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// Copyright (c) 2012, Ettore Pasquini
// Copyright (c) 2012, Cubelogic
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// - Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// - Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Created by Ettore Pasquini on 7/5/12.
//
#import <QuartzCore/QuartzCore.h>
#import "CLCGImageLoader.h"
@interface CLCGLayer : CALayer
/**
* Loads image from a URL and sets it as this layer's contents.
* Will load the retina or non-retina image according to device capabilities.
*
* If a cache is provided, the downloaded UIImage object will be stored there
* with the used URL as key. The caller will need to call cleanupLayer if it
* is about to release the cache object from memory in order to avoid a
* dangling pointer error.
*
* TODO: the caller doesn't know which URL was actually used.
*/
-(void)loadImageForURL:(NSString*)url
retinaURL:(NSString*)retinaurl
cache:(NSCache*)cache;
/**
* Removes content, cancels pending request, and zeros out delegate and cache
* pointers.
*/
-(void)cleanupLayer;
@end
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