getHandleAnchor method
- TextSelectionHandleType type,
- double textLineHeight
override
Gets anchor for cupertino-style text selection handles.
Implementation
@override
Offset getHandleAnchor(TextSelectionHandleType type, double textLineHeight) {
final Size handleSize = getHandleSize(textLineHeight);
switch (type) {
// The circle is at the top for the left handle, and the anchor point is
// all the way at the bottom of the line.
case TextSelectionHandleType.left:
return Offset(
handleSize.width / 2,
handleSize.height,
);
// The right handle is vertically flipped, and the anchor point is near
// the top of the circle to give slight overlap.
case TextSelectionHandleType.right:
return Offset(
handleSize.width / 2,
handleSize.height - 2 * _kSelectionHandleRadius + _kSelectionHandleOverlap,
);
// A collapsed handle anchors itself so that it's centered.
case TextSelectionHandleType.collapsed:
return Offset(
handleSize.width / 2,
textLineHeight + (handleSize.height - textLineHeight) / 2,
);
}
}