Qwt User's Guide 5.2.2
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Text Engine for the MathML renderer of the Qt solutions package. More...
#include <qwt_mathml_text_engine.h>
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 () |
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());
QwtMathMLTextEngine::QwtMathMLTextEngine | ( | ) |
Constructor.
QwtMathMLTextEngine::~QwtMathMLTextEngine | ( | ) | [virtual] |
Destructor.
void QwtMathMLTextEngine::draw | ( | QPainter * | painter, |
const QRect & | rect, | ||
int | flags, | ||
const QString & | text | ||
) | const [virtual] |
Draw the text in a clipping rectangle
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, |
int | flags, | ||
const QString & | text, | ||
int | width | ||
) | const [virtual] |
Find the height for a given width
font | Font of the text |
flags | Bitwise OR of the flags used like in QPainter::drawText |
text | Text to be rendered |
width | Width |
Implements QwtTextEngine.
bool QwtMathMLTextEngine::mightRender | ( | const QString & | text | ) | const [virtual] |
Test if a string can be rendered by QwtMathMLTextEngine
text | Text to be tested |
Implements QwtTextEngine.
void QwtMathMLTextEngine::textMargins | ( | const QFont & | , |
const QString & | , | ||
int & | left, | ||
int & | right, | ||
int & | top, | ||
int & | bottom | ||
) | const [virtual] |
Return margins around the texts
left | Return 0 |
right | Return 0 |
top | Return 0 |
bottom | Return 0 |
Implements QwtTextEngine.
QSize QwtMathMLTextEngine::textSize | ( | const QFont & | font, |
int | flags, | ||
const QString & | text | ||
) | const [virtual] |
Returns the size, that is needed to render text
font | Font of the text |
flags | Bitwise OR of the flags used like in QPainter::drawText |
text | Text to be rendered |
Implements QwtTextEngine.