Sources_For_Linux/Qwt/doc/man/man3/QwtMathMLTextEngine.3

.TH "QwtMathMLTextEngine" 3 "Mon Dec 28 2020" "Version 6.1.6" "Qwt User's Guide" \" -*- nroff -*-
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.SH NAME
QwtMathMLTextEngine \- Text Engine for the MathML renderer of the Qt solutions package\&.  

.SH SYNOPSIS
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.PP
.PP
\fC#include <qwt_mathml_text_engine\&.h>\fP
.PP
Inherits \fBQwtTextEngine\fP\&.
.SS "Public Member Functions"

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.RI "\fBQwtMathMLTextEngine\fP ()"
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.RI "Constructor\&. "
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.RI "virtual \fB~QwtMathMLTextEngine\fP ()"
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.RI "Destructor\&. "
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.RI "virtual double \fBheightForWidth\fP (const QFont &font, int flags, const QString &text, double width) const"
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.RI "virtual QSizeF \fBtextSize\fP (const QFont &font, int flags, const QString &text) const"
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.RI "virtual void \fBdraw\fP (QPainter *painter, const QRectF &rect, int flags, const QString &text) const"
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.RI "virtual bool \fBmightRender\fP (const QString &) const"
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.RI "virtual void \fBtextMargins\fP (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const"
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.SS "Additional Inherited Members"
.SH "Detailed Description"
.PP 
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:
.PP
.PP
.nf
#include <qwt_mathml_text_engine\&.h>

QwtText::setTextEngine( QwtText::MathMLText, new QwtMathMLTextEngine() );
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.PP
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\fBSee also\fP
.RS 4
\fBQwtTextEngine\fP, \fBQwtText::setTextEngine\fP 
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\fBWarning\fP
.RS 4
Unfortunately the MathML renderer doesn't support rotating of texts\&. 
.RE
.PP

.SH "Member Function Documentation"
.PP 
.SS "void QwtMathMLTextEngine::draw (QPainter * painter, const QRectF & rect, int flags, const QString & text) const\fC [virtual]\fP"
Draw the text in a clipping rectangle
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\fBParameters\fP
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\fIpainter\fP Painter 
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\fIrect\fP Clipping rectangle 
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\fIflags\fP Bitwise OR of the flags like in for QPainter::drawText 
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\fItext\fP Text to be rendered 
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.PP

.PP
Implements \fBQwtTextEngine\fP\&.
.SS "double QwtMathMLTextEngine::heightForWidth (const QFont & font, int flags, const QString & text, double width) const\fC [virtual]\fP"
Find the height for a given width
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\fBParameters\fP
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\fIfont\fP Font of the text 
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\fIflags\fP Bitwise OR of the flags used like in QPainter::drawText 
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\fItext\fP Text to be rendered 
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\fIwidth\fP Width
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\fBReturns\fP
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Calculated height 
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.PP

.PP
Implements \fBQwtTextEngine\fP\&.
.SS "bool QwtMathMLTextEngine::mightRender (const QString & text) const\fC [virtual]\fP"
Test if a string can be rendered by \fBQwtMathMLTextEngine\fP
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\fBParameters\fP
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\fItext\fP Text to be tested 
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\fBReturns\fP
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true, if text begins with '<math>'\&. 
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.PP

.PP
Implements \fBQwtTextEngine\fP\&.
.SS "void QwtMathMLTextEngine::textMargins (const QFont &, const QString &, double & left, double & right, double & top, double & bottom) const\fC [virtual]\fP"
Return margins around the texts
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\fBParameters\fP
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\fIleft\fP Return 0 
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\fIright\fP Return 0 
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\fItop\fP Return 0 
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\fIbottom\fP Return 0 
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.PP

.PP
Implements \fBQwtTextEngine\fP\&.
.SS "QSizeF QwtMathMLTextEngine::textSize (const QFont & font, int flags, const QString & text) const\fC [virtual]\fP"
Returns the size, that is needed to render text
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\fBParameters\fP
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\fIfont\fP Font of the text 
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\fIflags\fP Bitwise OR of the flags used like in QPainter::drawText 
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\fItext\fP Text to be rendered
.RE
.PP
\fBReturns\fP
.RS 4
Caluclated size 
.RE
.PP

.PP
Implements \fBQwtTextEngine\fP\&.

.SH "Author"
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Generated automatically by Doxygen for Qwt User's Guide from the source code\&.