Package com.jgoodies.animation

Class AnimationFunctions.InterpolatedAnimationFunction<T>

java.lang.Object

com.jgoodies.animation.AbstractAnimationFunction<T>

com.jgoodies.animation.AnimationFunctions.InterpolatedAnimationFunction<T>

All Implemented Interfaces:

AnimationFunction<T>

Enclosing class:

AnimationFunctions

private static final class AnimationFunctions.InterpolatedAnimationFunction<T>
extends AbstractAnimationFunction<T>

Helper class for interpolation based animation functions.

Field Summary

Fields

Modifier and Type	Field	Description
private float[]	keyTimes
private AnimationFunctions.InterpolationMode	mode
private T[]	values

Constructor Summary

Constructors

Modifier	Constructor	Description
private	InterpolatedAnimationFunction(long duration, T[] values, float[] keyTimes, AnimationFunctions.InterpolationMode mode)

Method Summary

Modifier and Type	Method	Description
private static void	checkValidKeyTimes(int valuesLength, float[] theKeyTimes)
private T	discreteValueAt(long time)
private int	indexAt(long time, int intervalCount)
private T	interpolateLinear(T value1, T value2, long time, long duration)	Currently we provide only linear interpolations that are based on floats.
private T	linearValueAt(long time)
T	valueAt(long time)	Returns the function value at a given time in the valid time interval.

Methods inherited from class com.jgoodies.animation.AbstractAnimationFunction

checkTimeRange, duration

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

keyTimes

private final float[] keyTimes

mode

private final AnimationFunctions.InterpolationMode mode

values

private final T[] values

Constructor Detail

InterpolatedAnimationFunction

private InterpolatedAnimationFunction(long duration,
                                      T[] values,
                                      float[] keyTimes,
                                      AnimationFunctions.InterpolationMode mode)

Method Detail

checkValidKeyTimes

private static void checkValidKeyTimes(int valuesLength,
                                       float[] theKeyTimes)

discreteValueAt

private T discreteValueAt(long time)

indexAt

private int indexAt(long time,
                    int intervalCount)

interpolateLinear

private T interpolateLinear(T value1,
                            T value2,
                            long time,
                            long duration)

Currently we provide only linear interpolations that are based on floats.

Parameters:

value1 - the first interpolation key point

value2 - the second interpolation key point

time - the time to get an interpolated value for

duration - the duration of the whole animation

Returns:

the interpolated value at the given time

linearValueAt

private T linearValueAt(long time)

valueAt

public T valueAt(long time)

Description copied from interface: AnimationFunction

Returns the function value at a given time in the valid time interval. The value is undefined for times outside this function's time interval. An implementation may throw an exception, if this method called with a time outside the time interval.

Parameters:

time - the time used to determine the animation effect

Returns:

the function value at the given time