getPositionAbove method
Returns the position within the text which is on the line above the given
position
.
The position
parameter must be relative to the node
content.
Primarily used with multi-line or soft-wrapping text.
Can return null
which indicates that the position
is at the topmost
line in the text already.
Implementation
@override
TextPosition? getPositionAbove(TextPosition position) {
return _getPosition(position, -0.5);
}