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      1 /*
      2  * Copyright (C) 2008, 2009 Google, Inc.  All rights reserved.
      3  * Copyright (C) 2009 Apple Inc.  All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      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  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
     18  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     19  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     20  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     21  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
     22  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     24  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include "config.h"
     28 #include "RGBColor.h"
     29 
     30 namespace WebCore {
     31 
     32 PassRefPtr<RGBColor> RGBColor::create(unsigned rgbColor)
     33 {
     34     return adoptRef(new RGBColor(rgbColor));
     35 }
     36 
     37 PassRefPtr<CSSPrimitiveValue> RGBColor::red()
     38 {
     39     unsigned value = (m_rgbColor >> 16) & 0xFF;
     40     return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
     41 }
     42 
     43 PassRefPtr<CSSPrimitiveValue> RGBColor::green()
     44 {
     45     unsigned value = (m_rgbColor >> 8) & 0xFF;
     46     return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
     47 }
     48 
     49 PassRefPtr<CSSPrimitiveValue> RGBColor::blue()
     50 {
     51     unsigned value = m_rgbColor & 0xFF;
     52     return CSSPrimitiveValue::create(value, CSSPrimitiveValue::CSS_NUMBER);
     53 }
     54 
     55 PassRefPtr<CSSPrimitiveValue> RGBColor::alpha()
     56 {
     57     float value = static_cast<float>((m_rgbColor >> 24) & 0xFF) / 0xFF;
     58     return WebCore::CSSPrimitiveValue::create(value, WebCore::CSSPrimitiveValue::CSS_NUMBER);
     59 }
     60 
     61 } // namespace WebCore
     62 
     63