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555 lines
16 KiB
Plaintext
555 lines
16 KiB
Plaintext
Qt 4.1 introduces many new features as well as many improvements and
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bugfixes over the 4.0.x series. For more details, see the online
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documentation which is included in this distribution. The
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documentation is also available at http://qt.nokia.com/doc/
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The Qt version 4.1 series is binary compatible with the 4.0.x series.
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Applications compiled for 4.0 will continue to run with 4.1.
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****************************************************************************
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* General *
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****************************************************************************
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Qt library
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----------
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- Integrated support for rendering Scalable Vector Graphics (SVG)
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drawings and animations (QtSvg module).
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- A Portable Document Format (PDF) backend for Qt's printing system.
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- A unit testing framework for Qt applications and libraries.
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- Modules for extending Qt Designer and dynamic user interface
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building.
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- New proxy models to enable view-specific sorting and filtering of
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data displayed using item views.
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- Additional features for developers using OpenGL, such as support
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for pixel and sample buffers.
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- A flexible syntax highlighting class based on the Scribe rich text
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framework.
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- Support for network proxy servers using the SOCKS5 protocol.
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- Support for OLE verbs and MIME data handling in ActiveQt.
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Qt Designer
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-----------
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- Added support for editing menu bars and tool bars.
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- Added support for adding comments to string properties.
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- Added new static QtForm library with improved
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QForm::Loader API for loading designer forms at run-time.
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- Added support for namespaces in uic generated code.
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- Added support for dock widgets in main windows.
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- Added support for editing table, tree and list widgets.
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- Improved palette editing and resource support.
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QTestLib
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--------
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- Added QTestLib, the Qt Unit Testing Library. See the "QTestLib" chapter
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in the Qt documentation for more information.
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- Users of older versions of QtTestLib can use the updater utility in
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tools/qtestlib/updater to convert existing autotests to work with QTestLib.
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Boost
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-----
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Added boost compatible syntax for declaring signals and slots. If you
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define the macro QT_NO_KEYWORDS "Q_SIGNALS" and "Q_SLOTS" are
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recognized as keywords instead of the default "signals" and "slots".
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ActiveQt
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--------
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QAxServer now supports mime-type handling - a ActiveX control can be
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registered to handle a certain file extension and mime-type, in which case
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QAxBindable::load and QAxBindable::save can be reimplemented to serialize
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the object.
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Build system
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------------
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Added support for linking static plugins into the application.
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Qt 3 to 4 Porting Tool
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----------------------
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Q(V|H)BoxLayout and QGridLayout usage is now ported to use
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Q3(V|H)BoxLayout/Q3GridLayout, to retain the margin/spacing
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behavior as in Qt 3.
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Meta Object Compiler (moc)
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--------------------------
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- Added support for const signals.
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Qt Assistant
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------------
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- Added -docPath command line option for easy setting of the
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document root path.
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QMake
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-----
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- Added support for new FORMS3 profile variable to make it possible
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to have Qt Designer forms from Qt 3 and Qt 4 in the same project.
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- Added support for precompiled headers on win32-g++ (MinGW)
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Compilers
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---------
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Added support for Solaris 10 on AMD64 with the compiler provided by
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Sun.
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****************************************************************************
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* Library *
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****************************************************************************
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New classes
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-----------
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- QTreeWidgetItemIterator
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Added iterator to help iterating over items in a QTreeWidget.
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- QSortingProxyModel
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The QSortingProxyModel can contain another model and handles
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the sorting of it.
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- QFilteringProxyModel
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Allows you to provide a subset of a model to a view.
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- QStringFilterModel
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Allows you to provide a subset of a model to a view based on a
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regular expression.
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- QSyntaxHighlighter
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The QSyntaxHighlighter class allows you to define syntax
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highlighting rules.
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- QAbstractFileEngine
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A base class for implementing your own file and directory handling
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back-end for QFile, QFileInfo and QDir.
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- QAbstractFileEngineHandler
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For registering a QAbstractFileEngine subclass with Qt.
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- QFSFileEngine
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The default file engine for regular file and directory access in Qt.
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- Q3(H|V)BoxLayout and Q3GridLayout
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Layout classes provided for compatibility that behave the same
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as the Qt 4 classes but use a zero margin/spacing by default,
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just like in Qt 3.
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- Added qFromLittleEndian, qToLittleEndian, qFromBigEndian and
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qToBigEndian endian helper conversion functions (qendian.h)
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- Q_EXPORT_PLUGIN2 macro
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Obsoletes Q_EXPORT_PLUGIN and allows static linking of
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plugins.
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- Q3ComboBox
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For enhanced backwards compatibility with Qt 3.
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- QGLPbuffer
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For creating and managing OpenGL pixel buffers.
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- QNetworkProxy
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For setting up transparent (SOCKS5) networking proxying.
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- QDirectPainter (Qtopia Core only)
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Provides direct access to video framebuffer hardware.
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General improvements
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--------------------
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- QByteArray
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Added toLong() and toULong().
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- QFileDialog
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Fix shortcut and focus for "Alpha channel" spinbox.
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- QLinkedList
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Added conversion methods to convert from/to STL lists.
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- QMap/QHash
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Fixed operator>>() to read back multiple values associated
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to a same key correctly.
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Added constFind(), for finding an item without causing a detach.
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- QMap/QHash
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Const-correctness in const_iterator's operator--(int).
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- QMainWindow
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The saveState() and restoreState() functions no longer
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fallback to using the windowTitle property when the objectName
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property is not set on a QToolBar or QDockWidget; this
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behavior was undocumented and has been removed.
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- QToolBar
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Added Qt 3 compatibility signal visibilityChanged(bool).
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- QMetaType
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Class is now fully reentrant.
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Metatypes can be registered or queried from multiple threads.
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Added qMetaTypeId<T>(), which returns the meta type ID of T at compile time.
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- QMetaProperty
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Added isResettable().
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- QSql
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Oracle plugin adds support for authentication using external credentials.
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Added isValid() to QSqlError.
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- QThread
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Added setPriority() and priority(), for querying and setting
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the priority of a thread.
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- QTreeWidgetItem/QTreeWidget
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Added new constructors and addChildren(), insertChildren(),
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takeChildren(), insertTopLevelItems(), addTopLevelItems to
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speed up insertion of multiple items.
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- QTextDocument
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Added the class QTextBlockUserData and added the possibility
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of storing a state or custom user data in a QTextBlock
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Added useDesignMetrics property, to enable the use of design metrics for
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all fonts in a QTextDocument.
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- QTextFormat
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Added support for setting the font pixel size.
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Added UserObject to QTextFormat::ObjectTypes enum.
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- QMetaType
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The value of QMetaTypeId<T>::Defined indicates whether a given type T is
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supported by QMetaType.
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- QAbstractItemView
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Added setIndexWidget() and indexWidget() which makes it
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possible to set a widget at a given index.
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Added a QAbstractItemView::ContiguousSelection mode.
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Added scrollToTop() and scrollToBottom().
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- QAbstractItemModel
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Added a SizeHintRole that can be set for each item. The item
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delegate will now check for this value before computing the
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size hint based on other item data.
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Add QModelIndex::operator<() so we are able to use them in
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QMap and other containers.
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Added qHash function for QModelIndex.
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- QTableWidget
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Added cellWidget() and setCellWidget() which makes it possible
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to set a widget at a specified cell.
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Added setCurrentCell().
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Added QTableWidgetItem copy constructors.
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- QTreeWidget
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Added setItemWidget() and itemWidget() which makes it possible
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to set a widget on an item.
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- QListWidget
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Added setItemWidget() and itemWidget() which makes it possible
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to set a widget on an item.
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Added QListWidgetItem copy constructors.
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- QMutableMapIterator
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Added value() overloads to Java-style iterators that return
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non-const references.
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- QTextTable
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Added mergeCells() and splitCells() to be able to set the row
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or column span on a table cell.
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- QStyle
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Added standardIcon() which returns a default icon for standard
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operations.
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Added State_ReadOnly, which is enabled for read-only widgets.
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Renamed QStyleOption::init() to initFrom().
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- QGroupBox is now completely stylable (QStyleOptionGroupBox)
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- Indeterminate (busy) progress bars are now animated properly
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in all styles.
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Added PM_DockWidgetTitleMargin as pixel metric.
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- QHash
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Make it possible to use QHash with a type that has no default
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constructor.
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- QTableView
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Made QTableView::setShowGrid() a slot, like in Qt 3.
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Added setRowHeight() and setColumnWidth().
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- QTableWidgetSelectionRange
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Added rowCount() and columnCount() convenience functions.
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- QSettings
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Added support for custom formats in QSettings.
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- QTextStream
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Added status(), setStatus() and resetStatus() for improved error handling.
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Added read(qint64 maxlen), for reading parts of a text stream into a
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QString.
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- QTextCursor
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Added support for BlockUnderCursor selection type.
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- QHeaderView
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Added defaultSectionSize property which tells the default size
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of the header sections before resizing.
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- QScrollBar
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Added context menu to the scrollbar with default navigation
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options.
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- QScrollArea
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Added ensureVisible(), which can scroll the scrollarea to make sure a
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specific point is visible.
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- QDateTime
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Added addMSecs(), which adds a number of milliseconds to the QDateTime.
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- QDateTimeEdit
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Added support for more date/time formats.
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Now allows multiple sections of the same type.
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- QButtonGroup
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Added handling of buttons with IDs to the buttongroup like in
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Qt 3.
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- QIODevice
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Added peek() for peeking data from a device.
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- QTextEdit
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Added property tabStopWidth which sets the tab stop width in
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pixels.
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append(const QString &) is now a public slot.
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Added support for inserting Unicode control characters through the
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context menu.
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Added property acceptRichText, for whether or not the text edit
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accepts rich text insertions by the user.
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Added overwriteMode property.
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- QDataStream
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Added skipRawData().
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Added support for QRegExp.
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- QProgressBar
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Added support for vertical progress bars.
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- QImageIOHandler
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The name() function has been obsoleted; use format() instead.
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Added QImageIOHandler::Animation, for determining if the image format
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supports animation.
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Added QImageIOHandler::BackgroundColor, for setting the background
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color for the image loader.
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- QImageReader
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Added setBackgroundColor() and backgroundColor(), for setting the
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background color of an image before it is read.
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Added supportsAnimation(), for checking if the image format supports
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animation.
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- QImageWriter
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Added support for saving image text.
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- QLocale
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Added dateFormat()/timeFormat() to query the date/time format for the
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current locale.
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Added toString() overloads for localized QTime and QDate output.
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Added decimalPoint(), groupSeparator(), percent(), zeroDigit(),
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negativeSign() and exponential(), which provide a means to generate
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custom number formatting.
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- QHostInfo
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Added support for reverse name lookups.
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- QHostAddress
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Added a QString assignment operator
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Added convenience functions for initializing from a native sockaddr
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structure.
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Added support for the IPv6 scope-id.
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- QPrinter
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Added property "embedFonts" for embedding fonts into the target
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document.
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Added support for printing to PDF.
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Added support for custom print and paint engines
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- QPrintEngine
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Added PPK_SuppressSystemPrintStatus, for suppressing the printer
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progress dialog on Mac OS X.
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- QKeySequence
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Added fromString() and toString() for initializing a key sequence
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from, and exporting a key sequence to a QString.
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- QUrl
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Added the port(int) function, which provides a default value for the
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port if the URL does not define a port.
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Support for decoding Punycode encoded hostnames in URLs.
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Made the parser more tolerant for mistakes, and added a ParsingMode
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flag for selecting strict or tolerant parsing.
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Added support for the NAMEPREP standard in our i18n domain name support.
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- QDir
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Added the filter QDir::NoDotAndDotDot, for the
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special directories "." and "..".
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Added the filter QDir::AllEntries, for all entries
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in a directory, including symlinks.
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- QAbstractSocket
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Added slots connectToHostImplementation() and
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disconnectFromHostImplementation() to provide polymorphic behavior for
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connectToHost() and disconnectFromHost().
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- QMenuBar
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Added setActiveAction(), which makes the provided action
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active.
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- QProxyModel
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This class has been obsoleted (see QAbstractProxyModel)
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- QWidget
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Now supports three modes of modality: NonModal, WindowModal and
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ApplicationModal.
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Added Qt::WindowModality, obsoleted WA_ShowModal and WA_GroupLeader.
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Added Qt::WA_OpaquePaintEvent widget attribute, obsoleting Qt::WA_NoBackground.
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Added boolean autoFillBackground property.
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Child widgets now always inherit the contents of their parent.
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- QPalette
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Added QPalette::Window (obsoletes Background) and
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QPalette::WindowText (obsoletes Foreground).
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- QHttpResponseHeader
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Added two constructors and the function setStatusLine() for generating
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a response header.
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- QBitArray
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Added count(bool), for counting on and off-bits in a bit array.
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- QVariant
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Added support for QRegExp
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- QRegExpValidator
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Added the property "regExp".
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- QTabBar
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Added the property "iconSize", for setting the size of the icons on
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the tabs.
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- QLineEdit
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Added support for inserting Unicode control characters through the
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context menu.
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- QString
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Added toLong() and toULong().
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Support for std::string conversions with embedded \0 characters.
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- QRegion
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Added translate(), like QRect::translated().
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- QProcess
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Added systemEnvironment(), which returns the environment variables
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of the calling process.
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Added exitStatus(), and added a new finished() signal which takes the
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exit status as a parameter.
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- QComboBox
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Made setCurrentIndex() a slot.
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- QFontDataBase
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Added styleString(), for retrieving the style string from a QFontInfo.
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Added support for Myanmar fonts.
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- QFontMetrics
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Added xHeight(), which returns the 'X' height of the font.
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- QCoreApplication
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Added arguments(), which returns a list of command line arguments as a
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QStringList.
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- QTcpSocket
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Added support for SOCKS5 via setProxy().
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- QUdpSocket
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Added property "bindMode", for binding several sockets to the same
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address and port.
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- QPen
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Added support for custom dash pattern styles and miter limits.
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Added support for QDebug.
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- QDebug
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Added support for QVector and QPair output.
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- QStringListModel
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Added support for sorting.
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- QOpenGLPaintEngine
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Gradients in the OpenGL paint engine are now drawn using
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fragment programs, if the extension is available. Lots of
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fixes, speedups and tweaks.
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Platform-Specific changes
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-------------------------
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Windows:
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- Painting
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Added support for ClearType text rendering.
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- File Engine
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Added support for long filenames/paths.
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X11:
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- QWidget
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Added support for freedesktop.org startup notifications.
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Mac OS X:
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- Improved support for the VoiceOver accessibility tool in Mac OS 10.4
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and later
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3rd-party libraries
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-------------------
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- zlib
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Upgraded to zlib 1.2.3.
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- FreeType
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Upgraded to FreeType 2.1.10.
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- SQLite
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Upgraded to SQLite 3.2.7
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