com.sun.scenario.animation.shared.MultiLoopClipEnvelope Maven / Gradle / Ivy
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package com.sun.scenario.animation.shared;
import javafx.animation.Animation;
/**
* Clip envelope for multi-cycle animations. In this case, autoReverse and cyclePosition (which can be different from ticks)
* are important.
*/
abstract class MultiLoopClipEnvelope extends ClipEnvelope {
protected boolean autoReverse;
/**
* The current position of the play head in its current cycle.
* cyclePos = ticks % cycleTicks, so 0 <= cyclePos <= cycleTicks.
*/
protected long cyclePos;
protected MultiLoopClipEnvelope(Animation animation) {
super(animation);
}
protected boolean isAutoReverse() {
return autoReverse;
}
@Override
public void setAutoReverse(boolean autoReverse) {
this.autoReverse = autoReverse;
}
@Override
protected long ticksRateChange(double newRate) {
return Math.round((ticks - deltaTicks) * Math.abs(newRate / rate));
}
protected boolean isDirectionChanged(double newRate) {
return newRate * rate < 0;
}
protected boolean isDuringEvenCycle() {
return ticks % (2 * cycleTicks) < cycleTicks;
}
}