The class ImageLutWidget defines a widget controling the Look Up Table of an instance of ImageComponent. More...

#include <ImageLutWidget.h>

Inherits QWidget.

Public Member Functions
	ImageLutWidget (QWidget *parent=nullptr)
	Default construtor. More...

void	updateComponent (camitk::ImageComponent *)
	load the LUT data using the LUT from the image component More...

	~ImageLutWidget () override
	destructor More...

Protected Member Functions
void	resizeEvent (QResizeEvent *) override
	overwritten from QWidget to ensure fit in view, see fitView() More...

void	showEvent (QShowEvent *) override
	overwritten from QWidget to ensure fit in view, see fitView() More...

Private Slots
void	applyLUT ()
	Update the component LUT using the GUI values. More...

void	invertButtonClicked ()
	Slot called when the invert button is clicked. More...

void	lineEditLUTLevelChanged ()
	Slot called when the line edit for the lut level has changed. More...

void	lineEditLUTWindowChanged ()
	Slot called when the line edit for the window width has changed. More...

virtual void	resetLUT ()
	Slot that reset changed applied to the LUT. More...

void	setMaxColor ()
	slot called when the max color button is clicked More...

void	setMinColor ()
	slot called when the min color button is clicked More...

void	sliderLUTLevelChanged (int)
	Slot called when the slider for the lut level has changed. More...

void	sliderLUTWindowChanged (int)
	Slot called when the slider for the window width has changed. More...

Private Member Functions
void	blockAllSignals (bool)
	block/unblock signals for all the GUI widgets More...

void	draw ()
	draws the histogram and LUT graphic representation More...

template<class DATATYPE >
void	fillHistogramTable (DATATYPE *data, unsigned int dataDim, DATATYPE minVal, DATATYPE maxVal)
	fill the data for the histogram More...

void	fitView ()
	ensure that all graphics are completely visible and only that More...

void	initLevelGUI (int min, int max, int value)
	Init level slider and text with its minimum, maximum and current value. More...

void	initSlider (QSlider *slider, int min, int max, int value)
	init a slider More...

void	initWindowGUI (int min, int max, int value)
	Init window slider and text with its minimum, maximum and current value. More...

void	updateGradient ()
	update the gradient display in the widget More...

Private Attributes
double *	greyLevels
	Table containing histogram bins. More...

double	highestGreyLevel
	highest number of grey level (highest value in greyLevels array) More...

bool	invert
	does the user asked for an invert LUT More...

double	lutMax
	Min the possible data value (given by the data type of the image) More...

double	lutMin
	Min the possible data value (given by the data type of the image) More...

camitk::ImageComponent *	myComponent
	the current ImageComponent More...

unsigned int	nbHistoBins
	size of greyLevels More...

QGraphicsRectItem *	sceneRectItem
	the graphics item around all other item in the graphics view More...

Ui::ui_ImageLutWidget	ui
	the Qt GUI (build by ImageLutWidget.ui) More...

Detailed Description

The class ImageLutWidget defines a widget controling the Look Up Table of an instance of ImageComponent.

Note: The ui is defined in the corresponding ImageLutWidget.ui

Constructor & Destructor Documentation

◆ ImageLutWidget()

ImageLutWidget::ImageLutWidget ( QWidget * parent = nullptr )

Default construtor.

References applyLUT(), greyLevels, initSlider(), invertButtonClicked(), lineEditLUTLevelChanged(), lineEditLUTWindowChanged(), lutMax, lutMin, myComponent, nbHistoBins, resetLUT(), setMaxColor(), setMinColor(), sliderLUTLevelChanged(), sliderLUTWindowChanged(), and ui.

◆ ~ImageLutWidget()

ImageLutWidget::~ImageLutWidget ( )

override

destructor

References greyLevels.

Member Function Documentation

◆ applyLUT

void ImageLutWidget::applyLUT ( )

privateslot

Update the component LUT using the GUI values.

References draw(), camitk::ImageComponent::getLut(), invert, myComponent, camitk::ImageComponent::refresh(), and ui.

Referenced by ImageLutWidget(), invertButtonClicked(), lineEditLUTLevelChanged(), lineEditLUTWindowChanged(), resetLUT(), setMaxColor(), setMinColor(), sliderLUTLevelChanged(), sliderLUTWindowChanged(), and updateComponent().

◆ blockAllSignals()

void ImageLutWidget::blockAllSignals ( bool block )

private

block/unblock signals for all the GUI widgets

References ui.

Referenced by lineEditLUTLevelChanged(), lineEditLUTWindowChanged(), resetLUT(), sliderLUTLevelChanged(), sliderLUTWindowChanged(), and updateComponent().

◆ draw()

void ImageLutWidget::draw ( )

private

draws the histogram and LUT graphic representation

References fitView(), camitk::ImageComponent::getImageData(), camitk::ImageComponent::getLut(), greyLevels, highestGreyLevel, lutMax, lutMin, myComponent, nbHistoBins, sceneRectItem, and ui.

Referenced by applyLUT().

◆ fillHistogramTable()

template<class DATATYPE >

void ImageLutWidget::fillHistogramTable	(	DATATYPE *	data,
		unsigned int	dataDim,
		DATATYPE	minVal,
		DATATYPE	maxVal
	)

private

fill the data for the histogram

References CAMITK_ERROR, greyLevels, highestGreyLevel, and nbHistoBins.

◆ fitView()

void ImageLutWidget::fitView ( )

private

ensure that all graphics are completely visible and only that

References sceneRectItem, and ui.

Referenced by draw(), resizeEvent(), and showEvent().

◆ initLevelGUI()

void ImageLutWidget::initLevelGUI	(	int	min,
		int	max,
		int	value
	)

private

Init level slider and text with its minimum, maximum and current value.

References initSlider(), and ui.

Referenced by resetLUT(), and updateComponent().

◆ initSlider()

void ImageLutWidget::initSlider	(	QSlider *	slider,
		int	min,
		int	max,
		int	value
	)

private

init a slider

Referenced by ImageLutWidget(), initLevelGUI(), and initWindowGUI().

◆ initWindowGUI()

void ImageLutWidget::initWindowGUI	(	int	min,
		int	max,
		int	value
	)

private

Init window slider and text with its minimum, maximum and current value.

References initSlider(), and ui.

Referenced by resetLUT(), and updateComponent().

◆ invertButtonClicked

void ImageLutWidget::invertButtonClicked ( )

privateslot

Slot called when the invert button is clicked.

References applyLUT(), invert, and updateGradient().

Referenced by ImageLutWidget().

◆ lineEditLUTLevelChanged

void ImageLutWidget::lineEditLUTLevelChanged ( )

privateslot

Slot called when the line edit for the lut level has changed.

References applyLUT(), blockAllSignals(), and ui.

Referenced by ImageLutWidget().

◆ lineEditLUTWindowChanged

void ImageLutWidget::lineEditLUTWindowChanged ( )

privateslot

Slot called when the line edit for the window width has changed.

References applyLUT(), blockAllSignals(), and ui.

Referenced by ImageLutWidget().

◆ resetLUT

void ImageLutWidget::resetLUT ( )

privatevirtualslot

Slot that reset changed applied to the LUT.

References applyLUT(), blockAllSignals(), initLevelGUI(), initWindowGUI(), invert, lutMax, lutMin, and ui.

Referenced by ImageLutWidget().

◆ resizeEvent()

void ImageLutWidget::resizeEvent ( QResizeEvent * )

overrideprotected

overwritten from QWidget to ensure fit in view, see fitView()

References fitView().

◆ setMaxColor

void ImageLutWidget::setMaxColor ( )

privateslot

slot called when the max color button is clicked

References applyLUT(), ui, and updateGradient().

Referenced by ImageLutWidget().

◆ setMinColor

void ImageLutWidget::setMinColor ( )

privateslot

slot called when the min color button is clicked

References applyLUT(), ui, and updateGradient().

Referenced by ImageLutWidget().

◆ showEvent()

void ImageLutWidget::showEvent ( QShowEvent * )

overrideprotected

overwritten from QWidget to ensure fit in view, see fitView()

References fitView().

◆ sliderLUTLevelChanged

void ImageLutWidget::sliderLUTLevelChanged ( int level )

privateslot

Slot called when the slider for the lut level has changed.

References applyLUT(), blockAllSignals(), and ui.

Referenced by ImageLutWidget().

◆ sliderLUTWindowChanged

void ImageLutWidget::sliderLUTWindowChanged ( int window )

privateslot

Slot called when the slider for the window width has changed.

References applyLUT(), blockAllSignals(), and ui.

Referenced by ImageLutWidget().

◆ updateComponent()

void ImageLutWidget::updateComponent ( camitk::ImageComponent * comp )

load the LUT data using the LUT from the image component

References applyLUT(), blockAllSignals(), camitk::ImageComponent::getImageData(), camitk::ImageComponent::getLut(), greyLevels, initLevelGUI(), initWindowGUI(), invert, lutMax, lutMin, myComponent, nbHistoBins, ui, and updateGradient().

◆ updateGradient()

void ImageLutWidget::updateGradient ( )

private

update the gradient display in the widget

References ui.

Referenced by invertButtonClicked(), setMaxColor(), setMinColor(), and updateComponent().

Member Data Documentation

◆ greyLevels

double* ImageLutWidget::greyLevels

private

Table containing histogram bins.

Note: use double as it can have a high number of pixel of the same number

Referenced by draw(), fillHistogramTable(), ImageLutWidget(), updateComponent(), and ~ImageLutWidget().

◆ highestGreyLevel

double ImageLutWidget::highestGreyLevel

private

highest number of grey level (highest value in greyLevels array)

Note: use double as it can have a high number of pixel of the same number

Referenced by draw(), and fillHistogramTable().

◆ invert

bool ImageLutWidget::invert

private

does the user asked for an invert LUT

Referenced by applyLUT(), invertButtonClicked(), resetLUT(), and updateComponent().

◆ lutMax

double ImageLutWidget::lutMax

private

Min the possible data value (given by the data type of the image)

Referenced by draw(), ImageLutWidget(), resetLUT(), and updateComponent().

◆ lutMin

double ImageLutWidget::lutMin

private

Min the possible data value (given by the data type of the image)

Referenced by draw(), ImageLutWidget(), resetLUT(), and updateComponent().

◆ myComponent

camitk::ImageComponent* ImageLutWidget::myComponent

private

the current ImageComponent

Referenced by applyLUT(), draw(), ImageLutWidget(), and updateComponent().

◆ nbHistoBins

unsigned int ImageLutWidget::nbHistoBins

private

size of greyLevels

Note: the maximum number of histogram bins is UINT_MAX

Referenced by draw(), fillHistogramTable(), ImageLutWidget(), and updateComponent().

◆ sceneRectItem

QGraphicsRectItem* ImageLutWidget::sceneRectItem

private

the graphics item around all other item in the graphics view

Referenced by draw(), and fitView().

◆ ui

Ui::ui_ImageLutWidget ImageLutWidget::ui

private

the Qt GUI (build by ImageLutWidget.ui)

Referenced by applyLUT(), blockAllSignals(), draw(), fitView(), ImageLutWidget(), initLevelGUI(), initWindowGUI(), lineEditLUTLevelChanged(), lineEditLUTWindowChanged(), resetLUT(), setMaxColor(), setMinColor(), sliderLUTLevelChanged(), sliderLUTWindowChanged(), updateComponent(), and updateGradient().

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

Public Member Functions

Protected Member Functions

Private Slots

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ImageLutWidget()

◆ ~ImageLutWidget()

Member Function Documentation

◆ applyLUT

◆ blockAllSignals()

◆ draw()

◆ fillHistogramTable()

◆ fitView()

◆ initLevelGUI()

◆ initSlider()

◆ initWindowGUI()

◆ invertButtonClicked

◆ lineEditLUTLevelChanged

◆ lineEditLUTWindowChanged

◆ resetLUT

◆ resizeEvent()

◆ setMaxColor

◆ setMinColor

◆ showEvent()

◆ sliderLUTLevelChanged

◆ sliderLUTWindowChanged

◆ updateComponent()

◆ updateGradient()

Member Data Documentation

◆ greyLevels

◆ highestGreyLevel

◆ invert

◆ lutMax

◆ lutMin

◆ myComponent

◆ nbHistoBins

◆ sceneRectItem

◆ ui