+++ /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.*;
-
-/**
- * TTerminalWidget 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 = "";
-
- /**
- * Action to perform when the terminal exits.
- */
- private TAction closeAction = null;
-
- // ------------------------------------------------------------------------
- // 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) {
-
- this(parent, x, y, command, null);
- }
-
- /**
- * 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
- * @param closeAction action to perform when the shell sxits
- */
- public TTerminalWidget(final TWidget parent, final int x, final int y,
- final String [] command, final TAction closeAction) {
-
- this(parent, x, y, 80, 24, command, closeAction);
- }
-
- /**
- * Public constructor spawns a custom command line.
- *
- * @param parent parent widget
- * @param x column relative to parent
- * @param y row relative to parent
- * @param width width of widget
- * @param height height of widget
- * @param command the command line to execute
- * @param closeAction action to perform when the shell sxits
- */
- public TTerminalWidget(final TWidget parent, final int x, final int y,
- final int width, final int height, final String [] command,
- final TAction closeAction) {
-
- super(parent, x, y, width, height);
-
- this.closeAction = closeAction;
-
- 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) {
- this(parent, x, y, (TAction) null);
- }
-
- /**
- * Public constructor spawns a shell.
- *
- * @param parent parent widget
- * @param x column relative to parent
- * @param y row relative to parent
- * @param closeAction action to perform when the shell sxits
- */
- public TTerminalWidget(final TWidget parent, final int x, final int y,
- final TAction closeAction) {
-
- this(parent, x, y, 80, 24, closeAction);
- }
-
- /**
- * Public constructor spawns a shell.
- *
- * @param parent parent widget
- * @param x column relative to parent
- * @param y row relative to parent
- * @param width width of widget
- * @param height height of widget
- * @param closeAction action to perform when the shell sxits
- */
- public TTerminalWidget(final TWidget parent, final int x, final int y,
- final int width, final int height, final TAction closeAction) {
-
- super(parent, x, y, width, height);
-
- this.closeAction = closeAction;
-
- 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;
- }
-
- // 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 widget 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) {
- // Let TWidget set my size.
- super.onResize(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");
- }
-
- // Pass the correct text cell width/height to the emulator
- if (getScreen() != null) {
- emulator.setTextWidth(getScreen().getTextWidth());
- emulator.setTextHeight(getScreen().getTextHeight());
- }
- }
- 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 widget does not want the application-wide mouse
- * cursor drawn over it.
- *
- * @return true if this widget 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()));
-
- // 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() {
- TApplication app = getApplication();
- if (app != null) {
- app.invokeLater(new Runnable() {
- public void run() {
- if (closeAction != null) {
- closeAction.DO(TTerminalWidget.this);
- }
- if (getApplication() != null) {
- 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;
- }
-
-}
git://git.nikiroo.be / nikiroo-utils.git / blobdiff