1 /*
<lambda>null2  * Copyright 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 androidx.graphics.lowlatency
18 
19 import android.graphics.Canvas
20 import android.graphics.ColorFilter
21 import android.graphics.Paint
22 import android.graphics.PixelFormat
23 import android.graphics.drawable.Drawable
24 
25 class LinesDrawable : Drawable() {
26 
27     private var mLines: FloatArray? = null
28     private val mPaint = Paint(Paint.ANTI_ALIAS_FLAG).apply { strokeWidth = 5f }
29 
30     var strokeWidth: Float
31         get() = mPaint.strokeWidth
32         set(value) {
33             mPaint.strokeWidth = value
34         }
35 
36     override fun draw(canvas: Canvas) {
37         mLines?.let { lines ->
38             for (i in lines.indices step 4) {
39                 canvas.drawLine(lines[i], lines[i + 1], lines[i + 2], lines[i + 3], mPaint)
40             }
41         }
42     }
43 
44     fun setLines(lines: FloatArray) {
45         mLines = lines
46         invalidateSelf()
47     }
48 
49     fun setColor(color: Int) {
50         mPaint.color = color
51         invalidateSelf()
52     }
53 
54     override fun setAlpha(alpha: Int) {
55         mPaint.alpha = alpha
56         invalidateSelf()
57     }
58 
59     override fun setColorFilter(colorFilter: ColorFilter?) {
60         mPaint.colorFilter = colorFilter
61         invalidateSelf()
62     }
63 
64     @Suppress("OVERRIDE_DEPRECATION") // b/407504449
65     override fun getOpacity(): Int = PixelFormat.TRANSLUCENT
66 }
67