+
−
Qt 3.2 introduces new features as well as many improvements over the+
−
3.1.x series. This file gives an overview of the main changes since+
−
version 3.1.2.  For more details, see the online documentation which+
−
is included in this distribution. The documentation is also available+
−
at http://qt.nokia.com/doc/+
−
+
−
The Qt version 3.2 series is binary compatible with the 3.1.x series.+
−
Applications compiled for 3.1 will continue to run with 3.2.+
−
+
−
****************************************************************************+
−
*			    General					   *+
−
****************************************************************************+
−
+
−
Qt library+
−
----------+
−
+
−
New classes have been added to the Qt Library including a+
−
class to add splash screens to applications (QSplashScreen), a toolbox+
−
widget that provides a column of tabbed widgets (QToolBox), and a+
−
class to manage per-thread data storage (QThreadStorage).+
−
+
−
The SQL module received a fair bit of attention this time. The most+
−
notable improvements include a native IBM DB2 driver, complete support+
−
for stored procedures including the possibility to access+
−
out-parameters, and native support for 64 bit fields without having to+
−
convert to or from strings. We also added support for setting+
−
connection parameters. This way you can, for example, conveniently+
−
open an SSL connection to a MySQL or PostgreSQL database. If you need+
−
even more customization, e.g. for an Oracle database, you can set up+
−
the connection yourself and instantiate a Qt driver object on top of+
−
it. An extended SQL cursor class has been added that makes it more+
−
convenient to display result sets from general SQL queries+
−
(QSqlSelectCursor). QSqlDatabase::tables() is now capable to return+
−
tables, views and/or system tables. In addition, you can add custom+
−
database drivers without compiling them as plugins+
−
(see QSqlDatabase::registerSqlDriver()).+
−
+
−
QLineEdit, the one-line text editor, now supports validation input+
−
masks. The feature complements the previous QValidator concept and+
−
allows e.g. restriction of input to the IP address format (mask+
−
"990.990.990.990;_"), or to ISO date format (mask "0000-90-90;0").+
−
+
−
Qt's unicode code support has been extended. Most notably, full+
−
support for Indic scripts has been added, covering writing systems+
−
such as Devanagari, Tamil and Bengali. The group of right to left+
−
writing systems has been extended with support for Syriac. Both+
−
improvements are available on both Windows with Uniscribe installed,+
−
and on Unix/X11 when using XFT with OpenType fonts.+
−
+
−
All tool classes that support STL-like iterators with begin() and+
−
end(), contain two extra functions constBegin() and constEnd(). The+
−
const versions always return const iterators, and thus can be a little+
−
bit faster with Qt's implicitly shared containers.+
−
+
−
QPainter's complex drawText() function has been highly+
−
optimized. Despite its support for complex unicode scripts, it now+
−
performs better than its less unicode-capable counterpart in Qt 2.3.+
−
+
−
QPixmap now supports pixmaps with alpha channel (semi transparency) on+
−
all Windows versions except Windows 95 and Windows NT 4.0.+
−
+
−
The print dialog now supports "selection" as a print range as well as+
−
the possibility to enable/disable all different printer options+
−
individually.+
−
+
−
On Windows, the Qt installation includes a toolbar for Visual Studio.NET +
−
that provides an integration of the Qt tools (ie. Qt Designer) with the +
−
IDE.+
−
+
−
Many classes were improved; see the detailed overview that follows.+
−
+
−
Qt Motif Extension+
−
------------------+
−
+
−
Dialog handling has matured and has been extended since the+
−
extension's introduction in Qt 3.1.  The documentation and code+
−
examples have been improved, including a walkthrough that covers the+
−
complete migration of a real-world Motif example to Qt. The process+
−
contains four intermediate steps where the application utilizes both+
−
toolkits.+
−
+
−
ActiveQt Extension+
−
------------------+
−
+
−
Type handling has been extended on both the container and the server+
−
side. The new supported types are byte arrays and 64bit integers. The+
−
QAxServer module supports aggregation, as well as QObject subclasses as +
−
return and parameter types of slots, and allows error reporting through +
−
COM exceptions.+
−
The Designer integration has been extended to support property dialogs+
−
implemented by the control server.+
−
Controls developed with ActiveQt support aggregation, which makes it+
−
possible to use them in containers that require this form of containment to+
−
be supported. ActiveQt also supports masked controls in containers that+
−
support this for window'ed controls.+
−
+
−
Qt Designer+
−
-----------+
−
+
−
The popup menu editor has been rewritten. The new editor provides the+
−
the ability to add, edit and remove menus and menu items directly in+
−
the menubar and in the popup menu. Navigation and editing can be done+
−
using either the mouse or the keyboard.+
−
+
−
The property editor now allows editing of properties with or'd values+
−
(sets).+
−
+
−
Designer also supports the new QToolBox widget in a similar fashion to+
−
QTabWidget, etc.+
−
+
−
Qt Assistant+
−
------------+
−
+
−
Profiles have been introduced to allow applications to extend the use+
−
of Qt Assistant as a help system. Profiles describe the documentation+
−
to use so that only application specific documentation will be+
−
referenced in an end user installation. Profiles also allow some+
−
customization of the look in Qt Assistant. For detailed information,+
−
see the helpdemo example in $QTDIR/examples/helpdemo.+
−
+
−
Profiles replace the content files and categories system. The+
−
following command line options are removed since they no longer serve+
−
any purpose: addContentFile, removeContentFile, category, and+
−
disableFirstRun.+
−
+
−
Qt Assistant has multiple tabs for browsing, therefore enabling+
−
multiple pages to be browsed without opening a new window.+
−
+
−
It is possible to specify a default home page.+
−
+
−
It is possible to specify a PDF reader so that urls to PDF files can+
−
be opened from Qt Assistant.+
−
+
−
Compilers+
−
---------+
−
+
−
Note: Qt 3.2 is the last version to officially support IRIX MIPSpro+
−
o32 and Sun CC 5.0. A script, $QTDIR/bin/qt32castcompat, is provided+
−
for 3.2 which needs to be run for these compilers.+
−
+
−
Miscellaneous+
−
-------------+
−
+
−
Users of the 3.2.0 beta releases please note: The QWidgetContainerPlugin+
−
interfaces was removed from the final release due to some serious issues.+
−
+
−
****************************************************************************+
−
*			   Library					   *+
−
****************************************************************************+
−
+
−
- QAction / QActionGroup+
−
	Simplified constructors so that it is no longer necessary to+
−
	specify texts for buttons and menu items separately.+
−
	For action groups, we fixed the enable/disable behavior. If+
−
	an action inside an action group is explicitly disabled, it is+
−
	no longer implicitly enabled together with the group.+
−
	This is identical to enabling/disabling widgets and their+
−
	children.+
−
+
−
- QApplication+
−
	Added the aboutQt() slot for convenience.+
−
+
−
- QAssistantClient+
−
	Added the new function, setArguments(), that invokes Qt+
−
	Assistant in different modes.+
−
+
−
- QAxBase+
−
	Added the new function, asVariant(), that passes a COM+
−
	object through dynamicCall().+
−
+
−
- QAxBindable+
−
	Added the new function, reportError(), that sends error+
−
	information to the ActiveX client.+
−
+
−
- QColor+
−
	Added the new static function, colorNames(), that retrieves a+
−
	list of all color names known to Qt.+
−
+
−
- QDeepCopy+
−
	Now also supports QDir, QFileInfo, and QStringList.+
−
+
−
- QDom+
−
	Now has long and ulong support for setAttribute() and+
−
	setAttributeNS().+
−
+
−
- QFont+
−
	Added the new properties: stretch and overline. Added the new+
−
	function, resolve(), that copies unspecified attributes from+
−
	one font to another.+
−
+
−
- QFontDataBase+
−
	Added a new overload for families() that restricts the+
−
	returned list to fonts supporting a specific QFont::Script,+
−
	e.g. QFont::Greek, QFont::Devanagari or QFont::Arabic.+
−
+
−
- QFontInfo / QFontMetrics+
−
	Added new constructors that force the info and metrics objects+
−
	to use a given QFont::Script.+
−
+
−
- QGLWidget+
−
	Added a new constructor that takes a QGLContext+
−
	parameter. Makes the undocumented setContext() obsolete.+
−
+
−
- QHeader+
−
	Added getters for the sort indicator (sortIndicatorSection()+
−
	and sortIndicatorOrder() ).+
−
+
−
- QImage+
−
	Added a new overload for save() that writes to a given+
−
	QIODevice*.+
−
+
−
- QListView+
−
	Added tristate support to check list items+
−
	(QCheckListItem::setTristate()). Added the new function,+
−
	setSelectionAnchor(), to set the list view's selection anchor+
−
	explicitly.+
−
+
−
- QLineEdit+
−
	Added input masks: setInputMask(), inputMask(), and+
−
	hasAcceptableInput(). Added new function selectionStart()+
−
	which returns the index of the first selected character in the+
−
	line edit.+
−
+
−
- QMacStyle+
−
	Added customizable focus rectangle policy.+
−
+
−
- QMessageBox+
−
	Added the new static function, question(), that complements+
−
	the existing information(), warning() and fatal() functions.+
−
+
−
- QMotifDialog [Qt Motif Extension]+
−
	Now has two distinct modes of operation: 1) it allows a Motif+
−
	dialog to have a Qt parent, and 2) it allows a Qt dialog to have+
−
	a Motif parent.+
−
+
−
- QMYSQLDriver+
−
	Better support for MySQL/embedded.+
−
+
−
- QPixmapCache+
−
	Added the new function, remove(), to explicitly remove a+
−
	pixmap from the cache.+
−
+
−
- QPrinter+
−
	Added the new functions: setPrintRange(), printRange(),+
−
	setOptionEnabled(), and optionEnabled(). For Windows only,+
−
	added the new function, setWinPageSize(), that allows setting+
−
	DEVMODE.dmPaperSize directly.+
−
+
−
- QPtrList+
−
	Added STL-like iterators with begin(), end(), and erase().+
−
+
−
- QScrollBar+
−
	Maintains a user defined size policy when the direction+
−
	changes.+
−
+
−
- QSplashScreen [new]+
−
	This new widget class provides a splash screen to be shown+
−
	during application startup.+
−
+
−
- QSplitter+
−
	Added the new properties: opaqueResize, childrenCollapsible,+
−
	and handleWidth.+
−
+
−
- QSqlError+
−
	Added a couple of convenience functions: text(), which returns+
−
	the concatenated database and driver texts. showMessage(),+
−
	which will pop up a QMessageBox with the text that text()+
−
	returns.+
−
+
−
- QSqlQuery+
−
	Added overloads for the bindValue() call which makes it+
−
	possible to specifiy what role a bound value should have: In,+
−
	Out or InOut.+
−
+
−
- QSqlSelectCursor [new]+
−
	This new QSqlCursor subclass provides browsing of general SQL+
−
	SELECT statements.+
−
+
−
- QSqlDatabase+
−
	Added overloaded tables() call which can return tables, views+
−
	and/or system tables.+
−
+
−
- QPSQLDriver+
−
	Calling tables() with no arguments will only return table names,+
−
	instead of table and view names as in Qt 3.1.+
−
	The new tables() call in QSqlDatabase can be used to get+
−
	table and/or view names.+
−
+
−
- QString+
−
	Added 64 bit support. Added the new functions: multiArg(),+
−
	reserve(), capacity(), squeeze(). Added case insensitive+
−
	overloads for startsWith() and endsWidth().+
−
+
−
- QStringList+
−
	Added the new function gres().+
−
+
−
- QStyle+
−
	Added support for toolbox, header, MDI frame, table grid line+
−
	color, line edit password character, and message box question.+
−
+
−
- QSyntaxHighlighter+
−
	Added the new function, currentParagraph().+
−
+
−
- QTabWidget+
−
	Added support for custom widgets to be placed beside+
−
	the tab bar: setCornerWidget() and cornerWidget().+
−
+
−
- QTextEdit+
−
	In Log mode, added the new functions: setMaxLogLines() and+
−
	maxLogLines(). Implemented insertAt() for LogText mode.+
−
+
−
- QThreadStorage [new]+
−
	This new tool class provides per-thread data storage, also+
−
	referred to as thread local storage or TLS.+
−
+
−
- QToolBox [new]+
−
	This new widget class provides a column of tabbed widgets, one+
−
	above the other, with the current page displayed below the+
−
	current tab.+
−
+
−
- QVariant+
−
	Added support for LongLong and ULongLong.+
−
+
−
- QWidget+
−
	Added a new widget flag, WNoAutoErase, that combines the now+
−
	obsolete WResizeNoErase and WRepaintNoErase flags.+
−