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//

//  MeshEditor.h

//  GEL

//

//  Created by J. Andreas Bærentzen on 09/10/13.

//

//

#ifndef __GEL__MeshEditor__

#define __GEL__MeshEditor__

#include <string>

#include "../GLGraphics/Console.h"

#include "../GLGraphics/VisObj.h"

#include "../GLGraphics/GLViewController.h"

namespace GLGraphics {

    class MeshEditor

    {

        Console theConsole;

        bool console_visible = false;

        static const int NO_MESHES = 9;

        std::array<VisObj,NO_MESHES> vo;

        Console::variable<int> active;

        Console::variable<std::string> display_render_mode;

        Console::variable<int> display_smooth_shading;

        Console::variable<float> display_gamma;

        VisObj& active_visobj() { return vo[active]; }

        const VisObj& active_visobj() const { return vo[active]; }

        GLViewController& active_view_control() {

            return active_visobj().view_control();

        }

    public:

        MeshEditor():active(0), display_render_mode("normal"), display_smooth_shading(true),

        display_gamma(2.2) {}

        /// Initialize the mesh editor. Do this only when OpenGL state is available.

        void init();

        // GLViewController stuff

        void reshape(int w, int h);

        void grab_ball(TrackBallAction action, const CGLA::Vec2i& pos);

        void roll_ball(const CGLA::Vec2i& pos);

        void release_ball();

        bool try_spinning_ball();

        /// Align means that we sync view controllers.

        void align(int src, int dst)

        {

            vo[dst].view_control() =

            vo[src].view_control();

        }

        /// Make sure the object fits in the window.

        void refit() {

            active_visobj().refit();

        }

        /// Returns the name of the file whence the active mesh was loaded.

        const std::string& file_name() const {return active_visobj().file_name();}

        // Get mesh and mesh state.

        void save_active_mesh() {active_visobj().save_old();}

        void restore_active_mesh() {active_visobj().restore_old();}

        // Display functions ------------

        /// Notify the visualization object that we need to regenerate the display list.

        void post_create_display_list() {active_visobj().post_create_display_list();}

        /// Render the active mesh.

        void display(int scale = 1);

        // Console functions --------------

        void register_console_function(const std::string& name,

                                       const std::function<void(MeshEditor*, const std::vector<std::string>&)>& con_fun,

                                       const std::string& help_txt);

        void printf(const char* format, ...);

        void keyparse(unsigned short c);

        void key_up();

        void key_down();

        void key_left();

        void key_right();

        void key_home();

        void key_end();

        /// Returns a reference to active mesh.

        HMesh::Manifold& active_mesh() { return active_visobj().mesh(); }

       /// Add a file to the next empty slot.

        bool add_file(const std::string& str);

        /// Load the mesh given as argument to the current slot.

        bool reload_active_from_file(const std::string& str);

        /// Load the mesh but without clearing, effectively combining it with existing mesh.

        bool add_to_active_from_file(const std::string& str);

        void harmonics_analyze_mesh() {active_visobj().harmonics_analyze();}

    };

}

#endif /* defined(__GEL__MeshEditor__) */