QwtMathMLTextEngine - Man Page
Name
QwtMathMLTextEngine —
Text Engine for the MathML renderer of the Qt solutions package.
Synopsis
#include <qwt_mathml_text_engine.h>
Inherits QwtTextEngine.
Public Member Functions
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
QwtMathMLTextEngine ()
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
virtual ~QwtMathMLTextEngine ()
Detailed Description
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.
Constructor & Destructor Documentation
QwtMathMLTextEngine::QwtMathMLTextEngine ()
Constructor.
QwtMathMLTextEngine::~QwtMathMLTextEngine () [virtual]
Destructor.
Member Function Documentation
void QwtMathMLTextEngine::draw (QPainter *painter, const QRect &rect, intflags, 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.
int QwtMathMLTextEngine::heightForWidth (const QFont &font, intflags, const QString &text, intwidth) 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 &, int &left, int &right, int &top, int &bottom) const [virtual] Return margins around the texts
- Parameters:
left Return 0
right Return 0
top Return 0
bottom Return 0
Implements QwtTextEngine.
QSize QwtMathMLTextEngine::textSize (const QFont &font, intflags, 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.
Author
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