--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * 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"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer;
+
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Graphics2D;
+import java.awt.image.BufferedImage;
+
+import java.io.InputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.text.MessageFormat;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.ResourceBundle;
+
+import jexer.backend.ECMA48Terminal;
+import jexer.backend.GlyphMaker;
+import jexer.backend.MultiScreen;
+import jexer.backend.SwingTerminal;
+import jexer.bits.Cell;
+import jexer.bits.CellAttributes;
+import jexer.event.TKeypressEvent;
+import jexer.event.TMenuEvent;
+import jexer.event.TMouseEvent;
+import jexer.event.TResizeEvent;
+import jexer.menu.TMenu;
+import jexer.tterminal.DisplayLine;
+import jexer.tterminal.DisplayListener;
+import jexer.tterminal.ECMA48;
+import static jexer.TKeypress.*;
+
+/**
+ * TTerminalWindow exposes a ECMA-48 / ANSI X3.64 style terminal in a widget.
+ */
+public class TTerminalWidget extends TScrollableWidget
+ implements DisplayListener {
+
+ /**
+ * Translated strings.
+ */
+ private static final ResourceBundle i18n = ResourceBundle.getBundle(TTerminalWidget.class.getName());
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * The emulator.
+ */
+ private ECMA48 emulator;
+
+ /**
+ * The Process created by the shell spawning constructor.
+ */
+ private Process shell;
+
+ /**
+ * If true, we are using the ptypipe utility to support dynamic window
+ * resizing. ptypipe is available at
+ * https://gitlab.com/klamonte/ptypipe .
+ */
+ private boolean ptypipe = false;
+
+ /**
+ * Double-height font.
+ */
+ private GlyphMaker doubleFont;
+
+ /**
+ * Last text width value.
+ */
+ private int lastTextWidth = -1;
+
+ /**
+ * Last text height value.
+ */
+ private int lastTextHeight = -1;
+
+ /**
+ * The blink state, used only by ECMA48 backend and when double-width
+ * chars must be drawn.
+ */
+ private boolean blinkState = true;
+
+ /**
+ * Timer flag, used only by ECMA48 backend and when double-width chars
+ * must be drawn.
+ */
+ private boolean haveTimer = false;
+
+ /**
+ * The last seen scrollback lines.
+ */
+ private List<DisplayLine> scrollback;
+
+ /**
+ * The last seen display lines.
+ */
+ private List<DisplayLine> display;
+
+ /**
+ * If true, the display has changed and needs updating.
+ */
+ private volatile boolean dirty = true;
+
+ /**
+ * Time that the display was last updated.
+ */
+ private long lastUpdateTime = 0;
+
+ /**
+ * If true, hide the mouse after typing a keystroke.
+ */
+ private boolean hideMouseWhenTyping = true;
+
+ /**
+ * If true, the mouse should not be displayed because a keystroke was
+ * typed.
+ */
+ private boolean typingHidMouse = false;
+
+ /**
+ * The return value from the emulator.
+ */
+ private int exitValue = -1;
+
+ /**
+ * Title to expose to a window.
+ */
+ private String title = "";
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Public constructor spawns a custom command line.
+ *
+ * @param parent parent widget
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param commandLine the command line to execute
+ */
+ public TTerminalWidget(final TWidget parent, final int x,
+ final int y, final String commandLine) {
+
+ this(parent, x, y, commandLine.split("\\s+"));
+ }
+
+ /**
+ * Public constructor spawns a custom command line.
+ *
+ * @param parent parent widget
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param command the command line to execute
+ */
+ public TTerminalWidget(final TWidget parent, final int x,
+ final int y, final String [] command) {
+
+ super(parent, x, y, 80, 24);
+
+ String [] fullCommand;
+
+ // Spawn a shell and pass its I/O to the other constructor.
+ if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
+ && (System.getProperty("jexer.TTerminal.ptypipe").
+ equals("true"))
+ ) {
+ ptypipe = true;
+ fullCommand = new String[command.length + 1];
+ fullCommand[0] = "ptypipe";
+ System.arraycopy(command, 0, fullCommand, 1, command.length);
+ } else if (System.getProperty("os.name").startsWith("Windows")) {
+ fullCommand = new String[3];
+ fullCommand[0] = "cmd";
+ fullCommand[1] = "/c";
+ fullCommand[2] = stringArrayToString(command);
+ } else if (System.getProperty("os.name").startsWith("Mac")) {
+ fullCommand = new String[6];
+ fullCommand[0] = "script";
+ fullCommand[1] = "-q";
+ fullCommand[2] = "-F";
+ fullCommand[3] = "/dev/null";
+ fullCommand[4] = "-c";
+ fullCommand[5] = stringArrayToString(command);
+ } else {
+ // Default: behave like Linux
+ fullCommand = new String[5];
+ fullCommand[0] = "script";
+ fullCommand[1] = "-fqe";
+ fullCommand[2] = "/dev/null";
+ fullCommand[3] = "-c";
+ fullCommand[4] = stringArrayToString(command);
+ }
+ spawnShell(fullCommand);
+ }
+
+ /**
+ * Public constructor spawns a shell.
+ *
+ * @param parent parent widget
+ * @param x column relative to parent
+ * @param y row relative to parent
+ */
+ public TTerminalWidget(final TWidget parent, final int x, final int y) {
+
+ super(parent, x, y, 80, 24);
+
+ if (System.getProperty("jexer.TTerminal.shell") != null) {
+ String shell = System.getProperty("jexer.TTerminal.shell");
+ if (shell.trim().startsWith("ptypipe")) {
+ ptypipe = true;
+ }
+ spawnShell(shell.split("\\s+"));
+ return;
+ }
+
+ String cmdShellWindows = "cmd.exe";
+
+ // You cannot run a login shell in a bare Process interactively, due
+ // to libc's behavior of buffering when stdin/stdout aren't a tty.
+ // Use 'script' instead to run a shell in a pty. And because BSD and
+ // GNU differ on the '-f' vs '-F' flags, we need two different
+ // commands. Lovely.
+ String cmdShellGNU = "script -fqe /dev/null";
+ String cmdShellBSD = "script -q -F /dev/null";
+
+ // ptypipe is another solution that permits dynamic window resizing.
+ String cmdShellPtypipe = "ptypipe /bin/bash --login";
+
+ // Spawn a shell and pass its I/O to the other constructor.
+ if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
+ && (System.getProperty("jexer.TTerminal.ptypipe").
+ equals("true"))
+ ) {
+ ptypipe = true;
+ spawnShell(cmdShellPtypipe.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Windows")) {
+ spawnShell(cmdShellWindows.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Mac")) {
+ spawnShell(cmdShellBSD.split("\\s+"));
+ } else if (System.getProperty("os.name").startsWith("Linux")) {
+ spawnShell(cmdShellGNU.split("\\s+"));
+ } else {
+ // When all else fails, assume GNU.
+ spawnShell(cmdShellGNU.split("\\s+"));
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // TScrollableWidget ------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Draw the display buffer.
+ */
+ @Override
+ public void draw() {
+ int width = getDisplayWidth();
+ boolean syncEmulator = false;
+ if ((System.currentTimeMillis() - lastUpdateTime >= 25)
+ && (dirty == true)
+ ) {
+ // Too much time has passed, draw it all.
+ syncEmulator = true;
+ } else if (emulator.isReading() && (dirty == false)) {
+ // Wait until the emulator has brought more data in.
+ syncEmulator = false;
+ } else if (!emulator.isReading() && (dirty == true)) {
+ // The emulator won't receive more data, update the display.
+ syncEmulator = true;
+ }
+
+ if ((syncEmulator == true)
+ || (scrollback == null)
+ || (display == null)
+ ) {
+ // We want to minimize the amount of time we have the emulator
+ // locked. Grab a copy of its display.
+ synchronized (emulator) {
+ // Update the scroll bars
+ reflowData();
+
+ if ((scrollback == null) || emulator.isReading()) {
+ scrollback = copyBuffer(emulator.getScrollbackBuffer());
+ display = copyBuffer(emulator.getDisplayBuffer());
+ }
+ width = emulator.getWidth();
+ }
+ dirty = false;
+ }
+
+ // Draw the box using my superclass
+ super.draw();
+
+ // Put together the visible rows
+ int visibleHeight = getHeight();
+ int visibleBottom = scrollback.size() + display.size()
+ + getVerticalValue();
+ assert (visibleBottom >= 0);
+
+ List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>();
+ int visibleTop = visibleBottom - visibleHeight;
+ if (visibleTop < 0) {
+ for (int i = visibleTop; i < 0; i++) {
+ preceedingBlankLines.add(emulator.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));
+
+ visibleHeight -= visibleLines.size();
+ assert (visibleHeight >= 0);
+
+ // Now draw the emulator screen
+ int row = 0;
+ for (DisplayLine line: visibleLines) {
+ int widthMax = width;
+ if (line.isDoubleWidth()) {
+ widthMax /= 2;
+ }
+ if (widthMax > getWidth()) {
+ widthMax = getWidth();
+ }
+ for (int i = 0; i < widthMax; i++) {
+ Cell ch = line.charAt(i);
+
+ if (ch.isImage()) {
+ putCharXY(i, row, ch);
+ continue;
+ }
+
+ Cell newCell = new Cell(ch);
+ boolean reverse = line.isReverseColor() ^ ch.isReverse();
+ newCell.setReverse(false);
+ if (reverse) {
+ if (ch.getForeColorRGB() < 0) {
+ newCell.setBackColor(ch.getForeColor());
+ newCell.setBackColorRGB(-1);
+ } else {
+ newCell.setBackColorRGB(ch.getForeColorRGB());
+ }
+ if (ch.getBackColorRGB() < 0) {
+ newCell.setForeColor(ch.getBackColor());
+ newCell.setForeColorRGB(-1);
+ } else {
+ newCell.setForeColorRGB(ch.getBackColorRGB());
+ }
+ }
+ if (line.isDoubleWidth()) {
+ putDoubleWidthCharXY(line, (i * 2), row, newCell);
+ } else {
+ putCharXY(i, row, newCell);
+ }
+ }
+ row++;
+ if (row == getHeight()) {
+ // Don't overwrite the box edge
+ break;
+ }
+ }
+ CellAttributes background = new CellAttributes();
+ // Fill in the blank lines on bottom
+ for (int i = 0; i < visibleHeight; i++) {
+ hLineXY(0, i + row, getWidth(), ' ', background);
+ }
+
+ }
+
+ /**
+ * Handle window close.
+ */
+ @Override
+ public void close() {
+ emulator.close();
+ if (shell != null) {
+ terminateShellChildProcess();
+ shell.destroy();
+ shell = null;
+ }
+ }
+
+ /**
+ * Handle window/screen resize events.
+ *
+ * @param resize resize event
+ */
+ @Override
+ public void onResize(final TResizeEvent resize) {
+
+ // Synchronize against the emulator so we don't stomp on its reader
+ // thread.
+ synchronized (emulator) {
+
+ if (resize.getType() == TResizeEvent.Type.WIDGET) {
+ // Resize the scroll bars
+ reflowData();
+ placeScrollbars();
+
+ // Get out of scrollback
+ setVerticalValue(0);
+
+ if (ptypipe) {
+ emulator.setWidth(getWidth());
+ emulator.setHeight(getHeight());
+
+ emulator.writeRemote("\033[8;" + getHeight() + ";" +
+ getWidth() + "t");
+ }
+ }
+ return;
+
+ } // synchronized (emulator)
+ }
+
+ /**
+ * Resize scrollbars for a new width/height.
+ */
+ @Override
+ public void reflowData() {
+
+ // Synchronize against the emulator so we don't stomp on its reader
+ // thread.
+ synchronized (emulator) {
+
+ // Pull cursor information
+ readEmulatorState();
+
+ // Vertical scrollbar
+ setTopValue(getHeight()
+ - (emulator.getScrollbackBuffer().size()
+ + emulator.getDisplayBuffer().size()));
+ setVerticalBigChange(getHeight());
+
+ } // synchronized (emulator)
+ }
+
+ /**
+ * Handle keystrokes.
+ *
+ * @param keypress keystroke event
+ */
+ @Override
+ public void onKeypress(final TKeypressEvent keypress) {
+ if (hideMouseWhenTyping) {
+ typingHidMouse = true;
+ }
+
+ // Scrollback up/down
+ if (keypress.equals(kbShiftPgUp)
+ || keypress.equals(kbCtrlPgUp)
+ || keypress.equals(kbAltPgUp)
+ ) {
+ bigVerticalDecrement();
+ return;
+ }
+ if (keypress.equals(kbShiftPgDn)
+ || keypress.equals(kbCtrlPgDn)
+ || keypress.equals(kbAltPgDn)
+ ) {
+ bigVerticalIncrement();
+ return;
+ }
+
+ if (emulator.isReading()) {
+ // Get out of scrollback
+ setVerticalValue(0);
+ emulator.addUserEvent(keypress);
+
+ // UGLY HACK TIME! cmd.exe needs CRLF, not just CR, so if
+ // this is kBEnter then also send kbCtrlJ.
+ if (keypress.equals(kbEnter)) {
+ if (System.getProperty("os.name").startsWith("Windows")
+ && (System.getProperty("jexer.TTerminal.cmdHack",
+ "true").equals("true"))
+ ) {
+ emulator.addUserEvent(new TKeypressEvent(kbCtrlJ));
+ }
+ }
+
+ readEmulatorState();
+ return;
+ }
+
+ // Process is closed, honor "normal" TUI keystrokes
+ super.onKeypress(keypress);
+ }
+
+ /**
+ * Handle mouse press events.
+ *
+ * @param mouse mouse button press event
+ */
+ @Override
+ public void onMouseDown(final TMouseEvent mouse) {
+ if (hideMouseWhenTyping) {
+ typingHidMouse = false;
+ }
+
+ // If the emulator is tracking mouse buttons, it needs to see wheel
+ // events.
+ if (emulator.getMouseProtocol() == ECMA48.MouseProtocol.OFF) {
+ if (mouse.isMouseWheelUp()) {
+ verticalDecrement();
+ return;
+ }
+ if (mouse.isMouseWheelDown()) {
+ verticalIncrement();
+ return;
+ }
+ }
+ if (mouseOnEmulator(mouse)) {
+ emulator.addUserEvent(mouse);
+ readEmulatorState();
+ return;
+ }
+
+ // Emulator didn't consume it, pass it on
+ super.onMouseDown(mouse);
+ }
+
+ /**
+ * Handle mouse release events.
+ *
+ * @param mouse mouse button release event
+ */
+ @Override
+ public void onMouseUp(final TMouseEvent mouse) {
+ if (hideMouseWhenTyping) {
+ typingHidMouse = false;
+ }
+
+ if (mouseOnEmulator(mouse)) {
+ emulator.addUserEvent(mouse);
+ readEmulatorState();
+ return;
+ }
+
+ // Emulator didn't consume it, pass it on
+ super.onMouseUp(mouse);
+ }
+
+ /**
+ * Handle mouse motion events.
+ *
+ * @param mouse mouse motion event
+ */
+ @Override
+ public void onMouseMotion(final TMouseEvent mouse) {
+ if (hideMouseWhenTyping) {
+ typingHidMouse = false;
+ }
+
+ if (mouseOnEmulator(mouse)) {
+ emulator.addUserEvent(mouse);
+ readEmulatorState();
+ return;
+ }
+
+ // Emulator didn't consume it, pass it on
+ super.onMouseMotion(mouse);
+ }
+
+ // ------------------------------------------------------------------------
+ // TTerminalWidget --------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Get the desired window title.
+ *
+ * @return the title
+ */
+ public String getTitle() {
+ return title;
+ }
+
+ /**
+ * Returns true if this window does not want the application-wide mouse
+ * cursor drawn over it.
+ *
+ * @return true if this window does not want the application-wide mouse
+ * cursor drawn over it
+ */
+ public boolean hasHiddenMouse() {
+ return (emulator.hasHiddenMousePointer() || typingHidMouse);
+ }
+
+ /**
+ * See if the terminal is still running.
+ *
+ * @return if true, we are still connected to / reading from the remote
+ * side
+ */
+ public boolean isReading() {
+ return emulator.isReading();
+ }
+
+ /**
+ * Convert a string array to a whitespace-separated string.
+ *
+ * @param array the string array
+ * @return a single string
+ */
+ private String stringArrayToString(final String [] array) {
+ StringBuilder sb = new StringBuilder(array[0].length());
+ for (int i = 0; i < array.length; i++) {
+ sb.append(array[i]);
+ if (i < array.length - 1) {
+ sb.append(' ');
+ }
+ }
+ return sb.toString();
+ }
+
+ /**
+ * Spawn the shell.
+ *
+ * @param command the command line to execute
+ */
+ private void spawnShell(final String [] command) {
+
+ /*
+ System.err.printf("spawnShell(): '%s'\n",
+ stringArrayToString(command));
+ */
+
+ // We will have vScroller for its data fields and mouse event
+ // handling, but do not want to draw it.
+ vScroller = new TVScroller(null, getWidth(), 0, getHeight());
+ vScroller.setVisible(false);
+ setBottomValue(0);
+
+ title = i18n.getString("windowTitle");
+
+ // Assume XTERM
+ ECMA48.DeviceType deviceType = ECMA48.DeviceType.XTERM;
+
+ try {
+ ProcessBuilder pb = new ProcessBuilder(command);
+ Map<String, String> env = pb.environment();
+ env.put("TERM", ECMA48.deviceTypeTerm(deviceType));
+ env.put("LANG", ECMA48.deviceTypeLang(deviceType, "en"));
+ env.put("COLUMNS", "80");
+ env.put("LINES", "24");
+ pb.redirectErrorStream(true);
+ shell = pb.start();
+ emulator = new ECMA48(deviceType, shell.getInputStream(),
+ shell.getOutputStream(), this);
+ } catch (IOException e) {
+ messageBox(i18n.getString("errorLaunchingShellTitle"),
+ MessageFormat.format(i18n.getString("errorLaunchingShellText"),
+ e.getMessage()));
+ }
+
+ // Setup the scroll bars
+ onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
+ getHeight()));
+
+ // Pass the correct text cell width/height to the emulator
+ emulator.setTextWidth(getScreen().getTextWidth());
+ emulator.setTextHeight(getScreen().getTextHeight());
+
+ // Hide mouse when typing option
+ if (System.getProperty("jexer.TTerminal.hideMouseWhenTyping",
+ "true").equals("false")) {
+
+ hideMouseWhenTyping = false;
+ }
+ }
+
+ /**
+ * Terminate the child of the 'script' process used on POSIX. This may
+ * or may not work.
+ */
+ private void terminateShellChildProcess() {
+ int pid = -1;
+ if (shell.getClass().getName().equals("java.lang.UNIXProcess")) {
+ /* get the PID on unix/linux systems */
+ try {
+ Field field = shell.getClass().getDeclaredField("pid");
+ field.setAccessible(true);
+ pid = field.getInt(shell);
+ } catch (Throwable e) {
+ // SQUASH, this didn't work. Just bail out quietly.
+ return;
+ }
+ }
+ if (pid != -1) {
+ // shell.destroy() works successfully at killing this side of
+ // 'script'. But we need to make sure the other side (child
+ // process) is also killed.
+ String [] cmdKillIt = {
+ "pkill", "-P", Integer.toString(pid)
+ };
+ try {
+ Runtime.getRuntime().exec(cmdKillIt);
+ } catch (Throwable e) {
+ // SQUASH, this didn't work. Just bail out quietly.
+ return;
+ }
+ }
+ }
+
+ /**
+ * Hook for subclasses to be notified of the shell termination.
+ */
+ public void onShellExit() {
+ if (getParent() instanceof TTerminalWindow) {
+ ((TTerminalWindow) getParent()).onShellExit();
+ }
+ getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
+ }
+
+ /**
+ * Copy out variables from the emulator that TTerminal has to expose on
+ * screen.
+ */
+ private void readEmulatorState() {
+ // Synchronize against the emulator so we don't stomp on its reader
+ // thread.
+ synchronized (emulator) {
+
+ setCursorX(emulator.getCursorX());
+ setCursorY(emulator.getCursorY()
+ + (getHeight() - emulator.getHeight())
+ - getVerticalValue());
+ setCursorVisible(emulator.isCursorVisible());
+ if (getCursorX() > getWidth()) {
+ setCursorVisible(false);
+ }
+ if ((getCursorY() >= getHeight()) || (getCursorY() < 0)) {
+ setCursorVisible(false);
+ }
+ if (emulator.getScreenTitle().length() > 0) {
+ // Only update the title if the shell is still alive
+ if (shell != null) {
+ title = emulator.getScreenTitle();
+ }
+ }
+
+ // Check to see if the shell has died.
+ if (!emulator.isReading() && (shell != null)) {
+ try {
+ int rc = shell.exitValue();
+ // The emulator exited on its own, all is fine
+ title = MessageFormat.format(i18n.
+ getString("windowTitleCompleted"), title, rc);
+ exitValue = rc;
+ shell = null;
+ emulator.close();
+ onShellExit();
+ } catch (IllegalThreadStateException e) {
+ // The emulator thread has exited, but the shell Process
+ // hasn't figured that out yet. Do nothing, we will see
+ // this in a future tick.
+ }
+ } else if (emulator.isReading() && (shell != null)) {
+ // The shell might be dead, let's check
+ try {
+ int rc = shell.exitValue();
+ // If we got here, the shell died.
+ title = MessageFormat.format(i18n.
+ getString("windowTitleCompleted"), title, rc);
+ exitValue = rc;
+ shell = null;
+ emulator.close();
+ onShellExit();
+ } catch (IllegalThreadStateException e) {
+ // The shell is still running, do nothing.
+ }
+ }
+
+ } // synchronized (emulator)
+ }
+
+ /**
+ * Check if a mouse press/release/motion event coordinate is over the
+ * emulator.
+ *
+ * @param mouse a mouse-based event
+ * @return whether or not the mouse is on the emulator
+ */
+ private boolean mouseOnEmulator(final TMouseEvent mouse) {
+
+ if (!emulator.isReading()) {
+ return false;
+ }
+
+ if ((mouse.getX() >= 0)
+ && (mouse.getX() < getWidth() - 1)
+ && (mouse.getY() >= 0)
+ && (mouse.getY() < getHeight())
+ ) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * 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;
+ }
+
+ /**
+ * Draw glyphs for a double-width or double-height VT100 cell to two
+ * screen cells.
+ *
+ * @param line the line this VT100 cell is in
+ * @param x the X position to draw the left half to
+ * @param y the Y position to draw to
+ * @param cell the cell to draw
+ */
+ private void putDoubleWidthCharXY(final DisplayLine line, final int x,
+ final int y, final Cell cell) {
+
+ int textWidth = getScreen().getTextWidth();
+ int textHeight = getScreen().getTextHeight();
+ boolean cursorBlinkVisible = true;
+
+ if (getScreen() instanceof SwingTerminal) {
+ SwingTerminal terminal = (SwingTerminal) getScreen();
+ cursorBlinkVisible = terminal.getCursorBlinkVisible();
+ } else if (getScreen() instanceof ECMA48Terminal) {
+ ECMA48Terminal terminal = (ECMA48Terminal) getScreen();
+
+ if (!terminal.hasSixel()) {
+ // The backend does not have sixel support, draw this as text
+ // and bail out.
+ putCharXY(x, y, cell);
+ putCharXY(x + 1, y, ' ', cell);
+ return;
+ }
+ cursorBlinkVisible = blinkState;
+ } else {
+ // We don't know how to dray glyphs to this screen, draw them as
+ // text and bail out.
+ putCharXY(x, y, cell);
+ putCharXY(x + 1, y, ' ', cell);
+ return;
+ }
+
+ if ((textWidth != lastTextWidth) || (textHeight != lastTextHeight)) {
+ // Screen size has changed, reset the font.
+ setupFont(textHeight);
+ lastTextWidth = textWidth;
+ lastTextHeight = textHeight;
+ }
+ assert (doubleFont != null);
+
+ BufferedImage image;
+ if (line.getDoubleHeight() == 1) {
+ // Double-height top half: don't draw the underline.
+ Cell newCell = new Cell(cell);
+ newCell.setUnderline(false);
+ image = doubleFont.getImage(newCell, textWidth * 2, textHeight * 2,
+ cursorBlinkVisible);
+ } else {
+ image = doubleFont.getImage(cell, textWidth * 2, textHeight * 2,
+ cursorBlinkVisible);
+ }
+
+ // Now that we have the double-wide glyph drawn, copy the right
+ // pieces of it to the cells.
+ Cell left = new Cell(cell);
+ Cell right = new Cell(cell);
+ right.setChar(' ');
+ BufferedImage leftImage = null;
+ BufferedImage rightImage = null;
+ /*
+ System.err.println("image " + image + " textWidth " + textWidth +
+ " textHeight " + textHeight);
+ */
+
+ switch (line.getDoubleHeight()) {
+ case 1:
+ // Top half double height
+ leftImage = image.getSubimage(0, 0, textWidth, textHeight);
+ rightImage = image.getSubimage(textWidth, 0, textWidth, textHeight);
+ break;
+ case 2:
+ // Bottom half double height
+ leftImage = image.getSubimage(0, textHeight, textWidth, textHeight);
+ rightImage = image.getSubimage(textWidth, textHeight,
+ textWidth, textHeight);
+ break;
+ default:
+ // Either single height double-width, or error fallback
+ BufferedImage wideImage = new BufferedImage(textWidth * 2,
+ textHeight, BufferedImage.TYPE_INT_ARGB);
+ Graphics2D grWide = wideImage.createGraphics();
+ grWide.drawImage(image, 0, 0, wideImage.getWidth(),
+ wideImage.getHeight(), null);
+ grWide.dispose();
+ leftImage = wideImage.getSubimage(0, 0, textWidth, textHeight);
+ rightImage = wideImage.getSubimage(textWidth, 0, textWidth,
+ textHeight);
+ break;
+ }
+ left.setImage(leftImage);
+ right.setImage(rightImage);
+ // Since we have image data, ditch the character here. Otherwise, a
+ // drawBoxShadow() over the terminal window will show the characters
+ // which looks wrong.
+ left.setChar(' ');
+ right.setChar(' ');
+ putCharXY(x, y, left);
+ putCharXY(x + 1, y, right);
+ }
+
+ /**
+ * Set up the double-width font.
+ *
+ * @param fontSize the size of font to request for the single-width font.
+ * The double-width font will be 2x this value.
+ */
+ private void setupFont(final int fontSize) {
+ doubleFont = GlyphMaker.getInstance(fontSize * 2);
+
+ // Special case: the ECMA48 backend needs to have a timer to drive
+ // its blink state.
+ if (getScreen() instanceof jexer.backend.ECMA48Terminal) {
+ if (!haveTimer) {
+ // Blink every 500 millis.
+ long millis = 500;
+ getApplication().addTimer(millis, true,
+ new TAction() {
+ public void DO() {
+ blinkState = !blinkState;
+ getApplication().doRepaint();
+ }
+ }
+ );
+ haveTimer = true;
+ }
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // DisplayListener --------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Called by emulator when fresh data has come in.
+ */
+ public void displayChanged() {
+ dirty = true;
+ getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
+ }
+
+ /**
+ * Function to call to obtain the display width.
+ *
+ * @return the number of columns in the display
+ */
+ public int getDisplayWidth() {
+ if (ptypipe) {
+ return getWidth();
+ }
+ return 80;
+ }
+
+ /**
+ * Function to call to obtain the display height.
+ *
+ * @return the number of rows in the display
+ */
+ public int getDisplayHeight() {
+ if (ptypipe) {
+ return getHeight();
+ }
+ return 24;
+ }
+
+}
/**
* TTerminalWindow exposes a ECMA-48 / ANSI X3.64 style terminal in a window.
*/
-public class TTerminalWindow extends TScrollableWindow
- implements DisplayListener {
+public class TTerminalWindow extends TScrollableWindow {
/**
* Translated strings.
// ------------------------------------------------------------------------
/**
- * The emulator.
+ * The terminal.
*/
- private ECMA48 emulator;
-
- /**
- * The Process created by the shell spawning constructor.
- */
- private Process shell;
-
- /**
- * If true, we are using the ptypipe utility to support dynamic window
- * resizing. ptypipe is available at
- * https://gitlab.com/klamonte/ptypipe .
- */
- private boolean ptypipe = false;
+ private TTerminalWidget terminal;
/**
* If true, close the window when the shell exits.
*/
private boolean closeOnExit = false;
- /**
- * Double-height font.
- */
- private GlyphMaker doubleFont;
-
- /**
- * Last text width value.
- */
- private int lastTextWidth = -1;
-
- /**
- * Last text height value.
- */
- private int lastTextHeight = -1;
-
- /**
- * The blink state, used only by ECMA48 backend and when double-width
- * chars must be drawn.
- */
- private boolean blinkState = true;
-
- /**
- * Timer flag, used only by ECMA48 backend and when double-width chars
- * must be drawn.
- */
- private boolean haveTimer = false;
-
- /**
- * The last seen scrollback lines.
- */
- private List<DisplayLine> scrollback;
-
- /**
- * The last seen display lines.
- */
- private List<DisplayLine> display;
-
- /**
- * If true, the display has changed and needs updating.
- */
- private volatile boolean dirty = true;
-
- /**
- * Time that the display was last updated.
- */
- private long lastUpdateTime = 0;
-
- /**
- * If true, hide the mouse after typing a keystroke.
- */
- private boolean hideMouseWhenTyping = true;
-
- /**
- * If true, the mouse should not be displayed because a keystroke was
- * typed.
- */
- private boolean typingHidMouse = false;
-
// ------------------------------------------------------------------------
// Constructors -----------------------------------------------------------
// ------------------------------------------------------------------------
80 + 2, 24 + 2, flags);
this.closeOnExit = closeOnExit;
+ vScroller = new TVScroller(this, getWidth() - 2, 0, getHeight() - 2);
+
+ // Claim the keystrokes the emulator will need.
+ addShortcutKeys();
- String [] fullCommand;
+ // Add shortcut text
+ newStatusBar(i18n.getString("statusBarRunning"));
- // Spawn a shell and pass its I/O to the other constructor.
- if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
- && (System.getProperty("jexer.TTerminal.ptypipe").
- equals("true"))
- ) {
- ptypipe = true;
- fullCommand = new String[command.length + 1];
- fullCommand[0] = "ptypipe";
- System.arraycopy(command, 0, fullCommand, 1, command.length);
- } else if (System.getProperty("os.name").startsWith("Windows")) {
- fullCommand = new String[3];
- fullCommand[0] = "cmd";
- fullCommand[1] = "/c";
- fullCommand[2] = stringArrayToString(command);
- } else if (System.getProperty("os.name").startsWith("Mac")) {
- fullCommand = new String[6];
- fullCommand[0] = "script";
- fullCommand[1] = "-q";
- fullCommand[2] = "-F";
- fullCommand[3] = "/dev/null";
- fullCommand[4] = "-c";
- fullCommand[5] = stringArrayToString(command);
- } else {
- // Default: behave like Linux
- fullCommand = new String[5];
- fullCommand[0] = "script";
- fullCommand[1] = "-fqe";
- fullCommand[2] = "/dev/null";
- fullCommand[3] = "-c";
- fullCommand[4] = stringArrayToString(command);
- }
- spawnShell(fullCommand);
+ // Spin it up
+ terminal = new TTerminalWidget(this, 0, 0);
}
/**
80 + 2, 24 + 2, flags);
this.closeOnExit = closeOnExit;
+ vScroller = new TVScroller(this, getWidth() - 2, 0, getHeight() - 2);
- if (System.getProperty("jexer.TTerminal.shell") != null) {
- String shell = System.getProperty("jexer.TTerminal.shell");
- if (shell.trim().startsWith("ptypipe")) {
- ptypipe = true;
- }
- spawnShell(shell.split("\\s+"));
- return;
- }
-
- String cmdShellWindows = "cmd.exe";
-
- // You cannot run a login shell in a bare Process interactively, due
- // to libc's behavior of buffering when stdin/stdout aren't a tty.
- // Use 'script' instead to run a shell in a pty. And because BSD and
- // GNU differ on the '-f' vs '-F' flags, we need two different
- // commands. Lovely.
- String cmdShellGNU = "script -fqe /dev/null";
- String cmdShellBSD = "script -q -F /dev/null";
+ // Claim the keystrokes the emulator will need.
+ addShortcutKeys();
- // ptypipe is another solution that permits dynamic window resizing.
- String cmdShellPtypipe = "ptypipe /bin/bash --login";
+ // Add shortcut text
+ newStatusBar(i18n.getString("statusBarRunning"));
- // Spawn a shell and pass its I/O to the other constructor.
- if ((System.getProperty("jexer.TTerminal.ptypipe") != null)
- && (System.getProperty("jexer.TTerminal.ptypipe").
- equals("true"))
- ) {
- ptypipe = true;
- spawnShell(cmdShellPtypipe.split("\\s+"));
- } else if (System.getProperty("os.name").startsWith("Windows")) {
- spawnShell(cmdShellWindows.split("\\s+"));
- } else if (System.getProperty("os.name").startsWith("Mac")) {
- spawnShell(cmdShellBSD.split("\\s+"));
- } else if (System.getProperty("os.name").startsWith("Linux")) {
- spawnShell(cmdShellGNU.split("\\s+"));
- } else {
- // When all else fails, assume GNU.
- spawnShell(cmdShellGNU.split("\\s+"));
- }
+ // Spin it up
+ terminal = new TTerminalWidget(this, 0, 0);
}
// ------------------------------------------------------------------------
*/
@Override
public void draw() {
- int width = getDisplayWidth();
- boolean syncEmulator = false;
- if ((System.currentTimeMillis() - lastUpdateTime >= 25)
- && (dirty == true)
- ) {
- // Too much time has passed, draw it all.
- syncEmulator = true;
- } else if (emulator.isReading() && (dirty == false)) {
- // Wait until the emulator has brought more data in.
- syncEmulator = false;
- } else if (!emulator.isReading() && (dirty == true)) {
- // The emulator won't receive more data, update the display.
- syncEmulator = true;
- }
-
- if ((syncEmulator == true)
- || (scrollback == null)
- || (display == null)
- ) {
- // We want to minimize the amount of time we have the emulator
- // locked. Grab a copy of its display.
- synchronized (emulator) {
- // Update the scroll bars
- reflowData();
-
- if ((scrollback == null) || emulator.isReading()) {
- scrollback = copyBuffer(emulator.getScrollbackBuffer());
- display = copyBuffer(emulator.getDisplayBuffer());
- }
- width = emulator.getWidth();
- }
- dirty = false;
- }
-
- // Draw the box using my superclass
+ setTitle(terminal.getTitle());
+ reflowData();
super.draw();
-
- // Put together the visible rows
- int visibleHeight = getHeight() - 2;
- int visibleBottom = scrollback.size() + display.size()
- + getVerticalValue();
- assert (visibleBottom >= 0);
-
- List<DisplayLine> preceedingBlankLines = new ArrayList<DisplayLine>();
- int visibleTop = visibleBottom - visibleHeight;
- if (visibleTop < 0) {
- for (int i = visibleTop; i < 0; i++) {
- preceedingBlankLines.add(emulator.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));
-
- visibleHeight -= visibleLines.size();
- assert (visibleHeight >= 0);
-
- // Now draw the emulator screen
- int row = 1;
- for (DisplayLine line: visibleLines) {
- int widthMax = width;
- if (line.isDoubleWidth()) {
- widthMax /= 2;
- }
- if (widthMax > getWidth() - 2) {
- widthMax = getWidth() - 2;
- }
- for (int i = 0; i < widthMax; i++) {
- Cell ch = line.charAt(i);
-
- if (ch.isImage()) {
- putCharXY(i + 1, row, ch);
- continue;
- }
-
- Cell newCell = new Cell(ch);
- boolean reverse = line.isReverseColor() ^ ch.isReverse();
- newCell.setReverse(false);
- if (reverse) {
- if (ch.getForeColorRGB() < 0) {
- newCell.setBackColor(ch.getForeColor());
- newCell.setBackColorRGB(-1);
- } else {
- newCell.setBackColorRGB(ch.getForeColorRGB());
- }
- if (ch.getBackColorRGB() < 0) {
- newCell.setForeColor(ch.getBackColor());
- newCell.setForeColorRGB(-1);
- } else {
- newCell.setForeColorRGB(ch.getBackColorRGB());
- }
- }
- if (line.isDoubleWidth()) {
- putDoubleWidthCharXY(line, (i * 2) + 1, row, newCell);
- } else {
- putCharXY(i + 1, row, newCell);
- }
- }
- row++;
- if (row == getHeight() - 1) {
- // Don't overwrite the box edge
- break;
- }
- }
- CellAttributes background = new CellAttributes();
- // Fill in the blank lines on bottom
- for (int i = 0; i < visibleHeight; i++) {
- hLineXY(1, i + row, getWidth() - 2, ' ', background);
- }
-
- }
-
- /**
- * Handle window close.
- */
- @Override
- public void onClose() {
- emulator.close();
- if (shell != null) {
- terminateShellChildProcess();
- shell.destroy();
- shell = null;
- }
}
/**
*/
@Override
public void onResize(final TResizeEvent resize) {
+ if (resize.getType() == TResizeEvent.Type.WIDGET) {
+ terminal.onResize(new TResizeEvent(TResizeEvent.Type.WIDGET,
+ getWidth() - 2, getHeight() - 2));
- // Synchronize against the emulator so we don't stomp on its reader
- // thread.
- synchronized (emulator) {
-
- if (resize.getType() == TResizeEvent.Type.WIDGET) {
- // Resize the scroll bars
- reflowData();
- placeScrollbars();
-
- // Get out of scrollback
- setVerticalValue(0);
-
- if (ptypipe) {
- emulator.setWidth(getWidth() - 2);
- emulator.setHeight(getHeight() - 2);
-
- emulator.writeRemote("\033[8;" + (getHeight() - 2) + ";" +
- (getWidth() - 2) + "t");
- }
- }
- return;
-
- } // synchronized (emulator)
+ // Resize the scroll bars
+ reflowData();
+ placeScrollbars();
+ }
+ return;
}
/**
*/
@Override
public void reflowData() {
-
- // Synchronize against the emulator so we don't stomp on its reader
- // thread.
- synchronized (emulator) {
-
- // Pull cursor information
- readEmulatorState();
-
- // Vertical scrollbar
- setTopValue(getHeight() - 2
- - (emulator.getScrollbackBuffer().size()
- + emulator.getDisplayBuffer().size()));
- setVerticalBigChange(getHeight() - 2);
-
- } // synchronized (emulator)
+ // Vertical scrollbar
+ terminal.reflowData();
+ setTopValue(terminal.getTopValue());
+ setBottomValue(terminal.getBottomValue());
+ setVerticalBigChange(terminal.getVerticalBigChange());
+ setVerticalValue(terminal.getVerticalValue());
}
/**
*/
@Override
public void onKeypress(final TKeypressEvent keypress) {
- if (hideMouseWhenTyping) {
- typingHidMouse = true;
- }
-
- // Scrollback up/down
- if (keypress.equals(kbShiftPgUp)
- || keypress.equals(kbCtrlPgUp)
- || keypress.equals(kbAltPgUp)
- ) {
- bigVerticalDecrement();
- return;
- }
- if (keypress.equals(kbShiftPgDn)
- || keypress.equals(kbCtrlPgDn)
- || keypress.equals(kbAltPgDn)
- ) {
- bigVerticalIncrement();
- return;
- }
-
- if (emulator.isReading()) {
- // Get out of scrollback
- setVerticalValue(0);
- emulator.addUserEvent(keypress);
-
- // UGLY HACK TIME! cmd.exe needs CRLF, not just CR, so if
- // this is kBEnter then also send kbCtrlJ.
- if (keypress.equals(kbEnter)) {
- if (System.getProperty("os.name").startsWith("Windows")
- && (System.getProperty("jexer.TTerminal.cmdHack",
- "true").equals("true"))
- ) {
- emulator.addUserEvent(new TKeypressEvent(kbCtrlJ));
- }
- }
-
- readEmulatorState();
- return;
+ if (terminal.isReading()) {
+ terminal.onKeypress(keypress);
+ } else {
+ super.onKeypress(keypress);
}
-
- // Process is closed, honor "normal" TUI keystrokes
- super.onKeypress(keypress);
}
/**
return;
}
- if (hideMouseWhenTyping) {
- typingHidMouse = false;
- }
-
- // If the emulator is tracking mouse buttons, it needs to see wheel
- // events.
- if (emulator.getMouseProtocol() == ECMA48.MouseProtocol.OFF) {
- if (mouse.isMouseWheelUp()) {
- verticalDecrement();
- return;
- }
- if (mouse.isMouseWheelDown()) {
- verticalIncrement();
- return;
- }
- }
- if (mouseOnEmulator(mouse)) {
- mouse.setX(mouse.getX() - 1);
- mouse.setY(mouse.getY() - 1);
- emulator.addUserEvent(mouse);
- readEmulatorState();
- return;
- }
-
- // Emulator didn't consume it, pass it on
super.onMouseDown(mouse);
}
return;
}
- if (hideMouseWhenTyping) {
- typingHidMouse = false;
- }
-
- if (mouseOnEmulator(mouse)) {
- mouse.setX(mouse.getX() - 1);
- mouse.setY(mouse.getY() - 1);
- emulator.addUserEvent(mouse);
- readEmulatorState();
- return;
- }
-
- // Emulator didn't consume it, pass it on
super.onMouseUp(mouse);
}
return;
}
- if (hideMouseWhenTyping) {
- typingHidMouse = false;
- }
-
- if (mouseOnEmulator(mouse)) {
- mouse.setX(mouse.getX() - 1);
- mouse.setY(mouse.getY() - 1);
- emulator.addUserEvent(mouse);
- readEmulatorState();
- return;
- }
-
- // Emulator didn't consume it, pass it on
super.onMouseMotion(mouse);
}
*/
@Override
public boolean hasHiddenMouse() {
- return (super.hasHiddenMouse() || typingHidMouse);
+ return terminal.hasHiddenMouse();
}
/**
addShortcutKeypress(kbAltZ);
}
- /**
- * Convert a string array to a whitespace-separated string.
- *
- * @param array the string array
- * @return a single string
- */
- private String stringArrayToString(final String [] array) {
- StringBuilder sb = new StringBuilder(array[0].length());
- for (int i = 0; i < array.length; i++) {
- sb.append(array[i]);
- if (i < array.length - 1) {
- sb.append(' ');
- }
- }
- return sb.toString();
- }
-
- /**
- * Spawn the shell.
- *
- * @param command the command line to execute
- */
- private void spawnShell(final String [] command) {
-
- /*
- System.err.printf("spawnShell(): '%s'\n",
- stringArrayToString(command));
- */
-
- vScroller = new TVScroller(this, getWidth() - 2, 0, getHeight() - 2);
- setBottomValue(0);
-
- // Assume XTERM
- ECMA48.DeviceType deviceType = ECMA48.DeviceType.XTERM;
-
- try {
- ProcessBuilder pb = new ProcessBuilder(command);
- Map<String, String> env = pb.environment();
- env.put("TERM", ECMA48.deviceTypeTerm(deviceType));
- env.put("LANG", ECMA48.deviceTypeLang(deviceType, "en"));
- env.put("COLUMNS", "80");
- env.put("LINES", "24");
- pb.redirectErrorStream(true);
- shell = pb.start();
- emulator = new ECMA48(deviceType, shell.getInputStream(),
- shell.getOutputStream(), this);
- } catch (IOException e) {
- messageBox(i18n.getString("errorLaunchingShellTitle"),
- MessageFormat.format(i18n.getString("errorLaunchingShellText"),
- e.getMessage()));
- }
-
- // Setup the scroll bars
- onResize(new TResizeEvent(TResizeEvent.Type.WIDGET, getWidth(),
- getHeight()));
-
- // Claim the keystrokes the emulator will need.
- addShortcutKeys();
-
- // Add shortcut text
- newStatusBar(i18n.getString("statusBarRunning"));
-
- // Pass the correct text cell width/height to the emulator
- emulator.setTextWidth(getScreen().getTextWidth());
- emulator.setTextHeight(getScreen().getTextHeight());
-
- // Hide mouse when typing option
- if (System.getProperty("jexer.TTerminal.hideMouseWhenTyping",
- "true").equals("false")) {
-
- hideMouseWhenTyping = false;
- }
- }
-
- /**
- * Terminate the child of the 'script' process used on POSIX. This may
- * or may not work.
- */
- private void terminateShellChildProcess() {
- int pid = -1;
- if (shell.getClass().getName().equals("java.lang.UNIXProcess")) {
- /* get the PID on unix/linux systems */
- try {
- Field field = shell.getClass().getDeclaredField("pid");
- field.setAccessible(true);
- pid = field.getInt(shell);
- } catch (Throwable e) {
- // SQUASH, this didn't work. Just bail out quietly.
- return;
- }
- }
- if (pid != -1) {
- // shell.destroy() works successfully at killing this side of
- // 'script'. But we need to make sure the other side (child
- // process) is also killed.
- String [] cmdKillIt = {
- "pkill", "-P", Integer.toString(pid)
- };
- try {
- Runtime.getRuntime().exec(cmdKillIt);
- } catch (Throwable e) {
- // SQUASH, this didn't work. Just bail out quietly.
- return;
- }
- }
- }
-
/**
* Hook for subclasses to be notified of the shell termination.
*/
if (closeOnExit) {
close();
}
+ clearShortcutKeypresses();
getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
}
- /**
- * Copy out variables from the emulator that TTerminal has to expose on
- * screen.
- */
- private void readEmulatorState() {
- // Synchronize against the emulator so we don't stomp on its reader
- // thread.
- synchronized (emulator) {
- setHiddenMouse(emulator.hasHiddenMousePointer());
-
- setCursorX(emulator.getCursorX() + 1);
- setCursorY(emulator.getCursorY() + 1
- + (getHeight() - 2 - emulator.getHeight())
- - getVerticalValue());
- setCursorVisible(emulator.isCursorVisible());
- if (getCursorX() > getWidth() - 2) {
- setCursorVisible(false);
- }
- if ((getCursorY() > getHeight() - 2) || (getCursorY() < 0)) {
- setCursorVisible(false);
- }
- if (emulator.getScreenTitle().length() > 0) {
- // Only update the title if the shell is still alive
- if (shell != null) {
- setTitle(emulator.getScreenTitle());
- }
- }
-
- // Check to see if the shell has died.
- if (!emulator.isReading() && (shell != null)) {
- try {
- int rc = shell.exitValue();
- // The emulator exited on its own, all is fine
- setTitle(MessageFormat.format(i18n.
- getString("windowTitleCompleted"), getTitle(), rc));
- shell = null;
- emulator.close();
- clearShortcutKeypresses();
- statusBar.setText(MessageFormat.format(i18n.
- getString("statusBarCompleted"), rc));
- onShellExit();
- } catch (IllegalThreadStateException e) {
- // The emulator thread has exited, but the shell Process
- // hasn't figured that out yet. Do nothing, we will see
- // this in a future tick.
- }
- } else if (emulator.isReading() && (shell != null)) {
- // The shell might be dead, let's check
- try {
- int rc = shell.exitValue();
- // If we got here, the shell died.
- setTitle(MessageFormat.format(i18n.
- getString("windowTitleCompleted"), getTitle(), rc));
- shell = null;
- emulator.close();
- clearShortcutKeypresses();
- statusBar.setText(MessageFormat.format(i18n.
- getString("statusBarCompleted"), rc));
- onShellExit();
- } catch (IllegalThreadStateException e) {
- // The shell is still running, do nothing.
- }
- }
-
- } // synchronized (emulator)
- }
-
- /**
- * Check if a mouse press/release/motion event coordinate is over the
- * emulator.
- *
- * @param mouse a mouse-based event
- * @return whether or not the mouse is on the emulator
- */
- private boolean mouseOnEmulator(final TMouseEvent mouse) {
-
- if (!emulator.isReading()) {
- return false;
- }
-
- if ((mouse.getAbsoluteX() >= getAbsoluteX() + 1)
- && (mouse.getAbsoluteX() < getAbsoluteX() + getWidth() - 1)
- && (mouse.getAbsoluteY() >= getAbsoluteY() + 1)
- && (mouse.getAbsoluteY() < getAbsoluteY() + getHeight() - 1)
- ) {
- return true;
- }
- return false;
- }
-
- /**
- * 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;
- }
-
- /**
- * Draw glyphs for a double-width or double-height VT100 cell to two
- * screen cells.
- *
- * @param line the line this VT100 cell is in
- * @param x the X position to draw the left half to
- * @param y the Y position to draw to
- * @param cell the cell to draw
- */
- private void putDoubleWidthCharXY(final DisplayLine line, final int x,
- final int y, final Cell cell) {
-
- int textWidth = getScreen().getTextWidth();
- int textHeight = getScreen().getTextHeight();
- boolean cursorBlinkVisible = true;
-
- if (getScreen() instanceof SwingTerminal) {
- SwingTerminal terminal = (SwingTerminal) getScreen();
- cursorBlinkVisible = terminal.getCursorBlinkVisible();
- } else if (getScreen() instanceof ECMA48Terminal) {
- ECMA48Terminal terminal = (ECMA48Terminal) getScreen();
-
- if (!terminal.hasSixel()) {
- // The backend does not have sixel support, draw this as text
- // and bail out.
- putCharXY(x, y, cell);
- putCharXY(x + 1, y, ' ', cell);
- return;
- }
- cursorBlinkVisible = blinkState;
- } else {
- // We don't know how to dray glyphs to this screen, draw them as
- // text and bail out.
- putCharXY(x, y, cell);
- putCharXY(x + 1, y, ' ', cell);
- return;
- }
-
- if ((textWidth != lastTextWidth) || (textHeight != lastTextHeight)) {
- // Screen size has changed, reset the font.
- setupFont(textHeight);
- lastTextWidth = textWidth;
- lastTextHeight = textHeight;
- }
- assert (doubleFont != null);
-
- BufferedImage image;
- if (line.getDoubleHeight() == 1) {
- // Double-height top half: don't draw the underline.
- Cell newCell = new Cell(cell);
- newCell.setUnderline(false);
- image = doubleFont.getImage(newCell, textWidth * 2, textHeight * 2,
- cursorBlinkVisible);
- } else {
- image = doubleFont.getImage(cell, textWidth * 2, textHeight * 2,
- cursorBlinkVisible);
- }
-
- // Now that we have the double-wide glyph drawn, copy the right
- // pieces of it to the cells.
- Cell left = new Cell(cell);
- Cell right = new Cell(cell);
- right.setChar(' ');
- BufferedImage leftImage = null;
- BufferedImage rightImage = null;
- /*
- System.err.println("image " + image + " textWidth " + textWidth +
- " textHeight " + textHeight);
- */
-
- switch (line.getDoubleHeight()) {
- case 1:
- // Top half double height
- leftImage = image.getSubimage(0, 0, textWidth, textHeight);
- rightImage = image.getSubimage(textWidth, 0, textWidth, textHeight);
- break;
- case 2:
- // Bottom half double height
- leftImage = image.getSubimage(0, textHeight, textWidth, textHeight);
- rightImage = image.getSubimage(textWidth, textHeight,
- textWidth, textHeight);
- break;
- default:
- // Either single height double-width, or error fallback
- BufferedImage wideImage = new BufferedImage(textWidth * 2,
- textHeight, BufferedImage.TYPE_INT_ARGB);
- Graphics2D grWide = wideImage.createGraphics();
- grWide.drawImage(image, 0, 0, wideImage.getWidth(),
- wideImage.getHeight(), null);
- grWide.dispose();
- leftImage = wideImage.getSubimage(0, 0, textWidth, textHeight);
- rightImage = wideImage.getSubimage(textWidth, 0, textWidth,
- textHeight);
- break;
- }
- left.setImage(leftImage);
- right.setImage(rightImage);
- // Since we have image data, ditch the character here. Otherwise, a
- // drawBoxShadow() over the terminal window will show the characters
- // which looks wrong.
- left.setChar(' ');
- right.setChar(' ');
- putCharXY(x, y, left);
- putCharXY(x + 1, y, right);
- }
-
- /**
- * Set up the double-width font.
- *
- * @param fontSize the size of font to request for the single-width font.
- * The double-width font will be 2x this value.
- */
- private void setupFont(final int fontSize) {
- doubleFont = GlyphMaker.getInstance(fontSize * 2);
-
- // Special case: the ECMA48 backend needs to have a timer to drive
- // its blink state.
- if (getScreen() instanceof jexer.backend.ECMA48Terminal) {
- if (!haveTimer) {
- // Blink every 500 millis.
- long millis = 500;
- getApplication().addTimer(millis, true,
- new TAction() {
- public void DO() {
- blinkState = !blinkState;
- getApplication().doRepaint();
- }
- }
- );
- haveTimer = true;
- }
- }
- }
-
- // ------------------------------------------------------------------------
- // DisplayListener --------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Called by emulator when fresh data has come in.
- */
- public void displayChanged() {
- dirty = true;
- getApplication().postEvent(new TMenuEvent(TMenu.MID_REPAINT));
- }
-
- /**
- * Function to call to obtain the display width.
- *
- * @return the number of columns in the display
- */
- public int getDisplayWidth() {
- if (ptypipe) {
- return getWidth() - 2;
- }
- return 80;
- }
-
- /**
- * Function to call to obtain the display height.
- *
- * @return the number of rows in the display
- */
- public int getDisplayHeight() {
- if (ptypipe) {
- return getHeight() - 2;
- }
- return 24;
- }
-
}
git://git.nikiroo.be / fanfix-jexer.git / commitdiff