#include <libosmscout-client-qt/include/osmscout/InputHandler.h>

Inheritance diagram for osmscout::MoveAccumulator:

Collaboration diagram for osmscout::MoveAccumulator:

Public Member Functions
	MoveAccumulator (int memory=100, double factor=4, double vectorLengthTreshold=5)

	~MoveAccumulator () override=default

MoveAccumulator &	operator+= (const QPointF p)

QVector2D	collect ()

Detailed Description

Helper class that accumulates move (touch events) within some time period (time defined FIFO queue). It helps to MoveHandler determine of move vector when drag gesture ends. It is used for animate move momentum.

Constructor & Destructor Documentation

◆ MoveAccumulator()

osmscout::MoveAccumulator::MoveAccumulator	(	int	memory = `100`,
		double	factor = `4`,
		double	vectorLengthTreshold = `5`
	)

inline

Parameters

memory	- in milliseconds for finger position points
factor	- momentum movement length (vector returned from collect method) will be equal to recorded length * factor
vectorLengthTreshold	- movement (between two points) have to be longer than treshold (in pixels) for change move vector

◆ ~MoveAccumulator()

osmscout::MoveAccumulator::~MoveAccumulator ( )

overridedefault

Member Function Documentation

◆ collect()

QVector2D osmscout::MoveAccumulator::collect ( )

◆ operator+=()

MoveAccumulator& osmscout::MoveAccumulator::operator+= ( const QPointF p )

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

libosmscout-client-qt/include/osmscout/InputHandler.h