Here is a list of user-visible changes in Qt from 1.2 to 1.30.  As+
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usual, we fixed some bugs, made some more speedups, and improved the+
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documentation.+
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+
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Keyboard accelerators and traversal are significantly improved.+
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+
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Two new extensions included with Qt 1.30. They are not part of the library:+
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+
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Netscape plugin support. You can now write portable Netscape plugins+
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using Qt. See the qt/extensions/nsplugin directory in the distribution.+
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+
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The ImageIO extension library gives a framework for adding new image+
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formats, including PNG and JPEG in this release. See the qt/extensions/imageio+
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directory in the distribution.+
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+
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The OpenGL extension for Qt now resides in qt/extensions.+
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+
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+
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****************************************************************************+
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* 			     New classes				   *+
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****************************************************************************+
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+
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* QProgressBar displays a progress bar.+
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+
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* QProgressDialog uses QProgressBar to give the user feedback during long+
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  operations, as well as a means of aborting.+
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+
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* QMovie supports animated GIFs and incremental loading of images.+
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+
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* QHBoxLayout and QVBoxLayout are convenience classes giving a simpler+
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  interface to QBoxLayout.+
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+
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* QValidator provides a mechanism for validating input.+
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+
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+
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****************************************************************************+
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*		       Enhancements from 1.2 to 1.30			   *+
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****************************************************************************+
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+
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QFont now supports charsets latin1 through latin9.+
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+
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New command-line arguments: -style motif and -style windows are+
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accepted, as well as -style=motif and -style=windows, -visual, -ncols,+
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-cmap.+
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+
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QMultiLineEdit is usable for much bigger documents than in 1.2+
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+
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More sizeHint() functions added, some existing ones tweaked.+
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+
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Many widgets have improved look and feel, particularly changes to+
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Windows GUI style to match Windows more closely.+
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+
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Improved Postscript output.+
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+
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Color handling has been improved; better 32-to-8 conversion; Qt+
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prefers to use Macintosh/Netscape color cube in 8-bit mode; more and+
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better dithering support.+
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+
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GIF and PPM support.+
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+
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QMessageBox has a number of new static functions to replace the+
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venerable message(): information(), warning(), critical() and about().+
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+
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QPopupMenu can now display icon and text in the same item.+
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+
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QPopupMenu::exec() to pop up a synchronous popup menu.+
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+
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QListBox now supports multi selection.+
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+
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QWidget::setBackgroundMode() gives a powerful way of managing widget+
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backgrounds, to reduce flicker.+
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+
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QWidget::setIcon() now works under both X11 and Windows.+
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+
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The file dialog now remembers the previously selected directory.+
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+
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QApplication::setWinStyleHighlightColor() sets the highlight color in+
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windows style.+
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+
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QApplication::setDoubleClickInterval() sets the double click timeout+
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+
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The layout example is new and more informative.+
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+
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There is a new openGL example; extension/opengl/examples/box/ shows+
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how to control an openGL widget using Qt user interface components.+
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+
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+
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****************************************************************************+
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*               Changes that might affect runtime behavior                 *+
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****************************************************************************+
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+
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Tab/Shift-Tab handling has been improved a lot; this means that+
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widgets which couldn't get keyboard focus before now can.+
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+
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Some widgets (buttons, tab bars, tab dialogs) semi-automatically set+
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up keyboard accelerators. ( setText("E&xit") will give Alt-X as an+
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accelerator.)  In some very rare cases, this will cause changes of+
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behaviour.+
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+
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The QColor::light() function now works, and anything which relied on+
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its buggy behaviour might be a little darker than expected until changed,+
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usually just recompiling (the default argument has also changed).+
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+
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The colors used have been tuned a bit; pixmaps that "know" the RGB+
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values of colorGroup().background() and the like will look just a tiny+
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bit wrong.+
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+
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QApplication calls setlocale to the local environment, except for+
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LC_NUMERIC which is set to the C locale. This means that input/output+
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of floating point numbers will always use '.' as the decimal separator, +
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while all other locale dependant operations will use the default locale.+
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 +
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+
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****************************************************************************+
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*               Changes that might generate compile errors                 *+
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*                        when compiling old code                           *+
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****************************************************************************+
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+
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none+
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+
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****************************************************************************+
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*               Type changes that might generate warnings:                 *+
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****************************************************************************+
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+
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none+
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+
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****************************************************************************+
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* 			Deprecated functions				   *+
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****************************************************************************+
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+
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QApplication::setColorMode()+
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 - see QApplication::setColorSpec(int)+
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QRegion::xor()+
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 - see QRegion::eor()+
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QMessageBox::message()+
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 - see QMessageBox::information/warning/critical+
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QMultiLineEdit::getCursorPosition()+
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 - see QMultiLineEdit::cursorPosition()+
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QTabDialog::setOKButton()+
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 - see QTabDialog::setOkButton()+
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+
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****************************************************************************+
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*      New public/protected functions added to existing classes            *+
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****************************************************************************+
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+
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QAccel::repairEventFilter()+
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QApplication::activeModalWidget()+
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QApplication::activePopupWidget()+
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QApplication::allWidgets()+
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QApplication::doubleClickInterval()+
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QApplication::hasGlobalMouseTracking()+
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QApplication::processEvents(int)+
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QApplication::processOneEvent()+
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QApplication::setDoubleClickInterval(int)+
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QApplication::setGlobalMouseTracking(bool)+
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QApplication::setWinStyleHighlightColor(QColor const &)+
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QApplication::winStyleHighlightColor()+
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QApplication::x11ProcessEvent(_XEvent *)+
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QBoxLayout::className() const+
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QButton::accel() const+
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QButton::animateClick()+
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QButton::enabledChange(bool)+
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QButton::setAccel(int)+
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QComboBox::clearValidator()+
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QComboBox::setStyle(GUIStyle)+
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QComboBox::setValidator(QValidator *)+
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QComboBox::validator() const+
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QDir::convertSeparators(char const *)+
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QFrame::sizeHint() const+
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QGridLayout::addColSpacing(int, int)+
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QGridLayout::addRowSpacing(int, int)+
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QGridLayout::className() const+
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QImage::convertDepth(int, int) const+
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QImage::create(QSize const &, int, int, QImage::Endian)+
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QImage::createAlphaMask(int) const+
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QImage::inputFormats()+
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QImage::outputFormats()+
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QImage::pixel(int, int) const+
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QImage::pixelIndex(int, int) const+
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QImage::setPixel(int, int, unsigned int)+
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QImage::valid(int, int) const+
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QImageIO::inputFormats()+
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QImageIO::outputFormats()+
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QLabel::movie() const+
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QLabel::setMovie(QMovie const &)+
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QLayout::className() const+
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QLineEdit::clearValidator()+
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QLineEdit::setValidator(QValidator *)+
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QLineEdit::sizeHint() const+
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QLineEdit::validator() const+
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QListBox::clearSelection()+
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QListBox::focusOutEvent(QFocusEvent *)+
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QListBox::highlighted(char const *)+
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QListBox::isMultiSelection() const+
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QListBox::isSelected(int) const+
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QListBox::selected(char const *)+
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QListBox::selectionChanged()+
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QListBox::setMultiSelection(bool)+
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QListBox::setSelected(int, bool)+
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QListBox::toggleCurrentItem()+
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QMenuBar::heightForWidth(int) const+
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QMenuBar::leaveEvent(QEvent *)+
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QMenuBar::separator() const+
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QMenuBar::setSeparator(QMenuBar::Separator)+
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QMenuData::changeItem(QPixmap const &, char const *, int)+
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QMenuData::insertItem(QPixmap const &, char const *, QObject const *, char const *, int)+
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QMenuData::insertItem(QPixmap const &, char const *, QPopupMenu *, int, int)+
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QMenuData::insertItem(QPixmap const &, char const *, int, int)+
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QMessageBox::about(QWidget *, char const *, char const *)+
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QMessageBox::aboutQt(QWidget *, char const *)+
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QMessageBox::buttonText(int) const+
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QMessageBox::critical(QWidget *, char const *, char const *, char const *, char const *, char const *, int, int)+
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QMessageBox::critical(QWidget *, char const *, char const *, int, int, int)+
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QMessageBox::icon() const+
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QMessageBox::iconPixmap() const+
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QMessageBox::information(QWidget *, char const *, char const *, char const *, char const *, char const *, int, int)+
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QMessageBox::information(QWidget *, char const *, char const *, int, int, int)+
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QMessageBox::setButtonText(int, char const *)+
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QMessageBox::setIcon(QMessageBox::Icon)+
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QMessageBox::setIconPixmap(QPixmap const &)+
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QMessageBox::setStyle(GUIStyle)+
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QMessageBox::standardIcon(QMessageBox::Icon, GUIStyle)+
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QMessageBox::warning(QWidget *, char const *, char const *, char const *, char const *, char const *, int, int)+
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QMessageBox::warning(QWidget *, char const *, char const *, int, int, int)+
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QMultiLineEdit::cursorPoint() const+
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QMultiLineEdit::cursorPosition(int *, int *) const+
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QMultiLineEdit::getMarkedRegion(int *, int *, int *, int *) const+
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QPainter::drawPoints(QPointArray const &, int, int)+
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QPainter::drawWinFocusRect( int, int, int, int, const QColor & )+
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QPalette::detach()+
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QPicture::data() const+
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QPicture::isNull() const+
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QPicture::setData(char const *, unsigned int)+
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QPicture::size() const+
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QPixmap::convertFromImage(QImage const &, int)+
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QPixmap::load(char const *, char const *, int)+
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QPixmap::loadFromData(unsigned char const *, unsigned int, char const *, int)+
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QPopupMenu::exec()+
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QPopupMenu::setActiveItem(int)+
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QRegion::eor(QRegion const &) const+
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QSize::transpose()+
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QTabBar::setCurrentTab(QTab *)+
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QTabBar::setCurrentTab(int)+
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QTabBar::setShape(QTabBar::Shape)+
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QTabBar::shape() const+
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QTabBar::tab(int)+
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QTabBar::tabList()+
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QTabDialog::addTab(QWidget *, QTab *)+
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QTabDialog::hasOkButton() const+
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QTabDialog::selected(char const *)+
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QTabDialog::setTabBar(QTabBar *)+
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QTabDialog::showPage(QWidget *)+
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QTabDialog::styleChange(GUIStyle)+
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QTabDialog::tabBar() const+
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QTabDialog::tabLabel(QWidget *)+
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QTableView::minViewX() const+
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QTableView::minViewY() const+
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QTableView::updateTableSize()+
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QToolTip::font()+
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QToolTip::palette()+
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QToolTip::setFont(QFont const &)+
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QToolTip::setPalette(QPalette const &)+
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QWidget::backgroundMode() const+
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QWidget::create(unsigned int, bool, bool)+
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QWidget::destroy(bool, bool)+
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QWidget::focusProxy() const+
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QWidget::focusWidget() const+
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QWidget::isVisibleToTLW() const+
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QWidget::setBackgroundMode(QWidget::BackgroundMode)+
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QWidget::setFixedHeight(int)+
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QWidget::setFixedWidth(int)+
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QWidget::setFocusProxy(QWidget *)+
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QWidget::setMaximumHeight(int)+
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QWidget::setMaximumWidth(int)+
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QWidget::setMinimumHeight(int)+
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QWidget::setMinimumWidth(int)+
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QWidget::setTabOrder(QWidget *, QWidget *)+
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QWidget::update(QRect const &)+
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