#ifndef INCLUDED_SG_CHANGE
#define INCLUDED_SG_CHANGE

#include <SDL.h>

#include "viewer_types.h"
#include "TaskManager.h"
#include "KeyStat.h"
#include "MainLoop.h"
#include "Application.h"
#include "SceneGraphRoot.h"

class SceneGraphRoot;

class Application;

class SgChange : public MainLoop {

public:

    SgChange(int bpp, int width, int height, int spenum);

    virtual ~SgChange() {}

    Application *app;

    TaskManager *manager;
    key_stat *keyPtr;
    HTaskPtr draw_dummy;

    SceneGraphRoot *sgroot_A;
    SceneGraphRoot *sgroot_B;

    /* screen info */
    int width;
    int height;
    int bpp;

    int spe_num;

    int rgb_size[3];
    Uint32 video_flags;
    Uint32 *pixels;

    void init();

    int get_ticks();
    bool quit_check();
    void quit();

    virtual void swap_buffers();
    virtual void clean_pixels() {}

    virtual void run_init(TaskManager *manager, Application *app);
    virtual void run_loop(HTaskPtr task_next);
    virtual void run_finish();
    virtual void exchange_sgroot();
    void mainLoop();

    void createFromXMLfile(const char *file)
    {
	sgroot_A->createFromXMLfile(manager, file);
    }

    SceneGraph * createSceneGraph(int id)
    {
	return sgroot_A->createSceneGraph(id);
    }

    SceneGraph * createSceneGraph(const char *id)
    {
	return sgroot_A->createSceneGraph(id);
    }

    int getSgid(const char *id)
    {
	return sgroot_A->getSgid(id);
    }

    SceneGraph * createSceneGraph()
    {
	return sgroot_A->createSceneGraph();
    }

    void setSceneData(SceneGraph *g)
    {
	sgroot_A->setSceneData(g);
    }

    int getLast()
    {
	return sgroot_A->getLast();
    }




private:
    HTaskPtr initLoop();
};

#define default_sdl_flag SDL_INIT_TIMER | SDL_INIT_JOYSTICK


#endif