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1/*
2 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
3 * Copyright (C) 2006 Nefaur Khandker <nefaurk@gmail.com>  All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#import "SVGTest.h"
28
29#import <WebKit/WebView.h>
30
31@implementation SVGTest
32
33+ (id)testWithSVGPath:(NSString *)svgPath imagePath:(NSString *)imagePath
34{
35    SVGTest *test = [[self alloc] initWithSVGPath:svgPath imagePath:imagePath];
36    return [test autorelease];
37}
38
39static WebView *__sharedDrawView = nil;
40+ (WebView *)sharedDrawView
41{
42    if (!__sharedDrawView) {
43        __sharedDrawView = [[WebView alloc] initWithFrame:NSMakeRect(0,0,0,0)];
44    }
45    return __sharedDrawView;
46}
47
48- (id)initWithSVGPath:(NSString *)svgPath imagePath:(NSString *)imagePath
49{
50    if (self = [super init]) {
51        _svgPath = [svgPath copy];
52        _imagePath = [imagePath copy];
53    }
54    return self;
55}
56
57- (NSString *)imagePath
58{
59    return _imagePath;
60}
61
62- (NSString *)svgPath
63{
64    return _svgPath;
65}
66
67- (NSImage *)image
68{
69    if (!_image && _imagePath) {
70        _image = [[NSImage alloc] initByReferencingFile:_imagePath];
71    }
72    return _image;
73}
74
75- (NSString *)name
76{
77    NSMutableString *name = [[[[_svgPath lastPathComponent] stringByDeletingPathExtension] mutableCopy] autorelease];
78    [name replaceOccurrencesOfString:@"_" withString:@" " options:0 range:NSMakeRange(0, [name length])];
79    return [name capitalizedString];
80}
81
82- (void)generateCompositeIfNecessary
83{
84    if (!_compositeImage) {
85        WebView *view = [SVGTest sharedDrawView];
86        NSSize svgSize = [view bounds].size;
87
88        NSImage *image = [self image];
89        NSSize imageSize = [image size];
90
91        NSBitmapImageRep *svgImage = [view bitmapImageRepForCachingDisplayInRect:[view bounds]];
92        [view cacheDisplayInRect:[view bounds] toBitmapImageRep:svgImage];
93
94        NSSize unionSize = NSMakeSize(MAX(svgSize.width, imageSize.width), MAX(svgSize.height, imageSize.height));
95        _compositeImage = [[NSImage alloc] initWithSize:unionSize];
96
97        [_compositeImage lockFocus];
98        [svgImage drawInRect:NSMakeRect(0,0,svgSize.width,svgSize.height)];
99        [image drawInRect:NSMakeRect(0,0,imageSize.width,imageSize.height)
100                fromRect:NSMakeRect(0,0,imageSize.width,imageSize.height)
101                 operation:NSCompositeXOR fraction:1.0];
102        [_compositeImage unlockFocus];
103    }
104}
105
106- (NSImage *)compositeImage
107{
108    [self generateCompositeIfNecessary];
109    return _compositeImage;
110}
111
112
113@end
114