ImageReducer.h

/*
    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