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:
Inheritance graph
[legend]

List of all members.

Public Member Functions

 QwtMathMLTextEngine ()
virtual ~QwtMathMLTextEngine ()
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

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.

Constructor & Destructor Documentation

QwtMathMLTextEngine::QwtMathMLTextEngine (  ) 

Constructor.

QwtMathMLTextEngine::~QwtMathMLTextEngine (  )  [virtual]

Destructor.


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.

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