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Diffstat (limited to 'src/com/android/camera/Storage.java')
| -rw-r--r-- | src/com/android/camera/Storage.java | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/src/com/android/camera/Storage.java b/src/com/android/camera/Storage.java new file mode 100644 index 000000000..ba995edef --- /dev/null +++ b/src/com/android/camera/Storage.java @@ -0,0 +1,181 @@ +/* + * 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.annotation.TargetApi; +import android.content.ContentResolver; +import android.content.ContentValues; +import android.location.Location; +import android.net.Uri; +import android.os.Build; +import android.os.Environment; +import android.os.StatFs; +import android.provider.MediaStore.Images; +import android.provider.MediaStore.Images.ImageColumns; +import android.provider.MediaStore.MediaColumns; +import android.util.Log; + +import com.android.gallery3d.common.ApiHelper; +import com.android.gallery3d.exif.ExifInterface; + +import java.io.File; +import java.io.FileOutputStream; + +public class Storage { + private static final String TAG = "CameraStorage"; + + public static final String DCIM = + Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).toString(); + + public static final String DIRECTORY = DCIM + "/Camera"; + + // 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 final long LOW_STORAGE_THRESHOLD = 50000000; + + @TargetApi(Build.VERSION_CODES.JELLY_BEAN) + private static void setImageSize(ContentValues values, int width, int height) { + // The two fields are available since ICS but got published in JB + if (ApiHelper.HAS_MEDIA_COLUMNS_WIDTH_AND_HEIGHT) { + values.put(MediaColumns.WIDTH, width); + values.put(MediaColumns.HEIGHT, height); + } + } + + public static void writeFile(String path, byte[] data) { + FileOutputStream out = null; + try { + out = new FileOutputStream(path); + out.write(data); + } catch (Exception e) { + Log.e(TAG, "Failed to write data", e); + } finally { + try { + out.close(); + } catch (Exception e) { + } + } + } + + // Save the image and add it to media store. + public static Uri addImage(ContentResolver resolver, String title, + long date, Location location, int orientation, ExifInterface exif, + byte[] jpeg, int width, int height) { + // Save the image. + String path = generateFilepath(title); + if (exif != null) { + try { + exif.writeExif(jpeg, path); + } catch (Exception e) { + Log.e(TAG, "Failed to write data", e); + } + } else { + writeFile(path, jpeg); + } + return addImage(resolver, title, date, location, orientation, + jpeg.length, path, width, height); + } + + // Add the image to media store. + public static Uri addImage(ContentResolver resolver, String title, + long date, Location location, int orientation, int jpegLength, + String path, int width, int height) { + // 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"); + // Clockwise rotation in degrees. 0, 90, 180, or 270. + values.put(ImageColumns.ORIENTATION, orientation); + values.put(ImageColumns.DATA, path); + values.put(ImageColumns.SIZE, jpegLength); + + setImageSize(values, width, height); + + if (location != null) { + values.put(ImageColumns.LATITUDE, location.getLatitude()); + values.put(ImageColumns.LONGITUDE, location.getLongitude()); + } + + Uri uri = null; + try { + uri = resolver.insert(Images.Media.EXTERNAL_CONTENT_URI, values); + } catch (Throwable th) { + // This can happen when the external volume is already mounted, but + // MediaScanner has not notify MediaProvider to add that volume. + // The picture is still safe and MediaScanner will find it and + // insert it into MediaProvider. The only problem is that the user + // cannot click the thumbnail to review the picture. + Log.e(TAG, "Failed to write MediaStore" + th); + } + return uri; + } + + public static void deleteImage(ContentResolver resolver, Uri uri) { + try { + resolver.delete(uri, null, null); + } catch (Throwable th) { + Log.e(TAG, "Failed to delete image: " + uri); + } + } + + public static String generateFilepath(String title) { + return DIRECTORY + '/' + title + ".jpg"; + } + + public static long getAvailableSpace() { + String state = Environment.getExternalStorageState(); + Log.d(TAG, "External storage state=" + state); + 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()); + } + } +} |