1 /*
2  * Copyright (C) 2022 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 
17 package com.android.systemui.biometrics.udfps
18 
19 import android.graphics.Rect
20 import android.os.Build
21 import android.util.Log
22 import com.android.systemui.dagger.SysUISingleton
23 
24 /** Returns whether the touch coordinates are within the sensor's bounding box. */
25 @SysUISingleton
26 class BoundingBoxOverlapDetector(private val targetSize: Float) : OverlapDetector {
27 
28     private val TAG = "BoundingBoxOverlapDetector"
29 
isGoodOverlapnull30     override fun isGoodOverlap(
31         touchData: NormalizedTouchData,
32         nativeSensorBounds: Rect,
33         nativeOverlayBounds: Rect,
34     ): Boolean {
35         val scaledRadius = (nativeSensorBounds.width() / 2) * targetSize
36         val scaledSensorBounds =
37             Rect(
38                 (nativeSensorBounds.centerX() - scaledRadius).toInt(),
39                 (nativeSensorBounds.centerY() - scaledRadius).toInt(),
40                 (nativeSensorBounds.centerX() + scaledRadius).toInt(),
41                 (nativeSensorBounds.centerY() + scaledRadius).toInt(),
42             )
43 
44         return touchData.isWithinBounds(scaledSensorBounds)
45     }
46 }
47