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 ------ - Containers * [QTBUG-13079] Fix assingment of a container included in the container itself - QLibrary * [QT-3825] System libraries are only loaded from the system directories - QUuid * [QTBUG-11213] QUuid::createUuid() should not generate identical sequences on UNIX - QEventDispatcherUnix * [QTBUG-13633] Do not process too many timer events if other events need to be processed first 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. * Optimized pixmap drawing with SmoothPixmapTransform. - 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. - QLineEdit * [QTBUG-13520] Fixed the scrolling of text with right alignment - QPixmap * [QTBUG-12560] Fixed a regression preventing loading images without extensions - QTreeView * [QTBUG-13567] Do not scroll to top if last item is removed 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. - IPv6 * Disable on Symbian until OpenC properly supports it - QNetworkAccessManager * [QTBUG-12285] Crash fix related to aborted uploads QtOpenGL -------- - QGL2PaintEngineEx * Fixed drawing a large number of glyphs with the same font on systems with small texure size limits. QtOpenVG -------- QtWebKit -------- QtSql ----- QtSvg ----- QtXml ----- * Fixed a crash when parsing invalid tag names. 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 * Various improvements to ease debugging in creator - QDeclarativeImageProvider: * Fixed memory leak * Improved concurrency when using in assynchronus mode. 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) ------------------------------ - Event System: * [QT_3553] Fix invalid memory write during recursive timer activation. Qt for Linux/X11 ---------------- - The configure script now detects all vector extensions of x86 and x86_64 Qt for Windows -------------- - Event System: * [QTBUG-12721] Fix Qt applications freezing until mouse/keyboard events occur. - Drag & Drop: * [QTBUG-13787] Fixed a possible crash with mingw - QPrinter * [QTBUG-12263] Strokes were in some cases not printed with the correct color under Windows. - QGLWidget * [QTBUG-13141] Fixed multi-sampling support for ATI based cards under 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-4586] Fixed wrong paths in include/ActiveQt/headers.pri. * [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. * [QTBUG-12851] Fix assertion on Windows when DESTDIR is empty in static libs. * [QTBUG-12802] Fix vcxproj generator when using /Fd in QMAKE_CXXFLAGS. * [QTBUG-13080] vcxproj generator: fix bug when using CharacterSet=1 in .pro file. * [QTBUG-13081] vc[x]proj generators: support /MAP option without file name. - 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. Qt for Windows CE ----------------- - Gui * [QTBUG-8408] Show the [X] button on Windows mobile when maximizing. **************************************************************************** * Tools * **************************************************************************** - Designer - uic * Improve warnings and error reports - moc * Show an error if NOTIFY refer to a wrong signal in Q_PROPERTY **************************************************************************** * Important Behavior Changes * ****************************************************************************