QwtPlainTextEngine Class Reference

A text engine for plain texts. More...

#include <qwt_text_engine.h>

Inheritance diagram for QwtPlainTextEngine:

Public Member Functions
	QwtPlainTextEngine ()
	Constructor.
virtual	~QwtPlainTextEngine ()
	Destructor.
virtual double	heightForWidth (const QFont &font, int flags, const QString &text, double width) const
virtual QSizeF	textSize (const QFont &font, int flags, const QString &text) const
virtual void	draw (QPainter *painter, const QRectF &rect, int flags, const QString &text) const
	Draw the text in a clipping rectangle. More...
virtual bool	mightRender (const QString &) const
virtual void	textMargins (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const
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 plain texts.

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

Member Function Documentation

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

virtual

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

Implements QwtTextEngine.

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

virtual

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

Implements QwtTextEngine.

bool QwtPlainTextEngine::mightRender ( const QString &  ) const

virtual

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

Returns

Always true. All texts can be rendered by QwtPlainTextEngine

Implements QwtTextEngine.

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

virtual

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

Implements QwtTextEngine.

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

virtual

Returns the size, that is 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

Caluclated size

Implements QwtTextEngine.