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 for the entire screen
Path outerPath = Path()..addRect(Rect.fromLTWH(0, 0, size.width, size.height));
// Path for the exclusion area
Path exclusionPath = Path()..addRect(exclusionRect);
// Combining the paths to exclude the rectangle area
return Path.combine(PathOperation.difference, outerPath, exclusionPath);
}