Qt 3.0 Beta4 is not binary compatible with Beta3; any programs linked+
−
against Beta3 must be recompiled.+
−
+
−
Below you will find a description of general changes in the Qt+
−
Library and Qt Designer followed by a detailed list of changes in the+
−
API.+
−
+
−
+
−
The Qt Library+
−
========================================+
−
+
−
Documentation+
−
-------------+
−
+
−
The extensive revision of the documentation is almost complete.+
−
We have added new navigation options, including a shorter list+
−
of classes entitled Main Classes.+
−
+
−
Translations+
−
------------+
−
+
−
Qt now includes French and German translations of the Qt library, as+
−
well as a template for translating Qt. These files are found in the+
−
translations directory of Qt, in both .ts and .qm formats.+
−
+
−
Style Fixes+
−
-----------+
−
+
−
Qt 3.0.0 beta2 introduced a new QStyle API. This new API has changed+
−
between beta3 and beta4. These changes will affect both widget+
−
writers and style writers. The QStyle entry below explains what has+
−
changed.+
−
+
−
Beta4 also introduces some fixes for bugs introduced during the port+
−
to the new API in various widgets, notably QComboBox and QSlider.+
−
+
−
LiveConnect Plugin+
−
------------------+
−
+
−
A few bugs were fixed in the LiveConnect Plugin so that the grapher+
−
example works again on Windows.+
−
+
−
+
−
Qt Designer+
−
========================================+
−
+
−
 - General usability improvements and bug fixes, and improved file+
−
   and project handling.+
−
 - Updated designer manual to cover the .ui.h mechanism.+
−
 - New auto-indentation algorithm in the code editor.+
−
+
−
+
−
Qt Assistant+
−
========================================+
−
+
−
 - Added a Settings dialog and made more features customizable.+
−
 - Sessions are now saved and restored.+
−
 - A brief introduction to using Qt Assistant is now included.+
−
+
−
+
−
Qt Linguist+
−
========================================+
−
+
−
 - Phrase books are now provided in tools/linguist/phrasebooks.+
−
 - Added support for Qt Designer's .ui.h mechanism to lupdate.+
−
 - Support for a larger subset of .pro file syntax in lupdate and+
−
   lrelease.+
−
+
−
+
−
Qt Functions+
−
========================================+
−
+
−
QApplication+
−
------------+
−
+
−
 - Ignore drag-and-drop events for disabled widgets.+
−
 - Always send ChildRemoved events, even if no ChildInserted event+
−
   was sent.+
−
 - Mouse events for popup menus are now sent to event filters.+
−
+
−
QCanvasItem+
−
-----------+
−
+
−
 - The functions visible(), selected() and active() have been renamed+
−
   setVisible(), setSelected() and setActive().+
−
+
−
New functions:+
−
	bool isVisible() const;+
−
	bool isSelected() const;+
−
	bool isActive() const;+
−
+
−
Removed functions:+
−
	bool visible() const;+
−
	bool selected() const;+
−
	bool active() const;+
−
+
−
QCanvasText+
−
-----------+
−
+
−
 - Fixed alignment flags.+
−
+
−
QChar+
−
-----+
−
+
−
New function:+
−
	bool isSymbol() const;+
−
+
−
QCheckBox+
−
---------+
−
+
−
 - Fixed a bug in pixmap caching which could result in using the+
−
   wrong pixmap.+
−
+
−
QCheckListItem+
−
--------------+
−
+
−
 - After a mouse click, the list view ignores the following double+
−
   click as in Windows XP.+
−
+
−
QClipboard+
−
----------+
−
+
−
 - Made clipboard operations faster on X11.+
−
+
−
QColorDialog+
−
------------+
−
+
−
 - Never show scrollbars in the color array.+
−
+
−
QComboBox+
−
---------+
−
+
−
 - Comboboxes are now drawn correctly in all styles.+
−
 - Fixed bug with auto completion. There was undefined behavior with+
−
   non-editable comboboxes when changing focus.+
−
+
−
New function:+
−
	virtual void setCurrentText( const QString& );+
−
+
−
New property:+
−
	QString currentText+
−
+
−
QDataBrowser+
−
------------+
−
+
−
 - The setCursor() function is obsolete and will be removed for Qt 3+
−
   release due to the incompatibility with some compilers. Use+
−
   setSqlCursor() instead.+
−
+
−
QDataTable+
−
----------+
−
+
−
 - Dates and times in tables can now be displayed in different+
−
   display formats.+
−
 - The setCursor() function is obsolete and will be removed for Qt 3+
−
   release due to the incompatibility with some compilers. Use+
−
   setSqlCursor() instead.+
−
+
−
QDateEdit+
−
---------+
−
+
−
 - The default separator and the day-month-year order respect the+
−
   user's settings.+
−
 - Pressing the separator key now skips to the next section.+
−
 - Fixed a usability flaw related to some months being longer than+
−
   others.+
−
+
−
New functions:+
−
	QString separator() const;+
−
	virtual void setSeparator( const QString& s );+
−
+
−
QDateTime+
−
---------+
−
+
−
 - Always initialize the tm struct completely. This fixes a problem+
−
   on some versions of Unix.+
−
+
−
QDir+
−
----+
−
+
−
 - QDir::homeDirectory() now always returns an existing directory on+
−
   Windows.+
−
+
−
QDockWindows+
−
------------+
−
+
−
 - Fixed dockwindows created in non-dock areas.+
−
 - Fixed constructor if InDock and the parent is a QMainWindow.+
−
+
−
QDom...+
−
-------+
−
+
−
 - Fixes in the conversion of the DOM tree to a string.+
−
+
−
QDomNodeList+
−
------------+
−
+
−
 - Fixed a crash.+
−
+
−
QFileDialog+
−
-----------+
−
+
−
 - Select contents of the line edit at startup (if any) so that the+
−
   user can overwrite the provided file name right away.+
−
+
−
QFileInfo+
−
---------+
−
+
−
 - In adition to lastModified() and lastRead(), provide created().+
−
+
−
New function:+
−
	QDateTime created() const;+
−
+
−
QFont+
−
-----+
−
+
−
 - Provide more correct font metrics under X11.+
−
 - Worked around X11 limits on length of strings to draw and on+
−
   coordinate sizes.+
−
 - Fixed sone point vs. pixel size issues under X11.+
−
 - Added PreferAntialias and NoAntialias flags to StyleStrategy enum+
−
   type.+
−
+
−
QFtp+
−
----+
−
+
−
 - Fixed a QSocket bug that made QFtp crash if the connection was+
−
   refused.+
−
 - Fixed operationRename() and operationRemove().+
−
 - Set the right state when finished.+
−
+
−
QGIFFormat+
−
----------+
−
+
−
 - Support GIF files with broken logical screen size.+
−
+
−
QHeader+
−
-------+
−
+
−
 - Added support for '\n' in header labels.+
−
 - Improved placement of icon.+
−
+
−
QHttp+
−
-----+
−
+
−
 - If the status code of the reply is an error code, it is now also+
−
   reflected in the status of the network operation. The error+
−
   handling in general was improved.+
−
+
−
QImageIO+
−
--------+
−
+
−
 - Allow gamma correction to be set programmatically.+
−
+
−
New functions:+
−
	void setGamma( float gamma );+
−
	float gamma() const;+
−
+
−
QKeyEvent+
−
---------+
−
+
−
 - Worked around an X11 bug in isAutoRepeat().+
−
+
−
QKeySequence+
−
------------+
−
+
−
A new class that encapsulates a key sequence as used by accelerators.+
−
+
−
QLabel+
−
------+
−
+
−
 - Made the WordBreak alignment property work with rich text labels+
−
   in addition to plain text labels.+
−
+
−
QLayout+
−
-------+
−
+
−
 - Fixed crashes with deleting widgets managed by the layout.+
−
 - Fixed problems with reparenting widgets managed by the layout.+
−
 - Respect maximumHeight() of items in heightForWidth().+
−
+
−
QLibrary+
−
--------+
−
+
−
 - Plugins now return the version number, threading model and debug+
−
   vs. release mode of the Qt library used in ucm_initialize(). If+
−
   there is any kind of incompatibility, cancel the loading.+
−
+
−
QLineEdit+
−
---------+
−
+
−
 - Update the "edited" flag and the accessibility data better than+
−
   before.+
−
 - Fixed setMaxLength().+
−
 - Fixed context menu problem on Windows.+
−
+
−
New functions:+
−
	bool isUndoAvailable() const;+
−
	bool isRedoAvailable() const;+
−
+
−
QListViewItem+
−
-------------+
−
+
−
 - Fixed setVisible(TRUE) which triggered an update too soon.+
−
+
−
QMenuBar+
−
--------+
−
+
−
 - Cancel alt-activation of menubar on mouse press/release.+
−
 - On wheel events, all popup menus are now closed instead of hidden.+
−
   Hiding popup menus confused QMenuBar.+
−
+
−
QObject+
−
-------+
−
+
−
 - Have QObject dispatch events to customEvents().+
−
+
−
QPainter+
−
--------+
−
+
−
 - Renamed the enum type ClipMode to CoordinateMode. The enum values+
−
   ClipDevice and ClipPainter are now called CoordDevice and+
−
   CoordPainter.+
−
 - Fixed escaping of ampersand character, so "&&", "&&&", etc., now+
−
   work as they did in Qt 2.x.+
−
+
−
New functions:+
−
	void drawPixmap( const QRect& r, const QPixmap& pm );+
−
	void drawImage( const QRect& r, const QImage& img );+
−
+
−
QPicture+
−
--------+
−
+
−
 - Respect the size of a loaded SVG document.+
−
 - Solved a replay-transformed-picture problem.+
−
 - Fixed format version number.+
−
+
−
QPluginManager+
−
--------------+
−
+
−
 - Fixed crash when loading a plugin fails.+
−
+
−
QPopupMenu+
−
----------+
−
+
−
 - Custom menu items that are separators now see their size hint+
−
   respected.+
−
 - Fixed crash when drawing an empty popup menu.+
−
+
−
QPrinter+
−
--------+
−
+
−
 - Better printing in different resolutions under both Windows and+
−
   X11.+
−
 - Support for collation under Windows and X11.+
−
 - Correct bounding rectangles for texts in all printer modes.+
−
 - Fixed pixmap printing on Windows.+
−
 - Fixed PostScript font names for fonts with foundries.+
−
 - Support for PostScript printing of scaled images.+
−
+
−
New functions:+
−
	bool collateCopiesEnabled() const;+
−
	void setCollateCopiesEnabled( bool enable ) const;+
−
	bool collateCopies() const;+
−
	void setCollateCopies( bool on );+
−
	int winPageSize() const; /* Windows only */+
−
+
−
QProcess+
−
--------+
−
+
−
 - The function hangUp() was renamed to tryTerminate() to make the+
−
   purpose more clear. Furthermore, under Unix, the signal that is+
−
   sent was changed from SIGHUP to SIGTERM.+
−
 - The function kill() and the function tryTerminate() (formerly+
−
   hangUp()) were made slots.+
−
+
−
New slots:+
−
	void tryTerminate();+
−
	void kill();+
−
+
−
Removed functions:+
−
	void hangUp();+
−
	void kill();+
−
+
−
QProgressBar+
−
------------+
−
+
−
 - Draw the progress bar correctly with respect to the properties+
−
   "percentageVisible", "indicatorFollowsStyle" and+
−
   "centerIndicator".+
−
+
−
QPtrVector+
−
----------+
−
+
−
 - Support null items without triggering an assert.+
−
+
−
QPushButton+
−
-----------+
−
+
−
 - Fixed the sizeHint() of buttons with an icon.+
−
+
−
QRegExp+
−
-------+
−
+
−
 - Fixed a subtle bug in regular expressions mixing anchors and+
−
   alternation.+
−
+
−
QRegion+
−
-------+
−
+
−
 - Don't crash when creating a QRegion from an empty point array.+
−
+
−
QRichText+
−
---------+
−
+
−
 - Improved alignment support, including nested alignments.+
−
 - Improved table margin support.+
−
 - Improved page break algorithm.+
−
 - Do not eat '\n' in preformatted items.+
−
 - Do not draw the internal trailing space at the end of a paragraph.+
−
 - Fixed link underlining in table cells and other subdocuments.+
−
 - Use larger vertical margin between paragraphs.+
−
 - Display paragraph spacing even when printing.+
−
 - Support vertical table cell alignment.+
−
 - Fix for floating items and table cell size calculation.+
−
 - Improved allignment handling.+
−
 - Offset fixes for tabs.+
−
 - Better <div> support.+
−
 - Fixed <br> tag.+
−
 - Fix for the <center> tag and centering tables.+
−
 - Fixed &nbsp; and <nobr>.+
−
 - Fixed off-by-one bug in gotoWordLeft() and gotoWordRight().+
−
 - Better positioning of super- and subscripts.+
−
 - Faster printing of large tables by using a clipping rectangle.+
−
 - Improved high-resolution printing.+
−
 - Correct sizes for images when printing.+
−
 - Fixed list painting when printing.+
−
 - Use right background for printing.+
−
+
−
QScrollBar+
−
----------+
−
+
−
 - Made setValue() a slot.+
−
+
−
New slot:+
−
	void setValue( int );+
−
+
−
Removed function:+
−
	void setValue( int );+
−
+
−
QSettings+
−
---------+
−
+
−
 - Added support for QStringLists without requiring a distinct+
−
   separator.+
−
 - Added support for null strings, empty lists and null strings in+
−
   lists.+
−
 - Fixed bug with values ending with a backslash.+
−
 - On Unix, don't overwrite files if the user doesn't have permission.+
−
+
−
QSimpleRichText+
−
---------------+
−
+
−
 - Implemented vertical breaks and floating elememts.+
−
 - Fixed bug with borders and clipping in printing.+
−
 - Fixed bug in adjustSize() cache.+
−
+
−
QSizePolicy+
−
-----------+
−
+
−
 - Stretch factors were added to QSizePolicy.+
−
 - Added a new size policy: Ignored.+
−
+
−
New functions:+
−
	uint horStretch() const;+
−
	uint verStretch() const;+
−
	void setHorStretch( uchar sf );+
−
	void setVerStretch( uchar sf );+
−
+
−
QSpinBox+
−
--------+
−
+
−
New slot:+
−
	virtual void selectAll();+
−
+
−
QSqlDatabase+
−
------------+
−
+
−
 - QSqlDatabase now provides access to meta-data. Meta-data is stored+
−
   in two new classes, QSqlFieldInfo and QSqlRecordInfo. See the+
−
   class documentation for details.+
−
+
−
New Functions:+
−
	QSqlRecordInfo recordInfo ( const QString & tablename ) const+
−
	QSqlRecordInfo recordInfo ( const QSqlQuery & query ) const+
−
+
−
+
−
QSqlFieldInfo+
−
-------------+
−
+
−
A new class that stores meta data associated with a SQL field.+
−
+
−
QSqlRecordInfo+
−
--------------+
−
+
−
A new class that is keeping a set of QSqlFieldInfo objects.+
−
+
−
QStatusBar+
−
----------+
−
+
−
 - Don't cut off the bottom line of the border of the status bar.+
−
 - Respect maximumHeight() of items in the status bar.+
−
+
−
QString+
−
-------+
−
+
−
 - QString now provides section(), a function that parses simple+
−
   fields.+
−
 - The function similarityWith() has been removed from the API. If+
−
   you need it, write to qt-bugs@trolltech.com.+
−
+
−
New functions:+
−
	QString section( QChar sep, int start, int end,+
−
			 int flags = SectionDefault ) const;+
−
	QString section( char sep, int start, int end = 0xffffffff,+
−
			 int flags = SectionDefault ) const;+
−
	QString section( const char *substr, int start, int end = 0xffffffff,+
−
			 int flags = SectionDefault ) const;+
−
	QString section( QString substr, int start, int end = 0xffffffff,+
−
			 int flags = SectionDefault ) const;+
−
	QString section( const QRegExp &regxp, int start, int end = 0xffffffff,+
−
			 int flags = SectionDefault ) const;+
−
	+
−
Removed function:+
−
	int similarityWith( const QString& target ) const;+
−
+
−
QStyle+
−
------+
−
+
−
 - Changed "void **" technique to QStyleOption technique. This+
−
   affects the interface of most of the QStyle member functions.+
−
   Please read the QStyle class documentation for details.+
−
+
−
QStyleOption+
−
------------+
−
+
−
A new class that encapsulates extra data sent to the style API.+
−
+
−
QTabBar+
−
-------+
−
+
−
 - The accelerators are now working correctly after changing a tab.+
−
+
−
QTable+
−
------+
−
+
−
 - Fixed crash related to popup menu and cell edition.+
−
 - Fixed not-drawing hidden cells.+
−
+
−
QTextCodec+
−
----------+
−
+
−
 - Added MIME names for codecs.+
−
 - Improved locale detection.+
−
 - Fixed the ISO 8859-6.8x (Arabic) font encoding.+
−
+
−
New function:+
−
	const char *mimeName() const;+
−
+
−
QTextStream+
−
-----------+
−
+
−
 - Fixed bug with stateful QTextEncoders.+
−
+
−
QTextEdit+
−
---------+
−
+
−
 - Respect disabling updates.+
−
 - Fixed link underlining in table cells and other subdocuments.+
−
 - Draw cursor on focus in.+
−
 - Emit cursorPositionChanged() where it previously was missing.+
−
 - Fixed sync().+
−
+
−
New functions:+
−
	bool isUndoAvailable() const;+
−
	bool isRedoAvailable() const;+
−
	bool isUndoRedoEnabled() const;+
−
	virtual void setUndoRedoEnabled( bool enabled ) const;+
−
+
−
New property:+
−
	bool undoRedoEnabled+
−
+
−
QThread+
−
-------+
−
+
−
 - Fixed QThread::sleep() on Unix.+
−
+
−
QTime+
−
-----+
−
+
−
 - fromString() with format Qt::ISODate now recognizes milliseconds+
−
   if they are specified.+
−
 - Make elapsed() a const function.+
−
+
−
QTimeEdit+
−
---------+
−
+
−
 - The default time separator respects the user's settings.+
−
 - Pressing the separator key now skips to the next section.+
−
+
−
New functions:+
−
	QString separator() const;+
−
	virtual void setSeparator( const QString& s );+
−
+
−
QTooltip+
−
--------+
−
+
−
 - Hide active tooltips when the user switches to another application.+
−
 - Fixed tooltips with Windows effects enabled.+
−
+
−
QUrl+
−
----+
−
+
−
 - Fixed password encoding.+
−
+
−
New function:+
−
	bool hasPort() const;+
−
+
−
QValidator+
−
----------+
−
+
−
 - Let QValidator, QIntValidator, QDoubleValidator and+
−
   QRegExpValidator have QObject parents rather than only QWidget+
−
   parents.+
−
+
−
QVariant+
−
--------+
−
+
−
 - Added QBitArray support.+
−
 - The QDateTime type now supports asDate() and asTime().+
−
 - The QByteArray type now supports toString().+
−
+
−
New functions:+
−
	QVariant( const QBitArray& );+
−
	const QBitArray toBitArray() const;+
−
	QBitArray& asBitArray();+
−
+
−
QWhatsThis+
−
----------+
−
+
−
 - Added support for hyperlinks in "What's This?" help windows.+
−
+
−
QWidget+
−
-------+
−
+
−
 - Fixed crashes related to LayoutHint events.+
−
+
−
QWizard+
−
-------+
−
+
−
 - Made removePage() behave as documented.+
−
 - Fixed back() so that it skips irrelevant pages like next().+
−
+
−
QWorkspace+
−
----------+
−
+
−
 - Make sure that the widget state is set before the first titlebar+
−
   painting is triggered.+
−
 - Use the right pixmap for titlebar.+
−
 - Respects widget flags better for titlebars in QCommonStyle.+
−
 - Fixed move and resize in the system menu bar of workspace+
−
   children.+
−
+
−
QXml+
−
----+
−
+
−
 - Made the "prefix" xmlns map to the namespace name+
−
   http://www.w3.org/2000/xmlns/.+
−
 - Fixed default namespaces.+
−
+
−
QXmlAttributes+
−
--------------+
−
+
−
 - Added count() as equivalent to length() to be consistent with Qt+
−
   conventions.+
−
+
−
New function:+
−
	int count() const;+
−