getClip method
Returns a description of the clip given that the render object being clipped is of the given size.
Implementation
@override
Path getClip(Size size) {
Path path = Path();
path.lineTo(0.0, size.height);
path.lineTo(size.width, size.height);
path.lineTo(size.width, 0.0);
path.lineTo(0.0, 0.0);
path.close();
double arrowWidth = 8.0;
double startPointX = (size.width - arrowWidth) / 2;
double startPointY = size.height / 2 - arrowWidth / 2;
path.moveTo(startPointX, startPointY);
path.lineTo(startPointX + arrowWidth / 2, startPointY - arrowWidth / 2);
path.lineTo(startPointX + arrowWidth, startPointY);
path.lineTo(startPointX + arrowWidth, startPointY + 1.0);
path.lineTo(
startPointX + arrowWidth / 2, startPointY - arrowWidth / 2 + 1.0);
path.lineTo(startPointX, startPointY + 1.0);
path.close();
startPointY = size.height / 2 + arrowWidth / 2;
path.moveTo(startPointX + arrowWidth, startPointY);
path.lineTo(startPointX + arrowWidth / 2, startPointY + arrowWidth / 2);
path.lineTo(startPointX, startPointY);
path.lineTo(startPointX, startPointY - 1.0);
path.lineTo(
startPointX + arrowWidth / 2, startPointY + arrowWidth / 2 - 1.0);
path.lineTo(startPointX + arrowWidth, startPointY - 1.0);
path.close();
return path;
}