/*

    File:  ImageReducer.h

    Abstract:  Demonstrates basic image processing using Core Image + AppKit

    Version:  1.0

    Copyright:  © Copyright 2005 Apple Computer, Inc. All rights reserved.

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*/

#import <Cocoa/Cocoa.h>

@class CIFilter;

@class CIImage;

@interface ImageReducer : NSObject

{

    // Input Image

    NSBitmapImageRep *inputBitmapImageRep;

    CIImage *inputCIImage;

    // Filter Chain Bookkeeping

    CIFilter *finalFilter;

    // Stage 1: Resampling Parameters

    BOOL scalesImage;

    int maxPixelsWide;

    int maxPixelsHigh;

    CIFilter *scaleTransformFilter;

    // Stage 2: Sharpening Parameters

    BOOL sharpensImage;

    CIFilter *unsharpMaskFilter;

    // Stage 3: Border and Background Parameters

    BOOL drawBorder;

    float borderCornerRadius;

    float borderThickness;

    NSColor *borderColor;

    // Stage 4: Shadow Parameters

    BOOL addsShadow;

    NSShadow *shadow;

}

#pragma mark *** Initializers ***

- init;

#pragma mark -

#pragma mark *** Input Image Accessors ***

- (NSBitmapImageRep *)inputBitmapImageRep;

- (void)setInputBitmapImageRep:(NSBitmapImageRep *)newInputBitmapImageRep;

#pragma mark -

#pragma mark *** Stage 1: Resampling Parameters ***

- (BOOL)scalesImage;

- (void)setScalesImage:(BOOL)flag;

- (int)maxPixelsWide;

- (void)setMaxPixelsWide:(int)newMaxPixelsWide;

- (int)maxPixelsHigh;

- (void)setMaxPixelsHigh:(int)newMaxPixelsHigh;

#pragma mark -

#pragma mark *** Stage 2: Sharpening Parameters ***

- (BOOL)sharpensImage;

- (void)setSharpensImage:(BOOL)flag;

#pragma mark -

#pragma mark *** Stage 3: Border and Background Parameters ***

- (BOOL)drawBorder;

- (void)setDrawBorder:(BOOL)flag;

- (float)borderCornerRadius;

- (void)setBorderCornerRadius:(float)newBorderCornerRadius;

- (float)borderThickness;

- (void)setBorderThickness:(float)newBorderThickness;

- (NSColor *)borderColor;

- (void)setBorderColor:(NSColor *)newBorderColor;

#pragma mark -

#pragma mark *** Stage 4: Shadow Parameters ***

- (BOOL)addsShadow;

- (void)setAddsShadow:(BOOL)flag;

- (NSShadow *)shadow;

#pragma mark -

#pragma mark *** Filter Accessors ***

- (float)scaleFactor;

- (CIFilter *)unsharpMaskFilter;

#pragma mark -

#pragma mark *** Output Image Accessors ***

- (CIImage *)outputCIImage;

- (NSBitmapImageRep *)outputBitmapImageRep;

- (int)outputPixelsWide;

- (int)outputPixelsHigh;

@end

@interface ImageReducer (NonPrimitiveMethods)

// This is a convenience setter that gets or creates an inputBitmapImageRep from an NSImage.

- (void)setInputImage:(NSImage *)newInputImage;

// This is a convenience getter that wraps the outputBitmapImageRep in an NSImage.

- (NSImage *)outputImage;

@end