1 /* 2 * Copyright (C) 2023 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 import android.annotation.NonNull; 19 20 /** Provides and interface to create easing functions */ 21 public class GeneralEasing extends Easing { 22 @NonNull float[] mEasingData = new float[0]; 23 @NonNull Easing mEasingCurve = new CubicEasing(CUBIC_STANDARD); 24 25 /** 26 * Set the curve based on the float encoding of it 27 * 28 * @param data the float encoding of the curve 29 */ setCurveSpecification(@onNull float[] data)30 public void setCurveSpecification(@NonNull float[] data) { 31 mEasingData = data; 32 createEngine(); 33 } 34 35 /** 36 * Get the float encoding of the curve 37 * 38 * @return the float encoding of the curve 39 */ getCurveSpecification()40 public @NonNull float[] getCurveSpecification() { 41 return mEasingData; 42 } 43 createEngine()44 void createEngine() { 45 int type = Float.floatToRawIntBits(mEasingData[0]); 46 switch (type) { 47 case CUBIC_STANDARD: 48 case CUBIC_ACCELERATE: 49 case CUBIC_DECELERATE: 50 case CUBIC_LINEAR: 51 case CUBIC_ANTICIPATE: 52 case CUBIC_OVERSHOOT: 53 mEasingCurve = new CubicEasing(type); 54 break; 55 case CUBIC_CUSTOM: 56 mEasingCurve = 57 new CubicEasing( 58 mEasingData[1], mEasingData[2], mEasingData[3], mEasingData[5]); 59 break; 60 case EASE_OUT_BOUNCE: 61 mEasingCurve = new BounceCurve(type); 62 break; 63 } 64 } 65 66 /** get the value at point x */ 67 @Override get(float x)68 public float get(float x) { 69 return mEasingCurve.get(x); 70 } 71 72 /** get the slope of the easing function at at x */ 73 @Override getDiff(float x)74 public float getDiff(float x) { 75 return mEasingCurve.getDiff(x); 76 } 77 78 @Override getType()79 public int getType() { 80 return mEasingCurve.getType(); 81 } 82 } 83