Visualization::Mipmap Class Reference

Public Member Functions
bool	containsImageForScale (qreal scaleFactor)
qreal	minimalScaleFactor ()
bool	paint (QPainter *painter, int x, int y)
	Paints a precached QPixmap using painter at the specified position. More...
void	setImage (const QImage &image, const QPainter *painterToDetermineScaleFactor)
void	setImage (const QImage &image, qreal scaleFactor)
void	setImage (const QPixmap &pixmap, const QPainter *painterToDetermineScaleFactor)
void	setImage (const QPixmap &pixmap, qreal scaleFactor)
void	setMinimalScaleFactor (qreal factor)
	Sets the minimum scaling factor for which a QPixmap will be precomputed. More...

Private Attributes
qreal	minimalScaleFactor_ {0.1}
QMap< qreal, QPixmap >	scaleFactorImagesMap_

Member Function Documentation

containsImageForScale()

bool Visualization::Mipmap::containsImageForScale

(

qreal

scaleFactor

)

minimalScaleFactor()

qreal Visualization::Mipmap::minimalScaleFactor ( )

inline

paint()

bool Visualization::Mipmap::paint	(	QPainter *	painter,
		int	x,
		int	y
	)

Paints a precached QPixmap using painter at the specified position.

Returns true if an appropriately sized QPixmap was found and false otherwise.

setImage() [1/4]

void Visualization::Mipmap::setImage	(	const QImage &	image,
		const QPainter *	painterToDetermineScaleFactor
	)

setImage() [2/4]

void Visualization::Mipmap::setImage	(	const QImage &	image,
		qreal	scaleFactor
	)

setImage() [3/4]

void Visualization::Mipmap::setImage	(	const QPixmap &	pixmap,
		const QPainter *	painterToDetermineScaleFactor
	)

setImage() [4/4]

void Visualization::Mipmap::setImage	(	const QPixmap &	pixmap,
		qreal	scaleFactor
	)

setMinimalScaleFactor()

void Visualization::Mipmap::setMinimalScaleFactor ( qreal  factor )

inline

Sets the minimum scaling factor for which a QPixmap will be precomputed.

Smaller images will be based on the smallest precomputed pixmap.

Member Data Documentation

minimalScaleFactor_

qreal Visualization::Mipmap::minimalScaleFactor_ {0.1}

private

scaleFactorImagesMap_

QMap<qreal, QPixmap> Visualization::Mipmap::scaleFactorImagesMap_

private