Package com.tonic.vellum

Interface Summary

Interface	Description
Cancellable	Handle for a scheduled task; cancel to stop further runs.
Canvas	A drawing surface clipped to a section's bounds.
OverlayHandle	Handle to an open overlay.
Placement	Computes an overlay's bounds from the current screen bounds.

Class Summary

Class	Description
App	The application engine: owns the terminal, the single UI thread and event loop, layout, repaint, focus, and resize.
App.Builder	Fluent builder for an App.
CharWidth	Terminal display width of characters and code points: 0 for zero-width, 2 for East Asian wide characters and common emoji, 1 otherwise.
Maths	Small numeric helpers.
Section	The base unit of a Vellum UI: every visible element is a Section, and containers are Sections that hold other Sections.

Enum Summary

Enum	Description
KeyResult	Outcome of Section.onKey: whether the key was handled or should keep propagating.