1 /*
   2  * Copyright (c) 2011, 2015, Oracle and/or its affiliates.
   3  * All rights reserved. Use is subject to license terms.
   4  *
   5  * This file is available and licensed under the following license:
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  *  - Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *  - Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the distribution.
  16  *  - Neither the name of Oracle Corporation nor the names of its
  17  *    contributors may be used to endorse or promote products derived
  18  *    from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 
  33 package com.javafx.experiments.utils3d.animation;
  34 
  35 import javafx.animation.Interpolator;
  36 import javafx.util.Duration;
  37 
  38 public class NumberTangentInterpolator extends Interpolator {
  39 
  40     private final double inValue, outValue;
  41     private final long inTicks, outTicks;
  42 
  43     public double getInValue() { return inValue; }
  44 
  45     public double getOutValue() { return outValue; }
  46 
  47     public double getInTicks() { return inTicks; }
  48 
  49     public double getOutTicks() { return outTicks; }
  50 
  51     public NumberTangentInterpolator(Duration inDuration, double inValue, Duration outDuration, double outValue) {
  52         this.inTicks = TickCalculation.fromDuration(inDuration);
  53         this.inValue = inValue;
  54         this.outTicks = TickCalculation.fromDuration(outDuration);
  55         this.outValue = outValue;
  56     }
  57 
  58     public NumberTangentInterpolator(Duration duration, double value) {
  59         this.outTicks = this.inTicks = TickCalculation.fromDuration(duration);
  60         this.inValue = this.outValue = value;
  61     }
  62 
  63     @Override
  64     public String toString() {
  65         return "NumberTangentInterpolator [inValue=" + inValue
  66                 + ", inDuration=" + TickCalculation.toDuration(inTicks) + ", outValue="
  67                 + outValue + ", outDuration=" + TickCalculation.toDuration(outTicks) + "]";
  68     }
  69 
  70     @Override
  71     public int hashCode() {
  72         int hash = 7;
  73         hash = 59 * hash + (int) (Double.doubleToLongBits(this.inValue) ^ (Double.doubleToLongBits(this.inValue) >>> 32));
  74         hash = 59 * hash + (int) (Double.doubleToLongBits(this.outValue) ^ (Double.doubleToLongBits(this.outValue) >>> 32));
  75         hash = 59 * hash + (int) (this.inTicks ^ (this.inTicks >>> 32));
  76         hash = 59 * hash + (int) (this.outTicks ^ (this.outTicks >>> 32));
  77         return hash;
  78     }
  79 
  80     @Override
  81     public boolean equals(Object obj) {
  82         if (obj == null) {
  83             return false;
  84         }
  85         if (getClass() != obj.getClass()) {
  86             return false;
  87         }
  88         final NumberTangentInterpolator other = (NumberTangentInterpolator) obj;
  89         if (Double.doubleToLongBits(this.inValue) != Double.doubleToLongBits(other.inValue)) {
  90             return false;
  91         }
  92         if (Double.doubleToLongBits(this.outValue) != Double.doubleToLongBits(other.outValue)) {
  93             return false;
  94         }
  95         if (this.inTicks != other.inTicks) {
  96             return false;
  97         }
  98         if (this.outTicks != other.outTicks) {
  99             return false;
 100         }
 101         return true;
 102     }
 103 
 104     @Override
 105     protected double curve(double t) {
 106         // Fallback: If NumberTangentInterpolator is used with a target, that is
 107         // not a number,
 108         // it behaves like linear interpolation.
 109         return t;
 110     }
 111 }
 112