapped in a QVariant, whereas the setter
expects a QStringList.
Change-Id: I3333eaae4fc5ec3e3bdbec58047d6b3554b4a171
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
Make the string into a list and call setFontFamilies.
Pick-to: 6.0
Change-Id: I1b70db784fd6e495b48917141d07bacd1e883882
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
The QFont::fromString() needs to differ between strings
produced before and after Qt 6.0 when interpreting the
weight value, since in older strings this will be the legacy
scale.
Luckily the number of tokens in the string can be used for this
purpose, since many tokens were added in Qt 6.0.
This broke KDE, where font settings are stored in QSettings
and serialized using QFont::toString() from Qt 5.
Fixes: QTBUG-88589
Pick-to: 6.0.0 6.0
Change-Id: I199737fed61917f8b9d8f86176ead29a89eb8e0c
Reviewed-by: Andy Shaw <andy.shaw@qt.io>
By depending on setFamilies() then we can be sure that font names with
spaces, commas, quotes and so on are correctly handled without being
misinterpreted. For now it will split on the comma when a string
containing one is passed to setFamily. But from Qt 6.2 this will be
removed to preserve the family string as a convenience function.
[ChangeLog][QtGui][QFont] Indicated that setFamilies/families is
preferred over setFamily/family to ensure that font family names are
preserved when spaces, commas and so on are used in the name.
Change-Id: Id3c1a4e827756a4c928fed461a4aafa5a0f06633
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Allan Sandfeld Jensen
Volker Hilsheimer
Shawn Rutledge
Albert Astals Cid
Tatiana Borisova
Eskil Abrahamsen Blomfeldt
Ievgenii Meshcheriakov
Eirik Aavitsland
Andy Shaw
Oliver Eftevaag
Heikki Halmet
Samuli Piippo
Joerg Bornemann
Alexander Volkov
Liang Qi
David Skoland