1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.gallery3d.gadget;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.util.Log;
import com.android.gallery3d.R;
import com.android.gallery3d.data.MediaItem;
import com.android.gallery3d.util.ThreadPool;
public class WidgetUtils {
private static final String TAG = "WidgetUtils";
private static int sStackPhotoWidth = 220;
private static int sStackPhotoHeight = 170;
private WidgetUtils() {
}
public static void initialize(Context context) {
Resources r = context.getResources();
sStackPhotoWidth = r.getDimensionPixelSize(R.dimen.stack_photo_width);
sStackPhotoHeight = r.getDimensionPixelSize(R.dimen.stack_photo_height);
}
public static Bitmap createWidgetBitmap(MediaItem image) {
Bitmap bitmap = image.requestImage(MediaItem.TYPE_THUMBNAIL)
.run(ThreadPool.JOB_CONTEXT_STUB);
if (bitmap == null) {
Log.w(TAG, "fail to get image of " + image.toString());
return null;
}
return createWidgetBitmap(bitmap, image.getRotation());
}
public static Bitmap createWidgetBitmap(Bitmap bitmap, int rotation) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
float scale;
if (((rotation / 90) & 1) == 0) {
scale = Math.max((float) sStackPhotoWidth / w,
(float) sStackPhotoHeight / h);
} else {
scale = Math.max((float) sStackPhotoWidth / h,
(float) sStackPhotoHeight / w);
}
Bitmap target = Bitmap.createBitmap(
sStackPhotoWidth, sStackPhotoHeight, Config.ARGB_8888);
Canvas canvas = new Canvas(target);
canvas.translate(sStackPhotoWidth / 2, sStackPhotoHeight / 2);
canvas.rotate(rotation);
canvas.scale(scale, scale);
Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
canvas.drawBitmap(bitmap, -w / 2, -h / 2, paint);
return target;
}
}
|
