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       1             : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2             : /*
       3             :  * This file is part of the LibreOffice project.
       4             :  *
       5             :  * This Source Code Form is subject to the terms of the Mozilla Public
       6             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8             :  *
       9             :  * This file incorporates work covered by the following license notice:
      10             :  *
      11             :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12             :  *   contributor license agreements. See the NOTICE file distributed
      13             :  *   with this work for additional information regarding copyright
      14             :  *   ownership. The ASF licenses this file to you under the Apache
      15             :  *   License, Version 2.0 (the "License"); you may not use this file
      16             :  *   except in compliance with the License. You may obtain a copy of
      17             :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18             :  */
      19             : 
      20             : #ifndef INCLUDED_CPPCANVAS_COLOR_HXX
      21             : #define INCLUDED_CPPCANVAS_COLOR_HXX
      22             : 
      23             : #include <com/sun/star/uno/Sequence.hxx>
      24             : 
      25             : #include <boost/shared_ptr.hpp>
      26             : 
      27             : 
      28             : /* Definition of Color class */
      29             : 
      30             : namespace cppcanvas
      31             : {
      32           2 :     class Color
      33             :     {
      34             :     public:
      35             :         /** Color in the sRGB color space, plus alpha channel
      36             : 
      37             :             The four bytes of the sal_uInt32 are allocated as follows
      38             :             to the color channels and alpha: 0xRRGGBBAA.
      39             :          */
      40             :         typedef sal_uInt32 IntSRGBA;
      41             : 
      42           2 :         virtual ~Color() {}
      43             : 
      44             :         virtual IntSRGBA                                    getIntSRGBA( ::com::sun::star::uno::Sequence< double >& rDeviceColor ) const = 0;
      45             :         virtual ::com::sun::star::uno::Sequence< double >   getDeviceColor( IntSRGBA aSRGBA ) const = 0;
      46             :     };
      47             : 
      48             :     typedef ::boost::shared_ptr< ::cppcanvas::Color > ColorSharedPtr;
      49             : 
      50           2 :     inline sal_uInt8 getRed( Color::IntSRGBA nCol )
      51             :     {
      52           2 :         return static_cast<sal_uInt8>( (nCol&0xFF000000U) >> 24U );
      53             :     }
      54             : 
      55           2 :     inline sal_uInt8 getGreen( Color::IntSRGBA nCol )
      56             :     {
      57           2 :         return static_cast<sal_uInt8>( (nCol&0x00FF0000U) >> 16U );
      58             :     }
      59             : 
      60           2 :     inline sal_uInt8 getBlue( Color::IntSRGBA nCol )
      61             :     {
      62           2 :         return static_cast<sal_uInt8>( (nCol&0x0000FF00U) >> 8U );
      63             :     }
      64             : 
      65           2 :     inline sal_uInt8 getAlpha( Color::IntSRGBA nCol )
      66             :     {
      67           2 :         return static_cast<sal_uInt8>( nCol&0x000000FFU );
      68             :     }
      69             : 
      70           0 :     inline Color::IntSRGBA makeColor( sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue, sal_uInt8 nAlpha )
      71             :     {
      72           0 :         return (nRed << 24U)|(nGreen << 16U)|(nBlue << 8U)|(nAlpha);
      73             :     }
      74             : 
      75             :     inline sal_Int32 unMakeColor( sal_uInt8 nAlpha, sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue)
      76             :     {
      77             :         return (nAlpha << 24U)|(nRed << 16U)|(nGreen << 8U)|(nBlue);
      78             :     }
      79             : 
      80           0 :     inline sal_Int32 makeColorARGB( sal_uInt8 nAlpha, sal_uInt8 nRed, sal_uInt8 nGreen, sal_uInt8 nBlue)
      81             :     {
      82           0 :         return (nAlpha << 24U)|(nRed << 16U)|(nGreen << 8U)|(nBlue);
      83             :     }
      84             : 
      85             : }
      86             : 
      87             : #endif // INCLUDED_CPPCANVAS_COLOR_HXX
      88             : 
      89             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */