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
17 package com.android.systemui.common.ui.view
18
19 import android.util.MathUtils
20 import android.view.MotionEvent
21
22 /**
23 * Returns the distance from the raw position of this [MotionEvent] and the given coordinates.
24 * Because this is all expected to be in the coordinate space of the display and not the view,
25 * applying mutations to the view (such as scaling animations) does not affect the distance
26 * measured.
27 * @param xOnDisplay the x coordinate relative to the display
28 * @param yOnDisplay the y coordinate relative to the display
29 * @return distance from the raw position of this [MotionEvent] and the given coordinates
30 */
rawDistanceFromnull31 fun MotionEvent.rawDistanceFrom(
32 xOnDisplay: Float,
33 yOnDisplay: Float,
34 ): Float {
35 return MathUtils.dist(this.rawX, this.rawY, xOnDisplay, yOnDisplay)
36 }
37