/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "SDWebImageCompat.h"
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/**
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UIImage category for memory cache cost.
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*/
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@interface UIImage (MemoryCacheCost)
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/**
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The memory cache cost for specify image used by image cache. The cost function is the bytes size held in memory.
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If you set some associated object to `UIImage`, you can set the custom value to indicate the memory cost.
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For `UIImage`, this method return the single frame bytes size when `image.images` is nil for static image. Return full frame bytes size when `image.images` is not nil for animated image.
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For `NSImage`, this method return the single frame bytes size because `NSImage` does not store all frames in memory.
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@note Note that because of the limitations of category this property can get out of sync if you create another instance with CGImage or other methods.
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@note For custom animated class conforms to `SDAnimatedImage`, you can override this getter method in your subclass to return a more proper value instead, which representing the current frame's total bytes.
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*/
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@property (assign, nonatomic) NSUInteger sd_memoryCost;
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@end
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