Renderer.hpp

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//  Renderer.hpp
//
//  Copyright (C) 2013-2026  Jaye Evins <evins@snaught.com>
//
//  This file is part of glbarcode++.
//
//  glbarcode++ 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 3 of the License, or
//  (at your option) any later version.
//
//  glbarcode++ 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 glbarcode++.  If not, see <http://www.gnu.org/licenses/>.
//
 
#ifndef glbarcode_Renderer_hpp
#define glbarcode_Renderer_hpp
 
 
#include <list>
 
#include "DrawingPrimitives.hpp"
 
 
extern "C" struct gbcRenderer {};
 
 
namespace glbarcode
{
 
        class DrawingPrimitive; /* Forward reference to private drawing primitive class. */
 
 
        class Renderer : public gbcRenderer
        {
        protected:
                Renderer() = default;
 
        public:
                virtual ~Renderer() = default;
 
                /*
                 * Non-copyable
                 */
                Renderer( const Renderer & ) = delete;
                void operator=( const Renderer & ) = delete;
 
                void render( double w, double h, const std::list<DrawingPrimitive*>& primitives );
 
 
        protected:
                virtual void drawBegin( double w, double h ) = 0;
 
 
                virtual void drawEnd() = 0;
 
 
                virtual void drawLine( double x, double y, double w, double h ) = 0;
 
 
                virtual void drawBox( double x, double y, double w, double h ) = 0;
 
 
                virtual void drawText( double x, double y, double size, const std::string& text, HAlign halign = H_ALIGN_CENTER ) = 0;
 
 
                virtual void drawRing( double x, double y, double r, double w ) = 0;
 
 
                virtual void drawHexagon( double x, double y, double h ) = 0;
 
        };
 
}
 
#endif // glbarcode_Renderer_hpp