X-Git-Url: http://git.nikiroo.be/?p=fanfix.git;a=blobdiff_plain;f=src%2Fbe%2Fnikiroo%2Futils%2Fandroid%2FImageUtilsAndroid.java;fp=src%2Fbe%2Fnikiroo%2Futils%2Fandroid%2FImageUtilsAndroid.java;h=c2e269cc58291cfbcb32d2e105c7d63938c6e136;hp=0000000000000000000000000000000000000000;hb=d46b7b96f94e88a776bcd2dfd756549ffb300cc9;hpb=c9994f27667bc421bcd448d39e55774fddf5c431

diff --git a/src/be/nikiroo/utils/android/ImageUtilsAndroid.java b/src/be/nikiroo/utils/android/ImageUtilsAndroid.java
new file mode 100644
index 0000000..c2e269c
--- /dev/null
+++ b/src/be/nikiroo/utils/android/ImageUtilsAndroid.java
@@ -0,0 +1,99 @@
+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();
+		}
+	}
+}