ColorMac.mm   [plain text]


/*
 * Copyright (C) 2003, 2004, 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
 * 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 "config.h"
#import "Color.h"

#import <GraphicsServices/GSColor.h>

#import <wtf/Assertions.h>


namespace WebCore {


CGColorRef cgColor(const Color &col)
{
    unsigned c = col.rgb();
    switch (c) {
        case 0: {
            return (CGColorRef)CFRetain(GSColorForSystemColor(kGSClearColor));
        }
        case Color::black: {
            return (CGColorRef)CFRetain(GSColorForSystemColor(kGSBlackColor));
        }
        case Color::white: {
            return (CGColorRef)CFRetain(GSColorForSystemColor(kGSWhiteColor));
        }
        default: {
            const int cacheSize = 32;
            static unsigned cachedRGBAValues[cacheSize];
            static CGColorRef cachedColors[cacheSize];
            
            for (int i = 0; i != cacheSize; ++i) {
                if (cachedRGBAValues[i] == c) {
                    return (CGColorRef)CFRetain(cachedColors[i]);
                }
            }
            
            CGColorRef color =  GSColorCreateColorWithDeviceRGBA(col.red() / 255., col.green() / 255., col.blue() / 255., col.alpha() / 255.);
            
            static int cursor;
            cachedRGBAValues[cursor] = c;
            if (cachedColors[cursor] != 0)
                CFRelease(cachedColors[cursor]);
            cachedColors[cursor] = (CGColorRef)CFRetain(color);
            if (++cursor == cacheSize) {
                cursor = 0;
            }
            
            return (CGColorRef)CFRetain(color);
        }
    }
    
    return 0;
}



void setFocusRingColorChangeFunction(void (*function)())
{
}

Color focusRingColor()
{
    return 0xFF9CABBD;
}

}