/*
Danger from the Deep - Open source submarine simulation
Copyright (C) 2003-2006  Thorsten Jordan, Luis Barrancos and others.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

// user display: submarine's periscope
// subsim (C)+(W) Thorsten Jordan. SEE LICENSE

#ifndef SUB_PERISCOPE_DISPLAY_H
#define SUB_PERISCOPE_DISPLAY_H

#include "freeview_display.h"
#include "image.h"
#include "shader.h"
#include <vector>

class sub_periscope_display : public freeview_display
{
	void pre_display(class game& gm) const;
	projection_data get_projection_data(class game& gm) const;
	void set_modelview_matrix(class game& gm, const vector3& viewpos) const;
	void post_display(class game& gm) const;

	std::auto_ptr<image> background;
	texture::ptr compassbar_tex;
	texture::ptr clock_hours_pointer;
	texture::ptr clock_minutes_pointer;
	
	bool zoomed;	// use 1,5x (false) or 6x zoom (true)

	bool use_shaders;
	bool use_hqsfx;
	texture::ptr viewtex;
	texture::ptr blurtex;
	std::auto_ptr<glsl_shader_setup> glsl_blurview;

	vector3 get_viewpos(class game& gm) const;

public:
	sub_periscope_display(class user_interface& ui_);
	virtual ~sub_periscope_display();

	//overload for zoom key handling ('y') and TDC input
	virtual void process_input(class game& gm, const SDL_Event& event);
	virtual void display(class game& gm) const;

	virtual unsigned get_popup_allow_mask() const;

	void enter(bool is_day);
	void leave();
};

#endif