1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package com.android.internal.widget.remotecompose.core.operations.utilities.easing;
17 
18 /**
19  * The standard interface to Easing functions
20  */
21 public abstract class Easing {
22     int mType;
23     /**
24      * get the value at point x
25      */
get(float x)26     public abstract float get(float x);
27 
28     /**
29      * get the slope of the easing function at at x
30      */
getDiff(float x)31     public abstract float getDiff(float x);
32 
getType()33     public int getType() {
34         return mType;
35     }
36 
37     public static final int CUBIC_STANDARD = 1;
38     public static final int CUBIC_ACCELERATE = 2;
39     public static final int CUBIC_DECELERATE = 3;
40     public static final int CUBIC_LINEAR = 4;
41     public static final int CUBIC_ANTICIPATE = 5;
42     public static final int CUBIC_OVERSHOOT = 6;
43     public static final int CUBIC_CUSTOM = 11;
44     public static final int SPLINE_CUSTOM = 12;
45     public static final int EASE_OUT_BOUNCE = 13;
46     public static final int EASE_OUT_ELASTIC = 14;
47 
48 }
49