+++ /dev/null
-/**
- * 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 queue list to append new events to
- * @param timeout maximum amount of time (in millis) to wait for an
- * event. 0 means to return immediately, i.e. perform a poll.
- */
- @Override
- public void getEvents(List<TInputEvent> queue, int timeout) {
- if (timeout > 0) {
- // Try to sleep, let the terminal's input thread wake me up if
- // something came in.
- synchronized (terminal) {
- try {
- terminal.wait(timeout);
- if (terminal.hasEvents()) {
- // System.err.println("getEvents()");
- terminal.getEvents(queue);
- } else {
- // If I got here, then I timed out. Call
- // terminal.getIdleEvents() to pick up stragglers
- // like bare resize.
- // System.err.println("getIdleEvents()");
- terminal.getIdleEvents(queue);
- }
- } catch (InterruptedException e) {
- // Spurious interrupt, pretend it was like a timeout.
- // System.err.println("[interrupt] getEvents()");
- terminal.getIdleEvents(queue);
- }
- }
- } else {
- // Asking for a poll, go get it.
- System.err.println("[polled] getEvents()");
- terminal.getEvents(queue);
- }
- }
-
- /**
- * Subclasses must provide an implementation that closes sockets,
- * restores console, etc.
- */
- @Override
- public void shutdown() {
- terminal.shutdown();
- }
-
-}