*
* The MIT License (MIT)
*
- * Copyright (C) 2016 Kevin Lamonte
+ * Copyright (C) 2019 Kevin Lamonte
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
import java.io.InputStream;
import java.io.OutputStream;
+import java.io.PrintWriter;
+import java.io.Reader;
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 final class ECMA48Backend extends Backend {
+public class ECMA48Backend extends GenericBackend {
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
- * Input events are processed by this Terminal.
+ * Public constructor will use System.in and System.out and UTF-8
+ * encoding. On non-Windows systems System.in will be put in raw mode;
+ * shutdown() will (blindly!) put System.in in cooked mode.
+ *
+ * @throws UnsupportedEncodingException if an exception is thrown when
+ * creating the InputStreamReader
*/
- private ECMA48Terminal terminal;
+ public ECMA48Backend() throws UnsupportedEncodingException {
+ this(null, null, null);
+ }
/**
* Public constructor.
* @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.
+ * @param windowWidth the number of text columns to start with
+ * @param windowHeight the number of text rows to start with
+ * @param fontSize the size in points. ECMA48 cannot set it, but it is
+ * here to match the Swing API.
* @throws UnsupportedEncodingException if an exception is thrown when
* creating the InputStreamReader
*/
public ECMA48Backend(final Object listener, final InputStream input,
- final OutputStream output) throws UnsupportedEncodingException {
+ final OutputStream output, final int windowWidth,
+ final int windowHeight, final int fontSize)
+ throws UnsupportedEncodingException {
// Create a terminal and explicitly set stdin into raw mode
- terminal = new ECMA48Terminal(listener, input, output);
+ terminal = new ECMA48Terminal(listener, input, output, windowWidth,
+ windowHeight);
// Keep the terminal's sessionInfo so that TApplication can see it
- sessionInfo = terminal.getSessionInfo();
-
- // Create a screen
- screen = new ECMA48Screen(terminal);
+ sessionInfo = ((ECMA48Terminal) terminal).getSessionInfo();
- // Clear the screen
- terminal.getOutput().write(terminal.clearAll());
- terminal.flush();
+ // ECMA48Terminal is the screen too
+ screen = (ECMA48Terminal) terminal;
}
/**
- * Sync the logical screen to the physical device.
+ * Public constructor.
+ *
+ * @param listener the object this backend needs to wake up when new
+ * input comes in
+ * @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.
+ * @throws UnsupportedEncodingException if an exception is thrown when
+ * creating the InputStreamReader
*/
- @Override
- public void flushScreen() {
- screen.flushPhysical();
+ public ECMA48Backend(final Object listener, final InputStream input,
+ final OutputStream output) throws UnsupportedEncodingException {
+
+ // Create a terminal and explicitly set stdin into raw mode
+ terminal = new ECMA48Terminal(listener, input, output);
+
+ // Keep the terminal's sessionInfo so that TApplication can see it
+ sessionInfo = ((ECMA48Terminal) terminal).getSessionInfo();
+
+ // ECMA48Terminal is the screen too
+ screen = (ECMA48Terminal) terminal;
}
/**
- * Get keyboard, mouse, and screen resize events.
+ * Public constructor.
*
- * @param queue list to append new events to
+ * @param listener the object this backend needs to wake up when new
+ * input comes in
+ * @param input the InputStream underlying 'reader'. Its available()
+ * method is used to determine if reader.read() will block or not.
+ * @param reader a Reader connected to the remote user.
+ * @param writer a PrintWriter connected to the remote user.
+ * @param setRawMode if true, set System.in into raw mode with stty.
+ * This should in general not be used. It is here solely for Demo3,
+ * which uses System.in.
+ * @throws IllegalArgumentException if input, reader, or writer are null.
*/
- @Override
- public void getEvents(final List<TInputEvent> queue) {
- if (terminal.hasEvents()) {
- terminal.getEvents(queue);
- }
+ public ECMA48Backend(final Object listener, final InputStream input,
+ final Reader reader, final PrintWriter writer,
+ final boolean setRawMode) {
+
+ // Create a terminal and explicitly set stdin into raw mode
+ terminal = new ECMA48Terminal(listener, input, reader, writer,
+ setRawMode);
+
+ // Keep the terminal's sessionInfo so that TApplication can see it
+ sessionInfo = ((ECMA48Terminal) terminal).getSessionInfo();
+
+ // ECMA48Terminal is the screen too
+ screen = (ECMA48Terminal) terminal;
}
/**
- * Close the I/O, restore the console, etc.
+ * Public constructor.
+ *
+ * @param listener the object this backend needs to wake up when new
+ * input comes in
+ * @param input the InputStream underlying 'reader'. Its available()
+ * method is used to determine if reader.read() will block or not.
+ * @param reader a Reader connected to the remote user.
+ * @param writer a PrintWriter connected to the remote user.
+ * @throws IllegalArgumentException if input, reader, or writer are null.
*/
- @Override
- public void shutdown() {
- terminal.shutdown();
+ public ECMA48Backend(final Object listener, final InputStream input,
+ final Reader reader, final PrintWriter writer) {
+
+ this(listener, input, reader, writer, false);
}
}