Commit Graph

22265 Commits

Author SHA1 Message Date
Marc Mutz
cfdca09e91 QSslEllipticCurve: remove unneeded includes from header
Change-Id: I66b8b85e6c02b0e53391079d5048017d5e63ac8b
Reviewed-by: Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
2015-01-21 11:22:19 +01:00
Simon Hausmann
112342b326 Merge "Merge remote-tracking branch 'origin/5.4' into dev" into refs/staging/dev 2015-01-21 11:14:34 +01:00
Frederik Gladhorn
b6191b16d4 Merge remote-tracking branch 'origin/5.4' into dev
Conflicts:
	src/corelib/global/global.pri
	src/corelib/global/qcompilerdetection.h
	src/corelib/global/qglobal.h
	src/corelib/tools/qdatetime.cpp
	src/plugins/platforms/xcb/qxcbscreen.h
	src/plugins/platforms/xcb/qxcbwindow.h
	src/widgets/dialogs/qcolordialog.cpp
	src/widgets/dialogs/qcolordialog_p.h
	tools/configure/configureapp.cpp

Change-Id: Ie9d6e9df13e570da0a90a67745a0d05f46c532af
2015-01-21 11:10:14 +01:00
Thiago Macieira
3bbc1bf53b Implement the unaligned byteswap functions using the aligned ones
This leaves the decision on whether to do unaligned stores to the
compiler, as opposed to forcing it by ourselves.

Since we're now implementing them using two calls, this invalidates the
compiler bug that triggered the #ifdef for Sun Studio (whatever that bug
was).

Change-Id: I4e494ca860a15b9427b2a3000921bf5d92cbb5ef
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-21 11:08:52 +01:00
Allan Sandfeld Jensen
05feaeed43 Remove duplicated NAN/INF logic from tst_qstring
Qt already has solutions for cross platform isnan and isinf logic. We
should use that instead of duplicating it.

This should also fix compiling tst_qstring on MinGW with C++11.

Change-Id: I7b691fd47701a8f07e1a1fe08a95a0aca43ccca1
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-21 10:54:22 +01:00
Giuseppe D'Angelo
2ec2dbed67 QSslEllipticCurve: add fromLongName
Since the conversion to a long name was already there, also support
creation from a long name.

Change-Id: Iad712db7447fb0a0a18f600b7db54da5b5b87154
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-01-21 10:41:39 +01:00
Alexander Volkov
97af289954 Doc: Improve description of QTextStream::readLine()
Don't recommend a common value for maxlen, because we don't really
know it. Soften a statement about not applying QString::trimmed()
to the result because it may contain surrounding spaces.

Change-Id: Ie90db6f033cfcc0dff0ef6796ba115028bcaaa77
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-01-21 08:41:00 +01:00
Thiago Macieira
473ad206c4 Fix QSharedPointer::create and QEnableSharedFromThis
We forgot to initialize the tracker if create() was used.

Task-number: QTBUG-43696
Change-Id: Ic5d393bfd36e48a193fcffff13b740931ff2204b
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-01-21 08:23:59 +01:00
Tobias Koenig
309c804239 Haiku: Add implementation for QStandardPaths
Change-Id: Ic64a5ab3a1ef711180b855ee99154177b7e25696
Reviewed-by: David Faure <david.faure@kdab.com>
2015-01-21 06:12:42 +01:00
Friedemann Kleint
0b62cd8da7 Windows: Fix coordinate offset when positioning the taskbar on the left.
For windows that do not have WS_EX_TOOLWINDOW set, the WINDOWPLACEMENT
API uses workspace/available aera coordinates. Introduce a helper
function to return the offset and use that.

Task-number: QTBUG-43872
Change-Id: I329c640f180524699b45b855b4583f447c4a0987
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2015-01-20 19:59:23 +01:00
Friedemann Kleint
8c5b3c6d91 Fix QVERIFY() in tst_qwidget.
Replace by QCOMPARE where applicable; introduce message to generate
output for failed comparisons with QVERIFY2().

Task-number: QTBUG-43872
Change-Id: I09c8f9fd31ceed224e441f253049f68907ca0d7a
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2015-01-20 19:59:18 +01:00
Simon Hausmann
fc8adfea9f Introduce helper for QML to allow creating QWidget hierarchies
Commit 1259c5768e410361bcd8b5cf0c2057a2ebabda83 in qtdeclarative removed the
ability to create QWidgets in QML by giving them the correct parent, which
requires calling QWidget::setParent instead of QObject::setParent. This patch
introduces a hook that will allow QtQml to give widgets a proper parent.

Change-Id: I84c57ca5032582c43e405219343d55ac9cf2ffa0
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
2015-01-20 16:15:45 +01:00
Kai Koehne
463c559962 MSVC: Silence warning about right shift by too large amount
Silence the MSVC warning that got introduced in commit 62b752b3a2:

warning C4333: '>>' : right shift by too large amount, data loss
qdebug.cpp(316) : see reference to function template instantiation 'void putEscapedString<uchar>(QTextStreamPrivate *,const Char *,int,bool)' being compiled
with
[
Char=uchar
]
qdebug.cpp(270) : warning C4333: '>>' : right shift by too large amount, data loss

Change-Id: If1ee20b741feae3287a8d6a11c202b4296d429fb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-01-20 16:15:06 +01:00
Alex Trotsenko
a373ffcda9 QIODevice: remove ineffective caching members
Most of the QIODevice functions already have a locally cached
"sequential" flag. Make the rest of them follow this strategy.
This eliminates the need to use private caching members.

Change-Id: I0edb2c9b7c5f411c5bee25c425e7b40e3c9021d3
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: hjk <hjk@theqtcompany.com>
2015-01-20 10:37:59 +01:00
Arnaud Bienner
bdcb3f9aab QHeaderView: fix restoring Qt4 state.
When multiple sections were grouped together, sectionItem.size was the total size of grouped sections, not the size of one section.

Task-number: QTBUG-40462
Change-Id: I401a1583dd30880ccf5b4c105a237d6563f212e8
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
2015-01-20 10:30:54 +01:00
Konstantin Ritt
64c6bfd1f4 Fix crash with multi threaded QFont/QTextEngine usage
Since we don't configure HB-NG via its configure script, we have to
define all optional switchers we do care about by our own.
Some of these switchers were missing in harfbuzz-ng.pro, causing
HB-NG to be built with no threading support.

Task-number: QTBUG-43850
Change-Id: I0944a68fe0bfae3306a3e6085e25704f0d0d0efc
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
2015-01-20 05:47:32 +01:00
Morten Johan Sørvig
ee1afbb8aa tst_qstring_mac: Correct memory management.
The NSStrings return by QString::toNSString are autoreleased;
manually releasing them is not correct. The test still
works (no leaks or double deletes) since there is no
autorelease pool in place when running it.

We don't want to encourage incorrect usage: remove
the release call an add an autorelease pool.

Change-Id: Ic566fd3a8efd6cbc0eb6db850248a68bfc8fed0b
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
2015-01-20 05:47:16 +01:00
David Faure
027d2fc846 Doc: add missing since 5.4 for new sessionProtocol() methods.
They were added in 233a2f37bf, which is in
5.4, but the \since information was missing.

Change-Id: I346a049cad75647fdcd7b64df80dc169bb4ec70a
Reviewed-by: Richard J. Moore <rich@kde.org>
2015-01-19 20:50:48 +01:00
Laszlo Agocs
91d6aafad4 Windows: avoid generating exposes on plain moves
The fake expose generation for shrunk windows is causing
side effects with desktop GL: it will generate expose events
even when only moving the window. This is bad. So change the
condition to look for shrinking and do nothing if the size is
same as before.

This is reported to cause perf issues with e.g. QOpenGLWindow
or similar where an expose does an immediate repaint (potentially
with block swap).

Task-number: QTBUG-32121
Change-Id: I4687ea8210cee6691d608450c48b1dbef52d6df3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 17:48:05 +01:00
Laszlo Agocs
6a081125a5 Make -static -opengl dynamic builds succeed
Right now it breaks in qwindowseglcontext due to its ifdefs for
static ANGLE-only builds. The checks for QT_STATIC should be
extended with QT_OPENGL_DYNAMIC so that it continues to resolve
functions dynamically in -opengl dynamic builds even when combined
with -static.

Task-number: QTBUG-43993
Change-Id: Iac6d0353ef16a32a22ab1db0a833fbb0165f328c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 17:48:01 +01:00
Laszlo Agocs
23996a9e40 Windows: make TranslucentBackground functional always
QOpenGLWidget and QQuickWidget was not functional when
WA_TranslucentBackground was set. This is due to the
static "isGL" type of checks that are not suitable since 5.3
due to RasterGLSurface windows which may or may not be
OpenGL windows, depending on their content.

To handle this, we have to do some check on every makeCurrent
and perform the necessary calls (most importantly
SetLayeredWindowAttributes).

Task-number: QTBUG-43854
Change-Id: If19c79482ec4f0a8b795ee710d52ed7e08b52563
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 17:47:56 +01:00
Marc Mutz
447ef9766a src/testlib/testlib.pro: add missing qbenchmarksmetric.h
Change-Id: I9b879bb22f3e3f74e55234730d9cf79221812a36
Reviewed-by: Jason McDonald <macadder1@gmail.com>
2015-01-19 16:08:10 +01:00
Andy Nichols
d7068cbe1b Make threaded rendering possible with LinuxFB
It was previously not possible to render to a QBackingStore
with the linuxfb platform plugin because of both the use of
a QTimer created on the main thread and there was no lock
on the backing store surface (which would lead to copy content
to screen that being rendered in another thread).

Change-Id: I0ea3600316ce29eb89f6595997847afe7086116f
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-01-19 15:55:00 +01:00
Rainer Keller
668a3a4da1 Autotest: Use QFINDTESTDATA to find test data
Change-Id: Ie6c659f6d8e8b3eeaf2453f0cba6189d56f86581
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
Reviewed-by: Richard J. Moore <rich@kde.org>
2015-01-19 15:53:51 +01:00
BogDan Vatra
a15569b269 Android: don't report xfail
Change-Id: I2998632cffc29161eb26421b07cf51a4138fcad3
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
Reviewed-by: BogDan Vatra <bogdan@kde.org>
2015-01-19 15:48:50 +01:00
Joni Poikelin
1909ab4b8f Add test for QColorDialog initial color
Task-number: QTBUG-43548
Change-Id: I9410072e5bf837933148d48c4f9d6797337485f5
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-01-19 15:41:10 +01:00
Eskil Abrahamsen Blomfeldt
2603873e75 Make harfbuzz-old fallback available at run-time
The old harfbuzz code path is included as a fail safe for any
possible use case where the Harfbuzz-NG regresses, but because the
variable was checked statically, it was not actually possible to
build a releasable executable which employed the work-around.

Instead we use the regular global static pattern where the variable
is queried the first time it's needed.

Task-number: QTBUG-43850
Change-Id: I9ade76bf0825bbfefebdbdc4e6ee5571f1a3deec
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2015-01-19 13:50:32 +01:00
Friedemann Kleint
a8f37e4775 Windows: Delay creation of the static OpenGL context.
Delay initialization/GL detection until a surface is requested.
Remove member variable from window and access static context
from QWindowsIntegration only.

Task-number: QTBUG-43832
Change-Id: I4b9a324b58af4399df5c314bfb2b952455b1e080
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
2015-01-19 13:18:02 +01:00
Giuseppe D'Angelo
5ee8ed27e0 rcc: fix build failure on Windows XP / MinGW 4.9
The code makes usage of _fileno without including the appropriate
header, which is stdio.h according to Microsoft:

http://msdn.microsoft.com/en-us/library/zs6wbdhx%28v=vs.120%29.aspx

Task-number: QTBUG-43900
Change-Id: Ic9d407c66243d64823353a1c7e79cf0825c735db
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
2015-01-19 13:17:56 +01:00
Eskil Abrahamsen Blomfeldt
2a86bf8ce0 Android: Fix canonical form of nonexistent paths
On some Android devices, the realpath() implementation will return
the full path even if the path does not exist. This breaks the
expectation of the canonical path, which should be empty for
nonexistent paths. A few autotests failed due to this.
To work around it, we query existence before getting the
canonical path.

[ChangeLog][Android] Fixed canonical path for nonexistent paths on
some devices.

Change-Id: I5c1dabb8b8394694bc74d2a91912800aaff6b9e3
Task-number: QTBUG-43705
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-01-19 12:21:19 +01:00
Maks Naumov
4c6ab8f9e2 QToolBox: remove redundant QAbstractButton::text() from paintEvent()
Change-Id: I95773096ca1b915468c086ba61eba2e3e551a7e3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 11:38:34 +01:00
Kai Koehne
ca6fb5436d MSVC: Disable warning C4996 for freetype
Change-Id: I22be0faca29989142cd2fa0eaed6846fc40d3f4b
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 11:24:35 +01:00
Kai Koehne
826d108410 WinRT: Disable compiler warning 4996 for debug builds
Move compiler warning 4996 from level 3 to 4, like we did already for
desktop builds: 0a76b6bc7f .

Change-Id: Ic4bbaeb3104352a915b15eec7a9c9dda9a5cceec
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Maurice Kalinowski <maurice.kalinowski@theqtcompany.com>
2015-01-19 11:24:26 +01:00
Sérgio Martins
9087df6bd2 windowflags test: Fix showing which flags are set
The text edit that shows which flags we have set should be updated in
PreviewWindow::setWindowFlags() and PreviewWidget::setWindowFlags()
but QWidget::setWindowFlags() isn't virtual so only the base class
one was called.

Change-Id: I5c9d47d003d5701dde1ab63df0d349f641d66f44
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 11:17:49 +01:00
Oswald Buddenhagen
553a3661c1 Bump version
Change-Id: I250fa893cdf831d03f9217b5dc0a5aa2f9a6a6b5
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-01-19 10:54:37 +01:00
Ulf Hermann
0310cef332 FusionStyle: Don't try to draw null pixmaps
We have the same check for null already for PE_IndicatorHeaderArrow
which actually uses the same pixmap. If the file is not found the
pixmap will be null and the code dividing by its width or height will
thrown an arithmetic exception.

Task-number: QTBUG-43067
Change-Id: I13a5ee9f21f4189b7bbcfd57a6f5b52113de834d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: J-P Nurmi <jpnurmi@theqtcompany.com>
2015-01-19 10:53:10 +01:00
Daniel Teske
c243dd5643 QIncrementalSleepTimer: Use QElapsedTimer instead of QTime
Since the former is monotonic and we need a monotonic timer here.

Change-Id: I34325da4fe0317e12f64629a6eef6a80990c3e1a
Reviewed-by: Daniel Teske <daniel.teske@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-01-19 10:50:08 +01:00
Sze Howe Koh
c49641a117 Doc: Fix typos
Change-Id: I29d5576902a5d1ea25558e980081952d9157f7f0
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2015-01-19 10:48:03 +01:00
Sze Howe Koh
0f5b970894 Doc: Remove references to QOpenGLContext::destroy()
This function is private.

Task-number: QTBUG-35907
Change-Id: I370c0bfd8fda11c68ee76ee42967f117a81b381c
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2015-01-19 10:48:00 +01:00
Pierre Rossi
890ae41d06 Fix a crash in QPlainTextEdit::documentChanged
The layout for an invalid block is very likely to be null, it
shouldn't be accessed without checking the block's validity first.
We can make the check a bit more conservative and simply check that
the block isn't empty.

Change-Id: Ic1459a6168b1b8ce36e9c6d019dc28653676efbe
Task-number: QTBUG-43562
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
2015-01-19 10:47:28 +01:00
Andy Shaw
7c9497ad6a Respect the hotspot passed in for the cursor
When the hotspot is set to be QPoint(0,0) then QPoint will see this as
being a null QPoint. However, it is a valid position as far as the hot
spot for the cursor is concerned, so we default to QPoint(-1,-1) instead
and check for that.

Task-number: QTBUG-43787
Change-Id: Ibf6253033016c4b556b8a2a79c89819a4d5825cb
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 10:44:54 +01:00
Andy Shaw
730d07df83 Account for pixmap's device pixel ratio when calculating the label size
When determining the size of the QPushButton's label then the device
pixel ratio of the pixmap used to represent the icon needs to be taken
into consideration so it is rendered correctly.

Change-Id: If32760b120d7a749a51e2c30592d621c0e63dace
Reviewed-by: Pierre Rossi <pierre.rossi@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-19 10:44:48 +01:00
Andy Shaw
17cce24648 Only call ShowWindow() once when going from FullScreen to Maximized
Since going from FullScreen to Maximized is taken care of inside the
FullScreen block then we don't want to call ShowWindow() again in the
Maximized block. Therefore the Maximized block is moved so it is only
invoked if it is not coming or going to fullscreen.

As the minimized case is not accounted for in FullScreen that is left as
is in its own if block.

Task-number: QTBUG-43849
Change-Id: I3141347e072c50b2a4475098d7b8ee0b207578a7
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-01-19 10:44:42 +01:00
Marc Mutz
b69c2e86de QFreeList: fix undefined behavior
Signed integer overflow is undefined behavior ([expr]/4),
but unsigned arithmetic doesn't overflow, so isn't
([basic.fundamental]/4, footnote there).

So, use unsigned arithmetic for the loop-around serial
number generation in incrementserial(). While we're at
it, also use it for the masking operation in the same
function.

Found by UBSan.

Change-Id: I500fae9d80fd3f6e39d06e79a53d271b82ea8df8
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-19 10:43:45 +01:00
Marc Mutz
62a96dbb53 QTextFormat: fix undefined behavior
Left-shifting of negative values is undefined ([expr.shift]/2).

Since hashValue is a uint already, rectify by casting it->key to
uint prior to shifting.

Found by UBSan.

Change-Id: I94a5311f5a4492f514f595b8fb79726df1e7d0de
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-19 10:41:57 +01:00
Marc Mutz
390ea21873 QByteArrayMatcher: fix undefined shift
The REHASH macro is used in qFindByteArray() with a char argument.
Applying the shift operator promotes (a) to int. The check in
REHASH, however, checks for the shift being permissible for
_unsigned_ ints.

Since hashHaystack is a uint, too, rectify by casting (a) to
uint prior to shifting.

Found by UBSan:

  src/corelib/tools/qbytearraymatcher.cpp:314:72: runtime error: left shift of 34 by 30 places cannot be represented in type 'int'

Change-Id: Id09c037d570ca70b49f87ad22bed31bbb7dcc7fb
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-19 10:41:22 +01:00
Marc Mutz
b18e6396bd QBenchmarkResult: fix uninitialized value
This manifested itself in a UBSan report about loading a non-enumerated
value from an enumeration variable:

   src/testlib/qbenchmark_p.h:95:7: runtime error: load of value 11091, which is not a valid value for type 'QBenchmarkMetric'

(or similar).

The chosen value is simply QTest::QBenchmarkMetric(0).

Change-Id: I8492a871a71d89fa6f7902d38f9eecee4b060646
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-01-19 10:41:09 +01:00
David Faure
7fc8c560e2 Fix QPrinter::setPaperSize regression when using QPrinter::DevicePixel
The QPageSize-based refactoring led to casting DevicePixel to a QPageSize::Unit
value of 6 (out of bounds). And then the switch in qt_nameForCustomSize
would leave the string empty, leading to "QString::arg: Argument missing: , 672"
warnings.

Change-Id: I85e97174cc8ead9beccaaa3ded6edfad80f8e360
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Andy Shaw <andy.shaw@digia.com>
2015-01-19 10:39:55 +01:00
Rainer Keller
20480070a6 Autotest: Selftests fail in UTC timezone
Selftests for testlib fail when executed in UTC timezone because local and
UTC are the same, but expected to be different. A custom timezone is used
instead.
Debug output of qCompare does only handle local and non-local timezones, using
new Qt5 features allows to show the correct timezone in format string.

Change-Id: I753884a12370952b7b62a90d62896db4f2d3d1b4
Reviewed-by: Jason McDonald <macadder1@gmail.com>
2015-01-19 10:21:26 +01:00
Liang Qi
cd389e4584 Fix possible divide by zero in QMacStyle
[ChangeLog][Widgets][QMacStyle] Fixed a possible divide by zero crash.

Task-number: QTBUG-43398
Change-Id: I8b5c6fd87d07eb42ad43e8c2405b7cad19372b86
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@theqtcompany.com>
2015-01-19 08:21:01 +01:00