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Qt 4.5.2 is a bug-fix release. It maintains both forward and backward
compatibility (source and binary) with Qt 4.5.0. For more details,
refer to the online documentation included in this distribution. The
documentation is also available online:
http://doc.trolltech.com/4.5
The Qt version 4.5 series is binary compatible with the 4.4.x series.
Applications compiled for 4.4 will continue to run with 4.5.
Some of the changes listed in this file include issue tracking numbers
corresponding to tasks in the Task Tracker:
http://www.qtsoftware.com/developer/task-tracker
Each of these identifiers can be entered in the task tracker to obtain more
information about a particular change.
****************************************************************************
* General *
****************************************************************************
General Improvements
--------------------
- Documentation and Examples
* Added a new example (fancy browser) which shows how to use jQuery
in QtWebKit.
Third party components
----------------------
****************************************************************************
* Library *
****************************************************************************
- QtWebKit
* Backported fixes for critical bugs, memory leaks, and crashes from
WebKit trunk (with revision numbers) related to:
Canvas (r40546, r41221 r41355, r42996, r43645)
Memory (r41527, r43764, r43828, r43830)
JavaScript (r39882, r40086, r40131, r40133)
Rendering (r41285, r41296, r41659, r42887)
Network (r41664, r42516, r42747)
Plugins (r41346, r43550, r43915, r43917, r43923)
Clipboard (r41360)
- QAbstractItemView
* [250754] Changing the font of the view would not update the size of the
items if there is an application stylesheet.
* [252532] Pressing enter in a QPlainTextEdit embedded on a itemview now
insert a newline
- QAbstractNetworkCache
* Only cache responses to HTTP GET by default, not HTTP PUT or POST
- QComboBox
* [253944] Changing the style doesn't reset custom item delegate anymore.
* [254589] Fixed the frame appearing if setting a stylesheet with a border
on the embedded itemview while there is a stylesheet on the application
- QDir
* Fix reentrency (listing directories in different threads)
- QMacStyle
* [253339] Don't draw arrows on toolbuttons that have a menu and text only.
* [252301] Ensure that small and mini spin boxes are drawn correctly.
- QMotifStyle
* Fix crash when changing style and destroying progressbar.
- QFontDialog
* [252000] Ensure that QFontDialog::getFont() works on Mac OS X.
- QNetworkCookie
* [251959] fix parsing of multiple cookies separated by a newline
- QNetworkCookieJar
* [251467] do not allow cookies for domains like ".com"
* [228974] allow cookies whose domain attribute is missing a leading dot
- QWidget
* [250668] Don't send extra wheel events when using the scroll wheel in Cocoa.
* [253448] Prevent a crash when using the Qt::WA_MacBrushedMetal attribute
in conjunction with style sheets.
- QObject
* Fixed possible race condition if two QObject connected together with
signals and slot are destroyed in different threads
- QPainter
* [253783] Fixed text shaping bugs when using ligatures and different
scripts in a single text item.
* Fixed various inconsistencies for image drawing on non-integer
coordinates.
* Fixed bug with 0-opacity causing images to be drawn fully opaque.
* Fixed crash when drawing on a null pixmap.
* [251534] Fixed issue where text with non-opaque color from widget
palette would be blitted instead of blended.
- QSelectionModel
* [252069] fix QSelectionModel::rowIntersectsSelection or QSelectionModel::columnsIntersectsSelection not reporting right result if some items are disabled.
- QSortFilterProxyModel
* [250023] Fixes QSortFilterProxyModel not reporting child if the model
need to fetchMore
* [251296] In dynamic filter model, childs of temporarly filtered items
where not correctly updated.
* [252507] Show a warning instead of crashing if invalid indexes are passed.
* [254234] Fixed setDynamicSortFilter not working when setting the model initially
- QString
* Fixed reentrency of QString::squeeze()
- QTransform
* Fixed issue in QTransform::type() causing a projective transform to be
treated as a scaling transform.
- QVector
* Fixed reentrency of QVector::reserve()
- QtOpenGL
* [247083] Re-enabled antialiasing for large font sizes in OpenGL paint
engine.
* [251485] Fixed crash that could occur with projective transforms and
high quality antialiasing.
- QCssParser
* [252311] "font-family:" now handle fallback font specified with a comas
separated list.
- QFile and QTemporaryFile
* Fixed a leak of file descriptors in QTemporaryFile::rename, introduced in 4.5.1
* [165920] QFile::copy leaves the source file open after the file has been copied
* [191467] & [252293] QFile::copy of resource files to the filesystem fails on Windows
* [197857] QFile::copy of resource files leaves temporary files on filesystem
* [248223] QTemporaryFile: Access denied error when (re-)opening through QFile interface
* [252659] QTemporaryFile::rename may leave source file behind
- QByteArrayMatcher
* [251958] Assignment operator and copy constructor miss data
- QCompleter
* [253125] QCompleter doesn't expand entries with UnfilteredPopupCompletion
- QPrintDialog
* [253135] Crash in QPrintDialog when editing output filename
****************************************************************************
* Database Drivers *
****************************************************************************
****************************************************************************
* Platform Specific Changes *
****************************************************************************
Qt for Linux/X11
----------------
[253186] Fixed compile error in qfontengine_ft.cpp on 64-bit platforms with
legacy freetype headers.
[241361] Prevented asynchronous access to non-thread safe libfontconfig API.
[244362] Worked around X server crash when calling XFillPolygon with more than
200000 points by falling back to raster paint engine.
[250326] Titlebar wasn't shown on X11 with Qt::CustomizeWindowHint for
fixed-size windows.
[251925] Improved showing QMessageBox on small screens.
Qt for Windows
--------------
[251259] Switching to another app left text cursor in line edits with
QtMfc framework.
Qt for Mac OS X
---------------
[252795] Ensure that we send Apple Events in the Cocoa port even when Cocoa isn't ready.
[252176] Fix regression in drawing parts of pixmaps on Panther.
[253402] Fix a crash when a Cocoa window that used to be a QWidget would get events
after the QWidget was destroyed.
Qt for Embedded Linux
---------------------
Qt for Windows CE
-----------------
[248846] handle the back soft key on Windows mobile.
****************************************************************************
* Compiler Specific Changes *
****************************************************************************
****************************************************************************
* Tools *
****************************************************************************
- Build System
* [253053] Linker in macx-g++42 spec is gcc instead of gcc-4.2
- Assistant
- Designer
* [248769] Fixed a bug affecting the display of keyboard shortcuts in
the detailed view of the action editor.
* [251092] Fixed a bug preventing entering local file names for QUrl-type
properties on Windows.
* [251691] Fixed dynamic re-translation of table headers.
* [252251] Improved readability of the property editor when using the
KDE Obsidian Coast theme.
* [253236] Fixed a regression bug triggered by forms with a size policy
of 'Fixed' on the main cointainer.
* [253278] Made it possible to set QString-type properties using
QDesignerFormWindowCursor::setProperty().
* [253539] Prevent crash in Designer with the Cocoa port when when using a scroll
wheel to change a property.
- Linguist
- Linguist GUI
- lupdate
- lrelease
- rcc
- moc
- uic
* [252333] Fixed a regression crash triggered by using icons with
different pixmaps for QIcon states.
- uic3
- qmake
- configure
- qtconfig
- qt3to4
****************************************************************************
* Plugins *
****************************************************************************
- directfb
* Make sure we pick an approriate format for pixmaps. E.g. use the same as
the primary surface for opaque pixmaps and pick an appropriate one for
transparent pixmaps if the primary surface format is not transparent.
* Properly fall back to the raster engine for pens that aren't solidcolor
* Properly fall back to raster engine with "mirrored" scales
* Make sure window surfaces are the approriate pixel format and created in
video memory if supported
* Fix clipping bug that would cause painting errors
* Fix various crash bugs
* Fix bugs when transforming/copying pixmaps with alpha channel
* Fix various bugs with regards to painting with alpha channel/porter duff
* Optimize a coupld of internal functions to slightly speed up drawing
* Optimize raster fall backs
* Allow more customization for Flipping options
* Fix drawing with opacity != 1.0
* Support for better logging when trying to debug performance problems.
* Fix bug in keyboard handling that caused modifiers not to work
* Get rid of some compiler warnings
****************************************************************************
* Important Behavior Changes *
****************************************************************************
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