1 /*
2  * Copyright (C) 2013 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.test.hwui;
18 
19 import android.app.Activity;
20 import android.content.Context;
21 import android.graphics.Bitmap;
22 import android.graphics.Canvas;
23 import android.graphics.Matrix;
24 import android.graphics.Rect;
25 import android.graphics.drawable.BitmapDrawable;
26 import android.graphics.drawable.Drawable;
27 import android.os.Bundle;
28 import android.view.View;
29 import com.android.internal.R;
30 
31 @SuppressWarnings({"UnusedDeclaration"})
32 public class AssetsAtlasActivity extends Activity {
33     @Override
onCreate(Bundle savedInstanceState)34     protected void onCreate(Bundle savedInstanceState) {
35         super.onCreate(savedInstanceState);
36         setContentView(new BitmapsView(this));
37     }
38 
39     static class BitmapsView extends View {
40         private final Bitmap mBitmap;
41 
BitmapsView(Context c)42         BitmapsView(Context c) {
43             super(c);
44 
45             Drawable d = c.getResources().getDrawable(R.drawable.star_big_on);
46             mBitmap = ((BitmapDrawable) d).getBitmap();
47         }
48 
49         @Override
onDraw(Canvas canvas)50         protected void onDraw(Canvas canvas) {
51             super.onDraw(canvas);
52 
53             final Matrix matrix = new Matrix();
54             matrix.setScale(0.5f, 0.5f);
55 
56             final Rect src = new Rect(0, 0, mBitmap.getWidth() / 2, mBitmap.getHeight() / 2);
57             final Rect dst = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight());
58 
59             canvas.drawBitmap(mBitmap, 0.0f, 0.0f, null);
60             canvas.translate(0.0f, mBitmap.getHeight());
61             canvas.drawBitmap(mBitmap, matrix, null);
62             canvas.translate(0.0f, mBitmap.getHeight());
63             canvas.drawBitmap(mBitmap, src, dst, null);
64         }
65     }
66 }
67