/*

File: CIView.m

Abstract:   Implemntation of the CoreImage WebKit Plugin.

Version: 1.1

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*/ 

#import "CIView.h"

#import <WebKit/WebKit.h>

@implementation CIView

+ (NSView *)plugInViewWithArguments:(NSDictionary *)arguments

{

    CIView *ciView = [[[self alloc] init] autorelease];

    [ciView setArguments:arguments];

    return ciView;

}

- (void)dealloc

{   

    [_arguments release];

    [_theImage release];

    [super dealloc];

}

- (void)setArguments:(NSDictionary *)arguments

{

    [arguments copy];

    [_arguments release];

    _arguments = arguments;

}

- (void)webPlugInInitialize

{

    gammaValue = 0.75;

    if(!_currentFilter)

    {

    _currentFilter = [[CIFilter filterWithName:@"CIGammaAdjust"] retain];

    [_currentFilter setDefaults];

    }

}

- (void)loadImage

{

    if (imageURL != nil && [imageURL length] != 0) 

    {

    NSURL *URL = [NSURL URLWithString:imageURL];

    NSData  *theData = [NSData dataWithContentsOfURL:URL];

    [_theImage release];

    _theImage = [[CIImage imageWithData:theData] retain];

    [_currentFilter setValue:_theImage forKey:@"inputImage"];

    }

}

- (void)setupImage

{

    if(!_theImage)

    [self loadImage];

    if (_theImage) 

    {

    [_currentFilter setValue:[NSNumber numberWithFloat:gammaValue] forKey:@"inputPower"];

    [self setImage:[_currentFilter valueForKey:@"outputImage"]];

    }

}

- (void)webPlugInStart

{

    if (!_theImage) {

    NSDictionary *webPluginAttributesObj = [_arguments objectForKey:WebPlugInAttributesKey];

    imageURL = [webPluginAttributesObj objectForKey:@"src"];

    [_currentFilter setValue:_theImage forKey:@"inputImage"];

    [self setupImage];

    }

}

- (void)webPlugInStop

{

}

- (void)webPlugInDestroy

{

}

- (void)webPlugInSetIsSelected:(BOOL)isSelected

{

}

// Scripting support

+ (BOOL)isSelectorExcludedFromWebScript:(SEL)selector

{

    if (selector == @selector(setGamma) || selector == @selector(setImage)) {

        return NO;

    }

    return YES;

}

+ (BOOL)isKeyExcludedFromWebScript:(const char *)property

{

    if (strcmp(property, "imageURL") == 0) {

        return NO;

    }

    if (strcmp(property, "gammaValue") == 0) {

        return NO;

    }

    return YES;

}

- (id)objectForWebScript

{

    return self;

}

- (void)setGamma

{

    [self setupImage];

}

- (void)setImage

{

    [self loadImage];

    [self setupImage];

}

@end