org.jline.utils.InfoCmp Java Examples

private void drawStatusBar(int rowsInBuffer) {
  terminal.puts(InfoCmp.Capability.save_cursor);
  terminal.puts(InfoCmp.Capability.cursor_address, height - 1, 0);
  AttributedStyle statusBarStyle = AttributedStyle.DEFAULT.background(AttributedStyle.WHITE)
          .foreground(AttributedStyle.BLACK);
  AttributedStringBuilder attrBuilder = new AttributedStringBuilder()
          .style(statusBarStyle.bold().italic())
          .append("Q")
          .style(statusBarStyle)
          .append(": Quit     ")
          .style(statusBarStyle.bold().italic())
          .append("SPACE")
          .style(statusBarStyle)
          .append(": Pause/Resume     ")
          .append(String.valueOf(rowsInBuffer) + " rows in buffer     ");
  if (paused) {
    attrBuilder.style(statusBarStyle.bold().foreground(AttributedStyle.RED).blink())
            .append("PAUSED");
  }
  String statusBarText = attrBuilder.toAnsi();
  terminal.writer().print(statusBarText);
  terminal.flush();
  terminal.puts(InfoCmp.Capability.restore_cursor);
}
 

public void clearTerminal() {
	if (isPlainTerminal()) {
		for (int i = 0; i < 200; i++) { // large number of empty lines
			terminal.writer().println();
		}
	} else {
		terminal.puts(InfoCmp.Capability.clear_screen);
	}
}
 

public void clearTerminal() {
	if (isPlainTerminal()) {
		for (int i = 0; i < 200; i++) { // large number of empty lines
			terminal.writer().println();
		}
	} else {
		terminal.puts(InfoCmp.Capability.clear_screen);
	}
}
 

private void restoreTerminal(TerminalStatus status) {
  // Signal handlers
  terminal.handle(Terminal.Signal.INT, status.handlerInt);
  terminal.handle(Terminal.Signal.QUIT, status.handlerQuit);
  terminal.handle(Terminal.Signal.TSTP, status.handlerTstp);
  terminal.handle(Terminal.Signal.CONT, status.handlerCont);
  terminal.handle(Terminal.Signal.WINCH, status.handlerWinch);

  // Attributes
  terminal.setAttributes(status.attributes);

  // Capability
  terminal.puts(InfoCmp.Capability.exit_ca_mode);
  terminal.puts(InfoCmp.Capability.cursor_visible);
}
 

public void clearTerminal() {
	if (isPlainTerminal()) {
		for (int i = 0; i < 200; i++) { // large number of empty lines
			terminal.writer().println();
		}
	} else {
		terminal.puts(InfoCmp.Capability.clear_screen);
	}
}
 

@Override
public void puts(InfoCmp.Capability capability) {
  terminal.puts(capability);
}
 

@Override
public void execute(String commandStrippedLine) throws IOException {
  puts(InfoCmp.Capability.clear_screen);
  flush();
}
 

@Override
protected void puts(InfoCmp.Capability capability) {
  // Ignore
}
 

@Override
public void bell() {
    terminal.puts(InfoCmp.Capability.bell);
    //reader.beep();
}
 

@Override
public void clear() {
    terminal.puts(InfoCmp.Capability.clear_screen);
}
 

@Override
public boolean puts(InfoCmp.Capability capability, Object... objects) {
    return delegate().puts(capability, objects);
}
 

@Override
public boolean getBooleanCapability(InfoCmp.Capability capability) {
    return delegate().getBooleanCapability(capability);
}
 

@Override
public Integer getNumericCapability(InfoCmp.Capability capability) {
    return delegate().getNumericCapability(capability);
}
 

@Override
public String getStringCapability(InfoCmp.Capability capability) {
    return delegate().getStringCapability(capability);
}
 

private void clearScreen() {
  terminal.puts(InfoCmp.Capability.clear_screen);
}
 

private void clearStatusBar() {
  terminal.puts(InfoCmp.Capability.save_cursor);
  terminal.puts(InfoCmp.Capability.cursor_address, height - 1, 0);
  terminal.puts(InfoCmp.Capability.delete_line, height - 1, 0);
  terminal.puts(InfoCmp.Capability.restore_cursor);
}
 

private TerminalStatus setupTerminal() {
  TerminalStatus prevStatus = new TerminalStatus();

  // Signal handlers
  prevStatus.handlerInt = terminal.handle(Terminal.Signal.INT, this::handleSignal);
  prevStatus.handlerQuit = terminal.handle(Terminal.Signal.QUIT, this::handleSignal);
  prevStatus.handlerTstp = terminal.handle(Terminal.Signal.TSTP, this::handleSignal);
  prevStatus.handlerCont = terminal.handle(Terminal.Signal.CONT, this::handleSignal);
  prevStatus.handlerWinch = terminal.handle(Terminal.Signal.WINCH, this::handleSignal);

  // Attributes
  prevStatus.attributes = terminal.getAttributes();
  Attributes newAttributes = new Attributes(prevStatus.attributes);
  // (003, ETX, Ctrl-C, or also 0177, DEL, rubout) Interrupt char‐
  // acter (INTR).  Send a SIGINT signal.  Recognized when ISIG is
  // set, and then not passed as input.
  newAttributes.setControlChar(Attributes.ControlChar.VINTR, 0);
  // (034, FS, Ctrl-\) Quit character (QUIT).  Send SIGQUIT signal.
  // Recognized when ISIG is set, and then not passed as input.
  // newAttributes.setControlChar(Attributes.ControlChar.VQUIT, 0);
  newAttributes.setControlChar(Attributes.ControlChar.VMIN, 1);
  newAttributes.setControlChar(Attributes.ControlChar.VTIME, 0);
  // Enables signals and SIGTTOU signal to the process group of a background
  // process which tries to write to our terminal
  newAttributes.setLocalFlags(
          EnumSet.of(Attributes.LocalFlag.ISIG, Attributes.LocalFlag.TOSTOP), true);
  // No canonical mode, no echo, and no implementation-defined input processing
  newAttributes.setLocalFlags(EnumSet.of(
          Attributes.LocalFlag.ICANON, Attributes.LocalFlag.ECHO,
          Attributes.LocalFlag.IEXTEN), false);
  // Input flags
  newAttributes.setInputFlags(EnumSet.of(
          Attributes.InputFlag.ICRNL, Attributes.InputFlag.INLCR, Attributes.InputFlag.IXON), false);
  terminal.setAttributes(newAttributes);

  // Capabilities
  // tput smcup; use alternate screen
  terminal.puts(InfoCmp.Capability.enter_ca_mode);
  terminal.puts(InfoCmp.Capability.cursor_invisible);
  terminal.puts(InfoCmp.Capability.cursor_home);

  terminal.flush();

  return prevStatus;
}
 

private void clearScreen() {
  terminal.puts(InfoCmp.Capability.clear_screen);
}
 

/**
 * Open an editor with the given title / file to load from. Blocks until the editor is closed.
 *
 * @param title
 * 		Editor title.
 * @param file
 * 		File containing content to read/write to.
 *
 * @throws IOException
 * 		Thrown if the file cannot be opened.
 */
private void openEditor(String title, File file) throws IOException {
	Nano nano = new Nano(terminal, file);
	nano.title = title;
	nano.open(file.getAbsolutePath());
	nano.run();
	terminal.puts(InfoCmp.Capability.clear_screen);
	terminal.flush();
}
 

protected abstract void puts(InfoCmp.Capability capability);