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/* --*-c++-*-- */
/* osgEarth - Dynamic map generation toolkit for OpenSceneGraph
 * Copyright 2008-2010 Pelican Mapping
 * http://osgearth.org
 *
 * osgEarth is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 */
#ifndef OSGEARTHSYMBOLOGY_COLOR_H
#define OSGEARTHSYMBOLOGY_COLOR_H 1

#include <osgEarthSymbology/Common>
#include <osg/Vec4f>
#include <string>

namespace osgEarth { namespace Symbology
{
    struct OSGEARTHSYMBOLOGY_EXPORT Color : public osg::Vec4f
    {
        enum Format {
            RGBA,
            ABGR
        };

        Color() : osg::Vec4f(1,1,1,1) { }

        Color( const Color& rhs ) : osg::Vec4f(rhs) { }

        Color( const osg::Vec4f& rgba ) : osg::Vec4f(rgba) { }

        Color( const Color& rhs, float a );

        Color( float r, float g, float b, float a = 1.0f )
            : osg::Vec4f(r, g, b, a) { }

        Color( unsigned rgba );

        Color( const std::string& html, Format format =RGBA );

        std::string toHTML( Format format =RGBA ) const;

        Color brightness( float factor ) const;

        // built in colors
        // http://en.wikipedia.org/wiki/Web_colors#HTML_color_names

        static Color White;
        static Color Silver;
        static Color Gray;
        static Color Black;
        static Color Red;
        static Color Maroon;
        static Color Yellow;
        static Color Olive;
        static Color Lime;
        static Color Green;
        static Color Aqua;
        static Color Teal;
        static Color Blue;
        static Color Navy;
        static Color Fuchsia;
        static Color Purple;
        static Color Orange;
        static Color Cyan;

        static Color DarkGray;
    };

} } // namespace osgEarth::Symbology

#endif // OSGEARTHSYMBOLOGY_COLOR_H