/*
* Copyright (C) 2009 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.cooliris.wallpaper;
import java.io.IOException;
import java.net.URISyntaxException;
import com.cooliris.cache.CacheService;
import com.cooliris.cache.ImageList;
import com.cooliris.media.UriTexture;
import com.cooliris.media.Util;
import android.content.Context;
import android.graphics.Bitmap;
public class RandomDataSource implements Slideshow.DataSource {
public Bitmap getBitmapForIndex(Context context, int currentSlideshowCounter) {
ImageList list = CacheService.getImageList(context);
// Once we have the id and the thumbid, we can return a bitmap
// First we select a random numbers
if (list.ids == null)
return null;
double random = Math.random();
random *= list.ids.length;
int index = (int) random;
long cacheId = list.thumbids[index];
final String uri = CacheService.BASE_CONTENT_STRING_IMAGES + list.ids[index];
Bitmap retVal = null;
try {
retVal = UriTexture.createFromUri(context, uri, UriTexture.MAX_RESOLUTION, UriTexture.MAX_RESOLUTION, cacheId, null);
if (retVal != null) {
retVal = Util.rotate(retVal, list.orientation[index]);
}
} catch (OutOfMemoryError e) {
;
} catch (IOException e) {
;
} catch (URISyntaxException e) {
;
}
return retVal;
}
}