QwtPlainTextEngine Class Reference

#include <qwt_text_engine.h>

Inherits QwtTextEngine.

List of all members.

Public Member Functions
virtual void	draw (QPainter *painter, const QRectF &rect, int flags, const QString &text) const
virtual double	heightForWidth (const QFont &font, int flags, const QString &text, double width) const
virtual bool	mightRender (const QString &) const
	QwtPlainTextEngine ()
virtual void	textMargins (const QFont &, const QString &, double &left, double &right, double &top, double &bottom) const
virtual QSizeF	textSize (const QFont &font, int flags, const QString &text) const
virtual	~QwtPlainTextEngine ()

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Detailed Description

A text engine for plain texts.

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

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Constructor & Destructor Documentation

QwtPlainTextEngine::QwtPlainTextEngine

(

)

Constructor.

QwtPlainTextEngine::~QwtPlainTextEngine

(

)

[virtual]

Destructor.

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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.