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Qt 2.0 introduces a wide range of major new features as well as |
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substantial improvements over the 1.x series. The documentation has |
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been significally extended and improved. |
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|
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This file will only give an overview of the main changes since version |
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1.44. A complete list would simply be too large to be useful. For |
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more detail see the online documentation which is included in this |
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distribution, and also available on http://doc.trolltech.com/ |
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|
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The Qt version 2.x series is not binary compatible with the 1.x |
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series. This means programs compiled with Qt version 1.x must be |
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recompiled to work with Qt 2.0. |
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|
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Qt 2.0 is mostly, but not completely, source compatible with Qt 1.x. |
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See the document "Porting from Qt 1.x to Qt 2.0" in the Online |
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Reference Documentation for information on how to port an existing Qt |
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1.x-based program to Qt 2.0. Note in particular the automatic porting |
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script included - it does a lot of the work for you. |
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|
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As for 1.x, the API and functionality of Qt is completely portable |
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between Microsoft Windows and X11. And between Windows 95, 98 and NT: |
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Unlike most toolkits, Qt lets a single executable work on all three. |
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|
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**************************************************************************** |
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* New major features * |
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**************************************************************************** |
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|
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|
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* Support for international software development: |
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QTranslator and the QObject::tr() function |
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QTextCodec (and subclasses) |
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QString is now a 16-bit Unicode string with good support for |
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legacy 8-bit interoperation. (The old 8-bit string class |
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from Qt 1.x has been renamed to QCString.) |
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QChar - a Unicode character |
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|
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* Rich Text |
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QTextView - formatted text and images |
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QTextBrowser - navigate formatted text and images |
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QStyleSheet - define your own XML formatting tags |
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QSimpleRichText - display rich text anywhere |
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|
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* Convenient and powerful new collection classes: |
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QMap<Key,Type> - QDict with arbitrary keys |
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QValueList<Type> - QList of types other than pointers |
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QStringList - QValueList<QString> with helper functions |
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|
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* Dialogs |
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QColorDialog - user picks a color |
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QFontDialog - user picks a font |
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QWizard - framework for leading users through steps |
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|
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* Layout |
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QGrid/QHBox/QVBox - grid and boxes of widgets automatically assembled |
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QHGroupBox/QVGroupBox - easy framed groups of widgets |
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QSizePolicy - a widget's abilities to change size in different ways |
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|
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* Custom layouts |
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New, much simpler and more powerful API for creating custom layouts |
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|
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* PNG Support |
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PNG support is now included in the core library |
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|
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* Support for generalized configurable GUI styles: |
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QStyle and subclasses |
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|
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* Session management |
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QSessionManager - saving state when the system shuts down |
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|
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* Extended coordinate system |
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QPoint, QPointArray, QSize and QRect now have 32-bit coordinates |
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|
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* Cleaner namespace |
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Global functions, enums and macros now either start with a 'q' or |
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have been moved into the new namespace class "Qt" |
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|
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**************************************************************************** |
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* List of removed classes * |
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**************************************************************************** |
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|
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* QGManager |
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Use the new custom layout API. |
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|
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* QPointVal, QPointData |
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Use QPoint. |
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|
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* QUrlDrag |
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Changed to QUriDrag |
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|
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* QWindow |
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Use QWidget |
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|
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**************************************************************************** |
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* List of new classes * |
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**************************************************************************** |
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|
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* QCDEStyle |
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* QChar |
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* QColorDialog |
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* QCommonStyle |
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* QConstString |
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* QCString |
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* QDragEnterEvent |
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* QDragLeaveEvent |
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* QDropSite |
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* QFontDialog |
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* QGLayoutIterator |
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* QGrid |
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* QHBox |
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* QHButtonGroup |
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* QHGroupBox |
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* QHideEvent |
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* QLayoutItem |
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* QLayoutIterator |
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* QMimeSource |
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* QMimeSourceFactory |
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* QMotifStyle |
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* QPlatinumStyle |
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* QSessionManager |
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* QShowEvent |
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* QSimpleRichText |
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* QSizeGrip |
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* QSizePolicy |
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* QSortedList |
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* QSpacerItem |
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* QStringList |
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* QStyle |
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* QStyleSheet |
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* QStyleSheetItem |
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* Qt |
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* QTab |
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* QTabWidget |
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* QTextBrowser |
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* QTextCodec |
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* QTextDecoder |
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* QTextEncoder |
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* QTextIStream |
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* QTextOStream |
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* QTextView |
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* QTranslator |
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* QUriDrag |
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* QVBox |
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* QVButtonGroup |
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* QVGroupBox |
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* QWheelEvent |
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* QWidgetItem |
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* QWindowsStyle |
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* QWizard |
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|
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For details, see e.g http://doc.trolltech.com/qcdestyle.html (or any |
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other class name, lowercased). |
