// Show the command from the command history, pointed to by the index.
// Note that the index runs in reverse.
private void showHistory() {
String lShowLine;
if (commandHistoryIndex == 0) lShowLine = currentCommand;
else lShowLine = commandHistory.get(commandHistory.size() - commandHistoryIndex);
replaceConsoleText(lShowLine, commandPos, textLength());
text.setCaretPosition(textLength());
text.repaint();
}
private String getCmd() {
try {
return text.getText(commandPos, textLength() - commandPos);
} catch (BadLocationException e) {
return "";
}
}
private void processCommand() {
String lCommandRepr = getCmd();
if (lCommandRepr.length() != 0) commandHistory.add(lCommandRepr);
lCommandRepr = lCommandRepr + "\n";
appendConsoleText("\n");
commandHistoryIndex = 0;
acceptLine(lCommandRepr);
text.repaint();
}
/**
* The user of the component can write a command in the console as if the user typed the command
* himself. The application using the console can simnulate user actions in this way.
*
* @param aCommand
*/
public void setCommand(String aCommand) {
String lCommandRepr = aCommand;
if (lCommandRepr.length() != 0) commandHistory.add(lCommandRepr);
lCommandRepr = lCommandRepr + "\n";
appendConsoleText(lCommandRepr);
commandHistoryIndex = 0;
acceptLine(lCommandRepr);
text.repaint();
}
public JConsole() {
super();
setBackground(new Color(70, 70, 70));
setForeground(Color.WHITE);
text = new MyJTextPane();
text.setAutoscrolls(true);
final Font lFont = new Font("Monospaced", Font.PLAIN, 15);
text.setText("");
text.setFont(lFont);
text.setMargin(new Insets(5, 3, 5, 3));
text.addKeyListener(new MyKeyListener());
setViewportView(text);
contextMenu = new JPopupMenu();
final ActionListener lActionListener = new MyActionListener();
contextMenu.add(new JMenuItem(CMD_CUT)).addActionListener(lActionListener);
contextMenu.add(new JMenuItem(CMD_COPY)).addActionListener(lActionListener);
contextMenu.add(new JMenuItem(CMD_PASTE)).addActionListener(lActionListener);
text.addMouseListener(new MyMouseListener());
MutableAttributeSet attr = new SimpleAttributeSet();
StyleConstants.setForeground(attr, Color.BLACK);
attr = new SimpleAttributeSet();
StyleConstants.setForeground(attr, Color.WHITE);
attrOut = attr;
attr = new SimpleAttributeSet();
StyleConstants.setForeground(attr, Color.RED);
StyleConstants.setItalic(attr, true);
StyleConstants.setBold(attr, true);
attrError = attr;
try {
fromConsoleStream = new PipedOutputStream();
in = new PipedInputStream((PipedOutputStream) fromConsoleStream);
final PipedOutputStream lOutPipe = new PipedOutputStream();
out = new PrintStream(lOutPipe);
final PipedOutputStream lErrPipe = new PipedOutputStream();
err = new PrintStream(lErrPipe);
} catch (IOException e) {
e.printStackTrace();
}
requestFocus();
}
private int textLength() {
return text.getDocument().getLength();
}
public void setFont(Font aFont) {
super.setFont(aFont);
if (text != null) text.setFont(aFont);
}
/** Clear the console. */
public void clear() {
text.setText("");
text.repaint();
}
private void moveCaret() {
if (text.getCaretPosition() < commandPos) {
text.setCaretPosition(textLength());
}
text.repaint();
}
// Replace part of the text in the text component.
private String replaceConsoleText(Object aContent, int aFrom, int aTo) {
final String aContentRepr = aContent.toString();
text.select(aFrom, aTo);
text.replaceSelection(aContentRepr);
return aContentRepr;
}
// Append text to the end of the text already present in the
// text component.
private void appendConsoleText(String aContent) {
final int lTxtLen = textLength();
text.select(lTxtLen, lTxtLen);
text.replaceSelection(aContent);
}
// Focus handling.
public void requestFocus() {
super.requestFocus();
text.requestFocus();
}