draw_map.H

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// Copyright (C) 2007 University of Louisiana at Lafayette
// Authors: Daro Eghagha

#ifndef CAJUN_DRAW_MAP_H
#define CAJUN_DRAW_MAP_H

#include <list>

#include "conf.H"
#include "map_view.H"

#include "component_interface.H"

#ifdef VR_JUGGLER
#include <vrj/Draw/OGL/GlContextData.h>
#endif

namespace cajun
{
#define MAX_TEXTURES 50
class draw_map_t: public component_interface_t
{
public:
        draw_map_t (double cbviz_origin[3], conf_t &conf,
                    const char *geotiff_dir_, world_state_t *ws_,
                    rndf_t const *rndf_);
        virtual  ~draw_map_t();
        void dynamic_data ();
        void update_data (double bot_pos_[3]);
        void display(double bot_pos[3]);
        void toggle_display ();
        void move_map_x (int dir);
        void move_map_y (int dir);
private:
        struct tfw_data_t // hold data from tfw file format
        {
                tfw_data_t () : is_loaded (false) {}
                std::string filename;
                double res_x;//x resolution
                double res_y;//negative of y resolution
                double utm_x, utm_y;// top left utm coord
                bool is_loaded;
        };

        bool load_map_buffer (double bot_pos[3]);
        bool load_map_texture ();
        std::list<tfw_data_t>::iterator find_tile (double bot_pos[3]);
        void find_geotiffs (const char *geotiff_dir_);
        void index_geotiff (char *filename);

        std::list <tfw_data_t> m_tfw_data;

        struct map_info_t
        {
#ifdef VR_JUGGLER
                vrj::GlContextData <GLuint> m_texture;
#else
                GLuint m_texture;
#endif
                bool m_loaded;
                double m_top_left_x;
                double m_top_left_y;
                double m_bottom_right_x;
                double m_bottom_right_y;
                double m_offset_y;
                double m_offset_x;
        };

        map_info_t m_map_info[MAX_TEXTURES];

        map_view_t m_map;

        int m_num_tiles;
        double m_cbviz_origin[3];
        double m_off_x;
        double m_off_y;
};
};
#endif

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