2 * Copyright (C) 2005, 2006 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.
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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
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19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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29 #import "WebStringTruncator.h"
31 #import "WebSystemInterface.h"
32 #import <WebCore/Font.h>
33 #import <WebCore/FontCache.h>
34 #import <WebCore/FontPlatformData.h>
35 #import <WebCore/PlatformString.h>
36 #import <WebCore/StringTruncator.h>
37 #import <wtf/StdLibExtras.h>
39 using namespace WebCore;
41 static NSFont *defaultMenuFont()
43 static NSFont *defaultMenuFont = nil;
44 if (!defaultMenuFont) {
45 defaultMenuFont = [NSFont menuFontOfSize:0];
46 CFRetain(defaultMenuFont);
48 return defaultMenuFont;
51 static Font& fontFromNSFont(NSFont *font)
53 static NSFont *currentFont;
54 DEFINE_STATIC_LOCAL(Font, currentRenderer, ());
56 if ([font isEqual:currentFont])
57 return currentRenderer;
59 CFRelease(currentFont);
61 CFRetain(currentFont);
62 FontPlatformData f(font, [font pointSize]);
63 currentRenderer = Font(f, ![[NSGraphicsContext currentContext] isDrawingToScreen]);
64 return currentRenderer;
67 @implementation WebStringTruncator
71 InitWebCoreSystemInterface();
74 + (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth
76 FontCachePurgePreventer fontCachePurgePreventer;
77 return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(defaultMenuFont()));
80 + (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font
82 FontCachePurgePreventer fontCachePurgePreventer;
83 return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(font));
86 + (NSString *)rightTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font
88 FontCachePurgePreventer fontCachePurgePreventer;
89 return StringTruncator::rightTruncate(string, maxWidth, fontFromNSFont(font));
92 + (float)widthOfString:(NSString *)string font:(NSFont *)font
94 FontCachePurgePreventer fontCachePurgePreventer;
95 return StringTruncator::width(string, fontFromNSFont(font));