1/*
2 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
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.
16 *
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
22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#import <WebKit/WebNSImageExtras.h>
30
31#import <WebKit/WebKitLogging.h>
32
33@implementation NSImage (WebExtras)
34
35- (void)_web_scaleToMaxSize:(NSSize)size
36{
37    float heightResizeDelta = 0.0f, widthResizeDelta = 0.0f, resizeDelta = 0.0f;
38    NSSize originalSize = [self size];
39
40    if(originalSize.width > size.width){
41        widthResizeDelta = size.width / originalSize.width;
42        resizeDelta = widthResizeDelta;
43    }
44
45    if(originalSize.height > size.height){
46        heightResizeDelta = size.height / originalSize.height;
47        if((resizeDelta == 0.0) || (resizeDelta > heightResizeDelta)){
48            resizeDelta = heightResizeDelta;
49        }
50    }
51
52    if(resizeDelta > 0.0){
53        NSSize newSize = NSMakeSize((originalSize.width * resizeDelta), (originalSize.height * resizeDelta));
54        [self setScalesWhenResized:YES];
55        [self setSize:newSize];
56    }
57}
58
59- (void)_web_dissolveToFraction:(float)delta
60{
61    NSImage *dissolvedImage = [[NSImage alloc] initWithSize:[self size]];
62
63    NSPoint point = [self isFlipped] ? NSMakePoint(0, [self size].height) : NSZeroPoint;
64
65    // In this case the dragging image is always correct.
66    [dissolvedImage setFlipped:[self isFlipped]];
67
68    [dissolvedImage lockFocus];
69    [self dissolveToPoint:point fraction: delta];
70    [dissolvedImage unlockFocus];
71
72    [self lockFocus];
73    [dissolvedImage compositeToPoint:point operation:NSCompositeCopy];
74    [self unlockFocus];
75
76    [dissolvedImage release];
77}
78
79- (void)_web_saveAndOpen
80{
81    char path[] = "/tmp/XXXXXX.tiff";
82    int fd = mkstemps(path, 5);
83    if (fd != -1) {
84        NSData *data = [self TIFFRepresentation];
85        write(fd, [data bytes], [data length]);
86        close(fd);
87        [[NSWorkspace sharedWorkspace] openFile:[NSString stringWithUTF8String:path]];
88    }
89}
90
91@end
92