/*

 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.

 * Copyright (C) 2006 Nefaur Khandker <nefaurk@gmail.com>  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

 */

#import "SVGTest.h"

#import <WebKit/WebView.h>

@implementation SVGTest

+ (id)testWithSVGPath:(NSString *)svgPath imagePath:(NSString *)imagePath

{

    SVGTest *test = [[self alloc] initWithSVGPath:svgPath imagePath:imagePath];

    return [test autorelease];

}

static WebView *__sharedDrawView = nil;

+ (WebView *)sharedDrawView

{

    if (!__sharedDrawView) {

        __sharedDrawView = [[WebView alloc] initWithFrame:NSMakeRect(0,0,0,0)];

    }

    return __sharedDrawView;

}

- (id)initWithSVGPath:(NSString *)svgPath imagePath:(NSString *)imagePath

{

    if (self = [super init]) {

        _svgPath = [svgPath copy];

        _imagePath = [imagePath copy];

    }

    return self;

}

- (NSString *)imagePath

{

    return _imagePath;

}

- (NSString *)svgPath

{

    return _svgPath;

}

- (NSImage *)image

{

    if (!_image && _imagePath) {

        _image = [[NSImage alloc] initByReferencingFile:_imagePath];

    }

    return _image;

}

- (NSString *)name

{

    NSMutableString *name = [[[[_svgPath lastPathComponent] stringByDeletingPathExtension] mutableCopy] autorelease];

    [name replaceOccurrencesOfString:@"_" withString:@" " options:0 range:NSMakeRange(0, [name length])];

    return [name capitalizedString];

}

- (void)generateCompositeIfNecessary

{

    if (!_compositeImage) {

        WebView *view = [SVGTest sharedDrawView];

        NSSize svgSize = [view bounds].size;

        NSImage *image = [self image];

        NSSize imageSize = [image size];

        NSBitmapImageRep *svgImage = [view bitmapImageRepForCachingDisplayInRect:[view bounds]];

        [view cacheDisplayInRect:[view bounds] toBitmapImageRep:svgImage];

        NSSize unionSize = NSMakeSize(MAX(svgSize.width, imageSize.width), MAX(svgSize.height, imageSize.height));

        _compositeImage = [[NSImage alloc] initWithSize:unionSize];

        [_compositeImage lockFocus];

        [svgImage drawInRect:NSMakeRect(0,0,svgSize.width,svgSize.height)];

        [image drawInRect:NSMakeRect(0,0,imageSize.width,imageSize.height)

                fromRect:NSMakeRect(0,0,imageSize.width,imageSize.height)

                 operation:NSCompositeXOR fraction:1.0];

        [_compositeImage unlockFocus];

    }

}

- (NSImage *)compositeImage

{

    [self generateCompositeIfNecessary];

    return _compositeImage;

}

@end