1. Flyology TUI
  2. Components
  3. Panel groups

Layout

Panel groups

Resize an arbitrary bounded sequence of panes at shared dividers.

Generated previewCharm
Dedicated Panel groups example rendered in the Charm skin

The site build compiles the dedicated Ada component example, constructs Panel groups through its public API, and exports that exact styled surface. Read the capture source.

When to use it

Use a panel group for jointly resizable horizontal or vertical work areas with more than two children.

State and ownership

The Flyology_TUI.Components.Panel_Groups package defines this component.

Initial sizes, weights, minima, pane bounds, focused divider, and capture stay in the model. Children remain caller-owned.

  • The application model owner applies updates during serial event dispatch.
  • Appearance and skin values are borrowed only while the component renders.

Input and updates

Drag a shared divider with the mouse or move the focused divider with arrows. Tab changes the focused divider.

Integration sequence

  1. Create the bounded model and populate it with caller-owned data.
  2. Route the current keyboard or local mouse event through the component handler.
  3. Apply the typed result, then render from the updated model with the current appearance.

See the linked package reference for its exact declarations and contracts.

Responsive and accessible behavior

  • Use dimensions and regions from the current layout or presentation value.
  • When a component owns mouse capture, route its matching release even when the pointer leaves the original bounds.
  • Retain a glyph, label, border, or text-attribute cue when the terminal reduces color.