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/*
* Copyright (C) 2014 Square, Inc.
*
* 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.squareup.picasso;
import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.provider.MediaStore;
import java.io.IOException;
import static android.content.ContentUris.parseId;
import static android.provider.MediaStore.Images.Thumbnails.FULL_SCREEN_KIND;
import static android.provider.MediaStore.Images.Thumbnails.MICRO_KIND;
import static android.provider.MediaStore.Images.Thumbnails.MINI_KIND;
import static android.provider.MediaStore.Images.Thumbnails.getThumbnail;
import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.FULL;
import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.MICRO;
import static com.squareup.picasso.MediaStoreBitmapHunter.PicassoKind.MINI;
class MediaStoreBitmapHunter extends ContentStreamBitmapHunter {
private static final String[] CONTENT_ORIENTATION = new String[] {
MediaStore.Images.ImageColumns.ORIENTATION
};
MediaStoreBitmapHunter(Context context, Picasso picasso, Dispatcher dispatcher, Cache cache,
Stats stats, Action action) {
super(context, picasso, dispatcher, cache, stats, action);
}
@Override Bitmap decode(Request data) throws IOException {
ContentResolver contentResolver = context.getContentResolver();
setExifRotation(getExitOrientation(contentResolver, data.uri));
if (data.hasSize()) {
PicassoKind picassoKind = getPicassoKind(data.targetWidth, data.targetHeight);
if (picassoKind == FULL) {
return super.decode(data);
}
long id = parseId(data.uri);
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
calculateInSampleSize(data.targetWidth, data.targetHeight, picassoKind.width,
picassoKind.height, options);
Bitmap result = getThumbnail(contentResolver, id, picassoKind.androidKind, options);
if (result != null) {
return result;
}
}
return super.decode(data);
}
static PicassoKind getPicassoKind(int targetWidth, int targetHeight) {
if (targetWidth <= MICRO.width && targetHeight <= MICRO.height) {
return MICRO;
} else if (targetWidth <= MINI.width && targetHeight <= MINI.height) {
return MINI;
}
return FULL;
}
static int getExitOrientation(ContentResolver contentResolver, Uri uri) {
Cursor cursor = null;
try {
cursor = contentResolver.query(uri, CONTENT_ORIENTATION, null, null, null);
if (cursor == null || !cursor.moveToFirst()) {
return 0;
}
return cursor.getInt(0);
} catch (RuntimeException ignored) {
// If the orientation column doesn't exist, assume no rotation.
return 0;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
enum PicassoKind {
MICRO(MICRO_KIND, 96, 96),
MINI(MINI_KIND, 512, 384),
FULL(FULL_SCREEN_KIND, -1, -1);
final int androidKind;
final int width;
final int height;
PicassoKind(int androidKind, int width, int height) {
this.androidKind = androidKind;
this.width = width;
this.height = height;
}
}
}
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