QwtTextEngine Class Reference

Abstract base class for rendering text strings. More...

#include <qwt_text_engine.h>

Inheritance diagram for QwtTextEngine:

Public Member Functions
virtual	~QwtTextEngine ()
	Destructor .
virtual double	heightForWidth (const QFont &font, int flags, const QString &text, double width) const =0
	Find the height for a given width.
virtual QSizeF	textSize (const QFont &font, int flags, const QString &text) const =0
	Return the size needed to render text.
virtual bool	mightRender (const QString &text) const =0
	Test if a string can be rendered by this text engine.
virtual void	textMargins (const QFont &font, const QString &text, double &left, double &right, double &top, double &bottom) const =0
	Return margins around the texts.
virtual void	draw (QPainter *painter, const QRectF &rect, int flags, const QString &text) const =0
	Draw the text in a clipping rectangle.

Protected Member Functions
	QwtTextEngine ()
	Protected constructor.

Detailed Description

Abstract base class for rendering text strings.

Constructor & Destructor Documentation

~QwtTextEngine()

QwtTextEngine::~QwtTextEngine ( )

virtual

Destructor .

QwtTextEngine()

QwtTextEngine::QwtTextEngine ( )

protected

Protected constructor.

Constructor .

Member Function Documentation

draw()

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

pure virtual

Draw the text in a clipping rectangle.

Implemented in QwtPlainTextEngine, and QwtRichTextEngine.

heightForWidth()

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

pure virtual

Find the height for a given width.

Implemented in QwtPlainTextEngine, and QwtRichTextEngine.

mightRender()

virtual bool QwtTextEngine::mightRender ( const QString &  text ) const

pure virtual

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

Implemented in QwtPlainTextEngine, and QwtRichTextEngine.

textMargins()

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

pure virtual

Return margins around the texts.

Implemented in QwtPlainTextEngine, and QwtRichTextEngine.

textSize()

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

pure virtual

Return the size needed to render text.

Implemented in QwtPlainTextEngine, and QwtRichTextEngine.

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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