AssetsAtlasActivity.java revision 3b748a44c6bd2ea05fe16839caf73dbe50bd7ae9 
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
17package com.android.test.hwui;
18
19import android.app.Activity;
20import android.content.Context;
21import android.graphics.Bitmap;
22import android.graphics.Canvas;
23import android.graphics.Matrix;
24import android.graphics.Rect;
25import android.graphics.drawable.BitmapDrawable;
26import android.graphics.drawable.Drawable;
27import android.os.Bundle;
28import android.view.View;
29import com.android.internal.R;
30
31@SuppressWarnings({"UnusedDeclaration"})
32public class AssetsAtlasActivity extends Activity {
33    @Override
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
42        BitmapsView(Context c) {
43            super(c);
44
45            Drawable d = c.getResources().getDrawable(R.drawable.text_select_handle_left);
46            mBitmap = ((BitmapDrawable) d).getBitmap();
47        }
48
49        @Override
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