<?php
/**
* PHP ncurses library
*
* Provides a clean, object-oriented interface to the PHP ncurses functions to ease
* the creation of elaborate, functional CLI applications.
*
* @author Correl J. Roush <correl@gmail.com>
* @copyright Copyright (c) 2008, Correl J. Roush
* @version 0.1
*
* @package Nc
*/

require_once('signals.php');
include_once('ncurses.window.php');
include_once('ncurses.button.php');
include_once('ncurses.progressbar.php');
include_once('ncurses.textinput.php');
include_once('ncurses.tableview.php');

/**
* PHP ncurses application
*
* @package Nc
*/
abstract class NcApp extends Signaler {
	protected $nc_screen;
	protected $screen;
	protected $log = array();
	protected $done = false;
	
	/**
	* Constructor
	*
	* Initializes the ncurses environment, as well as the fullscreen window {@link $screen}
	*
	* @param boolean $echo Echo keyboard input to the screen
	* @param boolean $cursor Display the cursor on the screen
	*/
	public function __construct( $echo = false, $cursor = false ) {
		ncurses_init();
		$echo ? ncurses_echo() : ncurses_noecho();
		ncurses_curs_set( (bool)$cursor );
		$this->nc_screen = ncurses_newwin( 0, 0, 0, 0 );
		ncurses_refresh();
		$this->log($this, 'nCurses Initialized');
		$this->screen = new NcWindow($this, 0, 0, 0, 0);
		$this->init();
	}
	/**
	* Destructor
	*
	* Clears the screen and ends the ncurses session
	*/
	public function __destruct() {
		ncurses_clear();
		ncurses_refresh();
		ncurses_end();
	}
	public function log(&$object, $message) {
		if( DEBUG ) {
			$this->log[] = array(
				'class' => get_class($object),
				'message' => $message
			);
			$this->emit('log', $this->log);
		}
	}
	public function exec() {
		if( $this->screen instanceof NcWindow ) {
			while(!$this->done) {
				$key = ncurses_getch();
				$this->screen->on_key_press($key);
			}
		}
	}
	public function quit() {
		$this->done = true;
	}
	/**
	* This is a placeholder function for application code
	*/
	abstract function init();
}
?>