* Source incompatible changes *
****************************************************************************
+- QAtomicInt's and QAtomicPointer's non-atomic convenience methods
+ (i.e., operator=, operator int / operator T*, operator!, operator==,
+ operator!= and operator->) have been removed as they did implicit
+ loads and stores of unspecified memory ordering. Code dealing with
+ is expected to use load(), loadAquire(), store() and storeRelease()
+ as necessary instead.
+
+- QObject
+ * The signatures of the connectNotify() and disconnectNotify() functions
+ have changed. The functions now get passed a QMetaMethod that identifies
+ the signal, rather than a const char *.
- QSslCertificate::subjectInfo() and QSslCertificate::issuerInfo() now
return a QStringList instead of a QString
- QCoreApplication::translate() will no longer return the source text when
the translation is empty. Use lrelease -removeidentical for optimization.
+- QTranslator subclasses need to adjust the signature of the virtual method
+ translate() in order to add the "int n = -1" argument.
+
+- QString and QByteArray constructors that take a size argument will now treat
+ negative sizes to indicate nul-terminated strings (a nul-terminated array of
+ QChar, in the case of QString). In Qt 4, negative sizes were ignored and
+ result in empty QString and QByteArray, respectively. The size argument to
+ those constructors now has a default value of -1, thus replacing the separate
+ constructors that did the same.
+
- Qt::escape() is deprecated (but can be enabled via
QT_DISABLE_DEPRECATED_BEFORE), use QString::toHtmlEscaped() instead.
in Qt4, so these methods return a bool now. If your code used the undocumented
QBool, simply replace it with bool.
+- The old macros TRUE and FALSE have been removed, use true and false instead.
+
- qIsDetached<> has been removed without replacement.
+- The return type of QFlags<Enum>::operator int() now matches the Enum's underlying
+ type in signedness instead of always being 'int'. This was done in order to allow
+ QFlags over enums whose underlying type is unsigned (Qt::MouseButton is one such
+ enum).
+
- QMetaType:
* QMetaType::construct() has been renamed to QMetaType::create().
* QMetaType::unregisterType() has been removed.
+ * QMetaType now records if the type argument inherits QObject. This
+ can be used in scripting APIs, so that custom QObject subclasses
+ are treated as QObject pointers. In QtScript for example, this can
+ mean that QScriptValue.isQObject can be true where it was false before.
+ * QMetaType::QWidgetStar has been removed. Use qMetaTypeId<QWidget*>()
+ or QVariant::canConvert<QWidget*>() as appropriate.
+
+- QMetaMethod:
+ * QMetaMethod::signature() has been renamed to QMetaMethod::methodSignature(),
+ and the return type has been changed to QByteArray. This was done to be able
+ to generate the signature string on demand, rather than always storing it in
+ the meta-data.
+ * QMetaMethod::typeName() no longer returns an empty string when the return
+ type is void; it returns "void". The recommended way of checking whether a
+ method returns void is to compare the return value of QMetaMethod::returnType()
+ to QMetaType::Void.
+
+- QVariant:
+ * Inconsistent constructor taking Qt::GlobalColor and producing QVariant(QColor)
+ instance was removed. Code constructing such variants can be migrated by
+ explicitly calling QColor constructor. For example from "QVariant(Qt::red)"
+ to "QVariant(QColor(Qt::red))"
+ * Similarly, implicit creation of QVariants from enum values Qt::BrushStyle,
+ Qt::PenStyle, and Qt::CursorShape have been removed. Create objects explicitly
+ or use static_cast<int>(Qt::SolidLine) to create a QVariant of type int with
+ the same value as the enum.
+
+- QLocale:
+ * The historical language and country names were updated to their modern values,
+ some deprecated names were dropped or mapped to their modern alternatives.
- QTestLib:
* The plain-text, xml and lightxml test output formats have been changed to
like SkipSingle -- skipping a non-data-driven test function or skipping
only the current data row of a data-driven test function. Every skipped
data row is now reported in the test log.
+ * The qCompare() function template was both overloaded and specialised, which
+ made it almost impossible to specialise the correct primary template and
+ could lead to indecipherable error messages or surprising overload resolution
+ (such as going via qCompare(QFlags<void*>,int) to satisfy a request for
+ qCompare<void*>()). Now, specialisation has been replaced by overloading.
+ As a consquence, code such as qCompare<QString>(l, r) will no longer use the
+ QString-specific implementation and may fail to compile. We recommend you
+ replace specialisations with overloading, too. Also, don't pass explicit
+ template arguments to qCompare (e.g. qCompare<QString>(l, r)), but let
+ overload resolution pick the correct one, and cast arguments in case of
+ ambiguous overloads (e.g. qCompare(QString(l), r)). The resulting code will
+ continue to work against older QtTestlib versions.
- The QSsl::TlsV1 enum value was renamed to QSsl::TlsV1_0 .
* Q_DECLARE_METATYPE(Foo*) now requires that Foo is fully defined. In
cases where a forward declared type should be used as a metatype,
Q_DECLARE_OPAQUE_POINTER(Foo*) can be used to allow that.
+ * Similarly, Q_DECLARE_METATYPE(QSharedPointer<Foo>), and
+ Q_DECLARE_METATYPE(QWeakPointer<Foo>) require Foo to be fully defined. Again
+ though, Q_DECLARE_OPAQUE_POINTER(Foo*) can be used to allow that.
- QItemEditorFactory
* The signature of the createEditor and valuePropertyName methods
have been changed to take arguments of type int instead of QVariant::Type.
+- QModelIndex/QAbstractItemModel
+
+ * The integer value that can be stored in a QModelIndex is now of type
+ quintptr to match the size of the internal storage location.
+ * The createIndex() method now only provides the void* and quintptr
+ overloads, making calls with a literal 0 (createIndex(row, col, 0))
+ ambiguous. Either cast (quintptr(0)) or omit the third argument
+ (to get the void* overload).
+
- QWindowSystemInterface:
* The signature of all handleTouchEvent() variants have changed,
- The QHttp, QHttpHeader, QHttpResponseHeader and QHttpRequestHeader classes have
been removed, QNetworkAccessManager should be used instead.
-- The QFtp class is no longer exported, QNetworkAccessManager should be used
- instead.
+- The QFtp and QUrlInfo classes are no longer exported, QNetworkAccessManager should be used
+ instead. These classes are available in a separate module, qtftp.
- QProcess
the raw values are available as QT_INSTALL_.../raw and the sysroot as QT_SYSROOT.
The new QT_HOST_... properties can be used to refer to the Qt host tools.
* Several functions and built-in variables were modified to return normalized paths.
+ * The -(no-)exception flags in configure have been removed. Qt modules are now compiled
+ without exceptions by default, as they do not use them and can neither handle them
+ properly. Qt Core still has exceptions enabled to correctly throw bad_alloc exceptions
+ in our tool classes.
+ Whether code should be compiled with exception support enabled or disabled can be
+ controlled by a CONFIG += exceptions/exceptions_off setting in the .pro file.
- QTextCodecPlugin has been removed since it is no longer used. All text codecs
are now built into QtCore.
- QSystemLocale has been removed from the public API.
-- QSqlQueryModel::indexInQuery() is now virtual. See note below under QSql.
+- QSqlQueryModel::indexInQuery() is now virtual. See note below under QtSql.
+
+- QSqlDriver::subscribeToNotification, unsubscribeFromNotification,
+ subscribedToNotifications, isIdentifierEscaped, and stripDelimiters
+ are now virtual. See note below under QtSql.
- qMacVersion() has been removed. Use QSysInfo::macVersion() or
QSysInfo::MacintoshVersion instead.
+- QColorDialog::customColor() now returns a QColor value instead of QRgb.
+ QColorDialog::setCustomColor() and QColorDialog::setStandardColor() now
+ take a QColor value for their second parameter instead of QRgb.
+
+- QPageSetupDialog has had the PageSetupDialogOption enum and the api to
+ set and get the enum removed as none of the Options are used any more.
+
+- QAbstractPageSetupDialog has been removed.
+
+- QThread::terminated() has been removed, since its emission cannot be guaranteed.
+
+- QPrintEngine - Removed the PPK_SuppressSystemPrintStatus key as no longer used.
+
+- QCoreApplication::Type and QApplication::type() have been removed. These
+ Qt3 legacy application types did not match the application types
+ available in Qt5. Use for example qobject_cast instead to dynamically
+ find out the exact application type.
+
+- The following QStyle implementations have been made internal:
+ * QFusionStyle
+ * QGtkStyle
+ * QMacStyle
+ * QWindowsCEStyle
+ * QWindowsMobileStyle
+ * QWindowsStyle
+ * QWindowsVistaStyle
+ * QWindowsXPStyle
+ Instead of creating instances or inheriting these classes directly, use:
+ * QStyleFactory for creating instances of specific styles
+ * QProxyStyle for customizing existing style implementations
+ * QCommonStyle as a base for implementing full custom styles.
+
****************************************************************************
* General *
****************************************************************************
more closely match the directory structure of the code under test.
Integration tests have been moved to tests/auto/integrationtests.
+- Qt is compiled with C++11 support enabled by default, provided the compiler
+ supports C++11. Qmake based projects can enable C++11 support explicitly
+ using 'CONFIG+=c++11' in their .pro files. To enable it conditionally, use
+ 'contains(QT_CONFIG,c++11):CONFIG+=c++11'. This will enable C++11 support
+ only if Qt was built with C++11 support.
+
+- The Unicode Data and Algorithms has been updated to match the
+ Unicode Standard of version 6.2. For more information see http://www.unicode.org/
+
+- The QLocale data has been updated to CLDR 22.1.
+ For more information see http://cldr.unicode.org/
+
Third party components
----------------------
--
+- SQLITE_ENABLE_FTS3,SQLITE_ENABLE_FTS3_PARENTHESIS and SQLITE_ENABLE_RTREE
+flags are now enabled by default on all platforms, for the sqlite3 copy under
+the 3rdparty directory.
+
+Legal
+-----
+ - Copyright of Qt has been transferred to Digia Plc.
****************************************************************************
* Library *
QtCore
------
-* drop a bogus QChar::NoCategory enum value; the proper QChar::Other_NotAssigned
+* [QTBUG-12144], [QTBUG-18360] The QChar methods are now able to handle the full range
+ of Unicode codepoints defined by the Unicode Standard of version 6.2.
+ QChar::isPrint() will no longer return a false positives for
+ the Unicode format characters, surrogates, and private use characters.
+
+* Drop a bogus QChar::NoCategory enum value; the proper QChar::Other_NotAssigned
value is returned for an unassigned codepoints now.
* layoutAboutToBeChanged is no longer emitted by QAbstractItemModel::beginMoveRows.
should now also connect to (and disconnect from) the rowsAboutToBeMoved and
rowsMoved signals.
+* The QAbstractItemModel::sibling method was made virtual, allowing implementations
+ to optimize based on internal data.
+
* The default value of the property QSortFilterProxyModel::dynamicSortFilter was
changed from false to true.
libraries, creating uncertainty/bugs in using QString easily, and (to a lesser
extent) performance issues.
-* QTextCodec::codecForTr() and QTextCodec::setCodecForTr() have been removed,
- QCoreApplication::Encoding value CodecForTr is now obsolete, use
- DefaultCodec instead. For reasoning, see the codecForCStrings() removal above.
+* QTextCodec::codecForTr() and QTextCodec::setCodecForTr() have been removed.
+ QObject::trUtf8 and QCoreApplication::Encoding enum are now obsolete. Qt assumes
+ that the source code is encoded in UTF-8.
+
+* QFile::setEncodingFunction and QFile::setDecodingFunction are obsolete and do
+ nothing in Qt 5. The QFile::encodeName and QFile::decodeName functions are now
+ hardcoded to operate on QString::fromLocal8Bit and QString::toLocal8Bit
+ only. Therefore, it's still possible to obtain the old behaviour by calling
+ QTextCodec::setCodecForLocale. However, that is not recommended: new code
+ should not make assumptions about the filesystem encoding and older code should
+ have those assumptions removed.
* QIntValidator and QDoubleValidator no longer fall back to using the C locale if
the requested locale fails to validate the input.
* QEvent::AccessibilityPrepare, AccessibilityHelp and AccessibilityDescription removed:
* The enum values simply didn't make sense in the first place and should simply be dropped.
+* Filtering of native events (QCoreApplication::setEventFilter, as well as
+ QApplication::x11EventFilter/macEventFilter/qwsEventFilter/winEventFilter) have been replaced
+ with QCoreApplication::installNativeEventFilter and removeNativeEventFilter,
+ for an API much closer to QEvent filtering. Note that the native events that can be
+ filtered this way depend on which QPA backend is chosen, at runtime. On X11, XEvents are
+ not used anymore, and have been replaced with xcb_generic_event_t due to the switch to
+ XCB, which requires porting the application code to XCB as well.
+
+* [QTBUG-23529] QHash is now more resilient to a family of denial of service
+ attacks exploiting algorithmic complexity, by supporting two-arguments overloads
+ of the qHash() hashing function.
+
+* [QTBUG-4844] QObject::disconnectNotify() is now called when a receiver is destroyed.
+
+* QStateMachine
+ - [QTBUG-15430] Added a QStateMachine constructor that takes a ChildMode parameter.
+ - [QTBUG-17975] Delayed event posting now works from secondary threads.
+ - [QTBUG-19789] Signal transitions now work correctly when the sender is in a different thread.
+ - [QTBUG-20362] Property assignments now work as expected with nested, parallel states.
+ - [QTBUG-22931] The root state can now be a parallel state group.
+ - [QTBUG-24307] The initial state is now entered before the started() signal is emitted.
+ - [QTBUG-25959] State entry and exit order is now SCXML spec-compliant.
+
+* qDebug(), qWarning(), qCritical(), and qFatal() were changed to macros that track the origin
+ of the message in source code. Whether this and other meta-information is printed can be
+ configured (for the default message handler) by setting the new QT_MESSAGE_PATTERN environment
+ variable. qInstallMsgHandler() has been deprecated, and should be replaced with
+ qInstallMessageHandler().
+
+* QTextBoundaryFinder
+ - [QTBUG-6498] The word start and word end boundaries detection is now
+ unaware of surrounding white space characters.
+ - SoftHyphen enum value has been added to specify a line break opportunity
+ at a soft hyphen (SHY) character.
+ - MandatoryBreak enum value has been added to specify a mandatory (aka "hard") line breaks.
+ - Source-incompatible change: Since the behavior of boundaryReasons() method
+ has been changed a lot, StartWord/EndWord enum values were intentionally replaced
+ with StartOfItem/EndOfItem ones to force the affected code be revised.
+
+* Softkeys API was removed. The following functions and enums were removed:
+ - QAction::setSoftKeyRole()
+ - QAction::softKeyRole()
+ - QAction::SoftKeyRole
+ - Qt::WA_MergeSoftkeys
+ - Qt::WA_MergeSoftkeysRecursively
+ - Qt::WindowSoftkeysVisibleHint
+ - Qt::WindowSoftkeysRespondHint
+
+* QLocale
+ - [QTBUG-27987] Constructing a QLocale object with the short locale id has been improved.
+
+* QObject
+ - Added overloads of connect() to connect using pointers to member function
+ - Added QObject::isSignalConnected()
+
QtGui
-----
* Accessibility has been refactored. The hierachy of accessible objects is implemented via
information like capability flags, point-specific flags, velocity,
and raw positions.
+* A new set of enabler classes have been added, most importantly QWindow, QScreen,
+ QSurfaceFormat, and QOpenGLContext.
+
+* Most of the useful QtOpenGL classes have been polished and moved into
+ QtGui. See QOpenGLFramebufferObject, QOpenGLShaderProgram,
+ QOpenGLFunctions, etc.
+
+* QOpenGLPaintDevice has been added to be able to use QPainter to render into
+ the currently bound context.
+
+* Behavioral change in QImage::fill() on an image with format Format_RGB888:
+ For consistency with RGB32 and other 32-bit formats, function now expects
+ image data in RGB layout as opposed to BGR layout.
+
+* Behavioral change in QImage and QPixmap load()/loadFromData() on a non-null image:
+ If load() or loadFromData() fails to load the image (returns false) then
+ the existent image data will be invalidated, so that isNull() is guaranteed
+ to return true in this case.
+
+* Behavioral change regarding QPainter fill rules when not using antialiased
+ painting: The fill rules have changed so that the aliased and antialiased
+ coordinate systems match. Earlier there used to be an offset of slightly less
+ than half a pixel when doing sub-pixel rendering, in order to be consistent
+ with the old X11 paint engine. The new behavior should be more predictable and
+ gives the same consistent rounding for images / pixmaps as for paths and
+ rectangle filling. It's possible to still get the old behavior by setting the
+ QPainter::Qt4CompatiblePainting render hint.
+
+* Behavioral change regarding QPen: The default QPen constructors now create a
+ 1-width non-cosmetic pen as opposed to a 0-width cosmetic pen. The old
+ behavior can be emulated by setting the QPainter::Qt4CompatiblePainting
+ render hint when painting.
+
QtWidgets
---------
+* A new style QFusionStyle has been introduced, while QPlastiqueStyle, QCleanlooksStyle,
+ QCDEStyle and QMotifStyle have been removed. The older styles will be
+ made available to applications as a standalone source package.
+
* QInputContext removed as well as related getters and setters on QWidget and QApplication.
Input contexts are now platform specific.
* QInputDialog::getInteger() has been obsoleted. Use QInputDialog::getInt() instead.
+* In Qt 4, QStyle::standardIconImplementation() and layoutSpacingImplementation()
+ were introduced instead of making the corresponding methods virtual due to binary
+ compatibility reasons. QStyle::standardIcon() and layoutSpacing() have been made
+ (pure) virtual in Qt 5.
+
* In Qt 4, many QStyleOption subclasses were introduced in order to keep
binary compatibility -- QStyleOption was designed to be extended this way,
in fact it embeds a version number. In Qt 5 the various QStyleOption*V{2,3,4}
the proper Qt API: due to the version bump, QStyle will try to use the additional
QStyleOption members, which are left default-initialized.
-* QHeaderView - The following functions have been obsoleted.
+* QHeaderView has been refactored and the following functions have been obsoleted:
* void setMovable(bool movable) - use void setSectionsMovable(bool movable) instead.
* ResizeMode resizeMode(int logicalindex) const -
use sectionResizeMode(int logicalindex) instead.
+ * setSortIndicator will no longer emit sortIndicatorChanged when the sort indicator is unchanged.
+
+* QDateEdit and QTimeEdit have re-gained a USER property. These were originally removed
+ before Qt 4.7.0, and are re-added for 5.0. This means that the userProperty for
+ those classes are now QDate and QTime respectively, not QDateTime as they have been
+ for the 4.7 and 4.8 releases.
+
+* QGraphicsItem and derived classes - Passing a QGraphicsScene in the items constructor
+ is no longer supported. Construct the item without a scene and then call
+ QGraphicsScene::addItem() to add the item to the scene.
+
+* QAbstractItemView and derived classes only emit the clicked() signal on left click now,
+ instead of on all mouse clicks.
+
+* QProxyModel has been removed. It is deprecated since early Qt 4 versions and replaced
+ by QAbstractProxyModel and related classes. A copy of QProxyModel is available
+ in the UiHelpers library.
+
+* The virtual methods QApplication::commitData and QApplication::saveState, used for session
+ management, no longer exist.
+ Connect to the commitDataRequest and saveStateRequest signals instead.
+ The new isSessionSaving() method can be used in the cases where the closeEvent of your
+ window needs to know whether it is being called during shutdown.
+
+* [QTBUG-20503] QFileSystemModel no longer masks out write permissions from the permissions
+ returned from permissions() or data(FilePermissions), even if in read-only mode
+ (QFileSystemModel::isReadOnly()).
+
+* [QTBUG-158 QTBUG-428 QTBUG-26501] QComboBox::currentText improvements
+ Restored currentText as USER property.
+ New setter setCurrentText(), marked as WRITE method, usable by QItemDelegate and QDataWidgetMapper.
+ New signal currentTextChanged() marked as NOTIFY method.
+
QtNetwork
---------
* QHostAddress::isLoopback() API added. Returns true if the address is
* The openssl network backend now reads the ssl configuration file allowing
the use of openssl engines.
+QtDBus
+------
+* QtDBus now generates property annotations for the Qt type names
+ in the org.qtproject.QtDBus namespace. When parsing such annotations
+ both the old and new namespaces are accepted.
+
+* QtDBus error codes have been updated to be on the org.qtproject.QtDBus.Error
+ namespace.
+
+QtConcurrent
+------------
+
+* QtConcurrent is no longer in QtCore, but forms its own library now.
+ QMake-based projects can use
+ QT += concurrent
+ to include the new library.
+
+* QtConcurrent::Exception has been renamed to QException, and is still in QtCore.
+ Ditto QtConcurrent::UnhandledException.
QtOpenGL
--------
+* Most of the classes in this module (with the notable exception of QGLWidget)
+ now have equivalents in QtGui, along with the naming change QGL -> QOpenGL.
+ The classes in QtOpenGL that have equivalents in QtGui can now be considered
+ deprecated.
+* QGLPixelBuffer is now deprecated and implemented in terms of a hidden
+ QGLWidget and a QOpenGLFramebufferObject. It is recommended that applications
+ using QGLPixelBuffer for offscreen rendering to a texture switch to using
+ QOpenGLFramebufferObject directly instead, for improved performance.
+* The default major version of QGLFormat has been changed to 2 to be aligned
+ with QSurfaceFormat. Applications that want to use a different version should
+ explicitly request it using QGLFormat::setVersion().
+* void QGLContext::generateFontDisplayLists(const QFont& font, int listBase)
+ and int QGLWidget::fontDisplayListBase(const QFont & fnt, int listBase)
+ which were deprecated in Qt 4 have been removed.
+* Previously deprecated default value listBase parameter has been removed from
+ both QGLWidget::renderText() functions.
+* In order to ensure support on more platforms, stricter requirements have been
+ introduced for doing threaded OpenGL. First, you must call makeCurrent() at
+ least once per swapBuffers() call, so that the platform has a chance to
+ synchronize resizes to the OpenGL surface. Second, before doing makeCurrent()
+ or swapBuffers() in a separate thread, you must call
+ QGLContext::moveToThread(QThread *) to explicitly let Qt know in which thread
+ a QGLContext is currently being used. You also need to make sure that the
+ context is not current in the current thread before moving it to a different
+ thread.
+
QtScript
--------
-
+* [QTBUG-2124] Added default conversion for long and unsigned long.
+* [QTBUG-6133] Fixed QScriptContextInfo::functionMetaIndex() for overloaded
+ slots.
+* [QTBUG-15213] Doc: Added missing properties to the ECMAScript reference.
+* [QTBUG-15956] Doc: Removed wrong information about Error .stack properties.
+* [QTBUG-17915] Fixed a crash when a JS property descriptor was only partially
+ defined.
+* [QTBUG-18188] Fixed a regression that caused contexts created by
+ QScriptEngine::pushContext() to inherit the parent context's scope.
+* [QTBUG-18201] Suppressed 'LEAK' messages on stderr at application exit.
+* [QTBUG-20378] Fixed QtScriptTools compilation when some features are disabled.
+* [QTBUG-20845] Fixed a precision bug in the calculator example.
+* [QTBUG-21548] Fixed a crash in QScriptEngineDebugger when the QScriptEngine
+ being debugged was deleted.
+* [QTBUG-21760] Fixed a crash when accessing QObject properties through an
+ activation object.
+* [QTBUG-21896] Fixed a crash when converting an invalid JS value to a string.
+* [QTBUG-21993] Fixed a bug that caused QObject wrapper objects created with
+ the PreferExistingWrapperObject option to not be garbage collected, even if
+ the object was not referenced anywhere in the scripting environment.
+* [QTBUG-22152] Fixed build issue on Solaris.
+* [QTBUG-23871] Fixed a JIT crash on x86-64 caused by out-of-range branch
+ instructions.
+* [QTBUG-26261] Fixed a crash when a queued signal handler no longer existed.
+* [QTBUG-26590] Fixed a bug that caused QObjects with script connections to
+ not be garbage collected as expected.
QTestLib
--------
* [QTBUG-20615] Autotests can now log test output to multiple destinations
and log formats simultaneously.
+* [QTBUG-21645] QSignalSpy now handles QVariant signal parameters more
+ intuitively; the QVariant value is copied directly, instead of being
+ wrapped inside a new QVariant. This means that calling
+ qvariant_cast<QVariant>() on the QSignalSpy item (to "unwrap" the value)
+ is no longer required (but still works).
QtSql
-----
-QSqlTableModel/QSqlRelationalTableModel
+QSqlQueryModel/QSqlTableModel/QSqlRelationalTableModel
* The dataChanged() signal is now emitted for changes made to an inserted
record that has not yet been committed. Previously, dataChanged() was
before doing anything. Previously, it would remove what it could and
ignore the rest of the range.
+* removeRows(), for OnFieldChange and OnRowChange, allows only 1 row to be
+removed and only if there are no other changed rows.
+
* setRecord() and insertRecord()
- -Only use fields where generated flag is set to true. This is
- is consistent with the meaning of the flag.
+ -The generated flags from the source record are preserved in the model
+ and determine which fields are included when changes are applied to
+ the database.
-Require all fields to map correctly. Previously fields that didn't
map were simply ignored.
-For OnManualSubmit, insertRecord() no longer leaves behind an empty
QSqlTableModel::indexInQuery() as example of how to implement in a
subclass.
-* QSqlTableModel::selectRow(): This is a new method that refreshes a single
+* QSqlQueryMode::setQuery() emits fewer signals. The modelAboutToBeReset()
+and modelReset() signals suffice to inform views that they must reinterrogate
+the model.
+
+* QSqlTableModel::select() is now a slot.
+
+* QSqlTableModel::selectRow(): This is a new slot that refreshes a single
row in the model from the database.
* QSqlTableModel edit strategies OnFieldChange/OnRowChange QTBUG-2875
that fail upon resubmitting for edit strategies OnFieldChange and OnRowChange.
Instead, pending (failed) changes cause new changes inappropriate to the
edit strategy to be refused. The application should resolve or revert pending
-changes.
+changes. insertRows() and insertRecord() also respect the edit strategy.
+
+* QSqlTableModel::setData() and setRecord() in OnRowChange no longer have the
+side effect of submitting the cached row when invoked on a different row.
+
+* QSqlDriver::subscribeToNotification, unsubscribeFromNotification,
+subscribedToNotifications, isIdentifierEscaped, and stripDelimiters
+are now virtual. Their xxxImplemenation counterparts have been removed
+now that QSqlDriver subclasses can reimplement these directly.
****************************************************************************
* Database Drivers *
****************************************************************************
+sqlite
+------
+* QVariant::Bool type now mapped to integers 0/1 in SQL instead of strings
+'true' and 'false'. Sqlite does not have a boolean column type and it is
+customary to use integer. QTBUG-23895
+
+postgres
+--------
+* the error message returned in QSqlError::text() has the SQLSTATE error code
+appended in parantheses.
****************************************************************************
* Platform Specific Changes *
Qt for Windows
--------------
* Accessibility framework uses IAccessible2
-
+* ANGLE can be used to provide Open GL ES 2.0 (see http://code.google.com/p/angleproject/)
Qt for Mac OS X
---------------
* [QTBUG-20785] The moc now has a -b<file> option to #include an additional
file at the beginning of the generated file.
-
+* moc is now able to fully understand and expands preprocessor macros.
- uic
- configure
+ * The Mac OS X -dwarf2 configure argument has been removed. DWARF2 is always
+ used on Mac OS X now.
- qtconfig
* Plugins *
****************************************************************************
- The text codecs that were previously plugins are now built into QtCore.
+- Code using Q_EXPORT_PLUGIN macros will no longer compile. Use
+ Q_PLUGIN_METADATA instead. Note that this requires that the class
+ be default-constructible.
****************************************************************************
* Important Behavior Changes *
- QPointer
- * QPointer itself is now deprecated, and the implementation of QPointer
- has been changed to use QWeakPointer. The old guard mechanism has been
- removed. This causes two slight changes in behavior when using
- QPointer:
+ * The implementation of QPointer has been changed to use QWeakPointer. The
+ old guard mechanism has been removed. This causes a slight change
+ in behavior when using QPointer:
* When using QPointer on a QWidget (or a subclass of QWidget), previously
the QPointer would be cleared by the QWidget destructor. Now, the QPointer
cleared). Any QPointers tracking a widget will NOT be cleared before the
QWidget destructor destroys the children for the widget being tracked.
- * When constructing a QSharedPointer to take ownership of an object after a
- QPointer is already tracking the object. Previously, the shared pointer
- construction would not be affected by the QPointer, but now that QPointer
- is implemented using QWeakPoiner, constructing the QSharedPointer will
- cause an abort().
+- QUrl
+
+ * QUrl has been changed to operate only on percent-encoded
+ forms. Fully-decoded forms, where the percent character stands for itself,
+ are no longer possible. For that reason, the getters and setters with
+ "encoded" in the name are deprecated, except for QUrl::toEncoded() and
+ QUrl::fromEncoded().
+
+ QUrl now operates in a mode where it decodes as much as it can of the
+ percent-encoding sequences. In addition, the setter methods possess a mode
+ in which a '%' character not part of a percent-encoding sequence will cause
+ the parser to correct the input. Therefore, most software will not require
+ changes to adapt, since the getter methods will continue returning the
+ components in their most-decoded form as they did before and the setter
+ methods will accept input as they did before..
+ The most notable difference is when dealing with
+ QUrl::toString(). Previously, this function would return percent characters
+ in the URL by themselves. Now, it will return "%25", like
+ QUrl::toEncoded().
- QVariant
QMetaType::User, which means that it points to the first registered custom
type, instead of a nonexistent type.
+- QMetaType
+
+ * Interpretation of QMetaType::Void was changed. Before, in some cases
+ it was returned as an invalid type id, but sometimes it was used as a valid
+ type (C++ "void"). In Qt5, new QMetaType::UnknownType was introduced to
+ distinguish between these two. QMetaType::UnknownType is an invalid type id
+ signaling that a type is unknown to QMetaType, and QMetaType::Void
+ is a valid type id of C++ void type. The difference will be visible for
+ example in call to QMetaType::typeName(), this function will return null for
+ QMetaType::UnknownType and a pointer to "void" string for
+ QMetaType::Void.
+ Please, notice that QMetaType::UnknownType has value 0, which previously was
+ reserved for QMetaType::Void.
+
- QMessageBox
projects / profile / ivi / qtbase.git / blobdiff