com.jgoodies.animation
Interface AnimationFunction<T>

Type Parameters:

T - the return type of this function

All Known Implementing Classes:

AbstractAnimationFunction

public interface AnimationFunction<T>

This interface describes time-based animation functions by their duration and a mapping from time to arbitrary values. These values are typically attribute values of an animation target, for example the width of a rectangle, the x position of a point, the color of a line, the alpha value of a panel.

For each time in the function's valid time interval, the #valueAt method returns a value that can be used to apply an animation effect in an Animation.

Version:

$Revision: 1.8 $

Author:

Karsten Lentzsch

See Also:

AnimationFunctions, AbstractAnimationFunction

Method Summary

long	duration() Returns the length of this function's valid time interval.
T	valueAt(long time) Returns the function value at a given time in the valid time interval.

Method Detail

duration

long duration()

Returns the length of this function's valid time interval.

Returns:

the length of this function's valid time interval

valueAt

T valueAt(long time)

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