| Qt 3.0 Beta3 is not binary compatible with Beta2, this means that any |
| programs linked with Beta2 must be recompiled. |
| |
| Below you'll find a description of general changes in the Qt Library |
| and Qt Designer followed by a detailed list of changes in the |
| programming API. |
| |
| |
| The Qt Library |
| ======================================== |
| |
| Documentation |
| ------------- |
| |
| Overall enhancements include fixed typos, corrected grammar and |
| spelling, and the addition of several images and code examples. Most |
| classes now have useful detailed descriptions. Documentation accuracy |
| and usability has been generally improved. |
| |
| Styles |
| ------ |
| |
| In Qt 3.0.0 Beta2, only the Windows and Motif styles were implemented with |
| the new style API. Now the missing styles (MotifPlus, Platinum, SGI and |
| CDE) are included. |
| |
| MNG |
| --- |
| |
| Updated the libmng that is shipped with Qt to version 1.0.2. |
| |
| Wacom Tablet Support |
| -------------------- |
| |
| Fixes for Windows to solve the problem of creating a context for every |
| widget and the problem of opening the dialog and losing the ability to use |
| the tablet afterwards. |
| |
| |
| Qt Designer |
| ======================================== |
| |
| - Added the ability to sort the property editor either by category |
| (default and old behaviour) or alphabetically. |
| |
| - Added the option "-nofwd" to uic which supresses the generation of |
| forward declarations for custom classes in the generated output. |
| |
| - The way how custom slots and editing these slots directly in the Qt |
| Designer is handled has been changed. Originally the code for these |
| slots was saved into the .ui XML file together with the user |
| interface description and the uic did put this code into the |
| generated source files. |
| Now, if code of custom slots is edited directly in the Qt Designer, |
| additionally to the <filename>.ui of a form, a <filename>.ui.h file |
| is created. The code is written into this source file now instead |
| of the .ui file. |
| This way the code of custom slots can be also easily edited outside |
| the Qt Designer without subclassing, and it is possible to edit it |
| both, in the Qt Designer and outside the Qt Designer without |
| conflicts, as this is a plain text C++ file. |
| Uic now automatically includes this source file into the generated |
| sources (if it exists) and, in this case, does not create empty |
| stubs for the custom slots in the generated sources anymore. So |
| this code file has not to be added to the project Makefile. If the |
| source file does not exist, uic falls back to the old behavior and |
| creates the empty stubs in the generated source. |
| If a user does not want to subclass to implement the custom slots, |
| but also does not want to edit the code of the custom slots in the |
| Qt Designer, it is possible to always create the <formname>.ui.h |
| for a form (even if it was not edited in the Qt Designer) and edit |
| that file in a seperate editor. This feature can be configured in |
| the project settings dialog. |
| This way, the old approach of subclassing keeps working (and all |
| old .ui files keep working without any change). Also, for users of |
| the previous Qt 3.0 Beta versions, Qt Designer can still read the |
| .ui files which contain code. So also .ui files created with Qt 3.0 |
| Beta versions of the Qt Designer keep working without any change. |
| Details about the possible concepts which can be used to add code |
| to a form created by the Qt Designer (subclassing and uic + |
| <filename>.ui.h) and related information about project management |
| can be found in the chapter about new features in Qt Designer 3.0 |
| in the Qt Designer manual. |
| |
| |
| Qt Functions |
| ======================================== |
| |
| QApplication |
| ------------ |
| |
| - flush() no longer calls sendPostedEvents(), as this might be unsafe |
| under certain circumstances. |
| |
| QDataTable |
| ---------- |
| |
| - Now uses the new row selection mode of QTable. |
| |
| QDomDocument |
| ------------ |
| |
| - Fixed the toString() function to work properly with namespaces. |
| - In Qt 3.0.0 Beta2, there was a workaround for Microsoft's XML parser, |
| so that the toString() function did not output a doctype that consists |
| only of the name. This workaround is semantically wrong; it was |
| reverted. |
| |
| QDateEdit |
| --------- |
| |
| - Fixed wrong default size policy and missing size hint. |
| - Improved focus and tab handling. |
| |
| QEffects |
| -------- |
| |
| - Tooltips and popup menus scroll and fade again |
| |
| QTable |
| ------ |
| |
| - Fixed right mouse button handling. |
| - Implemented row selection modes. This implied adding the new enum values |
| SingleRow and MultiRow to the enum SelectionMode. |
| - Doubleclick clears selections completely now. |
| - Allow different focus styles, namely FollowStyle (draw it as the style |
| tells you) and SpreadSheet (draw it as it is done in common spreadsheet |
| programs). |
| |
| New functions: |
| virtual void setFocusStyle( FocusStyle fs ); |
| FocusStyle focusStyle() const; |
| virtual QRect cellRect( int row, int col ) const; |
| |
| QTimeEdit |
| --------- |
| |
| - Fixed wrong default size policy and missing size hint. |
| - Improved focus and tab handling. |
| |
| QTextEdit |
| --------- |
| |
| - QTextCursor is an internal class, so the signal |
| cursorPositionChanged(QTextCursor*) is only of limited use. Added a |
| more useful signal in addition. |
| |
| - Overrides accelerators for all shortcuts used to edit text. |
| |
| New signal: |
| void cursorPositionChanged( int para, int pos ); |
| |
| QLineEdit |
| --------- |
| |
| - Overrides accelerators for all shortcuts used to edit text. |
| |
| QLibrary |
| -------- |
| |
| - Static overload for resolve as a convenience function. |
| |
| New function: |
| static void *resolve( const QString &filename, const char * ); |
| |
| QListView |
| --------- |
| |
| - A bug that was introduced in Qt 3.0.0 beta 2 made listviews with |
| lots of items very slow. This problem has been fixed. |
| |
| QProcess |
| -------- |
| |
| - exitStatus() did not work for negative values on Unix. This is fixed |
| now. |
| - Fixed problems on Unixware. |
| |
| QRichtext |
| --------- |
| |
| - Fixed searching backwards. |
| - Fixed some BIDI text-rendering problems. |
| |
| QSound |
| ------ |
| |
| - Simplified the API to allow easier extension. |
| |
| New functions: |
| bool isAvailable(); |
| int loops() const; |
| int loopsRemaining() const; |
| void setLoops(int); |
| QString fileName() const; |
| bool isFinished() const; |
| |
| New slot: |
| void stop(); |
| |
| Removed function: |
| bool available(); |
| |
| QSpinBox |
| -------- |
| |
| - Spin box arrows were not updated correctly when the widget was |
| disabled/enabled. This problem is fixed now. |
| - Improved handling of the case when a spinbox accepts a value: now it |
| also accepts it if the spinbox loses focus or is hidden. |
| |
| QSqlCursor |
| ---------- |
| |
| - Add functions to set the generated flag. This is used to avoid the |
| generation of malformed SQL statements. |
| |
| New functions: |
| void setGenerated( const QString& name, bool generated ); |
| void setGenerated( int i, bool generated ); |
| |
| QSqlDriver |
| ---------- |
| |
| - Add new function hasFeature( QSqlDriver::DriverFeature ) const which |
| allows you to query whether the driver supports features like SQL |
| transactions or Binary Large Object fields. The functions |
| hasQuerySizeSupport(), canEditBinaryFields() and hasTransactionSupport() |
| are therefore obsolete and have been removed. |
| |
| New function: |
| bool hasFeature( QSqlDriver::DriverFeature ) const; |
| |
| Removed functions: |
| bool hasQuerySizeSupport() const; |
| bool canEditBinaryFields() const; |
| bool hasTransactionSupport() const; |
| |
| QSqlField |
| --------- |
| |
| - The bool argument of setNull() was removed since it does not make sense |
| to set a field to non null. |
| |
| QTabWidget |
| ---------- |
| |
| - Use the functions below to add tool tips to the individual tabs in a |
| QTabWidget. |
| |
| New functions: |
| void removeTabToolTip( QWidget * w ); |
| void setTabToolTip( QWidget * w, const QString & tip ); |
| QString tabToolTip( QWidget * w ) const; |
| |
| QTabBar |
| ------- |
| |
| - Use the functions below to add tool tips to the individual tabs in a |
| QTabBar. |
| |
| New functions: |
| void removeToolTip( int id ); |
| void setToolTip( int id, const QString & tip ); |
| QString toolTip( int id ) const; |
| |
| QTextStream |
| ----------- |
| |
| - The global functions setw(), setfill() and setprecison() were deleted |
| since they conflict with the std classes. If you need the functionality, |
| use qSetW(), qSetFill() and qSetPrecision() instead. |
| |
| Removed functions: |
| QTSManip setw( int w ) |
| QTSManip setfill( int f ) |
| QTSManip setprecision( int p ) |
