787 lines
23 KiB
Groff
787 lines
23 KiB
Groff
****************************************************************************
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* Important Notices *
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****************************************************************************
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Meta-Object System
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------------------
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Qt 4.0.0 introduced a change to the way type names outside the current
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scope were handled in signals and slots declarations and connections
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which differed from the behavior in Qt 3.x.
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Unfortunately, this could lead to signal-slot connections that were
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potentially type-unsafe. Therefore, in Qt 4.0.1 type names must be fully
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qualified in signal-slot declarations and connections.
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For example, in Qt 4.0.0, it was possible to write:
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connect(socket, SIGNAL(error(SocketError)), ...);
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In Qt 4.0.1, the above connection must be made in the following way:
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connect(socket, SIGNAL(error(QAbstractSocket::SocketError)), ...);
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Library
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-------
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Support for SGI Altix has been added for both gcc and Intel icc.
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QX11EmbedContainer and QX11EmbedWidget are now exported classes.
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This change only affects developers using Qt/X11 with gcc >= 4.0 and
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symbol visibility enabled. Applications built against Qt 4.0.1 that
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use these classes cannot be linked against Qt 4.0.0.
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****************************************************************************
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* Changes *
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****************************************************************************
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Qt Designer
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-----------
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Fixed crash in designer when using fonts in custom widgets that
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don't have a point size set but use a pixel size instead.
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Fixed initial positions of the form windows in the MDI mode.
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Ensured that the object inspector is updated when a page is added
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to a widget stack.
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Ensured that the SDK is installed and the library symbols are
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exported.
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Fixed crash when breaking a layout after deleting all widgets within.
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Fixed handling of nested action groups.
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Fixed mouse handling to match user expectations on different
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platforms.
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Don't change system setting for double click interval.
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Disabled the richtext editor for the "statusTip" property.
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Improved widget handling, loading and saving for QFrame, QTabWidget,
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and Q3GroupBox.
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Added a platform-neutral mechanism for saving key sequences.
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Used Qt's list of supported image formats rather than an incomplete
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static list.
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Provided a way for plugins to access to the layout of container
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widgets.
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Added support for editable byte arrays.
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Qt Linguist
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-----------
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Made lupdate handle cases where the compiler converts strings using
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a different codec to that used by lupdate.
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Fixed bug in lupdate and lrelease's .pro file parser.
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Fixed lupdate's octal sequence handling.
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Fixed duplicate context when two contexts have the same hash value.
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Qt 3 to 4 Porting Tool
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----------------------
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Fixed connnect statement that did not work with the new stricter moc.
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Fixed incorrect porting of enum values in switch statements.
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Fixed header file name replacements in include directives.
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Meta Object Compiler (moc)
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--------------------------
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Fixed VC6 compilation of moc generated code with namespaced
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superclasses.
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Fixed parsing of functions that throw exceptions.
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Fixed compilation of moc generated code with VC6 when inheriting
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from classes inside namespaces.
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Improved the efficiency of signals with default arguments.
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Qt Assistant
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------------
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Fixed the document list for full text search indexing.
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Fixed case sensitive completion in the find dialog combobox.
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Re-enabled the "add content file" option.
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Removed the "General" tab in the settings dialog.
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Fixed registry key handling and deletion of cache files.
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Made it possible to read titles in the tabs in assistant.
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Updated the QAssistantClient documentation.
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Added the QtAssistantClient headers to the other library headers
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for installation.
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Fixed full text search for phrases.
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General Fixes
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-------------
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- Dialogs
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Removed hard-coded margin and spacing values from built-in
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dialogs.
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- QAbstractItemModel
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Fixed crash caused by removing an item with expanded children.
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Added some more see also links and defined QModelIndexList.
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- QAbstractItemView
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Fixed rendering and selection issues with MultiSelection
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mode.
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Improved handling of persistent editors.
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Improved performance of item insertion.
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Improved signal handling and emission.
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- QAbstractSlider
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Ensured that no changes occur if the orientation doesn't
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change in a call to setOrientation().
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Introduced better keyboard control for sliders.
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Fixed sliderPressed() and sliderReleased() signal emissions.
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- QAbstractSocket
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Fixed race condition in connectToHost().
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Made bytesAvailable() return the unget buffer size as well
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as the size of any pending data.
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Made NetworkLayerProtocol non-internal.
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- QAbstractSpinBox
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Fixed problems with locale and the "." and "," separators.
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Improved handling of extra whitespace at the beginning and
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end of user input.
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- QApplication
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Made closeAllWindows() respect windows that reject the close
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event.
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Fixed crash caused by calling QApplication::setStyle()
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before a qApp was created.
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Improved handling of the last open window for most cases.
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Improved event handling.
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- QBezier
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Used a new algorithm for offsetting curves.
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Improved performance by using a more sophisticated
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algorithm and by making QBezier a POD type.
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- QBrush
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Improved radial gradient rendering.
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- QColorDialog
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Process the return key correctly.
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- QComboBox
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Fixed behaviour of setMaxItems() to enable new items to be
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inserted within the range allowed.
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- QCommonStyle
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Ensured that mnemonics are always shown for buttons.
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Fixed position of right corner widget when used on its own.
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- QDateTimeEdit
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Improved the range of input allowed for numbers.
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- QDial
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Fixed valueChanged() signal emission.
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- QDialog
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Fixed Lower QSizeGrip in QDialog instead of raising it.
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- QDir
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Fixed relative path handling on Windows.
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Reverted empty string matching behavior to match Qt 3's
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behavior.
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Restored API compatibility with Qt 3.
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- QDirModel
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Fixed accidental deletion of directories in read-only mode.
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- QDockWidget
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Ensured that the size of a floating dock widget is the same
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regardless of how it was floated.
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Reintroduced double-clicking behavior to float a dock
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widget.
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Fixed incorrect moving behavior for floating widgets.
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Ensured that dock widgets display a close icon only if they
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can be closed.
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- QDockWidgetLayout
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See QMainWindow.
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- QDomNodeList
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Fixed handling of out-of-range items.
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- QDoubleSpinBox
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Improved decimals handling and rounding behavior in
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QDoubleSpinBox.
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- QFile
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Fixed problems with carriage return and line feed handling
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in readLine().
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Ensured that pos() returns the correct value if the file
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shrinks.
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- QFileDialog
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Fixed incorrect behavior where the dialog would go to the
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root directory if the user tried to enter a non-existent
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directory.
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Fixed sorting by type behavior.
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- QFontDatabase
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Fixed loading of special fonts.
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Fixed sample characters for Chinese scripts.
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- QFontDialog
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Switched the locations of the OK and Cancel buttons.
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Made items in the font dialog read-only.
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Improved handling of the OK and Cancel buttons when the
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dialog is in reverse layout mode.
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- QGifHandler
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Reintroduced GIF plugin support.
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- QGridLayout
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Improved default size handling.
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- QHeaderView
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Fixed section hiding behavior.
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Fixed Out of bounds error and improper calculation of last
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column.
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Improved mouse handling and widget updating.
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Fixed crashes caused by moving or removing sections, or by
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updating the current section.
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Improved signal behavior for resized or removed sections.
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- QHttp
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Fixed proxy authentication.
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Fixed broken behavior when scheduling many requests to
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different hosts.
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Fixed socket object ownership issues with setSocket() that
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could lead to a crash.
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- QImage
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Fixed smooth scaling for image formats other than RGB and
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ARGB32.
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- QImageReader
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Fixed the default implementation of imageCount() to return a
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valid number of images.
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- QInputDialog
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Switched the locations of the OK and Cancel buttons.
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- QIODevice
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Fixed problems with carriage return and line feed handling
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in readLine().
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Made bytesAvailable() return the unget buffer size as well
|
|
as the size of any pending data.
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Fixed error handling when reading lines with QFile.
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Fixed seek() behavior with regard to the unget buffer.
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- QItemDelegate
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Improved layout handling, redrawing, signal emission,
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and mouse click behavior.
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- QKeySequence
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Fixed accidental HTML escaping of ampersands.
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- QLayout
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Print out object names in warnings.
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- QLineEdit
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Enabled textChanged() signal emission when using input
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methods.
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Improved return key press handling for users of the
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returnPressed() signal.
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Fixed context menu action handling.
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Fixed editingFinished() signal emission behavior.
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Fixed Ctrl-K and Ctrl-U behavior to cut text rather than
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just deleting it.
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Fixed line edit selection behavior to maintain any current
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selection when the widget receives the keyboard focus.
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- QListView
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Improved handling of hidden rows.
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Fixed rendering when used in reverse mode.
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- QListWidget
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Fixed the size policy for laying out items in the list.
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Improved sorting performance.
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Fixed persistent index handling when sorting.
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- QMainWindow
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Fixed problems with multiple connections from QMainWindow
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signals to QToolBar slots.
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Fixed dock widget handling (adding a widget to all dock
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|
areas) and incorrect dock area splitting behavior that
|
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could lead to crashes in QMainWindow.
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Made QMainWindow's status bar have an "Ignored" horizontal
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size policy.
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- QMetaObject
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Fixed meta objects that reported far too many enums.
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Fixed the behavior of sender() to return the correct value
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during queued activation.
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- QMetaType
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Fixed whitespace handling in template specialization.
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Fixed missing qt_metatype_id implementation for <void *>.
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Added more support for compilation with QT_NO_DATASTREAM.
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- QMenu
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|
Fixed keyboard navigation when mouse navigation is also
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being used.
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Fixed menu bar merging behavior.
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- QMenuBar
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Fixed Alt key navigation.
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- QObject
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|
Fixed incorrect exception handling.
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|
|
- QPaintEngine
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|
Suppressed warnings when drawing "empty" text.
|
|
Fixed rendering of Underline, Overline, and StrikeOut for
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text drawn using outlines.
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|
|
- QPainter
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|
Improved handling of clip regions when restore() is called.
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Improved text drawing performance.
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- QPaintDevice
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Allowed construction of QImage before QApplication.
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|
|
- QPainterPath
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|
Improved performance and rendering accuracy.
|
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|
|
- QPen
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|
Fixed missing detach in setWidth().
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|
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- QPixmap
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|
Improved drawing speed and mask handling.
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|
|
- QPlastiqueStyle
|
|
Improved visual feedback for scrollbar page buttons and
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slider handle.
|
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Improved Plastique style on non-XRender-enabled displays.
|
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|
|
- QProcess
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|
Fixed endless loop of signal being emitted if model dialog
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|
is used in slot.
|
|
Made bytesAvailable() return the unget buffer size as well
|
|
as the size of any pending data.
|
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|
|
- QProxyModel
|
|
Improved signal handling for propagated signals.
|
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|
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- QResource
|
|
Fixed Latin-1 string handling.
|
|
Fixed unloading of resources.
|
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|
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- QScrollArea
|
|
Fixed widget resizing so that widgets that are smaller than
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the viewport remain visible.
|
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|
|
- QSettings
|
|
Made it possible to store QImage/QPixmap settings.
|
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Fixed race conditions in QSettings with INI files.
|
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Improved handling of non-terminated strings in INI files.
|
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|
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- QSizeGrip
|
|
Made the Qt 3-style constructor public.
|
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|
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- QSpinBox
|
|
Fixed problems with out-of-range integers and doubles.
|
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|
|
- QSqlQueryModel
|
|
Fixed integration between QSqlTableModel and MS Access.
|
|
Fixed signal emissions for tables with only one row.
|
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|
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- QSqlTableModel
|
|
Fixed problems with multiple record insertion.
|
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|
|
- QStatusBar
|
|
Fixed status bar height without size grip.
|
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|
|
- QTabBar
|
|
Fixed handling of the current page index when adding the
|
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first page to QTabWidget.
|
|
Improved tab bar icon handling to enable icons to be updated
|
|
without redrawing the entire tab bar.
|
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|
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- QTableView
|
|
Improved text cursor handling and support for keyboard
|
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modifiers.
|
|
Fixed problems with disappearing headers.
|
|
Disallowed selection of hidden rows and columns.
|
|
Fixed crashes involving empty models and tables with headers
|
|
but no rows or columns.
|
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|
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- QTableWidget
|
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Improved sorting and signal emission behavior.
|
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|
|
- QTabWidget
|
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Fixed handling of the current widget to keep the tab bar
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updated.
|
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|
|
- QTextBrowser
|
|
Removed temporary visible text selection when activating
|
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anchors with Shift-click.
|
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|
|
- QTextCursor
|
|
Fixed selection behavior for words at the beginning of lines.
|
|
Fixed incorrect use of character formats when calling
|
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insertFragment().
|
|
Fixed incorrect text insertion where line feeds and carriage
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returns would not be transformed into Unicode block
|
|
separators.
|
|
|
|
- QTextDocument
|
|
Added support for page breaking.
|
|
Added support for relative font sizes.
|
|
Added support for <hr /> tags.
|
|
Fixed clipboard handling and drag and drop of text frames.
|
|
Fixed handling of closing HTML </center> tags.
|
|
Fixed crash (failing assertion) on import of nested empty
|
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HTML tables.
|
|
Fixed data corruption in fromPlainText().
|
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Corrected the handling of image tags inside anchors.
|
|
Fixed introduction of empty spaces or lines before and after
|
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tables.
|
|
Fixed misrendering of some nested HTML tables with variable
|
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sized columns.
|
|
Fixed crash in table drawing due to out-of-bounds access.
|
|
Added support for the pageCountChanged() signal.
|
|
Improved performance and size of PostScript images when
|
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printing high resolution or scaled images.
|
|
|
|
- QTextEdit
|
|
Improved layout and selection handling.
|
|
Added configuration support for non-blinking cursors.
|
|
Improved keyboard handling.
|
|
Improved text insertion handling.
|
|
|
|
- QTextFormat
|
|
Added support for horizontal rules.
|
|
Improved font handling.
|
|
|
|
- QTextLayout
|
|
Allow line breaking at tabs.
|
|
Improved reporting of line widths for lines ending with a
|
|
QChar::LineSeparator.
|
|
Fixed reporting of the minimum width for layouts that have
|
|
NoWrap/ManualWrap as their wrap policy.
|
|
|
|
- QTextStream
|
|
Fixed locking behavior when reading from stdin.
|
|
Fixed seek() behavior.
|
|
Improved Latin-1 string handling.
|
|
|
|
- QTextTable
|
|
Improved performance and selection handling.
|
|
|
|
- QToolBar
|
|
Fixed toolbar resizing behavior to handle icon size changes.
|
|
|
|
- QTreeView
|
|
Improved handling of hidden rows, columns, and child items.
|
|
Fixed repainting issues with newly inserted child items
|
|
and selections.
|
|
Improved scrolling behavior.
|
|
Fixed crashes involving column handling and empty views.
|
|
Fixed sorting indicator behavior.
|
|
|
|
- QTreeWidget
|
|
Improved item insertion performance.
|
|
Fixed clone() and operator=() for QTreeWidgetItem.
|
|
Fixed crash when removing or deleting items with children.
|
|
Improved sorting performance.
|
|
Fixed sorting indicator behavior.
|
|
Fixed persistent index handling when sorting.
|
|
|
|
- QUrl
|
|
Improved the performance of removeDots().
|
|
|
|
- QWidget
|
|
Fixed problems with adding an action multiple times.
|
|
|
|
- QXmlInputSource
|
|
Improved heuristics for determining character encodings.
|
|
|
|
- Q3FileDialog
|
|
Fixed file selection handling.
|
|
|
|
|
|
Platform-Specific Issues
|
|
------------------------
|
|
|
|
Windows:
|
|
|
|
- QApplication
|
|
Fixed Block modeless elements of client when ActiveX opens a
|
|
modal dialog
|
|
Enabled tablet support.
|
|
Improved event handling for popup widgets.
|
|
|
|
- QAxWidget
|
|
Support a document site only if the COM object allows proper
|
|
initialization with a storage.
|
|
|
|
- QFileDialog
|
|
Updated to use the latest native Windows dialogs.
|
|
|
|
- QProcess
|
|
Fixed behavior of forwarded read channels.
|
|
|
|
- QSettings
|
|
Fixed behavior of childKeys() with respect to the default
|
|
key.
|
|
|
|
- QWindowsStyle
|
|
Fixed menu item size.
|
|
Improved drawing of default push buttons.
|
|
Fixed rendering of sliders to correctly differentiate
|
|
between those in enabled and disabled states.
|
|
|
|
- QWindowsXPStyle
|
|
Fixed menu frame rendering.
|
|
Reduced the space allocate to menu items.
|
|
|
|
|
|
X11:
|
|
|
|
- QApplication
|
|
Fixed incorrect initialization of screen and resolution.
|
|
Improved mouse button handling.
|
|
Fixed handling of withdrawn windows.
|
|
|
|
- QBitmap
|
|
Fixed bitmap brush textures to ensure that they use the
|
|
correct color with XRender.
|
|
|
|
- QFont
|
|
Fixed handle() to return useful values.
|
|
|
|
- QFontDatabase
|
|
Fixed fonts for some writing systems not being loaded on X11
|
|
|
|
- QPaintEngine
|
|
Fixed multi-screen support.
|
|
Improved performance and rendering accuracy.
|
|
Fixed dot-dash patterns when drawing with large pen widths.
|
|
Improved text rendering on exported displays.
|
|
|
|
- QWidget
|
|
Implemented support for window opacity.
|
|
Added support for widgets with 32 bit sizes.
|
|
Improved support for different active and inactive background
|
|
brushes.
|
|
Fixed window icons on X servers that have truecolor and
|
|
pseudocolor visuals with different depths.
|
|
Fixed text rendering on exported displays.
|
|
|
|
- QXIMInputContext
|
|
Fixed crash in XIM code with newer x.org libraries.
|
|
Fixed support for switching input method styles.
|
|
|
|
- QX11Embed
|
|
Exported QX11Embed (see the Important Changes section
|
|
above).
|
|
Improved handling of non-XEmbed clients.
|
|
Improved geometry and focus handling.
|
|
|
|
|
|
UNIX:
|
|
|
|
- QPageSetupDialog
|
|
Reduced the size of the dialog.
|
|
|
|
- QPrintDialog
|
|
Fixed initialization of color and grayscale radio buttons.
|
|
|
|
- QProcess
|
|
Fixed incorrect notification of process termination on
|
|
Linux kernels up to and including the 2.4 series.
|
|
Made QProcess emit an error() when failing to launch a
|
|
program.
|
|
|
|
|
|
Mac OS X:
|
|
|
|
- QApplication
|
|
Fixed widgetAt() to handle transparent widgets.
|
|
Handle keyboard events in the active window if no focus
|
|
window is available.
|
|
Changed wheel mouse scrolling speed to match that of
|
|
other applications.
|
|
|
|
- QComboBox
|
|
Fixed rendering of combobox frames.
|
|
|
|
- QDnD
|
|
Fixed URL handling.
|
|
|
|
- QClipboard
|
|
Fixed Junk at end of pasted text on Qt/Mac.
|
|
|
|
- QCursor
|
|
Fixed incorrect pixmap handling.
|
|
|
|
- QFileDialog
|
|
Fixed sheet modality issues to prevent the dialog from being
|
|
hidden behind other windows.
|
|
|
|
- QFont
|
|
Default to using the Geneva font.
|
|
Enable kerning and fix Arabic text handling.
|
|
|
|
- QLibraryInfo
|
|
Fixed location of qt.conf in Mac OS X bundles.
|
|
|
|
- QMacStyle
|
|
Improvements to rendering accuracy of comboboxes, tab bars,
|
|
workspace windows, tool buttons, and push buttons.
|
|
Fixed incorrect drawing of scrollbars with "inverted
|
|
appearance".
|
|
Fixed font-related crash for applications configured to
|
|
use the standard desktop settings.
|
|
|
|
- QMenu
|
|
Improved menu bar handling on navigation dialogs.
|
|
|
|
- QMenuBar
|
|
Improved menu bar hiding/wrapping behavior.
|
|
|
|
- QPaintDevice
|
|
Removed byte order assumptions.
|
|
|
|
- QPaintEngine
|
|
Improved brush handling, clipping, masking, and tiling
|
|
operations.
|
|
|
|
- QPixmap
|
|
Improvements to pixmap copying and conversion, masking, and
|
|
alpha channel handling.
|
|
Removed byte order assumptions.
|
|
|
|
- QPrintEngine
|
|
Made color printing the default behavior.
|
|
|
|
- QSettings
|
|
Sync the application's setting on construction of a
|
|
QSettings object.
|
|
|
|
- QSysInfo
|
|
Included enum values for Mac OS X codenames in the
|
|
MacVersion version enum.
|
|
|
|
- QWidget
|
|
Improved mouse event handling.
|
|
Improved interoperability between modal widgets.
|
|
|
|
|
|
Tools
|
|
-----
|
|
|
|
- uic3
|
|
Fixed class name handling when used in "-convert" mode.
|
|
Fixed vertical space issues with .ui files converted from
|
|
Qt 3 to Qt 4.
|
|
Improved support for Qt3Support widgets.
|
|
Improved support for deprecated enums.
|
|
Added a generator for dependencies in Qt 3 .ui files.
|
|
|
|
- rcc
|
|
Added better error reporting.
|
|
|
|
- uic
|
|
Added code generation for tab attributes.
|
|
Fixed text codec handling.
|
|
Used UTF-8 as the default enconding in .ui files.
|
|
Fixed code generation for QWizard.
|
|
|
|
|
|
Documentation
|
|
-------------
|
|
|
|
Porting:
|
|
|
|
Removed QMovie from the list of implicitly shared classes that were
|
|
previously explicitly shared.
|
|
|
|
Added .ui porting document to the 4.0.1 documentation.
|
|
|
|
Added sections about QHBox, QVBox, and QGrid to the porting guide.
|
|
|
|
Added QImageIO and QMovie to the porting guide.
|
|
|
|
Added QRegExp and some QDir functions to the porting guide.
|
|
|
|
Added QObject::objectTrees() to the porting guide.
|
|
|
|
Added QPopupMenu to the porting guide.
|
|
|
|
|
|
General:
|
|
|
|
Fix documentation of amortized container behavior.
|
|
|
|
Added information about using specific compilers to build Qt.
|
|
|
|
Removed QtMotif documentation because it is now part of Qt Solutions.
|
|
|
|
Clarify parent-child relationship within QThreads.
|
|
|
|
Documented potential file name clashes when using precompiled headers.
|
|
|
|
Added a Windows XP gallery.
|
|
|
|
Added pages to contain lists of classes for each Commercial Edition.
|
|
|
|
Reintroduced the QAssistantClient documentation as part of the
|
|
QtAssistant module.
|
|
|
|
Added missing Qt Designer API documentation.
|
|
|
|
- QApplication
|
|
Documented correct use of QApplication::setStyle().
|
|
|
|
- QComboBox
|
|
Made removeItem() and setRootModelIndex() visible in the
|
|
documentation.
|
|
|
|
- QMetaObject
|
|
Added missing documentation for QGenericArgument and
|
|
QGenericReturnArgument, making them visible in the
|
|
documentation, but not recommended for casual use.
|
|
|
|
- QPainter
|
|
Make QPainter::setRedirected() visible and fix its
|
|
description.
|
|
|
|
- QSqlDatabase
|
|
Document what happens when passing an existing connection
|
|
name to addDatabase().
|