TransferFunctionDisplayWidget Class Reference

#include <ImFusion/GUI/TransferFunctionWidget.h>

Qt Widget for displaying an overview of a transfer function and providing basic interaction. More...

Inheritance diagram for TransferFunctionDisplayWidget:

Detailed Description

Qt Widget for displaying an overview of a transfer function and providing basic interaction.

Usually not intended to be used directly, consider using the TransferFunctionWidget instead.

See also

TransferFunctionWidget

Public Types
using	HistogramType = TypedImage<unsigned int>

Signals
void	zoomRangeChanged (double, double)
void	mouseIntensityChanged (double)

Public Member Functions
	TransferFunctionDisplayWidget (TransferFunction *transferFunction, QWidget *parent=nullptr)
	Standard constructor, creates a widget to setup the given transfer function.
	~TransferFunctionDisplayWidget () override
	Virtual Destructor.
bool	performLoadAction ()
	Loads a transfer function from a file selected by the user.
bool	performSaveAction ()
	Saves the current transfer function to a file specified by the user.
void	resetZoom ()
	Resets the zoom to fit the entire intensity range.
Public Member Functions inherited from SignalReceiver
	SignalReceiver ()=default
	Default constructor.
	SignalReceiver (const SignalReceiver &other)
	Copy constructor, does not copy any existing signal connections from other.
SignalReceiver &	operator= (SignalReceiver rhs)
	Assignment operator, disconnects all existing connections, does not copy any existing signal connections from rhs.
virtual	~SignalReceiver ()
	Virtual destructor disconnects from all connected signals.

Getters/Setters
enum	Mode { Mode2D , Mode3D }
void	setCompactMode (bool value)
bool	compactMode () const
	Returns the flag whether to use the compact mode or show the full widget.
void	setNonLinearOpacity (bool value)
	Sets the flag whether to show a non-linear opacity scale.
bool	nonLinearOpacity () const
	Returns the flag whether to show a non-linear opacity scale.
bool	showThumbnails () const
	Returns the flag whether to show thumbnails.
void	setShowThumbnails (bool value)
	Sets the flag whether to show thumbnails.
bool	isCheckerboardDrawn () const
	Returns the flag whether to draw the checkerboard background.
void	setDrawCheckerboard (bool value)
	Sets the flag whether to draw the checkerboard background.
Mode	mode () const
	Returns the mode, either 2D or 3D in 2D, there is an implicit black-white scale drawn over the entire window when no tissues are defined in 2D, values outside of the window are clamped as if the colorscale extended infinitely in both direction in 3D, values outside of the window are not visible at all.
void	setMode (Mode mode) const
	Sets the active mode.
void	setTransferFunction (TransferFunction *transferFunction)
	Sets the transfer function this widget manipulates, may be 0.
void	setImage (const SharedImageSet *image, int index)
	Sets the image the TF is applied to (optional, may be nullptr). Used for displaying a histogram and modifying windowing.
void	setView (GUI::View *view)
	Sets the view on which this transfer function is based (optional, may be nullptr) Used for rendering thumbnails and automatically requesting updates If the view is an instance of ImageView2D or ImageView3D, the mode of the widget is changed accordingly.

Qt-related overrides
void	paintEvent (QPaintEvent *e) override
void	mousePressEvent (QMouseEvent *e) override
void	mouseMoveEvent (QMouseEvent *e) override
void	mouseReleaseEvent (QMouseEvent *e) override
void	wheelEvent (QWheelEvent *e) override
void	leaveEvent (QEvent *e) override
void	contextMenuEvent (QContextMenuEvent *e) override
QSize	sizeHint () const override
QSize	minimumSizeHint () const override
void	hideEvent (QHideEvent *e) override

Additional Inherited Members
Protected Member Functions inherited from SignalReceiver
void	disconnectAll ()
	Disconnects all existing connections.

Constructor & Destructor Documentation

TransferFunctionDisplayWidget()

TransferFunctionDisplayWidget	(	TransferFunction *	transferFunction,
		QWidget *	parent = nullptr )

Standard constructor, creates a widget to setup the given transfer function.

Parameters

transferFunction	The transfer function this widget manipulates, may be 0
parent	Parent widget, may be 0.

Member Function Documentation

setCompactMode()

void setCompactMode

(

bool

value

)

Sets whether to use the compact mode or show the full widget. The compact mode shows an overview and allows for altering the windowing only.

setNonLinearOpacity()

void setNonLinearOpacity

(

bool

value

)

Sets the flag whether to show a non-linear opacity scale.

The non-linear scale facilitates configuring low opacities.

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

• ImFusion/GUI/TransferFunctionWidget.h