/*

 * Copyright (C) 2005, 2006 Apple Computer, Inc.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 * 1.  Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer. 

 * 2.  Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in the

 *     documentation and/or other materials provided with the distribution. 

 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of

 *     its contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission. 

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY

 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY

 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#import "WebStringTruncator.h"

#import "WebSystemInterface.h"

#import <WebCore/Font.h>

#import <WebCore/FontPlatformData.h>

#import <WebCore/PlatformString.h>

#import <WebCore/StringTruncator.h>

#import <wtf/StdLibExtras.h>

using namespace WebCore;

static NSFont *defaultMenuFont()

{

    static NSFont *defaultMenuFont = nil;

    if (!defaultMenuFont) {

        defaultMenuFont = [NSFont menuFontOfSize:0];

        CFRetain(defaultMenuFont);

    }

    return defaultMenuFont;

}

static Font& fontFromNSFont(NSFont *font)

{

    static NSFont *currentFont;

    DEFINE_STATIC_LOCAL(Font, currentRenderer, ());

    if ([font isEqual:currentFont])

        return currentRenderer;

    if (currentFont)

        CFRelease(currentFont);

    currentFont = font;

    CFRetain(currentFont);

    FontPlatformData f(font);

    currentRenderer = Font(f, ![[NSGraphicsContext currentContext] isDrawingToScreen]);

    return currentRenderer;

}

@implementation WebStringTruncator

+ (void)initialize

{

    InitWebCoreSystemInterface();

}

+ (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth

{

    return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(defaultMenuFont()));

}

+ (NSString *)centerTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font

{

    return StringTruncator::centerTruncate(string, maxWidth, fontFromNSFont(font));

}

+ (NSString *)rightTruncateString:(NSString *)string toWidth:(float)maxWidth withFont:(NSFont *)font

{

    return StringTruncator::rightTruncate(string, maxWidth, fontFromNSFont(font));

}

+ (float)widthOfString:(NSString *)string font:(NSFont *)font

{

    return StringTruncator::width(string, fontFromNSFont(font));

}

@end