Qt 4.6.3 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 4.6.0.  For more details,
refer to the online documentation included in this distribution. The
documentation is also available online:

  http://qt.nokia.com/doc/4.6

The Qt version 4.6 series is binary compatible with the 4.5.x series.
Applications compiled for 4.5 will continue to run with 4.6.

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                                        *
****************************************************************************

Examples and Demos
------------------

 - Added Spectrum analyzer demo application.
 - Added exit softkey to Wiggly example.
 - Added close button to Anomaly demo.
 - [QTBUG-10635]: Fixed Anomaly demo controlstrip icon placement for very
   small screens.


****************************************************************************
*                          Library                                         *
****************************************************************************

QtCore
------

 - QStateMachine
    * [QTBUG-8842] Ensure history configuration is cleared when a state
      machine is restarted.

 - QXmlStreamReader
    * [QTBUG-9196] Fixed crash when parsing.

QtGui
-----

 - QComboBox
    * [QTBUG-10403] Fixed QComboBox ignoring the item data background role 
      for some styles.

 - QCommonStyle
    * [QTBUG-7137] Fixed a bug that led to missing text pixels in QTabBar when
      using small font sizes.

 - QCUPSSupport
    * [QTBUG-10512] Fixed a potential crash with misconfigured CUPS printers.
    * [QTBUG-6419] Make QCUPSSupport::printerHasPPD() release temporary file
      handles.

 - qDrawPixmaps()
    * [QTBUG-8455] Fixed qDrawPixmaps() to draw on integer coordinates under
      Mac OS X.

 - QFontEngine
    * [QTBUG-3976] Fixed a leak for QFont objects used in threads.

 - QGifHandler
    * [QTBUG-7037] Fixed QGifHandler::loopCount().
    * [QTBUG-6696] Cache the sizes of images in an animated GIF.

 - QGraphicsEffect
    * [QTBUG-5358] Fixed warnings and crash when painting graphics effects
      outside scene.

 - QGraphicsItem
    * [QTBUG-9391] Avoid a useless repaint when setting the cache mode to
      DeviceCoordinateMode while already using that mode.
    * [QTBUG-8475] Fixed crash and loss of focus when deleting a child of a
      focus scope.

 - QGraphicsProxyWidget
    * [QTBUG-5349] Fixed tooltips not being shown for QGraphicsProxyWidget.
    * [QTBUG-2883] Fixed tooltips appearing at wrong location.
    * [QTBUG-7296] Fixed painting artifacts on a scaled proxy when the view
      is scrolled.

 - QGraphicsScene
    * [QTBUG-7863] Fixed incorrect blending when using
      QGraphicsItem::DeviceCoordinateCache and when the item is semi-
      transparent. If the item is transformed, the cache is now always fully
      repainted to avoid artifacts.

 - QGraphicsView
    * Item tooltips are not clipped by the view anymore.

 - QImageReader
    * [QTBUG-7980] Fixed QImageReader::setAutoDetectImageFormat() to work with
      plugins.

 - QPainter
    * [QTBUG-8140] Speed up custom bitmap brushes under X11 without Xrender
      support.
    * [QTBUG-8032] Fixed drawing pixmaps onto bitmaps on X11 without Xrender
      support.
    * [QTBUG-10421] Fixed WebKit-specific justification bug for text containing
      more than one script.

 - QPDFBaseEngine
    * [QTBUG-8451] Fixed line and point drawing in the PS and PDF generators.

 - QPixmap
    * [QTBUG-8606] Fixed QPixmap::load() to not modify referenced copies.

 - QPSPrintEngine
    * [QTBUG-10121] Fixed incorrect version setting for EPS files.
    * [QTBUG-10140] Fixed generation of the %%BoundingBox operator to output
      integer values instead of floating point values.

 - QRasterPaintEngine
    * [QTBUG-9036] Fixed ClearType text rendering on translucent surfaces under
      Windows.

 - QRegion
    * [QTBUG-7699] Prevented crash on large x-coordinates.

 - QTextDocument
    * [QTBUG-10301] Fixed a leak in QTextDocument::print().

 - QTextEdit
    * [QTBUG-9599] Fixed crash when copying the current text cursor as a result
      of deleting a character.

 - QTextEngine
    * [QTBUG-9374] Fixed possible crash in QTextEngine::boundingBox() when using
      multiscripted text.

 - QTextLayout
    * [QTBUG-9074] Fixed performance regression that was introduced in Qt 4.6.0.

 - QTransform
    * [QTBUG-8557] Fixed bug in QTransform::type() potentially occuring
      after using operator/ or operator* or their overloads.

 - QTriangulatingStroker
    * [QTBUG-9548] Fixed possible data corruption when certain paths were
      triangulated.

 - QWin32PrintEngine
    * [QTBUG-9938] Fixed a crash on Windows 7 systems with invalid PrinterPorts
      registry entries.

 - Improved scrolling horizontally with a mouse wheel over sliders.
 - [QTBUG-7451] Gestures respect panels on QGraphicsView.

QtOpenGL
--------

 - QOpenGLPaintEngine
    * [QTBUG-10529] Fixed an issue where bound pixmaps were not released
      correctly in the GL 1 engine.

 - QGL2PaintEngineEx
    * [QTBUG-8681] Fixed an application exit crash that could occur in the GL2
      engine under X11.

 - QGLContext
    * [QTBUG-5732] Fixed a GLX warning that occured with some Intel chipsets
      under X11.

 - QGLPixelBuffer
    * [QTBUG-8047] Fixed usage of QGLPixelBuffer with share widgets on other
      X11 screens.

 - QGLWidget
    * [QTBUG-7545] Fixed QGLWidget::grabFrameBuffer() to honor the 'withAlpha' flag.
    * [QTBUG-8054] Fixed drawing QPixmaps onto QGLWidgets on different X11 screens.
    * [QTBUG-7865] Fixed bug where GL widgets were not fully updated on
      Windows Vista/7 with Aero disabled.
    * [QTBUG-8753] Worked around driver bug causing clipping errors on the N900.
    * [QTBUG-10510] Workaround ATI driver bug when using QGraphicsEffect with GL.

QtScript
--------

 - [QTBUG-7066] Fixed regression introduced in 4.6.0 that made it impossible to
   change the prototype of the global object.
 - [QTBUG-8366] Fixed regression introduced in 4.6.0 that caused the instanceof
   operator to throw an error when the right-hand-side is generated by
   QScriptEngine::newQMetaObject().
 - [QTBUG-8400] Fixed memory leak when lazily binding QScriptValue to an engine.
 - [QTBUG-9775] Fixed regression introduced in 4.6.0 that caused the qsTr()
   function not to resolve the translation context correctly when invoked in
   the global scope.
 - [QTBUG-8364] Fixed regression introduced in QScriptclass in 4.6.0 that could
   cause the Callable extension to crash.
 - [QTBUG-6437] Fixed regression introduced in QScriptEngine in 4.6.0 that made
   installTranslatorFunctions() not work with custom global object.

QtXml
-----

 - [QTBUG-8398] QDom: prevent infinite loop when cloning a DTD.

QtXmlPatterns
-------------
  - [QTBUG-8920] fixed crash with anonymous types in XsdSchemaChecker.
  - [QTBUG-8394] include/import/redefine schemas only once.
  - QXmlSchema: fix crash with referencing elements.

****************************************************************************
*                      Platform Specific Changes                           *
****************************************************************************

Qt for Linux/X11
----------------

 - [MR 458] Improved handling of Shift-Tab with VNC on X11.
 - [QTBUG-7063] Changed key bindings (XF86XK_MyComputer, Qt::Key_Launch0,
   Key_Calculator) on X11 back to how it was in Qt 4.5 before MR 1742
   accidentally changed it.
 - [QTBUG-8666] Fixed a crash when using QIcon::fromTheme with icons declared 
   static.
 - QGtkStyle
   * [QTBUG-9240] Fixed a potensial crash in QGtkStyle when the gtk 
     theme engine is not unavaliable. 
   * [QTBUG-8537] Fixed a Glib-GObject-WARNING on application startup with
     certain versions of GTK+.
   * [QTBUG-8226] Fixed an atk_object_set_name assertion warning with certain
     versions of GTK+.

Qt for Windows
--------------

 - [QTBUG-6007] On Windows we query if there is a touch screen and do not try
   to enable gestures otherwise.
 - QLocalSocket
    * [QTBUG-7815] Pipe handle leak fixed, when closing a QLocalSocket that
      still has unwritten data.
    * [QTBUG-9681] Fixed closing state for local sockets with unwritten data.
    * [QTBUG-8418] Detection of Windows Mobile 6.5 fixed.

 - [QTBUG-7662] Fixed an issue with clipped icon text.
 - [QTBUG-7663] QFileIconProvider now show overlays when fetching native 
   filesystem icons.
 - [QTBUG-8324] Fixed a potential crash when fetching native icons.

Qt for Windows CE
-----------------

- Core changes
   * [QTBUG-8754] Fixed menu handling on Windows mobile.
   * [QTBUG-7943] Fixed a crash when receiving a certain type of
     WM_SETTINGSCHANGE message.

- QWindowsMobileStyle
   * [QTBUG-8419] Huge performance penalty for QTabWidget fixed for
     Windows Mobile 6.5.
   * [QTBUG-8757] QTabBar scroll button size has been fixed.

Qt for Mac
-----------------

 - [QTBUG-8461] Fixed incorrect text rendering with document mode tabs.


Qt for Symbian
--------------

 - Multimedia
   * [QT-567] Implementation of QtMultimedia QAudio* APIs.
   * [QTBUG-8919] Modified Phonon MMF backend to support video playback on
     platforms which use graphics surfaces (i.e. platforms using the
     New Graphics Architecture a.k.a. ScreenPlay).

 - mkspecs
   * Changed pkg_prerules to not use default_deployment for vendor ID.
   * Added forwarding headers for qplatformdefs.h in Symbian mkspecs.
   * Added some missing IBY export paths to platform_path.prf.
   * Fixed libstdcpp.dll version autodetection for Symbian.
   * [QTBUG-7836]: Removed unnecessary dependency to moc.exe from Symbian
     builds.
   * [QT-1171]: Fixed libstdcpp.dll version autodetection.
   * [QTBUG-8513]: Fixed misc FLM issues.
   * [QT-2909]: Support for adding conditional MMP_RULES.
   * [QT-3253]: Export .flm files always if they are different.
   * [QTBUG-9279]: Made it possible to define more than one language using
     pkg_prerules.
   * [QTBUG-6795]: Made sure target path exists in qmake_extra_pre_targetdep.flm.
   * [QTBUG-7883]: Only use unix-like tools when not building for Symbian
     in Windows.

 - configure
   * [QTBUG-7942]: Fix QT_BUILD_KEY for Symbian in Windows builds.

     IMPORTANT NOTE: The build key change causes all Qt for Symbian plugins
                     made with Qt 4.6.2 or earlier version incompatible with
                     Qt 4.6.3 and later.

   * [QTBUG-9065]: Support for -qtlibinfix parameter in Symbian.

 - qmake
   * Changed canonical paths to absolute paths in symmake.
   * Basic deployment support for ROM in Symbian.
   * Add '.' dir as the first include directory in Symbian.
   * [QT-3017]: Support for conditional subdirs.
   * [QT-3083]: Expanded support for RSS_RULES.
   * [QTBUG-8685]: RVCT 4 support to Symbian builds.
   * [QT-3147]: Changed Symbian pkg files to deploy from under epoc32.
   * [QT-2985]: Fix extensions section in bld.inf when CONFIG contains
     symbian_test.

 - S60installs
   * Export qtdemoapps.iby to proper location.
   * [QT-3163]: Removed QtDeclarative.dll deployment from qt.iby.

 - QProcess
   * [QTBUG-7735]: Fixed crash at application exit when QProcess was used in
     Symbian.
   * [QTBUG-8906]: Removed extra space from the command line passed to
     QProcess in Symbian.

 - QtGui
   * QUnixPrintWidget is no longer declared in Symbian.
   * [QTBUG-10207]: Fixed long menu item texts causing crash.
   * [QTBUG-9910] Fixed incorrect dialog position when native AVKON combined
     status-and-control pane is in use.
   * [QTBUG-4875] Made QMessageBox match size with native Symbian messageBox.
   * [QTBUG-5539] Fixed QMessageBox to stretch to screen width with very small
     content.
   * [QTBUG-7828] Fixed Virtual keyboard closing issue with Sym^3.
   * [QTBUG-9480] Use focus widget palette colors to show T9 suggested or
     autocompletion words in QCoeFepInputContext.
   * [QTBUG-10006] Changed default supported text modes to all, instead of just
     lower and upper cases in QCoeFepInputContext.
   * [QT-3277] Support text selection in QCoeFepInputContext for Sym^3.
   * [QT-3008] Fixed crash in QGraphicsScenePrivate::setFocusItemHelper.

 - QS60Style
    * [QTBUG-10697] Support native-like selection in item views.
    * [QTBUG-10454] Made styled sliders match in size to native sliders.
    * [QTBUG-10073] Fixed QMenu with a lot of menu items.
    * [QTBUG-3102] Fixed QTabWidget icon size issue.
    * [QTBUG-5001] Show combobox list as a popup instead of dropdown list.
    * [QTBUG-7258] Fixed calculations of PM_FocusFrameVMargin and
      PM_FocusFrameHMargin pixel metrics.
    * [QTBUG-7996] Fixed squeezed scrollbar handle and groove ends.
    * [QTBUG-8193] Fixed drag-n-drop drop area drawing issue.
    * [QTBUG-8194] Removed scrollbar context menu support.
    * [QTBUG-8704] Fixed palette issues when drawing highlighted text.
    * [QTBUG-9212] Fixed itemview multiselection issues.
    * [QTBUG-9321] Fixed very large spinboxes drawing issues.
    * [QTBUG-9837] Fixed text cutting issues with narrow QComboBoxes.
    * [QTBUG-9844] Fixed QTreeView branch drawing issues in right to left
      UI layout.
    * [QTBUG-9927] Fixed transparent list higlight to show up correctly for
      S60 3rd edition FP1 devices.
    * [QTBUG-10064] Removed focus frame drawing for context menus and popups.
    * [QTBUG-10487] Fixed QToolButton to be drawn pressed when context menu
      for that button is open.
    * [QTBUG-10549] Fixed style to honor stylesheet when drawing focus frame
      for QPushButtons.
    * [QT-3295] Made QMenu to look more native-like.
    * [QT-3185] Fixed border frames to be drawn transparent for Sym^3 devices.
    * [QT-3148] Draw application background correctly when animated wallpaper
      is used in Sym^3 device.
    * [QT-3137] Launch virtual keyboard with single tap.
    * [QT-3104] Re-locate QTabWidget's scrollbuttons to either side of widget.
    * [QT-2179] Fixed QPushButton with text and QPushButton with standard icon
      to be of same size.

 - Examples & demos:
   * Enabled more examples by default in Symbian builds.

 - Documentation
   * [QTBUG-9277]: Clarified pkg_prerules usage documentation.

 - Plugins:
   * Fixed sqlite3_v9.2.zip to export sqlite3.iby to correct location.

 - General
   * [QT-3055]: Fixed filename cases to support building Qt for Symbian in
     Linux.


****************************************************************************
*                          Tools                                           *
****************************************************************************

 - qmake
    * Fixed qmake.pro for using with mingw