/*

     File: EffectStack.h

 Abstract: n/a

  Version: 2.1

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 Neither the name, trademarks, service marks or logos of Apple Inc. may

 be used to endorse or promote products derived from the Apple Software

 without specific prior written permission from Apple.  Except as

 expressly stated in this notice, no other rights or licenses, express or

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 The Apple Software is provided by Apple on an "AS IS" basis.  APPLE

 MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION

 THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS

 FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND

 OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL

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 */

#import <Cocoa/Cocoa.h>

#import <QuartzCore/QuartzCore.h>

@class CoreImageView;

@interface EffectStack : NSView

{

    CIImage *baseImage;         // a pointer to the base image in the array (generally layers[0].image

    NSMutableArray *layers;     // effect stack filter, image, text layers in an array

}

// designated init routine

- (id)init;

// effect stack layer operationsd

- (void)insertFilterLayer:(CIFilter *)filter atIndex:(NSInteger)index;

- (void)insertImageLayer:(CIImage *)image withFilename:(NSString *)filename atIndex:(NSInteger)index;

- (void)insertTextLayer:(NSString *)string withImage:(CIImage *)image atIndex:(NSInteger)index;

- (void)removeLayerAtIndex:(NSInteger)index;

- (void)removeAllLayers;

// getters

- (NSInteger)layerCount;

- (BOOL)layerEnabled:(NSInteger)index;

- (NSString *)typeAtIndex:(NSInteger)index;

- (CIFilter *)filterAtIndex:(NSInteger)index;

- (CIImage *)imageAtIndex:(NSInteger)index;

- (NSPoint)offsetAtIndex:(NSInteger)index;

- (NSString *)filenameAtIndex:(NSInteger)index;

- (NSString *)imageFilePathAtIndex:(NSInteger)index;

- (NSData *)imageFileDataAtIndex:(NSInteger)index;

- (NSString *)stringAtIndex:(NSInteger)index;

- (NSMutableDictionary *)mutableDictionaryAtIndex:(NSInteger)index;

- (CIImage *)baseImage;

- (NSString *)filterLayer:(NSInteger)index imageFilePathValueForKey:(NSString *)key;

- (NSData *)filterLayer:(NSInteger)index imageFileDataValueForKey:(NSString *)key;

// setters

- (void)setLayer:(NSInteger)index enabled:(BOOL)enabled;

- (void)setBaseImage:(CIImage *)image withFilename:(NSString *)filename andImageFilePath:(NSString *)path;

- (void)setFilterLayer:(NSInteger)index imageFilePathValue:(NSString *)path forKey:(NSString *)key;

- (void)setImageLayer:(NSInteger)index offset:(NSPoint)offset;

- (void)setImageLayer:(NSInteger)index image:(CIImage *)image andFilename:(NSString *)filename;

- (void)setImageLayer:(NSInteger)index imageFilePath:(NSString *)path;

- (void)setTextLayer:(NSInteger)index offset:(NSPoint)offset;

- (void)setTextLayer:(NSInteger)index string:(NSString *)string andImage:(CIImage *)image;

// for core image result graph from stack

- (CIImage *)coreImageResultForRect:(NSRect)bounds;

// convenience methods for preventing exceptions during evaluation and for reddening a box (alarm)

- (BOOL)filterHasMissingImage:(CIFilter *)f;

- (BOOL)hasMissingImage;

// for preset encoding

- (void)encodeValue:(id)obj forKey:(NSString *)key intoDictionary:(NSMutableDictionary *)v;

- (id)decodedValueForKey:(NSString *)key ofClass:(NSString *)classname fromDictionary:(NSDictionary *)v;

@end