QwtPixelMatrix Class Reference

A bit field corresponding to the pixels of a rectangle. More...

#include <qwt_pixel_matrix.h>

Inheritance diagram for QwtPixelMatrix:

Public Member Functions
	QwtPixelMatrix (const QRect &rect)
	Constructor.
	~QwtPixelMatrix ()
	Destructor .
void	setRect (const QRect &rect)
	Set the bounding rectangle of the matrix.
QRect	rect () const
	Get the bounding rectangle.
bool	testPixel (int x, int y) const
	Test if a pixel has been set.
bool	testAndSetPixel (int x, int y, bool on)
	Set a pixel and test if a pixel has been set before.
int	index (int x, int y) const
	Calculate the index in the bit field corresponding to a position.

Detailed Description

A bit field corresponding to the pixels of a rectangle.

Constructor & Destructor Documentation

QwtPixelMatrix()

QwtPixelMatrix::QwtPixelMatrix ( const QRect &  rect )

explicit

Constructor.

~QwtPixelMatrix()

QwtPixelMatrix::~QwtPixelMatrix

(

)

Destructor .

Member Function Documentation

index()

int QwtPixelMatrix::index ( int  x, int  y  ) const

inline

Calculate the index in the bit field corresponding to a position.

rect()

QRect QwtPixelMatrix::rect

(

)

const

Get the bounding rectangle.

setRect()

void QwtPixelMatrix::setRect

(

const QRect &

rect

)

Set the bounding rectangle of the matrix.

testAndSetPixel()

bool QwtPixelMatrix::testAndSetPixel ( int  x, int  y, bool  on  )

inline

Set a pixel and test if a pixel has been set before.

testPixel()

bool QwtPixelMatrix::testPixel ( int  x, int  y  ) const

inline

Test if a pixel has been set.

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

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