Line data    Source code

       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_SLIDESHOW_SOURCE_INC_RGBCOLOR_HXX
      21             : #define INCLUDED_SLIDESHOW_SOURCE_INC_RGBCOLOR_HXX
      22             : 
      23             : #include <cppcanvas/color.hxx>
      24             : 
      25             : 
      26             : /* Definition of RGBColor class */
      27             : 
      28             : namespace slideshow
      29             : {
      30             :     namespace internal
      31             :     {
      32             :         class HSLColor;
      33             : 
      34             :         /** RGB color space class.
      35             :          */
      36             :         class RGBColor
      37             :         {
      38             :         public:
      39             :             RGBColor();
      40             :             explicit RGBColor( ::cppcanvas::Color::IntSRGBA nRGBColor );
      41             :             RGBColor( double nRed, double nGreen, double nBlue );
      42             :             explicit RGBColor( const HSLColor& rColor );
      43             : 
      44             :             /** Get the RGB red value.
      45             :              */
      46           0 :             double getRed() const {  return maRGBTriple.mnRed; }
      47             : 
      48             :             /** Get the RGB green value.
      49             :              */
      50           0 :             double getGreen() const {  return maRGBTriple.mnGreen; }
      51             : 
      52             :             /** Get the RGB blue value.
      53             :              */
      54           0 :             double getBlue() const {  return maRGBTriple.mnBlue; }
      55             : 
      56             :             /** Create an integer sRGBA color.
      57             :              */
      58             :             ::cppcanvas::Color::IntSRGBA getIntegerColor() const;
      59             : 
      60             :             struct RGBTriple
      61             :             {
      62             :                 RGBTriple();
      63             :                 RGBTriple( double nRed, double nGreen, double nBlue );
      64             : 
      65             :                 double mnRed;
      66             :                 double mnGreen;
      67             :                 double mnBlue;
      68             :             };
      69             : 
      70             :         private:
      71             :             // default copy/assignment are okay
      72             :             // RGBColor(const RGBColor&);
      73             :             // RGBColor& operator=( const RGBColor& );
      74             : 
      75             :             RGBTriple   maRGBTriple;
      76             :         };
      77             : 
      78             :         bool operator==( const RGBColor& rLHS, const RGBColor& rRHS );
      79             :         bool operator!=( const RGBColor& rLHS, const RGBColor& rRHS );
      80             :         RGBColor operator+( const RGBColor& rLHS, const RGBColor& rRHS );
      81             :         RGBColor operator*( const RGBColor& rLHS, const RGBColor& rRHS );
      82             :         RGBColor operator*( double nFactor, const RGBColor& rRHS );
      83             : 
      84             : 
      85             :         /** RGB color linear interpolator.
      86             : 
      87             :             @param t
      88             :             As usual, t must be in the [0,1] range
      89             :         */
      90             :         RGBColor interpolate( const RGBColor& rFrom, const RGBColor& rTo, double t );
      91             :     }
      92             : }
      93             : 
      94             : #endif // INCLUDED_SLIDESHOW_SOURCE_INC_RGBCOLOR_HXX
      95             : 
      96             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */