Qwt User's Guide  6.2.0
QwtRichTextEngine Class Reference

A text engine for Qt rich texts. More...

#include <qwt_text_engine.h>

Inheritance diagram for QwtRichTextEngine:

Public Member Functions

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

Additional Inherited Members

- Protected Member Functions inherited from QwtTextEngine
 QwtTextEngine ()
 Constructor.
 

Detailed Description

A text engine for Qt rich texts.

QwtRichTextEngine renders Qt rich texts using the classes of the Scribe framework of Qt.

Definition at line 147 of file qwt_text_engine.h.

Member Function Documentation

◆ draw()

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

Draw the text in a clipping rectangle

Parameters
painterPainter
rectClipping rectangle
flagsBitwise OR of the flags like in for QPainter::drawText()
textText to be rendered

Implements QwtTextEngine.

Definition at line 305 of file qwt_text_engine.cpp.

◆ heightForWidth()

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

Find the height for a given width

Parameters
fontFont of the text
flagsBitwise OR of the flags used like in QPainter::drawText()
textText to be rendered
widthWidth
Returns
Calculated height

Implements QwtTextEngine.

Definition at line 262 of file qwt_text_engine.cpp.

◆ mightRender()

bool QwtRichTextEngine::mightRender ( const QString &  text) const
overridevirtual

Test if a string can be rendered by this text engine

Parameters
textText to be tested
Returns
Qt::mightBeRichText(text);

Implements QwtTextEngine.

Definition at line 331 of file qwt_text_engine.cpp.

◆ textMargins()

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

Return margins around the texts

Parameters
leftReturn 0
rightReturn 0
topReturn 0
bottomReturn 0

Implements QwtTextEngine.

Definition at line 344 of file qwt_text_engine.cpp.

◆ textSize()

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

Returns the size, that is needed to render text

Parameters
fontFont of the text
flagsBitwise OR of the flags used like in QPainter::drawText()
textText to be rendered
Returns
Calculated size

Implements QwtTextEngine.

Definition at line 281 of file qwt_text_engine.cpp.