38be0d1383
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273 lines
6.6 KiB
Plaintext
273 lines
6.6 KiB
Plaintext
Qt 3.0 Beta6 is not binary compatible with Beta5; any programs linked
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against Beta5 must be recompiled.
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Below you will find a description of general changes in the Qt
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Library, Qt Designer and Qt Assistant. Followed by a detailed list of
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changes in the API.
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The Qt Library
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========================================
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QCom postponed
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--------------
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Previous Qt 3.0 betas introduced a module called QCom that provides a
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COM-like component system. The feedback we received on this module
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during the 3.0 beta phase has been mixed. Many users think this module
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lacks the intuitiveness and compactness that they have learned to
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expect from a Qt API. Therefore, we have made the difficult decision
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to withdraw the QCom API from the Qt 3.0 release. We will continue to
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develop this API until it is evolved enough for our customers, and
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will include the improved version in a later release.
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We apologize for any inconvenience the QCom API change has
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caused. This decision was made as part of our ongoing efforts to
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maintain the soundness and quality of Qt.
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Please note that the new plugin functionality in 3.0 will still be
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provided. This includes using custom widgets in Qt Designer, as well
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as runtime addition of styles, codecs, SQL drivers, and image format
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handlers. This functionality is now available through a substantially
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simplified API.
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Also also note that it will still be convenient to add custom plugin
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capabilities to Qt 3.0 applications, since the new QLibrary class will
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still be available. This class takes care of the low-level,
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platform-dependent issues regarding loading of DLLs and obtaining
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pointers to the functions exported by the DLLs.
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Qt Designer
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========================================
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- Improvements to the Designer reference manual.
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- Improved the C++ code indenter in the editor for numbers and
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handling of parenthesis.
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Qt Assistant
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========================================
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- Added a context menu with common commands.
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- Allow multiple windows to be opened and added the common shortcut
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that Shift+Click on a link opens the link in a new window.
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Qt Functions
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========================================
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QAccel
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------
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- Try harder to ensure that accelerators continue to work when a top
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level widget is reparented into another window.
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QColor
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-----
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- X11 only: better heuristic to decide if you use black or white when a
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color could not be allocated.
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- win32 only: improve color allocation on 8bit displays, e.g. when
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using a terminal server.
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QComboBox
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---------
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- Added a new function to be able to set a custom line edit.
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New function:
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virtual void setLineEdit( QLineEdit *edit );
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QCString
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--------
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- Implemented a dummy out-of-line destructor for QCString to help the
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compiler to optimize the number of conflicts as the location of a vtable
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is now known.
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QCursor
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-------
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- win32 only: Added a constructor that takes a platform specific handle.
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New function:
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QCursor( HCURSOR ); (win32 only)
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QDateTime and QDateTimeEdit
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---------------------------
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- win32 only: better handling of localization settings.
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QDockWindow
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-----------
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- Remeber last size of an undocked window, so when it is docked and
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undocked again, use this size again.
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QDom
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----
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- Fixed an infinite loop in QDomDocument::toString().
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QFileDialog
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-----------
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- Improved handling of "~" to make it work as a directory.
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QFileInfo
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---------
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- win32 only: permissions respects the read-only attribute now.
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QIconView
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---------
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- Added a function to find out whether an item in a view is currently
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being renamed.
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- Fixed a crash.
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New function:
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bool isRenaming() const;
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QInputDialog
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------------
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- Improved the handling of double input formats.
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QListView
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---------
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- Added a function to find out whether an item in a view is currently
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being renamed.
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- Fixed a possible infinite loop.
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- Improved spacing handling for columns that can show a sort indicator.
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New function:
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bool isRenaming() const;
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QMainWindow
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-----------
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- Make menuAboutToShow() protected to allow customized dock menus.
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- Fixed spacing problem for menu bars.
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QMap
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----
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- Fixed infinite looping in count( const Key& k ).
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QObject
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-------
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- The slot deferredDelete() was renamed to deleteLater() to be more
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intuitive. Code that used deferredDelete() has to be adjusted for the
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new name.
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New function:
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void deleteLater();
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QPainter
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--------
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- Fixed bounding rectangle when printing richtext.
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- Restore brush origin in QPainter::restore().
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QPixmap
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-------
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- X11 with render extension only: better support for alpha blending:
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- QPixmap::xForm() keeps now the alpha channel information
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- alpha channel information is kept when copying QPixamps
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- alpha blending works with QMovie
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- tiling pixmaps with alpha channel works now
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QPrinter
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--------
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- Unix only: fixed dashed line drawing when using high resolution
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printing.
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- Better printing detection on Irix.
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QRadioButton
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------------
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- Fixed focus problem for radio buttons in a button group.
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QSqlCursor
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----------
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- Fixed primeInsert() to work if the primary key of the edit buffer has
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changed.
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- Changing primary index keys now also works if the cursor's position
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moved in the meantime.
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QStyle
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------
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- Added a base value (CC_CustomBase) for custom defined primitives,
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controls, etc. -- this allows custom widgets to use the new style
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engine.
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- Fixed spacing problem for custom menu items.
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- Improved the look of the Motif plus and the SGI style.
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QTable
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------
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- Fixed a crash when drag source is the current table editor widget.
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- Fixed a bug that prevented having different colors in different cells.
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QTabletEvent
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------------
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- Improved Watcom tablet support to allow multiple devices to be used.
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QTextEdit
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---------
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- Better handling for font sizes in the font tag.
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- Parse the qt tag again.
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- Fixed text() for read-only documents.
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- Improved right mouse button menu handling.
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- New function to pass the position to the createPopupMenu() function for
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improved flexibility.
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New function:
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virtual QPopupMenu *createPopupMenu( const QPoint& pos );
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QThread
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-------
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- Unix only: Make sure that the seconds and nano-seconds in the sleep
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functions are within the limits.
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QUrlInfo
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--------
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- Added the concept of invalid QUrlInfo objects. This is useful in
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conjunction with QUrlOperator::info().
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New function:
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bool isValid() const;
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QWizard
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-------
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- Set the previous pages nextEnabled to TRUE if we add a page to the end
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of a wizard.
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QWMatrix
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--------
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- mapRect() returns always a valid QRect now.
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QWorkspace
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----------
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- Update the titlebar when toggling shaded/non-shaded.
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- Update the titlebar to be deactivated when the application's activation
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status changes.
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- Improve placement of document windows.
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