Interface à Ncurses en PHP.

Ncurses.class.php

<?php

/**
 * Class Ncurses
 *
 * Singleton pour créer des interfaces avec Ncurses.
 */
class Ncurses {

	private static $_instance;

	private $screen;
	private $windows = array();
	private $debug = array();

	/**
	 * Termine Ncurses.
	 */
	public function end() {
		foreach($this->windows as $wn => $w) {
			$this->closeWindow($wn);
		}
		$this->redraw();
		ncurses_end();
	}

	private function __clone() {}
	private function __construct() {}

	/**
	 * Retourne le singleton.
	 * @return Ncurses
	 */
	public static function getInstance()
	{
		if (!(self::$_instance instanceof self))
			self::$_instance = new self();

		return self::$_instance;
	}

	/**
	 * Ajoute du debug en bas à droite.
	 * @param string $buffer Texte à ajouter
	 */
	public static function addDebug($buffer) {
		$ncurses = Ncurses::getInstance();
		ncurses_getmaxyx($ncurses->getScreen(), $my, $mx);
		$ncurses->newWindow("Debug", 12, 90, $my - 15, $mx - 93);
		$ncurses->debug[] = $buffer;
		$ncurses->clearWindow("Debug");
		$i = 2;
		foreach(array_slice($ncurses->debug, -8, 8) as $debugline) {
			if (!empty($debugline)) ncurses_mvwaddstr($ncurses->getWindow("Debug"), $i, 3, $debugline);
			$i++;
		}
		$ncurses->redraw();
	}

	/**
	 * Retourne l'écran principal
	 * @return resource
	 */
	public function getScreen() {
		return $this->screen;
	}

	/**
	 * Initialise Ncurses
	 * @param string $title Titre de la fenêtre
	 */
	public function init($title = null) {
		ncurses_init();

		$this->screen = ncurses_newwin(0, 0, 0, 0);
		ncurses_border(0, 0, 0, 0, 0, 0, 0, 0);
		if ($title != null) ncurses_mvaddstr(0, 1, " ".$title." ");
		$this->redraw();
	}

	/**
	 * Redessine les fenêtres
	 */
	public function redraw() {
		foreach($this->windows as $window) {
			ncurses_wrefresh($window);
		}
		ncurses_refresh(0);
	}

	/**
	 * Créé une fenêtre
	 * @param string $title Titre de la fenêtre
	 * @param int $rows Lignes
	 * @param int $cols Colonnes
	 * @param int $y Position verticale
	 * @param int $x Position horizontale
	 * @return bool
	 */
	public function newWindow($title, $rows, $cols, $y, $x) {
		if (isset($this->windows[$title])) return false;
		$this->windows[$title] = ncurses_newwin($rows, $cols, $y, $x);
		ncurses_wborder($this->windows[$title], 0, 0, 0, 0, 0, 0, 0, 0);
		ncurses_mvwaddstr($this->windows[$title], 0, 1, " ".$title." ");
		$this->redraw();
		return true;
	}

	/**
	 * Vide une fenêtre (buggé ?)
	 * @param string $title Titre de la fenêtre
	 * @return bool
	 */
	public function clearWindow($title) {
		if (isset($this->windows[$title])) return false;
		ncurses_wrefresh($this->windows[$title]);
		ncurses_wclear($this->windows[$title]);
		ncurses_werase($this->windows[$title]);
		ncurses_wrefresh($this->windows[$title]);
		ncurses_wnoutrefresh($this->windows[$title]);
		return true;
	}

	/**
	 * Retourne une fenêtre
	 * @param string $title Titre de la fenêtre
	 * @return resource
	 */
	public function getWindow($title) {
		return $this->windows[$title];
	}

	/**
	 * Écrit vers une fenêtre
	 * @param string $title Titre de la fenêtre
	 * @param string $y Position verticale
	 * @param string $x Position horizontale
	 * @param int $attr Attribut Ncurses
	 * @param string $text Texte
	 * @return bool
	 */
	public function writeToWindow($title, $y, $x, $attr = NCURSES_A_NORMAL, $text) {
		if (!isset($this->windows[$title])) return false;
		ncurses_attron($attr);
		ncurses_mvwaddstr($this->windows[$title], $y, $x, $text);
		ncurses_attroff($attr);
		$this->redraw();
		return true;
	}

	/**
	 * Ferme une fenêtre
	 * @param string $title Titre de la fenêtre
	 * @return bool
	 */
	public function closeWindow($title) {
		if (!isset($this->windows[$title])) return false;
		ncurses_werase($this->windows[$title]);
		ncurses_wclear($this->windows[$title]);
		ncurses_wnoutrefresh($this->windows[$title]);
		$this->redraw();
		ncurses_delwin($this->windows[$title]);
		unset($this->windows[$title]);
		$this->redraw();
		return true;
	}
}

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