Commit Graph

1348 Commits

Author SHA1 Message Date
Eirik Aavitsland
a4f79313f0 Fix: QTextDocument::find backward search crossing paragraphs
If the start position of a backward string search was the at the start
of a paragraph, the code would start searching at an illegal position
(at the eol character) in the preceding paragraph. That caused
that whole paragraph to be skipped, so any matches there
would not be found. Fix by making sure the search starts at legal
position.

Fixes: QTBUG-48035
Change-Id: Id6c0159b6613ec75ec617a0a57096ceef2b4cbd0
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2019-06-04 07:14:03 +00:00
Friedemann Kleint
eea6c920c9 Blacklist tst_qwindow::spuriousMouseMove() on Windows
The test is failing in 5.13 for unknown reasons.

Task-number: QTBUG-72296
Task-number: QTBUG-72344
Change-Id: I24c1ad1b6def3096de99caeeebeee6e204cc75ca
Reviewed-by: André de la Rocha <andre.rocha@qt.io>
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
2019-05-20 16:43:23 +02:00
Friedemann Kleint
909f793de1 Brush up tst_QWindow
- Use nullptr
- Fix C-style casts
- Remove unnecessary casts to int from registered enums
- Fix most signedness-related warnings
- Use range-based for
- Use correct static invocation
- Set a title on shown windows to make it possible to identify
  slow tests
- Fix the class declarations, use override, member initializations
- Streamline code in some cases

Change-Id: I4c9b99126cff02136def0e03accdf1129fe6d72b
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@qt.io>
2019-05-15 19:57:06 +00:00
Oliver Wolff
3b380c8481 winrt: Return monospace font for QFontDatabase::systemFont(QFontDatabase::FixedFont)
Fixes: QTBUG-75648
Change-Id: I0e5e5e012d3cd5985d1e9a63e776e73ce2d7bf98
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>
2019-05-15 18:08:01 +00:00
Shawn Rutledge
6afdbfdaaf Use "monospace" as fallback system FixedFont in KDE theme; logging
Also de-duplicate the "monospace" string in qgenericunixthemes.cpp,
and add tst_QFontDatabase::systemFixedFont() to verify that
QFontDatabase::systemFont(QFontDatabase::FixedFont) really returns
a monospace font across platforms.  Replace commented-out qDebug()s
with qt.text.font.match and qt.text.font.db logging categories to
troubleshoot when the test fails (among other uses).  Add qt.qpa.fonts
logging category to unix themes to show default system and fixed fonts
(font engines on other platforms are already using this category).

Fixes: QTBUG-54623
Change-Id: I2aa62b8c783d9ddb591a5e06e8df85c4af5bcb0c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2019-05-07 07:48:43 +00:00
Paul Lemire
389dec3e7c Only generate temporaries when it makes sense
- Never for global inputs
- Otherwise only if the temporary is referenced more than once
  -> meaning it's actually caching the result of some operation

Tests updated accordingly.

Change-Id: Ic76615370d23dee3965ca6350d5257a8be5a3e22
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2019-05-02 12:47:05 +00:00
Lars Knoll
b4cc294347 Fix page breaking with large images
Don't go into an infinite loop breaking pages, when an image is about
as large as the page. Correctly take top and bottom margins into account
when calculating whether the image could fit on one page.

Amends change 416b4cf685.

Fixes: QTBUG-73730
Change-Id: Id311ddf05510be3b1d131702f4e17025a9861e58
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2019-04-26 18:21:18 +00:00
Paul Lemire
a552864c3b QShaderGenerator: don't generate temporary variables for global inputs
Up until now, the QShaderGenerator would create temporary variables
for uniform, attributes, const. This change makes it use the global
inputs directly rather than relying on the intermediate properties.

Change-Id: Ia9497367d61e536969fe87536606f309c286dbb2
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2019-04-10 09:52:53 +00:00
Paul Lemire
60181f13a3 QShaderGenerator: fix substitution for attributes on GL2/ES2
GL2/ES2 expect it to be attribute and not in like later versions of OpenGL.

Task-number: QTBUG-74829
Change-Id: Iddd22386ed315d6e6843d8225e49a4b73b6ad9ba
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
2019-04-10 09:52:50 +00:00
Alexander Volkov
011794130c Forward physical parameters for derived QImages
More specifically, for masks and rotated images.
Add tests for it, also add tests that image metadata is
forwarded for converted and copied images.

Fixes: QTBUG-49259
Change-Id: I05d4a468b17f53a2625500b871c01b2c53b981a1
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-04-01 15:21:27 +00:00
Alexander Volkov
685b8db13a Forward devicePixelRatio in QPixmap::mask()
Also add a test checking that devicePixelRatio is forwarded to
derivatives of QPixmap.

Change-Id: Idb2b3f033ccc0fd49bf54b11f5dffbce5a19b006
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2019-04-01 15:21:18 +00:00
Eirik Aavitsland
3b7db8ac90 Fix assert/crash when creating QBrush with null QGradient
The QBrush constructor taking a QGradient would assert or crash if
passed a null (NoGradient) gradient. But it is not necessary for the
API to be as brittle as that: instead the result can simply be a null
QBrush object, i.e. the same as the default QBrush() constructor
creates (style == NoBrush).

This issue comes up now since with the recent introduction of
QGradient presets, the API opens for using QGradient directly, whereas
earlier, only the subclasses QLinearGradient etc. were to be used.

Fixes: QTBUG-74648
Change-Id: I1a9b1c4654e4375aa6684700a262cc0946851448
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2019-04-01 11:56:42 +00:00
Qt Forward Merge Bot
a1808c5dbe Merge remote-tracking branch 'origin/5.12.2' into 5.12
Change-Id: I5f9d8090a07056411fb65d7de60eb679d00e99a3
2019-03-15 11:10:10 +01:00
Shawn Rutledge
1500d2283e Clear only one device from g_pointIdMap when all points released
The new test tst_QTouchEvent::touchOnMultipleTouchscreens()
needs the touchpoint IDs to be predictable, but another test currently
has a QEXPECT_FAIL; without release events, g_pointIdMap continued to
hold the touchpoints that were there when the test failed.  So it's
necessary to add QWindowSystemInterfacePrivate::clearPointIdMap()
to be able to call it in the test cleanup function.

Fixes: QTBUG-73830
Change-Id: Ia6a70d028be95cd2b6676db6363ec408c0b116bc
Reviewed-by: Jan Arve Sæther <jan-arve.saether@qt.io>
2019-02-26 19:52:25 +00:00
Kari Oikarinen
33707f5b2f Merge 5.12 into 5.12.2
Change-Id: I3a5721aebd3afd8fa08d3f3df6bf61502fa9c347
2019-02-20 12:37:31 +02:00
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
Allan Sandfeld Jensen
a5cded843f Avoid creating wide images with negative bytesPerLine
The QImage API can not handle images with more bytes per line than what
an integer can hold.

Fixes: QTBUG-73731
Fixes: QTBUG-73732
Change-Id: Ieed6fec7645661fd58d8d25335f806faaa1bb3e9
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2019-02-14 07:48:38 +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
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
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
Eirik Aavitsland
01f090e9e4 Fix QColor::toCmyk() for rgb(0, 0, 0)
We translate all pure gray colors into cmyk having c,m,y=0 and only
the k value expressing the darkness. But a fix introduced to avoid
division by 0 caused rgb(0, 0, 0) to be an exception to this; it ended
up being translated as c,m,y,k=1 instead.

Fix by catching the potential div-by-0 situation earlier and directly
set the orthodox cmyk translation: c,m,y=0,k=1.

Fixes: QTBUG-73171
Change-Id: I3774eaf9d96e096ac5c47c55d28881bea2bd1309
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2019-02-05 22:47:33 +00:00
Mårten Nordheim
8e500e15fa tst_qsyntaxhighlighter: fix no-op QTRY_VERIFY check
The bool is assigned on the previous line: QTRY_VERIFY will not do
anything because the statement is already true.

Change-Id: I067290e19ffd100819b2b631af431c6013623a00
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
2019-01-16 14:23:42 +00:00
Mårten Nordheim
f8f0f3eef1 QSyntaxHighlighter: cancel delayed highlight if done manually
It was an implicit effect before which stopped working after
dec7961709. Reintroduce it as some
projects used this side-effect as a way to abort the initial
highlighting.

Change-Id: I5340ee9882a242bc8b5f7f843f1cfe793a65d357
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
2019-01-16 14:23:37 +00:00
Eskil Abrahamsen Blomfeldt
e6880e7cd1 Fix text shifting vertically when elided
When eliding text we would check for the existence of the ellipsis
character and fall back to using the dot if it was not available.
However, when font merging was in use, we would also use ellipsis
from a fallback font if available. This could cause the metrics
of the text to increase if the fallback font had larger metrics,
and the result was that text could shift when elided.

It is better to prefer the dot from the current font than to use
the ellipsis from a fallback, so we only use the ellipsis if
it is in the main font.

[ChangeLog][QtGui][Text] Fixed a bug where eliding text could
change the height of its bounding rectangle for certain fonts.

Fixes: QTBUG-72553
Change-Id: Ib27fc65302465ddce661801bcc5ae32e55f1aeb9
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-12-21 10:27:12 +00:00
Friedemann Kleint
d1cafa3eba qt_imageFromWinHBITMAP(): Fix memory corruption when converting from bitmaps with low depths
Insufficient memory was allocated when asking GetDIBits() to convert to 32bit.
Fix allocation size and use a QScopedArrayPointer.

Fixes: QTBUG-72343
Change-Id: I45f79c913a243316e01bc6efed08e50ccc7d25f4
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-12-12 16:08:10 +00:00
Allan Sandfeld Jensen
9fbce8d5cb Avoid crash in blitting or fast draw when QPointF is too big
Change-Id: I88182d5d95fda15d33836f16dee78167685b3765
Fixes: QTBUG-72392
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
2018-12-11 18:32:53 +00:00
Mårten Nordheim
17ced070fd Read font selection flags and use them when querying for metrics
Certain fonts with multiple styles have the same family name. When
loading these as application fonts we were not specific enough when
querying for the text metrics. This meant that e.g. the bold version in
a font family would get the metrics of the regular one.

Fixes: QTBUG-67273
Change-Id: Ic988d62cddde0a1f77ddcaf2891cadc21c9b31e6
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>
2018-11-30 16:15:03 +00:00
Oliver Wolff
6bdf1e337d tst_qguieventdispatcher: Sync blacklist with tst_qeventdispatcher
Windows and WinRT only have on event dispatcher class so that failing
test cases in one test will most likely also happen in the other.

Change-Id: Ib047c6870e6e02f3cf8deaaa6e438ed0ac7e2d5a
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
2018-11-14 18:36:05 +00:00
Allan Sandfeld Jensen
2393551665 Fix precision in parsing hex format QColors
We document being able to parse more than 8-bit per color, but were
ignoring everything after the first 8 bits.

Change-Id: Ic85ab04b0836e6979a623e294eebd5084c1a9478
Fixes: QTBUG-71373
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-11-12 22:18:43 +00:00
Tor Arne Vestbø
27fb51fa52 macOS: Remove blacklist entries for no longer supported OS versions
Change-Id: Iae6552f1fdcf1dea07a03d3788d378af9140d1a7
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
2018-11-12 07:16:30 +00:00
Liang Qi
bc07958f92 Merge remote-tracking branch 'origin/5.11' into 5.12
Conflicts:
	.qmake.conf
	qmake/Makefile.unix
	src/gui/text/qtextdocument.cpp
	src/gui/text/qtextdocument.h

Change-Id: Iba26da0ecbf2aa4ff4b956391cfb373f977f88c9
2018-11-09 10:34:33 +01:00
Mårten Nordheim
dec7961709 QSyntaxHighlighter: Delay all highlights until first rehighlight
When calling setDocument (directly or through the constructor) a delayed
rehighlight is initiated. Previously, if any text was changed before
this rehighlight could run it would cancel the rehighlight, even if the
changed text only caused a new block of text to be highlighted.

Fixes: QTBUG-71307
Change-Id: Ib09b664d90906f5b4427105f0e45469806f3a779
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@qt.io>
2018-11-08 16:38:27 +00:00
Heikki Halmet
b1ef104866 Blacklist tst_QWindow::exposeEventOnShrink_QTBUG54040
Change-Id: Ib87d2820c4dbdf93778997b6df11cc7d8e63cf04
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@qt.io>
2018-11-01 10:27:07 +00:00
Ulf Hermann
402efef57b Don't drop update requests when closing and reopening windows
Before commit 4d15f393a7 update requests
were handled by a timer on QWindow. Therefore they survived the closing
and re-opening of platform windows. Now, as the timer was moved to
QPlatformWindow, it gets reset when you close the QWindow, and any
pending update requests are lost. However, we do set the
updateRequestPending variable on QWindow when requesting an update.
Therefore, we can also restore the update timer on the platform window
when creating it.

Change-Id: I23b00f24a46706beac7d1455edd8a5623db46b22
Fixes: QTBUG-70957
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-10-16 07:09:36 +00:00
Alexandra Cherdantseva
1192c463db QImageWriter/QPNGHandler: Quality option should be CompressionRatio
Wrong option was used to set zlib compression level for png
setCompression with negative value uses default compression
setCompression with value between 0-100 converts to zlib compression level 0-9
setCompression with positive value overrides Quality option

Change-Id: Ic4b048a1e30d6940019c2a00a6c24d0c11e3f821
Reviewed-by: Alexandra Cherdantseva <neluhus.vagus@gmail.com>
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-10-14 19:36:33 +00:00
Christian Ehrlicher
bbe08d6b68 QCss: properly parse functions which contains additional spaces
When there were additional spaces between the function definition and
the first parameter, the parser failed to parse it when it contained
another function (e.g. 'qlineargradient(... rgb() ...)').
The reason for this was that ::until() needs the function at index-1 so
it can correctly count the opening parenthesis.

Fixes: QTBUG-61795
Change-Id: I992f556e7f8cd45550f83bc90aa8de2b4e905574
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>
2018-10-12 22:01:14 +00:00
Eskil Abrahamsen Blomfeldt
720e243d88 Fix crash when detaching dangling QTextCursor
When a QTextCursor survives its QTextDocument, the internal
QTextDocumentPrivate pointer is set to null. There are checks for
this in all the QTextCursor functions to skip out early if such
a QTextCursor is used.

However, when executing the "if (d->priv)" condition in setters,
this will access the non-const operator->() of QSharedDataPointer
and detach the QTextCursorPrivate, and in the copy constructor of
this class, there was an unprotected call into priv->addCursor().

In theory, we could cast all the checks for d->priv to avoid
detaching, but in practice this doesn't matter, since the setters
will typically detach anyway later on.

[ChangeLog][QtGui][Text] Fixed a crash that can happen when calling
a setter on a QTextCursor after its QTextDocument has been deleted.

Task-number: QTBUG-70293
Change-Id: I8f6dc5bb344d1d824f673c0c220b68b7fee237a8
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
2018-09-27 06:51:37 +00:00
Tony Sarajärvi
2d587a03eb Remove insignificant flag from qtouchevent.pro
Task-number: QTBUG-46266
Change-Id: I38eb3a1da2688157e40f915b86d9a8e4c0e58f64
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Liang Qi <liang.qi@qt.io>
2018-09-25 12:50:17 +00:00
Eirik Aavitsland
b233ce66d3 QPainter cosmetic stroker: Fix painting error for FlatCap lines
Initialize the lastDir properly, to avoid the stroking algorithm doing
direction-change handling for a single line. That could cause a cap to
be painted for a single FlatCap line.

Also fixes a bug in tst_qpainter, revealed by the above fix. The
result drawPolyline was erroneously compared to the result of drawing
the lines individually, for a case where the former correctly paints
the pixel of the join point in the corner, while the latter by
coincidence used to paint the same pixel as a cap because of the bug
above.

Task-number: QTBUG-70101
Change-Id: Ie20eda33214cfe9e7627f17ef4c7a5b3835c9c24
Reviewed-by: Lars Knoll <lars.knoll@qt.io>
2018-09-25 12:32:24 +00:00
Tony Sarajärvi
17187265cb Blacklist qguiapplication::focusObject on Ubuntu and openSUSE
Task-number: QTBUG-70593
Change-Id: Ibad362cbc6660835a05412a612f34cfdaee5932c
Reviewed-by: Liang Qi <liang.qi@qt.io>
2018-09-24 21:13:12 +00:00
Eirik Aavitsland
9d1c881f49 Texture file support: add mipmap reading to ktx handler
Change-Id: Ic2c10b3e64d63d2272a8a3922d2b3f99dfd45bdb
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>
2018-09-12 08:41:38 +00:00
Tony Sarajärvi
fd6370d89f Extend opensuse blacklistings to opensuse-leap
In openSUSE 15.0 /etc/os-release the ID of the OS was
changed from "opensuse" to "opensuse-leap". So every blacklisting
we did for opensuse, didn't cover opensuse-leap. This one adds
opensuse-leap as a blacklisted platform whenever opensuse
was blacklisted.

Task-number: QTBUG-70463
Task-number: QTBUG-51399
Change-Id: I5879eb34926757163973d8b9442eae58f47d2f11
Reviewed-by: Liang Qi <liang.qi@qt.io>
2018-09-11 12:11:45 +00:00
Luca Beldi
dc73a691bf Fix QSIM::itemData returning role 255
Before this fix, QStandardItemModel::itemData returns
a map containing role 255 which is used internally to store the flags.
This role is an undocumented implementation detail so it should
not be returned to the user.

[ChangeLog][QtGui][QStandardItemModel] itemData does not return role 255

Change-Id: Ibead3cba84cfe92b3c664bc8ce87508cbcbdc9bd
Reviewed-by: David Faure <david.faure@kdab.com>
2018-09-06 11:51:28 +00:00
Allan Sandfeld Jensen
5d0ee89132 Fix reading 16bpc grayscale PNGs
They were incorrectly attempted to be read as Indexed8, instead use
the RGBA64 formats to read them with full accuracy.

Task-number: QTBUG-45858
Change-Id: I14fc3cb0d59fa2fc0e68fd870f3b32352c34161f
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-09-03 08:24:10 +00:00
Oswald Buddenhagen
fa6bab9c58 darwin: fix tst_qimage deps
the test uses CoreGraphics api directly, so it must link it explicitly.

amends b0abe20d4.

Change-Id: I734bfbedff56df731c1e528670f686565b63f3b5
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
2018-08-29 02:47:39 +00:00
Allan Sandfeld Jensen
dc82a0f4f3 Smooth image scaling for 64bit images
Adds support for smooth scaling 64bit images.

Task-number: QTBUG-45858
Change-Id: If46030fb8e7d684159f852a3b8266a74e5e6700c
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
2018-08-22 10:03:15 +00:00
Luca Beldi
d0069ff8c9 Add a method to clear the data to QStandardItemModel
After the behavior of setItemData has been changed following QTBUG-45114,
QStandardItemModel was lacking an interface to clear all the data from a single index.

Task-number: QTBUG-69616
Change-Id: Ide0b5bb6358439fc42c474df8b044fbace6def8d
Reviewed-by: André Hartmann <aha_1980@gmx.de>
Reviewed-by: David Faure <david.faure@kdab.com>
2018-08-17 07:17:12 +00:00
Liang Qi
8559bf934d Merge remote-tracking branch 'origin/5.11' into dev
Conflicts:
	src/corelib/global/qconfig-bootstrapped.h
	src/plugins/platforms/xcb/qxcbbackingstore.cpp

Done-with: Gatis Paeglis <gatis.paeglis@qt.io>
Change-Id: I4af138ffb2f5306373244523768209e8873b2798
2018-08-16 18:48:59 +02:00
Allan Sandfeld Jensen
9c9f98f2ff Implement support for 16bpc image formats
Adds support for 16bit per color image formats in QImage. This makes it
possible to read and write 16bpc PNGs, and take full advantage of the
16bpc paint engine.

[ChangeLog][QtGui][QImage] QImage now supports 64bit image formats with
16 bits per color channel, compatible with 16bpc PNG or RGBA16 OpenGL
formats.

Task-number: QTBUG-45858
Change-Id: Icd28bd5868a6efcf65cb5bd56031d42941e04099
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>
2018-08-11 14:12:48 +00:00
Eskil Abrahamsen Blomfeldt
65a1d41a09 Fix potential crash when showing line/paragraph separators
When showing line and paragraph separators at an offset from the start
of the string, the end of string pointer would be incorrectly set, and
we would read past the end of the string. If any part of this memory
happened to match the line or paragraph separator, then we would
overwrite it and have a crash.

I couldn't find any reliable way to test this, since the crash depends on
the contents of the memory after the string allocated by the algorithm.
But with an overflow of 100 000 characters, I found that it crashed every
time I ran the test.

[ChangeLog][QtGui][Text] Fixed potential crash when using
QTextOption::ShowLineAndParagraphSeparators.

Task-number: QTBUG-69661
Change-Id: I17d1996b883560bacdc7ce114c8aeb2b0108faea
Reviewed-by: JiDe Zhang <zccrs@live.com>
Reviewed-by: Michal Lazo <xlazom00@gmail.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2018-08-09 12:46:22 +00:00