QwtMathMLTextEngine Class Reference

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

#include <qwt_mathml_text_engine.h>

Inheritance diagram for QwtMathMLTextEngine:

Public Member Functions
	QwtMathMLTextEngine ()
	Constructor.
virtual	~QwtMathMLTextEngine ()
	Destructor.
virtual double	heightForWidth (const QFont &font, int flags, const QString &text, double width) const
virtual QSizeF	textSize (const QFont &font, int flags, const QString &text) const
virtual void	draw (QPainter *painter, const QRectF &rect, int flags, const QString &text) const
virtual bool	mightRender (const QString &) const
virtual void	textMargins (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const
Public Member Functions inherited from QwtTextEngine
virtual	~QwtTextEngine ()
	Destructor.

Additional Inherited Members
Protected Member Functions inherited from QwtTextEngine
	QwtTextEngine ()
	Constructor.

Detailed Description

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

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.

Member Function Documentation

void QwtMathMLTextEngine::draw ( QPainter *  painter, const QRectF &  rect, int  flags, const QString &  text  ) const

virtual

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.

double QwtMathMLTextEngine::heightForWidth ( const QFont &  font, int  flags, const QString &  text, double  width  ) const

virtual

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.

bool QwtMathMLTextEngine::mightRender ( const QString &  text ) const

virtual

Test if a string can be rendered by QwtMathMLTextEngine

Parameters

text	Text to be tested

Returns

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

Implements QwtTextEngine.

void QwtMathMLTextEngine::textMargins ( const QFont &  , const QString &  , double &  left, double &  right, double &  top, double &  bottom  ) const

virtual

Return margins around the texts

Parameters

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

Implements QwtTextEngine.

QSizeF QwtMathMLTextEngine::textSize ( const QFont &  font, int  flags, const QString &  text  ) const

virtual

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.