code: void showCursor () {
  		updateCurrentLine();
  		if (cursorLine != firstLineShowing) {
  			int step = cursorLine >= firstLineShowing ? 1 : -1;
  			while (firstLineShowing > cursorLine || firstLineShowing + linesShowing - 1 < cursorLine) {
  				firstLineShowing += step;
  			}
  		}
  	}
docs: Scroll the text area to show the line of the cursor *