//

//  RGBValueTransformers.m

//  

//

//  Created by jcr on Tue Nov 04 2003.

//  Copyright (c) 2003 Apple Computer. All rights reserved.

@implementation RGBTransformer

- initWithColor:(NSColor *) aColor  {  return [self initWithColor:aColor operation:NSCompositePlusDarker]; }

- initWithColor:(NSColor *) aColor operation:(NSCompositingOperation) op

    {

     if (self = [super init])

        {

    [self setColor:aColor];

        [self setCompositingOperation:op];

        return self;

        }

    return nil; 

    }

- (NSColor *) color { return color;}

- (void) setColor:(NSColor *) aColor 

    { 

    if (aColor != color) 

        {

        [aColor retain]; 

        [color release]; 

        color = aColor; 

        }

    }

- (id)transformedValue:(id)value 

    {

        if (value)

            {

//          NSLog(@"transforming %@", [value name]);

            return [value tintedImageWithColor:[self color] operation:compositingOperation];

            }

        return nil;

    }

+ transformerWithColor:(NSColor *) aColor {  return [[[self alloc] initWithColor:aColor] autorelease]; }

+ transformerWithColor:(NSColor *) aColor operation:(NSCompositingOperation) op

    {

    return [[[[self class] alloc] initWithColor:aColor operation:op] autorelease];

    }

+ (Class)transformedValueClass { return [NSImage class]; }

+ (BOOL)supportsReverseTransformation { return NO; }

- (void) setCompositingOperation:(NSCompositingOperation) op { compositingOperation = op; }

- (NSCompositingOperation) compositingOperation { return compositingOperation; }

@end

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