getOffsetForCaret method

Offset getOffsetForCaret (TextPosition position, Rect caretPrototype)

Returns the offset at which to paint the caret.

Valid only after layout.

Implementation 

Offset getOffsetForCaret(TextPosition position, Rect caretPrototype) {
  assert(!debugNeedsLayout);
  _layoutTextWithConstraints(constraints);
  return _textPainter.getOffsetForCaret(position, caretPrototype);
}