LocalImage.java revision 09169dd269f1a82efb83ea1cebf75abe4daabd26
1/* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.gallery3d.data; 18 19import android.annotation.TargetApi; 20import android.content.ContentResolver; 21import android.content.ContentValues; 22import android.database.Cursor; 23import android.graphics.Bitmap; 24import android.graphics.BitmapFactory; 25import android.graphics.BitmapRegionDecoder; 26import android.net.Uri; 27import android.os.Build; 28import android.provider.MediaStore.Images; 29import android.provider.MediaStore.Images.ImageColumns; 30import android.provider.MediaStore.MediaColumns; 31import android.util.Log; 32 33import com.android.gallery3d.app.GalleryApp; 34import com.android.gallery3d.app.PanoramaMetadataSupport; 35import com.android.gallery3d.app.StitchingProgressManager; 36import com.android.gallery3d.common.ApiHelper; 37import com.android.gallery3d.common.BitmapUtils; 38import com.android.gallery3d.exif.ExifInterface; 39import com.android.gallery3d.exif.ExifTag; 40import com.android.gallery3d.filtershow.tools.SaveImage; 41import com.android.gallery3d.util.GalleryUtils; 42import com.android.gallery3d.util.ThreadPool.Job; 43import com.android.gallery3d.util.ThreadPool.JobContext; 44import com.android.gallery3d.util.UpdateHelper; 45 46import java.io.File; 47import java.io.FileNotFoundException; 48import java.io.IOException; 49 50// LocalImage represents an image in the local storage. 51public class LocalImage extends LocalMediaItem { 52 private static final String TAG = "LocalImage"; 53 54 static final Path ITEM_PATH = Path.fromString("/local/image/item"); 55 56 // Must preserve order between these indices and the order of the terms in 57 // the following PROJECTION array. 58 private static final int INDEX_ID = 0; 59 private static final int INDEX_CAPTION = 1; 60 private static final int INDEX_MIME_TYPE = 2; 61 private static final int INDEX_LATITUDE = 3; 62 private static final int INDEX_LONGITUDE = 4; 63 private static final int INDEX_DATE_TAKEN = 5; 64 private static final int INDEX_DATE_ADDED = 6; 65 private static final int INDEX_DATE_MODIFIED = 7; 66 private static final int INDEX_DATA = 8; 67 private static final int INDEX_ORIENTATION = 9; 68 private static final int INDEX_BUCKET_ID = 10; 69 private static final int INDEX_SIZE = 11; 70 private static final int INDEX_WIDTH = 12; 71 private static final int INDEX_HEIGHT = 13; 72 73 static final String[] PROJECTION = { 74 ImageColumns._ID, // 0 75 ImageColumns.TITLE, // 1 76 ImageColumns.MIME_TYPE, // 2 77 ImageColumns.LATITUDE, // 3 78 ImageColumns.LONGITUDE, // 4 79 ImageColumns.DATE_TAKEN, // 5 80 ImageColumns.DATE_ADDED, // 6 81 ImageColumns.DATE_MODIFIED, // 7 82 ImageColumns.DATA, // 8 83 ImageColumns.ORIENTATION, // 9 84 ImageColumns.BUCKET_ID, // 10 85 ImageColumns.SIZE, // 11 86 "0", // 12 87 "0" // 13 88 }; 89 90 static { 91 updateWidthAndHeightProjection(); 92 } 93 94 @TargetApi(Build.VERSION_CODES.JELLY_BEAN) 95 private static void updateWidthAndHeightProjection() { 96 if (ApiHelper.HAS_MEDIA_COLUMNS_WIDTH_AND_HEIGHT) { 97 PROJECTION[INDEX_WIDTH] = MediaColumns.WIDTH; 98 PROJECTION[INDEX_HEIGHT] = MediaColumns.HEIGHT; 99 } 100 } 101 102 private final GalleryApp mApplication; 103 104 public int rotation; 105 106 private PanoramaMetadataSupport mPanoramaMetadata = new PanoramaMetadataSupport(this); 107 108 public LocalImage(Path path, GalleryApp application, Cursor cursor) { 109 super(path, nextVersionNumber()); 110 mApplication = application; 111 loadFromCursor(cursor); 112 } 113 114 public LocalImage(Path path, GalleryApp application, int id) { 115 super(path, nextVersionNumber()); 116 mApplication = application; 117 ContentResolver resolver = mApplication.getContentResolver(); 118 Uri uri = Images.Media.EXTERNAL_CONTENT_URI; 119 Cursor cursor = LocalAlbum.getItemCursor(resolver, uri, PROJECTION, id); 120 if (cursor == null) { 121 throw new RuntimeException("cannot get cursor for: " + path); 122 } 123 try { 124 if (cursor.moveToNext()) { 125 loadFromCursor(cursor); 126 } else { 127 throw new RuntimeException("cannot find data for: " + path); 128 } 129 } finally { 130 cursor.close(); 131 } 132 } 133 134 private void loadFromCursor(Cursor cursor) { 135 id = cursor.getInt(INDEX_ID); 136 caption = cursor.getString(INDEX_CAPTION); 137 mimeType = cursor.getString(INDEX_MIME_TYPE); 138 latitude = cursor.getDouble(INDEX_LATITUDE); 139 longitude = cursor.getDouble(INDEX_LONGITUDE); 140 dateTakenInMs = cursor.getLong(INDEX_DATE_TAKEN); 141 dateAddedInSec = cursor.getLong(INDEX_DATE_ADDED); 142 dateModifiedInSec = cursor.getLong(INDEX_DATE_MODIFIED); 143 filePath = cursor.getString(INDEX_DATA); 144 rotation = cursor.getInt(INDEX_ORIENTATION); 145 bucketId = cursor.getInt(INDEX_BUCKET_ID); 146 fileSize = cursor.getLong(INDEX_SIZE); 147 width = cursor.getInt(INDEX_WIDTH); 148 height = cursor.getInt(INDEX_HEIGHT); 149 } 150 151 @Override 152 protected boolean updateFromCursor(Cursor cursor) { 153 UpdateHelper uh = new UpdateHelper(); 154 id = uh.update(id, cursor.getInt(INDEX_ID)); 155 caption = uh.update(caption, cursor.getString(INDEX_CAPTION)); 156 mimeType = uh.update(mimeType, cursor.getString(INDEX_MIME_TYPE)); 157 latitude = uh.update(latitude, cursor.getDouble(INDEX_LATITUDE)); 158 longitude = uh.update(longitude, cursor.getDouble(INDEX_LONGITUDE)); 159 dateTakenInMs = uh.update( 160 dateTakenInMs, cursor.getLong(INDEX_DATE_TAKEN)); 161 dateAddedInSec = uh.update( 162 dateAddedInSec, cursor.getLong(INDEX_DATE_ADDED)); 163 dateModifiedInSec = uh.update( 164 dateModifiedInSec, cursor.getLong(INDEX_DATE_MODIFIED)); 165 filePath = uh.update(filePath, cursor.getString(INDEX_DATA)); 166 rotation = uh.update(rotation, cursor.getInt(INDEX_ORIENTATION)); 167 bucketId = uh.update(bucketId, cursor.getInt(INDEX_BUCKET_ID)); 168 fileSize = uh.update(fileSize, cursor.getLong(INDEX_SIZE)); 169 width = uh.update(width, cursor.getInt(INDEX_WIDTH)); 170 height = uh.update(height, cursor.getInt(INDEX_HEIGHT)); 171 return uh.isUpdated(); 172 } 173 174 @Override 175 public Job<Bitmap> requestImage(int type) { 176 return new LocalImageRequest(mApplication, mPath, dateModifiedInSec, 177 type, filePath); 178 } 179 180 public static class LocalImageRequest extends ImageCacheRequest { 181 private String mLocalFilePath; 182 183 LocalImageRequest(GalleryApp application, Path path, long timeModified, 184 int type, String localFilePath) { 185 super(application, path, timeModified, type, 186 MediaItem.getTargetSize(type)); 187 mLocalFilePath = localFilePath; 188 } 189 190 @Override 191 public Bitmap onDecodeOriginal(JobContext jc, final int type) { 192 BitmapFactory.Options options = new BitmapFactory.Options(); 193 options.inPreferredConfig = Bitmap.Config.ARGB_8888; 194 int targetSize = MediaItem.getTargetSize(type); 195 196 // try to decode from JPEG EXIF 197 if (type == MediaItem.TYPE_MICROTHUMBNAIL) { 198 ExifInterface exif = new ExifInterface(); 199 byte[] thumbData = null; 200 try { 201 exif.readExif(mLocalFilePath); 202 thumbData = exif.getThumbnail(); 203 } catch (FileNotFoundException e) { 204 Log.w(TAG, "failed to find file to read thumbnail: " + mLocalFilePath); 205 } catch (IOException e) { 206 Log.w(TAG, "failed to get thumbnail from: " + mLocalFilePath); 207 } 208 if (thumbData != null) { 209 Bitmap bitmap = DecodeUtils.decodeIfBigEnough( 210 jc, thumbData, options, targetSize); 211 if (bitmap != null) return bitmap; 212 } 213 } 214 215 return DecodeUtils.decodeThumbnail(jc, mLocalFilePath, options, targetSize, type); 216 } 217 } 218 219 @Override 220 public Job<BitmapRegionDecoder> requestLargeImage() { 221 return new LocalLargeImageRequest(filePath); 222 } 223 224 public static class LocalLargeImageRequest 225 implements Job<BitmapRegionDecoder> { 226 String mLocalFilePath; 227 228 public LocalLargeImageRequest(String localFilePath) { 229 mLocalFilePath = localFilePath; 230 } 231 232 @Override 233 public BitmapRegionDecoder run(JobContext jc) { 234 return DecodeUtils.createBitmapRegionDecoder(jc, mLocalFilePath, false); 235 } 236 } 237 238 @Override 239 public int getSupportedOperations() { 240 StitchingProgressManager progressManager = mApplication.getStitchingProgressManager(); 241 if (progressManager != null && progressManager.getProgress(getContentUri()) != null) { 242 return 0; // doesn't support anything while stitching! 243 } 244 int operation = SUPPORT_DELETE | SUPPORT_SHARE | SUPPORT_CROP 245 | SUPPORT_SETAS | SUPPORT_EDIT | SUPPORT_INFO; 246 if (BitmapUtils.isSupportedByRegionDecoder(mimeType)) { 247 operation |= SUPPORT_FULL_IMAGE; 248 } 249 250 if (BitmapUtils.isRotationSupported(mimeType)) { 251 operation |= SUPPORT_ROTATE; 252 } 253 254 if (GalleryUtils.isValidLocation(latitude, longitude)) { 255 operation |= SUPPORT_SHOW_ON_MAP; 256 } 257 return operation; 258 } 259 260 @Override 261 public void getPanoramaSupport(PanoramaSupportCallback callback) { 262 mPanoramaMetadata.getPanoramaSupport(mApplication, callback); 263 } 264 265 @Override 266 public void clearCachedPanoramaSupport() { 267 mPanoramaMetadata.clearCachedValues(); 268 } 269 270 @Override 271 public void delete() { 272 GalleryUtils.assertNotInRenderThread(); 273 Uri baseUri = Images.Media.EXTERNAL_CONTENT_URI; 274 ContentResolver contentResolver = mApplication.getContentResolver(); 275 SaveImage.deleteAuxFiles(contentResolver, getContentUri()); 276 contentResolver.delete(baseUri, "_id=?", 277 new String[]{String.valueOf(id)}); 278 } 279 280 @Override 281 public void rotate(int degrees) { 282 GalleryUtils.assertNotInRenderThread(); 283 Uri baseUri = Images.Media.EXTERNAL_CONTENT_URI; 284 ContentValues values = new ContentValues(); 285 int rotation = (this.rotation + degrees) % 360; 286 if (rotation < 0) rotation += 360; 287 288 if (mimeType.equalsIgnoreCase("image/jpeg")) { 289 ExifInterface exifInterface = new ExifInterface(); 290 ExifTag tag = exifInterface.buildTag(ExifInterface.TAG_ORIENTATION, 291 ExifInterface.getOrientationValueForRotation(rotation)); 292 if(tag != null) { 293 exifInterface.setTag(tag); 294 try { 295 exifInterface.forceRewriteExif(filePath); 296 fileSize = new File(filePath).length(); 297 values.put(Images.Media.SIZE, fileSize); 298 } catch (FileNotFoundException e) { 299 Log.w(TAG, "cannot find file to set exif: " + filePath); 300 } catch (IOException e) { 301 Log.w(TAG, "cannot set exif data: " + filePath); 302 } 303 } else { 304 Log.w(TAG, "Could not build tag: " + ExifInterface.TAG_ORIENTATION); 305 } 306 } 307 308 values.put(Images.Media.ORIENTATION, rotation); 309 mApplication.getContentResolver().update(baseUri, values, "_id=?", 310 new String[]{String.valueOf(id)}); 311 } 312 313 @Override 314 public Uri getContentUri() { 315 Uri baseUri = Images.Media.EXTERNAL_CONTENT_URI; 316 return baseUri.buildUpon().appendPath(String.valueOf(id)).build(); 317 } 318 319 @Override 320 public int getMediaType() { 321 return MEDIA_TYPE_IMAGE; 322 } 323 324 @Override 325 public MediaDetails getDetails() { 326 MediaDetails details = super.getDetails(); 327 details.addDetail(MediaDetails.INDEX_ORIENTATION, Integer.valueOf(rotation)); 328 if (MIME_TYPE_JPEG.equals(mimeType)) { 329 // ExifInterface returns incorrect values for photos in other format. 330 // For example, the width and height of an webp images is always '0'. 331 MediaDetails.extractExifInfo(details, filePath); 332 } 333 return details; 334 } 335 336 @Override 337 public int getRotation() { 338 return rotation; 339 } 340 341 @Override 342 public int getWidth() { 343 return width; 344 } 345 346 @Override 347 public int getHeight() { 348 return height; 349 } 350 351 @Override 352 public String getFilePath() { 353 return filePath; 354 } 355} 356