summaryrefslogtreecommitdiffstats
path: root/src/com/android/camera/data/LocalData.java
blob: 216c25a07313b7aac3cdad904b471a129dd92669 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
/*
 * Copyright (C) 2013 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.data;

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Matrix;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.media.MediaMetadataRetriever;
import android.net.Uri;
import android.os.AsyncTask;
import android.provider.MediaStore;
import android.provider.MediaStore.Images.ImageColumns;
import android.provider.MediaStore.Video;
import android.provider.MediaStore.Video.VideoColumns;
import android.util.Log;
import android.view.Gravity;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.FrameLayout;
import android.widget.ImageView;

import com.android.camera.Util;
import com.android.camera.ui.FilmStripView;
import com.android.gallery3d.R;

import java.io.File;
import java.util.Comparator;
import java.util.Date;

/* An abstract interface that represents the local media data. Also implements
 * Comparable interface so we can sort in DataAdapter.
 */
public interface LocalData extends FilmStripView.ImageData {
    static final String TAG = "CAM_LocalData";

    public static final int ACTION_NONE = 0;
    public static final int ACTION_PLAY = 1;
    public static final int ACTION_DELETE = (1 << 1);

    View getView(Context c, int width, int height, Drawable placeHolder);
    long getDateTaken();
    long getDateModified();
    String getTitle();
    boolean isDataActionSupported(int action);
    boolean delete(Context c);

    static class NewestFirstComparator implements Comparator<LocalData> {

        // Compare taken/modified date of LocalData in descent order to make
        // newer data in the front.
        // The negavive numbers here are always considered "bigger" than
        // postive ones. Thus, if any one of the numbers is negative, the logic
        // is reversed.
        private static int compareDate(long v1, long v2) {
            if (v1 >= 0 && v2 >= 0) {
                return ((v1 < v2) ? 1 : ((v1 > v2) ? -1 : 0));
            }
            return ((v2 < v1) ? 1 : ((v2 > v1) ? -1 : 0));
        }

        @Override
        public int compare(LocalData d1, LocalData d2) {
            int cmp = compareDate(d1.getDateTaken(), d2.getDateTaken());
            if (cmp == 0) {
                cmp = compareDate(d1.getDateModified(), d2.getDateModified());
            }
            if (cmp == 0) {
                cmp = d1.getTitle().compareTo(d2.getTitle());
            }
            return cmp;
        }
    }

    // Implementations below.

    /*
     * A base class for all the local media files. The bitmap is loaded in background
     * thread. Subclasses should implement their own background loading thread by
     * subclassing BitmapLoadTask and overriding doInBackground() to return a bitmap.
     */
    abstract static class LocalMediaData implements LocalData {
        protected long id;
        protected String title;
        protected String mimeType;
        protected long dateTaken;
        protected long dateModified;
        protected String path;
        // width and height should be adjusted according to orientation.
        protected int width;
        protected int height;

        // true if this data has a corresponding visible view.
        protected Boolean mUsing = false;

        @Override
        public long getDateTaken() {
            return dateTaken;
        }

        @Override
        public long getDateModified() {
            return dateModified;
        }

        @Override
        public String getTitle() {
            return new String(title);
        }

        @Override
        public int getWidth() {
            return width;
        }

        @Override
        public int getHeight() {
            return height;
        }

        @Override
        public boolean isUIActionSupported(int action) {
            return false;
        }

        @Override
        public boolean isDataActionSupported(int action) {
            return false;
        }

        @Override
        public boolean delete(Context ctx) {
            File f = new File(path);
            return f.delete();
        }

        protected ImageView fillImageView(Context ctx, ImageView v,
                int decodeWidth, int decodeHeight, Drawable placeHolder) {
            v.setScaleType(ImageView.ScaleType.FIT_XY);
            v.setImageDrawable(placeHolder);

            BitmapLoadTask task = getBitmapLoadTask(v, decodeWidth, decodeHeight);
            task.execute();
            return v;
        }

        @Override
        public View getView(Context ctx,
                int decodeWidth, int decodeHeight, Drawable placeHolder) {
            return fillImageView(ctx, new ImageView(ctx),
                    decodeWidth, decodeHeight, placeHolder);
        }

        @Override
        public void prepare() {
            synchronized (mUsing) {
                mUsing = true;
            }
        }

        @Override
        public void recycle() {
            synchronized (mUsing) {
                mUsing = false;
            }
        }

        protected boolean isUsing() {
            synchronized (mUsing) {
                return mUsing;
            }
        }

        @Override
        public abstract int getType();

        protected abstract BitmapLoadTask getBitmapLoadTask(
                ImageView v, int decodeWidth, int decodeHeight);

        /*
         * An AsyncTask class that loads the bitmap in the background thread.
         * Sub-classes should implement their own "protected Bitmap doInBackground(Void... )"
         */
        protected abstract class BitmapLoadTask extends AsyncTask<Void, Void, Bitmap> {
            protected ImageView mView;

            protected BitmapLoadTask(ImageView v) {
                mView = v;
            }

            @Override
            protected void onPostExecute(Bitmap bitmap) {
                if (!isUsing()) return;
                if (bitmap == null) {
                    Log.e(TAG, "Failed decoding bitmap for file:" + path);
                    return;
                }
                BitmapDrawable d = new BitmapDrawable(bitmap);
                mView.setScaleType(ImageView.ScaleType.FIT_XY);
                mView.setImageDrawable(d);
            }
        }
    }

    static class Photo extends LocalMediaData {
        public static final int COL_ID = 0;
        public static final int COL_TITLE = 1;
        public static final int COL_MIME_TYPE = 2;
        public static final int COL_DATE_TAKEN = 3;
        public static final int COL_DATE_MODIFIED = 4;
        public static final int COL_DATA = 5;
        public static final int COL_ORIENTATION = 6;
        public static final int COL_WIDTH = 7;
        public static final int COL_HEIGHT = 8;

        static final Uri CONTENT_URI = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;

        static final String QUERY_ORDER = ImageColumns.DATE_TAKEN + " DESC, "
                + ImageColumns._ID + " DESC";
        static final String[] QUERY_PROJECTION = {
            ImageColumns._ID,           // 0, int
            ImageColumns.TITLE,         // 1, string
            ImageColumns.MIME_TYPE,     // 2, string
            ImageColumns.DATE_TAKEN,    // 3, int
            ImageColumns.DATE_MODIFIED, // 4, int
            ImageColumns.DATA,          // 5, string
            ImageColumns.ORIENTATION,   // 6, int, 0, 90, 180, 270
            ImageColumns.WIDTH,         // 7, int
            ImageColumns.HEIGHT,        // 8, int
        };

        private static final int mSupportedUIActions =
                FilmStripView.ImageData.ACTION_DEMOTE
                | FilmStripView.ImageData.ACTION_PROMOTE;
        private static final int mSupportedDataActions =
                LocalData.ACTION_DELETE;

        // 32K buffer.
        private static final byte[] DECODE_TEMP_STORAGE = new byte[32 * 1024];

        // from MediaStore, can only be 0, 90, 180, 270;
        public int orientation;

        static Photo buildFromCursor(Cursor c) {
            Photo d = new Photo();
            d.id = c.getLong(COL_ID);
            d.title = c.getString(COL_TITLE);
            d.mimeType = c.getString(COL_MIME_TYPE);
            d.dateTaken = c.getLong(COL_DATE_TAKEN);
            d.dateModified = c.getLong(COL_DATE_MODIFIED);
            d.path = c.getString(COL_DATA);
            d.orientation = c.getInt(COL_ORIENTATION);
            d.width = c.getInt(COL_WIDTH);
            d.height = c.getInt(COL_HEIGHT);
            if (d.width <= 0 || d.height <= 0) {
                Log.w(TAG, "Warning! zero dimension for "
                        + d.path + ":" + d.width + "x" + d.height);
                BitmapFactory.Options opts = new BitmapFactory.Options();
                opts.inJustDecodeBounds = true;
                BitmapFactory.decodeFile(d.path, opts);
                if (opts.outWidth != -1 && opts.outHeight != -1)  {
                    d.width = opts.outWidth;
                    d.height = opts.outHeight;
                } else {
                    Log.w(TAG, "Warning! dimension decode failed for " + d.path);
                    Bitmap b = BitmapFactory.decodeFile(d.path);
                    if (b == null) {
                        return null;
                    }
                    d.width = b.getWidth();
                    d.height = b.getHeight();
                }
            }
            if (d.orientation == 90 || d.orientation == 270) {
                int b = d.width;
                d.width = d.height;
                d.height = b;
            }
            return d;
        }

        @Override
        public String toString() {
            return "Photo:" + ",data=" + path + ",mimeType=" + mimeType
                    + "," + width + "x" + height + ",orientation=" + orientation
                    + ",date=" + new Date(dateTaken);
        }

        @Override
        public int getType() {
            return TYPE_PHOTO;
        }

        @Override
        public boolean isUIActionSupported(int action) {
            return ((action & mSupportedUIActions) == action);
        }

        @Override
        public boolean isDataActionSupported(int action) {
            return ((action & mSupportedDataActions) == action);
        }

        @Override
        public boolean delete(Context c) {
            ContentResolver cr = c.getContentResolver();
            cr.delete(CONTENT_URI, ImageColumns._ID + "=" + id, null);
            return super.delete(c);
        }

        @Override
        protected BitmapLoadTask getBitmapLoadTask(
                ImageView v, int decodeWidth, int decodeHeight) {
            return new PhotoBitmapLoadTask(v, decodeWidth, decodeHeight);
        }

        private final class PhotoBitmapLoadTask extends BitmapLoadTask {
            private int mDecodeWidth;
            private int mDecodeHeight;

            public PhotoBitmapLoadTask(ImageView v, int decodeWidth, int decodeHeight) {
                super(v);
                mDecodeWidth = decodeWidth;
                mDecodeHeight = decodeHeight;
            }

            @Override
            protected Bitmap doInBackground(Void... v) {
                BitmapFactory.Options opts = null;
                Bitmap b;
                int sample = 1;
                while (mDecodeWidth * sample < width
                        || mDecodeHeight * sample < height) {
                    sample *= 2;
                }
                opts = new BitmapFactory.Options();
                opts.inSampleSize = sample;
                opts.inTempStorage = DECODE_TEMP_STORAGE;
                if (isCancelled() || !isUsing()) {
                    return null;
                }
                b = BitmapFactory.decodeFile(path, opts);
                if (orientation != 0) {
                    if (isCancelled() || !isUsing()) {
                        return null;
                    }
                    Matrix m = new Matrix();
                    m.setRotate((float) orientation);
                    b = Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, false);
                }
                return b;
            }
        }
    }

    static class Video extends LocalMediaData {
        public static final int COL_ID = 0;
        public static final int COL_TITLE = 1;
        public static final int COL_MIME_TYPE = 2;
        public static final int COL_DATE_TAKEN = 3;
        public static final int COL_DATE_MODIFIED = 4;
        public static final int COL_DATA = 5;
        public static final int COL_WIDTH = 6;
        public static final int COL_HEIGHT = 7;

        static final Uri CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;

        private static final int mSupportedUIActions =
                FilmStripView.ImageData.ACTION_DEMOTE
                | FilmStripView.ImageData.ACTION_PROMOTE;
        private static final int mSupportedDataActions =
                LocalData.ACTION_DELETE
                | LocalData.ACTION_PLAY;

        static final String QUERY_ORDER = VideoColumns.DATE_TAKEN + " DESC, "
                + VideoColumns._ID + " DESC";
        static final String[] QUERY_PROJECTION = {
            VideoColumns._ID,           // 0, int
            VideoColumns.TITLE,         // 1, string
            VideoColumns.MIME_TYPE,     // 2, string
            VideoColumns.DATE_TAKEN,    // 3, int
            VideoColumns.DATE_MODIFIED, // 4, int
            VideoColumns.DATA,          // 5, string
            VideoColumns.WIDTH,         // 6, int
            VideoColumns.HEIGHT,        // 7, int
            VideoColumns.RESOLUTION
        };

        private Uri mPlayUri;

        static Video buildFromCursor(Cursor c) {
            Video d = new Video();
            d.id = c.getLong(COL_ID);
            d.title = c.getString(COL_TITLE);
            d.mimeType = c.getString(COL_MIME_TYPE);
            d.dateTaken = c.getLong(COL_DATE_TAKEN);
            d.dateModified = c.getLong(COL_DATE_MODIFIED);
            d.path = c.getString(COL_DATA);
            d.width = c.getInt(COL_WIDTH);
            d.height = c.getInt(COL_HEIGHT);
            d.mPlayUri = CONTENT_URI.buildUpon()
                    .appendPath(String.valueOf(d.id)).build();
            MediaMetadataRetriever retriever = new MediaMetadataRetriever();
            retriever.setDataSource(d.path);
            String rotation = retriever.extractMetadata(
                    MediaMetadataRetriever.METADATA_KEY_VIDEO_ROTATION);
            if (d.width == 0 || d.height == 0) {
                d.width = Integer.parseInt(retriever.extractMetadata(
                    MediaMetadataRetriever.METADATA_KEY_VIDEO_WIDTH));
                d.height = Integer.parseInt(retriever.extractMetadata(
                    MediaMetadataRetriever.METADATA_KEY_VIDEO_HEIGHT));
            }
            retriever.release();
            if (rotation.equals("90") || rotation.equals("270")) {
                int b = d.width;
                d.width = d.height;
                d.height = b;
            }
            return d;
        }

        @Override
        public String toString() {
            return "Video:" + ",data=" + path + ",mimeType=" + mimeType
                    + "," + width + "x" + height + ",date=" + new Date(dateTaken);
        }

        @Override
        public int getType() {
            return TYPE_PHOTO;
        }

        @Override
        public boolean isUIActionSupported(int action) {
            return ((action & mSupportedUIActions) == action);
        }

        @Override
        public boolean isDataActionSupported(int action) {
            return ((action & mSupportedDataActions) == action);
        }

        @Override
        public boolean delete(Context ctx) {
            ContentResolver cr = ctx.getContentResolver();
            cr.delete(CONTENT_URI, VideoColumns._ID + "=" + id, null);
            return super.delete(ctx);
        }

        @Override
        public View getView(final Context ctx,
                int decodeWidth, int decodeHeight, Drawable placeHolder) {

            // ImageView for the bitmap.
            ImageView iv = new ImageView(ctx);
            iv.setLayoutParams(new FrameLayout.LayoutParams(
                    ViewGroup.LayoutParams.MATCH_PARENT,
                    ViewGroup.LayoutParams.MATCH_PARENT, Gravity.CENTER));
            fillImageView(ctx, iv, decodeWidth, decodeHeight, placeHolder);

            // ImageView for the play icon.
            ImageView icon = new ImageView(ctx);
            icon.setImageResource(R.drawable.ic_control_play);
            icon.setScaleType(ImageView.ScaleType.CENTER);
            icon.setLayoutParams(new FrameLayout.LayoutParams(
                    ViewGroup.LayoutParams.WRAP_CONTENT,
                    ViewGroup.LayoutParams.WRAP_CONTENT, Gravity.CENTER));
            icon.setOnClickListener(new OnClickListener() {
                @Override
                public void onClick(View v) {
                    Util.playVideo(ctx, mPlayUri, title);
                }
            });

            FrameLayout f = new FrameLayout(ctx);
            f.addView(iv);
            f.addView(icon);
            return f;
        }

        @Override
        protected BitmapLoadTask getBitmapLoadTask(
                ImageView v, int decodeWidth, int decodeHeight) {
            return new VideoBitmapLoadTask(v);
        }

        private final class VideoBitmapLoadTask extends BitmapLoadTask {

            public VideoBitmapLoadTask(ImageView v) {
                super(v);
            }

            @Override
            protected Bitmap doInBackground(Void... v) {
                if (isCancelled() || !isUsing()) {
                    return null;
                }
                android.media.MediaMetadataRetriever retriever = new MediaMetadataRetriever();
                retriever.setDataSource(path);
                byte[] data = retriever.getEmbeddedPicture();
                Bitmap bitmap = null;
                if (isCancelled() || !isUsing()) {
                    retriever.release();
                    return null;
                }
                if (data != null) {
                    bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
                }
                if (bitmap == null) {
                    bitmap = (Bitmap) retriever.getFrameAtTime();
                }
                retriever.release();
                return bitmap;
            }
        }
    }

    /*
     * A LocalData that does nothing but only shows a view.
     */
    public static class LocalViewData implements LocalData {
        private int mWidth;
        private int mHeight;
        View mView;
        private long mDateTaken;
        private long mDateModified;

        public LocalViewData(View v,
                int width, int height,
                int dateTaken, int dateModified) {
            mView = v;
            mWidth = width;
            mHeight = height;
            mDateTaken = dateTaken;
            mDateModified = dateModified;
        }

        @Override
        public long getDateTaken() {
            return mDateTaken;
        }

        @Override
        public long getDateModified() {
            return mDateModified;
        }

        @Override
        public String getTitle() {
            return "";
        }

        @Override
        public int getWidth() {
            return mWidth;
        }

        @Override
        public int getHeight() {
            return mHeight;
        }

        @Override
        public int getType() {
            return FilmStripView.ImageData.TYPE_PHOTO;
        }

        @Override
        public boolean isUIActionSupported(int action) {
            return false;
        }

        @Override
        public boolean isDataActionSupported(int action) {
            return false;
        }

        @Override
        public boolean delete(Context c) {
            return false;
        }

        @Override
        public View getView(Context c, int width, int height, Drawable placeHolder) {
            return mView;
        }

        @Override
        public void prepare() {
            // do nothing.
        }

        @Override
        public void recycle() {
            // do nothing.
        }
    }
}