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/*
* Copyright (C) 2012 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.dreams.phototable;
import android.content.Context;
import android.content.SharedPreferences;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collection;
/**
* Picks a random image from the local store.
*/
public class StockSource extends PhotoSource {
public static final String ALBUM_ID = "com.android.dreams.phototable.StockSource";
private static final String TAG = "PhotoTable.StockSource";
private static final int[] PHOTOS = { R.drawable.blank_photo };
private final ArrayList<ImageData> mImageCache;
private final ArrayList<AlbumData> mAlbumCache;
private final ArrayList<ImageData> mImageList;
private final ArrayList<AlbumData> mAlbumList;
private final String mStockPhotoName;
public StockSource(Context context, SharedPreferences settings) {
super(context, settings, null);
mSourceName = TAG;
mStockPhotoName = mResources.getString(R.string.stock_photo_album_name, "Default Photos");
mImageCache = new ArrayList<ImageData>(PHOTOS.length);
mAlbumCache = new ArrayList<AlbumData>(1);
mImageList = new ArrayList<ImageData>(PHOTOS.length);
mAlbumList = new ArrayList<AlbumData>(1);
AlbumData albumData = new AlbumData();
albumData.id = ALBUM_ID;
albumData.account = mStockPhotoName;
albumData.title = mStockPhotoName;
mAlbumCache.add(albumData);
for (int i = 0; i < PHOTOS.length; i++) {
ImageData imageData = new ImageData();
imageData.id = Integer.toString(i);
mImageCache.add(imageData);
}
fillQueue();
}
@Override
public Collection<AlbumData> findAlbums() {
if (mAlbumList.isEmpty()) {
mAlbumList.addAll(mAlbumCache);
}
log(TAG, "returning a list of albums: " + mAlbumList.size());
return mAlbumList;
}
@Override
protected Collection<ImageData> findImages(int howMany) {
if (mImageList.isEmpty()) {
mImageList.addAll(mImageCache);
}
return mImageList;
}
@Override
protected InputStream getStream(ImageData data, int longSide) {
InputStream is = null;
try {
log(TAG, "opening:" + data.id);
int idx = Integer.valueOf(data.id);
is = mResources.openRawResource(PHOTOS[idx]);
} catch (Exception ex) {
log(TAG, ex.toString());
is = null;
}
return is;
}
@Override
public ImageData naturalNext(ImageData current) {
int idx = Integer.valueOf(current.id);
idx = (idx + 1) % PHOTOS.length;
return mImageCache.get(idx);
}
@Override
public ImageData naturalPrevious(ImageData current) {
int idx = Integer.valueOf(current.id);
idx = (PHOTOS.length + idx - 1) % PHOTOS.length;
return mImageCache.get(idx);
}
@Override
protected void donePaging(ImageData current) {
}
}
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