diff options
Diffstat (limited to 'src/gui/text/qstatictext.cpp')
| -rw-r--r-- | src/gui/text/qstatictext.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/gui/text/qstatictext.cpp b/src/gui/text/qstatictext.cpp index 56950ed..9a0ddca 100644 --- a/src/gui/text/qstatictext.cpp +++ b/src/gui/text/qstatictext.cpp @@ -152,6 +152,29 @@ void QStaticText::detach() } /*! + Prepares the QStaticText object for being painted with the given \a matrix and the given + \a font to avoid overhead when the actual drawStaticText() call is made. + + When drawStaticText() is called, the layout of the QStaticText will be recalculated if the + painter's font or matrix is different from the one used for the currently cached layout. By + default, QStaticText will use a default constructed QFont and an identity matrix to create + its layout. + + To avoid the overhead of creating the layout the first time you draw the QStaticText with + a painter whose matrix or font are different from the defaults, you can use the prepare() + function and pass in the matrix and font you expect to use when drawing the text. + + \sa QPainter::setFont(), QPainter::setMatrix() +*/ +void QStaticText::prepare(const QTransform &matrix, const QFont &font) +{ + d_ptr->matrix = matrix; + d_ptr->font = font; + d_ptr->init(); +} + + +/*! Assigns \a other to this QStaticText. */ QStaticText &QStaticText::operator=(const QStaticText &other) |