Commit Graph

38291 Commits

Author SHA1 Message Date
Yuhang Zhao
11111c5a7d qmake: Optimize for speed instead of size
Change-Id: Ide06365f3ba0db673749a9938afc18fdf7480542
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-18 23:03:48 +00:00
Tor Arne Vestbø
0a2e91328e macOS: Set up platform window reference before initializing QNSWindow/Panel
Initializing the window will end up in [NSWindow _commonAwake], which calls many
of the getters. We need to set up the platform window reference first, so we can
properly reflect the window's state during initialization.

Change-Id: I5349273b1930ee8a57dc518db74be90d2426f61c
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-02-18 22:58:07 +00:00
Tor Arne Vestbø
7319c342c3 macOS: Implement QNSWindow/QNSPanel mixin using preprocessor includes
We want to share the implementation between the two classes, but
Objective-C doesn't natively have a mixin-feature. Instead of using
dynamic super-calls at runtime (which worked fine, but added
complexity), we now do the mixin at compile time using the
preprocessor.

The dynamic-super feature is left in, in case we need it in other
areas in the future.

Change-Id: I95dfa7f18cba86cc518e963dd018944ef113ac06
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-02-18 22:57:53 +00:00
Tor Arne Vestbø
6273b484b3 macOS: Remove redundant tracking of modal sessions in QCocoaWindow
Change-Id: I43a40889b0731e4b480155256fc51eaa836e62a3
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-02-18 16:45:48 +00:00
Tor Arne Vestbø
c36c5e9b55 macOS: Modernize worksWhenModal handling
The code in QCocoaEventDispatcher was dead and could be removed.

Change-Id: I0c57e64791045d65033376c096220983059028ba
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-02-18 16:45:48 +00:00
Tor Arne Vestbø
025128a7e0 macOS: Simplify QCocoaWindow::setVisible
We don't need all the checks for the event dispatcher, it should
always be there.

Change-Id: Ib89a9c1c5524b49c2d85fae12425d19ced960597
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-02-18 16:45:48 +00:00
Tor Arne Vestbø
c7318e899e macOS: Remove dead code in window activation handling
Change-Id: I321ab68b51c4ba63204c0e15fec74164e2c93d34
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-18 16:45:43 +00:00
Joerg Bornemann
8fe3680193 Add cmdline feature to qmake
[ChangeLog][qmake] A new feature "cmdline" was added that implies
"CONFIG += console" and "CONFIG -= app_bundle".

Task-number: QTBUG-27079
Change-Id: I6e52b07c9341c904bb1424fc717057432f9360e1
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
2019-02-18 07:12:14 +00:00
Joerg Bornemann
0c03316ec9 Revert "Fix determination of OpenGL include paths on macOS"
This reverts commit 37970d7b3e.

That commit broke the build on macOS, because the OpenGL headers aren't
resolved anymore at configure time.

Change-Id: Iec6ef009c9ea7e28b12eeca6b5eb06918bf49d98
Fixes: QTBUG-73827
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>
2019-02-16 16:25:24 +00:00
Joerg Bornemann
feb5fdd0cf Fix OpenGL ES2 build on Linux
The feature detection in QOpenGL test project file needed adjustment.

This amends commit dd988e20.

Change-Id: I7efaaec9fbf564be4033e99a8554dbe51322f494
Fixes: QTBUG-73592
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
2019-02-15 12:58:12 +00:00
Lorn Potter
44b91a619d wasm: fix building examples and applications
This fixes a bug where app build would fail with AssertionError: SIMD is
used, but not supported in WASM mode yet

Change-Id: I27d5eb00b2c869b890dc519a7a793b7f87aeb9d2
Fixes: QTBUG-73795
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-02-15 08:44:27 +00:00
Oswald Buddenhagen
2634ba5b4d qmake: don't mess up linking order of frameworks
make it "last one wins", consistently with regular libraries. this
isn't really relevant in qmake, because the order matters only for
static frameworks, which qmake defines out of existence.

note that specifying frameworks by full path does not work, so we
don't need to amend 9d76beee5 in that regard.

Change-Id: Ib027109339e1b5973c577d69906b6daf83ba9611
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-14 19:29:48 +00:00
Samuel Thibault
501cca2c4b Add <features.h> include to hurd-g++ mkspec
Without this include, __REDIRECT does not get defined, and then
open gets #defined to open64, leading to bogus MOC output.

See https://bugs.debian.org/920613.

Change-Id: I629d9dc6af05b9480c0c81a61d8890ab8bbefaae
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-14 14:24:56 +00:00
Andy Shaw
a34077ceac Windows: Freetype: Load fonts from the user locations
Since Windows 10 update 1809 it is possible to install fonts as a user
so they are only available for use by the user and not on the system.
So this location in the registry needs to be checked as well when
looking for available fonts.

Fixes: QTBUG-73241
Change-Id: I5d808e38b80dde8189fe8c549a6524bd559e30c7
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2019-02-14 07:39:06 +00:00
Joerg Bornemann
797f686ea4 Turn bcm_host library into makeSpec source
The bcm_host library couldn't be detected anymore. Let the makespec
provide LIBDIR, INCDIR and LIBS for bcm_host to fix this.

Change-Id: I4bc268504dc48edaf2884f1c14b745260fd9112c
Fixes: QTBUG-73727
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
2019-02-14 07:27:34 +00:00
Edward Welbourne
4b4a288f5f Recognize UNC paths as absolute (i.e. not relative)
IoUtils::isRelativePath() didn't attempt to consider UNC paths, due to
a belief that qmake fails on them so badly that it wasn't worth the
extra code.  However, it turns out Qt Creator's copy of this code does
need to take this into account, so start the change off in qmake's
version so as to keep in sync.

Task-number: QTCREATORBUG-21881
Change-Id: I3084b87c1d3ca6508255e94e04ac8db3ceaebb7e
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-13 14:15:10 +00:00
Oliver Wolff
a2c9f9433a winrt: Handle WaitForWindowExposed
As winrt does not have native windows, exposure check was just done by
checking, whether the window is the active window. If a window is shown
fullscreen though, winrtscreen will be resized. This resize triggers a
resize of every maximized or fullscreen window that is shown.
If we enter or leave full screen mode, we have to wait until the screen
resize and the subsequent window resizes are done and only then we can
consider the windows properly exposed.

This patch reverts 54bcb9d42f  and thus
unblacklists tst_QGraphicsItem::cursor on WinRT.

Fixes: QTBUG-73545
Change-Id: If469fce319ed6b3a5d56b7bf3cbc11929b72bb11
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
2019-02-13 14:04:58 +00:00
Oliver Wolff
083c03e22b qmake vcxproj generator: Use correct version in solution header for 2017
Change-Id: I360202c88a8da84f3ecaf43304fcf6f5a992b953
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-13 14:04:57 +00:00
Joerg Bornemann
4aafe68e1a qmake vcxproj generator: Update platform toolset and solution header for VS 2019
Change-Id: Id01f28f2ef3e271fa48dddf5f8ccb6b057180aa0
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-13 14:04:56 +00:00
Oliver Wolff
896b307679 Add support for Visual Studio 2019
Change-Id: I963fc1c159edc644f081675c3dee248c25d7c9dc
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
Reviewed-by: Andre de la Rocha <andre.rocha@qt.io>
2019-02-13 14:04:54 +00:00
Eskil Abrahamsen Blomfeldt
736cc1d564 Don't wrongly detect fonts as oblique
We were interpreting bit #8 as the oblique bit, but this is the
WWS-conformity bit. Bit #10 is the oblique bit.

[ChangeLog][Windows] Fixed an issue where loading fonts from files or data
would sometimes mistakenly classify them as oblique.

Fixes: QTBUG-73660
Change-Id: Id9e5012d1b89d0bee0e966c5105657b38834e13a
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2019-02-13 13:28:36 +00:00
Joerg Bornemann
9f3cdf3d44 INSTALL: Remove outdated reference to Windows CE
Change-Id: Ie4960ab6632642094b97d8eeae5bfe17b0aad633
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@qt.io>
2019-02-13 13:01:57 +00:00
Joerg Bornemann
2dcfaf7bee qmake/vcxproj generator: Fix bug in extra compiler initialization
QMake ignored every extra compiler that sets variable_out and whose
output does not have a builtin compiler (C++, C).

What the code wants to achieve is to ignore extra compilers that put
their output into variables that are handled "somewhere else already",
e.g. are in the otherFilters list. Evidence for that is to be found in
the addOnInput == true if branch.

Task-number: QTBUG-71283
Change-Id: I8c1d76febccacb450cd14ad7a1f4b87726832312
Reviewed-by: Brett Stottlemyer <bstottle@ford.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2019-02-13 13:01:49 +00:00
Tor Arne Vestbø
18f415e46d QBackingStore: Make QPlatformBackingStore creation lazy
Some platform backing stores may require that the window has been
created, so let's defer the platform backingstore creation until
absolutely necessary.

Change-Id: Ib93151c6473e3bbe77d994782d84289c2f63bcf2
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-13 12:37:18 +00:00
Tor Arne Vestbø
6c18f86af7 Track call sites of QMacAutoReleasePools for debugging pool usage
Printing pools by calling [NSAutoreleasePool showPools] will now give
a more detailed view of where the various pools in the stack were
created, eg:

AUTORELEASE POOLS for thread 0x1000be5c0
17 releases pending.
[0x107802000]  ................  PAGE  (hot) (cold)
[0x107802038]  ################  POOL 0x107802038
[0x107802040]       0x107791c70    ^-- allocated in function: main
[0x107802048]  ################  POOL 0x107802048
[0x107802050]       0x1073b2e80    ^-- allocated in function: QCocoaWindow::initialize()
[0x107802058]       0x107111ed0  NSCompositeAppearance
[0x107802060]       0x107111ed0  NSCompositeAppearance
[0x107802068]       0x107111ed0  NSCompositeAppearance
[0x107802070]       0x1073bbe10  __NSCFString
[0x107802078]       0x1073bbde0  _NSViewBackingLayer
[0x107802080]       0x1073bc100  NSWeakObjectValue
[0x107802088]       0x1073bbe40  QNSView
[0x107802090]       0x1073bbe40  QNSView
[0x107802098]       0x107111ed0  NSCompositeAppearance
[0x1078020a0]       0x107111ed0  NSCompositeAppearance
[0x1078020a8]       0x1073bbe40  QNSView
[0x1078020b0]  ################  POOL 0x1078020b0
[0x1078020b8]       0x1073bbe30    ^-- allocated in function: QCocoaWindow::recreateWindowIfNeeded()

Change-Id: I97faf30db5835fea2f05320435b1b8c334a478d1
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-13 12:37:00 +00:00
Kai Koehne
d6c474b49b QTextDocument: Do respect white-space:nowrap
Prevent automatic insertion of line-breaks in blocks formatted with 'white-space:nowrap'.
This follows the example of white-space:pre.

Fixes: QTBUG-54787
Change-Id: If26f6a54106a02fe0e388947f6368ae4e86acf63
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-02-13 08:14:47 +00:00
Tor Arne Vestbø
81fd7f4c8a macOS: Add auto-release pool during QCocoaScreen::deliverUpdateRequests()
Checking the application's keyWindow will autorelease the window, and
there's no root pool in place when called from the display-link thread.

Change-Id: Ic43164ad6397c92b858fb549f7a00e28b6110849
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 22:19:38 +00:00
Andre de la Rocha
3850404114 Windows QPA: Handle mouse input using legacy messages
This change reverts to using legacy mouse messages when handling mouse
and touchpad input, while using pointer messages to handle touchscreen
and pen input. The use of pointer messages to handle everything, added
in 5.12.0, caused issues in some particular cases, due mainly to
differences in behavior or bugs in the pointer messages, which required
workarounds in the Windows QPA, which didn't work well in all cases and
led to additional issues. For instance, DoDragDrop() does not work when
called by pointer (or touch/pen) handlers, but only after OS-synthesized
legacy mouse messages are generated. Also, in some cases pointer messages
for mouse movement are generated as non-client for client area events.
Modal loops like the ones in window resize/move and menu handling caused
some issues with pointer messages, as well. Also, we have to handle the
OS-synthesized legacy mouse message generated for touch and pen. Ignoring
them while letting the gui layer synthesize mouse events for touch/pen
may break Drag and Drop by triggering DoDragDrop() before legacy messages,
which can result in a hang inside the DoDragDrop() modal loop. This change
should fix most regressions related to pointer messages, while keeping
the enhancements in pen and touch input.

Fixes: QTBUG-73389
Fixes: QTBUG-72624
Fixes: QTBUG-72801
Fixes: QTBUG-73290
Fixes: QTBUG-72458
Fixes: QTBUG-73358
Fixes: QTBUG-72992
Change-Id: I919f78930d3965270ef2094401e827ab87174979
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2019-02-12 22:17:54 +00:00
Andre de la Rocha
80bcfa776f Fix QSpinBox tests failing after change in the Windows QPA
Some QSpinBox tests start failing after reverting to using legacy mouse
messages to handle mouse input in the Windows QPA. It seems to be caused
by a test that runs before it and moves the mouse cursor. Then when the
QSpinBox tests run, they create widgets that appear below the mouse
cursor, causing some mouse events to be generating and messing with the
events synthesized by the test itself. With the pointer messages being
used for mouse input, the legacy mouse messages that are generated under
this condition were being ignored. But by reverting to the old
implementation, the legacy messages are handled again, causing the test
to fail. This change moves the mouse pointer to a safe position during
the test initialization, so it does not depend on the state left by
previous tests. This change needs to be integrated together or before
the change in the windows QPA.

Change-Id: I91f7e9376dc495ee61250e0a7d908c1c2b685bc8
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2019-02-12 22:17:40 +00:00
Tor Arne Vestbø
77389ad8ff macOS: Remove screen-update disable during resize
It was needed as a workaround for the window border and window content
becoming out of sync when we were drawing and flushing to the layer
from another thread using OpenGL. Since we've disabled ThreadedOpenGL
we can remove this workaround for now.

The workaround also had other problems, as windowWillResize: did not
turn out to be a reliable signal to know when a window was about to
resize. Since we override windowWillUseStandardFrame:, we would not
get the callback when zooming windows. Conversely, if we removed the
windowWillUseStandardFrame: override, we would get a single callback
for windowWillResize:, and then multiple callbacks that the window
had resized. In addition, windowWillResize: is not only used as a
callback, but also as a way to let the window delegate restrict the
size, so it's called when e.g. AppKit determines the standard frame
of the window -- an operation that doesn't involve an actual resize
operation.

If we re-introduce a workaround using screen-update disabling we need
a better hook than windowWillResize:, and we need to track when we
disable screen updates so that we can pair them up with corresponding
screen update enables, otherwise we'll get log messages in the console
about "SLSReenableUpdate: unbalanced enable/disable update".

Change-Id: Ifca8892083c8666976391a4ada8f8d1471493943
Fixes: QTBUG-73726
Task-number: QTBUG-69321
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 18:34:29 +00:00
Tor Arne Vestbø
0ad651579f macOS: Don't rely on QGuiApplication::instance() during CVDisplayLink callback
The display-link callback comes in on a secondary thread, so there's a possible
race in using QGuiApplication::instance() to check whether or not we're on the
main thread.

Change-Id: Ic26bca8f5f54847a1e1b11dc92e786693c86e9de
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-02-12 18:34:28 +00:00
Tor Arne Vestbø
ae94ab264b Add developer documentation on how to debug missing auto-release pools
Change-Id: Ie3942210ab5bafea22d65d6f7c9a099e40ee6b73
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-02-12 18:34:25 +00:00
Tor Arne Vestbø
6b8610f4e8 macOS: Add explicit auto-release pool for requestActivateWindow
The API is often called from main before entering the event loop,
and the making the window first responder and key will autorelease
both the window and view.

Change-Id: Ie2a7dc14652015cbe802b57696e4a82d564e2dc0
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 18:34:21 +00:00
Tor Arne Vestbø
c4e9eabc30 Don't allow backingstore flush to non-raster surfaces
Change-Id: I8e85706727a8c5f7585e34e3864c8a9f48481b92
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 13:53:16 +00:00
Joerg Bornemann
aed1e2c49f Fix warning in tst_qopengl.cpp
This fixes warning: unused parameter ‘glFormat’

Change-Id: I4865300fb99ea5392b96f8e9f4f594f15f18625c
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2019-02-12 13:32:10 +00:00
Joerg Bornemann
37970d7b3e Fix determination of OpenGL include paths on macOS
Since include paths are fully resolved, we must remove the code that prepends
the SDK path to the OpenGL include paths.

Change-Id: I80d74629c7fc989a89c3f1d95d6de43b4c1de17a
Fixes: QTBUG-73736
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 12:58:44 +00:00
Tor Arne Vestbø
da55a1b041 Widgets: Only set WA_WState_ExplicitShowHide via public API
Calling QWindow::setVisible doesn't have the same semantics, so we
split off QWidget::setVisible into QWidgetPrivate::setVisible and
call that instead from QWidgetWindow.

Task-number QTBUG-67504

Change-Id: Ie50938d4a1d33ad4b59c742e75e3ca30f1b19399
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-12 12:11:24 +00:00
Mitch Curtis
7faec58d5c Fix crash when using Qt Virtual Keyboard with QCalendarWidget
For some reason, QCalendarWidget gets filtered press events that were
intended for Qt Virtual Keyboard's input panel (QQuickView), so we have
to make sure that the window is indeed a QWidget - no static_cast.

Change-Id: Ibc9dce956918ac50d1fed8231a445b7338aef09c
Fixes: QTBUG-72925
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
2019-02-12 11:26:22 +00:00
Laszlo Agocs
2e12bfdc1e eglfs: avoid breaking builds without EGL_EXT_platform_base
Change-Id: I9183e17b42c00435f20c00a414e1f20aa3972351
Fixes: QTBUG-72559
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
2019-02-12 10:50:52 +00:00
Eric Lemanissier
fd88c152db configure: use proper separator for mingw libraries
Change-Id: Ic328691fe2f08e918c1bb67910521d85b274a8fd
Fixes: QTBUG-73466
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
2019-02-12 05:48:58 +00:00
Yuhang Zhao
3b87ecc06a Win32 makefile for qmake: Use proper linker
Use xilink for ICC and lld-link for Clang.

Change-Id: I13c74339ae9e3e5c97210afd20a53c7e474b873b
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-02-11 23:27:57 +00:00
Tor Arne Vestbø
9f22ac0aa0 macOS: Don't send redundant geometry change events for top level windows
Top level windows already get their geometry changes via windowDidMove
and windowDidResize.

Change-Id: Ie6370aa290ef48c8b3ac770e77adb57ce43cbb47
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-11 01:42:04 +00:00
Tor Arne Vestbø
17e5158570 macOS: Treat default swapInterval (-1) as vsync-enabled display-link
Change-Id: I6d3d241d3813bfac36155ad219d4a338cb1ef6f7
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-11 01:41:56 +00:00
Tor Arne Vestbø
21e25ff38b macOS: Simplify mouse tracking
We don't need to react to updateTrackingAreas, as we only have a
single tracking area that we can add once and forget. By asking
AppKit to track all events in the visible rect, we can also pass
a zero-rect for the tracking area.

Change-Id: I2545712adc49b51904d5adc11f1faca36901b49d
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-02-11 01:41:51 +00:00
Tor Arne Vestbø
4697467e98 macOS: Explain QNSViewMouseMoveHelper for future generations
Change-Id: I61f38ee38d5afb657cd8b76b2b9dba1dac7167b4
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
2019-02-11 01:41:44 +00:00
Tor Arne Vestbø
6f9e444c28 harbuzzng: Remove assumption about Core Text working in 96 DPI
Core Text doesn't actually have a concept of DPI internally, as it
doesn't rasterize anything by itself, it just generates vector paths
that get passed along to Core Graphics.

In practice this means Core Text operates in the classical macOS
logical DPI of 72, with one typographic point corresponding to one
point in the Core Graphics coordinate system, which for a normal
bitmap context then corresponds to one pixel -- or two pixels for
a "retina" context with a 2x scale transform.

Scaling the font point sizes given to HarfBuzz to an assumed DPI
of 96 is problematic with this in mind, as fonts with optical
features such as 'trak' tables for tracking, or color glyphs,
will then base the metrics off of the wrong point size compared
to what the client asked for.

This in turn causes mismatches between the metrics of the shaped
text and the actual rasterization, which doesn't include the 72
to 96 DPI scaling.

If a 96 DPI is needed, such as on the Web, the scaling should be
done outside of HarfBuzz, allowing the client to keep the DPI of
the shaping in sync with the rasterization.

The recommended way to do that is by scaling the font point size,
not by applying a transform to the target Core Graphics context,
to let Core Text choose the right optical features of the target
point size, as described in WWDC 2015 session 804:

https://developer.apple.com/videos/play/wwdc2015/804/

GitHub-PR: https://github.com/harfbuzz/harfbuzz/pull/1484
Change-Id: I830f0cd7a82552422bbe09226e2d571e246fe3f4
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2019-02-11 01:41:32 +00:00
Lars Knoll
035d80407b Fix two smaller bugs in the BiDi engine
Remove wrong code changing the Bido level of line separators. This
lead to wrong ordering of the string in case the line separator was
meant to be ignored and the string should be rendered in one line. Line
breaks are anyways already reset to the paragraph level by the algorithm
and reordering is done on a line by line basis, so this will work
correctly when doing proper line breaking.

Secondly fix a small bug found while testing the above change, where
we wouldn't set the correct levels for boundary neutrals and explicit
embedding chars because we did that processing before we were fully
done with the BiDi algorithm.

Change-Id: Id88f91cd58d2ab29be864aef34ca1727c1586611
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2019-02-09 08:01:26 +00:00
Lars Knoll
79f2a9e666 Fix an assertion in the BiDi algorithm
The algorithm has been treating DirB inconsistently so far.
initScriptAnalysisAndIsolatePairs was treating it differently
than generateDireationalRuns leading to assertions.
It wasn't visible in our test data, as DirB is in almost all cases the
paragraph separator, where we split strings anyway.

Change-Id: I7dc0e7bbcf30ee84d8781ea06097da023e371f05
Fixes: QTBUG-73238
Reviewed-by: Robert Loehning <robert.loehning@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2019-02-09 08:01:16 +00:00
Lars Knoll
4247d7c5a0 Fix QTextTable:insertRows() for tables with spanning cells
Don't resize the height of cells spanning several columns
multiple times.

Fixes: QTBUG-36713
Change-Id: I5eb45892f2008e6a4f85745b56efd04323e25673
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2019-02-09 08:01:08 +00:00
Edward Welbourne
c066656aff Avoid read-outside-array error by QStringRef over-reach
Constructing a QStringRef directly from the string, offset and a
length is UB if the offset + length exceeds the string's length.
Thanks to Robert Loehning and libFuzzer for finding this.
QString::midRef (as correctly used in both changed uses of QStringRef,
since 432d3b6962) takes care of that for us.  Changed one UB case and
a matching but correct case, for consistency.

In the process, deduplicate a QStringList look-up.
Added tests to exercise the code (but the one that exercises the
formerly UB case doesn't crash before the fix, so isn't very useful;
the invalid read is only outside the array it's scanning, not outside
allocated memory).

Change-Id: I7051bbbc0267dd7ec0a8f75eee2034d0b7eb75a2
Reviewed-by: Anton Kudryavtsev <antkudr@mail.ru>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-02-08 13:56:25 +00:00