+/**
+ * Jexer - Java Text User Interface
+ *
+ * Version: $Id$
+ *
+ * Author: Kevin Lamonte, <a href="mailto:kevin.lamonte@gmail.com">kevin.lamonte@gmail.com</a>
+ *
+ * License: LGPLv3 or later
+ *
+ * Copyright: This module is licensed under the GNU Lesser General
+ * Public License Version 3. Please see the file "COPYING" in this
+ * directory for more information about the GNU Lesser General Public
+ * License Version 3.
+ *
+ * Copyright (C) 2015 Kevin Lamonte
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 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 Lesser General Public
+ * License along with this program; if not, see
+ * http://www.gnu.org/licenses/, or write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+package jexer.backend;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.UnsupportedEncodingException;
+import java.util.List;
+
+import jexer.event.TInputEvent;
+import jexer.io.ECMA48Screen;
+import jexer.io.ECMA48Terminal;
+
+/**
+ * This class uses an xterm/ANSI X3.64/ECMA-48 type terminal to provide a
+ * screen, keyboard, and mouse to TApplication.
+ */
+public class ECMA48Backend extends Backend {
+
+ /**
+ * Input events are processed by this Terminal.
+ */
+ private ECMA48Terminal terminal;
+
+ /**
+ * Public constructor.
+ *
+ * @param input an InputStream connected to the remote user, or null for
+ * System.in. If System.in is used, then on non-Windows systems it will
+ * be put in raw mode; shutdown() will (blindly!) put System.in in cooked
+ * mode. input is always converted to a Reader with UTF-8 encoding.
+ * @param output an OutputStream connected to the remote user, or null
+ * for System.out. output is always converted to a Writer with UTF-8
+ * encoding.
+ */
+ public ECMA48Backend(InputStream input, OutputStream output) throws UnsupportedEncodingException {
+
+ // Create a terminal and explicitly set stdin into raw mode
+ terminal = new ECMA48Terminal(input, output);
+
+ // Create a screen
+ screen = new ECMA48Screen(terminal);
+
+ // Clear the screen
+ terminal.getOutput().write(terminal.clearAll());
+ terminal.flush();
+ }
+
+ /**
+ * Sync the logical screen to the physical device.
+ */
+ @Override
+ public void flushScreen() {
+ screen.flushPhysical();
+ }
+
+ /**
+ * Get keyboard, mouse, and screen resize events.
+ *
+ * @param timeout maximum amount of time (in millis) to wait for an
+ * event. 0 means to return immediately, i.e. perform a poll.
+ * @return events received, or an empty list if the timeout was reached
+ * first
+ */
+ @Override
+ public List<TInputEvent> getEvents(int timeout) {
+ return terminal.getEvents();
+ }
+
+ /**
+ * Subclasses must provide an implementation that closes sockets,
+ * restores console, etc.
+ */
+ @Override
+ public void shutdown() {
+ terminal.shutdown();
+ }
+
+}