1 Qt 3.0 Beta6 is not binary compatible with Beta5; any programs linked
2 against Beta5 must be recompiled.
4 Below you will find a description of general changes in the Qt
5 Library, Qt Designer and Qt Assistant. Followed by a detailed list of
10 ========================================
15 Previous Qt 3.0 betas introduced a module called QCom that provides a
16 COM-like component system. The feedback we received on this module
17 during the 3.0 beta phase has been mixed. Many users think this module
18 lacks the intuitiveness and compactness that they have learned to
19 expect from a Qt API. Therefore, we have made the difficult decision
20 to withdraw the QCom API from the Qt 3.0 release. We will continue to
21 develop this API until it is evolved enough for our customers, and
22 will include the improved version in a later release.
24 We apologize for any inconvenience the QCom API change has
25 caused. This decision was made as part of our ongoing efforts to
26 maintain the soundness and quality of Qt.
28 Please note that the new plugin functionality in 3.0 will still be
29 provided. This includes using custom widgets in Qt Designer, as well
30 as runtime addition of styles, codecs, SQL drivers, and image format
31 handlers. This functionality is now available through a substantially
34 Also also note that it will still be convenient to add custom plugin
35 capabilities to Qt 3.0 applications, since the new QLibrary class will
36 still be available. This class takes care of the low-level,
37 platform-dependent issues regarding loading of DLLs and obtaining
38 pointers to the functions exported by the DLLs.
42 ========================================
44 - Improvements to the Designer reference manual.
46 - Improved the C++ code indenter in the editor for numbers and
47 handling of parenthesis.
51 ========================================
53 - Added a context menu with common commands.
55 - Allow multiple windows to be opened and added the common shortcut
56 that Shift+Click on a link opens the link in a new window.
60 ========================================
65 - Try harder to ensure that accelerators continue to work when a top
66 level widget is reparented into another window.
71 - X11 only: better heuristic to decide if you use black or white when a
72 color could not be allocated.
73 - win32 only: improve color allocation on 8bit displays, e.g. when
74 using a terminal server.
79 - Added a new function to be able to set a custom line edit.
82 virtual void setLineEdit( QLineEdit *edit );
87 - Implemented a dummy out-of-line destructor for QCString to help the
88 compiler to optimize the number of conflicts as the location of a vtable
94 - win32 only: Added a constructor that takes a platform specific handle.
97 QCursor( HCURSOR ); (win32 only)
99 QDateTime and QDateTimeEdit
100 ---------------------------
102 - win32 only: better handling of localization settings.
107 - Remeber last size of an undocked window, so when it is docked and
108 undocked again, use this size again.
113 - Fixed an infinite loop in QDomDocument::toString().
118 - Improved handling of "~" to make it work as a directory.
123 - win32 only: permissions respects the read-only attribute now.
128 - Added a function to find out whether an item in a view is currently
133 bool isRenaming() const;
138 - Improved the handling of double input formats.
143 - Added a function to find out whether an item in a view is currently
145 - Fixed a possible infinite loop.
146 - Improved spacing handling for columns that can show a sort indicator.
149 bool isRenaming() const;
154 - Make menuAboutToShow() protected to allow customized dock menus.
155 - Fixed spacing problem for menu bars.
160 - Fixed infinite looping in count( const Key& k ).
165 - The slot deferredDelete() was renamed to deleteLater() to be more
166 intuitive. Code that used deferredDelete() has to be adjusted for the
175 - Fixed bounding rectangle when printing richtext.
176 - Restore brush origin in QPainter::restore().
181 - X11 with render extension only: better support for alpha blending:
182 - QPixmap::xForm() keeps now the alpha channel information
183 - alpha channel information is kept when copying QPixamps
184 - alpha blending works with QMovie
185 - tiling pixmaps with alpha channel works now
190 - Unix only: fixed dashed line drawing when using high resolution
192 - Better printing detection on Irix.
197 - Fixed focus problem for radio buttons in a button group.
202 - Fixed primeInsert() to work if the primary key of the edit buffer has
204 - Changing primary index keys now also works if the cursor's position
205 moved in the meantime.
210 - Added a base value (CC_CustomBase) for custom defined primitives,
211 controls, etc. -- this allows custom widgets to use the new style
213 - Fixed spacing problem for custom menu items.
214 - Improved the look of the Motif plus and the SGI style.
219 - Fixed a crash when drag source is the current table editor widget.
220 - Fixed a bug that prevented having different colors in different cells.
225 - Improved Watcom tablet support to allow multiple devices to be used.
230 - Better handling for font sizes in the font tag.
231 - Parse the qt tag again.
232 - Fixed text() for read-only documents.
233 - Improved right mouse button menu handling.
234 - New function to pass the position to the createPopupMenu() function for
235 improved flexibility.
238 virtual QPopupMenu *createPopupMenu( const QPoint& pos );
243 - Unix only: Make sure that the seconds and nano-seconds in the sleep
244 functions are within the limits.
249 - Added the concept of invalid QUrlInfo objects. This is useful in
250 conjunction with QUrlOperator::info().
253 bool isValid() const;
258 - Set the previous pages nextEnabled to TRUE if we add a page to the end
264 - mapRect() returns always a valid QRect now.
269 - Update the titlebar when toggling shaded/non-shaded.
270 - Update the titlebar to be deactivated when the application's activation
272 - Improve placement of document windows.