CPRulerView.j declared CPRulerOrientation's constants directly,
with only a comment claiming it was a typedef.
No @typedef directive existed, so the type was unknown wherever used as an ivar or parameter type.
Added the missing @typedef CPRulerOrientation, matching the pattern already used for CPTextAlignment in CPText.j.
CPRulerView.j referenced CPTextTab (isKindOfClass: and alloc/init) without a declaration.
Added @class CPTextTab; to resolve the symbol reference. A forward declaration was utilized rather than importing CPParagraphStyle.j to minimize dependency coupling, despite the absence of a circular import risk.
Resolves build warning.
CPRulerView.j did not import CPScrollView.
A direct import would create a cycle, since CPScrollView.j already imports CPRulerView.j.
Added a forward declaration instead.
David Richardson
daboe01