1 /*
2  * Copyright (C) 2021 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.car.settings.common;
18 
19 import android.graphics.Bitmap;
20 import android.graphics.Canvas;
21 import android.graphics.drawable.BitmapDrawable;
22 import android.graphics.drawable.Drawable;
23 import android.graphics.drawable.Icon;
24 
25 /** Contains utility functions to operate on Drawables. */
26 public class DrawableUtil {
27 
DrawableUtil()28     private DrawableUtil() {
29     }
30 
31     /**
32      * Create an {@link Icon} object from a {@link Drawable}.
33      */
createIconFromDrawable(Drawable drawable)34     public static Icon createIconFromDrawable(Drawable drawable) {
35         return Icon.createWithBitmap(createBitmapFromDrawable(drawable));
36     }
37 
38     /**
39      * Create an {@link Bitmap} image from a {@link Drawable}.
40      */
createBitmapFromDrawable(Drawable drawable)41     public static Bitmap createBitmapFromDrawable(Drawable drawable) {
42         Bitmap bitmap;
43         if (drawable instanceof BitmapDrawable) {
44             bitmap = ((BitmapDrawable) drawable).getBitmap();
45         } else {
46             int width = drawable.getIntrinsicWidth();
47             int height = drawable.getIntrinsicHeight();
48             bitmap = createBitmap(drawable,
49                     width > 0 ? width : 1,
50                     height > 0 ? height : 1);
51         }
52         return bitmap;
53     }
54 
createBitmap(Drawable drawable, int width, int height)55     private static Bitmap createBitmap(Drawable drawable, int width, int height) {
56         Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
57         Canvas canvas = new Canvas(bitmap);
58         drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
59         drawable.draw(canvas);
60         return bitmap;
61     }
62 }
63