Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
413 lines
20 KiB
Plaintext
413 lines
20 KiB
Plaintext
Qt 4.8 introduces many new features and improvements as well as bugfixes
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over the 4.7.x series. For more details, refer to the online documentation
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included in this distribution. The documentation is also available online:
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http://qt.nokia.com/doc/4.8
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The Qt version 4.8 series is binary compatible with the 4.7.x series.
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Applications compiled for 4.7 will continue to run with 4.8.
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Some of the changes listed in this file include issue tracking numbers
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corresponding to tasks in the Qt Bug Tracker:
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http://bugreports.qt.nokia.com/
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Each of these identifiers can be entered in the bug tracker to obtain more
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information about a particular change.
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****************************************************************************
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* General *
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****************************************************************************
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Qt Platform Abstraction
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-----------------------
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Qt 4.8 adds a new platform: QPA (also known as Lighthouse). QPA is a replacement
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for Qt for Embedded Linux (QWS), making it much easier to port Qt to new platforms.
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General Improvements
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--------------------
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-
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Third party components
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----------------------
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- Updated libpng to version 1.5.4
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- Updated libjpeg to version 8c
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- Updated zlib to version 1.2.5
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****************************************************************************
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* Library *
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****************************************************************************
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QtCore
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------
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- Removed support for QT_NO_THREAD define for QHostInfo.
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- Optimized plugin loading on ELF platforms.
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Print failure reason at runtime with QT_DEBUG_PLUGINS=1 in environment.
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- QMutexLocker: improved performence of the non contended case by inlining some function
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- QThreadStorage: Added possibility to store object by value instead of by pointer [QTBUG-15033]
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- QThread: fixed few race conditions [QTBUG-17257, QTBUG-15030]
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- QtConcurrent: Entry points were re-written and interfaces changed. This work was
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done in order to add support for QtConcurrent on Symbian, but ultimately it was noted
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that the changes lead to a leaner API and the change applies to all platforms.
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- QtConcurrent: added support for c++0x lambda in few functions
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- QObject: Improved performence of the signal activation
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- QObject: added ways to connect signals using QMetaMethod
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- QObject: added senderSignalIndex method to discover the signal that invoked a slot
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- QObject: deprecated qFindChild and qFindChildren
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- QObject: optimize constructions and destruction of objects
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- QObject: Qt::BlockingQueuedConnection can handle the return value [QTBUG-10440]
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- QList/QVector/QStringList: added C++0x initilizer lists constructors.
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- QList: optimizations
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- QVarLenghtArray: added method for consistency with QVector
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- QStringBuilder: added support for QByteArray
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- qSwap now uses std::swap, specialized std::swap for our container to work better with stl algoritms
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- Added member-swap function to containers and implicitly shared (including GUI) classes
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- QVariant: deprecated global function qVariantSetValue, qVariantValue, qVariantCanConvert, qVariantFromValue
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- QUrl: add method for retrieving effective top level domain [QTBUG-13601] (MR-1205)
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- optimised performance of QFileInfo, QDir, QDirIterator, these classes now share metadata and access the filesystem less
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- QFile: new open() overloads allow control over whether QFile should close an adopted file handle or not
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- Fix QProcess emitting two started signals on X11 [QTBUG-7039]
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- QLocale: added locale dependent to{Upper,Lower} string conversions
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- QUuid: Optimize QUuid::toString() and relevant, circa 20 times faster than before on the test machine. [QTBUG-19418]
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- QUuid: Add QUuid::toByteArray() and relevant, same behavior with QUuid::toString(). [QTBUG-19419]
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- QUuid: Add QUuid::toRfc4122() and fromRfc4122(), provide interfaces by following the RFC-4122 [QTBUG-19420]
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- QTextStream, QDataStream and QXmlStreamWriter: added write error reporting [QTBUG-376]
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- QProcessEnvironment: added keys() and insert(const QProcessEnvironment &)
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- QProcessEnvironment: preserve variable name case on Windows
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- QProcessEnvironment: made systemEnvironment() encoding-safe
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- QProcessEnvironment: major optimizations, especially on Unix
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- Add branch prediction macros Q_LIKELY and Q_UNLIKELY
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- QSettings: don't assume XDG_CONFIG_HOME is latin1-encoded
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- QDateTime: Fix generation of ISO8601 strings to include proper timezone information [QTBUG-18290]
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QtGui
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-----
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- QApplication: Add a queryKeyboardModifiers() method.
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- QTabBar: reduced minimumSizeHint if ElideMode is set.
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- QComboBox: Fixed a color propagation issue with the lineedit. [QTBUG-5950]
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- QGraphicsLayout: Made setInstantInvalidatePropagation() public
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- Deprecate qGenericMatrixFromMatrix4x4 and qGenericMatrixToMatrix4x4
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- QListView diverse optimisations [QTBUG-11438]
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- QTreeWidget/QListWidget: use localeAwareCompare for string comparisons [QTBUG-10839]
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- PNG image I/O: Much improved support for text annotations, including iTXt fields.
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- QRawFont and QGlyphRun are introduced for low-level text rendering. [QTBUG-18252]
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- QFont: hintingPreference() is introduced to control hinting in font rendering and
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subpixel positioning of glyphs for Windows, Mac OS X and X11/raster. [QTBUG-10615]
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- Subpixel positioned text layout is supported in raster and OpenGL paint engines.
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- QFont: styleName() is added to allow selecting fonts with irregular style names
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like UltraLight. [QTBUG-19366]
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- Visual text cursor movement behavior is added to QTextEdit and QLineEdit controls,
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which can be used as an optional mode for bi-directional text editing. [QTBUG-13859]
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- Fixed several bidi reordering bugs.
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- Make HTML exported from QTextDocument containing empty lines more compliant.
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- Include font pixel size when exporting HTML from QTextDocument.
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- QPainter: Added a fast stroking algorithm for thin (< 1px wide) aliased and antialiased
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lines, giving a huge improvement in drawing speed for certain cases
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- Fixed a rare race condition when showing toplevel windows on X11
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- QWindowsStyle: fix bug in eventFilter on KeyPressed event with alt pressed, that
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caused unnecessary update events
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- Accessibility: Fix potential crash in QDockWidget.
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- Accessibility: Fix crash when asking for relations of child accessibles.
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- Accessibility: More consistency in reporting names (especially when widget is invisible).
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- Accessibility: Make focus handling more consistent.
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- Accessibility: Send updates when text changes.
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- Accessibility: Add IAccessible2 events.
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- Accessibility: Fix crash when accessing ItemViews during initialization.
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- Accessibility: Make QTabWidget child hierarchy consistent.
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- Accessibility: Report correct window title and application name.
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- Accessibility: Return text attributes for QTextEdit.
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- Accessibility: Make accessibility work on Windows with alien widgets
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- Accessibility: Several enablers for accessible graphicsview and Qt Quick applications.
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- Fixed loading BMP files with version 4 and 5 headers, ignoring extra data.
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- QTextCursor optimization
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- QUndoGroup, QUndoStack: Allow using not only prefixes for undo command text [QTBUG-14442]
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- QUndoView: Allow different text for undo actions and items
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- QCommonStyle: Fix overrides from the proxy style [QTBUG-20849]
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- QWindowsVistaStyle: Draw CE_ProgressBarGroove correctly with PP_TRANSPARENTBAR.
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- Removed obsolete -qt-gif configure option.
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QtNetwork
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---------
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- SSL: Switch default version to TLS 1.0
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- SSL: enable Server Name Indication (SNI) by default
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- QSslCertificate: report fraudulent certificates as invalid ("Comodogate") [QTBUG-18338]
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- QSslCertificate: display non-ASCII names from subject and issuerInfo (MR-922)
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- QSslCertificate: loat root certificates on demand on Unix (excluding Mac) [QTBUG-14016]
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- QNetworkCookie: retain quotes in value attribute [QTBUG-17746]
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- QNetworkCookie: allow spaces in unquoted values [QTBUG-18876]
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- HTTP API: add support for HTTP multipart messages [QTBUG-6222]
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- HTTP cache: do not load resources from cache that must be revalidated [QTBUG-18983]
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- HTTP cache: change file organization (MR-2505)
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- SOCKS5: write errors are propagated to the outer socket [QTBUG-18713]
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- Cookies: Commas are no longer used to support multiple cookies in a single Set-Cookie header [QTBUG-21456]
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- QNetworkReply: errorString() returns translated messages now [QTBUG-18382]
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QtOpenGL
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--------
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- Removed dependency of OpenGL Utility Library (GLU)
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- Added QGLFunctions, which provides cross-platform access to the
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OpenGL/ES 2.0 API.
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- Including <QtOpenGL> will not work in combination with GLEW, as
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QGLFunctions will undefine GLEW's defines.
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- Optimize behavior of QGLTextureCache
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- Support subpixel antialiasing when possible.
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- [QTBUG-13450] Fixed path drawing on FBOs without stencil buffer.
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- Reading from the FrameBuffer with Qt now correctly gives an image
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marked as premultiplied.
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QtScript
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--------
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- Deprecated qScriptValueFromQMetaObject, qScriptValueToValue, qScriptValueFromValue
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QtDBus
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------
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- Added a method that returns the local machine ID
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QtWebKit
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--------
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- Update QtWebKit to 2.2.0
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http://trac.webkit.org/wiki/QtWebKitRelease22
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QtSql
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-----
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- Update sqlite to 3.7.7.1
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- QSqlField now initializes the type of its QVariant value to its own type.
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- QSqlField's generated flag now controls generation of SQL insert/update/delete
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in QSqlDriver::sqlStatement(). QSqlTableModel initializes the flag to false in
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new edit records and sets it to true when a value is set. Applications can still
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manipulate generated flags directly to control SQL generation. [QTBUG-13211]
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QtSvg
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-----
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- [QTBUG-16216] Fixed infinite loop when loading some SVGs with CSS style.
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QtDBus
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------
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- Make QDBusServer work [QTBUG-186]
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- QDBusConnection: Add methods disconnectFromPeer and connectToPeer
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- Make the DBus timeout configurable in QDBusAbstractInterface.
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QtTest
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------
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- Added -random and -seed options to tests, making the test cases within
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a test execute in arbitrary order.
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- Added -datatags option to list available data tags for each test function.
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The test case name is also listed.
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****************************************************************************
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* Database Drivers *
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****************************************************************************
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****************************************************************************
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* Platform Specific Changes *
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****************************************************************************
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Qt for Linux/X11
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----------------
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- Now takes font hinting settings from GConf by default if running in
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GNOME desktop.
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- Various fixes to FontConfig font matching code to make it consistent
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with other X11 programs. [QTBUG-2148, QTBUG-19947, QTBUG-14269]
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- Added experimental support for armCC
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- Experimental support for associating Wayland clients with PID or a token,
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to facilitate window management.
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- Added plugin system for menubars, making it possible to provide
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alternative menubar implementations. (eg, appmenu:
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https://launchpad.net/appmenu-qt)
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Qt for Windows
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--------------
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- DirectWrite experimental text shaping engine is added with subpixel
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positioning support. [QTBUG-12678]
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- QElapsedTimer: use QueryPerformanceCounter if available.
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- MSVC runtime is bound to the runtime you're building with. This makes
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deployment on Windows easier. (QTBUG-8215)
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- QLocalSocket::isValid() has been fixed. (QTBUG-18204)
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- qFadeEffect() issue fixed. The QSystemTrayIcon's popup menu no longer
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stays transparent in rare circumstances after the animation has completed.
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- The small 16x16 version of the default window icon is now being loaded
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correctly from the IDI_ICON1 resource.
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- Fixed version checking for untested versions of Windows. (QTBUG-20480)
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- Qt libs on MinGW now come with pkg-config .pc files.
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Qt for Mac OS X
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---------------
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- Alien widgets is now used by default for Qt/Cocoa on Mac OS X.
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- Qt/Cocoa on Mac OS X has now full support for the raster paint engine.
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- QApplication has now implemented macEventFilter for Qt/Cocoa
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- HarfBuzz can now be used as an optional text layout engine on Mac OS X.
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[QTBUG-17728]
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- Qt shows some love to OS X Lion (10.7).
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Qt for Embedded Linux
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---------------------
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- Added support for QNX 6.5 with multi-process support, and much improved mouse,
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keyboard and screen drivers.
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- Improved support for INTEGRITY RTOS
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- Allow hard-coding the temp path in mkspecs (QT_UNIX_TEMP_PATH_OVERRIDE define)
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- Added support for opening LinuxInput devices exclusively (via ioctl EVIOCGRAB)
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- Added eglnullws QScreen driver for use with OpenGL ES EGL null window system (NullWS).
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Qt for Symbian
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--------------
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- File APIs now have backends using native API rather than unix.
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This improves performance and stability.
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- Socket APIs now have a backend using native API rather than unix. [QTBUG-7274]
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This improves stability and enables IPv6.
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- IPv6 connectivity is now supported.
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- Multiple instances of QNetworkAccessManager in the same process with a
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different QNetworkConfiguration now work. This allows http requests to
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be made via a specific network. For example to mobile operator websites
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only accessible via the cellular network, or to websites inside a firewall
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- System proxy settings now work correctly when using service networks [QTBUG-18618]
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- Prevent horizontal lines appearing under entered characters when predictive text is off
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- Checked state is not shown on highlighted itemview item when using QS60Style [QTBUG-19668]
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- Icon is not shown correctly in a menu item in all cases when using QS60Style [QTBUG-19330]
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- Remove S60 3rd edition support from QS60Style [QTBUG-18615]
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- Prevent softkeys from coming to foreground when taskswitcher is opened [QTBUG-19225]
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- Improve robustness of QS60Style when creating native theme bitmaps [QTBUG-21119]
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- Make spinboxes and lineedits slightly taller in QS60Style
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- Default graphics memory quota for Symbian applications support [QT-4963]
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- Improved support for shadow builds in Symbian [QTBUG-10432]
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- Fixed panic when global QSettings instance needs flusing at app exit [QTBUG-21421]
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- Detect app caption and pkg name translations by id attribute [QT-5247]
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- Fixed center aligned layouts for Symbian [QTBUG-14704]
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- Fixed Symbian system date format parsing [QT-5237]
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- Skip softkeys update if application is not on foreground in Symbian [QTBUG-19225]
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- Removed S60 version plugins [QTBUG-18614]
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- Improved DEFINES crossplatform compatibility in Symbian builds [QTBUG-19232]
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- Fixed loss of focus and activation when hiding a child widget [QTBUG-19196]
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- Fixed softkeys in case a dialog with softkeys that have icons is closed [QTBUG-19154]
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- Update softkeys after orientation switch [QTBUG-19150]
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- Implemented support for enable_backup CONFIG value [QTBUG-17214]
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- Improved logic to find default certificates in createpackage script [QTBUG-18684]
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- Changed createpackage and patch_capabilties scripts use tmp dir [QTBUG-11394]
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- Added ".make.cache" to the files to be cleaned for symbian-abld [QTBUG-15733]
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- Fixed emulator deployment for items with "!:" drive [QTBUG-18134]
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- Removed broken "deploy.path" support from Symbian [QTBUG-14426]
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- Strip echo suppression character "@" from commands in symbian-sbsv2 [QTBUG-4767]
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- Don't leave from QNotifyChangeEvent::RunL() in QFileSystemWatcher [QT-4660]
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- Fixed QProcess::waitForFinished WaitForRequest handling in Symbian [QT-4659]
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- Changed DEPLOYMENT keyword to accept both .sources and .files [QTBUG-3216]
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- Removed static vs dynamic library autodetection from qmake in Symbian [QTBUG-13498]
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- QtConcurrent is now working both with RVCT 2.2 and GCCE 4.4.1 on Symbian, but not with WINSCW,
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the compiler of Symbian emulator (and there is no plan to support it). [QTBUG-5182] [QTBUG-9070]
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Qt for Windows CE
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-----------------
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****************************************************************************
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* Compiler Specific Changes *
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****************************************************************************
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- Sun Studio 12
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* Fixed build issues in the OpenGL module on Solaris with CC 5.9. [QTBUG-19641]
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- Microsoft Visual C++
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* Fixed build issues with STLport. [QTBUG-18374]
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****************************************************************************
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* Tools *
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****************************************************************************
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- Build System
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- Assistant
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- Designer
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* [QTBUG-18631] Enabled the use of promoted QWidgets in the buddy editor.
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* [QTBUG-18120] Fixed saving of the Z-order.
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* [QTBUG-13683] Fixed saving of QGridLayout and QFormLayout
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by QFormBuilder.
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* [QTBUG-10890] Added a filter to the rich text editor dialog.
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that simplifies the HTML markup generated.
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* [QTBUG-7777] Added support for QIcon::fromTheme.
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* [QTBUG-7169] Fixed QtUiTools to be built with the correct
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lib-infix.
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* [QTBUG-3120] Added support for alignment of box layout items.
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- Linguist
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- Linguist GUI
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- lupdate
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- lrelease
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- rcc
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- moc
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- uic
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- uic3
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- qmake
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* Look for external Qt modules in $QMAKEPATH
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* MinGW: fix DEF_FILE for shadow builds. (QTBUG-11643)
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* Implemented "aux" template that allows making use of the INSTALLS variable
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without building anything. Needed for projects with QML entry point.
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* MSVC now link with /DYNAMICBASE /NXCOMPAT in order to increase security.
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* Add comctl32 v6 assembly dependency to both /SUBSYSTEM:WINDOWS and
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/SUBSYSTEM:CONSOLE applications to get consistent look and behaviour.
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* Fix the language settings in generated Windows resource files. (QTBUG-12249)
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* Write and install pkg-config files for MinGW
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* Make PKGCONFIG referencing missing packages fatal; add packagesExist() for
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a-priori checks. (QTBUG-11418)
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* Make moc use DEFINES from pkg-config. (QTBUG-19922)
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* Parsing nested quotes works a bit differently now
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* Added -unset <prop> option
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* Made the Hurd mkspec useful
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* Visual Studio project generator
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- Support x64 Qt builds. (QTBUG-17911)
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- QMAKE_PROJECT_NAME qmake variable introduced to set the project's name.
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- Support PCHs with other extensions than ".h". (QTBUG-16639)
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- Fix setting PCH options manually via the MSVC compiler flags. (QTBUG-15594)
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- Set the output directory correctly. (QTBUG-16490)
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- Fix handling of DEFINES from .prl files. (QTBUG-16024)
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- configure
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* The endianness for Windows is always set to little endian.
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* [QTBUG-5710] Configure now complains on missing perl on windows
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* Removed obsolete -qt-gif option
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* Allow setting LD, RANLIB, OBJDUMP, and STRIP.
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* Allow selecting imageformats to be built as plugin vs. internal.
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- qtconfig
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* removed Qt3support dependency
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- qt3to4
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- qmlplugindump
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* New tool to generate text descriptions of the QML components defined
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in plugins loaded by a QML module.
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- syncqt
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* Fix to allow $QTDIR to contain any valid pathname characters.
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- qdoc3
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* Add support for documenting QML using module identifiers.
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* Change the format of qdocconf files.
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****************************************************************************
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* Plugins *
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****************************************************************************
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****************************************************************************
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* Important Behavior Changes *
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****************************************************************************
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