import { PptxSlide } from 'pptx-viewer-core';
import { AlignEdge, DistributeAxis } from 'pptx-viewer-shared';
/**
 * Pure, multi-select-aware arrange mutations for the Home tab's Arrange
 * group: align / distribute / flip / group / ungroup. The bounding-box maths
 * (`alignElements`, `distributeElements`) and grouping (`groupElements`,
 * `ungroupElements`) are the shared, framework-agnostic operations from
 * `pptx-viewer-shared`; this module lifts them to the slide-array shape
 * `EditorState` stores and to the ordered `selection.ids` list the toolbar
 * reads (mirrors `editor-mutations.ts` / `editor-zorder.ts`).
 */
/** Align every selected element to a common edge (needs >= 2 ids). Null when a no-op. */
export declare function alignSelectedOnSlide(slides: readonly PptxSlide[], slideIndex: number, ids: readonly string[], edge: AlignEdge): PptxSlide[] | null;
/** Distribute the selected elements evenly along an axis (needs >= 3 ids). Null when a no-op. */
export declare function distributeSelectedOnSlide(slides: readonly PptxSlide[], slideIndex: number, ids: readonly string[], axis: DistributeAxis): PptxSlide[] | null;
/** Flip every selected element across the given axis. Null when nothing is selected. */
export declare function flipSelectedOnSlide(slides: readonly PptxSlide[], slideIndex: number, ids: readonly string[], axis: 'horizontal' | 'vertical'): PptxSlide[] | null;
/** Group the selected elements (needs >= 2 ids). Returns the new group id, or null when a no-op. */
export declare function groupSelectedOnSlide(slides: readonly PptxSlide[], slideIndex: number, ids: readonly string[], intoTemplate?: boolean): {
    slides: PptxSlide[];
    groupId: string;
} | null;
/** Ungroup the group element with `groupId`. Returns the ungrouped child ids, or null when not found. */
export declare function ungroupOnSlide(slides: readonly PptxSlide[], slideIndex: number, groupId: string, fromTemplate?: boolean): {
    slides: PptxSlide[];
    childIds: string[];
} | null;
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