Incidentally, this corrects two small errors in the values of the
Medium and Heavy font weights.
Change-Id: I17d4410890f1f3bd1ed72e94f5ca0d43c21484e1
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
This fixes a problem that caused the QFont::Thin and QFont::ExtraLight
conditions to be unreachable.
Change-Id: I62a701c53222edffbddbf868311111374ae5bea8
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Both QFont::handle() and QFont::freetypeFace() used to
be available in Qt 4 but were removed in Qt 5. There's
currently no API to get access to the native font handle,
which the font engine holds in a way or another.
Similar to the way it was in Qt 4, the actual handle type
depends on the font engine currently in use. The types map
as follows:
Font Engine Native Handle
------------------------------------
DirectWrite IDWriteFontFace *
Freetype FT_Face
Mac CTFontRef
Win HFONT
All other font engines return a null handle.
Change-Id: I3bea8259ac1378fd24079723aa6603bf9e74834c
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
The centralized one (in QFontDatabase) does the job.
Change-Id: I33def7a7bcddeaa62b904d8812321a7f4648a9d0
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
The pixel size passed into QCoreTextFontDatabase::fontEngine() has already
been scaled to take the destination DPI into account. In the normal case
the destination DPI is the same as the screen's logical DPI, 72, and we
end up with the pixel size being equal to the point size. But when the
Qt::AA_Use96Dpi flag has been set, e.g. when running tests, the pixel
size is larger than the point size, and we need to pass this information
to CoreText, otherwise we end up with clipped text rendering. This was
evident when looking at the lancelot baselines for OS X, which are
produced using QTestLib, and hence run with Qt::AA_Use96Dpi set.
Change-Id: Ib0f720bb318b2dc437172a6b712675e3dfe3f7ac
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
The logic used in the FreeType font engine can be generalized
and move to the QFontEngine baseclass. This allows the CoreText
font engine to correctly report the minimum left/right bearings,
which decreases the chance that an optimization in QTextLayout's
line breaking algorithm will produce wrong results.
The calculation of left and right bearing has been moved to the
glyph_metrics_t type to reduce code duplication. This allows us
to use the with and height of the bounding box to determine if
the glyph has any contours.
Change-Id: I864697d3f31ed56f22f04666199b6c5023c5e585
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
This permits text rendering consistent with other FreeType enabled platforms,
like Windows and Linux.
Task-number: QTBUG-42839
Change-Id: I8c99bcaa3fb07c16e935a0c3705af467bc3da584
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>
We have at least 5 different (but equal) implementations of a wrapper
in Qt, and some code uses explicit NSAutoreleasePools. Having a shared
implementation lets us clean up things a bit and makes it easier to
reason about which pools are actually needed.
Change-Id: I2fd8eefc3ae7308595ef9899b7820206268362a5
Reviewed-by: Tim Blechmann <tim@klingt.org>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
With use of pre-allocated buffer, there is always a good chance
to get the requested data with a single call.
Change-Id: I8fed718e15970ab345ce96a9405578947b59f311
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
In QFontEngineMulti::stringToCMap() we call the primary engine's
implementation of the same function. If this engine does not support
the character in question, then it's supposed to clear the glyph array,
otherwise there may be left-over junk in the glyph array from previous
script items and the font selection algorithm will think it has already
found a match for the character corresponding to the glyph position.
The freetype engine, for instance, clears the respective entries
in the array when it gets a 0 glyph from the font engine.
In particular, this would happen when you had a ligature preceding
an item that was shaped separately. The ligature (e.g. "fi") would
set the first two slots of the glyph array, but later replace
them with a single glyph. The next item would then get an offset
of 1, i.e. pointing to the position in the glyph array where the
glyph for i was originally contained. If this was not cleared,
it would assume the primary engine supported the character. If
the character was of an unsupported writing system, then you would
get a box in place of it instead.
[ChangeLog][OS X][Text] Fixed appending text with a different
writing system and formatting to a latin ligature.
Change-Id: Id8c81cdc8e2d8994cc1a999769fcae452c4f52ae
Task-number: QTBUG-44708
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
This involves a significant amount of memory allocation, which made it rather
more expensive than one would expect. The FT engine also caches face id, so this
seems like a reasonable prospect.
Increases delegates_text by another few ops/frame.
Change-Id: If31e6b54478e4caf46a3a12a9ac45254a1f01525
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@theqtcompany.com>
Including math.h can pollute the default namespace, and break
some compilers if cmath versions of the method are declared as using.
Switching to C++ math functions also greatly simplifies handling of
float qreal as C++ automatically chooses the right method.
[ChangeLog][QtCore][QtMath] qmath.h no longer includes math.h, so any
sources depending on that indirect inclusion may fail to build.
Change-Id: I4d0e331dafba354ec05dc5052e61ef4ff8d387fe
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.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>
Setting the stretch of a QFont did not work correctly on OS X or
iOS.
Two things are needed to make it work: First of all, we need to
properly set the transform when creating the CTFont.
In addition, we need to manually scale the advances, as
CTRunGetPositions() does not do this for us. On OS X 10.6, however,
there was a regression and CTRunGetPositions() would return scaled
positions, so we exclude the step to scale the advances on this
particular version.
This is an adaptation of bc25cfdd65452efa226cbd544c9ae9803eb6748a
in Qt 4.
[ChangeLog][QtGui][OS X/iOS] Fixed a bug when rendering fonts that
were set to be stretched.
Task-number: QTBUG-43801
Change-Id: I4902a9f5e29299761e3c2c5c6d6d80ee1dea1a25
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
Provide real implementations of:
properties(), faceId() and getUnscaledGlyph
Task-number: QTBUG-10094
Change-Id: I5899f247742406de53c68c5cd04fee6fb9b6b7d2
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
if the CTFontDescriptorRef is already contained in m_systemFontDescriptors
we leak a reference, unless we explicitly release it.
Change-Id: I5b263aa52b4433e7e28cc01164098892cc9cd2ae
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
QCoreTextFontDatabase::m_systemFontDescriptors owns the references to the
underlying CTFontDescriptorRef objects. in order to avoid a leak, we should
release them
Change-Id: I8fc6c158908e0173696cd91058ac34efb3de01d5
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
And try to make good use of them in order to match the QFont
request more closely.
Task-number: QTBUG-38482
Change-Id: I768dfa8828e370d77a1c17ecf4796d750b3edd9b
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
CoreText doesn't seem to provide us with a "maximum advance" value,
but 0 is really wrong, it leads to QLineEdit::minimumSizeHint() being
0 since it's based on maxWidth(). It even led to a negative min width
with setTextMargins(-1, 0, -1, 0).
Change-Id: I4faf8ecfb6d91e9dff66ec63651d003014503cb4
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
We should have more font weights in QFont::Weight to allow for
finer grained control.
For the time being, we can simply use intermediate weights to better
support the different font weights falling in between the ones
defined in QFont::Weight.
Also amend the documentation to clarify the fact that QFont supports
and can return weights falling outside the predefined values, which
is already the case (e.g. when using fontconfig).
Done-with: Gabriel de Dietrich
Change-Id: I693cdd48b8b77e7ed550cdf991227bcb819d8e7b
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Adding handling of the new QFont enum NoSubpixelAntialias in
QCoreTextFontEngine::imageForGlyph.
Task-number: QTBUG-40396
Change-Id: I421c38554360f5e2f822a18117190456c4d04b25
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Use Dynamic Type to resolve theme fonts, so that we get the
correct font sizes and styling based on user preferences
in Settings app.
Change-Id: I2222199a5ba21badb2e3696993eee503e720c476
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
For QLatin1String, operator== is overloaded, so comparing to a latin-1
(C) string literal is efficient, since strlen() is comparatively fast.
OTOH, QStringLiteral, when not using RVO, litters the code with
QString dtor calls, which are not inline. Worse, absent lambdas,
it even allocates memory.
So, just compare using QLatin1String instead.
Change-Id: I7af3bf3a67c55dae33ffaf9922d004fa168a3f9c
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
The fallbacks on the platform should ideally contain all fonts that
support the script passed in, but this would require populating the
font database and checking the unicode ranges for all fonts, so it
would cause a significant performance hit on Mac. What we do here
instead is just return a set of default fonts as the fallbacks
and disregard the requested script.
The consequence of this is that some special unicode codepoints were
not supported on Mac, because we weren't working with a full fallback
list.
To rectify this without breaking performance, we always add Arial
Unicode MS to the end of the fallback list as a final fallback.
This should always be present on the system and has a wide support
of different scripts.
[ChangeLog][OS X][Fonts] Fixed missing glyph box shown in place of some
uncommon Unicode code points.
Change-Id: I4fc8576bfddc8a73204aca2b16437d42c524bc79
Task-number: QTBUG-40986
Task-number: QTBUG-40549
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Extend the QImage format with two 8-bit grayscale and alpha formats.
These formats have the advantage over Indexed8 that they have simpler
conversion and can be rendered to by the raster engine.
[ChangeLog][QtGui][QImage] Added support grayscale and alpha 8-bit
formats which can also be rendered to.
Change-Id: I4343c80a92a3dda196aa38d0c3ea251b094fc274
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
The language support detection in Cocoa does not report the correct
set of languages for all fonts. One consequence of this is that e.g.
Mkhedruli (Georgian) was not supported on Mac because the
'ka' language code was not reported for e.g. the Arial Unicode MS
font.
This was never detected in Qt 4, because the writing system support
we set for each font was never used for font matching, since we let
CoreText do the matching in Qt 4.
To remedy this, we also detect writing system support based on the OS/2
table in the font. We add this in addition to the current test in case
the language list has information about fonts with incomplete OS/2 tables,
to avoid regressing.
[ChangeLog][OS X] Fixed detection of writing system support in fonts for
some scripts such as Mkhedruli.
Change-Id: I26c2a42ef45112e17d6794d8798a57c8d8aaaafa
Task-number: QTBUG-41208
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
ATSFontNotify() allocates over 30MB for no apparent reason for
applications that don't register fonts.
Change-Id: I7bbc97f53b76be1e638de8ca0d1be3a08586cf00
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Jake Petroules
Gabriel de Dietrich
Konstantin Ritt
Jake Petroules
Tor Arne Vestbø
Sérgio Martins
Andreas Hartmetz
Mathias Hasselmann
Liang Qi
Gabriel de Dietrich
Laszlo Agocs
Eskil Abrahamsen Blomfeldt
Erik Verbruggen
Robin Burchell
Jani Heikkinen
Allan Sandfeld Jensen
Frederik Gladhorn
James Turner
Tim Blechmann
Pierre Rossi
David Faure
Allan Sandfeld Jensen
Richard Moe Gustavsen
Frederik Gladhorn
Marc Mutz
Andy Shaw
Oswald Buddenhagen
Matti Paaso
Eskil Abrahamsen Blomfeldt
Samuel Gaist
J-P Nurmi