1 Qt 4.5 introduces many new features and improvements as well as bugfixes
2 over the 4.4.x series. For more details, refer to the online documentation
3 included in this distribution. The documentation is also available online:
5 http://qt.nokia.com/doc/4.5
7 The Qt version 4.5 series is binary compatible with the 4.4.x series.
8 Applications compiled for 4.4 will continue to run with 4.5.
10 Some of the changes listed in this file include issue tracking numbers
11 corresponding to tasks in the Task Tracker:
13 http://qt.nokia.com/developer/task-tracker
15 Each of these identifiers can be entered in the task tracker to obtain more
16 information about a particular change.
18 ****************************************************************************
20 ****************************************************************************
28 - Disk Caching in QtNetwork
29 * Added support for http caching in QNetworkAccessManager.
30 * New classes: QAbstractNetworkCache, QNetworkDiskCache.
31 * QNetworkDiskCache is a simple disk-based cache.
34 * [207690] Added QDate::getDate().
37 * [196924] Improved QDateTimeEdit's usability. It now skips ahead to the
38 next field when input can't be valid for the current section.
41 * [178738] Fixed QDateTime::secsTo() to return the correct value.
43 - QDBusPendingCall / QDBusPendingCallWatcher / QDBusPendingReply
44 * New classes to make calls whose replies can be received later.
47 * Added the ability to determine the proper location to store cache files.
50 * Added the QGraphicsItem::itemTransform() function.
51 * [209357] Added the QGraphicsItem::opacity() function.
52 * [209978] Added the QGraphicsItem::ItemStacksBehindParent flag to allow
53 children to be stacked behind their parent item.
54 * Added QGraphicsItem::mapRect() functions.
57 * Added the QGraphicsScene::sortCacheEnabled property.
58 * Added the QGraphicsScene::stickyFocus property.
61 * [242331] Added the QGraphicsTextItem::tabChangesFocus() function.
64 * [210121] Added action, shortcut and shortcut override support to
65 QGraphicsView and QGraphicsItem.
68 * Added the ability to set the text margin size.
71 * Added API to detect which dock widget is tabified together with another
75 * It is now possible to create categories in QErrorMessage to avoid error
76 messages from the same category popping up repeatedly.
79 * Added introspection of constructors, including the ability to invoke a
83 * [217531] Added the notifySignalIndex() function, which can be used to
84 introspect which signal (if any) is emitted when a property is changed.
87 * [206125] Added support for HTTP-only cookies.
89 - QNetworkProxyFactory
90 * Added support for a factory of QNetworkProxy whose result can
91 change depending on the connection being attempted.
92 * Added support for querying system proxy settings on Mac OS X and
95 - QSharedPointer / QWeakPointer
96 * Added two new classes for sharing pointers with support for atomic
97 reference counting and custom destructors.
100 * [191369] Added QStringRef::localeAwareCompare() functions.
103 * Added the ability to place close buttons and widgets on tabs.
104 * Added the ability to choose the selection behavior after a tab is
106 * Added a document mode which, on Mac OS X, paints the widget like
108 * Added the movable property so that the user can move tabs easily.
109 * Added mouse wheel support so that the mouse wheel can be used to change
113 * Added a document mode that removes the tab widget border.
116 * [183743] Added support for requesting connections via proxies by
117 hostname (no DNS resolution made on the client machine).
119 - QTextDocument / QTextDocumentWriter
120 * Added the QTextDocumentWriter class which allows exporting of
121 QTextDocument text and images to the OpenDocument format
125 * Added a new module to provide a debugger for Qt Script.
127 - Qt::WA_TranslucentBackground
128 * Added this new window attribute to be able to have per-pixel
129 translucency for top-level windows.
131 - Qt::WindowCloseButtonHint
132 * Added a new window hint to control the visibility of the window close
135 - Qt::WindowStaysOnBottomHint
136 * Added a new window hint to allow the window to stay below all other
139 - Q_SIGNAL and Q_SLOT
140 * Added new keywords to allow a single function to be marked as a signal
144 * [227849] Added a new environment variable that specifies the input
145 method module to use and takes precedence over the QT_IM_MODULE
146 enviroment variable. This environment variable allows the user to
147 configure the environment to use different input methods for Qt 3 and
148 Qt 4-based applications.
151 * Added a number of overloads to the bindVariable(), setFocus(), and
152 evaluateTo() functions.
153 * Added a property for controlling the network access manager.
154 * Partial support for XSL-T has been added. See the main documentation for
155 the QtXmlPatterns module for details.
160 - The backing store has been re-factored and optimized
161 * Significant improvement in overall performance of painting for widgets.
162 * Reduced the number of QRegion operations.
163 * Improved update handling.
164 * Improved the performance of clipping.
165 * Support for full static contents.
167 - QGraphicsView has been optimized in several areas
168 * Reduced the number of floating point operations.
169 * Improved update handling.
170 * Improved handling of deeply nested item trees.
171 * Improved the performance of clipping for ItemClipChildrenToShape.
172 * Improved sorting speed, so scenes with deeply nested item hierarchies do
173 not affect the performance as compared to Qt 4.4.
175 - Widget style sheets optimisations
176 * Improved the speed of style sheet initialization.
179 * Optimized QPersistantModelIndex creation and deletion.
180 * Optimized adding and removing rows and columns.
183 * Ensured that the model is always sorted when required.
186 * Optimized expanding and collapsing items.
187 * Optimized expanding animations with large views.
190 * Improves on functions like intersect(), contains(), etc.
193 * Reduced the number of multiplications used for simple matrix types.
196 * Reduced overhead of state changes; e.g., setPen() and setBrush().
197 * Introduced a cache scheme for Windows glyphs, thus improving text
198 drawing performance significantly.
199 * Reduced the cost of doing rectangular clipping.
200 * Improved pixmap drawing.
201 * Improved pixmap scaling.
202 * Optimized drawing of anti-aliased lines.
203 * Optimized drawing of anti-aliased dashed lines.
205 Third party components
206 ----------------------
208 - Updated Qt's SQLite version to 3.5.9.
210 ****************************************************************************
212 ****************************************************************************
215 * [217988] Fixed a thread safety issue in QFontPrivate::engineForScript
216 which could lead to buggy text rendering when rendering text from
218 * [233703] Fixed a crash that occured when the input method (for example
219 SCIM) was destroyed while the application is still running.
220 * [233634] When there are several input method plugins available, they are
221 now initialized only when the user switches to them.
222 * [231089] Fixed an issue which caused HTTP GET to fail for chunk
224 * [193475] Consumer tablet devices (like Wacom Graphite and Bamboo) now
225 work on Windows and Mac OS X.
226 * [203864] Do not warn when deleting objects in their event handler except
230 * [233058] Fixed the sorting algorithm used in rowsRemoved().
233 * [221955] Fixed a bug that allowed rows to be selected even if the
234 selection mode was NoSelection.
235 * [244716] Fixed a possible crash when an edited cell was moved.
236 * [239642] Ensured that a rubber band selection is clear if the selection
237 ends on the viewport.
238 * [239121] Ensured that the old selection is clear when starting a
239 selection on the viewport.
240 * [219380] Fixed an update issue when removing rows.
243 * [221221] Fixed a usability issue with QAbstractSpinBox subclasses in
247 * [216648] Fixed a problem where QBitmaps were being converted to 32-bit
248 QPixmaps when QPixmap::resize() was called.
250 - QByteArray and QString
251 * [239351] Fixed a bug in QCharRef and QByteRef that would cause them to
252 fail to detach properly in some cases. Applications need to be
253 recompiled to use the fix.
254 * [212140] Added repeated() functions to these classes.
255 * [82509] Added QT_NO_CAST_FROM_BYTEARRAY to disable "operator const
256 char *" and "operator const void *" in QByteArray.
259 * [206017] Fixed minimumSize to be calculated correctly in the case where
260 the vertical header has a different text format set.
261 * [206282] Added support for browsing months using the mouse wheel.
262 * [238384] A click on the date cell will now be ignored if the year
266 * [195446] Skip disabled menu and menu bar items when using keyboard
268 * Fixed a problem with wrapped text eliding on titlebars.
269 * [204269] Fixed a sizing problem with push buttons having mnemonics.
270 * [216172] Fixed a problem with check box on inverted color schemes.
273 * [196704] Fixed a problem where the QColor::fromHsvF() function could
274 return incorrect values.
277 * [167106] Fixed a problem where the combobox menu would incorrectly show
278 check boxes after a style change.
279 * [227080] Fixed handling of the style sheet background-color attribute on
281 * [227080] Adjusted pop-up size when using style sheet border.
282 * [238559] Fixed the completer as it was not using the right column with
286 * [220475] Added support for On/Off icon states.
289 * [211489] Ensured that checkable group boxes with no title are drawn
291 * [222561] Made more standard icons available.
294 * [183525] Fixed issue that caused QCOMPARE to give incomplete
295 information when comparing two string lists.
296 * [193456] Ensured that nmake install for QTestLib copies the DLL into the
300 * [224233] Ensured that QCoreApplication::arguments() skips the
301 -stylesheet argument.
304 * [222937] QDate - fixed issue preventing a minimum date of 01-01-01
308 * [230777] Fixed a bug that would cause skipRawBytes() to go
309 backwards if the correct resulting position was larger than 2 GB.
312 * [196924] Improved QDateTimeEdit's usability. It now skips ahead to the
313 next field when input can't be valid for the current section.
316 * [211797] Added support for the GetAll call in the standard
317 org.freedesktop.DBus.Properties interface.
318 * [229318] Fixed race conditions caused by timers being deleted in
322 * [237398] Ensured that, on Mac OS X, returned paths do not have a
326 * [244004] Fixed a coordinate issue on Mac OS X with multi-screen setups
327 where the screen sizes differ.
330 * [214987] Ensured that maximize buttons are not put on dialogs by default
334 * [224781] Dialog buttons without icons now get the same height as dialog
335 buttons with icons to maintain the alignment.
338 * [237438] Fixed a crash in setFloat() for parentless dock widgets.
339 * [204184] Subclasses are now allowed to handle mouse events.
340 * [173854] Ensured that the size of the dock widget is remembered when it
344 * [212446] Ensured that a new line inserted after an element that
345 indicates whitespace is preserved.
348 * [226681] Fixed issue that caused specified() to return false if the
349 attribute is specified in the XML.
352 * Added more debug operators for common event types.
355 * [221702] Fixed issue with testFlag() that gave a surprising result on
356 enums with many bits.
359 * [240759] Fixed crash in QFormLayout that could occur when a layout was
363 * [238027] Fixed a bug that would cause QFile not to be able to map a file
364 to memory if QFile::open() was called with extra flags, like
365 QIODevice::Unbuffered.
368 * [166546] Fixed QFileInfo operator== bug involving trailing directory
372 * [240823] Fixed issues with file paths over 270 characters in length on
374 * [212102] Fixed ".." directory issue.
375 * [241213] Fixed some problems when renaming files.
376 * [232613] Fixed a usability issue with UNC path on Windows.
377 * [228844] Fixed a wrong insertion in the filesystemModel that caused
378 persistant model index to be broken.
379 * [190145] [203703] Fixed a bug in getExistingDirectory() that returned
380 /home/ instead of /home, or on Windows, returned c:/temp/ instead of
381 c:/temp. We now match the native behavior.
382 * [236402] Fixed warning in the QFileDialog caused by deleting a directory
383 we have previously visited.
384 * [235069] Fixed issue that prevented QFileDialog from being closed on
385 Escape when the list view had focus.
386 * [233037] Fixed issue that caused the "Open" button to be disabled even
387 if we want to enter a directory (in AcceptSave mode).
388 * [223831] Ensured that the "Recent Places" string is translatable.
389 * Fixed crash on Windows caused by typing \\\ (empty UNC Path).
390 * [226366] Fixed issue that prevented the completer of the line edit from
391 being shown when setting a directory with lower case letter.
392 * [228158] Fixed issue that could cause the dialog to be closed when
393 pressing Enter with a directory selected.
394 * [231094] Fixed a hang that could occur when pressing a key.
395 * [227304] Fixed a crash that could occur when the dialog had a completer
396 and a QSortFilterProxyModel set.
397 * [228566] Fixed the layout to avoid cyclically showing and hiding the
399 * [206221] Ensured that the view is updated after editing a value with a
401 * [196561] Fixed the static API to return the path of the file instead of
402 the link (.lnk) on Windows.
403 * [239706] Fixed a crash that could occur when adding a name filter from
404 an editable combo box.
405 * [198193] Ensured that directory paths on Windows have a trailing
409 * [215772] Style sheets: Ensured that the shape of the frame is respected
410 when not styling the border.
413 * [223402] QFont's QDataStream operators will now save and restore the
417 * [225031] Fixed issue where QFontMetrics::averageCharWidth() could return
421 * [227271] Added support for old FTP servers that do not recognize the
422 "SIZE" and "MDTM" commands.
425 * [214874] Fixed deadlock issue that could occur when cascading QFutures.
428 * [231613] Fixed a crash that could occur when trying to create a
429 QGLContext without a valid paint device.
431 - QGLFramebufferObject
432 * [236979] Fixed a problem with drawing to multiple, non-shared,
433 QGLFramebufferObjects from the same thread using QPainter.
435 - QGraphicsEllipseItem
436 * [207826] Fixed boundingRect() for spanAngle() != 360.
438 - QGraphicsGridLayout
439 * [236367] Removed (0, 0) maximum size restriction of a QGraphicsItem by
440 an empty QGridLayout.
443 * [238655] Fixed slowdown in QGraphicsItem::collidesWithItem() that was
445 * [198912] ItemClipsChildrenToShape now propagates to descendants.
446 * [200229] Ensured that context menu events respect the
447 ItemIgnoresTransformations flag.
448 * Enabling ItemCoordinateCache with no default size now automatically
449 resizes the item cache if the item's bounding rectangle changes.
450 * [230312] Mac OS X: Fixed a bug where update() issued two paint events.
453 * [244402] Fixed issue that could cause a horizontal QGraphicsLinearLayout
454 to stretch line edits vertically.
456 - QGraphicsLayoutItem
457 * Fixed a crash that could occur with custom layouts which did not delete
461 * [236127] Fixed BSP tree indexing error when setting the geometry of
465 * [223403] Ensured that QGraphicsWidget(0, Qt::Popup) will close when you
467 * [236127] Fixed QGraphicsScene BSP tree indexing error.
468 * Improved rendering of window title bars.
469 * Fixed crash that could occur when a child that previously had the focus
470 died without having the focus anymore.
472 - QGraphicsProxyWidget
473 * [223616] Ensure that context menus triggered by ActionsContextMenu are
475 * [227990] Widgets are not longer resized/moved when switching themes on
477 * [219058] [237237] Fixed scroll artifacts in embedded widgets.
478 * [236545] Ensured that the drag and drop cursor pixmap is not embedded
479 into the scene on X11.
480 * [238224] Fixed a crash that could occur when a proxy widget item was
482 * [242553] Fixed drag and drop propagation for embedded widgets.
485 * [241475] Fixed update on geometry change.
488 * [240400] Fixed bugs in mouse press handling.
489 * [242331] Add tabChangesFocus() to let the user control whether the text
490 item should process Tab input as a character, or just switch Tab focus.
493 * [236453] Improved Tab focus handling (propagate Tab and Backtab to items
495 * [239047] Improved stability of fitInView() with a very small viewport.
496 * [242178] Fixed rubber band debris left in Windows XP style (potentially
498 * Fixed a crash in QGraphicsView resulting from the non-deletion of
500 * Fixed issue that caused items() to return an incorrect list with an
501 incorrect sort order when an item in the scene has the
502 IgnoresTransformations flag set to true.
503 * Ensured that the painter properly saves/restores its state after a call
505 * [197993] Allow any render hint to be set/cleared by the
506 QGraphicsView::renderHints property.
507 * [216741] Fixed handling of QGraphicsView::DontSavePainterState (broken
509 * [235101] [222323] [217819] [209977] Implemented proper font and palette
510 propagation in Graphics View.
511 * [238876] Fixed scroll artifacts in reverse mode.
512 * [153586] Ensured that the text cursor is drawn correctly in transformed
513 text controls in a QGraphicsView.
514 * [224242] Added support for embedding nested graphics views.
517 * [204823] Fixed a palette inconsistency when using certain styles.
520 * [239684] Fixed sorting that wouldn't happen when clicking unless the
521 sort indicator is shown.
522 * [236907] Fixed bug that could cause hidden columns to become visible.
523 * [215867] Resizing sections after moving sections could resize the wrong
525 * [211697] Fixed ResizeToContents to always show the full content of
529 * [240047] Fixed a problem with drawing/transforming sub-images.
532 * [138500] Added the QImageReader::autoDetectImageFormat() function.
535 * Added QKeySequence::SaveAs which has values for both GNOME and Mac OS X.
536 * [154172] Improved toString(NativeText) to return more native glyphs on
540 * [226479] Fixed update if showing a QMovie that changes its size.
541 * [233538] Fixed behavior involving changing the color of a label with a
542 style sheet and pseudo-state.
545 * [179777] Ensured that PasswordEchoOnEdit shows asterisks correctly.
546 * [229938] Fixed issue that could cause textChanged() to be emitted when
547 there was a maximum length set, even though the text was not changed.
548 * [210502] Fixed case-insensitive inline completion.
551 * [241464] Fixed issue that could cause intersects() to be numerically
552 unstable in corner cases.
553 The function has been rewritten to be faster and more robust.
556 * [217070] Fixed issue that could cause scroll bars to appear in adjusted
558 * [210733] Made improvements in the way the pagestep is computed.
559 * [197825] Ensured that hidden items are not selectable.
562 * Added new removeServer() static method to allow the socket file to be
563 deleted after an application has crashed.
566 * [232298] Draw the sort indicators in the correct direction for table
568 * [198372] Give context sub-menus the correct mask.
569 * [209103] [232218] QToolButton::DelayedPopup is now displayed correctly.
570 * [221967] Bold header text now uses the correct color.
571 * [234491] Also the menu's QFont when when drawing menu items.
572 * Ensure the proper pressed look for tabs on Leopard.
575 * [192392] Stop excessive updates with unified toolbars when changing the
576 enabled status of an action.
577 * [195259] Ensured that the toolbar button is shown when the unified
578 toolbar is created later.
581 * [224094] Fixed crash that could occur when specifying a default button
582 that was not one of the buttons listed.
583 * [223451] Fixed a memory leak on a static pointer when the application
587 * [224116] [228995] [228738] save/restoreState() would not always restore
588 the toolbars in the correct positions.
589 * [215430] Fixed issue that meant that the user could dock widgets and
590 they wouldn't be tabbed even if ForceTabbedDocks was set.
591 * [240184] Fixed an issue that caused QDockWidget to get smaller and
592 smaller by docking and undocking.
593 * [186562] Fixed layout when saving the state with an undocked dock widget
594 and then restoring it
595 * [228110] Re-adding a toobar now also re-docks it.
596 * [232431] Fixed a memory leak caused by setting centralWidget multiple
600 * [220965] [222978] Style sheets: Made it possible to set border and
604 * [228658] Fixed broken activated signal behavior.
605 * [233622] Fixed the repaint when a dialog is invoked
608 * [233264] Mac OS X: Improved performance when dragging sub-windows
610 * [233267] [234002] [219646] Removed flickering behavior that could occur
611 when switching between maximized sub-windows.
614 * [235584] Fixed a bug that would cause sslConfiguration() to
615 return a null object if finished() had already been emitted.
618 * [244918] Fixed a problem with drawing text and polygons onto software
619 rendering GL contexts.
622 * [234220] Fixed crash due to a division by zero function in
626 * [226315] Fixed an assert when trying to load picture files created with
630 * [223800] Fixed a bug where grabWindow() on a QScrollArea did not work
632 * [217815] Fixed a bug where grabWidget() did not work properly for
633 resized and hidden widgets.
634 * [229095] Mac OS X: Fixed issue that could cause grabWindow() to grab the
635 wrong parts of the window for child widgets.
638 * [195446] Ensured that the background is now painted on selected but
639 disabled menu items for improved keyboard navigation.
640 * [231660] Fixed support for custom icon size in tab bars.
641 * [211679] drawPartialFrame() now passes the widget pointer.
644 * QPainter::font(), brush(), pen(), background():
645 These functions will return default constructed objects when the
647 * [242780] Fixed segmentation fault that could occur when setting
648 parameters on an uninitialized QPainter.
649 * [89727] Added support for raster operations.
650 * [197104] More well-defined gradient lookup (linear gradients are now
651 perfectly symmetric if inverting the color stops).
652 * [239817] Fixed bug where overline/strike-out would be drawn with the
653 wrong line width compared to the underline.
654 * [243759] Fixed some off-by-one errors in the extended composition modes
655 in the raster paint engine.
656 * [234891, 229459, 232012] Fixed some corner case bugs in the raster paint
657 engine line/rectangle drawing.
658 * Fixed the "one pixel less" clipping bug caused by precision lost when
660 * Fixed the composition mode in QPainter raster which was not properly set.
661 * Fixed an assert when the painter is reused after a previous bad usage
662 (e.g., painting on a null pixmap).
665 * Added convenience operators: +, -, &, |, +=, -=, &= and |=.
668 * [232415] Fixed a problem that caused a an invalid QPrinter
669 object to not update its validity after being passed into a
671 * [215401] Fixed the size of the Executive paper format.
672 * [202113] Improved speed when printing to a highres PostScript printer.
673 * [195028] Trying to print to a non-existing file didn't update the validity
674 of the QPrinter object correctly.
675 * [134820] Support CUPS printer instances on Unix systems (Mac and X11).
676 * [201875] Fixed a bug that caused the fill opacity of a brush to be used
677 for the stroke in certain cases.
678 * [222056] Fixed absolute letter spacing when printing.
679 * [234135] Fixed a problem with custom margins for CUPS printers.
682 * [232207] When printing to a Qt .pdf or .ps printer under Windows or
683 Mac OS X, pop up a file dialog instead of the native print dialog.
685 - QPrintPreviewDialog
686 * [236418] Fixed a problem that caused opening several QPrintPreviewDialogs
687 and printing to them at the same time crash.
690 * [230929] (Unix) Open redirection files in 64-bit mode wherever supported.
693 * [215050] Properly stop internal timer that retriggered for no reason.
696 * [216911] stylesheet bug if minimum value != 0
697 * [222872] Use the orientation when determining if we should repaint.
700 * [235761] Fixed navigation with arrow keys when buttons are in different layout
703 * [200586] Make QRegion a lot smarter when converting from a QPolygon, to avoid
704 creating a lot of needless rectangles.
705 * For Mac OS X, add QRegion::toQDRgn(), QRegion::toHIMutableShape() and
706 corresponding ::fromQDRgn() and ::fromHIShape(). The ::handle() is still
707 available for 32-bit Mac OS X builds and is the equivalent of ::toQDRgn().
710 * [206497] Stylesheet: It's now possible to style the corner with ::corner
713 * [230253] Simple stylesheets doesn't break the scrollbar anymore.
716 * [191901] Added methods setIniCodec() and iniCodec() for changing the codec of .ini files.
719 * Don't deadlock when locking an already-held lock.
721 - QSortFilterProxyModel
722 * [236755] Hidden columns in QTableView could become visible
723 * [234419] Fixed a data corruption when adding child and row is filtered out
726 * [189980] Ensure OpenSSL_add_all_algorithms() is called.
729 * [186084] Fixed a bug that would cause timezones in certificate
730 times not to be parsed correctly, leading to valid certificates
734 * [237535] Fixed a bug that would cause QSslConfiguration objects
735 to leak memory and eventually corrupt data due to wrong
739 * [227426] Fixed drag and drop of hierarchy
740 * [242918] Added ability to change flags of the root item.
743 * [205837] Qt 4.4: format string warnings / small QString conversion
747 * [226522] Fixed fill-opacity when fill is a gradient.
748 * [241357] Fixed gradients with two or more stop colors at the same offset.
749 * [180846] Fixed small font sizes.
750 * [192203] Add support for gzip-compressed SVG files.
751 * [172004] Respect the text-anchor attribute for embedded SVG-fonts.
752 * [199176] Ensure QSvgGenerator handles fractional font sizes
753 * [151078] Fix parsing of embedded fonts in files that have <metadata> tags
756 * [195943] QSystemTrayIcon now accepts right mouse clicks on Mac OS X.
757 * [241613] Hide the tooltip when open the menu on Mac OS X.
758 * [237911] Only emit QMenu::triggered once on Mac OS X.
759 * [196024] Make it possible to disable context menus on Mac OS X.
762 * [213374] Fixed position of label in vertical bar with stylesheet
765 * [177665] Added QScriptEngine::checkSyntax(), which provides information
766 about the syntactical (in)correctness of a program.
767 QScriptEngine::canEvaluate() has been obsoleted.
768 * [192955] Added the ability to exclude the QObject::deleteLater() slot
769 from the dynamic QObject binding, so that scripts can't delete
771 * [212277] Fixed issue where the wrong prototype object was set when a
772 polymorphic type was returned from a slot.
773 * [213853] Fixed issue that could cause events to be processed less
774 frequently than what's set with QScriptEngine::setProcessEventsInterval().
775 * [217781] Fixed bug that caused the typeof operator to return "function"
776 when applied to a QObject wrapper object.
777 * [219412] Fixed bug that could cause the in operator to produce wrong results
778 for properties of Array objects.
779 * [227063] Fixed issue where a break statement caused an infinite loop.
780 * [231741] Fixed bug that could cause the implementation of the delete
782 * [232987] QtScript now calls QObject::connectNotify() and
783 QObject::disconnectNotify().
784 * [233346] Fixed issue where the garbage collector would not be triggered when
785 very long strings were created, causing excessive memory usage.
786 * [233624] Fixed bug that caused enums in namespaces to be handled incorrectly.
787 * [235675] Fixed issue where creating a QScriptEngine would interfere with
788 ActiveQt's QVariant handling.
789 * [236467] Fixed bug that caused QtScript to treat a virtual slot redeclared by
790 a subclass as an overload of the base class's slot.
791 * [240331] Fixed bug that caused QtScript to crash when one of the unary
792 operators ++ and -- was applied to an undefined variable.
793 * If a signal has overloads, an error will now be thrown if you try to connect
794 to the signal only by name; the full signature of a specific overload must
796 * Added support for multi-line string literals.
797 * Added QScriptEngine::setGlobalObject().
798 * Made it possible to use reserved identifiers as property names in
799 contexts where there is no ambiguity.
802 * [235173] Fixed a bug that would cause QTcpSocket re-enter
803 select(2) with an uninitialized timer (when the first call got
804 interrupted by a signal).
807 * [244408] Fixed regression in QTextCursor::WordUnderCursor behavior.
810 * [227865] QTextCodec::codecForIndex(int) broken in Qt3Support
813 * [164503, 232857] Fixed issues where using NoWrap caused
814 selection/background colors to not cover full width of text control.
815 * [186044] Fixed whitespace handling when copying text from Microsoft Word
817 * [228406] Fixed parenthesis characters with RTL layout direction on
819 * [189989] Fixed QTextEdit update after layout direction change.
822 * [210933] It is now possible to specify a locale which
823 QTextStream should use for text conversions.
826 * [193511] Fixed stylesheet on undocked toolbar
827 * [226487] Fixed the layout when the QMainWindow as a central widget with
829 * [220177] Fixed the layout not taking the spacing into account
832 * [222578] Fixed issues with checked and disabled tool buttons in some
834 * Tool button now allows independent hover styling on it's subcontrols.
835 * [167075] [220448] [216715] Polished stylesheet color, background, and
837 * [229397] Fixed regression against Qt3 where setPopupDelay(0) did not
841 * [228416] Fixed style sheet tooltips on windows.
844 * [220494] scrollTo() didn't scroll horizontally if the vertical bar was
845 already at the correct position.
846 * [216717] Fixed update when children are added.
847 * [225029] Fixed bug that prevented focus from being shown for
848 non-selectable items when allColumnsShowFocus is set to true.
849 * [226160] Fixed hit detection when first column is moved.
850 * [225539] Fixed a crash when deleting the model.
851 * [241208] Fixed animation when using persistent editors.
852 * [202073] Fixed visualRect which would not take the indentation into
853 account when 1st column is moved.
854 * [230123] Item can no more be expanded with keyboard if
855 setItemsExpandable has been set to false.
858 * [243165] selectAll didn't work before the widget was shown
859 * [238003] setCurrentItem would not expand the parent item
860 * [223130] Fixed drag&drop when sort is enabled that would only drop the
862 * [223950] Only allow to drag items when they have the
863 Qt::ItemIsDragEnabled flag set.
864 * [218661] Made sure our internal model can pass the "modeltest" test
866 * [217309] Fixed issue that caused data() for CheckStateRole to return
867 Checked even if some children were partially checked.
868 * [229807] Fix a redrawing problem when scrolling with a different palette
869 role set on Mac OS X.
870 * [236868] Prevent a crash when dragging an item hidden by a tooltip on
874 * Added support for narrow format for day and month names.
875 * Day and month names can now also be fetched as a standalone text.
878 * Values of type QBool are now properly outputted with QDebug.
881 * [227714] Don't crash when owner group is deleted.
884 * [204981] Made the QUrl tolerant parser more tolerant
885 * Fixed a bug in QUrl's tolerant parsing of stray % characters
886 (not part of %HH sequences), which would cause it to make the
888 * [227069] Fixed a bug that would cause QUrl to not parse URLs
889 whose hostnames start with an IP address (like
890 http://1.2.3.4.example.com)
891 * [230642] Fixed a bug that made QUrl not properly produce proper
892 URLs with relative paths
893 * Modified QUrl to not normalize %HH in URLs unless strictly
894 necessary. QUrl now keeps the original %-encoding of the input
895 unless some operation is executed in the QString
896 components. This also allows for %2f to exist in path components.
899 * [215610] prevented assertion when reading from an invalid QDataStream.
902 * [222323] [217819] [209977] Improve Qt's font and palette propagation.
903 * [218568] Revert and reopen task 176809 ("when using
904 Qt::PreventContextMenu policy, the context key menu is still not sent to
906 * [220502] Ensure that setWindowFilePath() when called with an empty
907 string clears the proxy icon in Mac OS X.
908 * [240147] Enforce exclusivity between the Qt::WA_(Normal|Small|Mini)Size
909 * [168641] Ensure that tablet releases go to the correct widget on X11 and
910 Carbon (i.e., the widget that received the press).
911 * [192565] Fixed a problem with calling QWidget::render(), using a
912 QPrinter as a paint device.
913 * [236565] [168570] Fix regression on X11 where QWidget::restoreGeometry()
914 would restore incorrect geometry if the window was maximized when saved.
915 * [201655] Fix QWidget::scroll() acceleration issue with child widgets on
917 * [210734] [210734] Fixed a bug where changing the visibility of alien
918 widgets did not generate proper enter/leave events.
919 * [228764] Major improvement of scroll performance.
920 * [238258] [229067] [239678] Flickering with widgets larger than
921 4096x4096 pixels in size.
922 * [141091] Added full support for Qt::WA_StaticContents.
923 * [238709] Fixed a bug where calling clearMask() did not update the view
925 * [213512] Fixed clipping issue with Qt::WA_PaintOutsidePaintEvent widgets.
926 * [230175] Added support for calling render() recursively.
927 * [238115] Fixed painting issues after calling winId().
930 * [210069] Fixed a bug in the drawing of comboboxes.
933 * [221668] Respect background color role for item views.
934 * [227360] Current item now gets focus for multiselection views.
935 * [224251] Fixed incorrect painting of inverted and reversed progress
937 * [207836] Fixed a problem with vertical toolbar separators.
938 * [202895] Fixed problem where indeterminate progress bars were not
939 animated when Vista animations were explicitly disabled.
940 * [200899] Message box buttons are now right aligned.
943 * [207242] Fixed a static memleak.
944 * [206418] Fixed missing focus rect on tool buttons.
945 * [188850] Fixed a problem with offsets for sliders.
946 * [110091] Tool buttons with arrows are not styled using black
947 windows arrows due to consistency issues with the native theme.
950 * [204643] Make sure the maximum size of QWizard is computed properly.
953 * [125281] fixed active child to be the same when minimizing and restoring
957 * ACID3 score 100 out of 100.
958 * Added support for plugins using Netscape Plugin API (NPAPI) for Windows,
960 * [211228] Fixed invisible focus rectangle on push buttons.
961 * [211256] Fixed dragging an image from the web view.
962 * [211273] Fixed static build of Qt with QtWebKit.
963 * [213966] Fixed wrong placement of native widget plugins after scrolling.
964 * [214946] Ensured native plugin instances are deleted properly.
965 * [217574] Fixed cursor problem on text input field after focus change.
966 * [218957] Fixed rendering of form elements when using Windows style.
967 * [219344] Added a remark that some web actions have an effect only
968 when contentEditable is true.
969 * [220127] Fixed mouse right click still allowed for disabled view.
970 * [222544] Added an option to print background elements.
971 * [222558] Fixed input method does not work after changing the focus.
972 * [222710, 222713] Fixed issues with TinyMCE editor.
973 * [223447] Ensured that CSS with relative path works on Windows.
974 * [224539] Fixed linkClicked() emitted only once for local anchor URLs.
975 * [225062] Fixed links do not work for QWebView embedded in QGraphicsScene.
976 * [227053] Fixed problem with percent encoded URLs.
977 * [230175] Fixed video rendering when embedded in Graphics View.
978 * [235270] Showed module name when plugin loading fails.
979 * [238330] Prevented multiple instantiation of native widget plugin.
980 * [238391] Prevented crash when printing to file is cancelled.
981 * [238662] Fixed function keys are not mapped.
982 * [241050] Implemented proper painting of CSS gradient.
983 * [241144] Ensured proper actions for some web action types.
984 * [241239] Ensured plugins are not loaded when disabled.
985 * [231301] Fixed an issue on Windows mobile when switching between input
989 * [238902] Q3ButtonGroup now looks for children recursively rather than
990 just the direct children like it did in Qt 3.
991 * [200764] Fixed insertion of buttons with IDs in arbitrary order.
994 * [230979] Fixed a crash after a resize and drag on scroll bars.
997 * [240766] Crash while resizing the window while updating layouts.
1000 * [225648] Fixes infinite update.
1003 * [132254] Fixed incorrect painting when totalSteps = 0.
1004 * [231137] Fixes progress bar disappearing if you set a style sheet to the
1008 * [224095] Fixed white space inside palette().
1009 * Fixed setting style on the application may change the appearance of some
1011 * [209123] Fixed Stylesheets causing unnecessary paint events on
1012 enterEvent() and leaveEvent().
1013 * [209123] Fixed setting gradient background to custom widget.
1016 * [223539] Summary: "node" and other typekind keywords are not allowed as
1017 an element name when part of for loop.
1020 * [207024] Added the QXmlStreamAttribute::hasAttribute() function.
1021 * [231516] Regression: QXmlStreamWriter produces garbage in "version"
1022 attribute of XMLDeclaration.
1024 ****************************************************************************
1025 * Examples and demos *
1026 ****************************************************************************
1028 - Pad Navigator example
1029 * [236416] Provide a minimum window size for this example.
1030 * [208616] No longer builds in console mode on Windows.
1032 - Diagram Scene example
1033 * [244996] Fix crash when changing the font of a text item and then
1036 ****************************************************************************
1037 * Database Drivers *
1038 ****************************************************************************
1044 ****************************************************************************
1046 ****************************************************************************
1048 - QTestLib now supports writing benchmarks.
1049 - Fixed an issue where tests returned exit code 0, even though tests
1050 failed in some rare cases.
1052 ****************************************************************************
1053 * Platform Specific Changes *
1054 ****************************************************************************
1057 * Made the iconv-based QTextCodec class (the "System" codec on
1058 Unix systems that support it) stateful. So it's now possible to
1059 feed incomplete multibyte sequences to the toUnicode function,
1060 as well as the first character in a UTF-16 surrogate pair.
1063 * Added a QGtkStyle to integrate with GTK+ based desktop environments.
1064 * If font config is used the default font-substitutions will no longer be
1065 used instead we rely on fontconfig to determine font substitutions as
1067 * Improved support for KDE4 desktop settings.
1068 * [214071] Improved support for custom freedesktop icon themes.
1069 * [195256] Use FreeType's subpixel filtering if available, thus honoring
1070 Font Config's LCD filter settings.
1071 * Added supported for XFIXES X11 extension for proper clipboard
1072 support when non-Qt application owns the clipboard.
1073 * Icon support for top level windows (_NET_WM_ICON) was improved
1074 to support several icons with different sizes.
1075 * [211240] In some cases QFileSystemWatcher didn't notify about
1076 files that were moved over another files.
1077 * [238743] Added support for the _NET_SYSTEM_TRAY_VISUAL property
1078 to use the same visual the system tray manager asks us to use.
1079 * [229593] Fix font matching with old fontconfig versions.
1080 * [167873] Proper event compression for mouse events when using tablets.
1081 * [208181] Fix averageCharWidth to be consistent for y!=x ppem
1082 * [229070] Fix QPrintDialog assertion
1083 * [211678] Fixed a problem with drawing a QPixmaps on different X11
1085 * [221362] Fixed a problem where pixmaps only appeared on the first page
1087 * [232666] Fixed a problem with custom page sizes for CUPS printers.
1088 * [228770] Fixed a problem that caused the .ps and .pdf filename
1090 to not update in the CUPS printer dialog when printing to file.
1091 * [230372] Fixed a problem where the number of copies set on a QPrinter
1092 object wasn't picked up and updated properly in a QPrintDialog.
1095 * Cleartype rendering was previously supported onto QImages with
1096 an ARGB32 channel. For performance reasons, cleartype is now
1097 only supported on opaque images using the RGB32 or
1098 ARGB32_Premultipled format. Widget and pixmap rendering is
1100 * [175075] Antialiased font rendering quality has been greatly improved
1101 by taking gamma correction into account. We should now match the native
1102 Windows font rendering better, and the fonts look better in general when
1103 drawing fonts on different backgrounds.
1104 * [221132] Fixed a problem with System Tray menu visibility.
1105 * [221653] Fixed a problem incorrectly causing a Task Bar status change.
1106 * [202890] Improved platform consistency with spacing in menus.
1107 * [157323] QCombobox now slides to open on relevant platforms.
1108 * [237067] Calling showMessage on QSystemTrayIcon with empty arguments
1109 now hides the current message.
1110 * [145612] Setting an object name for a QThread sets the name that
1111 is visible in the debugger for more easy debugging
1112 multi-threaded application.
1113 * [216664] QLocale now follows the current system locale when the
1114 user changes it in the Windows Control Panel.
1115 * [223921] Fix writing system detection of TrueType fonts added
1116 via a QByteArray in QFontDatabase::addApplicationFont on Windows.
1117 * [205455] 'mailto:' links works properly with QDesktopServices::openUrl().
1118 * [205516] standardPalette() now returns the system palette for XP and
1120 * [207506] Fixed an issue which switches the alignment for input widgets
1122 * [223951] Added support for VARIANT with IDispatch in ActiveQt.
1123 * [224910] Fixed a crash when using the Hierarchy ActiveQt example.
1124 * [201223] 'dumpcpp' now prepends the 'classname_' to resolve conflicts.
1125 * [198556] QAxServer registering now takes care of '.' before MIME
1127 * [223973] Fixed a deadlock in QLocalSocket.
1128 * [193077] Fixed activation of ActiveQt widgets in MFC MDI applications.
1129 * [238273] Fixed a crash while editing QTableView using japanese IME.
1130 * [238672] Fixed a crash when deleting a widget while dragging.
1131 * [241901] ActiveQt now supports [out VARIANT*] parameters.
1132 * Fix a GDI object leak on the qfileiconprovider.
1133 * [200269] Application and systray icons on Windows that had an alpha
1134 channel were not drawn correctly.
1135 * [239558] Fix a possible crash when reading XPM data containing trigraphs
1136 with the Microsoft compilers.
1137 * [204440] Fixed a problem with software rendering contexts on Windows,
1138 which might have caused rendering errors due to to unresolved extension
1140 * [232263] Fixed a problem with binding textures to a software context
1142 * [238715] Fixed a problem with alpha-blended cursors under Windows.
1143 * [227297] and [232666] Fixed some problems with custom paper
1144 sizes under Windows.
1145 * [217259] The default printer wasn't correcly detected with some versions
1147 * [212886] Fixed a problem with network printers not being listed by
1148 the QPrinterInfo::availablePrinters() function under Windows.
1149 * [205985] Fixed a problem with reusing a QPrinter object to print several
1150 jobs with the Microsoft XPS printer driver.
1151 * [196281] Fixed QPrinter::setPrintRange() to work under Windows.
1154 * Support for QLocalSocket and QLocalServer added.
1155 * QtWebKit and Phonon are now supported.
1156 * One can mark a widget with the attribute WA_ExpectsKeyboardInput
1157 to automatically display / hide the standard input panel on focus
1159 * [223523] Reimplementations of standard library functions filled the
1160 global namespace causing problems when linking statically to other third
1161 party libraries using the same attempt.
1162 * Support for using OpenSSL with Qt on Windows CE
1165 * Added the macdeployqt tool that simplifies application deployment.
1166 * Improved support of widget stylesheet in Mac.
1167 * [218980] - Stacking order of windows and dialogs is fixed, such that
1168 dialogs always floats above normal windows, even when the dialog is told
1169 to behave as a window.
1170 * [219844] - A crash that occurred when using the search buttons on a
1171 native file dialog is fixed.
1172 * [225705] - FileDialog filters not displaying correctly is fixed.
1173 * [239155] - Pop-ups will now close when clicking on a window other than
1174 the modal window that opened the pop-up.
1175 * [210912] - Show event not sent when reshowing a window from minimized
1177 * [228017] - QMenu will now close when expanding a system menu.
1178 * Added support for Qt to use Cocoa as its backend instead of Carbon. This
1179 is primarily for 64-bit applications, but is also available for 32-bit
1180 frameworks as well. 32-bit is still Carbon by default. Passing a 64-bit
1181 architecture or -cocoa on the command-line will build Qt against Cocoa.
1182 Using Cocoa requires Mac OS X 10.5 (or higher) and cannot be used with
1183 the -static nor -no-frameworks option. The define QT_MAC_USE_COCOA is
1184 available when Qt is built against Cocoa.
1185 * Fix a bug that would prevent a window that had been maximized via
1186 setMaximized() to go back to normal size when clicking on the window's
1188 * Added QMacCocoaViewContainer for embedding Cocoa (NSView) controls into
1189 a Qt hierarchy. This feature works for either Carbon or Cocoa, but
1190 requires Mac OS X 10.5 or greater.
1191 * Added QMacNativeWidget for embedding Qt widgets into non-Qt windows
1193 * Added MacWindowToolBarButtonHint for controlling whether or not the
1194 toolbar button is shown in Qt windows.
1195 * QEvents posted via QEventLoop::postEvent() are now treated as a standard
1196 event loop source, like timers and normal input events. This means that
1197 is should no longer be necessary to run a busy loop to sendPostedEvents()
1198 when QApplication is not the main event loop (e.g. when using Qt in a
1200 * [239646] Shortcuts for sub-menu are now disabled when the menu item is
1202 * [241434] Honor the LSBackgroundOnly attribute if it exists in the
1203 application's Info.plist.
1204 * [239908] More robustness when encountering different types in reading
1206 * [234742] Add support Qt::XButton1 and Qt::XButton2.
1207 * [236203] Much better support for loading multiple Qt's with different
1209 * Add Qt::AA_MacPluginApplication that allows bypassing some native menu
1210 bar initialization that is usually not desired when running Qt in a
1212 * [205297] Applications Dialogs are now marked as application modal in
1214 * Tooltip base is now set correctly in the application palette.
1215 * [222912] [241603] Qt applications no longer reset their palette back to
1216 the system palette on every application activate. Only if the values
1217 from the system are different from the last time. This should result in
1218 custom palette colors/brushes being kept across application activations.
1219 * [211758] Fixed a clipping problem when printing multiple pages on a Mac
1221 * [212884] Fixed a crash when printing images on Mac OS X.
1222 * [219877] Fixed a problem with a QPrinter object not being valid after
1223 setting the output format to PDF or PostScript.
1224 * [229406] Fixed crash when display mirroring gets enabled.
1225 * [189588] Fixed a bug where QColorDialog::getColor(...) always returned a
1228 Qt for Embedded Linux
1230 * The SVGAlib driver is no longer supported, due to architectural changes.
1231 * [235785] Detect VGA16 video mode and warn that it is not supported.
1233 - Mouse and keyboard drivers
1234 * [243374] Fixed bug where PC mouse driver could not be loaded when
1235 configured as loadable plugins.
1236 * Added Linux Input Subsystem mouse and keypad drivers
1239 * [242922] Run as server by default when compiled with the
1240 QT_NO_QWS_MULTIPROCESS macro defined.
1241 * Fixed bugs where wrong cursor would be shown in some cases.
1242 * Respect min/max size on initial show also for windows without a layout.
1243 * Fixed loading of font plugins when QT_NO_FREETYPE is defined.
1244 * Autodetect PowerPC in configure.
1245 * Add support for precompiled headers.
1247 ****************************************************************************
1248 * Compiler Specific Changes *
1249 ****************************************************************************
1251 ****************************************************************************
1253 ****************************************************************************
1256 * [218795] add support for -nomake configure option on Windows to
1257 exclude build parts like on other platforms
1258 * The -tablet configure option on X11 was renamed to -xinput
1259 * [136723] Have moc issue a warning if a Q_PROPERTY declaration does not
1260 contain a READ accessor function.
1261 * [188529] Fixed bug that caused moc to get stuck in an infinite loop if
1262 two files included eachother and the include path had the prefix "./".
1263 * [203379] Changed moc code generator so that lint no longer reports
1264 problems with the generated code.
1265 * [210879] moc no longer generates any implementation for pure virtual
1267 * [234909] Fixed bug that caused moc to treat /*/ as a full C comment.
1272 * Added filter widgets in Widget Box and Property Editor.
1273 * Added layout state display to Object Inspector.
1274 * Enabled changing the layout type of laid-out containers.
1275 * Added handling of spanning QFormLayout columns.
1276 * Added convenience dialog to quickly populate QFormLayouts.
1277 * Added support for embedded device design profiles.
1278 * Changed the selection modifiers to comply to standards; enabled
1279 rectangle selection using the middle mouse button; added
1280 shift-click-modifier to cycle parents when selecting.
1281 * Added "translatable" flag and disambiguation comment to string
1283 * Added attribute editors to item-based widgets.
1284 * Changed QUiLoader to use QXmlStreamReader instead of QDom.
1285 * Ui files with unknown elements are now rejected.
1286 * [123592] While dropping a dock widget a main window - make the dock
1288 * [126269] Added the ability to morph widgets into compatible widgets.
1289 * [126997] Added support for QButtonGroup.
1290 * [145813] Added a listing function to obtain the available layouts to
1292 * [155837] Added support for QWizard.
1293 * [164520] Added automatic detection of changes to the qrc resource files
1294 from external sources.
1295 * [166501] Added "translatable" checkbox to string properties making it
1296 possible to exclude it from the translation.
1297 * [171900] Indicate Qt 3 compatibility signals and slots using a different
1299 * [173873] Position pasted widgets at mouse position if possible.
1300 * [183637] Introduced Widget Box "Icon view" mode to reduce scrolling,
1301 available via context menu.
1302 * [183671] Added automatic retranslation upon language change of UIs
1303 loaded via QUiLoader.
1304 * [185283] Added incremental search facility to Object Inspector.
1305 * [191789] Added pkgconfig-Files for Qt Designer libraries.
1306 * [198414] Enabled promotion of QMenu/QMenuBar by object inspector context
1308 * [201505] Extended QDesignerIntegration::objectNameChanged() to pass on
1310 * [202256] Fixed action editor and object inspector not to resize header
1311 when switching forms.
1312 * [211422] Fixed QScrollArea support to handle custom QScrollArea widgets
1313 with internal children.
1314 * [211906] Enable promotion of unmanaged widgets by object inspector
1316 * [211962] Enabled widgets to span columns in a QFormLayout.
1317 * [212378] Made the rich text editor dialog, the plain text editor dialog
1318 and the style sheet editor dialog remember their geometry.
1319 * [213481] Fixed a crash while form loading by preventing it from
1320 adding layouts to unknown layout types.
1321 * [219381] Fixed Action editor to reflect changing the shortcut in the
1323 * [219382] Added tooltip, checkable and shortcut properties to the action
1325 * [219405] Added support for the stretch and minimum size properties of
1326 QBoxLayout and QGridLayout.
1327 * [219492] Added an icon preview to the resource image file dialog on X11.
1328 * [220148] Fixed handling of the QMainWindow::unifiedTitleAndToolBarOnMac
1330 * [223114] Fixed a crash on removing a dynamic QUrl property.
1331 * [229568] Added Q3ComboBox.
1332 * [230818] Fixed a bug which caused duplicate names to occur when
1333 copying & pasting spacers.
1334 * [233403] Fixed a painting bug which caused red line layout markers to
1335 disappear depending on grid settings.
1336 * [233711] Added a warning when saving a container-extension-type
1337 container with unmanaged pages.
1338 * [234222] Fixed a bug which caused the autoFillBackground property to be
1339 reset during Drag and Drop operations.
1340 * [234326] Fixed the QDesignerIntegration::objectNameChanged() signal to
1342 * [236193] Fixed a crash caused by invalid QSizePolicy values resulting
1343 from Qt 3 conversion.
1344 * [238524] Ignore constructor-added items of custom widgets inheriting
1346 * [238707] Fixed pkgconfig file generation to honour -qt-libinfix.
1347 * [238907] Disabled reordering of Spacers and Layouts causing uic to
1348 warn "<name> isn't a valid widget".
1349 * [232811] Correctly show empty string values in preview.
1350 * [214637] Single click expands/collapses classes in property editor
1351 * [241949] Update the object inspector properly in case of undoing a
1352 reparent widget command.
1355 * Ui files with unknown XML elements are now rejected.
1356 * [220796] Added code for adding items to widgets of class Q3ComboBox.
1360 * [231911] Fixed the conversion of boolean font attributes.
1361 * [233802] Fixed -extract option on Windows.
1362 * [236193] Fixed the conversion of QSizePolicy's "Ignored" value.
1368 * Much improved form preview tool
1369 * Removed translations column from message index for it being useless.
1370 * Phrasebooks have language settings now
1371 * [141788] Support translating into multiple languages simultaneously.
1372 * [183210] Whitespace is now visualized
1373 * [182866] Font resizing in translation textedits
1374 * [187765] Support opening files via Drag & Drop
1376 - Entire Linguist toolchain
1378 - [201713] Add support for specifying the source language.
1382 * The .qm files now can be read back by the toolchain, not only Qt.
1383 * Added support for GNU Gettext .po files.
1385 - Qt's own .ts format
1387 * New element <extracomment> to store purely informative comments
1388 * New element <translatorcomment> to store comments from translators
1389 * New element wildcard <extra:*> to support user extensions
1390 * New elements <oldsource> and <oldcomment> to store values from
1391 before the last heuristic merge by lupdate
1395 * Parse //: and /*: */ comments as extra comments for translations.
1396 * Added support for new QT_TR*() macros.
1397 * Added support for QtScript.
1398 * Better error reporting.
1399 * More accurate processing of .pro files.
1400 * Added options -disable-heuristic, -nosort, -target-language,
1402 * [197391] Support for storing source code references with relative
1403 line numbers or no references at all. Omit line numbers from .ui file
1404 references at all. These reduce the size of patches and avoid merge
1405 conflicts. Option -locations.
1406 * [197818] Add support for UTF-16 encoded sources.
1407 * [209778, 222637] Somewhat improved C++ parser, in particular with
1408 respect to namespaces.
1409 * [218671] Accept Q_DECLARE_TR_FUNCTIONS.
1410 * [212465] Default context is now the empty string, not "@default".
1411 This codifies what previously was an intermittent bug.
1412 * [220459] Collect all source code references for each message.
1416 * New tool for converting between file formats and filtering file contents.
1421 * Added option to set style and palette settings back to system defaults.
1424 * [218928] [219127] [219132] [219482] Misc. updates to the porting replacement rules.
1426 ****************************************************************************
1428 ****************************************************************************
1433 ****************************************************************************
1434 * Important Behavior Changes *
1435 ****************************************************************************
1440 On Mac, native dialogs are now used when calling show, open, or exec
1441 on a QFileDialog, QColorDialog, QPrintDialog, or QFontDialog (i.e not
1442 only when using the static functions)
1444 QFileDialog/QFileSystemModel always return Qt separators ("/")
1445 regardless of the platform. It can still handle native separators for
1446 Windows. To convert the Qt separators to native separators use
1447 QDir::toNativeSeparators().
1450 Tab input is send to the document by default, inserting a <tab>
1451 character. You can get the old behavior of switching Tab focus by
1452 setting setTabChangesFocus(true) (QGraphicsTextItem's Tab handling now
1453 behaves identically to QTextEdit and QTextBrowser).
1456 QGraphicsView now propagates Qt::Key_Tab and Qt::Key_Backtab to the
1457 scene, which sends this to the items. Similar to how QWidget works,
1458 this event is caught in QGraphicsItem::sceneEvent() and
1459 QGraphicsWidget::event() to handle tab input. Tab input is also
1460 proxied to embedded widgets. This allows and item or widget to handle
1461 Tab keys (e.g., text input).
1464 The locale database was updated to the Unicode CLDR database
1467 When the system locale is changed, the LocaleChange event will
1468 be sent to all widgets that don't have a locale explicitely
1472 Starting with Qt 4.5, the base brush is used for the default
1473 background color of the web page. Before, it was the background
1477 Font and palette settings assigned to QWidget directly take
1478 precedence over application fonts and palettes.
1480 Focus policies that are set on a widget are now propagated to
1481 a focus proxy widget if there is one.
1483 Windows with fixed size (that are set with QWidget::setFixedSize()
1484 function or Qt::MSWindowsFixedSizeDialogHint window hint) might
1485 not have a maximize button on the titlebar.
1487 The behaviour of the window hints was changed to follow the
1488 documentation. When the Qt::CustomizeWindowHint is set, the
1489 window will not have a titlebar, system menu and titlebar
1490 buttons unless the corresponding window hints were explicitely
1493 Setting Qt::WA_PaintOnScreen no longer has any effect on
1494 normal widgets. The flag can still be used in conjuction with
1495 reimplementing paintEngine() to return 0 so that GDI or
1496 DirectX can be used, as previously documented.