1 Qt 4.2.3 is a bug-fix release. It maintains both forward and backward
2 compatibility (source and binary) with Qt 4.2.0.
4 The Qt version 4.2 series is binary compatible with the 4.1.x and 4.0.x
5 series. Applications compiled for 4.0 or 4.1 will continue to run with 4.2.
7 ****************************************************************************
9 ****************************************************************************
14 - Configuration/Compilation
15 * Fixed architecture detection on UltraSPARC-T1 systems.
16 * Fixed compilation on embedded architectures when qreal is not double.
20 * Completed documentation for "Implementing Atomic Operations",
21 which is useful for people porting Qt to a new hardware architecture.
24 * Added a new unofficial Portuguese translation courtesy of Helder
28 * Made the columns in the phrasebook resizeable.
31 * Fixed bug in the .pro parser of lupdate. It should accept backslashes.
32 * Fixed a severe slowdown in lupdate. (~400x speedup.)
33 * Fixed traversal of subdirectories.
36 * Don't create trigraphs in the generated code for C++ casts.
39 * Fixed a bug that generated excessive margins for Q3GroupBox.
41 Third party components
42 ----------------------
46 * Security fix: Avoid null dereferences.
48 ****************************************************************************
50 ****************************************************************************
57 * Calling QGraphicsScene::update() without arguments now correctly
58 updates the entire scene.
59 * Changing the background brush in QGraphicsScene now correctly updates
61 * Fixed a crash in QGraphicsScene due to stale pointers in the BSP tree.
62 * QGraphicsScene::createItemGroup() now allows you to create an empty
63 group (previously caused an assert in debug mode).
64 * Fixed rendering bugs with QGraphicsPixmapItem::offset().
65 * Adding an item to a QGraphicsScene now always implicitly causes an
67 * Fixed a crash caused by deleting a QGraphicsScene that is being viewed
69 * Items with zero width or height (e.g., a horizontal or vertical line
70 with a zero-width cosmetic pen) are now rendered correctly.
71 * Fixed a crash in QGraphicsScene::destroyItemGroup(), and when removing
75 * Fixed data loss in QTreeWidget, QTableWidget and QListWidget that
76 occurred when performing a drag and drop copy operation on items
77 containing data in custom roles.
79 * Fixed signal emission bugs in QSqlQueryModel and QSqlTableModel that
80 caused the view to contain invalid items when used with a
81 QSortFilterProxyModel.
83 * Fixed a bug in word-wrapped text that could cause all new-line
84 characters, and the last line in string containing at least one
85 newline character, to be removed.
87 * Fixed bug in QListView where the last item of a batch was not always
91 * Fixed a possible crash when using alternate shortcuts on a QAction.
94 * Fixed a crash in toUpper().
97 * Indeterminate progress bars are now correctly animated.
100 * Fixed broken case sensitive completion.
101 * Changing the font on a QComboBox now changes the font on the popup as
105 * Fixed regression where some shortcuts didn't work on Mac OS X.
108 * Fixed potential memory overrun when determining a clipping chunk.
111 * Fixed unexpected remote disconnection bugs (also QTcpSocket).
114 * Performance enhancements in QFile::copy().
115 * Allow reading past the previous end of the file if the file grows.
116 * Reliably allow QFile::readLine() and QFile::readAll() to be used to
117 read from stdin on all platforms.
120 * Fixed crash that could occur when the filter began with ';;'.
121 * Fixed assertion caused by calling setFilters() with an empty list.
122 * Fixed problem with file entries not being laid out correctly.
125 * Fixed bug in handling of fixed size spacers spanning multiple
129 * Fixed bug caused by setting minimumSize() and SizePolicy::Fixed on a
130 widget that implements minimumSizeHint() but not sizeHint().
133 * Fixed crash caused by moving the cursor over a QChar::LineSeparator
137 * Fixed bug in QPainter::drawPoints() when using the raster paint engine
138 which caused some points to be missing.
139 * Removed memory leak in raster paint engine when drawing complex
143 * Fixed a crash that could occur when calling QProcess::waitForFinished()
144 from inside a slot connected to a signal emitted by QProcess.
145 * Fixed a race condition on Windows where QProcess::bytesToWrite() would
146 return a short byte count.
149 * Fixed find() with backward searches.
150 * Match CSS style selector case insensitively.
151 * Fixed HTML import for tables with missing cells and rowspan/colspan
154 - QSortFilterProxyModel
155 * Fixed a crash caused by calling filterChanged().
156 * Fixed a crash caused by removing items from the source model.
157 * Fixed a bug that could cause a model to enter an invalid state when
158 filtering items in a hierarchy, causing items in a QTreeView to
159 erroneously be collapsed.
160 * Fixed a bug that could cause invalid items to be added when inserting
161 new items to the source model.
164 * Fixed failing assertion that could occur when installing a syntax
165 highlighter before the document has created a layout.
168 * Fixed compilation of Q_EXPORT_PLUGIN when used with templates.
171 * Fixed a bug where QTcpSocket would time out when connecting to a
172 closed service on Windows.
173 * Fixed a race condition when calling waitFor...() functions with a very
175 * Fixed unexpected remote disconnect problems on Windows.
176 * Improved the reliability of the waitFor...() functions with SOCKS5
180 * Fixed rendering of surrogate pairs and cursor navigation with them.
183 * Fixed crash in QTextEdit::setExtraSelection() that could occur when
184 used with null cursors.
185 * Fixed scrollbar bug which could cause the bottom of the text to be
189 * Fixed QTextStream::readLine() so it can be used reliably with stdin on
190 all platforms, and updated the documentation to reflect this.
193 * Ensured that tab bars are drawn correctly regardless of the font used.
196 * Properly marked the "text heuristic matching" strings for translation.
199 * Fixed incorrect scrolling on large menus on Mac OS X.
202 * Ensured that indeterminate progress bars are now always animated and
203 fixed a rendering bug.
206 * Fixed a bug on X11 that caused the printer to generate too many
208 * Fixed a bug in the PostScript driver that could cause invalid
209 PostScript to be generated.
211 - QSqlRelationalTableModel
212 * Ensured that the internal cache is cleared after
213 QSqlRelationalTableModel::submitAll() is called.
216 * Ensured that QSqlDriver::formatValue() doesn't cut off characters from
220 * Removed false assertion when deleting the first row or column in a
222 * Fixed crash when splitting cells in the rightmost column of a table.
223 * Fixed issue where QTextTable::splitCells() would shift cells further
225 * Fixed crash in QTextTable::mergeCells() caused by merging an already
229 * Fixed QToolTip sizes when used with HTML tags like <BR>.
232 * Fixed a busy-wait causing the event loop to spin when writing a
233 datagram to an unbound port.
234 * QUdpSocket now reliably emits readyRead() in connected mode.
237 * Fixed a crash that would occur as a result of calling errorString() on
241 * Prevent crashes in QSqlQuery after reopening a closed ODBC connection.
242 * Prevent crash when retrieving binary data from ODBC.
243 * The Interbase driver now returns a valid handle through
244 QSqlDriver::handle().
247 * Fixed race condition in QMutex::tryLock() that would prevent all
248 other threads from acquiring the mutex
251 * Fixed crash when modifying a QList that must be detached from a
255 * Fixed case where a modal dialog could be stacked below its parent
256 window when the dialog was shown first
257 * Fixed an erroneous hideEvent() from being sent immediately after
259 * Fixed problem with missing text in QWidget::whatsThis().
262 * Fixed a crash that could occur when deleting a QProgressBar after its
266 * Fixed assertion caused by streaming in a variant containing a float.
269 * Fixed focus problem with cell widgets.
272 * Fixed problem with context menus clearing the selections.
275 * Fixed assertion that could occur when removing all sections when some
276 sections had been moved.
277 * Fixed a bug that could prevent the user from resizing the last
278 visible section if the "real" last section was invisible.
281 * Fixed crash when calling reset.
284 * Fixed painting problem that could occur when rows were swapped.
287 * Fixed a crash that could appear when removing all the children of an
290 ****************************************************************************
291 * Platform Specific Changes *
292 ****************************************************************************
296 * Fixed detection of Type1 symbol fonts.
297 * Fixed crash on exit in QSystemTrayIcon when QApplication is used
299 * Fixed animation GUI effects on tooltips, menus, and comboboxes.
300 * Fixed crashes in threaded programs when Qt uses the Glib main
302 * Fixed bug where an empty LANG environment variable could prevent input
303 of non-ASCII chars in Qt widgets.
304 * Fixed leak of initial style created by QApplication after calling
305 QApplication::setStyle().
306 * Fixed erroneous event delivery to a widget that has been destroyed.
307 * Prevent shortcuts for keypad arrow keys from being activated when
309 * Fixed bug which caused incorrect drawing of subrectangles of bitmaps.
310 * Fixed bug in rendering of the Bengali script.
314 * Fixed compilation with -no-stl.
315 * Fixed compilation with Windows SDK for Vista.
316 * Fixed an issue that could cause missing text when Cleartype was used.
317 * Fixed the hot-spot locations for OpenHandCursor and CloseHandCursor.
318 * Fixed infinite warning loop about adopted threads in applications with
320 * Fixed assertion caused by hiding a child widget whose window has not
322 * Fixed QWindowsXPStyle so that it is possible to draw a
323 QStyle::CE_DockWidgetTitle without having an actual instance of
325 * Fixed crash when drawing text with large font sizes.
326 * Fixed support for the Khmer language.
327 * Fixed incorrect reporting of frameGeometry() after a window is closed.
328 * Fixed crash when handling spurious WM_CHAR from Remote Desktop Client.
329 * Fixed crash in JPEG plugin while loading.
330 * Fixed crash in QFileDialog::getExistingDirectory() when specifying
331 a parent that has not been shown yet.
335 * Fixed regression where dragging/copying Unicode text in Qt to another
336 application would only export the non-Unicode version.
337 * Fixed regression where releasing the mouse button would send two mouse
338 releas events to a widget.
339 * Fixed regression where the drop action would be reset after a native
340 "DragLeave" event was received.
341 * Wrapping a (non-Qt) window's content view and resizing before showing
342 the window for the first time now works correctly.
343 * Ensured that the content view is always created before we QWidgets are
344 added to a window - this allows better integration with Cocoa apps.
345 * Fixed regression where text/uri-list was inadvertently disabled for
347 * Fixed regression where setting the brushed metal style on a message
348 box would show the label in a non-metallic style.
349 * Fixed the open source binary package to have the correct definitions
354 * Fixed a data corruption bug in QDataStream on ARM processors where
355 reading and writing doubles/qreals would be incompatible with streams
357 Note: corrupt data streams generated with previous versions of Qtopia
358 Core on ARM platforms cannot be read with this version.
359 * Fixed a possible buffer overflow in the VNC driver.
360 * Fixed a memory leak in the windowing system.
361 * Fixed painting errors occuring with use of QT::WA_PaintOnScreen on
362 certain screen configurations.
363 * Improved performance when using a 16-bit brush as the background on a
365 * Improved performance of 16-bit semi-transparent solid fills.
366 * Fixed crash that could occur when saving a 16-bit image in BMP or PPM
368 * Fixed bug where window icons would not be shown in Plastique style.
369 * Fixed bug in QWSServer::setMaxWindowRect() on rotated displays.
370 * Fixed crash with normalized Unicode characters and QPF fonts.
371 * Ensured that QWidget::minimumSize() does not become larger than the