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 

    39 static 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