Commit | Line | Data |
---|---|---|
e8aa5bf9 NR |
1 | package be.nikiroo.utils.android; |
2 | ||
3 | import android.graphics.Bitmap; | |
4 | import android.graphics.BitmapFactory; | |
5 | import be.nikiroo.utils.Image; | |
6 | import be.nikiroo.utils.ImageUtils; | |
7 | ||
8 | import java.io.File; | |
9 | import java.io.FileOutputStream; | |
10 | import java.io.IOException; | |
11 | ||
12 | /** | |
13 | * This class offer some utilities based around images and uses the Android framework. | |
14 | * | |
15 | * @author niki | |
16 | */ | |
17 | public class ImageUtilsAndroid extends ImageUtils { | |
18 | @Override | |
19 | public void saveAsImage(Image img, File target, String format) | |
20 | throws IOException { | |
21 | FileOutputStream fos = new FileOutputStream(target); | |
22 | try { | |
23 | Bitmap image = fromImage(img); | |
24 | ||
25 | boolean ok = false; | |
26 | try { | |
27 | ok = image.compress( | |
28 | Bitmap.CompressFormat.valueOf(format.toUpperCase()), | |
29 | 90, fos); | |
30 | } catch (Exception e) { | |
31 | ok = false; | |
32 | } | |
33 | ||
34 | // Some formats are not reliable | |
35 | // Second change: PNG | |
36 | if (!ok && !format.equals("png")) { | |
37 | ok = image.compress(Bitmap.CompressFormat.PNG, 90, fos); | |
38 | } | |
39 | ||
40 | if (!ok) { | |
41 | throw new IOException( | |
42 | "Cannot find a writer for this image and format: " | |
43 | + format); | |
44 | } | |
45 | } catch (IOException e) { | |
46 | throw new IOException("Cannot write image to " + target, e); | |
47 | } finally { | |
48 | fos.close(); | |
49 | } | |
50 | } | |
51 | ||
52 | /** | |
53 | * Convert the given {@link Image} into a {@link Bitmap} object. | |
54 | * | |
55 | * @param img | |
56 | * the {@link Image} | |
57 | * @return the {@link Image} object | |
58 | * @throws IOException | |
59 | * in case of IO error | |
60 | */ | |
61 | static public Bitmap fromImage(Image img) throws IOException { | |
62 | Bitmap image = BitmapFactory.decodeByteArray(img.getData(), 0, | |
63 | img.getData().length); | |
64 | if (image == null) { | |
65 | throw new IOException("Failed to convert input to image"); | |
66 | } | |
67 | ||
68 | return image; | |
69 | } | |
70 | } |