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/*
* Copyright (C) 2010 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.camera;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.location.Location;
import android.net.Uri;
import android.os.Environment;
import android.os.StatFs;
import android.provider.MediaStore.Images;
import android.provider.MediaStore.Images.ImageColumns;
import android.provider.MediaStore.Video;
import android.provider.MediaStore.Video.VideoColumns;
import android.util.Log;
import java.io.File;
import java.io.FileOutputStream;
class Storage {
private static final String TAG = "CameraStorage";
private static final String DCIM =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString();
public static final String DIRECTORY = DCIM + "/Camera";
public static final String THUMBNAILS = DCIM + "/.thumbnails";
// Match the code in MediaProvider.computeBucketValues().
public static final String BUCKET_ID =
String.valueOf(DIRECTORY.toLowerCase().hashCode());
public static final long UNAVAILABLE = -1L;
public static final long PREPARING = -2L;
public static final long UNKNOWN_SIZE = -3L;
public static class Thumbnail {
private Uri mBaseUri;
private long mId;
private Uri mUri;
private Bitmap mBitmap;
private int mOrientation;
private Thumbnail(Uri baseUri, long id, int orientation) {
mBaseUri = baseUri;
mId = id;
mOrientation = orientation;
}
private Thumbnail(Uri uri, Bitmap bitmap, int orientation) {
mUri = uri;
mBitmap = bitmap;
mOrientation = orientation;
}
public Uri getOriginalUri() {
if (mUri == null && mBaseUri != null) {
mUri = ContentUris.withAppendedId(mBaseUri, mId);
}
return mUri;
}
public Bitmap getBitmap(ContentResolver resolver) {
if (mBitmap == null) {
if (Images.Media.EXTERNAL_CONTENT_URI.equals(mBaseUri)) {
mBitmap = Images.Thumbnails.getThumbnail(resolver, mId,
Images.Thumbnails.MICRO_KIND, null);
} else if (Video.Media.EXTERNAL_CONTENT_URI.equals(mBaseUri)) {
mBitmap = Video.Thumbnails.getThumbnail(resolver, mId,
Video.Thumbnails.MICRO_KIND, null);
}
}
if (mBitmap != null && mOrientation != 0) {
// We only rotate the thumbnail once even if we get OOM.
Matrix m = new Matrix();
m.setRotate(mOrientation, mBitmap.getWidth() * 0.5f,
mBitmap.getHeight() * 0.5f);
mOrientation = 0;
try {
Bitmap rotated = Bitmap.createBitmap(mBitmap, 0, 0,
mBitmap.getWidth(), mBitmap.getHeight(), m, true);
mBitmap.recycle();
mBitmap = rotated;
} catch (Throwable t) {
Log.w(TAG, "Failed to rotate thumbnail", t);
}
}
return mBitmap;
}
}
public static Thumbnail getLastImageThumbnail(ContentResolver resolver) {
Uri baseUri = Images.Media.EXTERNAL_CONTENT_URI;
Uri query = baseUri.buildUpon().appendQueryParameter("limit", "1").build();
String[] projection = new String[] {ImageColumns._ID, ImageColumns.ORIENTATION};
String selection = ImageColumns.MIME_TYPE + "='image/jpeg' AND " +
ImageColumns.BUCKET_ID + '=' + BUCKET_ID;
String order = ImageColumns.DATE_TAKEN + " DESC," + ImageColumns._ID + " DESC";
Cursor cursor = null;
try {
cursor = resolver.query(query, projection, selection, null, order);
if (cursor != null && cursor.moveToFirst()) {
return new Thumbnail(baseUri, cursor.getLong(0), cursor.getInt(1));
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return null;
}
public static Thumbnail getLastVideoThumbnail(ContentResolver resolver) {
Uri baseUri = Video.Media.EXTERNAL_CONTENT_URI;
Uri query = baseUri.buildUpon().appendQueryParameter("limit", "1").build();
String[] projection = new String[] {VideoColumns._ID};
String selection = VideoColumns.BUCKET_ID + '=' + BUCKET_ID;
String order = VideoColumns.DATE_TAKEN + " DESC," + VideoColumns._ID + " DESC";
Cursor cursor = null;
try {
cursor = resolver.query(query, projection, selection, null, order);
if (cursor != null && cursor.moveToFirst()) {
return new Thumbnail(baseUri, cursor.getLong(0), 0);
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return null;
}
public static Thumbnail addImage(ContentResolver resolver, String title,
long date, Location location, byte[] jpeg) {
// Save the image.
String path = DIRECTORY + '/' + title + ".jpg";
FileOutputStream out = null;
try {
out = new FileOutputStream(path);
out.write(jpeg);
} catch (Exception e) {
Log.e(TAG, "Failed to write image", e);
return null;
} finally {
try {
out.close();
} catch (Exception e) {
}
}
// Get the orientation.
int orientation = Exif.getOrientation(jpeg);
// Insert into MediaStore.
ContentValues values = new ContentValues(9);
values.put(ImageColumns.TITLE, title);
values.put(ImageColumns.DISPLAY_NAME, title + ".jpg");
values.put(ImageColumns.DATE_TAKEN, date);
values.put(ImageColumns.MIME_TYPE, "image/jpeg");
values.put(ImageColumns.ORIENTATION, orientation);
values.put(ImageColumns.DATA, path);
values.put(ImageColumns.SIZE, jpeg.length);
if (location != null) {
values.put(ImageColumns.LATITUDE, location.getLatitude());
values.put(ImageColumns.LONGITUDE, location.getLongitude());
}
Uri uri = resolver.insert(Images.Media.EXTERNAL_CONTENT_URI, values);
if (uri == null) {
Log.e(TAG, "Failed to write MediaStore");
return null;
}
// Create the thumbnail.
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 16;
Bitmap bitmap = BitmapFactory.decodeByteArray(jpeg, 0, jpeg.length, options);
if (bitmap == null) {
Log.e(TAG, "Failed to create thumbnail");
return null;
}
return new Thumbnail(uri, bitmap, orientation);
}
public static long getAvailableSpace() {
String state = Environment.getExternalStorageState();
if (Environment.MEDIA_CHECKING.equals(state)) {
return PREPARING;
}
if (!Environment.MEDIA_MOUNTED.equals(state)) {
return UNAVAILABLE;
}
File dir = new File(DIRECTORY);
dir.mkdirs();
if (!dir.isDirectory() || !dir.canWrite()) {
return UNAVAILABLE;
}
try {
StatFs stat = new StatFs(DIRECTORY);
return stat.getAvailableBlocks() * (long) stat.getBlockSize();
} catch (Exception e) {
Log.i(TAG, "Fail to access external storage", e);
}
return UNKNOWN_SIZE;
}
/**
* OSX requires plugged-in USB storage to have path /DCIM/NNNAAAAA to be
* imported. This is a temporary fix for bug#1655552.
*/
public static void ensureOSXCompatible() {
File nnnAAAAA = new File(DCIM, "100ANDRO");
if (!(nnnAAAAA.exists() || nnnAAAAA.mkdirs())) {
Log.e(TAG, "Failed to create " + nnnAAAAA.getPath());
}
}
}
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