Commit Graph

29488 Commits

Author SHA1 Message Date
Friedemann Kleint
7f66289f9d Windows QPA: Introduce command line options for DirectWrite
Add option "nodirectwrite" to turn off DirectWrite fonts
and "nocolorfonts" to turn off DirectWrite for colored fonts.

Task-number: QTBUG-55096
Task-number: QTBUG-55097
Change-Id: If12133fbd20dc7657b3616eff833a8e8c116e070
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-08-05 14:34:58 +00:00
Liang Qi
ac9d19c986 Merge "Merge remote-tracking branch 'origin/5.6' into 5.7" into refs/staging/5.7 2016-08-05 16:02:50 +00:00
Simon Hausmann
131b7c8f64 Fix permissions on lock files on Unix
We should create the files with 0666 and let the umask take care of adjusting
to the final permissions in the file system.

[ChangeLog][QtCore][QLockFile] Fixed permissions on lock files on Unix to
allow for adjustments via umask.

Change-Id: Iee6a6ac3920d0ffd4465f54ac6e955f7fe087173
Reviewed-by: Denis Shienkov <denis.shienkov@gmail.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: David Faure <david.faure@kdab.com>
2016-08-05 14:27:04 +00:00
Simon Hausmann
4e6440acf8 Improve reliability of callgrind benchmark results
When running under callgrind, do not bother with the use of the watchdog. The
constructor waits for the thread to start, which adds an overall run-time cost
that depends on the OS scheduling.

Change-Id: I162e2e311c43a6892ebc67dea39899e40babb61d
Reviewed-by: Robin Burchell <robin.burchell@viroteck.net>
2016-08-05 14:25:58 +00:00
Edward Welbourne
ceabcc0142 tst_QString: unit test for broken toLocal8bit() error-handling
We can't (at present) actually exercise the failure in
QWindowsLocalCodec::convertFromUnicode() that prompted us to consider
the possible failure here, but we should at least test for it.

Change-Id: I5066c88d7b4caeb48aebc6b79c355fa49e1c581c
Reviewed-by: Frederic Marchal <frederic.marchal@wowtechnology.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-05 12:57:59 +00:00
Kai Koehne
b92f5a0f3b Remove hiding of .main div in offline pages
The section got introduced in commit 93d35c07d0, but is
ignored by browsers so far due to a non-blank space (0xc2 0xa0).

Task-number: QTBUG-55115
Change-Id: Ie0668b89c7151c934f40e033100a544011a583d8
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2016-08-05 12:45:19 +00:00
Alex Trotsenko
1ceee31ae0 Fix tst_QProcess::closeWriteChannel() under Windows
Sometimes, this test fails in CI due to notifications arriving
asynchronously from the OS. This happens inside closeWriteChannel()
call, where we are flushing the write buffer and I/O completion on
the read pipe could occur there as well. So, take this into account
before waiting for the new incoming data. Also, improve the checks
on successful reading and writing.

Change-Id: Iabe875fc346eb4420c72d03208d22ea861a570c6
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-08-05 10:16:54 +00:00
Jesus Fernandez
4cb44c744c Added pointer check in QFontDatabase::load
CID 11131 (#1 of 1): Dereference after null check (FORWARD_NULL)46.
var_deref_op: Dereferencing null pointer fe.

Change-Id: Ifc0cd0b208db511516db93c3d0e0367299df6d80
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@theqtcompany.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2016-08-05 10:05:49 +00:00
Andreas Wilhelm
ebde32ae3d qdbusxml2cpp: Ported to QCommandLineParser
Change-Id: I8a91a376ba60b110fff9eb84e1b02e3c6e8c5e30
Reviewed-by: Rolf Eike Beer <eb@emlix.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-05 10:00:51 +00:00
David Faure
434c522695 Improve performance of QColor::name, now more than 4 times faster
Before: HexRgb: 0.00230 ms per iteration, HexArgb: 0.00290 ms per iteration
After:  HexRgb: 0.00051 ms per iteration, HexArgb: 0.00061 ms per iteration

This showed up as a relevant optimization when profiling KIconLoader
which uses QColor::name() as part of the key -- thanks to Mark Gaiser for
the investigation and first suggestion of a solution. I have also seen
customer code writing a replacement for QColor::name() because it was
too slow to be used as a hash key.

Change-Id: I009ccdd712ea0d869d466e2c9894e0cea58f0e68
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-08-05 09:56:12 +00:00
Alex Trotsenko
eb4bcdd8ce QNativeSocketEngine::option(): return a correct value on invalid call
Instead of 'true', it should be '-1'.

Change-Id: I5e8f99153da68d34b37477ef4cedbc447fba347f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-08-05 08:30:18 +00:00
Friedemann Kleint
2cd2cba086 QtPlatformSupport: Add QAbstractFileIconEngine
Move the code from QtWidgets/QFileIconEngine into a new class with
virtuals in QtPlatformSupport so that platforms can reuse it.

Prototypically use the class in the Windows and macOS QPA plugins.

Remove QPlatformTheme::fileIconPixmap() and change the type
of the hint QPlatformTheme::IconPixmapSizes from QList<int>
to QList<QSize> so that it fits better with the icon code.

Change-Id: I580e936f3507218757565ca099272cd575b3a779
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-08-05 08:06:21 +00:00
Liang Qi
69ef0481fc Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
	tests/auto/widgets/itemviews/qtreeview/tst_qtreeview.cpp

Change-Id: I6f3878b204464313aa2f9d988d3b35121d4d9867
2016-08-05 08:58:48 +02:00
Andy Shaw
9b3a7ece47 Re-add the space character as a document terminator
With change 208496091d the space character
was replaced with a visual document terminator character. However this
meant that if the whitespace was visualized without the document
terminator character visualized then clicking after the text would cause
it to be positioned off by one.

By bringing back the space character when the terminator is not being
visualized then it will correctly place the cursor at the end of the
text.

Change-Id: I335c1773a37a654f3196bd350562e8f92ffd5369
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-08-05 05:56:18 +00:00
David Faure
91a2c8630b QUrl::resolved: keep treating file:name.txt as relative for now
8a33077 made QUrl::resolved() follow its documentation ("If relative
is not a relative URL, this function will return relative directly.",
where relative means scheme is empty).
However there is much code out there (e.g. qtdeclarative) which relies
on QUrl::fromLocalFile("fileName.txt") to be treated as relative, so
for now, we still allow this (in Qt 5.6.x). For Qt 5.8, this commit will
be reverted.

[ChangeLog][QtCore][QUrl] [EDITORIAL: replaces 8a33077] QUrl::resolved()
no longer treats a URL with a scheme as a relative URL if it matches
this URL's scheme. For now it still treats "file:name.txt" as relative
for compatibility, but be warned that in Qt 5.8 it will no longer
consider those to be relative. Both isRelative() and RFC 3986 say that
such URLs are not relative, so starting from Qt 5.8, resolved() will
return them as is.

Change-Id: Iff01e5b470319f6c46526086d765187e2259bdf5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2016-08-04 19:55:30 +00:00
Jake Petroules
47511046a4 Fix rasterwindow example
At least with the eglfs platform plugin, the QBackingStore constructor
results in a null pointer access if done before creation.

Change-Id: I2e78e70700fa48499a35c55797e1b962b6e6285a
Reviewed-by: Rebecca Worledge <rebecca.worledge@theqtcompany.com>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2016-08-04 19:55:14 +00:00
Anton Kudryavtsev
9c8a8e90a6 QString: fix append(const QStringRef &str)
Use QStringRef::isNull instead of QStringRef::string()
for validation. Non-NULL str.string() may yet leave us
with a useless str.unicode(), which is the actual problem here;
whereas !str.isNull() does really confirm that str.unicode()
is sensible.

Such test prevents situation like:

const QString a;
QString b;
b.append(a); // b.isNull() == true
b.append(QStringRef(&a)); // b.isNull() == false

Auto test updated: create QStringRef from QString directly, without
any condition.

Change-Id: I082cd58ef656d8a53e3c1223aca01feea82fffb9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-08-04 19:55:04 +00:00
Kai Pastor
35117590c8 Remove unneeded ';' after some macros
The unneeded ';' triggered warnings in pedantic compilation mode.

Change-Id: Id2324823e138560bb25234306601253d7bbd713e
Reviewed-by: Richard J. Moore <rich@kde.org>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2016-08-04 19:52:18 +00:00
Anton Kudryavtsev
955b2bdfc0 QString: de-duplicate code of variants of lastIndexOf()
Re-use methods of QStringRef.

Change-Id: I0f79ee6767653c694ac6a342263c046a5f5f3baa
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2016-08-04 15:46:12 +00:00
Alex Trotsenko
595c6abf9d QLocalSocket/Tcp: open device before making a connection
According to QLocalSocket's documentation, connectToServer() must
initiate a connection attempt after opening the device. Otherwise, if
a connection succeeds immediately, connected() signal will be emitted
on closed device. So, this patch ensures that TCP-based implementation
behaves correctly.

Change-Id: I4cc9474815e091a1491a429a6dc17f9cf0154f58
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-04 15:25:39 +00:00
charlycha
457d91bb07 raspberry pi: manage eglfs display id with env var
Specify the display to use by setting environment variable
QT_QPA_EGLFS_DISPMANX_ID Possible values are :
0: MAIN LCD
1: AUX LCD
2: HDMI
3: SDTV
4: FORCE LCD
5: FORCE TV
6: FORCE OTHER

Change-Id: I146db9a7f423bd4c6c1716c64d3df4d2388e85f9
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2016-08-04 15:23:09 +00:00
Friedemann Kleint
46ea82188e Add XDG file icon support for UNIX themes
Add helper class XdgFileIconHelper using the icon theme engine
to implement QPlatformTheme::fileIconPixmap().

[ChangeLog][QtPlatformSupport] KDE/Gnome themes now implement
QPlatformTheme::fileIconPixmap(), showing file icons.

Change-Id: I32a948ece08305053ebadb3ace6cbc6fbd339946
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-08-04 14:31:20 +00:00
Friedemann Kleint
40bb2d29b9 Add QPlatformTheme::fileIcon()
Add a way to return an icon instead of a pixmap of a specific size for a
file for usage by QFileIconProvider, etc.
Fall back to fileIconPixmap() if fileIcon() returns a null icon.

This allows for supporting XDG theme icons and Qt Quick applications
accessing file icons.

Change-Id: I9ffbd6602e1a6a490c0046d950636447c5127474
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-08-04 14:31:15 +00:00
Allan Sandfeld Jensen
b643d6f347 Fix 64-bit bilinear scaled image sampling
A constraint ensuring we do not sample beyond the current scan-line
was missing in the SSE2 optimized sampling.

Discovered with lancelot.

Change-Id: Ib0ece8f8bfaa034733873dc5b8baaaad5d4c0380
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
2016-08-04 12:01:04 +00:00
BogDan Vatra
bc4ce55fff Don't call virtual functions with data from an old model
Change-Id: I4f1ec56ce722110042f72761bbc2976e580b7149
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2016-08-04 11:48:51 +00:00
Marc Mutz
2079081dcf QPolygon: prepare boundingRect() to be extracted as an algorithm
That basically involves reformatting the loop to use iterators.

Change-Id: Ie8e80e7f32b386eae50ab4520c62219e18d2a1bd
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
2016-08-04 10:46:11 +00:00
Marc Mutz
ecec9edd5a QPolygon: add a smoke-test for boundingRect()
Nothing fancy, just a safety-net for a following refactoring.

Change-Id: I5be87c86cd61e24bf96881d2485dd7560ea6184a
Reviewed-by: Gunnar Sletta <gunnar@sletta.org>
2016-08-04 10:46:06 +00:00
Timur Pocheptsov
2d1f137173 Revert "Implement protocol upgrade for HTTP/2 enabled requests"
This reverts commit 12d71f4ea2.
This change is breaking a build + incomplete as my test revealed.
Will have to re-try later.

Change-Id: I7ea089093a832aa5822caaaac56e62f5fda4df17
Reviewed-by: Liang Qi <liang.qi@qt.io>
2016-08-04 10:21:24 +00:00
Marc Mutz
4a40c717f3 Optimize QString::compare_helper(QChar*, int, char*, int, cs)
... by using the recently-added QUtf8::convertToUnicode()
and a QVarLengthArray instead of QString::fromUtf8().

Like elsewhere in QString, use a QVarLengthArray<ushort>
instead of the more natural <QChar> to avoid instantiating
another QVLA.

Assume that length2 is usually set to a non-negative value.
Not because that's necessarily the frequent case, but
because a negative length2 leads to an expensive strlen,
that usually dwarfs the additional branch cost.

Check for data2 == nullptr early to avoid having to check
it later twice.

Change-Id: I04bda44ed857451efdf04c3283b5726480dd8c0d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-04 09:28:41 +00:00
Jędrzej Nowacki
31520c4fc0 Add missing include in qeventloop_p.h
The code depends on qApp to be visible in the scope

Change-Id: Ibeb54c90f5a65f441e9eb90b848952b955c71f0d
Reviewed-by: Jesus Fernandez <jesus.fernandez@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-04 08:47:52 +00:00
Jędrzej Nowacki
33ec04d299 Cleanup QDBusVirtualObjectPrivate
The class doesn't exist and should not be forward declared nor declared
as private of QDBusVirtualObject

Change-Id: Icf3ca2b2be5ae0a8111785af485a0b6601002a25
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-04 08:47:40 +00:00
Allan Sandfeld Jensen
a9a61d7e0b Fix grayscale painting regression in 64-bit raster engine
A new define for better vectorized compositioning had a mistake that
caused some sources to be converted to grayscale when composited.

Added two 10 bit per channel formats to the lancelot test to catch
regressions in the future.

Change-Id: I1c468e6b93d68185e517fc0d44c6c927f9f7135f
Reviewed-by: Erik Verbruggen <erik.verbruggen@qt.io>
2016-08-03 15:35:28 +00:00
Kai Koehne
8ce18a52f2 Remove hiding of .main div in offline pages
The section got introduced in commit 93d35c07d0, but was apparently
ignored by browsers due to a non-blank space (0xc2 0xa0).
In commit b3959b515f the space was replaced, causing browsers
to hide the content.

Task-number: QTBUG-55115
Change-Id: I491f8721da5f2a964e450d4a0bee785a937ac7e4
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2016-08-03 15:33:49 +00:00
Timur Pocheptsov
12d71f4ea2 Implement protocol upgrade for HTTP/2 enabled requests
Without ALPN/NPN (== without OpenSSL) we can negotiate HTTP/2
using the protocol upgrade procedure as described by RFC7540.
Since there is no TLS handshake, after our http channel was connected
we first send an 'augmented' HTTP/1.1 request - its header
contains additional 'HTTP2-Settings' and 'Upgrade' (to 'h2c') fields.
If we receive reponse 101 (switch protocol) we re-create a protocol
handler and switch to HTTP/2.

Task-number: QTBUG-50955
Change-Id: I36e9985e06ba76edaf7fdb22bb43770f8d593c61
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-08-03 15:31:20 +00:00
Kai Koehne
f200d5e824 Doc: Fix references to Control, Meta key enums
Also make use of qdoc's \note command.

Change-Id: I276300cfcfde06e82b04793dbf25df8ec73e9838
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-08-03 13:45:00 +00:00
Marc Mutz
ed38f516bf QStringListModel: begin/endResetModel() are no signals
... so don't use emit on them.

Just confuses readers.

Change-Id: I24365fc533b5b35f8942d6014dbc68387aa23e22
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2016-08-03 12:10:00 +00:00
Friedemann Kleint
d1a30be5ab Polish the findfiles example to be actually useful
- Simplify the code, remove unused members
- Fix the translations of plurals to use %n
- Add tooltip displaying full paths in list
- Add context menu allowing to copy the name and  open
- Display the correct slashes on Windows
- Connect the returnPressed() signals of the line edits
- Make the search recursive
- Do not search binary files by checking the mime type

Change-Id: I3663799c88931db1f58c03ea35211e7ab03737ec
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-08-03 11:53:55 +00:00
Friedemann Kleint
d5be0d3058 Polish the codecs example
- Port to Qt 5 connection syntax.
- Remove unneeded member variables.
- Adapt to screen size.
- Add a tab widget with a hex dump view to the preview dialog.
- Handle conversion errors in preview dialog,
  add status label displaying errors and warnings about failures
  and invalid characters encountered.
- Fix translated messages.

Change-Id: I916100c903e73d0d2326523753ed7398b1c34df0
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-08-03 11:53:47 +00:00
Friedemann Kleint
dbfd7f304c Windows QPA: Add missing parameter to qWarning()
The warning printed when wrapping foreign windows is
missing a parameter. Amends change
f2ef587906.

Task-number: QTBUG-41186
Change-Id: Iefbd174c1acc42e87fd1a764d96452b1745aa4c0
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2016-08-03 11:53:32 +00:00
Jędrzej Nowacki
d7132c6c6d Add std::nullptr_t as builtin type in QMetaType
Change-Id: If6c484bc89a2610c6a9e3e7bd54ef85ef40a783f
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-08-03 11:49:28 +00:00
Alex Blasche
958bc5793f Add QtAndroidPrivate::context()
This simplifies the retrieval of the correct Context object.

Task-number: QTBUG-55102
Change-Id: I303bc5393a7900ceb4bde36e711938f3f49075c1
Reviewed-by: BogDan Vatra <bogdan@kdab.com>
2016-08-03 11:49:27 +00:00
Konstantin Shegunov
5dd907bf63 Save QFont's style name if present
Font style names are quite irregular and the simplistic matching
implemented in QFontDatabase::styleString(const QFont &) is unable to
properly resolve the style name when font is recreated from a string.
This causes the fonts before and after serialization to be considered
different, even though they are not. The from/toString methods were
made to write and respect the exact font style.

[ChangeLog][QtGui][Important Behavior Changes] QFont::toString() and
QFont::key() were modified to save the font's style name if one is
set, invalidating any stored font identifiers. QFont::fromString()
was also adjusted to accommodate the change.

Task-number: QTBUG-54936
Change-Id: Ibc7c54119acdd8f0950d6049cc89f859bf981504
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2016-08-03 11:47:58 +00:00
Alex Trotsenko
5a133a404e Polish SCTP examples
- Introduce a common header file for client and server;
- Update license headers;
- Fix minor issues.

Change-Id: I3fc42fd5ba32141c702fc6679a27bf0b6a16fd26
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-08-03 11:46:21 +00:00
Clemens Sielaff
2a24c3c268 Fixed Bug in QVariant comparison when containing QStringLists
As it were, QStringLists were not handled explicitly when comparing
QVariants. If both QStringLists contained only a single entry, they
were treated as QStrings - if both QStringLists were empty, there were
equal (correctly so) - but if one of the QStringLists had more than
one entry, the compare function fell through to returning always 1.
As discussed here:  https://stackoverflow.com/a/38492467/3444217

Added rich comparison tests for all non-numerical, non-recursive
QVariants that support them (except QModelIndex and
QPersistentModelIndex)

Task-number: QTBUG-54893
Change-Id: Icc5480d9ba056ee5efe83da566c5829caa1509d7
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@theqtcompany.com>
2016-08-03 11:16:35 +00:00
Allan Sandfeld Jensen
0cec01190f Fix registered style name of sub-families
An old line redefined the altStyleName variable causing sub-families to
be registered with their language-name as their style-name.

Change-Id: I8c21ad556f53ffd62f8ef9b326fb9431eea1d857
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-08-03 10:35:08 +00:00
Alex Trotsenko
733c4de36e Fix some syntax issues in SCTP implementation
Change-Id: I718fd060e313d544a5470fa20183db04ef89b1ca
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
2016-08-03 06:21:47 +00:00
Friedemann Kleint
dbb5c95f4d Windows QPA: Handle key event sequences of surrogates
Emoji characters as input by the virtual keyboard are received
as a sequence of surrogates. Store state internally when a high
surrogate is received and send off the sequence when the matching
low surrogate is received via input method.

Task-number: QTBUG-50617
Change-Id: I91e763ec3e0747d6852f7c5c2057a67b0c24e0f5
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-08-03 06:12:36 +00:00
Giuseppe D'Angelo
c0637c0298 QObject::connect: allow to disable narrowing of the connection arguments
One of the good features of the new connection style is that
implicit conversion is performed for the connection arguments.

However, this is also a bad feature when it comes to the old
C remnants in the C++ language: for instance, doubles implicitly
convert to ints, possibly losing precision (and GCC/Clang do not
even warn about those under -Wall, only MSVC does) or even
triggering undefined behavior.

For this reason, when using braced initialization, C++11
disables narrowing conversions or floating/integral conversions.
Use this feature when checking the arguments of a PMF-style
signal/slot connection. Technically this makes the program
ill-formed, however GCC still accepts it (but at least
warns under -Wall).

Hence, add a way to disable these implicit conversions.
This is a opt-in and guarded by a macro, as it's a source
incompatible change.

[ChangeLog][QtCore][QObject] The
QT_NO_NARROWING_CONVERSIONS_IN_CONNECT macro has been added.
When using the new connection syntax (PMF-based) this macro
makes it illegal to narrow the arguments carried by the signal,
and/or to perform floating point to integral implicit
conversions on them. When the macro is defined,
depending on your compiler a QObject::connect() statement
triggering such conversions will now fail to compile.

Change-Id: Ie17eb3e66ce0cd780138e60d8bb7da815a4ada83
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2016-08-02 23:03:15 +00:00
Friedemann Kleint
9b1db44c2a Polish charactermap example
- Use Qt 5 connection syntax.
- Introduce helper function to calculate the square size, remove
  the existing 24 pixel limitation since that makes it impossible
  to render 20pt fonts.
- Add filter chooser for font filters.
- Add menu and info dialog showing DPI and default fonts.
- Streamline code

Change-Id: I0cd4d0475b5a7ed3c475de7a413abebbe688dfe2
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>
2016-08-02 18:57:49 +00:00
Allan Sandfeld Jensen
65f5a7558a Cleanup canonical font name lookup
Changes the lookup of the canonical "english" font name, so that also
corresponding style-name and preferred names can be found.

This patch does not use that extra information, and should not change
any behavior.

Change-Id: I40805f81e6b35dcc98f9459c5cf96f13a8d789f2
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2016-08-02 14:33:37 +00:00