1 | //
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2 | // NSImage-NJRExtensions.m
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3 | // Pester
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4 | //
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5 | // Created by Nicholas Riley on Mon Oct 28 2002.
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6 | // Copyright (c) 2002 __MyCompanyName__. All rights reserved.
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7 | //
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8 |
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9 | #import "NSImage-NJRExtensions.h"
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10 |
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11 |
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12 | @implementation NSImage (NJRExtensions)
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13 |
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14 | - (NSImage *)bestFitImageForSize:(NSSize)imageSize;
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15 | {
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16 | NSSize repSize;
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17 | NSArray *imageReps;
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18 | int i, repCount;
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19 | NSImageRep *preferredRep, *rep;
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20 | imageReps = [self representations];
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21 | repCount = [imageReps count];
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22 | preferredRep = [imageReps objectAtIndex: 0];
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23 | for (i = 1 ; i < repCount ; i++) {
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24 | rep = [imageReps objectAtIndex: i];
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25 | repSize = [rep size];
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26 | if (repSize.width == imageSize.width && repSize.height == imageSize.height) {
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27 | preferredRep = rep;
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28 | break;
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29 | }
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30 | if (repSize.width >= imageSize.width || repSize.height >= imageSize.height) {
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31 | // pick the smallest of the larger representations
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32 | if (repSize.width <= [preferredRep size].width ||
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33 | repSize.height <= [preferredRep size].height) preferredRep = rep;
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34 | } else {
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35 | // or the largest of the smaller representations
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36 | if (([preferredRep size].width > imageSize.width ||
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37 | [preferredRep size].height > imageSize.height) ||
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38 | // (assuming that the previous preferred rep was smaller, too)
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39 | // XXX fix this in HostLauncher too
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40 | (repSize.width >= [preferredRep size].width ||
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41 | repSize.height >= [preferredRep size].height)) preferredRep = rep;
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42 | }
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43 | }
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44 | // Begin workaround code for bug in OS X 10.1 (removeRepresentation: has no effect)
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45 | if (repCount > 1) {
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46 | NSImage *image = [[[NSImage alloc] initWithSize: [preferredRep size]] autorelease];
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47 | [image addRepresentation: preferredRep];
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48 | return image;
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49 | } else {
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50 | return self;
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51 | }
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52 | }
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53 |
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54 | @end
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