Qwt User's Guide: QwtPlainTextEngine Class Reference

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QwtPlainTextEngine Class Reference

A text engine for plain texts. More...

#include <qwt_text_engine.h>

Inheritance diagram for QwtPlainTextEngine:
[legend]

List of all members.

Public Member Functions

 QwtPlainTextEngine ()
virtual ~QwtPlainTextEngine ()
virtual int heightForWidth (const QFont &font, int flags, const QString &text, int width) const
virtual QSize textSize (const QFont &font, int flags, const QString &text) const
virtual void draw (QPainter *painter, const QRect &rect, int flags, const QString &text) const
virtual bool mightRender (const QString &) const
virtual void textMargins (const QFont &, const QString &, int &left, int &right, int &top, int &bottom) const

Detailed Description

A text engine for plain texts.

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

Constructor & Destructor Documentation

QwtPlainTextEngine::QwtPlainTextEngine (  ) 

Constructor.

QwtPlainTextEngine::~QwtPlainTextEngine (  )  [virtual]

Destructor.

Member Function Documentation

void QwtPlainTextEngine::draw ( QPainter *  painter,
const QRect &  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.

int QwtPlainTextEngine::heightForWidth ( const QFont &  font,
int  flags,
const QString &  text,
int  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 &  ,
int &  left,
int &  right,
int &  top,
int &  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.

QSize 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.

Generated on Wed Sep 2 18:37:25 2009 for Qwt User's Guide by  doxygen 1.6.1
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