diff options
author | Volker Hilsheimer <volker.hilsheimer@qt.io> | 2020-11-03 21:27:02 +0100 |
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committer | Volker Hilsheimer <volker.hilsheimer@qt.io> | 2020-11-04 06:57:29 +0100 |
commit | 255cc9abfbc5bb8fd91b6ba5f2d8e82a62c2f96f (patch) | |
tree | a3b4ef01fb3990eb71444743720413ec865599d0 /src/gui/doc | |
parent | 317145af84c055cf019c84b9090f53bd8c61c5da (diff) |
Initial porting guide for QtGui and QtPrintSupport
Additional porting documentation for QtWidgets.
Task-number: QTBUG-88149
Task-number: QTBUG-88151
Change-Id: Ia28f01a8d8d6eaee9d8f08af1a54b76e57620cab
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Diffstat (limited to 'src/gui/doc')
-rw-r--r-- | src/gui/doc/src/qt6-changes.qdoc | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/src/gui/doc/src/qt6-changes.qdoc b/src/gui/doc/src/qt6-changes.qdoc index 630530c3c7..a3cafaa1c3 100644 --- a/src/gui/doc/src/qt6-changes.qdoc +++ b/src/gui/doc/src/qt6-changes.qdoc @@ -41,6 +41,65 @@ In this topic we summarize those changes in Qt GUI, and provide guidance to handle them. - \section1 ADD STUFF HERE + \section1 Kernel classes + \section2 QBitmap + + Implicit construction of a QBitmap from a QPixmap is no longer supported. + The constructor and assignment operator have been made explicit and marked as + deprecated. Use the new static factory function \l{QBitmap::}{fromPixmap} instead. + + \section2 QCursor + + Implicit construction of a QCursor from a QPixmap is no longer supported, the + constructor has been made explicit. + + \section2 QKeyCombination + + QKeyCombination is a new class for storing a combination of a key with an + optional modifier. It should be used as a replacement for combining values from + the Qt::Key enum with a modifier in a type-safe way. + + We recommend migrating code that currently uses operator+() to combine a key and + modifiers, as future C++ standards are likely to declare arithmetic operations + between unrelated enumeration types as illegal. Use operator|(), and change + APIs that expect an \c int to expect a QKeyCombination instead. + + Existing APIs that expect an \c int for a key combination can be called using + QKeyCombination::toCombined(). + + \section1 Text classes + + \section2 QFontDatabase + + The QFontDatabase class has now only static member functions. The constructor + has been deprecated. Instead of e.g. + + \code + const QStringList fontFamilies = QFontDatabase().families(); + \endcode + + use + + \code + const QStringList fontFamilies = QFontDatabase::families(); + \endcode + + \section2 QFont + + The numerical values of the QFont::Weight enumerator have been changed to + be in line with OpenType weight values. QFont::setWeight() expects an enum value + instead of an \c int, and code that calls the setter with an integer will fail to + compile. To continue to use old integer values, use QFont::setLegacyWeight(). + + \section1 Painting classes + + See the porting guide for \l{Porting to Qt 6 - Qt Print Support}{Qt Print Support} for + information about \l{QPagedPaintDevice} and other printing related classes. + + \section1 Utility classes + + \section2 QIntValidator and QDoubleValidator + + The \l{QIntValidator::}{setRange()} method is no longer marked as virtual. */ |