border.hpp

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// Copyright Tom Brinkman 2008. Distributed under the Boost
// Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

#ifndef _border_hpp_
#define _border_hpp_

#include <boost/gil/gil_all.hpp>

namespace layer
{

template <typename view_t>
struct border
{
        typedef typename view_t::value_type color_t;
        color_t clr;
        
        border(color_t clr) : clr(clr) {}

        void operator()(view_t& view)
        {
                using namespace boost::gil;             
                
                for (int x = 0; x < view.width(); ++x)
                {
                        view(x,0) = clr;
                        view(x,view.height()-1) = clr;
                }

                for (int y = 0; y < view.height(); ++y)
                {
                        view(0,y) = clr;
                        view(view.width()-1,y) = clr;
                }
        }
};      

template <typename view_t>
struct raised_border
{
        typedef typename view_t::value_type color_t;
        color_t dark,light;
        
        raised_border(color_t light, color_t dark) : dark(dark), light(light) {}

        void operator()(view_t& view)
        {
                using namespace boost::gil;             
                
                for (int x = 0; x < view.width(); ++x)
                        view(x,0) = light;

                for (int y = 0; y < view.height(); ++y)
                        view(0,y) = light;      

                for (int y = 1; y < view.height(); ++y)
                        view(view.width()-1,y) = dark;  

                for (int x = 0; x < view.width(); ++x)
                        view(x,view.height()-1) = dark; 
        }
};      

}

#endif