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/*
* Copyright (C) 2014 The CyanogenMod 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.cyanogenmod.eleven.cache;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.TransitionDrawable;
import android.widget.ImageView;
import com.cyanogenmod.eleven.cache.ImageWorker.ImageType;
import com.cyanogenmod.eleven.utils.ImageUtils;
/**
* The actual {@link android.os.AsyncTask} that will process the image.
*/
public class SimpleBitmapWorkerTask extends BitmapWorkerTask<String, Void, TransitionDrawable> {
/**
* Constructor of <code>BitmapWorkerTask</code>
*
* @param key the key of the image to store to
* @param imageView The {@link ImageView} to use.
* @param imageType The type of image URL to fetch for.
* @param fromDrawable what drawable to transition from
*/
public SimpleBitmapWorkerTask(final String key, final ImageView imageView, final ImageType imageType,
final Drawable fromDrawable, final Context context) {
super(key, imageView, imageType, fromDrawable, context);
}
/**
* Constructor of <code>BitmapWorkerTask</code>
*
* @param key the key of the image to store to
* @param imageView The {@link ImageView} to use.
* @param imageType The type of image URL to fetch for.
* @param fromDrawable what drawable to transition from
* @param scaleImgToView flag to scale the bitmap to the image view bounds
*/
public SimpleBitmapWorkerTask(final String key, final ImageView imageView, final ImageType imageType,
final Drawable fromDrawable, final Context context, final boolean scaleImgToView) {
super(key, imageView, imageType, fromDrawable, context, scaleImgToView);
}
/**
* {@inheritDoc}
*/
@Override
protected TransitionDrawable doInBackground(final String... params) {
if (isCancelled()) {
return null;
}
final Bitmap bitmap = getBitmapInBackground(params);
if (mScaleImgToView) {
Bitmap scaledBitmap = ImageUtils.scaleBitmapForImageView(bitmap, getAttachedImageView());
return createImageTransitionDrawable(scaledBitmap);
}
else
return createImageTransitionDrawable(bitmap);
}
/**
* {@inheritDoc}
*/
@Override
protected void onPostExecute(TransitionDrawable transitionDrawable) {
final ImageView imageView = getAttachedImageView();
if (transitionDrawable != null && imageView != null) {
imageView.setImageDrawable(transitionDrawable);
} else if (imageView != null) {
imageView.setImageDrawable(mFromDrawable);
}
}
}
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