/**
 * The workspace-size and scroll-detection queries for `Viewport`, plus the mixin object that
 * implements them.
 *
 * These methods answer "how big is the drawable area and will scrollbars appear" — the workspace and
 * viewport dimensions, the row-header width / column-header height (with their lazy caches), the
 * scrollbar-presence checks, and the window-scrollability checks. They are applied to `Viewport` with
 * the same `mixin()` helper the range-query and sticky mixins use and reach the injected deps through
 * the public `this.deps` getter (a mixin cannot see the class's `#deps` private field).
 *
 * On the single-pass gated path these read the per-draw `LayoutSnapshot` instead of forcing DOM
 * layout; off that path they measure the DOM directly.
 */
import type { default as Viewport } from './viewport';
/**
 * Measures the workspace height off the live DOM (the trimming container, with the `#3119`
 * zero-height→window fallback). Kept as a free function so the public `getWorkspaceHeight` can return
 * the layout snapshot on the single-pass path while `gatherLayoutInput` (which BUILDS the snapshot)
 * and the legacy measure path route here directly, avoiding recursion through `getLayout()`.
 *
 * @param {Viewport} viewport The viewport instance.
 * @returns {number}
 */
export declare function measureWorkspaceHeight(viewport: Viewport): number;
/**
 * Measures the workspace width off the live DOM. Free-function twin of `measureWorkspaceHeight` (see
 * its note on why the raw measure is split out from the public `getWorkspaceWidth`).
 *
 * @param {Viewport} viewport The viewport instance.
 * @returns {number}
 */
export declare function measureWorkspaceWidth(viewport: Viewport): number;
/**
 * Workspace-size and scroll-detection queries, mixed into `Viewport`.
 */
export interface WorkspaceSize {
    getWorkspaceHeight(): number;
    getViewportHeight(): number;
    getWorkspaceWidth(): number;
    getViewportWidth(): number;
    hasVerticalScroll(): boolean;
    hasHorizontalScroll(): boolean;
    isVerticallyScrollableByWindow(): boolean;
    isHorizontallyScrollableByWindow(): boolean;
    sumColumnWidths(from: number, length: number): number;
    getWorkspaceOffset(): {
        left: number;
        top: number;
    };
    getColumnHeaderHeight(): number;
    getRowHeaderWidth(): number;
}
/**
 * The workspace-size mixin. Implements `WorkspaceSize` by measuring the trimming container and the
 * rendered table through the geometry reader.
 *
 * @type {WorkspaceSize}
 */
export declare const workspaceSize: WorkspaceSize;