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264 lines
7.0 KiB
Plaintext
264 lines
7.0 KiB
Plaintext
Here is a list of (major) changes in Qt from 0.95 to 0.96.
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Bug-fixes, optimizations and improved documentation, of course.
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QClipboard is new.
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There are some changes in the API (Qt header files). Some functions have
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been renamed or the arguments have changed. The old versions of these
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functions have been obsoleted. A call to an obsoleted function will by
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default generate a runtime warning the first time it is called, but it
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will be executed correctly. If you really need to ship code fast, you can
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turn off the runtime obsolescence warnings by calling
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qSuppressObsoleteWarnings().
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Obsoleted functions will disappear in a future release. To get
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compile-time errors for each use of an obsoleted function, compile your
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code with -DTEST_OBSOLETE. You should recompile without this option when
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you have upgraded your code (otherwise, you may get linking errors).
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Note: it is probably not a good idea to compile the Qt library with
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-DTEST_OBSOLETE, it may cause problems if you try to link or run
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programs that use obsoleted functions.
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For new users: obsoleted functions are no longer documented, in fact they
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are not even visible in the documentation.
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*************** Changes that might affect runtime behavior *****************
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QFileInfo:
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----------
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size() returns uint(previousy int), 0 if the size cannot be fetched (was -1).
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Use isFile() to check.
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QPopupMenu
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------------
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When a popup menu is a submenu (directly or as a subsub...menu) of a
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menu bar(QMenuBar), the menu bar will now always emit the activated() or
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highlighted() signal when a submenu emits these signals. This fix might
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have undesired effects if you previously have worked around it by
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connecting to signals both in menu bar and its submenus.
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*************** Changes that might generate compile errors *****************
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************** when compiling old code *****************
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QDataStream:
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-----------
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Serialization of int and uint is no longer supported. Use INT32 and
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UINT32 instead. This had to be changed in order to run Qt on 64-bit
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architectures.
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QImage:
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-------
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24-bpp pixel format no longer supported, use 32-bpp instead.
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This means that you have to use uint* instead of uchar* when accessing
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pixel values. You cannot use the uchar* pointer directly, because the
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pixel format depends on the byte order on the underlying platform. Use
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qRgb() and friends (qcolor.h) to access the pixels.
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QWidget:
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--------
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setMouseTracking() does not return bool. Call hasMouseTracking() to
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determine the mouse tracking state. (This only affects code that
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actually uses the return value.)
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(There are other changes in QWidget, see below)
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*************** Type changes that might generate warnings: *****************
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QCache/QIntCache:
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-----------------
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Using int/uint instead of long/ulong.
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QDate/QTime/QDateTime:
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----------------------
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Using int/uint instead of long/ulong (MS-DOS required long).
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QIODevice/QBuffer/QFile:
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------------------------
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Using int/uint instead of long/ulong.
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QKeyEvent:
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----------
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ascii() now returns int (previously uchar).
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QTableView:
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------------
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uint used instead of ulong (tableFlags() etc.)
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QTextStream:
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------------
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int used instead of long (flags() etc.)
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***************** Obsoleted functions **********************
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QAccel:
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-------
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enable(), disable() and isDisabled() are obsolete.
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Use setEnabled(TRUE/FALSE) and !isEnabled() instead.
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isItemDisabled(), enableItem(), disableItem() are obsolete.
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Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.
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QApplication:
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-------------
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cursor(), setCursor() and restoreCursor() obsoleted.
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Use overrideCursor(), setOverrideCursor() and restoreOverrideCursor()
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instead.
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QBitmap:
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--------
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Constructor takes "const uchar *bits" instead of "const char *"
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because of sign problems (uchar = unsigned char). Old constructors are
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obsolete.
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QButton:
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--------
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toggleButton() is obsolete, renamed to isToggleButton().
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QColor:
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-------
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The functions QRED, QGREEN, QBLUE, QRGB, QGRAY obsolete.
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Instead, use qRed, qGreen, qBlue, qRgb, qGray.
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QComboBox:
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----------
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setStrList() obsolete, use clear() + insertStrList() instead.
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string() obsolete, use text() instead.
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QLCDNumber:
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----------
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longValue() is obsolete, use intValue() instead.
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QListbox:
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---------
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The macro LBI_String is obsolete, use LBI_text instead.
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string() obsolete, use text() instead.
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stringCopy() and setStringCopy() are obsolete.
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QMenuData:
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----------
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string() obsolete, use text() instead.
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isItemDisabled(), enableItem(), disableItem() are obsolete.
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Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.
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checkItem() and uncheckItem() are obsolete.
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Use setItemChecked(TRUE/FALSE) instead.
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QPainter:
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---------
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drawBezier() is obsolete, general Bezier curves are rarely used and
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cost too much. Qt will only support drawQuadBezier() (four-point
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Bezier) in the future.
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QPointArray:
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-----------
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move() is obsolete, use translate() instead.
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bezier() is obsolete, general Bezier curves are rarely used and
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cost too much. Qt will only support quadBezier() (four-point
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Bezier) in the future.
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QRect:
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------
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move() is obsolete, use moveBy() instead.
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setTopLeft(), setTopRight(), setBottomLeft(), setBottomRight() and
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setCenter() is obsolete, use moveTopLeft(), moveTopRight(),
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moveBottomLeft(), moveBottomRight() and moveCenter() instead.
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QRegion:
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-------
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move() is obsolete, use translate() instead.
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QSocketNotifier:
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----------------
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enabled() is obsolete. Use isEnabled() instead.
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QWidget:
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--------
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enable(), disable() and isDisabled() are obsolete.
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Use setEnabled(TRUE/FALSE) and !isEnabled() instead.
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setMinimumSize(), setMaximumSize(), minimumSize(), maximumSize() are obsolete
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use setMinSize(), setMaxSize(), minSize(), maxSize() instead.
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enableUpdates() obsolete, use isUpdatesEnabled()/setUpdatesEnabled().
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id() is obsolete, it has been renamed to winId().
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***************** All other changes from 0.95 to 0.96 **********************
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moc
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----------
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Gives a warning if no output is generated.
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qglobal.h:
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----------
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INT32 and UINT32 typedefs changed to work with DEC Alpha.
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QApplication:
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-------------
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clipboard() is new.
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QButtonGroup:
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-------------
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Exclusive group setting added (isExclusive and setExclusive).
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find() is new.
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QColor:
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-------
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New type QRgb (uint), used for RGB triplet.
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QLineEdit:
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----------
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You can now mark text, and copy and paste to/from the clipboard.
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QPaintDevice:
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---------
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The bitblt function now takes an ignoreMask parameter. It has a default
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value, so no old code will be broken.
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QPrinter:
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------------
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fixed minor bugs in handling of polygons and beziers.
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QWidget:
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--------
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New protected virtual functions styleChange(), backgroundColorChange(),
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backgroundPixmapChange(), paletteChange() and fontChange().
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These functions are called from setStyle(), setBackgroundColor() etc.
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You can reimplement them to if you need to know when widget properties
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changed and to optimize updates.
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The destroyed() signal has been moved to QObject.
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