1/* 2 * Copyright (C) 2005, 2006 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 "WebStringTruncator.h" 30 31#import "WebSystemInterface.h" 32#import <WebCore/Font.h> 33#import <WebCore/FontPlatformData.h> 34#import <WebCore/PlatformString.h> 35#import <WebCore/StringTruncator.h> 36#import <wtf/StdLibExtras.h> 37 38using namespace WebCore; 39 40static NSFont *defaultMenuFont() 41{ 42 static NSFont *defaultMenuFont = nil; 43 if (!defaultMenuFont) { 44 defaultMenuFont = [NSFont menuFontOfSize:0]; 45 CFRetain(defaultMenuFont); 46 } 47 return defaultMenuFont; 48} 49 50static Font& fontFromNSFont(NSFont *font) 51{ 52 static NSFont *currentFont; 53 DEFINE_STATIC_LOCAL(Font, currentRenderer, ()); 54 55 if ([font isEqual:currentFont]) 56 return currentRenderer; 57 if (currentFont) 58 CFRelease(currentFont); 59 currentFont = font; 60 CFRetain(currentFont); 61 FontPlatformData f(font, [font pointSize]); 62 currentRenderer = Font(f, ![[NSGraphicsContext currentContext] isDrawingToScreen]); 63 return currentRenderer; 64} 65 66@implementation WebStringTruncator 67 68+ (void)initialize 69{ 70 InitWebCoreSystemInterface(); 71} 72 73+ (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth 74{ 75 return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(defaultMenuFont())); 76} 77 78+ (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font 79{ 80 return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(font)); 81} 82 83+ (NSString *)rightTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font 84{ 85 return StringTruncator::rightTruncate(string, maxWidth, fontFromNSFont(font)); 86} 87 88+ (float)widthOfString:(NSString *)string font:(NSFont *)font 89{ 90 return StringTruncator::width(string, fontFromNSFont(font)); 91} 92 93@end 94