@Override
public void backspace() {
myCursorX -= 1;
if (myCursorX < 0) {
myCursorY -= 1;
myCursorX = myTerminalWidth - 1;
}
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void cursorDown(final int dY) {
myTerminalTextBuffer.lock();
try {
myCursorY += dY;
myCursorY = Math.min(myCursorY, scrollingRegionBottom());
myDisplay.setCursor(myCursorX, myCursorY);
} finally {
myTerminalTextBuffer.unlock();
}
}
@Override
public void cursorUp(final int countY) {
myTerminalTextBuffer.lock();
try {
myCursorY -= countY;
myCursorY = Math.max(myCursorY, scrollingRegionTop());
myDisplay.setCursor(myCursorX, myCursorY);
} finally {
myTerminalTextBuffer.unlock();
}
}
@Override
public void newLine() {
myCursorY += 1;
scrollY();
if (isAutoNewLine()) {
carriageReturn();
}
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void nextLine() {
myTerminalTextBuffer.lock();
try {
myCursorX = 0;
if (myCursorY == myScrollRegionBottom) {
scrollArea(myScrollRegionTop, scrollingRegionSize(), -1);
} else {
myCursorY += 1;
}
myDisplay.setCursor(myCursorX, myCursorY);
} finally {
myTerminalTextBuffer.unlock();
}
}
public void scrollY() {
myTerminalTextBuffer.lock();
try {
if (myCursorY > myScrollRegionBottom) {
final int dy = myScrollRegionBottom - myCursorY;
myCursorY = myScrollRegionBottom;
scrollArea(myScrollRegionTop, scrollingRegionSize(), dy);
myDisplay.setCursor(myCursorX, myCursorY);
}
if (myCursorY < myScrollRegionTop) {
myCursorY = myScrollRegionTop;
}
} finally {
myTerminalTextBuffer.unlock();
}
}
@Override
public void reverseIndex() {
// Moves the cursor up one line in the same
// column. If the cursor is at the top margin,
// the page scrolls down.
myTerminalTextBuffer.lock();
try {
if (myCursorY == myScrollRegionTop) {
scrollArea(myScrollRegionTop, scrollingRegionSize(), 1);
} else {
myCursorY -= 1;
myDisplay.setCursor(myCursorX, myCursorY);
}
} finally {
myTerminalTextBuffer.unlock();
}
}
@Override
public void index() {
// Moves the cursor down one line in the
// same column. If the cursor is at the
// bottom margin, the page scrolls up
myTerminalTextBuffer.lock();
try {
if (myCursorY == myScrollRegionBottom) {
scrollArea(myScrollRegionTop, scrollingRegionSize(), -1);
} else {
myCursorY += 1;
myDisplay.setCursor(myCursorX, myCursorY);
}
} finally {
myTerminalTextBuffer.unlock();
}
}
@Override
public void horizontalTab() {
if (myCursorX >= myTerminalWidth) {
return;
}
int length = myTerminalTextBuffer.getLine(myCursorY - 1).getText().length();
int stop = myTabulator.nextTab(myCursorX);
myCursorX = Math.max(myCursorX, length);
if (myCursorX < stop) {
char[] chars = new char[stop - myCursorX];
Arrays.fill(chars, CharUtils.EMPTY_CHAR);
doWriteString(new String(chars));
} else {
myCursorX = stop;
}
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void restoreCursor() {
if (myStoredCursor != null) {
restoreCursor(myStoredCursor);
} else { // If nothing was saved by DECSC
setModeEnabled(TerminalMode.OriginMode, false); // Resets origin mode (DECOM)
cursorPosition(1, 1); // Moves the cursor to the home position (upper left of screen).
myStyleState.reset(); // Turns all character attributes off (normal setting).
myGraphicSetState.resetState();
// myGraphicSetState.designateGraphicSet(0, CharacterSet.ASCII);//Maps the ASCII character set
// into GL
// mapCharsetToGL(0);
// myGraphicSetState.designateGraphicSet(1, CharacterSet.DEC_SUPPLEMENTAL);
// mapCharsetToGR(1); //and the DEC Supplemental Graphic set into GR
}
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void cursorPosition(int x, int y) {
if (isOriginMode()) {
myCursorY = y + scrollingRegionTop() - 1;
} else {
myCursorY = y;
}
if (myCursorY > scrollingRegionBottom()) {
myCursorY = scrollingRegionBottom();
}
// avoid issue due to malformed sequence
myCursorX = Math.max(0, x - 1);
myCursorX = Math.min(myCursorX, myTerminalWidth - 1);
myCursorY = Math.max(0, myCursorY);
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void linePositionAbsolute(int y) {
myCursorY = y;
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void cursorBackward(final int dX) {
myCursorX -= dX;
myCursorX = Math.max(myCursorX, 0);
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void cursorForward(final int dX) {
myCursorX += dX;
myCursorX = Math.min(myCursorX, myTerminalWidth - 1);
myDisplay.setCursor(myCursorX, myCursorY);
}
@Override
public void carriageReturn() {
myCursorX = 0;
myDisplay.setCursor(myCursorX, myCursorY);
}
private void finishText() {
myDisplay.setCursor(myCursorX, myCursorY);
scrollY();
}
