221 lines
8.1 KiB
Plaintext
221 lines
8.1 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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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 x.y.z
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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: 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: 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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- 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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- 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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QtGui
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-----
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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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- Deprecate qGenericMatrixFromMatrix4x4 and qGenericMatrixToMatrix4x4
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- QListView diverses 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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- 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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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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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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QtScript
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--------
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- Deprecated qScriptValueFromQMetaObject, qScriptValueToValue, qScriptValueFromValue
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QtSql
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-----
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- Update sqlite to 3.7.7.1
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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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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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Qt for Mac OS X
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---------------
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- raster graphics system is now made as the default paint engine for
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Mac OS X. [QTBUG-12615]
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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 for Embedded Linux
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---------------------
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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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****************************************************************************
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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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- configure
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- qtconfig
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* removed Qt3support dependency
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- qt3to4
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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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