import type { OverlayContext } from "../../ui-core/controllers/focus-controller.js";
export declare const COMPOSER_MAX_TEXT_ROWS = 18;
export declare const COMPOSER_BORDER_ROWS = 2;
/** Directory line rendered above the composer box (inside its allocation). */
export declare const COMPOSER_DIR_ROWS = 1;
/** One blank breather row between the chat feed and the composer area. */
export declare const COMPOSER_GAP_ROWS = 1;
export declare const OVERLAY_MIN_ROWS = 5;
export declare const MAX_TOAST_ROWS = 2;
export declare const QUEUE_MAX_ROWS = 5;
export declare const PLAN_MIN_ROWS = 5;
export declare const PLAN_MAX_ROWS = 14;
export declare const PLAN_BORDER_ROWS = 2;
export type StatusRowsWanted = 1 | 2 | 3;
export interface ChromeOverlayDemand {
    readonly kind: OverlayContext;
    readonly rowsWanted: number;
}
export interface ChromeDemand {
    readonly rows: number;
    readonly columns: number;
    readonly composerTextRows: number;
    readonly statusRowsWanted: StatusRowsWanted;
    readonly toastCount: number;
    readonly queueCount: number;
    readonly responderVisible: boolean;
    readonly planVisible: boolean;
    readonly planRowsWanted: number;
    readonly overlay: ChromeOverlayDemand | undefined;
}
export interface ChromeLayout {
    readonly composer: number;
    readonly status: number;
    readonly toast: number;
    readonly queue: number;
    readonly responder: number;
    readonly plan: number;
    readonly overlay: number;
    readonly liveTail: number;
    readonly total: number;
    readonly degraded: boolean;
}
export declare function allocateChrome(demand: ChromeDemand): ChromeLayout;