DOKK / manpages / debian 10 / libqwt5-doc / QwtMathMLTextEngine.3.en
QwtMathMLTextEngine(3) Qwt User's Guide QwtMathMLTextEngine(3)

QwtMathMLTextEngine -

#include <qwt_mathml_text_engine.h>

Inherits QwtTextEngine.


QwtMathMLTextEngine ()
virtual ~QwtMathMLTextEngine ()
virtual void draw (QPainter *painter, const QRect &rect, int flags, const QString &text) const
virtual int heightForWidth (const QFont &font, int flags, const QString &text, int width) const
virtual bool mightRender (const QString &) const
virtual void textMargins (const QFont &, const QString &, int &left, int &right, int &top, int &bottom) const
virtual QSize textSize (const QFont &font, int flags, const QString &text) const

Text Engine for the MathML renderer of the Qt solutions package.

The Qt Solution package includes a renderer for MathML http://www.trolltech.com/products/qt/addon/solutions/catalog/4/Widgets/qtmmlwidget that is available for owners of a commercial Qt license. You need a version >= 2.1, that is only available for Qt4.

To enable MathML support the following code needs to be added to the application:

#include <qwt_mathml_text_engine.h>
QwtText::setTextEngine(QwtText::MathMLText, new QwtMathMLTextEngine());

See also:

QwtTextEngine, QwtText::setTextEngine

Warning:

Unfortunately the MathML renderer doesn't support rotating of texts.

Draw the text in a clipping rectangle

Parameters:

painter Painter
rect Clipping rectangle
flags Bitwise OR of the flags like in for QPainter::drawText
text Text to be rendered

Implements QwtTextEngine.

Find the height for a given width

Parameters:

font Font of the text
flags Bitwise OR of the flags used like in QPainter::drawText
text Text to be rendered
width Width

Returns:

Calculated height

Implements QwtTextEngine.

Test if a string can be rendered by QwtMathMLTextEngine

Parameters:

text Text to be tested

Returns:

true, if text begins with '<math>'.

Implements QwtTextEngine.

Return margins around the texts

Parameters:

left Return 0
right Return 0
top Return 0
bottom Return 0

Implements QwtTextEngine.

Returns the size, that is needed to render text

Parameters:

font Font of the text
flags Bitwise OR of the flags used like in QPainter::drawText
text Text to be rendered

Returns:

Caluclated size

Implements QwtTextEngine.

Generated automatically by Doxygen for Qwt User's Guide from the source code.

Tue Nov 20 2012 Version 5.2.3