Checks if all corners of @self are right angles and the rectangle covers all of its bounds.
This information can be used to decide if [ctor@Gsk.ClipNode.new] or [ctor@Gsk.RoundedClipNode.new] should be called.
%TRUE if the rectangle is rectilinear
See Implementation
Checks if all corners of @self are right angles and the rectangle covers all of its bounds.
This information can be used to decide if [ctor@Gsk.ClipNode.new] or [ctor@Gsk.RoundedClipNode.new] should be called.