inviwo::plot::BoxSelectionInteractionHandler Class Reference

Handles interaction for 2D rectangle selection/filtering Selection/Filtering callbacks are called when filtering changes. More...

#include <modules/plotting/interaction/boxselectioninteractionhandler.h>

Inheritance diagram for inviwo::plot::BoxSelectionInteractionHandler:

Public Types
using	SelectionCallbackHandle = std::shared_ptr<std::function<SelectionFunc>>
using	SelectionFunc = void(const std::vector<bool>&, bool)
	Selection/filtering-changed callback. The index of each element is given by its location (0, 1 ... n). Second argument specifies if the selection/filtering should be appended.

Public Member Functions
SelectionCallbackHandle	addFilteringChangedCallback (std::function< SelectionFunc > callback)
	Added callbacks will be called when filtering changed.
SelectionCallbackHandle	addSelectionChangedCallback (std::function< SelectionFunc > callback)
	Added callbacks will be called when selection changed.
	BoxSelectionInteractionHandler (const BoxSelectionProperty &boxSelectionSettings, std::shared_ptr< const BufferBase > xAxis, std::shared_ptr< const BufferBase > yAxis, std::function< dvec2(dvec2 p, const size2_t &dims)> screenToData)
	Handles interaction for 2D rectangle selection/filtering Selection/Filtering callbacks are called when filtering changes.
std::optional< std::array< dvec2, 2 > >	getDragRectangle () const
	Returns (lower, upper) screen space coordinates of selection rectangle, null if not active.
virtual void	invokeEvent (Event *event) override
void	reset ()
	Reset the drag rectangle.
void	setXAxisData (std::shared_ptr< const BufferBase > buffer)
void	setYAxisData (std::shared_ptr< const BufferBase > buffer)

Protected Member Functions
std::vector< bool >	boxFilter (const dvec2 &start, const dvec2 &end, const BufferBase *xAxis_, const BufferBase *yAxis_)
std::vector< bool >	boxSelect (const dvec2 &start, const dvec2 &end, const BufferBase *xAxis_, const BufferBase *yAxis_)
void	dragRectChanged (const dvec2 &start, const dvec2 &end, bool append)
	React to rectangle drag changes. Input is in data-space of each axis.

Protected Attributes
std::optional< std::array< dvec2, 2 > >	dragRect_
const BoxSelectionProperty &	dragRectSettings_
Dispatcher< SelectionFunc >	filteringChangedCallback_
std::function< dvec2(dvec2 p, const size2_t &dims)>	screenToData_
Dispatcher< SelectionFunc >	selectionChangedCallback_
std::shared_ptr< const BufferBase >	xAxis_
	! Selection/filtering
std::shared_ptr< const BufferBase >	yAxis_

Detailed Description

Handles interaction for 2D rectangle selection/filtering Selection/Filtering callbacks are called when filtering changes.

The current drag rectangle is given by getDragRectangle.

See also

DragRectangleRenderer

Constructor & Destructor Documentation

BoxSelectionInteractionHandler()

inviwo::plot::BoxSelectionInteractionHandler::BoxSelectionInteractionHandler	(	const BoxSelectionProperty &	boxSelectionSettings,
		std::shared_ptr< const BufferBase >	xAxis,
		std::shared_ptr< const BufferBase >	yAxis,
		std::function< dvec2(dvec2 p, const size2_t &dims)>	screenToData )

Handles interaction for 2D rectangle selection/filtering Selection/Filtering callbacks are called when filtering changes.

Parameters

boxSelectionSettings	use for selection/filtering/none
xAxis	data
yAxis	data
screenToData	converts screen coordinates to (x,y) data coordinates

Member Function Documentation

invokeEvent()

virtual void inviwo::plot::BoxSelectionInteractionHandler::invokeEvent ( Event * event )

overridevirtual

Reimplemented from inviwo::EventListener.

reset()

void inviwo::plot::BoxSelectionInteractionHandler::reset

(

)

Reset the drag rectangle.

See also

getDragRectangle

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

• modules/plotting/include/modules/plotting/interaction/boxselectioninteractionhandler.h