private void paintCursor(Graphics g, Color cursorColor, RowColLocation cursorLoc) {

		if (cursorLoc != null) {
			g.setColor(cursorColor);
			if (cursorLoc.col() == 0) {
				int x = startX;
				g.fillRect(x, -heightAbove, 2, height);
			}
		}
	}
Returns true if the cursor is allowed past the last character.  This
field always returns false since there is no text.
@return true if the cursor is allowed past the last character
Ghidra/Framework/Docking/src/main/java/docking/widgets/fieldpanel/field/EmptyTextField.java