Commit Graph

24734 Commits

Author SHA1 Message Date
Lars Knoll
6508365c04 Skip loading of index files if we are running with --prepare
This makes generation of the index files 3 times as fast.

Change-Id: I89af86e54d932fa19330f36a33af6ed9ea81461d
Reviewed-by: Martin Smith <martin.smith@digia.com>
2015-07-23 07:43:17 +00:00
Erik Verbruggen
795476c41a QStateMachine: remove left-over method.
This method was probably there in older versions of the specification,
but it is no longer used now. The only caller was in
QStateMachinePrivate::setError, which has been changed to use the newer
methods.

Change-Id: Ic4961990d8d2c902676e63193d3f30ef427e6f0c
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
2015-07-23 07:36:38 +00:00
Joerg Bornemann
50f064f788 fix -no-opengl build
Change-Id: Id3570cf10d86908ddff35be65103d16b353dad04
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-07-23 07:10:03 +00:00
Marc Mutz
d348d40473 QColor: make nothrow move-assignable and -constructible
The move special members were inhibited by the presence of
user-defined copy ctor and assignment operator, which we
cannot remove since the class is exported.

Change-Id: I54fe6c28351fe69ca4b75066adb76ea07c959dfe
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:14:05 +00:00
Sérgio Martins
b549758c61 qvariant: Pass a couple of large types by const-ref in Qt6
sizeof is approx 100 bytes

Change-Id: Ibd5fb50674effee832ce4529d737c060c570ffa3
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-07-22 21:13:30 +00:00
Sérgio Martins
e3d0ea7680 qjsonarray: Remove a copy-ctor in Qt6
Makes the class trivially-copyable

Change-Id: I5b8ebadf351b65344f7ee30f0e7211738fdf54e4
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
2015-07-22 21:13:24 +00:00
Marc Mutz
b1b3083dec qdoc: replace some inefficient QLists with QVector
The types are either too large or too small for QList, which
only has acceptable performance with movable types of size
= sizeof(void*).

Change-Id: I5a2354e9400baad44095f1eac18d76ef915f6545
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:13:17 +00:00
Marc Mutz
14dde164dc tools: mark some types movable/primitive
They are held in QList or QVector.

Change-Id: Ic0e379560e554e5cd3de4319e402ec1655e77874
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:13:13 +00:00
Marc Mutz
47e6ddb2c0 QSet/QQueue/QStack: remove docs for removed special member functions
Commit 5c44232122 removed
the functions, but not the docs.

Change-Id: If12ec8a268cf67c7a62ba4f523360e0c79ce63ca
Reviewed-by: Martin Smith <martin.smith@digia.com>
2015-07-22 21:13:08 +00:00
Marc Mutz
e7df7091ee QLocale: mark some private types movable/primitive
Because they are.

Change-Id: I7f0b595fed568becdc33d1705fc8d7e372ec0c9d
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:13:03 +00:00
Marc Mutz
63c4f9bc36 doc: QTimeZone::OffsetDataList is a QVector, not a QList
Change-Id: Ib5eb635fe267b743b970714c99db8c0abc9ac2c8
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:58 +00:00
Marc Mutz
c91b53f6fa QStringRef: make nothrow move-assign- and -constructible
The move special members were inhibited by the presence
of a non-trivial copy constructor/assignment operator
and destructor. Restore them.

While we're at it, move all the special member functions
we should not have defined into an #if QT_VERSION block.

Change-Id: I873a99bfefe03e0fb02676e3431fd51f8c8f0adc
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:49 +00:00
Marc Mutz
8f38e6fcda QRegExp: remove pointless QRegExpCharClass copy special member functions
They do exactly what the compiler-generated ones would do,
but their presence inhibits the move special member function
from being synthesized.

Change-Id: Ib2046dbcee3c21ac3b5087f41d19e2a4a3e0a54f
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:45 +00:00
Marc Mutz
a83be780ae QXmlStreamAttribute: make nothrow move assignable and -constructible
Unfortunately, we cannot rely on Q_DECL_EQ_DEFAULT, so I
needed to code the special member functions by hand.

The 'reserved' field is pretty useless, since the
existing ctors didn't initialize it, but just in
case someone finds a way how to store information
in there, deal with the field in the usual way:
set to nullptr in the move ctor and swap in the
move assignment operator.

Change-Id: I15a5f61807cb67deb6e979d4f3e5a260384b20ab
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:41 +00:00
Marc Mutz
4cbc19d3dc QItemSelectionRange: make nothrow move-assignable and -constructible
The move special members were inhibited by the presence of
a user-defined copy ctor, which we cannot remove since the
class is exported.

Change-Id: I7118588b808387f2733d93216c8c3b117666bb9e
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:37 +00:00
Marc Mutz
562c01d04e QItemSelectionRange: use ctor-init-list
Avoids default-constructing two QPersistentModelIndex
instances just to copy-assign to them.

Change-Id: I0f3e04e3d202f58905f74df44d37dba27911a927
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-07-22 21:12:32 +00:00
Marc Mutz
02affdb891 QItemSelectionRange: add nothrow member-swap
Change-Id: Ie550f4a66b3c623b0ec630c18f38bcd96f6bbc99
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 21:12:25 +00:00
Kavindra Palaraja
f8441c071f Clarified the documentation for QTextDocument::find.
QTextDocument::find has a behavior that is different from the typical
QRegExp/QRegularExpression behavior where finding a given expression is
always constrained by the paragraph (block), regardless of newline
characters in the expression.

Task-number: QTBUG-21785
Change-Id: Ia6a061c6feb5a19e6b8caa3d8009da5ca31ec422
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
2015-07-22 20:20:12 +00:00
Friedemann Kleint
5f5db1c38b QTestLib: Add macros QTRY_VERIFY2_WITH_TIMEOUT(), QTRY_VERIFY2().
Add QTRY_VERIFY2_WITH_TIMEOUT() similar to QTRY_VERIFY_WITH_TIMEOUT()
except that QTRY_VERIFY2() is used below the loop and QTRY_VERIFY2()
based on it.

Add tests to cmptest.

[ChangeLog][QtTest] Added macros QTRY_VERIFY2_WITH_TIMEOUT(), QTRY_VERIFY2()
making it possible to output a message after the timeout has expired.

Change-Id: I587e24f3aeb73542dbf3ccb936a16f2e0806555f
Reviewed-by: Mitch Curtis <mitch.curtis@theqtcompany.com>
2015-07-22 19:32:39 +00:00
Timur Pocheptsov
7089c98383 QPdfEnginePrivate - fix for '-qreal float' build.
Literals 1. or 0. have type double, but QGradientStop.first is qreal and
thus can be float depending on platform/configuration, making
qBound call invalid (qBound(0., qreal_value, 1.) for example).

Change-Id: Idab668d417a148bffe2495009ae700de980b73cc
Task-number: QTBUG-47319
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2015-07-22 15:51:10 +00:00
Milian Wolff
c05f2d04f2 Optimize moc: Preallocate space for list of arguments on the stack.
This removes the temporary QList allocations.

Change-Id: I1f255e94730202f719e0a97b9ab4a83e28b805c1
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-22 15:25:41 +00:00
Friedemann Kleint
aa42a1a67e QTestLib/Windows: Try to obtain a stack trace on crash.
Add a helper class for resolving debug symbols by dynamically
loading dbghelp.dll and try to obtain a symbol at the exception
location and a stack trace by using CaptureStackBackTrace().

The output looks like:

A crash occurred in d:\dev\projects\crashingtest_5d\debug\tst_crashingtesttest.exe.

Exception address: 0x0000000052E2853A
Exception code   : 0xc0000005
Nearby symbol    : QString::length

Stack:
 #  1: windowsFaultHandler() - 0x00007FFE080CACD0
...
 #  8: QString::length() - 0x0000000052E28530

[ChangeLog][QtTest] A stack trace will be output on standard error
if a test crashes.

Task-number: QTBUG-47370
Change-Id: I7217e02ec7dc0c96132fe84d1a175d0bed9c5aaf
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2015-07-22 14:49:35 +00:00
Ron Bessems
a0e2e715f5 Fixed null pointer dereference
Crash in qtwidgets.dll when Qt app is used with accessibility tools like
Dragon. Crash due to null pointer dereference.

Task-number: QTBUG-47093
Change-Id: I140196ba44b68dfaf229dd8a8e6031379ea1acac
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com>
2015-07-22 13:48:16 +00:00
Nico Vertriest
f9eb2534de Doc: Add Q_MV_IOS to ignored C++ directives
Enumeration QSysInfo::MacVersion uses a macro to define
enumeration values. QDoc gets confused about it and
prints a lot of warnings.

Adding the macro to ignored directives does not resolve
the documentation issue completely (enum values still
show up as '?'), but it gets rid of the warnings.

Task-number: QTBUG-43810
Change-Id: Ie4009646a78c62b5f1860d29855d3941e79d9388
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2015-07-22 13:47:35 +00:00
Nico Vertriest
e6ddae07e1 Doc:added doc to undocumented functions
Task-number: QTBUG-36985
Change-Id: Ic358682b276d67ef804f727bcf14191718613469
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2015-07-22 13:47:23 +00:00
André Klitzing
9499cf33b7 Replace old C-style cast
User gets compiler warnings for plugins if "-Wold-style-cast" is enabled

Change-Id: I142ae2676ca7690c8e8e10c73a4007e85d8f448d
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-07-22 12:55:05 +00:00
Alexander Volkov
ae51e360f9 xcb: Ignore disabling of outputs in the middle of the mode switch
X server may send RROutputChangeNotify event with null crtc and mode,
when it switches an output mode. Request RROutputInfo to distinguish
this case from the case when the output is explicitly disabled.

Change-Id: I4c2356ec71dbcc8013009ea8a6f46dd11f19d6bb
Task-number: QTBUG-44158
Task-number: QTBUG-46786
Task-number: QTBUG-46822
Reviewed-by: Daniel Vrátil <dvratil@redhat.com>
Reviewed-by: Gatis Paeglis <gatis.paeglis@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
2015-07-22 12:35:16 +00:00
Ralf Jung
b0b08cc0e4 When a screen comes back online, the windows need to be told about it
On my system, this fixes the misbehavior of Qt applications when the (only) active screen is
switched, e.g. from an external screen to the laptop.
This behavior is caused by the screen() of widgets to be set to NULL when their screen goes away.
When a new screen comes online, the widgets *should* be told about it, but they are not. The only
place that "maybeSetScreen" is called is when an existing screen changes its geometry, but not
when a screen gets enabled without its geometry being affected in any way (e.g. because it was
just disabled via xrandr, but has been connected all along). This makes sure that "maybeSetScreen"
is also called when a screen gets enabled.

Task-number: QTBUG-47041
Change-Id: Ic72d6beaa544bf9a4efdbea0830b1bc0d6ce5362
Reviewed-by: Dmitry Shachnev <mitya57@gmail.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>
2015-07-22 12:10:11 +00:00
Andrew Knight
eff4a29489 winrt: Fix build when INADDR_XXX macros are not defined
These macros are not defined unless a desktop or standalone SDK is
installed.

Change-Id: I4c600ddca5944cc5fde310e4fbe0866a7250d36b
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>
2015-07-22 06:44:00 +00:00
Friedemann Kleint
fa542b2ab6 Fix creation of QPlatformTheme on UNIX platforms.
On Ubuntu 14.04.1 LTS, a file /etc/profile.d/appmenu-qt5.sh appeared,
exporting QT_QPA_PLATFORMTHEME=appmenu-qt5 (application menu theme plugin).

This caused QGenericUnixTheme::createUnixTheme() to return an
instance of QGenericUnixTheme by theme name instead of the appropriate
QKdeTheme, QGnomeTheme.

Fix this by always appending the generic theme name to the list
of available themes and returning it only if the name matches.

Qt 5 applications will now appear correctly themed on Ubuntu,
including theme icons.

Change-Id: I68fcd80a620b74e2af73e938253dba9933816336
Reviewed-by: Paul Olav Tvete <paul.tvete@theqtcompany.com>
2015-07-22 04:14:03 +00:00
Friedemann Kleint
0e72782363 Port examples/widgets/dialogs to new connection syntax.
Change-Id: Ife8a24b43db400909099765b43f016b4be4bd6ef
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
2015-07-22 04:12:45 +00:00
Thiago Macieira
99e0fbbe1f Add the GPLv3 license text
LGPLv3 refers to it but does not include it in its body.

Change-Id: Ib056b47dde3341ef9a52ffff13eed18cf3504738
Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
2015-07-22 00:23:23 +00:00
Cesar Garcia Naranjo
5c67ce5d6d QTimeZone: Convert fractional timezones properly.
[ChangeLog][QtCore][QTimeZone] Fixed a wrong timezone conversion when
the POSIX timezone rule contains a fractional timezone (e.g. VET4:30).

Task-number: QTBUG-47037
Change-Id: I5d9052929bbcde174614ccf07c329264603e6431
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-07-21 22:50:39 +00:00
Thiago Macieira
9072edb5f7 Use jom instead of nmake to compile configure.exe
Change-Id: Ib463f09c2031e41515a7e3b1f9d1961712915413
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-07-21 22:50:30 +00:00
Thiago Macieira
e81b955b41 Doc: update the Q_OS_MAC documentation to be less misleading
The "open source" version it's talking about is that of Darwin, not of
Qt.

Change-Id: Ib306f8f647014b399b87ffff13f27bc651d78707
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Dirk Hohndel <dirk@hohndel.org>
2015-07-21 22:50:21 +00:00
Volker Krause
328199d52d Protect against a null widget pointer.
This fixes a crash when using the style for painting without a
corresponding widget.

Change-Id: I0742e4559ed7a78270dab3a1b0162c9617343053
Reviewed-by: André Klitzing <aklitzing@gmail.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-07-21 21:59:46 +00:00
Marc Mutz
852b1d7b9b QSharedPointer: make copy assignment from compatible shared pointer use copy-swap
... like all other assignment operators.

Removes the last user of internalCopy(). Removed.

Change-Id: I15f2cb3b7b26988dd3bc2f4475bc316480476993
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-07-21 21:10:43 +00:00
Friedemann Kleint
0e9b51ebac tst_qmimedatabase.cpp: Set write permission on files extracted from resources.
Set QFileDevice::WriteUser on all files extracted from resources. These
are read-only, which is preserved by QFile::copy(). This caused the
deletion of the temporary directory to fail on Windows.

Change-Id: Id99de9160471c38bcec68025c89cfabbe209bdbe
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: David Faure <david.faure@kdab.com>
2015-07-21 13:01:08 +00:00
Eskil Abrahamsen Blomfeldt
2978163759 Windows: Include DirectWrite support by default if available
This will automatically add DirectWrite support if the required
headers are found. The note about platform support from the help
screen has also been removed, since Windows XP is not officially
supported. Applications that need to run on XP can still build
with -no-directwrite.

Also changed the configure test to be a proper compile test, since
cross-compiled builds for Windows CE may break otherwise.

Change-Id: I7fc7bfb25f2f86ced8a4d4c78a69527de0273707
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Konstantin Ritt <ritt.ks@gmail.com>
2015-07-21 08:21:34 +00:00
Björn Breitmeyer
e5b8c38530 Fixing Wec2013 qmake support for VS2013 SDKs.
SDKs generated from VS2013 use a different folder for
build settings than those generated from VS2012.
Check both folders, before rejecting a potential
SDK.

Change-Id: I5bee5cc3771352adaab07d39ebbc350618f6c573
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
2015-07-21 07:53:35 +00:00
Bjoern Breitmeyer
d149b1c14e Wec2013 initial port.
Change-Id: Ib1dfdc5687e54daefd84982653967fe5eff8aab5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-07-21 07:53:25 +00:00
Sebastian Schuberth
b922e59cf7 qglobal: Clarify that Q_OS_WINRT also implies Q_OS_WIN
This makes the docs match the code from qsystemdetection.h.

Change-Id: Iec75e24d13e21f1800777bac5fa98b47b47e6001
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
2015-07-21 07:04:00 +00:00
Friedemann Kleint
f3e1dfb786 Windows: Fix handling of cursor flash time.
Check for special return value INFINITE (unsigned -1) of
GetCaretBlinkTime() (indicating cursor should not flash)
and return 0 in that case.

Change-Id: Iead41a20a68b79d04b03f77a3caf063d4e1d577e
Task-number: QTBUG-47208
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
2015-07-21 06:55:24 +00:00
Vincas Dargis
c963c514ac Qt Test: Fix QCOMPARE message for signed and unsigned char.
QCOMPARE did not print "Actual" and "Expected" values for quint8
and qint8 variables when they where not equal. QTest::toString<T>()
lacked specializations for signed and unsigned char types, that are
actually distinct types from char.

Change-Id: Iae789885c474c56441da45065992d7ccf1bc9f5c
Task-number: QTBUG-45238
Reviewed-by: Jason McDonald <macadder1@gmail.com>
2015-07-21 06:48:08 +00:00
Jian Liang
4f15449bc2 Windows: register alias for application font
Previously Qt didn't register an English name alias for application font
files under Windows. Suppose we add an application font file using
QFontDatabase::addApplicationFont(), the font family name returned by
QFontDatabase::applicationFontFamilies() then was the English name of the
font file, but the corresponding font family name returned by
QFontDatabase::families() was the localized version. This prevented us
from using the English font family to access the font since it was not
registered as alias.

Add an overload of populateFamily() which will register the English name
of the application font file as alias.

Task-number: QTBUG-47096
Change-Id: Idb89b7d8a419646c209426e826e7fd1ebee49662
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@theqtcompany.com>
2015-07-20 22:09:29 +00:00
Friedemann Kleint
bdbd26a3b7 Polish the widgets/mainwindows/mdi example.
- Introduce Qt 5 signals & slot syntax and remove the QSignalMapper
  used to map the triggered() signals of the per-MDI-child actions
  of the window menu to the activation slot by a functor to demonstrate
  the flexibility of the new connection syntax (the functor can
  in turn be replaced by a lambda expression once we have C++ 11).
- Merge MainWindow::createMenus()/createQToolBars()
  into MainWindow::createActions(), removing the need
  to store the actions as member variables.
  Use QMenu::addAction() for brevity.
- Use QIcon::fromTheme() to obtain system icons and use
  resource icons as fallback.
- Rewrite settings code to use
  QWidget::saveGeometry(), Widget::restoreGeometry() since
  saving size and position does not work well with multiple
  screens. Query the available size when determining
  the initial size instead of using hard-coded values
  for High-DPI screens.
- Fix minor issues in code, use multi-argument version
  of QString::arg(), QDir::toNativeSeparators() to
  present file paths to the user and static method invocation.

Change-Id: I3d5078ddbe3cb4eba65e188430ba3580cecb2c79
Reviewed-by: Olivier Goffart (Woboq GmbH) <ogoffart@woboq.com>
2015-07-20 22:07:13 +00:00
Thiago Macieira
c4a97def7b Update/fix the qmake support for yacc
yacc.prf was mostly working, so this commit simply makes it slightly
better by using the -p and -b options that POSIX requires and avoid
having a common intermediate file.

Change-Id: Ib306f8f647014b399b87ffff13f1e8e74ad4db1d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-07-20 16:09:11 +00:00
Thiago Macieira
6636320867 Makes sure that yacc works with the MSYS bison on Windows.
Most people's yacc are actually a symlink to bison. On Windows, where
symlinks don't usually exist, we can use bison -y.

This was tested with MSYS Bison.

Change-Id: I913745d48af30f9ef7b846b6438500261dd6022d
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-07-20 16:09:07 +00:00
Thiago Macieira
db2fc7843c QProcess: make setWorkingDirectory stop launch if the dir doesn't exist
[ChangeLog][QtCore][QProcess] Fixed a bug that caused QProcess to launch
a child process on Unix even if the directory specified with
setWorkingDirectory did not exist.

Task-number: QTBUG-47271
Change-Id: Ib306f8f647014b399b87ffff13f195158b0e52f5
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
2015-07-20 16:07:46 +00:00
Ulf Hermann
ee0fd87007 Selectively update library paths when creating QCoreApplication
We force a recreation of the library paths with added information on
construction of QCoreApplication. This way we can find plugins in
the application directory which only becomes known when
QCoreApplication is created. When the user changes the library path
we create a new list of the manually modified library paths and
recalculate it from the delta of original vs. modified paths when
QCoreApplication is created.

The upsides of this approach vs. keeping an explicit delta are:

* We don't need to introduce a separate data structure to hold
  the added/removed status for delta items or the information that
  the whole list got replaced.

* The lists never get larger than the the real library paths. An
  explicit delta would have to record all modifications.

* I don't think the delta replay algorithm we would have to do
  anyway could be made much more compact than the one this change
  introduces.

Of course, if the user actually changes anything, the list is
duplicated. Considering that this is a rarely used function and
that we would have to save some extra information anyway, I think
we can live with this.

Task-number: QTBUG-38598
Change-Id: I3bfbbd1be62dd5804dcc7ac808b053428a4e3149
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-07-20 15:57:07 +00:00