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Qt 4.7.1 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 4.7.0. For more details,
refer to the online documentation included in this distribution. The
documentation is also available online:
http://qt.nokia.com/doc/4.7
The Qt version 4.7 series is binary compatible with the 4.6.x series.
Applications compiled for 4.6 will continue to run with 4.7.
Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Qt Bug Tracker, the (now obsolete) Task
Tracker, or the Merge Request queue of the public source repository.
Qt Bug Tracker: http://bugreports.qt.nokia.com
Task Tracker: http://qt.nokia.com/developer/task-tracker
Merge Request: http://qt.gitorious.org
****************************************************************************
* General *
****************************************************************************
Optimizations
-------------
- Improved the benchmarking library's timing code
* Uses a faster access to the system clock
- Introduction of SSSE3 for alpha blending of images.
- On x86 and 86_64, the memory access has been improved for alpha blending
and for some composition functions.
* See list of Important Behavior Changes below
****************************************************************************
* Library *
****************************************************************************
QtCore
------
QtGui
-----
- QGraphicsWidget
* [QTBUG-13188] Make sure a font that has propagated from a parent can
be set on a QPainter.
- QPainter
* [QTBUG-13429] Fixed scale point drawing with square cap in the raster
engine, plus some potential floating point overflows in the rasterizer.
- QStaticText
* [QTBUG-12614] Fix crash with zero-width string.
* [QTBUG-12540] Fix rendering of large glyphs with OpenGL2 paint engine.
- QPinchGesture
* The scaleFactor and totalScaleFactor now represent a value that allows
an object to track a touchpoint during a Pinch Gesture even when using
sequences for zooming.
Therefor the scale factors are initialized to 1.0 and for every new
sequence the totalScaleFactor is multiplied with the scaleFactor of the
new sequence.
QtDBus
------
QtMultimedia
------------
QtNetwork
---------
- QSslConfiguration
* [QTBUG-13265] fix crash with empty configuration
- QSslCertificate
* [QTBUG-12489] support dates > 2049
- Bearer Management
* Improved reliability on Symbian and Maemo.
QtOpenGL
--------
QtOpenVG
--------
QtWebKit
--------
QtSql
-----
QtSvg
-----
QtXmlPatterns
-------------
- XML Schema internals:
* [QTBUG-11559] Only parse 3 digits of time fraction
QtDeclarative
-------------
- QML debugging:
* [QTBUG-5162] The debugger is now activated with -qmljsdebugger command
line arg to enable support for platforms without environment variables
Qt Plugins
----------
- Jpeg image IO plugin
* [QTBUG-13653] Fixed infinite loop when loading jpeg without EOI marker
from memory.
****************************************************************************
* Platform Specific Changes *
****************************************************************************
Qt for Unix (X11 and Mac OS X)
------------------------------
Qt for Linux/X11
----------------
- The configure script now detects all vector extensions of x86 and x86_64
Qt for Windows
--------------
Qt for Mac OS X
---------------
- The configure script now detects all vector extensions of x86 and x86_64
* [QTBUG-10500] Fixed a bug which causes the QMainWindow geometry
to be calculated wrongly, when used with native toolbars.
* [QTBUG-13878] Application menu entries can now also be translated
using the QMenuBar context.
Qt for Symbian
--------------
- configure
* [QTBUG-11671] Fixed audio-backend detection in configure tests.
- qmake
* [QTBUG-13523] Added support for using -L notation in the LIBS variable
when building with the symbian/linux-armcc or gcce mkspec.
- QInputContext
* [QTBUG-12949] Fixed a bug where passwords would not be committed when
confirming.
* [QTBUG-13472] Fixed crash in input methods when using symbols menu and
numbers only.
****************************************************************************
* Tools *
****************************************************************************
- Designer
- uic
* Improve warnings and error reports
****************************************************************************
* Important Behavior Changes *
****************************************************************************
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