Dropping back FilmStripView codes.

Ongoing work that doesn't affect builds.

Change-Id: I83d81fa91e87d10787c3ce1d767bc41131341067

1 files changed, 604 insertions, 0 deletions

diff --git a/src/com/android/camera/data/CameraDataAdapter.java b/src/com/android/camera/data/CameraDataAdapter.java
new file mode 100644
index 000000000..cb67aacd7
--- /dev/null
+++ b/src/com/android/camera/data/CameraDataAdapter.java
@@ -0,0 +1,604 @@
+/*
+ * 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.Drawable;
+import android.media.MediaMetadataRetriever;
+import android.os.AsyncTask;
+import android.provider.MediaStore;
+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 android.view.View;
+import android.widget.ImageView;
+
+import com.android.camera.Storage;
+import com.android.camera.ui.FilmStripView;
+import com.android.camera.ui.FilmStripView.ImageData;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * A FilmStripDataProvider that provide data in the camera folder.
+ *
+ * The given view for camera preview won't be added until the preview info
+ * has been set by setCameraPreviewInfo(int, int).
+ */
+public class CameraDataAdapter implements FilmStripView.DataAdapter {
+    private static final String TAG = CameraDataAdapter.class.getSimpleName();
+
+    private static final int DEFAULT_DECODE_SIZE = 3000;
+    private static final String[] CAMERA_PATH = { Storage.DIRECTORY + "%" };
+
+    private List<LocalData> mImages;
+
+    private Listener mListener;
+    private View mCameraPreviewView;
+    private Drawable mPlaceHolder;
+
+    private int mSuggestedWidth = DEFAULT_DECODE_SIZE;
+    private int mSuggestedHeight = DEFAULT_DECODE_SIZE;
+
+    public CameraDataAdapter(Drawable placeHolder) {
+        mPlaceHolder = placeHolder;
+    }
+
+    public void setCameraPreviewInfo(View cameraPreview, int width, int height) {
+        mCameraPreviewView = cameraPreview;
+        addOrReplaceCameraData(buildCameraImageData(width, height));
+    }
+
+    public void requestLoad(ContentResolver resolver) {
+        QueryTask qtask = new QueryTask();
+        qtask.execute(resolver);
+    }
+
+    @Override
+    public int getTotalNumber() {
+        if (mImages == null) return 0;
+        return mImages.size();
+    }
+
+    @Override
+    public ImageData getImageData(int id) {
+        if (mImages == null || id >= mImages.size()) return null;
+        return mImages.get(id);
+    }
+
+    @Override
+    public void suggestSize(int w, int h) {
+        if (w <= 0 || h <= 0) {
+            mSuggestedWidth  = mSuggestedHeight = DEFAULT_DECODE_SIZE;
+        } else {
+            mSuggestedWidth = (w < DEFAULT_DECODE_SIZE ? w : DEFAULT_DECODE_SIZE);
+            mSuggestedHeight = (h < DEFAULT_DECODE_SIZE ? h : DEFAULT_DECODE_SIZE);
+        }
+    }
+
+    @Override
+    public View getView(Context c, int dataID) {
+        if (mImages == null) return null;
+        if (dataID >= mImages.size() || dataID < 0) {
+            return null;
+        }
+
+        return mImages.get(dataID).getView(
+                c, mSuggestedWidth, mSuggestedHeight, mPlaceHolder);
+    }
+
+    @Override
+    public void setListener(Listener listener) {
+        mListener = listener;
+        if (mImages != null) mListener.onDataLoaded();
+    }
+
+    private LocalData buildCameraImageData(int width, int height) {
+        LocalData d = new CameraPreviewData(width, height);
+        return d;
+    }
+
+    private void addOrReplaceCameraData(LocalData data) {
+        if (mImages == null) mImages = new ArrayList<LocalData>();
+        if (mImages.size() == 0) {
+            // No data at all.
+            mImages.add(0, data);
+            if (mListener != null) mListener.onDataLoaded();
+            return;
+        }
+
+        LocalData first = mImages.get(0);
+        if (first.getType() == ImageData.TYPE_CAMERA_PREVIEW) {
+            // Replace the old camera data.
+            mImages.set(0, data);
+            if (mListener != null) {
+                mListener.onDataUpdated(new UpdateReporter() {
+                    @Override
+                    public boolean isDataRemoved(int id) {
+                        return false;
+                    }
+
+                    @Override
+                    public boolean isDataUpdated(int id) {
+                        if (id == 0) return true;
+                        return false;
+                    }
+                });
+            }
+        } else {
+            // Add a new camera data.
+            mImages.add(0, data);
+            if (mListener != null) {
+                mListener.onDataLoaded();
+            }
+        }
+    }
+
+    private class QueryTask extends AsyncTask<ContentResolver, Void, List<LocalData>> {
+        @Override
+        protected List<LocalData> doInBackground(ContentResolver... resolver) {
+            List<LocalData> l = new ArrayList<LocalData>();
+            // Photos
+            Cursor c = resolver[0].query(
+                    Images.Media.EXTERNAL_CONTENT_URI,
+                    LocalPhotoData.QUERY_PROJECTION,
+                    MediaStore.Images.Media.DATA + " like ? ", CAMERA_PATH,
+                    LocalPhotoData.QUERY_ORDER);
+            if (c != null && c.moveToFirst()) {
+                // build up the list.
+                while (true) {
+                    LocalData data = LocalPhotoData.buildFromCursor(c);
+                    if (data != null) {
+                        l.add(data);
+                    } else {
+                        Log.e(TAG, "Error loading data:"
+                                + c.getString(LocalPhotoData.COL_DATA));
+                    }
+                    if (c.isLast()) break;
+                    c.moveToNext();
+                }
+            }
+            if (c != null) c.close();
+
+            c = resolver[0].query(
+                    Video.Media.EXTERNAL_CONTENT_URI,
+                    LocalVideoData.QUERY_PROJECTION,
+                    MediaStore.Video.Media.DATA + " like ? ", CAMERA_PATH,
+                    LocalVideoData.QUERY_ORDER);
+            if (c != null && c.moveToFirst()) {
+                // build up the list.
+                c.moveToFirst();
+                while (true) {
+                    LocalData data = LocalVideoData.buildFromCursor(c);
+                    if (data != null) {
+                        l.add(data);
+                        Log.v(TAG, "video data added:" + data);
+                    } else {
+                        Log.e(TAG, "Error loading data:"
+                                + c.getString(LocalVideoData.COL_DATA));
+                    }
+                    if (!c.isLast()) c.moveToNext();
+                    else break;
+                }
+            }
+            if (c != null) c.close();
+
+            if (l.size() == 0) return null;
+
+            Collections.sort(l);
+            return l;
+        }
+
+        @Override
+        protected void onPostExecute(List<LocalData> l) {
+            boolean changed = (l != mImages);
+            LocalData cameraData = null;
+            if (mImages != null && mImages.size() > 0) {
+                cameraData = mImages.get(0);
+                if (cameraData.getType() != ImageData.TYPE_CAMERA_PREVIEW) {
+                    cameraData = null;
+                }
+            }
+
+            mImages = l;
+            if (cameraData != null) {
+                // camera view exists, so we make sure at least have 1 data in the list.
+                if (mImages == null) mImages = new ArrayList<LocalData>();
+                mImages.add(0, cameraData);
+                if (mListener != null) {
+                    // Only the camera data is not changed, everything else is changed.
+                    mListener.onDataUpdated(new UpdateReporter() {
+                        @Override
+                        public boolean isDataRemoved(int id) {
+                            return false;
+                        }
+
+                        @Override
+                        public boolean isDataUpdated(int id) {
+                            if (id == 0) return false;
+                            return true;
+                        }
+                    });
+                }
+            } else {
+                // both might be null.
+                if (changed) mListener.onDataLoaded();
+            }
+        }
+    }
+
+    private abstract static class LocalData implements
+            FilmStripView.ImageData,
+            Comparable<LocalData> {
+        public long id;
+        public String title;
+        public String mimeType;
+        public long dateTaken;
+        public long dateModified;
+        public String path;
+        // width and height should be adjusted according to orientation.
+        public int width;
+        public int height;
+
+        @Override
+        public int getWidth() {
+            return width;
+        }
+
+        @Override
+        public int getHeight() {
+            return height;
+        }
+
+        @Override
+        public boolean isActionSupported(int action) {
+            return false;
+        }
+
+        private int compare(long v1, long v2) {
+            return ((v1 > v2) ? 1 : ((v1 < v2) ? -1 : 0));
+        }
+
+        @Override
+        public int compareTo(LocalData d) {
+            int cmp = compare(d.dateTaken, dateTaken);
+            if (cmp != 0) return cmp;
+            cmp = compare(d.dateModified, dateModified);
+            if (cmp != 0) return cmp;
+            cmp = d.title.compareTo(title);
+            if (cmp != 0) return cmp;
+            return compare(d.id, id);
+        }
+
+        @Override
+        public abstract int getType();
+
+        abstract View getView(Context c, int width, int height, Drawable placeHolder);
+    }
+
+    private class CameraPreviewData extends LocalData {
+        CameraPreviewData(int w, int h) {
+            width = w;
+            height = h;
+        }
+
+        @Override
+        public int getWidth() {
+            return width;
+        }
+
+        @Override
+        public int getHeight() {
+            return height;
+        }
+
+        @Override
+        public int getType() {
+            return ImageData.TYPE_CAMERA_PREVIEW;
+        }
+
+        @Override
+        View getView(Context c, int width, int height, Drawable placeHolder) {
+            return mCameraPreviewView;
+        }
+    }
+
+    private static class LocalPhotoData extends LocalData {
+        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 COL_ID = 0;
+        private static final int COL_TITLE = 1;
+        private static final int COL_MIME_TYPE = 2;
+        private static final int COL_DATE_TAKEN = 3;
+        private static final int COL_DATE_MODIFIED = 4;
+        private static final int COL_DATA = 5;
+        private static final int COL_ORIENTATION = 6;
+        private static final int COL_WIDTH = 7;
+        private static final int COL_HEIGHT = 8;
+
+        // 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 LocalPhotoData buildFromCursor(Cursor c) {
+            LocalPhotoData d = new LocalPhotoData();
+            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.v(TAG, "warning! zero dimension for "
+                        + d.path + ":" + d.width + "x" + d.height);
+                Dimension dim = decodeDimension(d.path);
+                if (dim != null) {
+                    d.width = dim.width;
+                    d.height = dim.height;
+                } else {
+                    Log.v(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
+        View getView(Context c,
+                int decodeWidth, int decodeHeight, Drawable placeHolder) {
+            ImageView v = new ImageView(c);
+            v.setImageDrawable(placeHolder);
+
+            v.setScaleType(ImageView.ScaleType.FIT_XY);
+            LoadBitmapTask task = new LoadBitmapTask(v, decodeWidth, decodeHeight);
+            task.execute();
+            return v;
+        }
+
+        @Override
+        public String toString() {
+            return "LocalPhotoData:" + ",data=" + path + ",mimeType=" + mimeType
+                    + "," + width + "x" + height + ",orientation=" + orientation
+                    + ",date=" + new Date(dateTaken);
+        }
+
+        @Override
+        public int getType() {
+            return TYPE_PHOTO;
+        }
+
+        private static Dimension decodeDimension(String path) {
+            BitmapFactory.Options opts = new BitmapFactory.Options();
+            opts.inJustDecodeBounds = true;
+            Bitmap b = BitmapFactory.decodeFile(path, opts);
+            if (b == null) return null;
+            Dimension d = new Dimension();
+            d.width = opts.outWidth;
+            d.height = opts.outHeight;
+            return d;
+        }
+
+        private static class Dimension {
+            public int width;
+            public int height;
+        }
+
+        private class LoadBitmapTask extends AsyncTask<Void, Void, Bitmap> {
+            private ImageView mView;
+            private int mDecodeWidth;
+            private int mDecodeHeight;
+
+            public LoadBitmapTask(ImageView v, int decodeWidth, int decodeHeight) {
+                mView = 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()) return null;
+                b = BitmapFactory.decodeFile(path, opts);
+                if (orientation != 0) {
+                    if (isCancelled()) return null;
+                    Matrix m = new Matrix();
+                    m.setRotate((float) orientation);
+                    b = Bitmap.createBitmap(b, 0, 0, b.getWidth(), b.getHeight(), m, false);
+                }
+                return b;
+            }
+
+            @Override
+            protected void onPostExecute(Bitmap bitmap) {
+                if (bitmap == null) {
+                    Log.e(TAG, "Cannot decode bitmap file:" + path);
+                    return;
+                }
+                mView.setScaleType(ImageView.ScaleType.FIT_XY);
+                mView.setImageBitmap(bitmap);
+            }
+        }
+    }
+
+    private static class LocalVideoData extends LocalData {
+        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 static final int COL_ID = 0;
+        private static final int COL_TITLE = 1;
+        private static final int COL_MIME_TYPE = 2;
+        private static final int COL_DATE_TAKEN = 3;
+        private static final int COL_DATE_MODIFIED = 4;
+        private static final int COL_DATA = 5;
+        private static final int COL_WIDTH = 6;
+        private static final int COL_HEIGHT = 7;
+
+        public int resolutionW;
+        public int resolutionH;
+
+        static LocalVideoData buildFromCursor(Cursor c) {
+            LocalVideoData d = new LocalVideoData();
+            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);
+            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
+        View getView(Context c,
+                int decodeWidth, int decodeHeight, Drawable placeHolder) {
+            ImageView v = new ImageView(c);
+            v.setImageDrawable(placeHolder);
+
+            v.setScaleType(ImageView.ScaleType.FIT_XY);
+            LoadBitmapTask task = new LoadBitmapTask(v);
+            task.execute();
+            return v;
+        }
+
+
+        @Override
+        public String toString() {
+            return "LocalVideoData:" + ",data=" + path + ",mimeType=" + mimeType
+                    + "," + width + "x" + height + ",date=" + new Date(dateTaken);
+        }
+
+        @Override
+        public int getType() {
+            return TYPE_PHOTO;
+        }
+
+        private static Dimension decodeDimension(String path) {
+            Dimension d = new Dimension();
+            return d;
+        }
+
+        private static class Dimension {
+            public int width;
+            public int height;
+        }
+
+        private class LoadBitmapTask extends AsyncTask<Void, Void, Bitmap> {
+            private ImageView mView;
+
+            public LoadBitmapTask(ImageView v) {
+                mView = v;
+            }
+
+            @Override
+            protected Bitmap doInBackground(Void... v) {
+                android.media.MediaMetadataRetriever retriever = new MediaMetadataRetriever();
+                retriever.setDataSource(path);
+                byte[] data = retriever.getEmbeddedPicture();
+                Bitmap bitmap = null;
+                if (data != null) {
+                    bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
+                }
+                if (bitmap == null) {
+                    bitmap = (Bitmap) retriever.getFrameAtTime();
+                }
+                retriever.release();
+                return bitmap;
+            }
+
+            @Override
+            protected void onPostExecute(Bitmap bitmap) {
+                if (bitmap == null) {
+                    Log.e(TAG, "Cannot decode video file:" + path);
+                    return;
+                }
+                mView.setImageBitmap(bitmap);
+            }
+        }
+    }
+}