"Fossies" - the Fresh Open Source Software Archive

Member "qt-everywhere-src-6.3.1/qtbase/dist/changes-3.2.0-b1" (25 May 2022, 10471 Bytes) of package /linux/misc/qt-everywhere-src-6.3.1.tar.xz:


As a special service "Fossies" has tried to format the requested text file into HTML format (style: standard) with prefixed line numbers. Alternatively you can here view or download the uninterpreted source code file.

    1 
    2 Qt 3.2 introduces new features as well as many improvements over the
    3 3.1.x series. This file gives an overview of the main changes since
    4 version 3.1.2.  For more details, see the online documentation which
    5 is included in this distribution. The documentation is also available
    6 at http://qt.nokia.com/doc/
    7 
    8 The Qt version 3.2 series is binary compatible with the 3.1.x series.
    9 Applications compiled for 3.1 will continue to run with 3.2.
   10 
   11 ****************************************************************************
   12 *			    General					   *
   13 ****************************************************************************
   14 
   15 
   16 Qt library
   17 ----------
   18 
   19 New classes have been added to the Qt Library including a
   20 class to add splash screens to applications (QSplashScreen), a toolbox
   21 widget that provides a column of tabbed widgets (QToolBox), and a
   22 class to manage per-thread data storage (QThreadStorage).
   23 
   24 The SQL module received a fair bit of attention this time. The most
   25 notable improvements include a native IBM DB2 driver, complete support
   26 for stored procedures including the possibility to access
   27 out-parameters, and native support for 64 bit fields without having to
   28 convert to or from strings. We also added support for setting
   29 connection parameters. This way you can, for example, conveniently
   30 open an SSL connection to a MySQL or PostgreSQL database. If you need
   31 even more customization, e.g. for an Oracle database, you can set up
   32 the connection yourself and instantiate a Qt driver object on top of
   33 it. An extended SQL cursor class has been added that makes it more
   34 convenient to display result sets from general SQL queries
   35 (QSqlSelectCursor). In addition, you can add custom database drivers
   36 without compiling them as plugins (see
   37 QSqlDatabase::registerSqlDriver()).
   38 
   39 QLineEdit, the one-line text editor, now supports validation input
   40 masks. The feature complements the previous QValidator concept and
   41 allows e.g. restriction of input to the IP address format (mask
   42 "990.990.990.990;_"), or to ISO date format (mask "0000-90-90;0").
   43 
   44 Qt's unicode code support has been extended. Most notably, full
   45 support for Indic scripts has been added, covering writing systems
   46 such as Devanagari, Tamil and Bengali. The group of right to left
   47 writing systems has been extended with support for Syriac. Both
   48 improvements are available on both Windows with Uniscribe installed,
   49 and on Unix/X11 when using XFT with OpenType fonts.
   50 
   51 All tool classes that support STL-like iterators with begin() and
   52 end(), contain two extra functions constBegin() and constEnd(). The
   53 const versions always return const iterators, and thus can be a little
   54 bit faster with Qt's implicitly shared containers.
   55 
   56 QPainter's complex drawText() function has been highly
   57 optimized. Despite its support for complex unicode scripts, it now
   58 performs better than its less unicode-capable counterpart in Qt 2.3.
   59 
   60 QPixmap now supports pixmaps with alpha channel (semi transparency) on
   61 all Windows versions except Windows 95 and Windows NT.
   62 
   63 The print dialog now supports "selection" as a print range as well as
   64 the possibility to enable/disable all different printer options
   65 individually.
   66 
   67 Many classes were improved; see the detailed overview that follows.
   68 
   69 Qt Motif Extension
   70 ------------------
   71 
   72 Dialog handling has matured and has been extended since the
   73 extension's introduction in Qt 3.1.  The documentation and code
   74 examples have been improved, including a walkthrough that covers the
   75 complete migration of a real-world Motif example to Qt. The process
   76 contains four intermediate steps where the application utilizes both
   77 toolkits.
   78 
   79 ActiveQt Extension
   80 ------------------
   81 
   82 Type handling has been extended on both the container and the server
   83 side. The new supported types are byte arrays and 64bit integers. The
   84 QAxServer module supports QObject subclasses as return and parameter
   85 types of slots, and allows error reporting through COM exceptions.
   86 The Designer integration has been extended to support property dialogs
   87 implemented by the control server.
   88 
   89 Qt Designer
   90 -----------
   91 
   92 The popup menu editor has been rewritten. The new editor provides the
   93 the ability to add, edit and remove menus and menu items directly in
   94 the menubar and in the popup menu. Navigation and editing can be done
   95 using either the mouse or the keyboard.
   96 
   97 The new QWidgetContainerPlugin class provides support for complex
   98 custom container widgets in Designer, such as the custom tab widget,
   99 etc.
  100 
  101 The property editor now allows editing of properties with or'd values
  102 (sets).
  103 
  104 Designer also supports the new QToolBox widget in a similar fashion to
  105 QTabWidget, etc.
  106 
  107 Qt Assistant
  108 ------------
  109 
  110 Profiles have been introduced to allow applications to extend the use
  111 of Qt Assistant as a help system. Profiles describe the documentation
  112 to use so that only application specific documentation will be
  113 referenced in an end user installation. Profiles also allow some
  114 customization of the look in Qt Assistant. For detailed information,
  115 see the helpdemo example in $QTDIR/examples/helpdemo.
  116 
  117 Profiles replace the content files and categories system. The
  118 following command line options are removed since they no longer serve
  119 any purpose: addContentFile, removeContentFile, category, and
  120 disableFirstRun.
  121 
  122 Qt Assistant has multiple tabs for browsing, therefore enabling
  123 multiple pages to be browsed without opening a new window.
  124 
  125 It is possible to specify a default home page.
  126 
  127 It is possible to specify a PDF reader so that urls to PDF files can
  128 be opened from Qt Assistant.
  129 
  130 ****************************************************************************
  131 *			   Library					   *
  132 ****************************************************************************
  133 
  134 - QAction / QActionGroup
  135 	Simplified constructors so that it is no longer necessary to
  136 	specify texts for buttons and menu items separately.
  137 	For action groups, we fixed the enable/disable behavior. If
  138 	an action inside an action group is explicitly disabled, it is
  139 	no longer implicitly enabled together with the group.
  140 	This is identical to enabling/disabling widgets and their
  141 	children.
  142 
  143 - QApplication
  144 	Added the aboutQt() slot for convenience.
  145 
  146 - QAssistantClient
  147 	Added the new function, setArguments(), that invokes Qt
  148 	Assistant in different modes.
  149 
  150 - QAxBase
  151 	Added the new function, asVariant(), that passes a COM
  152 	object through dynamicCall().
  153 
  154 - QAxBindable
  155 	Added the new function, reportError(), that sends error
  156 	information to the ActiveX client.
  157 
  158 - QColor
  159 	Added the new static function, colorNames(), that retrieves a
  160 	list of all color names known to Qt.
  161 
  162 - QDeepCopy
  163 	Now also supports QDir, QFileInfo, and QStringList.
  164 
  165 - QDom
  166 	Now has long and ulong support for setAttribute() and
  167 	setAttributeNS().
  168 
  169 - QFont
  170 	Added the new properties: stretch and overline. Added the new
  171 	function, resolve(), that copies unspecified attributes from
  172 	one font to another.
  173 
  174 - QFontDataBase
  175 	Added a new overload for families() that restricts the
  176 	returned list to fonts supporting a specific QFont::Script,
  177 	e.g. QFont::Greek, QFont::Devanagari or QFont::Arabic.
  178 
  179 - QFontInfo / QFontMetrics
  180 	Added new constructors that force the info and metrics objects
  181 	to use a given QFont::Script.
  182 
  183 - QGLWidget
  184 	Added a new constructor that takes a QGLContext
  185 	parameter. Makes the undocumented setContext() obsolete.
  186 
  187 - QHeader
  188 	Added getters for the sort indicator (sortIndicatorSection()
  189 	and sortIndicatorOrder() ).
  190 
  191 - QImage
  192 	Added a new overload for save() that writes to a given
  193 	QIODevice*.
  194 
  195 - QListView
  196 	Added tristate support to check list items
  197 	(QCheckListItem::setTristate()). Added the new function,
  198 	setSelectionAnchor(), to set the list view's selection anchor
  199 	explicitly.
  200 
  201 - QLineEdit
  202 	Added input masks: setInputMask(), inputMask(), and
  203 	hasAcceptableInput().
  204 
  205 - QMessageBox
  206 	Added the new static function, question(), that complements
  207 	the existing information(), warning() and fatal() functions.
  208 
  209 - QMotifDialog [Qt Motif Extension]
  210 	Now has two distinct modes of operation: 1) it allows a Motif
  211 	dialog to have a Qt parent, and 2) it allows a Qt dialog to have
  212 	a Motif parent.
  213 
  214 - QPixmapCache
  215 	Added the new function, remove(), to explicitly remove a
  216 	pixmap from the cache.
  217 
  218 - QPrinter
  219 	Added the new functions: setPrintRange(), printRange(),
  220 	setOptionEnabled(), and optionEnabled(). For Windows only,
  221 	added the new function, setWinPageSize(), that allows setting
  222 	DEVMODE.dmPaperSize directly.
  223 
  224 - QPtrList
  225 	Added STL-like iterators with begin(), end(), and erase().
  226 
  227 - QScrollBar
  228 	Maintains a user defined size policy when the direction
  229 	changes.
  230 
  231 - QSplashScreen [new]
  232 	This new widget class provides a splash screen to be shown
  233 	during application startup.
  234 
  235 - QSplitter
  236 	Added the new properties: opaqueResize, childrenCollapsible,
  237 	and handleWidth.
  238 
  239 - QSqlError
  240 	Added a couple of convenience functions: text(), which returns
  241 	the concatenated database and driver texts. showMessage(),
  242 	which will pop up a QMessageBox with the text that text()
  243 	returns.
  244 
  245 - QSqlQuery
  246 	Added overloads for the bindValue() call which makes it
  247 	possible to specifiy what role a bound value should have: In,
  248 	Out or InOut.
  249 
  250 - QSqlSelectCursor [new]
  251 	This new QSqlCursor subclass provides browsing of general SQL
  252 	SELECT statements.
  253 
  254 - QString
  255 	Added 64 bit support. Added the new functions: multiArg(),
  256 	reserve(), capacity(), squeeze(). Added case insensitive
  257 	overloads for startsWith() and endsWidth().
  258 
  259 - QStringList
  260 	Added the new function gres().
  261 
  262 - QStyle
  263 	Added support for toolbox, header, MDI frame, table grid line
  264 	color, line edit password character, and message box question.
  265 
  266 - QSyntaxHighlighter
  267 	Added the new function, currentParagraph().
  268 
  269 - QTabWidget
  270 	Added support for custom widgets to be placed beside
  271 	the tab bar: setCornerWidget() and cornerWidget().
  272 
  273 - QTextEdit
  274 	In Log mode, added the new functions: setMaxLogLines() and
  275 	maxLogLines().
  276 
  277 - QThreadStorage [new]
  278 	This new tool class provides per-thread data storage, also
  279 	referred to as thread local storage or TLS.
  280 
  281 - QToolBox [new]
  282 	This new widget class provides a column of tabbed widgets, one
  283 	above the other, with the current page displayed below the
  284 	current tab.
  285 
  286 - QVariant
  287 	Added support for LongLong and ULongLong.
  288 
  289 - QWidget
  290 	Added a new widget flag, WNoAutoErase, that combines the now
  291 	obsolete WResizeNoErase and WRepaintNoErase flags.
  292 
  293 - QWidgetContainerPlugin [new]
  294 	This new plugin class complements QWidgetPlugin for custom
  295 	container widgets, i.e. widgets that can host child
  296 	widgets.