Module split_rendering 

Split pane layout and buffer rendering.

This module is organized into two tiers:

• Self-contained leaves (spans, style, char_style, base_tokens, transforms, view_data, folding, scrollbar, layout, gutter, post_pass) — none of these depend on any shared render-time carrier.
• Orchestration (orchestration::*) — the only files that share SelectionContext / DecorationContext. Quarantined in a subdirectory so the coupling is visible from ls alone.

The public API is re-exposed via the SplitRenderer façade at the bottom of this file; it forwards to orchestration::*.

Structs

EditorRenderConfig

Immutable editor render settings for one frame.

RenderStyle

“How to render” — the appearance/policy inputs that are identical for every split in a frame: the theme, the ANSI backdrop, and the editor render config. Built once at the top of the render pass and threaded by reference through the whole painter chain (render_content → render_buffer_in_split → …), so each layer forwards one RenderStyle instead of re-listing ~16 style parameters. Distinct from per-split state and the draw target, which vary or are mutated.

SplitRenderer

Public façade for split-pane rendering.