*
* 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"),
*/
package jexer.tterminal;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+import java.io.BufferedOutputStream;
+import java.io.CharArrayWriter;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
+import java.io.PrintWriter;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collections;
-import java.util.LinkedList;
+import java.util.HashMap;
import java.util.List;
import jexer.TKeypress;
-import jexer.event.TMouseEvent;
+import jexer.backend.GlyphMaker;
import jexer.bits.Color;
import jexer.bits.Cell;
import jexer.bits.CellAttributes;
+import jexer.bits.StringUtils;
+import jexer.event.TInputEvent;
+import jexer.event.TKeypressEvent;
+import jexer.event.TMouseEvent;
+import jexer.io.ReadTimeoutException;
+import jexer.io.TimeoutInputStream;
import static jexer.TKeypress.*;
/**
- * This implements a complex ANSI ECMA-48/ISO 6429/ANSI X3.64 type consoles,
+ * This implements a complex ECMA-48/ISO 6429/ANSI X3.64 type console,
* including a scrollback buffer.
*
* <p>
*/
public class ECMA48 implements Runnable {
+ // ------------------------------------------------------------------------
+ // Constants --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* The emulator can emulate several kinds of terminals.
*/
}
/**
- * Return the proper primary Device Attributes string.
- *
- * @return string to send to remote side that is appropriate for the
- * this.type
+ * Parser character scan states.
*/
- private String deviceTypeResponse() {
- switch (type) {
- case VT100:
- // "I am a VT100 with advanced video option" (often VT102)
- return "\033[?1;2c";
-
- case VT102:
- // "I am a VT102"
- return "\033[?6c";
-
- case VT220:
- case XTERM:
- // "I am a VT220" - 7 bit version
- if (!s8c1t) {
- return "\033[?62;1;6c";
- }
- // "I am a VT220" - 8 bit version
- return "\u009b?62;1;6c";
- default:
- throw new IllegalArgumentException("Invalid device type: " + type);
- }
+ private enum ScanState {
+ GROUND,
+ ESCAPE,
+ ESCAPE_INTERMEDIATE,
+ CSI_ENTRY,
+ CSI_PARAM,
+ CSI_INTERMEDIATE,
+ CSI_IGNORE,
+ DCS_ENTRY,
+ DCS_INTERMEDIATE,
+ DCS_PARAM,
+ DCS_PASSTHROUGH,
+ DCS_IGNORE,
+ DCS_SIXEL,
+ SOSPMAPC_STRING,
+ OSC_STRING,
+ VT52_DIRECT_CURSOR_ADDRESS
}
/**
- * Return the proper TERM environment variable for this device type.
- *
- * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
- * @return "vt100", "xterm", etc.
+ * The selected number pad mode (DECKPAM, DECKPNM). We record this, but
+ * can't really use it in keypress() because we do not see number pad
+ * events from TKeypress.
*/
- public static String deviceTypeTerm(final DeviceType deviceType) {
- switch (deviceType) {
- case VT100:
- return "vt100";
-
- case VT102:
- return "vt102";
-
- case VT220:
- return "vt220";
-
- case XTERM:
- return "xterm";
-
- default:
- throw new IllegalArgumentException("Invalid device type: "
- + deviceType);
- }
+ private enum KeypadMode {
+ Application,
+ Numeric
}
/**
- * Return the proper LANG for this device type. Only XTERM devices know
- * about UTF-8, the others are defined by their standard to be either
- * 7-bit or 8-bit characters only.
- *
- * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
- * @param baseLang a base language without UTF-8 flag such as "C" or
- * "en_US"
- * @return "en_US", "en_US.UTF-8", etc.
+ * Arrow keys can emit three different sequences (DECCKM or VT52
+ * submode).
*/
- public static String deviceTypeLang(final DeviceType deviceType,
- final String baseLang) {
-
- switch (deviceType) {
-
- case VT100:
- case VT102:
- case VT220:
- return baseLang;
-
- case XTERM:
- return baseLang + ".UTF-8";
-
- default:
- throw new IllegalArgumentException("Invalid device type: "
- + deviceType);
- }
+ private enum ArrowKeyMode {
+ VT52,
+ ANSI,
+ VT100
}
/**
- * Write a string directly to the remote side.
- *
- * @param str string to send
+ * Available character sets for GL, GR, G0, G1, G2, G3.
*/
- private void writeRemote(final String str) {
- if (stopReaderThread) {
- // Reader hit EOF, bail out now.
- close();
- return;
- }
-
- // System.err.printf("writeRemote() '%s'\n", str);
+ private enum CharacterSet {
+ US,
+ UK,
+ DRAWING,
+ ROM,
+ ROM_SPECIAL,
+ VT52_GRAPHICS,
+ DEC_SUPPLEMENTAL,
+ NRC_DUTCH,
+ NRC_FINNISH,
+ NRC_FRENCH,
+ NRC_FRENCH_CA,
+ NRC_GERMAN,
+ NRC_ITALIAN,
+ NRC_NORWEGIAN,
+ NRC_SPANISH,
+ NRC_SWEDISH,
+ NRC_SWISS
+ }
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- if (outputStream == null) {
- return;
- }
- try {
- for (int i = 0; i < str.length(); i++) {
- outputStream.write(str.charAt(i));
- }
- outputStream.flush();
- } catch (IOException e) {
- // Assume EOF
- close();
- }
- break;
- case XTERM:
- if (output == null) {
- return;
- }
- try {
- output.write(str);
- output.flush();
- } catch (IOException e) {
- // Assume EOF
- close();
- }
- break;
- default:
- throw new IllegalArgumentException("Invalid device type: " + type);
- }
+ /**
+ * Single-shift states used by the C1 control characters SS2 (0x8E) and
+ * SS3 (0x8F).
+ */
+ private enum Singleshift {
+ NONE,
+ SS2,
+ SS3
}
/**
- * Close the input and output streams and stop the reader thread. Note
- * that it is safe to call this multiple times.
+ * VT220+ lockshift states.
*/
- public final void close() {
+ private enum LockshiftMode {
+ NONE,
+ G1_GR,
+ G2_GR,
+ G2_GL,
+ G3_GR,
+ G3_GL
+ }
- // Synchronize so we don't stomp on the reader thread.
- synchronized (this) {
+ /**
+ * XTERM mouse reporting protocols.
+ */
+ public enum MouseProtocol {
+ OFF,
+ X10,
+ NORMAL,
+ BUTTONEVENT,
+ ANYEVENT
+ }
- // Close the input stream
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- if (inputStream != null) {
- try {
- inputStream.close();
- } catch (IOException e) {
- // SQUASH
- }
- inputStream = null;
- }
- break;
- case XTERM:
- if (input != null) {
- try {
- input.close();
- } catch (IOException e) {
- // SQUASH
- }
- input = null;
- inputStream = null;
- }
- break;
- }
+ /**
+ * XTERM mouse reporting encodings.
+ */
+ private enum MouseEncoding {
+ X10,
+ UTF8,
+ SGR
+ }
- // Tell the reader thread to stop looking at input.
- if (stopReaderThread == false) {
- stopReaderThread = true;
- try {
- readerThread.join();
- } catch (InterruptedException e) {
- e.printStackTrace();
- }
- }
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
- // Close the output stream.
- switch (type) {
- case VT100:
- case VT102:
- case VT220:
- if (outputStream != null) {
- try {
- outputStream.close();
- } catch (IOException e) {
- // SQUASH
- }
- outputStream = null;
- }
- break;
- case XTERM:
- if (output != null) {
- try {
- output.close();
- } catch (IOException e) {
- // SQUASH
- }
- output = null;
- }
- break;
- default:
- throw new IllegalArgumentException("Invalid device type: "
- + type);
- }
- } // synchronized (this)
- }
+ /**
+ * The enclosing listening object.
+ */
+ private DisplayListener displayListener;
/**
* When true, the reader thread is expected to exit.
private Thread readerThread = null;
/**
- * See if the reader thread is still running.
- *
- * @return if true, we are still connected to / reading from the remote
- * side
+ * The type of emulator to be.
*/
- public final boolean isReading() {
- return (!stopReaderThread);
- }
+ private DeviceType type = DeviceType.VT102;
/**
- * The type of emulator to be.
+ * The scrollback buffer characters + attributes.
*/
- private DeviceType type = DeviceType.VT102;
+ private volatile ArrayList<DisplayLine> scrollback;
/**
- * Obtain a new blank display line for an external user
- * (e.g. TTerminalWindow).
- *
- * @return new blank line
+ * The raw display buffer characters + attributes.
*/
- public final DisplayLine getBlankDisplayLine() {
- return new DisplayLine(currentState.attr);
- }
-
- /**
- * The scrollback buffer characters + attributes.
- */
- private volatile List<DisplayLine> scrollback;
-
- /**
- * Get the scrollback buffer.
- *
- * @return the scrollback buffer
- */
- public final List<DisplayLine> getScrollbackBuffer() {
- return scrollback;
- }
+ private volatile ArrayList<DisplayLine> display;
/**
- * The raw display buffer characters + attributes.
- */
- private volatile List<DisplayLine> display;
-
- /**
- * Get the display buffer.
- *
- * @return the display buffer
+ * The maximum number of lines in the scrollback buffer.
*/
- public final List<DisplayLine> getDisplayBuffer() {
- return display;
- }
+ private int maxScrollback = 10000;
/**
* The terminal's input. For type == XTERM, this is an InputStreamReader
/**
* The terminal's raw InputStream. This is used for type != XTERM.
*/
- private volatile InputStream inputStream;
+ private volatile TimeoutInputStream inputStream;
/**
* The terminal's output. For type == XTERM, this wraps an
*/
private OutputStream outputStream;
- /**
- * Parser character scan states.
- */
- enum ScanState {
- GROUND,
- ESCAPE,
- ESCAPE_INTERMEDIATE,
- CSI_ENTRY,
- CSI_PARAM,
- CSI_INTERMEDIATE,
- CSI_IGNORE,
- DCS_ENTRY,
- DCS_INTERMEDIATE,
- DCS_PARAM,
- DCS_PASSTHROUGH,
- DCS_IGNORE,
- SOSPMAPC_STRING,
- OSC_STRING,
- VT52_DIRECT_CURSOR_ADDRESS
- }
-
/**
* Current scanning state.
*/
private ScanState scanState;
- /**
- * The selected number pad mode (DECKPAM, DECKPNM). We record this, but
- * can't really use it in keypress() because we do not see number pad
- * events from TKeypress.
- */
- private enum KeypadMode {
- Application,
- Numeric
- }
-
- /**
- * Arrow keys can emit three different sequences (DECCKM or VT52
- * submode).
- */
- private enum ArrowKeyMode {
- VT52,
- ANSI,
- VT100
- }
-
- /**
- * Available character sets for GL, GR, G0, G1, G2, G3.
- */
- private enum CharacterSet {
- US,
- UK,
- DRAWING,
- ROM,
- ROM_SPECIAL,
- VT52_GRAPHICS,
- DEC_SUPPLEMENTAL,
- NRC_DUTCH,
- NRC_FINNISH,
- NRC_FRENCH,
- NRC_FRENCH_CA,
- NRC_GERMAN,
- NRC_ITALIAN,
- NRC_NORWEGIAN,
- NRC_SPANISH,
- NRC_SWEDISH,
- NRC_SWISS
- }
-
- /**
- * Single-shift states used by the C1 control characters SS2 (0x8E) and
- * SS3 (0x8F).
- */
- private enum Singleshift {
- NONE,
- SS2,
- SS3
- }
-
- /**
- * VT220+ lockshift states.
- */
- private enum LockshiftMode {
- NONE,
- G1_GR,
- G2_GR,
- G2_GL,
- G3_GR,
- G3_GL
- }
-
- /**
- * XTERM mouse reporting protocols.
- */
- private enum MouseProtocol {
- OFF,
- X10,
- NORMAL,
- BUTTONEVENT,
- ANYEVENT
- }
-
/**
* Which mouse protocol is active.
*/
private MouseProtocol mouseProtocol = MouseProtocol.OFF;
/**
- * XTERM mouse reporting encodings.
+ * Which mouse encoding is active.
*/
- private enum MouseEncoding {
- X10,
- UTF8,
- SGR
- }
+ private MouseEncoding mouseEncoding = MouseEncoding.X10;
/**
- * Which mouse encoding is active.
+ * A terminal may request that the mouse pointer be hidden using a
+ * Privacy Message containing either "hideMousePointer" or
+ * "showMousePointer". This is currently only used within Jexer by
+ * TTerminalWindow so that only the bottom-most instance of nested
+ * Jexer's draws the mouse within its application window.
*/
- private MouseEncoding mouseEncoding = MouseEncoding.X10;
+ private boolean hideMousePointer = false;
/**
* Physical display width. We start at 80x24, but the user can resize us
*/
private int width;
- /**
- * Get the display width.
- *
- * @return the width (usually 80 or 132)
- */
- public final int getWidth() {
- return width;
- }
-
/**
* Physical display height. We start at 80x24, but the user can resize
* us bigger/smaller.
*/
private int height;
- /**
- * Get the display height.
- *
- * @return the height (usually 24)
- */
- public final int getHeight() {
- return height;
- }
-
/**
* Top margin of the scrolling region.
*/
/**
* Last character printed.
*/
- private char repCh;
+ private int repCh;
/**
* VT100-style line wrapping: a character is placed in column 80 (or
*/
private boolean cursorVisible = true;
- /**
- * Get visible cursor flag.
- *
- * @return if true, the cursor is visible
- */
- public final boolean isCursorVisible() {
- return cursorVisible;
- }
-
/**
* Screen title as set by the xterm OSC sequence. Lots of applications
* send a screenTitle regardless of whether it is an xterm client or not.
*/
private String screenTitle = "";
- /**
- * Get the screen title as set by the xterm OSC sequence. Lots of
- * applications send a screenTitle regardless of whether it is an xterm
- * client or not.
- *
- * @return screen title
- */
- public final String getScreenTitle() {
- return screenTitle;
- }
-
/**
* Parameter characters being collected.
*/
*/
private boolean columns132 = false;
- /**
- * Get 132 columns value.
- *
- * @return if true, the terminal is in 132 column mode
- */
- public final boolean isColumns132() {
- return columns132;
- }
-
/**
* true = reverse video. Set by DECSCNM.
*/
*/
private boolean fullDuplex = true;
+ /**
+ * The current terminal state.
+ */
+ private SaveableState currentState;
+
+ /**
+ * The last saved terminal state.
+ */
+ private SaveableState savedState;
+
+ /**
+ * The 88- or 256-color support RGB colors.
+ */
+ private List<Integer> colors88;
+
+ /**
+ * Sixel collection buffer.
+ */
+ private StringBuilder sixelParseBuffer;
+
+ /**
+ * Sixel shared palette.
+ */
+ private HashMap<Integer, java.awt.Color> sixelPalette;
+
+ /**
+ * The width of a character cell in pixels.
+ */
+ private int textWidth = 16;
+
+ /**
+ * The height of a character cell in pixels.
+ */
+ private int textHeight = 20;
+
+ /**
+ * The last used height of a character cell in pixels, only used for
+ * full-width chars.
+ */
+ private int lastTextHeight = -1;
+
+ /**
+ * The glyph drawer for full-width chars.
+ */
+ private GlyphMaker glyphMaker = null;
+
+ /**
+ * Input queue for keystrokes and mouse events to send to the remote
+ * side.
+ */
+ private ArrayList<TInputEvent> userQueue = new ArrayList<TInputEvent>();
+
/**
* DECSC/DECRC save/restore a subset of the total state. This class
* encapsulates those specific flags/modes.
}
}
- /**
- * The current terminal state.
- */
- private SaveableState currentState;
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
- * The last saved terminal state.
+ * Public constructor.
+ *
+ * @param type one of the DeviceType constants to select VT100, VT102,
+ * VT220, or XTERM
+ * @param inputStream an InputStream connected to the remote side. For
+ * type == XTERM, inputStream is converted to a Reader with UTF-8
+ * encoding.
+ * @param outputStream an OutputStream connected to the remote user. For
+ * type == XTERM, outputStream is converted to a Writer with UTF-8
+ * encoding.
+ * @param displayListener a callback to the outer display, or null for
+ * default VT100 behavior
+ * @throws UnsupportedEncodingException if an exception is thrown when
+ * creating the InputStreamReader
*/
- private SaveableState savedState;
+ public ECMA48(final DeviceType type, final InputStream inputStream,
+ final OutputStream outputStream, final DisplayListener displayListener)
+ throws UnsupportedEncodingException {
- /**
- * Clear the CSI parameters and flags.
- */
- private void toGround() {
- csiParams.clear();
- collectBuffer = new StringBuilder(8);
- scanState = ScanState.GROUND;
- }
+ assert (inputStream != null);
+ assert (outputStream != null);
- /**
- * Reset the tab stops list.
+ csiParams = new ArrayList<Integer>();
+ tabStops = new ArrayList<Integer>();
+ scrollback = new ArrayList<DisplayLine>();
+ display = new ArrayList<DisplayLine>();
+
+ this.type = type;
+ if (inputStream instanceof TimeoutInputStream) {
+ this.inputStream = (TimeoutInputStream)inputStream;
+ } else {
+ this.inputStream = new TimeoutInputStream(inputStream, 2000);
+ }
+ if (type == DeviceType.XTERM) {
+ this.input = new InputStreamReader(this.inputStream, "UTF-8");
+ this.output = new OutputStreamWriter(new
+ BufferedOutputStream(outputStream), "UTF-8");
+ this.outputStream = null;
+ } else {
+ this.output = null;
+ this.outputStream = new BufferedOutputStream(outputStream);
+ }
+ this.displayListener = displayListener;
+
+ reset();
+ for (int i = 0; i < height; i++) {
+ display.add(new DisplayLine(currentState.attr));
+ }
+
+ // Spin up the input reader
+ readerThread = new Thread(this);
+ readerThread.start();
+ }
+
+ // ------------------------------------------------------------------------
+ // Runnable ---------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Read function runs on a separate thread.
+ */
+ public final void run() {
+ boolean utf8 = false;
+ boolean done = false;
+
+ if (type == DeviceType.XTERM) {
+ utf8 = true;
+ }
+
+ // available() will often return > 1, so we need to read in chunks to
+ // stay caught up.
+ char [] readBufferUTF8 = null;
+ byte [] readBuffer = null;
+ if (utf8) {
+ readBufferUTF8 = new char[2048];
+ } else {
+ readBuffer = new byte[2048];
+ }
+
+ while (!done && !stopReaderThread) {
+ synchronized (userQueue) {
+ while (userQueue.size() > 0) {
+ handleUserEvent(userQueue.remove(0));
+ }
+ }
+
+ try {
+ int n = inputStream.available();
+
+ // System.err.printf("available() %d\n", n); System.err.flush();
+ if (utf8) {
+ if (readBufferUTF8.length < n) {
+ // The buffer wasn't big enough, make it huger
+ int newSizeHalf = Math.max(readBufferUTF8.length,
+ n);
+
+ readBufferUTF8 = new char[newSizeHalf * 2];
+ }
+ } else {
+ if (readBuffer.length < n) {
+ // The buffer wasn't big enough, make it huger
+ int newSizeHalf = Math.max(readBuffer.length, n);
+ readBuffer = new byte[newSizeHalf * 2];
+ }
+ }
+ if (n == 0) {
+ try {
+ Thread.sleep(10);
+ } catch (InterruptedException e) {
+ // SQUASH
+ }
+ continue;
+ }
+
+ int rc = -1;
+ try {
+ if (utf8) {
+ rc = input.read(readBufferUTF8, 0,
+ readBufferUTF8.length);
+ } else {
+ rc = inputStream.read(readBuffer, 0,
+ readBuffer.length);
+ }
+ } catch (ReadTimeoutException e) {
+ rc = 0;
+ }
+
+ // System.err.printf("read() %d\n", rc); System.err.flush();
+ if (rc == -1) {
+ // This is EOF
+ done = true;
+ } else {
+ // Don't step on UI events
+ synchronized (this) {
+ if (utf8) {
+ for (int i = 0; i < rc;) {
+ int ch = Character.codePointAt(readBufferUTF8,
+ i);
+ i += Character.charCount(ch);
+ consume(ch);
+ }
+ } else {
+ for (int i = 0; i < rc; i++) {
+ consume(readBuffer[i]);
+ }
+ }
+ }
+ // Permit my enclosing UI to know that I updated.
+ if (displayListener != null) {
+ displayListener.displayChanged();
+ }
+ }
+ // System.err.println("end while loop"); System.err.flush();
+ } catch (IOException e) {
+ done = true;
+
+ // This is an unusual case. We want to see the stack trace,
+ // but it is related to the spawned process rather than the
+ // actual UI. We will generate the stack trace, and consume
+ // it as though it was emitted by the shell.
+ CharArrayWriter writer= new CharArrayWriter();
+ // Send a ST and RIS to clear the emulator state.
+ try {
+ writer.write("\033\\\033c");
+ writer.write("\n-----------------------------------\n");
+ e.printStackTrace(new PrintWriter(writer));
+ writer.write("\n-----------------------------------\n");
+ } catch (IOException e2) {
+ // SQUASH
+ }
+ char [] stackTrace = writer.toCharArray();
+ for (int i = 0; i < stackTrace.length; i++) {
+ if (stackTrace[i] == '\n') {
+ consume('\r');
+ }
+ consume(stackTrace[i]);
+ }
+ }
+
+ } // while ((done == false) && (stopReaderThread == false))
+
+ // Let the rest of the world know that I am done.
+ stopReaderThread = true;
+
+ try {
+ inputStream.cancelRead();
+ inputStream.close();
+ inputStream = null;
+ } catch (IOException e) {
+ // SQUASH
+ }
+ try {
+ input.close();
+ input = null;
+ } catch (IOException e) {
+ // SQUASH
+ }
+
+ // Permit my enclosing UI to know that I updated.
+ if (displayListener != null) {
+ displayListener.displayChanged();
+ }
+
+ // System.err.println("*** run() exiting..."); System.err.flush();
+ }
+
+ // ------------------------------------------------------------------------
+ // ECMA48 -----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Process keyboard and mouse events from the user.
+ *
+ * @param event the input event to consume
+ */
+ private void handleUserEvent(final TInputEvent event) {
+ if (event instanceof TKeypressEvent) {
+ keypress(((TKeypressEvent) event).getKey());
+ }
+ if (event instanceof TMouseEvent) {
+ mouse((TMouseEvent) event);
+ }
+ }
+
+ /**
+ * Add a keyboard and mouse event from the user to the queue.
+ *
+ * @param event the input event to consume
+ */
+ public void addUserEvent(final TInputEvent event) {
+ synchronized (userQueue) {
+ userQueue.add(event);
+ }
+ }
+
+ /**
+ * Return the proper primary Device Attributes string.
+ *
+ * @return string to send to remote side that is appropriate for the
+ * this.type
+ */
+ private String deviceTypeResponse() {
+ switch (type) {
+ case VT100:
+ // "I am a VT100 with advanced video option" (often VT102)
+ return "\033[?1;2c";
+
+ case VT102:
+ // "I am a VT102"
+ return "\033[?6c";
+
+ case VT220:
+ case XTERM:
+ // "I am a VT220" - 7 bit version
+ if (!s8c1t) {
+ return "\033[?62;1;6;9;4;22c";
+ // return "\033[?62;1;6;9;4;22;444c";
+ }
+ // "I am a VT220" - 8 bit version
+ return "\u009b?62;1;6;9;4;22c";
+ // return "\u009b?62;1;6;9;4;22;444c";
+ default:
+ throw new IllegalArgumentException("Invalid device type: " + type);
+ }
+ }
+
+ /**
+ * Return the proper TERM environment variable for this device type.
+ *
+ * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
+ * @return "vt100", "xterm", etc.
+ */
+ public static String deviceTypeTerm(final DeviceType deviceType) {
+ switch (deviceType) {
+ case VT100:
+ return "vt100";
+
+ case VT102:
+ return "vt102";
+
+ case VT220:
+ return "vt220";
+
+ case XTERM:
+ return "xterm";
+
+ default:
+ throw new IllegalArgumentException("Invalid device type: "
+ + deviceType);
+ }
+ }
+
+ /**
+ * Return the proper LANG for this device type. Only XTERM devices know
+ * about UTF-8, the others are defined by their standard to be either
+ * 7-bit or 8-bit characters only.
+ *
+ * @param deviceType DeviceType.VT100, DeviceType, XTERM, etc.
+ * @param baseLang a base language without UTF-8 flag such as "C" or
+ * "en_US"
+ * @return "en_US", "en_US.UTF-8", etc.
+ */
+ public static String deviceTypeLang(final DeviceType deviceType,
+ final String baseLang) {
+
+ switch (deviceType) {
+
+ case VT100:
+ case VT102:
+ case VT220:
+ return baseLang;
+
+ case XTERM:
+ return baseLang + ".UTF-8";
+
+ default:
+ throw new IllegalArgumentException("Invalid device type: "
+ + deviceType);
+ }
+ }
+
+ /**
+ * Write a string directly to the remote side.
+ *
+ * @param str string to send
+ */
+ public void writeRemote(final String str) {
+ if (stopReaderThread) {
+ // Reader hit EOF, bail out now.
+ close();
+ return;
+ }
+
+ // System.err.printf("writeRemote() '%s'\n", str);
+
+ switch (type) {
+ case VT100:
+ case VT102:
+ case VT220:
+ if (outputStream == null) {
+ return;
+ }
+ try {
+ outputStream.flush();
+ for (int i = 0; i < str.length(); i++) {
+ outputStream.write(str.charAt(i));
+ }
+ outputStream.flush();
+ } catch (IOException e) {
+ // Assume EOF
+ close();
+ }
+ break;
+ case XTERM:
+ if (output == null) {
+ return;
+ }
+ try {
+ output.flush();
+ output.write(str);
+ output.flush();
+ } catch (IOException e) {
+ // Assume EOF
+ close();
+ }
+ break;
+ default:
+ throw new IllegalArgumentException("Invalid device type: " + type);
+ }
+ }
+
+ /**
+ * Close the input and output streams and stop the reader thread. Note
+ * that it is safe to call this multiple times.
+ */
+ public final void close() {
+
+ // Tell the reader thread to stop looking at input. It will close
+ // the input streams.
+ if (stopReaderThread == false) {
+ stopReaderThread = true;
+ try {
+ readerThread.join(1000);
+ } catch (InterruptedException e) {
+ // SQUASH
+ }
+ }
+
+ // Now close the output stream.
+ switch (type) {
+ case VT100:
+ case VT102:
+ case VT220:
+ if (outputStream != null) {
+ try {
+ outputStream.close();
+ } catch (IOException e) {
+ // SQUASH
+ }
+ outputStream = null;
+ }
+ break;
+ case XTERM:
+ if (outputStream != null) {
+ try {
+ outputStream.close();
+ } catch (IOException e) {
+ // SQUASH
+ }
+ outputStream = null;
+ }
+ if (output != null) {
+ try {
+ output.close();
+ } catch (IOException e) {
+ // SQUASH
+ }
+ output = null;
+ }
+ break;
+ default:
+ throw new IllegalArgumentException("Invalid device type: " +
+ type);
+ }
+ }
+
+ /**
+ * See if the reader thread is still running.
+ *
+ * @return if true, we are still connected to / reading from the remote
+ * side
+ */
+ public final boolean isReading() {
+ return (!stopReaderThread);
+ }
+
+ /**
+ * Obtain a new blank display line for an external user
+ * (e.g. TTerminalWindow).
+ *
+ * @return new blank line
+ */
+ public final DisplayLine getBlankDisplayLine() {
+ return new DisplayLine(currentState.attr);
+ }
+
+ /**
+ * Get the scrollback buffer.
+ *
+ * @return the scrollback buffer
+ */
+ public final List<DisplayLine> getScrollbackBuffer() {
+ return scrollback;
+ }
+
+ /**
+ * Get the display buffer.
+ *
+ * @return the display buffer
+ */
+ public final List<DisplayLine> getDisplayBuffer() {
+ return display;
+ }
+
+ /**
+ * Get the visible display + scrollback buffer, offset by a specified
+ * number of rows from the bottom.
+ *
+ * @param visibleHeight the total height of the display to show
+ * @param scrollBottom the number of rows from the bottom to scroll back
+ * @return a copy of the display + scrollback buffers
+ */
+ public final List<DisplayLine> getVisibleDisplay(final int visibleHeight,
+ final int scrollBottom) {
+
+ assert (visibleHeight >= 0);
+ assert (scrollBottom >= 0);
+
+ int visibleBottom = scrollback.size() + display.size() - scrollBottom;
+
+ List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>();
+ int visibleTop = visibleBottom - visibleHeight;
+ if (visibleTop < 0) {
+ for (int i = visibleTop; i < 0; i++) {
+ preceedingBlankLines.add(getBlankDisplayLine());
+ }
+ visibleTop = 0;
+ }
+ assert (visibleTop >= 0);
+
+ List<DisplayLine> displayLines = new ArrayList<DisplayLine>();
+ displayLines.addAll(scrollback);
+ displayLines.addAll(display);
+
+ List<DisplayLine> visibleLines = new ArrayList<DisplayLine>();
+ visibleLines.addAll(preceedingBlankLines);
+ visibleLines.addAll(displayLines.subList(visibleTop, visibleBottom));
+
+ // Fill in the blank lines on bottom
+ int bottomBlankLines = visibleHeight - visibleLines.size();
+ assert (bottomBlankLines >= 0);
+ for (int i = 0; i < bottomBlankLines; i++) {
+ visibleLines.add(getBlankDisplayLine());
+ }
+
+ return copyBuffer(visibleLines);
+ }
+
+ /**
+ * Copy a display buffer.
+ *
+ * @param buffer the buffer to copy
+ * @return a deep copy of the buffer's data
+ */
+ private List<DisplayLine> copyBuffer(final List<DisplayLine> buffer) {
+ ArrayList<DisplayLine> result = new ArrayList<DisplayLine>(buffer.size());
+ for (DisplayLine line: buffer) {
+ result.add(new DisplayLine(line));
+ }
+ return result;
+ }
+
+ /**
+ * Get the display width.
+ *
+ * @return the width (usually 80 or 132)
+ */
+ public final int getWidth() {
+ return width;
+ }
+
+ /**
+ * Set the display width.
+ *
+ * @param width the new width
+ */
+ public final synchronized void setWidth(final int width) {
+ this.width = width;
+ rightMargin = width - 1;
+ if (currentState.cursorX >= width) {
+ currentState.cursorX = width - 1;
+ }
+ if (savedState.cursorX >= width) {
+ savedState.cursorX = width - 1;
+ }
+ }
+
+ /**
+ * Get the display height.
+ *
+ * @return the height (usually 24)
+ */
+ public final int getHeight() {
+ return height;
+ }
+
+ /**
+ * Set the display height.
+ *
+ * @param height the new height
+ */
+ public final synchronized void setHeight(final int height) {
+ int delta = height - this.height;
+ this.height = height;
+ scrollRegionBottom += delta;
+ if (scrollRegionBottom < 0) {
+ scrollRegionBottom = height;
+ }
+ if (scrollRegionTop >= scrollRegionBottom) {
+ scrollRegionTop = 0;
+ }
+ if (currentState.cursorY >= height) {
+ currentState.cursorY = height - 1;
+ }
+ if (savedState.cursorY >= height) {
+ savedState.cursorY = height - 1;
+ }
+ while (display.size() < height) {
+ DisplayLine line = new DisplayLine(currentState.attr);
+ line.setReverseColor(reverseVideo);
+ display.add(line);
+ }
+ while (display.size() > height) {
+ scrollback.add(display.remove(0));
+ }
+ }
+
+ /**
+ * Get visible cursor flag.
+ *
+ * @return if true, the cursor is visible
+ */
+ public final boolean isCursorVisible() {
+ return cursorVisible;
+ }
+
+ /**
+ * Get the screen title as set by the xterm OSC sequence. Lots of
+ * applications send a screenTitle regardless of whether it is an xterm
+ * client or not.
+ *
+ * @return screen title
+ */
+ public final String getScreenTitle() {
+ return screenTitle;
+ }
+
+ /**
+ * Get 132 columns value.
+ *
+ * @return if true, the terminal is in 132 column mode
+ */
+ public final boolean isColumns132() {
+ return columns132;
+ }
+
+ /**
+ * Clear the CSI parameters and flags.
+ */
+ private void toGround() {
+ csiParams.clear();
+ collectBuffer = new StringBuilder(8);
+ scanState = ScanState.GROUND;
+ }
+
+ /**
+ * Reset the tab stops list.
+ */
+ private void resetTabStops() {
+ tabStops.clear();
+ for (int i = 0; (i * 8) <= rightMargin; i++) {
+ tabStops.add(Integer.valueOf(i * 8));
+ }
+ }
+
+ /**
+ * Reset the 88- or 256-colors.
+ */
+ private void resetColors() {
+ colors88 = new ArrayList<Integer>(256);
+ for (int i = 0; i < 256; i++) {
+ colors88.add(0);
+ }
+
+ // Set default system colors.
+ colors88.set(0, 0x00000000);
+ colors88.set(1, 0x00a80000);
+ colors88.set(2, 0x0000a800);
+ colors88.set(3, 0x00a85400);
+ colors88.set(4, 0x000000a8);
+ colors88.set(5, 0x00a800a8);
+ colors88.set(6, 0x0000a8a8);
+ colors88.set(7, 0x00a8a8a8);
+
+ colors88.set(8, 0x00545454);
+ colors88.set(9, 0x00fc5454);
+ colors88.set(10, 0x0054fc54);
+ colors88.set(11, 0x00fcfc54);
+ colors88.set(12, 0x005454fc);
+ colors88.set(13, 0x00fc54fc);
+ colors88.set(14, 0x0054fcfc);
+ colors88.set(15, 0x00fcfcfc);
+ }
+
+ /**
+ * Get the RGB value of one of the indexed colors.
+ *
+ * @param index the color index
+ * @return the RGB value
+ */
+ private int get88Color(final int index) {
+ // System.err.print("get88Color: " + index);
+ if ((index < 0) || (index > colors88.size())) {
+ // System.err.println(" -- UNKNOWN");
+ return 0;
+ }
+ // System.err.printf(" %08x\n", colors88.get(index));
+ return colors88.get(index);
+ }
+
+ /**
+ * Set one of the indexed colors to a color specification.
+ *
+ * @param index the color index
+ * @param spec the specification, typically something like "rgb:aa/bb/cc"
*/
- private void resetTabStops() {
- tabStops.clear();
- for (int i = 0; (i * 8) <= rightMargin; i++) {
- tabStops.add(new Integer(i * 8));
+ private void set88Color(final int index, final String spec) {
+ // System.err.println("set88Color: " + index + " '" + spec + "'");
+
+ if ((index < 0) || (index > colors88.size())) {
+ return;
+ }
+ if (spec.startsWith("rgb:")) {
+ String [] rgbTokens = spec.substring(4).split("/");
+ if (rgbTokens.length == 3) {
+ try {
+ int rgb = (Integer.parseInt(rgbTokens[0], 16) << 16);
+ rgb |= Integer.parseInt(rgbTokens[1], 16) << 8;
+ rgb |= Integer.parseInt(rgbTokens[2], 16);
+ // System.err.printf(" set to %08x\n", rgb);
+ colors88.set(index, rgb);
+ } catch (NumberFormatException e) {
+ // SQUASH
+ }
+ }
+ return;
+ }
+
+ if (spec.toLowerCase().equals("black")) {
+ colors88.set(index, 0x00000000);
+ } else if (spec.toLowerCase().equals("red")) {
+ colors88.set(index, 0x00a80000);
+ } else if (spec.toLowerCase().equals("green")) {
+ colors88.set(index, 0x0000a800);
+ } else if (spec.toLowerCase().equals("yellow")) {
+ colors88.set(index, 0x00a85400);
+ } else if (spec.toLowerCase().equals("blue")) {
+ colors88.set(index, 0x000000a8);
+ } else if (spec.toLowerCase().equals("magenta")) {
+ colors88.set(index, 0x00a800a8);
+ } else if (spec.toLowerCase().equals("cyan")) {
+ colors88.set(index, 0x0000a8a8);
+ } else if (spec.toLowerCase().equals("white")) {
+ colors88.set(index, 0x00a8a8a8);
}
+
}
/**
arrowKeyMode = ArrowKeyMode.ANSI;
keypadMode = KeypadMode.Numeric;
wrapLineFlag = false;
+ if (displayListener != null) {
+ width = displayListener.getDisplayWidth();
+ height = displayListener.getDisplayHeight();
+ rightMargin = width - 1;
+ }
// Flags
shiftOut = false;
// Tab stops
resetTabStops();
+ // Reset extra colors
+ resetColors();
+
// Clear CSI stuff
toGround();
}
- /**
- * Public constructor.
- *
- * @param type one of the DeviceType constants to select VT100, VT102,
- * VT220, or XTERM
- * @param inputStream an InputStream connected to the remote side. For
- * type == XTERM, inputStream is converted to a Reader with UTF-8
- * encoding.
- * @param outputStream an OutputStream connected to the remote user. For
- * type == XTERM, outputStream is converted to a Writer with UTF-8
- * encoding.
- * @throws UnsupportedEncodingException if an exception is thrown when
- * creating the InputStreamReader
- */
- public ECMA48(final DeviceType type, final InputStream inputStream,
- final OutputStream outputStream) throws UnsupportedEncodingException {
-
- assert (inputStream != null);
- assert (outputStream != null);
-
- csiParams = new ArrayList<Integer>();
- tabStops = new ArrayList<Integer>();
- scrollback = new LinkedList<DisplayLine>();
- display = new LinkedList<DisplayLine>();
-
- this.type = type;
- this.inputStream = inputStream;
- if (type == DeviceType.XTERM) {
- this.input = new InputStreamReader(inputStream, "UTF-8");
- this.output = new OutputStreamWriter(outputStream, "UTF-8");
- this.outputStream = null;
- } else {
- this.output = null;
- this.outputStream = outputStream;
- }
-
- reset();
- for (int i = 0; i < height; i++) {
- display.add(new DisplayLine(currentState.attr));
- }
-
- // Spin up the input reader
- readerThread = new Thread(this);
- readerThread.start();
- }
-
/**
* Append a new line to the bottom of the display, adding lines off the
* top to the scrollback buffer.
private void newDisplayLine() {
// Scroll the top line off into the scrollback buffer
scrollback.add(display.get(0));
+ if (scrollback.size() > maxScrollback) {
+ scrollback.remove(0);
+ scrollback.trimToSize();
+ }
display.remove(0);
+ display.trimToSize();
DisplayLine line = new DisplayLine(currentState.attr);
line.setReverseColor(reverseVideo);
display.add(line);
*
* @param ch character to display
*/
- private void printCharacter(final char ch) {
+ private void printCharacter(final int ch) {
int rightMargin = this.rightMargin;
+ if (StringUtils.width(ch) == 2) {
+ // This is a full-width character. Save two spaces, and then
+ // draw the character as two image halves.
+ int x0 = currentState.cursorX;
+ int y0 = currentState.cursorY;
+ printCharacter(' ');
+ printCharacter(' ');
+ if ((currentState.cursorX == x0 + 2)
+ && (currentState.cursorY == y0)
+ ) {
+ // We can draw both halves of the character.
+ drawHalves(x0, y0, x0 + 1, y0, ch);
+ } else if ((currentState.cursorX == x0 + 1)
+ && (currentState.cursorY == y0)
+ ) {
+ // VT100 line wrap behavior: we should be at the right
+ // margin. We can draw both halves of the character.
+ drawHalves(x0, y0, x0 + 1, y0, ch);
+ } else {
+ // The character splits across the line. Draw the entire
+ // character on the new line, giving one more space for it.
+ x0 = currentState.cursorX - 1;
+ y0 = currentState.cursorY;
+ printCharacter(' ');
+ drawHalves(x0, y0, x0 + 1, y0, ch);
+ }
+ return;
+ }
+
// Check if we have double-width, and if so chop at 40/66 instead of
// 80/132
if (display.get(currentState.cursorY).isDoubleWidth()) {
CellAttributes newCellAttributes = (CellAttributes) newCell;
newCellAttributes.setTo(currentState.attr);
DisplayLine line = display.get(currentState.cursorY);
- // Insert mode special case
- if (insertMode == true) {
- line.insert(currentState.cursorX, newCell);
- } else {
- // Replace an existing character
- line.replace(currentState.cursorX, newCell);
- }
- // Increment horizontal
- if (wrapLineFlag == false) {
- currentState.cursorX++;
- if (currentState.cursorX > rightMargin) {
- currentState.cursorX--;
+ if (StringUtils.width(ch) == 1) {
+ // Insert mode special case
+ if (insertMode == true) {
+ line.insert(currentState.cursorX, newCell);
+ } else {
+ // Replace an existing character
+ line.replace(currentState.cursorX, newCell);
+ }
+
+ // Increment horizontal
+ if (wrapLineFlag == false) {
+ currentState.cursorX++;
+ if (currentState.cursorX > rightMargin) {
+ currentState.cursorX--;
+ }
}
}
}
*
* @param mouse mouse event received from the local user
*/
- public void mouse(final TMouseEvent mouse) {
+ private void mouse(final TMouseEvent mouse) {
/*
System.err.printf("mouse(): protocol %s encoding %s mouse %s\n",
*
* @param keypress keypress received from the local user
*/
- public void keypress(final TKeypress keypress) {
+ private void keypress(final TKeypress keypress) {
writeRemote(keypressToString(keypress));
}
* @param keypress keypress received from the local user
* @return string to transmit to the remote side
*/
+ @SuppressWarnings("fallthrough")
private String keypressToString(final TKeypress keypress) {
if ((fullDuplex == false) && (!keypress.isFnKey())) {
* the remote side.
*/
if (keypress.getChar() < 0x20) {
- handleControlChar(keypress.getChar());
+ handleControlChar((char) keypress.getChar());
} else {
// Local echo for everything else
printCharacter(keypress.getChar());
}
+ if (displayListener != null) {
+ displayListener.displayChanged();
+ }
}
if ((newLineMode == true) && (keypress.equals(kbEnter))) {
// Handle control characters
if ((keypress.isCtrl()) && (!keypress.isFnKey())) {
StringBuilder sb = new StringBuilder();
- char ch = keypress.getChar();
+ int ch = keypress.getChar();
ch -= 0x40;
- sb.append(ch);
+ sb.append(Character.toChars(ch));
return sb.toString();
}
// Handle alt characters
if ((keypress.isAlt()) && (!keypress.isFnKey())) {
StringBuilder sb = new StringBuilder("\033");
- char ch = keypress.getChar();
- sb.append(ch);
+ int ch = keypress.getChar();
+ sb.append(Character.toChars(ch));
return sb.toString();
}
- if (keypress.equals(kbBackspace)) {
+ if (keypress.equals(kbBackspaceDel)) {
switch (type) {
case VT100:
return "\010";
if (keypress.equalsWithoutModifiers(kbPgUp)) {
switch (type) {
case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '5', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '5', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '5', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
+ return xtermBuildKeySequence("\033[", '5', '~',
+ keypress.isCtrl(), keypress.isAlt(),
+ keypress.isShift());
default:
return "\033[5~";
}
if (keypress.equalsWithoutModifiers(kbPgDn)) {
switch (type) {
case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '6', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '6', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '6', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
+ return xtermBuildKeySequence("\033[", '6', '~',
+ keypress.isCtrl(), keypress.isAlt(),
+ keypress.isShift());
default:
return "\033[6~";
}
if (keypress.equalsWithoutModifiers(kbIns)) {
switch (type) {
case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '2', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '2', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '2', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
+ return xtermBuildKeySequence("\033[", '2', '~',
+ keypress.isCtrl(), keypress.isAlt(),
+ keypress.isShift());
default:
return "\033[2~";
}
if (keypress.equalsWithoutModifiers(kbDel)) {
switch (type) {
case XTERM:
- switch (arrowKeyMode) {
- case ANSI:
- return xtermBuildKeySequence("\033[", '3', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT52:
- return xtermBuildKeySequence("\033", '3', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- case VT100:
- return xtermBuildKeySequence("\033O", '3', '~',
- keypress.isCtrl(), keypress.isAlt(),
- keypress.isShift());
- }
+ return xtermBuildKeySequence("\033[", '3', '~',
+ keypress.isCtrl(), keypress.isAlt(),
+ keypress.isShift());
default:
// Delete sends real delete for VTxxx
return "\177";
// Non-alt, non-ctrl characters
if (!keypress.isFnKey()) {
StringBuilder sb = new StringBuilder();
- sb.append(keypress.getChar());
+ sb.append(Character.toChars(keypress.getChar()));
return sb.toString();
}
return "";
* @param charsetGr character set defined for GR
* @return character to display on the screen
*/
- private char mapCharacterCharset(final char ch,
+ private char mapCharacterCharset(final int ch,
final CharacterSet charsetGl,
final CharacterSet charsetGr) {
* @param ch either 8-bit or Unicode character from the remote side
* @return character to display on the screen
*/
- private char mapCharacter(final char ch) {
+ private int mapCharacter(final int ch) {
if (ch >= 0x100) {
// Unicode character, just return it
return ch;
switch (currentState.glLockshift) {
case G1_GR:
- assert (false);
+ throw new IllegalArgumentException("programming bug");
case G2_GR:
- assert (false);
+ throw new IllegalArgumentException("programming bug");
case G3_GR:
- assert (false);
+ throw new IllegalArgumentException("programming bug");
case G2_GL:
// LS2
switch (currentState.grLockshift) {
case G2_GL:
- assert (false);
+ throw new IllegalArgumentException("programming bug");
case G3_GL:
- assert (false);
+ throw new IllegalArgumentException("programming bug");
case G1_GR:
// LS1R
display.size());
List<DisplayLine> displayMiddle = display.subList(regionBottom + 1
- remaining, regionBottom + 1);
- display = new LinkedList<DisplayLine>(displayTop);
+ display = new ArrayList<DisplayLine>(displayTop);
display.addAll(displayMiddle);
for (int i = 0; i < n; i++) {
DisplayLine line = new DisplayLine(currentState.attr);
display.size());
List<DisplayLine> displayMiddle = display.subList(regionTop,
regionTop + remaining);
- display = new LinkedList<DisplayLine>(displayTop);
+ display = new ArrayList<DisplayLine>(displayTop);
for (int i = 0; i < n; i++) {
DisplayLine line = new DisplayLine(currentState.attr);
line.setReverseColor(reverseVideo);
*/
private void param(final byte ch) {
if (csiParams.size() == 0) {
- csiParams.add(new Integer(0));
+ csiParams.add(Integer.valueOf(0));
}
Integer x = csiParams.get(csiParams.size() - 1);
if ((ch >= '0') && (ch <= '9')) {
csiParams.set(csiParams.size() - 1, x);
}
- if (ch == ';') {
- csiParams.add(new Integer(0));
+ if ((ch == ';') && (csiParams.size() < 16)) {
+ csiParams.add(Integer.valueOf(0));
}
}
*/
private void setToggle(final boolean value) {
boolean decPrivateModeFlag = false;
+
for (int i = 0; i < collectBuffer.length(); i++) {
if (collectBuffer.charAt(i) == '?') {
decPrivateModeFlag = true;
} else {
// 80 columns
columns132 = false;
- rightMargin = 79;
+ if ((displayListener != null)
+ && (type == DeviceType.XTERM)
+ ) {
+ // For xterms, reset to the actual width, not 80
+ // columns.
+ width = displayListener.getDisplayWidth();
+ rightMargin = width - 1;
+ } else {
+ rightMargin = 79;
+ width = rightMargin + 1;
+ }
}
- width = rightMargin + 1;
// Entire screen is cleared, and scrolling region is
// reset
eraseScreen(0, 0, height - 1, width - 1, false);
break;
+ case 80:
+ if (type == DeviceType.XTERM) {
+ if (decPrivateModeFlag == true) {
+ if (value == true) {
+ // Enable sixel scrolling (default).
+ // TODO
+ } else {
+ // Disable sixel scrolling.
+ // TODO
+ }
+ }
+ }
+
+ break;
+
case 1000:
if ((type == DeviceType.XTERM)
&& (decPrivateModeFlag == true)
}
break;
+ case 1070:
+ if (type == DeviceType.XTERM) {
+ if (decPrivateModeFlag == true) {
+ if (value == true) {
+ // Use private color registers for each sixel
+ // graphic (default).
+ sixelPalette = null;
+ } else {
+ // Use shared color registers for each sixel
+ // graphic.
+ sixelPalette = new HashMap<Integer, java.awt.Color>();
+ }
+ }
+ }
+ break;
+
default:
break;
* DECALN - Screen alignment display.
*/
private void decaln() {
- Cell newCell = new Cell();
- newCell.setChar('E');
+ Cell newCell = new Cell('E');
for (DisplayLine line: display) {
for (int i = 0; i < line.length(); i++) {
line.replace(i, newCell);
return;
}
+ int sgrColorMode = -1;
+ boolean idx88Color = false;
+ boolean rgbColor = false;
+ int rgbRed = -1;
+ int rgbGreen = -1;
+
for (Integer i: csiParams) {
+ if ((sgrColorMode == 38) || (sgrColorMode == 48)) {
+
+ assert (type == DeviceType.XTERM);
+
+ if (idx88Color) {
+ /*
+ * Indexed color mode, we now have the index number.
+ */
+ if (sgrColorMode == 38) {
+ currentState.attr.setForeColorRGB(get88Color(i));
+ } else {
+ assert (sgrColorMode == 48);
+ currentState.attr.setBackColorRGB(get88Color(i));
+ }
+ sgrColorMode = -1;
+ idx88Color = false;
+ continue;
+ }
+
+ if (rgbColor) {
+ /*
+ * RGB color mode, we are collecting tokens.
+ */
+ if (rgbRed == -1) {
+ rgbRed = i & 0xFF;
+ } else if (rgbGreen == -1) {
+ rgbGreen = i & 0xFF;
+ } else {
+ int rgb = rgbRed << 16;
+ rgb |= rgbGreen << 8;
+ rgb |= i & 0xFF;
+
+ // System.err.printf("RGB: %08x\n", rgb);
+
+ if (sgrColorMode == 38) {
+ currentState.attr.setForeColorRGB(rgb);
+ } else {
+ assert (sgrColorMode == 48);
+ currentState.attr.setBackColorRGB(rgb);
+ }
+ rgbRed = -1;
+ rgbGreen = -1;
+ sgrColorMode = -1;
+ rgbColor = false;
+ }
+ continue;
+ }
+
+ switch (i) {
+
+ case 2:
+ /*
+ * RGB color mode.
+ */
+ rgbColor = true;
+ break;
+
+ case 5:
+ /*
+ * Indexed color mode.
+ */
+ idx88Color = true;
+ break;
+
+ default:
+ /*
+ * This is neither indexed nor RGB color. Bail out.
+ */
+ return;
+ }
+
+ } // if ((sgrColorMode == 38) || (sgrColorMode == 48))
+
switch (i) {
case 0:
// TODO
break;
+ case 90:
+ // Set black foreground
+ currentState.attr.setForeColorRGB(get88Color(8));
+ break;
+ case 91:
+ // Set red foreground
+ currentState.attr.setForeColorRGB(get88Color(9));
+ break;
+ case 92:
+ // Set green foreground
+ currentState.attr.setForeColorRGB(get88Color(10));
+ break;
+ case 93:
+ // Set yellow foreground
+ currentState.attr.setForeColorRGB(get88Color(11));
+ break;
+ case 94:
+ // Set blue foreground
+ currentState.attr.setForeColorRGB(get88Color(12));
+ break;
+ case 95:
+ // Set magenta foreground
+ currentState.attr.setForeColorRGB(get88Color(13));
+ break;
+ case 96:
+ // Set cyan foreground
+ currentState.attr.setForeColorRGB(get88Color(14));
+ break;
+ case 97:
+ // Set white foreground
+ currentState.attr.setForeColorRGB(get88Color(15));
+ break;
+
+ case 100:
+ // Set black background
+ currentState.attr.setBackColorRGB(get88Color(8));
+ break;
+ case 101:
+ // Set red background
+ currentState.attr.setBackColorRGB(get88Color(9));
+ break;
+ case 102:
+ // Set green background
+ currentState.attr.setBackColorRGB(get88Color(10));
+ break;
+ case 103:
+ // Set yellow background
+ currentState.attr.setBackColorRGB(get88Color(11));
+ break;
+ case 104:
+ // Set blue background
+ currentState.attr.setBackColorRGB(get88Color(12));
+ break;
+ case 105:
+ // Set magenta background
+ currentState.attr.setBackColorRGB(get88Color(13));
+ break;
+ case 106:
+ // Set cyan background
+ currentState.attr.setBackColorRGB(get88Color(14));
+ break;
+ case 107:
+ // Set white background
+ currentState.attr.setBackColorRGB(get88Color(15));
+ break;
+
default:
break;
}
case 30:
// Set black foreground
currentState.attr.setForeColor(Color.BLACK);
+ currentState.attr.setForeColorRGB(-1);
break;
case 31:
// Set red foreground
currentState.attr.setForeColor(Color.RED);
+ currentState.attr.setForeColorRGB(-1);
break;
case 32:
// Set green foreground
currentState.attr.setForeColor(Color.GREEN);
+ currentState.attr.setForeColorRGB(-1);
break;
case 33:
// Set yellow foreground
currentState.attr.setForeColor(Color.YELLOW);
+ currentState.attr.setForeColorRGB(-1);
break;
case 34:
// Set blue foreground
currentState.attr.setForeColor(Color.BLUE);
+ currentState.attr.setForeColorRGB(-1);
break;
case 35:
// Set magenta foreground
currentState.attr.setForeColor(Color.MAGENTA);
+ currentState.attr.setForeColorRGB(-1);
break;
case 36:
// Set cyan foreground
currentState.attr.setForeColor(Color.CYAN);
+ currentState.attr.setForeColorRGB(-1);
break;
case 37:
// Set white foreground
currentState.attr.setForeColor(Color.WHITE);
+ currentState.attr.setForeColorRGB(-1);
break;
case 38:
if (type == DeviceType.XTERM) {
* permits these ISO-8613-3 SGR sequences to be separated
* by colons rather than semicolons.)
*
- * We will not support any of these additional color
- * codes at this time:
+ * We will support only the following:
+ *
+ * 1. Indexed color mode (88- or 256-color modes).
+ *
+ * 2. Direct RGB.
+ *
+ * These cover most of the use cases in the real world.
*
- * 1. http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors
- * has a detailed discussion of the current state of
- * RGB in various terminals, the point of which is
- * that none of them really do the same thing despite
- * all appearing to be "xterm".
+ * HOWEVER, note that this is an awful broken "standard",
+ * with no way to do it "right". See
+ * http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors
+ * for a detailed discussion of the current state of RGB
+ * in various terminals, the point of which is that none
+ * of them really do the same thing despite all appearing
+ * to be "xterm".
*
- * 2. As seen in
- * https://bugs.kde.org/show_bug.cgi?id=107487#c3,
- * even supporting just the "indexed mode" of these
- * sequences (which could align easily with existing
- * SGR colors) is assumed to mean full support of
- * 24-bit RGB. So it is all or nothing.
+ * Also see
+ * https://bugs.kde.org/show_bug.cgi?id=107487#c3 .
+ * where it is assumed that supporting just the "indexed
+ * mode" of these sequences (which could align easily
+ * with existing SGR colors) is assumed to mean full
+ * support of 24-bit RGB. So it is all or nothing.
*
* Finally, these sequences break the assumptions of
* standard ECMA-48 style parsers as pointed out at
* Therefore in order to keep a clean display, we cannot
* parse anything else in this sequence.
*/
- return;
+ sgrColorMode = 38;
+ continue;
} else {
// Underscore on, default foreground color
currentState.attr.setUnderline(true);
// Underscore off, default foreground color
currentState.attr.setUnderline(false);
currentState.attr.setForeColor(Color.WHITE);
+ currentState.attr.setForeColorRGB(-1);
break;
case 40:
// Set black background
currentState.attr.setBackColor(Color.BLACK);
+ currentState.attr.setBackColorRGB(-1);
break;
case 41:
// Set red background
currentState.attr.setBackColor(Color.RED);
+ currentState.attr.setBackColorRGB(-1);
break;
case 42:
// Set green background
currentState.attr.setBackColor(Color.GREEN);
+ currentState.attr.setBackColorRGB(-1);
break;
case 43:
// Set yellow background
currentState.attr.setBackColor(Color.YELLOW);
+ currentState.attr.setBackColorRGB(-1);
break;
case 44:
// Set blue background
currentState.attr.setBackColor(Color.BLUE);
+ currentState.attr.setBackColorRGB(-1);
break;
case 45:
// Set magenta background
currentState.attr.setBackColor(Color.MAGENTA);
+ currentState.attr.setBackColorRGB(-1);
break;
case 46:
// Set cyan background
currentState.attr.setBackColor(Color.CYAN);
+ currentState.attr.setBackColorRGB(-1);
break;
case 47:
// Set white background
currentState.attr.setBackColor(Color.WHITE);
+ currentState.attr.setBackColorRGB(-1);
break;
case 48:
if (type == DeviceType.XTERM) {
* permits these ISO-8613-3 SGR sequences to be separated
* by colons rather than semicolons.)
*
- * We will not support this at this time. Also, in order
- * to keep a clean display, we cannot parse anything else
- * in this sequence.
+ * We will support only the following:
+ *
+ * 1. Indexed color mode (88- or 256-color modes).
+ *
+ * 2. Direct RGB.
+ *
+ * These cover most of the use cases in the real world.
+ *
+ * HOWEVER, note that this is an awful broken "standard",
+ * with no way to do it "right". See
+ * http://invisible-island.net/ncurses/ncurses.faq.html#xterm_16MegaColors
+ * for a detailed discussion of the current state of RGB
+ * in various terminals, the point of which is that none
+ * of them really do the same thing despite all appearing
+ * to be "xterm".
+ *
+ * Also see
+ * https://bugs.kde.org/show_bug.cgi?id=107487#c3 .
+ * where it is assumed that supporting just the "indexed
+ * mode" of these sequences (which could align easily
+ * with existing SGR colors) is assumed to mean full
+ * support of 24-bit RGB. So it is all or nothing.
+ *
+ * Finally, these sequences break the assumptions of
+ * standard ECMA-48 style parsers as pointed out at
+ * https://bugs.kde.org/show_bug.cgi?id=107487#c11 .
+ * Therefore in order to keep a clean display, we cannot
+ * parse anything else in this sequence.
*/
- return;
+ sgrColorMode = 48;
+ continue;
}
break;
case 49:
// Default background
currentState.attr.setBackColor(Color.BLACK);
+ currentState.attr.setBackColorRGB(-1);
break;
default:
if (collectBuffer.charAt(0) == '>') {
extendedFlag = 1;
if (collectBuffer.length() >= 2) {
- i = Integer.parseInt(args.toString());
+ i = Integer.parseInt(args);
}
} else if (collectBuffer.charAt(0) == '=') {
extendedFlag = 2;
if (collectBuffer.length() >= 2) {
- i = Integer.parseInt(args.toString());
+ i = Integer.parseInt(args);
}
} else {
// Unknown code, bail out
}
/**
- * Handle the SCAN_OSC_STRING state. Handle this in VT100 because lots
- * of remote systems will send an XTerm title sequence even if TERM isn't
- * xterm.
+ * Handle the SCAN_OSC_STRING state. Handle this in VT100 because lots
+ * of remote systems will send an XTerm title sequence even if TERM isn't
+ * xterm.
+ *
+ * @param xtermChar the character received from the remote side
+ */
+ private void oscPut(final char xtermChar) {
+ // System.err.println("oscPut: " + xtermChar);
+
+ // Collect first
+ collectBuffer.append(xtermChar);
+
+ // Xterm cases...
+ if ((xtermChar == 0x07)
+ || (collectBuffer.toString().endsWith("\033\\"))
+ ) {
+ String args = null;
+ if (xtermChar == 0x07) {
+ args = collectBuffer.substring(0, collectBuffer.length() - 1);
+ } else {
+ args = collectBuffer.substring(0, collectBuffer.length() - 2);
+ }
+
+ String [] p = args.split(";");
+ if (p.length > 0) {
+ if ((p[0].equals("0")) || (p[0].equals("2"))) {
+ if (p.length > 1) {
+ // Screen title
+ screenTitle = p[1];
+ }
+ }
+
+ if (p[0].equals("4")) {
+ for (int i = 1; i + 1 < p.length; i += 2) {
+ // Set a color index value
+ try {
+ set88Color(Integer.parseInt(p[i]), p[i + 1]);
+ } catch (NumberFormatException e) {
+ // SQUASH
+ }
+ }
+ }
+
+ if (p[0].equals("10")) {
+ if (p[1].equals("?")) {
+ // Respond with foreground color.
+ java.awt.Color color = jexer.backend.SwingTerminal.attrToForegroundColor(currentState.attr);
+
+ writeRemote(String.format(
+ "\033]10;rgb:%04x/%04x/%04x\033\\",
+ color.getRed() << 8,
+ color.getGreen() << 8,
+ color.getBlue() << 8));
+ }
+ }
+
+ if (p[0].equals("11")) {
+ if (p[1].equals("?")) {
+ // Respond with background color.
+ java.awt.Color color = jexer.backend.SwingTerminal.attrToBackgroundColor(currentState.attr);
+
+ writeRemote(String.format(
+ "\033]11;rgb:%04x/%04x/%04x\033\\",
+ color.getRed() << 8,
+ color.getGreen() << 8,
+ color.getBlue() << 8));
+ }
+ }
+
+ if (p[0].equals("444") && (p.length == 5)) {
+ // Jexer image
+ parseJexerImage(p[1], p[2], p[3], p[4]);
+ }
+
+ }
+
+ // Go to SCAN_GROUND state
+ toGround();
+ return;
+ }
+ }
+
+ /**
+ * Handle the SCAN_SOSPMAPC_STRING state. This is currently only used by
+ * Jexer ECMA48Terminal to talk to ECMA48.
*
- * @param xtermChar the character received from the remote side
+ * @param pmChar the character received from the remote side
*/
- private void oscPut(final char xtermChar) {
+ private void pmPut(final char pmChar) {
+ // System.err.println("pmPut: " + pmChar);
+
// Collect first
- collectBuffer.append(xtermChar);
+ collectBuffer.append(pmChar);
// Xterm cases...
- if (xtermChar == 0x07) {
- String args = collectBuffer.substring(0,
- collectBuffer.length() - 1);
- String [] p = args.toString().split(";");
- if (p.length > 0) {
- if ((p[0].equals("0")) || (p[0].equals("2"))) {
- if (p.length > 1) {
- // Screen title
- screenTitle = p[1];
- }
- }
+ if (collectBuffer.toString().endsWith("\033\\")) {
+ String arg = null;
+ arg = collectBuffer.substring(0, collectBuffer.length() - 2);
+
+ // System.err.println("arg: '" + arg + "'");
+
+ if (arg.equals("hideMousePointer")) {
+ hideMousePointer = true;
+ }
+ if (arg.equals("showMousePointer")) {
+ hideMousePointer = false;
}
// Go to SCAN_GROUND state
}
}
+ /**
+ * Perform xterm window operations.
+ */
+ private void xtermWindowOps() {
+ boolean xtermPrivateModeFlag = false;
+
+ for (int i = 0; i < collectBuffer.length(); i++) {
+ if (collectBuffer.charAt(i) == '?') {
+ xtermPrivateModeFlag = true;
+ break;
+ }
+ }
+
+ int i = getCsiParam(0, 0);
+
+ if (!xtermPrivateModeFlag) {
+ switch (i) {
+ case 14:
+ // Report xterm text area size in pixels as CSI 4 ; height ;
+ // width t
+ writeRemote(String.format("\033[4;%d;%dt", textHeight * height,
+ textWidth * width));
+ break;
+ case 16:
+ // Report character size in pixels as CSI 6 ; height ; width
+ // t
+ writeRemote(String.format("\033[6;%d;%dt", textHeight,
+ textWidth));
+ break;
+ case 18:
+ // Report the text are size in characters as CSI 8 ; height ;
+ // width t
+ writeRemote(String.format("\033[8;%d;%dt", height, width));
+ break;
+ default:
+ break;
+ }
+ }
+ }
+
+ /**
+ * Respond to xterm sixel query.
+ */
+ private void xtermSixelQuery() {
+ int item = getCsiParam(0, 0);
+ int action = getCsiParam(1, 0);
+ int value = getCsiParam(2, 0);
+
+ switch (item) {
+ case 1:
+ if (action == 1) {
+ // Report number of color registers.
+ writeRemote(String.format("\033[?%d;%d;%dS", item, 0, 1024));
+ return;
+ }
+ break;
+ default:
+ break;
+ }
+ // We will not support this option.
+ writeRemote(String.format("\033[?%d;%dS", item, action));
+ }
+
/**
* Run this input character through the ECMA48 state machine.
*
* @param ch character from the remote side
*/
- private void consume(char ch) {
+ private void consume(int ch) {
// DEBUG
- // System.err.printf("%c", ch);
+ // System.err.printf("%c STATE = %s\n", ch, scanState);
// Special case for VT10x: 7-bit characters only
if ((type == DeviceType.VT100) || (type == DeviceType.VT102)) {
- ch = (char)(ch & 0x7F);
+ ch = (ch & 0x7F);
}
// Special "anywhere" states
// 80-8F, 91-97, 99, 9A, 9C --> execute, then switch to SCAN_GROUND
// 0x1B == ESCAPE
- if ((ch == 0x1B)
- && (scanState != ScanState.DCS_ENTRY)
- && (scanState != ScanState.DCS_INTERMEDIATE)
- && (scanState != ScanState.DCS_IGNORE)
- && (scanState != ScanState.DCS_PARAM)
- && (scanState != ScanState.DCS_PASSTHROUGH)
- ) {
-
- scanState = ScanState.ESCAPE;
- return;
+ if (ch == 0x1B) {
+ if ((type == DeviceType.XTERM)
+ && ((scanState == ScanState.OSC_STRING)
+ || (scanState == ScanState.DCS_SIXEL)
+ || (scanState == ScanState.SOSPMAPC_STRING))
+ ) {
+ // Xterm can pass ESCAPE to its OSC sequence.
+ // Xterm can pass ESCAPE to its DCS sequence.
+ // Jexer can pass ESCAPE to its PM sequence.
+ } else if ((scanState != ScanState.DCS_ENTRY)
+ && (scanState != ScanState.DCS_INTERMEDIATE)
+ && (scanState != ScanState.DCS_IGNORE)
+ && (scanState != ScanState.DCS_PARAM)
+ && (scanState != ScanState.DCS_PASSTHROUGH)
+ ) {
+ scanState = ScanState.ESCAPE;
+ return;
+ }
}
// 0x9B == CSI 8-bit sequence
// 00-17, 19, 1C-1F --> execute
// 80-8F, 91-9A, 9C --> execute
if ((ch <= 0x1F) || ((ch >= 0x80) && (ch <= 0x9F))) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-7F --> print
case ESCAPE:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
return;
}
// 20-2F --> collect, then switch to ESCAPE_INTERMEDIATE
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.ESCAPE_INTERMEDIATE;
return;
}
case ESCAPE_INTERMEDIATE:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-2F --> collect
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
}
// 30-7E --> dispatch, then switch to GROUND
case CSI_ENTRY:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-2F --> collect, then switch to CSI_INTERMEDIATE
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.CSI_INTERMEDIATE;
}
// 3C-3F --> collect, then switch to CSI_PARAM
if ((ch >= 0x3C) && (ch <= 0x3F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.CSI_PARAM;
}
case 'S':
// Scroll up X lines (default 1)
if (type == DeviceType.XTERM) {
- su();
+ boolean xtermPrivateModeFlag = false;
+ for (int i = 0; i < collectBuffer.length(); i++) {
+ if (collectBuffer.charAt(i) == '?') {
+ xtermPrivateModeFlag = true;
+ break;
+ }
+ }
+ if (xtermPrivateModeFlag) {
+ xtermSixelQuery();
+ } else {
+ su();
+ }
}
break;
case 'T':
}
break;
case 't':
+ if (type == DeviceType.XTERM) {
+ // Window operations
+ xtermWindowOps();
+ }
break;
case 'u':
// Restore cursor (ANSI.SYS)
case CSI_PARAM:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-2F --> collect, then switch to CSI_INTERMEDIATE
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.CSI_INTERMEDIATE;
}
case 'S':
// Scroll up X lines (default 1)
if (type == DeviceType.XTERM) {
- su();
+ boolean xtermPrivateModeFlag = false;
+ for (int i = 0; i < collectBuffer.length(); i++) {
+ if (collectBuffer.charAt(i) == '?') {
+ xtermPrivateModeFlag = true;
+ break;
+ }
+ }
+ if (xtermPrivateModeFlag) {
+ xtermSixelQuery();
+ } else {
+ su();
+ }
}
break;
case 'T':
decstbm();
break;
case 's':
+ break;
case 't':
+ if (type == DeviceType.XTERM) {
+ // Window operations
+ xtermWindowOps();
+ }
+ break;
case 'u':
case 'v':
case 'w':
case CSI_INTERMEDIATE:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-2F --> collect
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
}
// 0x30-3F goes to CSI_IGNORE
case CSI_IGNORE:
// 00-17, 19, 1C-1F --> execute
if (ch <= 0x1F) {
- handleControlChar(ch);
+ handleControlChar((char) ch);
}
// 20-2F --> collect
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
}
// 40-7E --> ignore, then switch to GROUND
// 0x1B 0x5C goes to GROUND
if (ch == 0x1B) {
- collect(ch);
+ collect((char) ch);
}
if (ch == 0x5C) {
if ((collectBuffer.length() > 0)
// 20-2F --> collect, then switch to DCS_INTERMEDIATE
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.DCS_INTERMEDIATE;
}
// 3C-3F --> collect, then switch to DCS_PARAM
if ((ch >= 0x3C) && (ch <= 0x3F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.DCS_PARAM;
}
scanState = ScanState.DCS_IGNORE;
}
- // 0x40-7E goes to DCS_PASSTHROUGH
- if ((ch >= 0x40) && (ch <= 0x7E)) {
+ // 0x71 goes to DCS_SIXEL
+ if (ch == 0x71) {
+ sixelParseBuffer = new StringBuilder();
+ scanState = ScanState.DCS_SIXEL;
+ } else if ((ch >= 0x40) && (ch <= 0x7E)) {
+ // 0x40-7E goes to DCS_PASSTHROUGH
scanState = ScanState.DCS_PASSTHROUGH;
}
return;
// 0x1B 0x5C goes to GROUND
if (ch == 0x1B) {
- collect(ch);
+ collect((char) ch);
}
if (ch == 0x5C) {
if ((collectBuffer.length() > 0)
// 0x1B 0x5C goes to GROUND
if (ch == 0x1B) {
- collect(ch);
+ collect((char) ch);
}
if (ch == 0x5C) {
if ((collectBuffer.length() > 0)
// 20-2F --> collect, then switch to DCS_INTERMEDIATE
if ((ch >= 0x20) && (ch <= 0x2F)) {
- collect(ch);
+ collect((char) ch);
scanState = ScanState.DCS_INTERMEDIATE;
}
scanState = ScanState.DCS_IGNORE;
}
- // 0x40-7E goes to DCS_PASSTHROUGH
- if ((ch >= 0x40) && (ch <= 0x7E)) {
+ // 0x71 goes to DCS_SIXEL
+ if (ch == 0x71) {
+ sixelParseBuffer = new StringBuilder();
+ scanState = ScanState.DCS_SIXEL;
+ } else if ((ch >= 0x40) && (ch <= 0x7E)) {
+ // 0x40-7E goes to DCS_PASSTHROUGH
scanState = ScanState.DCS_PASSTHROUGH;
}
return;
// 0x1B 0x5C goes to GROUND
if (ch == 0x1B) {
- collect(ch);
+ collect((char) ch);
}
if (ch == 0x5C) {
if ((collectBuffer.length() > 0)
}
// 00-17, 19, 1C-1F, 20-7E --> put
- // TODO
if (ch <= 0x17) {
+ // We ignore all DCS except sixel.
return;
}
if (ch == 0x19) {
+ // We ignore all DCS except sixel.
return;
}
if ((ch >= 0x1C) && (ch <= 0x1F)) {
+ // We ignore all DCS except sixel.
return;
}
if ((ch >= 0x20) && (ch <= 0x7E)) {
+ // We ignore all DCS except sixel.
return;
}
return;
+ case DCS_SIXEL:
+ // 0x9C goes to GROUND
+ if (ch == 0x9C) {
+ parseSixel();
+ toGround();
+ return;
+ }
+
+ // 0x1B 0x5C goes to GROUND
+ if (ch == 0x1B) {
+ collect((char) ch);
+ return;
+ }
+ if (ch == 0x5C) {
+ if ((collectBuffer.length() > 0)
+ && (collectBuffer.charAt(collectBuffer.length() - 1) == 0x1B)
+ ) {
+ parseSixel();
+ toGround();
+ return;
+ }
+ }
+
+ // 00-17, 19, 1C-1F, 20-7E --> put
+ if ((ch <= 0x17)
+ || (ch == 0x19)
+ || ((ch >= 0x1C) && (ch <= 0x1F))
+ || ((ch >= 0x20) && (ch <= 0x7E))
+ ) {
+ sixelParseBuffer.append((char) ch);
+ }
+
+ // 7F --> ignore
+ return;
+
case SOSPMAPC_STRING:
// 00-17, 19, 1C-1F, 20-7F --> ignore
+ // Special case for Jexer: PM can pass one control character
+ if (ch == 0x1B) {
+ pmPut((char) ch);
+ }
+
+ if ((ch >= 0x20) && (ch <= 0x7F)) {
+ pmPut((char) ch);
+ }
+
// 0x9C goes to GROUND
if (ch == 0x9C) {
toGround();
case OSC_STRING:
// Special case for Xterm: OSC can pass control characters
- if ((ch == 0x9C) || (ch <= 0x07)) {
- oscPut(ch);
+ if ((ch == 0x9C) || (ch == 0x07) || (ch == 0x1B)) {
+ oscPut((char) ch);
}
// 00-17, 19, 1C-1F --> ignore
// 20-7F --> osc_put
if ((ch >= 0x20) && (ch <= 0x7F)) {
- oscPut(ch);
+ oscPut((char) ch);
}
// 0x9C goes to GROUND
case VT52_DIRECT_CURSOR_ADDRESS:
// This is a special case for the VT52 sequence "ESC Y l c"
if (collectBuffer.length() == 0) {
- collect(ch);
+ collect((char) ch);
} else if (collectBuffer.length() == 1) {
// We've got the two characters, one in the buffer and the
// other in ch.
}
/**
- * Read function runs on a separate thread.
+ * Returns true if this terminal has requested the mouse pointer be
+ * hidden.
+ *
+ * @return true if this terminal has requested the mouse pointer be
+ * hidden
*/
- public final void run() {
- boolean utf8 = false;
- boolean done = false;
+ public final boolean hasHiddenMousePointer() {
+ return hideMousePointer;
+ }
- if (type == DeviceType.XTERM) {
- utf8 = true;
+ /**
+ * Get the mouse protocol.
+ *
+ * @return MouseProtocol.OFF, MouseProtocol.X10, etc.
+ */
+ public MouseProtocol getMouseProtocol() {
+ return mouseProtocol;
+ }
+
+ /**
+ * Draw the left and right cells of a two-cell-wide (full-width) glyph.
+ *
+ * @param leftX the x position to draw the left half to
+ * @param leftY the y position to draw the left half to
+ * @param rightX the x position to draw the right half to
+ * @param rightY the y position to draw the right half to
+ * @param ch the character to draw
+ */
+ private void drawHalves(final int leftX, final int leftY,
+ final int rightX, final int rightY, final int ch) {
+
+ // System.err.println("drawHalves(): " + Integer.toHexString(ch));
+
+ if (lastTextHeight != textHeight) {
+ glyphMaker = GlyphMaker.getInstance(textHeight);
+ lastTextHeight = textHeight;
+ }
+
+ Cell cell = new Cell(ch, currentState.attr);
+ BufferedImage image = glyphMaker.getImage(cell, textWidth * 2,
+ textHeight);
+ BufferedImage leftImage = image.getSubimage(0, 0, textWidth,
+ textHeight);
+ BufferedImage rightImage = image.getSubimage(textWidth, 0, textWidth,
+ textHeight);
+
+ Cell left = new Cell(cell);
+ left.setImage(leftImage);
+ left.setWidth(Cell.Width.LEFT);
+ display.get(leftY).replace(leftX, left);
+
+ Cell right = new Cell(cell);
+ right.setImage(rightImage);
+ right.setWidth(Cell.Width.RIGHT);
+ display.get(rightY).replace(rightX, right);
+ }
+
+ /**
+ * Set the width of a character cell in pixels.
+ *
+ * @param textWidth the width in pixels of a character cell
+ */
+ public void setTextWidth(final int textWidth) {
+ this.textWidth = textWidth;
+ }
+
+ /**
+ * Set the height of a character cell in pixels.
+ *
+ * @param textHeight the height in pixels of a character cell
+ */
+ public void setTextHeight(final int textHeight) {
+ this.textHeight = textHeight;
+ }
+
+ /**
+ * Parse a sixel string into a bitmap image, and overlay that image onto
+ * the text cells.
+ */
+ private void parseSixel() {
+
+ /*
+ System.err.println("parseSixel(): '" + sixelParseBuffer.toString()
+ + "'");
+ */
+
+ Sixel sixel = new Sixel(sixelParseBuffer.toString(), sixelPalette);
+ BufferedImage image = sixel.getImage();
+
+ // System.err.println("parseSixel(): image " + image);
+
+ if (image == null) {
+ // Sixel data was malformed in some way, bail out.
+ return;
}
- // available() will often return > 1, so we need to read in chunks to
- // stay caught up.
- char [] readBufferUTF8 = null;
- byte [] readBuffer = null;
- if (utf8) {
- readBufferUTF8 = new char[128];
+ /*
+ * Procedure:
+ *
+ * Break up the image into text cell sized pieces as a new array of
+ * Cells.
+ *
+ * Note original column position x0.
+ *
+ * For each cell:
+ *
+ * 1. Advance (printCharacter(' ')) for horizontal increment, or
+ * index (linefeed() + cursorPosition(y, x0)) for vertical
+ * increment.
+ *
+ * 2. Set (x, y) cell image data.
+ *
+ * 3. For the right and bottom edges:
+ *
+ * a. Render the text to pixels using Terminus font.
+ *
+ * b. Blit the image on top of the text, using alpha channel.
+ */
+ int cellColumns = image.getWidth() / textWidth;
+ if (cellColumns * textWidth < image.getWidth()) {
+ cellColumns++;
+ }
+ int cellRows = image.getHeight() / textHeight;
+ if (cellRows * textHeight < image.getHeight()) {
+ cellRows++;
+ }
+
+ // Break the image up into an array of cells.
+ Cell [][] cells = new Cell[cellColumns][cellRows];
+
+ for (int x = 0; x < cellColumns; x++) {
+ for (int y = 0; y < cellRows; y++) {
+
+ int width = textWidth;
+ if ((x + 1) * textWidth > image.getWidth()) {
+ width = image.getWidth() - (x * textWidth);
+ }
+ int height = textHeight;
+ if ((y + 1) * textHeight > image.getHeight()) {
+ height = image.getHeight() - (y * textHeight);
+ }
+
+ Cell cell = new Cell();
+ cell.setImage(image.getSubimage(x * textWidth,
+ y * textHeight, width, height));
+
+ cells[x][y] = cell;
+ }
+ }
+
+ int x0 = currentState.cursorX;
+ for (int y = 0; y < cellRows; y++) {
+ for (int x = 0; x < cellColumns; x++) {
+ assert (currentState.cursorX <= rightMargin);
+
+ // TODO: Render text of current cell first, then image over
+ // it (accounting for blank pixels). For now, just copy the
+ // cell.
+ DisplayLine line = display.get(currentState.cursorY);
+ line.replace(currentState.cursorX, cells[x][y]);
+
+ // If at the end of the visible screen, stop.
+ if (currentState.cursorX == rightMargin) {
+ break;
+ }
+ // Room for more image on the visible screen.
+ currentState.cursorX++;
+ }
+ linefeed();
+ cursorPosition(currentState.cursorY, x0);
+ }
+
+ }
+
+ /**
+ * Parse a "Jexer" image string into a bitmap image, and overlay that
+ * image onto the text cells.
+ *
+ * @param pw width token
+ * @param ph height token
+ * @param ps scroll token
+ * @param data pixel data
+ */
+ private void parseJexerImage(final String pw, final String ph,
+ final String ps, final String data) {
+
+ int imageWidth = 0;
+ int imageHeight = 0;
+ boolean scroll = false;
+ try {
+ imageWidth = Integer.parseInt(pw);
+ imageHeight = Integer.parseInt(ph);
+ } catch (NumberFormatException e) {
+ // SQUASH
+ return;
+ }
+ if ((imageWidth < 1)
+ || (imageWidth > 10000)
+ || (imageHeight < 1)
+ || (imageHeight > 10000)
+ ) {
+ return;
+ }
+ if (ps.equals("1")) {
+ scroll = true;
+ } else if (ps.equals("0")) {
+ scroll = false;
} else {
- readBuffer = new byte[128];
+ return;
}
- while (!done && !stopReaderThread) {
- try {
- int n = inputStream.available();
- // System.err.printf("available() %d\n", n); System.err.flush();
- if (utf8) {
- if (readBufferUTF8.length < n) {
- // The buffer wasn't big enough, make it huger
- int newSizeHalf = Math.max(readBufferUTF8.length, n);
+ java.util.Base64.Decoder base64 = java.util.Base64.getDecoder();
+ byte [] bytes = base64.decode(data);
+ if (bytes.length != (imageWidth * imageHeight * 3)) {
+ return;
+ }
- readBufferUTF8 = new char[newSizeHalf * 2];
- }
- } else {
- if (readBuffer.length < n) {
- // The buffer wasn't big enough, make it huger
- int newSizeHalf = Math.max(readBuffer.length, n);
- readBuffer = new byte[newSizeHalf * 2];
- }
+ BufferedImage image = new BufferedImage(imageWidth, imageHeight,
+ BufferedImage.TYPE_INT_ARGB);
+
+ for (int x = 0; x < imageWidth; x++) {
+ for (int y = 0; y < imageHeight; y++) {
+ int red = bytes[(y * imageWidth * 3) + (x * 3) ];
+ if (red < 0) {
+ red += 256;
+ }
+ int green = bytes[(y * imageWidth * 3) + (x * 3) + 1];
+ if (green < 0) {
+ green += 256;
}
+ int blue = bytes[(y * imageWidth * 3) + (x * 3) + 2];
+ if (blue < 0) {
+ blue += 256;
+ }
+ int rgb = 0xFF000000 | (red << 16) | (green << 8) | blue;
+ image.setRGB(x, y, rgb);
+ }
+ }
- int rc = -1;
- if (utf8) {
- rc = input.read(readBufferUTF8, 0,
- readBufferUTF8.length);
- } else {
- rc = inputStream.read(readBuffer, 0,
- readBuffer.length);
+ /*
+ * Procedure:
+ *
+ * Break up the image into text cell sized pieces as a new array of
+ * Cells.
+ *
+ * Note original column position x0.
+ *
+ * For each cell:
+ *
+ * 1. Advance (printCharacter(' ')) for horizontal increment, or
+ * index (linefeed() + cursorPosition(y, x0)) for vertical
+ * increment.
+ *
+ * 2. Set (x, y) cell image data.
+ *
+ * 3. For the right and bottom edges:
+ *
+ * a. Render the text to pixels using Terminus font.
+ *
+ * b. Blit the image on top of the text, using alpha channel.
+ */
+ int cellColumns = image.getWidth() / textWidth;
+ if (cellColumns * textWidth < image.getWidth()) {
+ cellColumns++;
+ }
+ int cellRows = image.getHeight() / textHeight;
+ if (cellRows * textHeight < image.getHeight()) {
+ cellRows++;
+ }
+
+ // Break the image up into an array of cells.
+ Cell [][] cells = new Cell[cellColumns][cellRows];
+
+ for (int x = 0; x < cellColumns; x++) {
+ for (int y = 0; y < cellRows; y++) {
+
+ int width = textWidth;
+ if ((x + 1) * textWidth > image.getWidth()) {
+ width = image.getWidth() - (x * textWidth);
}
- // System.err.printf("read() %d\n", rc); System.err.flush();
- if (rc == -1) {
- // This is EOF
- done = true;
- } else {
- for (int i = 0; i < rc; i++) {
- int ch = 0;
- if (utf8) {
- ch = readBufferUTF8[i];
- } else {
- ch = readBuffer[i];
- }
- // Don't step on UI events
- synchronized (this) {
- consume((char)ch);
- }
- }
+ int height = textHeight;
+ if ((y + 1) * textHeight > image.getHeight()) {
+ height = image.getHeight() - (y * textHeight);
}
- // System.err.println("end while loop"); System.err.flush();
- } catch (IOException e) {
- e.printStackTrace();
- done = true;
+
+ Cell cell = new Cell();
+ cell.setImage(image.getSubimage(x * textWidth,
+ y * textHeight, width, height));
+
+ cells[x][y] = cell;
}
- } // while ((done == false) && (stopReaderThread == false))
+ }
- // Let the rest of the world know that I am done.
- stopReaderThread = true;
+ int x0 = currentState.cursorX;
+ for (int y = 0; y < cellRows; y++) {
+ for (int x = 0; x < cellColumns; x++) {
+ assert (currentState.cursorX <= rightMargin);
+ DisplayLine line = display.get(currentState.cursorY);
+ line.replace(currentState.cursorX, cells[x][y]);
+ // If at the end of the visible screen, stop.
+ if (currentState.cursorX == rightMargin) {
+ break;
+ }
+ // Room for more image on the visible screen.
+ currentState.cursorX++;
+ }
+ if ((scroll == true)
+ || ((scroll == false)
+ && (currentState.cursorY < scrollRegionBottom))
+ ) {
+ linefeed();
+ }
+ cursorPosition(currentState.cursorY, x0);
+ }
- // System.err.println("*** run() exiting..."); System.err.flush();
}
}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff