aboutsummaryrefslogtreecommitdiffstats
path: root/src/main/java/de/thedevstack/conversationsplus/utils
diff options
context:
space:
mode:
Diffstat (limited to 'src/main/java/de/thedevstack/conversationsplus/utils')
-rw-r--r--src/main/java/de/thedevstack/conversationsplus/utils/ImageUtil.java60
-rw-r--r--src/main/java/de/thedevstack/conversationsplus/utils/MessageUtil.java72
2 files changed, 132 insertions, 0 deletions
diff --git a/src/main/java/de/thedevstack/conversationsplus/utils/ImageUtil.java b/src/main/java/de/thedevstack/conversationsplus/utils/ImageUtil.java
index 7e8cacd0..9250c432 100644
--- a/src/main/java/de/thedevstack/conversationsplus/utils/ImageUtil.java
+++ b/src/main/java/de/thedevstack/conversationsplus/utils/ImageUtil.java
@@ -11,17 +11,24 @@ import android.util.LruCache;
import java.io.File;
import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import de.thedevstack.android.logcat.Logging;
+import de.thedevstack.conversationsplus.Config;
+import de.thedevstack.conversationsplus.R;
import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.exceptions.FileCopyException;
+import de.thedevstack.conversationsplus.exceptions.ImageResizeException;
import de.thedevstack.conversationsplus.persistance.FileBackend;
/**
* This util provides
*/
public final class ImageUtil {
+
+ private static int IMAGE_SIZE = 1920;
private static LruCache<String, Bitmap> BITMAP_CACHE;
/**
@@ -104,6 +111,59 @@ public final class ImageUtil {
}
/**
+ * Resizes and rotates an image given by uri and returns the bitmap.
+ * @param image the uri of the image to be resized and rotated
+ * @return resized and rotated bitmap
+ * @throws ImageResizeException
+ */
+ public static Bitmap resizeAndRotateImage(Uri image) throws ImageResizeException {
+ return ImageUtil.resizeAndRotateImage(image, 0);
+ }
+
+ /**
+ * Resizes and rotates an image given by uri and returns the bitmap.
+ * @param image the uri of the image to be resized and rotated
+ * @return resized and rotated bitmap
+ * @throws ImageResizeException
+ */
+ private static Bitmap resizeAndRotateImage(Uri image, int sampleSize) throws ImageResizeException {
+ InputStream imageInputStream = null;
+ try {
+ imageInputStream = StreamUtil.openInputStreamFromContentResolver(image);
+ Bitmap originalBitmap;
+ BitmapFactory.Options options = new BitmapFactory.Options();
+ int inSampleSize = (int) Math.pow(2, sampleSize);
+ Logging.d(Config.LOGTAG, "reading bitmap with sample size " + inSampleSize);
+ options.inSampleSize = inSampleSize;
+ originalBitmap = BitmapFactory.decodeStream(imageInputStream, null, options);
+ imageInputStream.close();
+ if (originalBitmap == null) {
+ throw new ImageResizeException(R.string.error_not_an_image_file);
+ }
+ Bitmap scaledBitmap = ImageUtil.resize(originalBitmap, IMAGE_SIZE);
+ int rotation = ImageUtil.getRotation(image);
+ if (rotation > 0) {
+ scaledBitmap = ImageUtil.rotate(scaledBitmap, rotation);
+ }
+
+ return scaledBitmap;
+ } catch (FileNotFoundException e) {
+ throw new ImageResizeException(R.string.error_file_not_found);
+ } catch (IOException e) {
+ throw new ImageResizeException(R.string.error_io_exception);
+ } catch (OutOfMemoryError e) {
+ ++sampleSize;
+ if (sampleSize <= 3) {
+ return resizeAndRotateImage(image, sampleSize);
+ } else {
+ throw new ImageResizeException(R.string.error_out_of_memory);
+ }
+ } finally {
+ StreamUtil.close(imageInputStream);
+ }
+ }
+
+ /**
* Returns the rotation from the exif information of an image identified with the given uri.
* The orientation is retrieved by parsing the stream of the image.
* FileNotFoundException is silently ignored.
diff --git a/src/main/java/de/thedevstack/conversationsplus/utils/MessageUtil.java b/src/main/java/de/thedevstack/conversationsplus/utils/MessageUtil.java
new file mode 100644
index 00000000..c04ebdb8
--- /dev/null
+++ b/src/main/java/de/thedevstack/conversationsplus/utils/MessageUtil.java
@@ -0,0 +1,72 @@
+package de.thedevstack.conversationsplus.utils;
+
+import android.graphics.BitmapFactory;
+
+import java.net.URL;
+
+import de.thedevstack.conversationsplus.entities.DownloadableFile;
+import de.thedevstack.conversationsplus.entities.Message;
+import de.thedevstack.conversationsplus.persistance.FileBackend;
+
+/**
+ * Created by tzur on 15.12.2015.
+ */
+public final class MessageUtil {
+ public static void updateMessageWithImageDetails(Message message, String filePath, long size, int imageWidth, int imageHeight) {
+ message.setRelativeFilePath(filePath);
+ MessageUtil.updateMessageBodyWithImageParams(message, size, imageWidth, imageHeight);
+ }
+
+ public static void updateFileParams(Message message) {
+ updateFileParams(message, null);
+ }
+
+ public static void updateFileParams(Message message, URL url) {
+ DownloadableFile file = FileBackend.getFile(message);
+ int imageWidth = -1;
+ int imageHeight = -1;
+ if (message.getType() == Message.TYPE_IMAGE || file.getMimeType().startsWith("image/")) {
+ BitmapFactory.Options options = new BitmapFactory.Options();
+ options.inJustDecodeBounds = true;
+ BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+ imageHeight = options.outHeight;
+ imageWidth = options.outWidth;
+ }
+
+ MessageUtil.updateMessageBodyWithFileParams(message, url, file.getSize(), imageWidth, imageHeight);
+ }
+
+ private static void updateMessageBodyWithFileParams(Message message, URL url, long fileSize, int imageWidth, int imageHeight) {
+ message.setBody(MessageUtil.getMessageBodyWithImageParams(url, fileSize, imageWidth, imageHeight));
+ }
+
+ private static void updateMessageBodyWithImageParams(Message message, long size, int imageWidth, int imageHeight) {
+ MessageUtil.updateMessageBodyWithImageParams(message, null, size, imageWidth, imageHeight);
+ }
+
+ private static void updateMessageBodyWithImageParams(Message message, URL url, long size, int imageWidth, int imageHeight) {
+ message.setBody(MessageUtil.getMessageBodyWithImageParams(url, size, imageWidth, imageHeight));
+ }
+
+ private static String getMessageBodyWithImageParams(URL url, long size, int imageWidth, int imageHeight) {
+ StringBuilder sb = new StringBuilder();
+ if (null != url) {
+ sb.append(url.toString());
+ sb.append('|');
+ }
+ sb.append(size);
+ if (-1 < imageWidth) {
+ sb.append('|');
+ sb.append(imageWidth);
+ }
+ if (-1 < imageHeight) {
+ sb.append('|');
+ sb.append(imageHeight);
+ }
+ return sb.toString();
+ }
+
+ private MessageUtil() {
+ // Static helper class
+ }
+}