/*
 * This file is part of the Simutrans project under the Artistic License.
 * (see LICENSE.txt)
 */

#ifndef GUI_WELT_H
#define GUI_WELT_H


#include "gui_frame.h"
#include "components/gui_button.h"
#include "components/gui_label.h"
#include "components/action_listener.h"
#include "components/gui_textinput.h"
#include "components/gui_numberinput.h"
#include "components/gui_map_preview.h"

#include "../tpl/array2d_tpl.h"

class settings_t;

/**
 * The dialog for new world generation
 */
class welt_gui_t  :
	public  gui_frame_t,
	private action_listener_t
{
	settings_t *sets;

	/// Mini Map-Preview
	array2d_tpl<PIXVAL> map;
	scr_size            map_size;

	bool load_heightfield;
	bool loaded_heightfield;

	double city_density;
	double industry_density;
	double attraction_density;
	double river_density;

	gui_map_preview_t
		map_preview;

	gui_numberinput_t
		inp_map_number,
		inp_x_size, inp_y_size;

	button_t
		random_map,
		load_map;

	gui_numberinput_t
		inp_number_of_towns,
		inp_town_size,
		inp_intercity_road_len,
		inp_other_industries,
		inp_tourist_attractions,
		inp_intro_date;

	gui_label_buf_t
		size_label;
	button_t
		use_intro_dates,
		use_beginner_mode,
		open_climate_gui,
		open_setting_gui,
		start_game,
		return_menu;

	gui_numberinput_t
		beginner_price_factor;

	/**
	 * Calculates preview from height map
	 * @param filename name of heightfield file
	 */
	bool update_from_heightfield(const char *filename);

	void resize_preview();

	void update_densities();


public:
	welt_gui_t();

public:
	/**
	 * Berechnet Preview-Karte neu. Inititialisiert RNG neu!
	 * public, because also the climate dialog need it
	 */
	void update_preview(bool load_heightfield = false);
	void clear_loaded_heightfield() { loaded_heightfield =0; }
	bool get_loaded_heightfield() const { return loaded_heightfield; }

	/**
	 * Set the window associated helptext
	 * @return the filename for the helptext, or NULL
	 */
	const char * get_help_filename() const OVERRIDE {return "new_world.txt";}

	settings_t* get_sets() const { return sets; }

	// does not work during new world dialog
	bool has_sticky() const OVERRIDE { return false; }

	/**
	 * Draw new component. The values to be passed refer to the window
	 * i.e. It's the screen coordinates of the window where the
	 * component is displayed.
	 */
	void draw(scr_coord pos, scr_size size) OVERRIDE;

	bool action_triggered(gui_action_creator_t*, value_t) OVERRIDE;

	static void update_memory(gui_label_buf_t *label, const settings_t* sets);
};

#endif
