QwtPlainTextEngine Class Reference

A text engine for plain texts. More...

#include <qwt_text_engine.h>

Inheritance diagram for QwtPlainTextEngine:

Classes
class	PrivateData

Public Member Functions
	QwtPlainTextEngine ()
	Constructor.
virtual double	heightForWidth (const QFont &font, int flags, const QString &text, double width) const override
	Find the height for a given width.
virtual QSizeF	textSize (const QFont &font, int flags, const QString &text) const override
	Return the size needed to render text.
virtual void	draw (QPainter *, const QRectF &rect, int flags, const QString &text) const override
	Draw the text in a clipping rectangle.
virtual bool	mightRender (const QString &) const override
	Test if a string can be rendered by this text engine.
virtual void	textMargins (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const override
	Return margins around the texts.
Public Member Functions inherited from QwtTextEngine
virtual	~QwtTextEngine ()
	Destructor.

Additional Inherited Members
Protected Member Functions inherited from QwtTextEngine
	QwtTextEngine ()
	Protected constructor.

Detailed Description

A text engine for plain texts.

QwtPlainTextEngine renders texts using the basic Qt classes QPainter and QFontMetrics.

See also

QwtRichTextEngine

Constructor & Destructor Documentation

QwtPlainTextEngine()

QwtPlainTextEngine::QwtPlainTextEngine

(

)

Constructor.

Destructor

Member Function Documentation

draw()

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

overridevirtual

Draw the text in a clipping rectangle.

A wrapper for QPainter::drawText.

Parameters

painter	Painter
rect	Clipping rectangle
flags	Bitwise OR of the flags used like in QPainter::drawText
text	Text to be rendered

See also

draw()

Implements QwtTextEngine.

heightForWidth()

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

overridevirtual

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

See also

textSize()

Implements QwtTextEngine.

mightRender()

bool QwtPlainTextEngine::mightRender ( const QString &  ) const

overridevirtual

Test if a string can be rendered by this text engine.

Returns

Always true. All texts can be rendered by QwtPlainTextEngine

See also

mightRender()

Implements QwtTextEngine.

textMargins()

void QwtPlainTextEngine::textMargins ( const QFont &  font, const QString &  , double &  left, double &  right, double &  top, double &  bottom  ) const

overridevirtual

Return margins around the texts.

Parameters

font	Font of the text
left	Return 0
right	Return 0
top	Return value for the top margin
bottom	Return value for the bottom margin

See also

textMargins()

Implements QwtTextEngine.

textSize()

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

overridevirtual

Return the size 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

Calculated size

See also

heightForWidth()

Implements QwtTextEngine.

---

The documentation for this class was generated from the following files:

• /home/runner/work/QWT/QWT/src/plot/qwt_text_engine.h
• /home/runner/work/QWT/QWT/src/plot/qwt_text_engine.cpp