1 /*
2  * Copyright (C) 2019 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 package com.android.wallpaper.testing;
17 
18 import android.graphics.Bitmap;
19 import android.graphics.Rect;
20 
21 import com.android.wallpaper.asset.Asset;
22 import com.android.wallpaper.asset.Asset.BitmapReceiver;
23 import com.android.wallpaper.module.BitmapCropper;
24 
25 /**
26  * Test double for BitmapCropper.
27  */
28 public class TestBitmapCropper implements BitmapCropper {
29 
30     private boolean mFailNextCall;
31 
TestBitmapCropper()32     public TestBitmapCropper() {
33         mFailNextCall = false;
34     }
35 
36     @Override
cropAndScaleBitmap(Asset asset, float scale, Rect cropRect, Callback callback)37     public void cropAndScaleBitmap(Asset asset, float scale, Rect cropRect,
38             Callback callback) {
39         if (mFailNextCall) {
40             callback.onError(null /* throwable */);
41             return;
42         }
43         // Crop rect in pixels of source image.
44         Rect scaledCropRect = new Rect(
45                 Math.round((float) cropRect.left / scale),
46                 Math.round((float) cropRect.top / scale),
47                 Math.round((float) cropRect.right / scale),
48                 Math.round((float) cropRect.bottom / scale));
49 
50         asset.decodeBitmapRegion(scaledCropRect, cropRect.width(), cropRect.height(),
51                 new BitmapReceiver() {
52                     @Override
53                     public void onBitmapDecoded(Bitmap bitmap) {
54                         callback.onBitmapCropped(bitmap);
55                     }
56                 });
57     }
58 }
59