2 * Copyright (C) 2005 Apple Computer, Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
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 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
14 * its contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #import <WebKit/WebNSImageExtras.h>
31 #import <WebKit/WebKitLogging.h>
33 @implementation NSImage (WebExtras)
35 - (void)_web_scaleToMaxSize:(NSSize)size
37 float heightResizeDelta = 0.0f, widthResizeDelta = 0.0f, resizeDelta = 0.0f;
38 NSSize originalSize = [self size];
40 if(originalSize.width > size.width){
41 widthResizeDelta = size.width / originalSize.width;
42 resizeDelta = widthResizeDelta;
45 if(originalSize.height > size.height){
46 heightResizeDelta = size.height / originalSize.height;
47 if((resizeDelta == 0.0) || (resizeDelta > heightResizeDelta)){
48 resizeDelta = heightResizeDelta;
52 if(resizeDelta > 0.0){
53 NSSize newSize = NSMakeSize((originalSize.width * resizeDelta), (originalSize.height * resizeDelta));
54 [self setScalesWhenResized:YES];
55 [self setSize:newSize];
59 - (void)_web_dissolveToFraction:(float)delta
61 NSImage *dissolvedImage = [[NSImage alloc] initWithSize:[self size]];
63 NSPoint point = [self isFlipped] ? NSMakePoint(0, [self size].height) : NSZeroPoint;
65 // In this case the dragging image is always correct.
66 [dissolvedImage setFlipped:[self isFlipped]];
68 [dissolvedImage lockFocus];
69 [self dissolveToPoint:point fraction: delta];
70 [dissolvedImage unlockFocus];
73 [dissolvedImage compositeToPoint:point operation:NSCompositeCopy];
76 [dissolvedImage release];
79 - (void)_web_saveAndOpen
81 char path[] = "/tmp/XXXXXX.tiff";
82 int fd = mkstemps(path, 5);
84 NSData *data = [self TIFFRepresentation];
85 write(fd, [data bytes], [data length]);
87 [[NSWorkspace sharedWorkspace] openFile:[NSString stringWithUTF8String:path]];