-package be.nikiroo.utils.android;
-
-import android.graphics.Bitmap;
-import android.graphics.Bitmap.Config;
-import android.graphics.BitmapFactory;
-
-import java.io.File;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.stream.Stream;
-
-import be.nikiroo.utils.Image;
-import be.nikiroo.utils.ImageUtils;
-import be.nikiroo.utils.StringUtils;
-
-/**
- * This class offer some utilities based around images and uses the Android
- * framework.
- *
- * @author niki
- */
-public class ImageUtilsAndroid extends ImageUtils {
- @Override
- protected boolean check() {
- // If we can get the class, it means we have access to it
- Config c = Config.ALPHA_8;
- return true;
- }
-
- @Override
- public void saveAsImage(Image img, File target, String format)
- throws IOException {
- FileOutputStream fos = new FileOutputStream(target);
- try {
- Bitmap image = fromImage(img);
-
- boolean ok = false;
- try {
- ok = image.compress(
- Bitmap.CompressFormat.valueOf(format.toUpperCase()),
- 90, fos);
- } catch (Exception e) {
- ok = false;
- }
-
- // Some formats are not reliable
- // Second chance: PNG
- if (!ok && !format.equals("png")) {
- ok = image.compress(Bitmap.CompressFormat.PNG, 90, fos);
- }
-
- if (!ok) {
- throw new IOException(
- "Cannot find a writer for this image and format: "
- + format);
- }
- } catch (IOException e) {
- throw new IOException("Cannot write image to " + target, e);
- } finally {
- fos.close();
- }
- }
-
- /**
- * Convert the given {@link Image} into a {@link Bitmap} object.
- *
- * @param img
- * the {@link Image}
- * @return the {@link Image} object
- * @throws IOException
- * in case of IO error
- */
- static public Bitmap fromImage(Image img) throws IOException {
- InputStream stream = img.newInputStream();
- try {
- Bitmap image = BitmapFactory.decodeStream(stream);
- if (image == null) {
- String extra = "";
- if (img.getSize() <= 2048) {
- try {
- extra = ", content: "
- + new String(img.getData(), "UTF-8");
- } catch (Exception e) {
- extra = ", content unavailable";
- }
- }
- String ssize = StringUtils.formatNumber(img.getSize());
- throw new IOException(
- "Failed to convert input to image, size was: " + ssize
- + extra);
- }
-
- return image;
- } finally {
- stream.close();
- }
- }
-}