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

#include <ImageLutWidget.h>

Inheritance diagram for ImageLutWidget:

Collaboration diagram for ImageLutWidget:

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

void	showHistogramTooltip (QPointF)
	show tool tip from the histogramGraphicsRectItem 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	binComboBoxChanged (QString)
	change the number of histogram bins More...

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

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

void	levelSpinBoxChanged (double)
	Slot called when the level sping box 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	windowSliderChanged (int)
	Slot called when the slider for the window width has changed. More...

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

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

void	drawGraphics ()
	draws the histogram and LUT graphic representations More...

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

void	initLevel (double value)
	Init level slider and text with its minimum, maximum and current value. More...

void	initWindow (double value)
	Init window slider and text with its minimum, maximum and current value. More...

bool	setColor (QString whichColor, QColor newColor)
	Update minColor or maxColor attribut and set the given push button background to the given color using stylesheet depending on the whichButton QString. More...

void	updateBinComboBox ()
	update binComboBox with the actual number of bins in the model More...

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

Private Attributes
QMap< camitk::ImageComponent , ImageLutModel >	allModels
	History of all the models computed so far This optimizes the change of images currently selected by the action and avoir re-computation. More...

HistogramGraphicsRectItem *	histogramGraphicsRectItem
	the graphics item around all other item in the graphics view (needed to scale the histogram view to this rectangle and to show a tool tip when mouse hover More...

QColor	maxColor

QColor	minColor
	min and max colors More...

ImageLutModel *	model
	the current image LUT model (histogram, etc...) More...

camitk::ImageComponent *	myComponent
	the current ImageComponent 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.

Uses double data type to manage the histogram. This allows for managin properly all type of voxel datatype.

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

Constructor & Destructor Documentation

◆ ImageLutWidget()

ImageLutWidget::ImageLutWidget ( QWidget * parent = nullptr )

Default construtor.

References applyLUT(), binComboBoxChanged(), histogramGraphicsRectItem, invertButtonClicked(), levelSliderChanged(), levelSpinBoxChanged(), model, myComponent, resetLUT(), setMaxColor(), setMinColor(), ui, windowSliderChanged(), and windowSpinBoxChanged().

Here is the call graph for this function:

◆ ~ImageLutWidget()

ImageLutWidget::~ImageLutWidget ( )

override

destructor

References allModels.

Member Function Documentation

◆ applyLUT

void ImageLutWidget::applyLUT ( )

privateslot

Update the component LUT using the GUI values.

References drawGraphics(), camitk::ImageComponent::getLut(), maxColor, minColor, myComponent, camitk::ImageComponent::refresh(), and ui.

Referenced by binComboBoxChanged(), ImageLutWidget(), invertButtonClicked(), levelSliderChanged(), levelSpinBoxChanged(), resetLUT(), setMaxColor(), setMinColor(), updateComponent(), windowSliderChanged(), and windowSpinBoxChanged().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ binComboBoxChanged

void ImageLutWidget::binComboBoxChanged ( QString value )

privateslot

change the number of histogram bins

References applyLUT(), ImageLutModel::getNumberOfBins(), model, ImageLutModel::setNumberOfBins(), and updateBinComboBox().

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ blockAllSignals()

void ImageLutWidget::blockAllSignals ( bool block )

private

block/unblock signals for all the GUI widgets

References ui.

Referenced by initLevel(), initWindow(), levelSliderChanged(), levelSpinBoxChanged(), resetLUT(), setColor(), updateBinComboBox(), windowSliderChanged(), and windowSpinBoxChanged().

Here is the caller graph for this function:

◆ drawGraphics()

void ImageLutWidget::drawGraphics ( )

private

draws the histogram and LUT graphic representations

References a, ImageLutModel::getBinIndexAsDouble(), ImageLutModel::getBinValue(), camitk::Viewer::getDockWidget(), camitk::ImageComponent::getLut(), ImageLutModel::getMaxBinValue(), ImageLutModel::getNumberOfBins(), histogramGraphicsRectItem, model, myComponent, and ui.

Referenced by applyLUT().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ fitView()

void ImageLutWidget::fitView ( )

private

ensure that all graphics are completely visible and only that

References histogramGraphicsRectItem, and ui.

Referenced by resizeEvent(), and showEvent().

Here is the caller graph for this function:

◆ initLevel()

void ImageLutWidget::initLevel ( double value )

private

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

References blockAllSignals(), ImageLutModel::getMaxValue(), ImageLutModel::getMinValue(), ImageLutModel::getPercentFromLevel(), model, and ui.

Referenced by resetLUT(), and updateComponent().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ initWindow()

void ImageLutWidget::initWindow ( double value )

private

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

References blockAllSignals(), ImageLutModel::getMaxValue(), ImageLutModel::getMinValue(), ImageLutModel::getPercentFromWindow(), model, and ui.

Referenced by resetLUT(), and updateComponent().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ invertButtonClicked

void ImageLutWidget::invertButtonClicked ( )

privateslot

Slot called when the invert button is clicked.

References applyLUT(), maxColor, minColor, setColor(), and updateGradient().

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ levelSliderChanged

void ImageLutWidget::levelSliderChanged ( int level )

privateslot

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

References applyLUT(), blockAllSignals(), ImageLutModel::getLevelFromPercent(), model, and ui.

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ levelSpinBoxChanged

void ImageLutWidget::levelSpinBoxChanged ( double level )

privateslot

Slot called when the level sping box has changed.

References applyLUT(), blockAllSignals(), ImageLutModel::getPercentFromLevel(), model, and ui.

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ resetLUT

void ImageLutWidget::resetLUT ( )

privatevirtualslot

Slot that reset changed applied to the LUT.

References applyLUT(), blockAllSignals(), ImageLutModel::getMaxValue(), ImageLutModel::getMinValue(), initLevel(), initWindow(), model, setColor(), and updateGradient().

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ resizeEvent()

void ImageLutWidget::resizeEvent ( QResizeEvent * )

overrideprotected

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

References fitView().

Here is the call graph for this function:

◆ setColor()

bool ImageLutWidget::setColor	(	QString	whichColor,
		QColor	newColor
	)

private

Update minColor or maxColor attribut and set the given push button background to the given color using stylesheet depending on the whichButton QString.

Also update the transparency states. Guarantees that the UI and minColor/maxColor attributes are coherent

Parameters

whichColor	QString parameter specify which button is to set. It should be either "min" or "max"
newColor	the new color value to use

Returns: true if whichColor and color are valid and the background was set

References blockAllSignals(), maxColor, minColor, and ui.

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

Here is the call graph for this function:

Here is the caller graph for this function:

◆ setMaxColor

void ImageLutWidget::setMaxColor ( )

privateslot

slot called when the max color button is clicked

References applyLUT(), maxColor, setColor(), and updateGradient().

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ setMinColor

void ImageLutWidget::setMinColor ( )

privateslot

slot called when the min color button is clicked

References applyLUT(), minColor, setColor(), and updateGradient().

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ showEvent()

void ImageLutWidget::showEvent ( QShowEvent * )

overrideprotected

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

References fitView().

Here is the call graph for this function:

◆ showHistogramTooltip()

void ImageLutWidget::showHistogramTooltip ( QPointF mousePos )

show tool tip from the histogramGraphicsRectItem

References ImageLutModel::getBinValue(), ImageLutModel::getMaxValue(), ImageLutModel::getMinValue(), ImageLutModel::getNumberOfBins(), histogramGraphicsRectItem, and model.

Here is the call graph for this function:

◆ updateBinComboBox()

void ImageLutWidget::updateBinComboBox ( )

private

update binComboBox with the actual number of bins in the model

References blockAllSignals(), ImageLutModel::getMaxValue(), ImageLutModel::getMinValue(), ImageLutModel::getNumberOfBins(), model, and ui.

Referenced by binComboBoxChanged(), and updateComponent().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ updateComponent()

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

load the LUT data using the LUT from the image component

References allModels, applyLUT(), camitk::ImageComponent::getImageData(), camitk::ImageComponent::getLut(), initLevel(), initWindow(), model, myComponent, setColor(), updateBinComboBox(), and updateGradient().

Here is the call graph for this function:

◆ updateGradient()

void ImageLutWidget::updateGradient ( )

private

update the gradient display in the widget

References maxColor, minColor, and ui.

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

Here is the caller graph for this function:

◆ windowSliderChanged

void ImageLutWidget::windowSliderChanged ( int window )

privateslot

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

References applyLUT(), blockAllSignals(), ImageLutModel::getWindowFromPercent(), model, and ui.

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ windowSpinBoxChanged

void ImageLutWidget::windowSpinBoxChanged ( double window )

privateslot

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

References applyLUT(), blockAllSignals(), ImageLutModel::getPercentFromWindow(), model, and ui.

Referenced by ImageLutWidget().

Here is the call graph for this function:

Here is the caller graph for this function:

Member Data Documentation

◆ allModels

QMap<camitk::ImageComponent*, ImageLutModel*> ImageLutWidget::allModels

private

History of all the models computed so far This optimizes the change of images currently selected by the action and avoir re-computation.

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

◆ histogramGraphicsRectItem

HistogramGraphicsRectItem* ImageLutWidget::histogramGraphicsRectItem

private

the graphics item around all other item in the graphics view (needed to scale the histogram view to this rectangle and to show a tool tip when mouse hover

Referenced by drawGraphics(), fitView(), ImageLutWidget(), and showHistogramTooltip().

◆ maxColor

QColor ImageLutWidget::maxColor

private

Referenced by applyLUT(), invertButtonClicked(), setColor(), setMaxColor(), and updateGradient().

◆ minColor

QColor ImageLutWidget::minColor

private

min and max colors

Referenced by applyLUT(), invertButtonClicked(), setColor(), setMinColor(), and updateGradient().

◆ model

ImageLutModel* ImageLutWidget::model

private

the current image LUT model (histogram, etc...)

Referenced by binComboBoxChanged(), drawGraphics(), ImageLutWidget(), initLevel(), initWindow(), levelSliderChanged(), levelSpinBoxChanged(), resetLUT(), showHistogramTooltip(), updateBinComboBox(), updateComponent(), windowSliderChanged(), and windowSpinBoxChanged().

◆ myComponent

camitk::ImageComponent* ImageLutWidget::myComponent

private

the current ImageComponent

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

◆ ui

Ui::ui_ImageLutWidget ImageLutWidget::ui

private

the Qt GUI (build by ImageLutWidget.ui)

Referenced by applyLUT(), blockAllSignals(), drawGraphics(), fitView(), ImageLutWidget(), initLevel(), initWindow(), levelSliderChanged(), levelSpinBoxChanged(), setColor(), updateBinComboBox(), updateGradient(), windowSliderChanged(), and windowSpinBoxChanged().

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

◆ binComboBoxChanged

◆ blockAllSignals()

◆ drawGraphics()

◆ fitView()

◆ initLevel()

◆ initWindow()

◆ invertButtonClicked

◆ levelSliderChanged

◆ levelSpinBoxChanged

◆ resetLUT

◆ resizeEvent()

◆ setColor()

◆ setMaxColor

◆ setMinColor

◆ showEvent()

◆ showHistogramTooltip()

◆ updateBinComboBox()

◆ updateComponent()

◆ updateGradient()

◆ windowSliderChanged

◆ windowSpinBoxChanged

Member Data Documentation

◆ allModels

◆ histogramGraphicsRectItem

◆ maxColor

◆ minColor

◆ model

◆ myComponent

◆ ui