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 
17 package com.android.wallpaper.picker.customization.ui.view
18 
19 import android.content.Context
20 import android.util.AttributeSet
21 import androidx.cardview.widget.CardView
22 import com.android.wallpaper.R
23 import com.android.wallpaper.util.ScreenSizeCalculator
24 
25 /**
26  * [CardView] that calculates the corner radius dynamically when on measure. We use the ratio
27  * between its height and the screen height to calculate the corner radius.
28  */
29 class PreviewCardView(
30     context: Context,
31     attrs: AttributeSet?,
32 ) : CardView(context, attrs) {
33 
34     // This should be the corner radius when the preview height is the screen height
35     private val previewCornerRadius = resources.getDimensionPixelSize(R.dimen.preview_corner_radius)
36 
onMeasurenull37     override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
38         super.onMeasure(widthMeasureSpec, heightMeasureSpec)
39         val screenHeight = ScreenSizeCalculator.getInstance().getScreenHeight(context)
40         radius = previewCornerRadius * (measuredHeight.toFloat() / screenHeight.toFloat())
41     }
42 }
43