com.google.gwt.touch.client

Class Momentum.State

java.lang.Object

com.google.gwt.touch.client.Momentum.State

Enclosing interface:

Momentum

public static class Momentum.State
extends Object

A snapshot of the current state.

Constructor Summary

Constructors

Constructor and Description
State(Point initialPosition, Point initialVelocity) Construct a new Momentum.State.

Method Summary

Modifier and Type	Method and Description
int	getCumulativeElapsedMillis() Get the cumulative elapsed time in milliseconds since momentum took over.
int	getElapsedMillis() Get the elapsed time in milliseconds since the last time the state was updated.
Point	getInitialPosition() Get the initial position when the momentum took over.
Point	getInitialVelocity() Get the initial velocity in pixels per millisecond when the momentum took over.
Point	getPosition() Get the current position.
Point	getVelocity() Get the current velocity in pixels per millisecond.
void	setPosition(Point position) Set the current position.
void	setVelocity(Point velocity) Get the current velocity in pixels per millisecond.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

State

public State(Point initialPosition,
             Point initialVelocity)

Construct a new Momentum.State.

Parameters:

initialPosition - the initial position, which is also set to the current position

initialVelocity - the initial velocity in pixels per millisecond, which is also set to the current velocity

Method Detail

getCumulativeElapsedMillis

public int getCumulativeElapsedMillis()

Get the cumulative elapsed time in milliseconds since momentum took over.

Returns:

the elapsed time in milliseconds

getElapsedMillis

public int getElapsedMillis()

Get the elapsed time in milliseconds since the last time the state was updated.

Returns:

the elapsed time in milliseconds

getInitialPosition

public Point getInitialPosition()

Get the initial position when the momentum took over.

Returns:

the initial position

getInitialVelocity

public Point getInitialVelocity()

Get the initial velocity in pixels per millisecond when the momentum took over.

Returns:

the initial velocity

getPosition

public Point getPosition()

Get the current position.

Returns:

the current position

getVelocity

public Point getVelocity()

Get the current velocity in pixels per millisecond.

Returns:

the current velocity

setPosition

public void setPosition(Point position)

Set the current position.

Parameters:

position - set the current position

setVelocity

public void setVelocity(Point velocity)

Get the current velocity in pixels per millisecond.

Parameters:

velocity - set the current velocity