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 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 27#import "ScalingImageView.h" 28 29@implementation ScalingImageView 30 31/* 32 This class offers two behaviors different from the standard NSImageView 33 (and which were not available w/o subclassing) 34 1. Scale an image proportionally up to fit a larger view (NSImageView refuses) 35 2. Draw a background color w/o needing to show a bezel. 36*/ 37 38- (void)drawRect:(NSRect)dirtyRect 39{ 40 [[NSColor whiteColor] set]; 41 NSRectFill(dirtyRect); 42 43 NSSize imageSize = [[self image] size]; 44 float scale = 1.0f; 45 if ([self imageScaling] == NSScaleProportionally && imageSize.width && imageSize.height) { 46 float widthScale = [self bounds].size.width / imageSize.width; 47 float heightScale = [self bounds].size.height / imageSize.height; 48 scale = MIN(widthScale, heightScale); 49 } 50 51 float scaledHeight = imageSize.height * scale; 52 NSRect destRect = NSMakeRect(0,[self bounds].size.height - scaledHeight,imageSize.width * scale, scaledHeight); 53 [[self image] drawInRect:destRect 54 fromRect:NSMakeRect(0,0,imageSize.width, imageSize.height) operation:NSCompositeSourceOver fraction:1.0]; 55} 56 57@end 58