99 lines
3.4 KiB
Plaintext
99 lines
3.4 KiB
Plaintext
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Here is a list of (major) changes in Qt from 0.96 to 0.98.
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As usual, we fixed some bugs and improved the documentation.
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*************** Changes that might affect runtime behavior *****************
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QWidget:
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--------
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setMinimumSize() and setMaximumSize() now force the widget to
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a legal size. resize() and setGeometry() obey the widget's
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minimum/maximum size.
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The default behaviour of QWidget::closeEvent is now to hide the widget,
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not to delete it as before (which was potentially dangerous). This means
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that if you have a top level widget and the user closes it via the close
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box, it will now hide itself if you have not reimplemented closeEvent().
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See the QWidget::closeEvent() and QCloseEvent documentation for details.
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(There are other changes in QWidget, see below)
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*************** Changes that might generate compile errors *****************
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************** when compiling old code *****************
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Disabled copy constructors and operators=
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-----------------------------------------
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Copy constructors and operators= are disabled in the classes that cannot
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be copied (this includes all classes that inherit from QObject). This
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will let the compiler find bugs in your code, you'll get compile time
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errors where you most probably would have gotten core dumps before.
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This change has been done in the following classes:
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QAccel QApplication QBuffer QButton QButtonGroup QCheckBox QClipboard
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QComboBox QConnection QDataStream QDialog QFile QFileDialog QFrame
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QGroupBox QIODevice QImageIO QLCDNumber QLabel QLineEdit QListBox
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QMenuBar QMenuData QMenuItem QMessageBox QMetaObject QObject
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QPSPrinter QPaintDevice QPainter QPicture QPopupMenu QPrintDialog
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QPrinter QPushButton QRadioButton QRangeControl QScrollBar QSignal
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QSocketNotifier QTableView QTextStream QTimer QWidget QWindow
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The other classes all have sensible copy constructors and operators=.
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QDate:
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------
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These were protected, now private:
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static const char *monthNames[];
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static const char *weekdayNames[];
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uint jd;
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QListBox:
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---------
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The internals of QListBox are completely reworked. Definition of custom
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QListBoxItems is now much easier. This is *not* compatible with the old
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way of defining custom QLBItems. See the QListBoxItem documentation for
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details.
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QTime:
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------
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This was protected, now private:
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uint ds;
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*************** Type changes that might generate warnings: *****************
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none
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***************** Obsoleted functions **********************
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none
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***************** All other changes from 0.96 to 0.98 **********************
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moc:
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----
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Moc previously gave a syntax error when the word "class" was found
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in a string outside a class declaration. This bug has now been
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fixed.
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More moc arguments, check the manpage for details.
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QFont:
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------
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Two new convenience functions; bold() and setBold().
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QLabel:
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-------
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setMargin() and margin() are new. setMargin() specifies a minimum margin
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when the label contents are justified.
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QWidget:
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--------
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You can specify a custom widget frame for top level widgets, including
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no frame at all. See the widget constructor doc. for details.
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Qt now has enter and leave events. Reimplement the virtual functions
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void enterEvent( QEvent * ) and void leaveEvent( QEvent * ) to receive
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events when the mouse cursor leaves or enters the visible part of the
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widget.
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