import { PptxTableData } from 'pptx-viewer-core';
import { CellCoord, CellRect } from 'pptx-viewer-shared';
/**
 * The block of table cells the user has marquee'd on the canvas.
 *
 * Svelte shipped without this model at all: `context-menu-dispatch` hard-coded
 * `hasMultiCellSelection: false`, so PowerPoint's "Merge Cells" could never be
 * offered and a user could only ever merge one cell rightwards or downwards.
 *
 * None of the rectangle math lives here. `computeSelectionRect` in
 * `pptx-viewer-shared` owns it, and it is merge-AWARE: dragging across a cell
 * that already spans expands the rectangle to cover the whole span, so the
 * highlighted block is always a real rectangle in model coordinates. (The
 * vanilla binding carries a private `rectangle()` helper that ignores spans;
 * that is a bug, not a second model, and is deliberately not copied.)
 *
 * @module editor/table-cell-selection
 */
/** A click on a `<td>`, in model (unmerged) coordinates. */
export interface TableCellPoint {
    rowIndex: number;
    columnIndex: number;
}
export declare class TableCellSelection {
    /** The table element the range belongs to, or null when there is none. */
    elementId: string | null;
    /** Where the range started (the un-shifted click). */
    anchor: CellCoord | null;
    /** The current rectangle, already expanded over any merged cells it meets. */
    rect: CellRect | null;
    /** Every cell in the current range, row-major. Empty when there is none. */
    get cells(): CellCoord[];
    /** True once the range covers a block, i.e. once merging becomes possible. */
    get hasBlock(): boolean;
    /** The range on `elementId`, or an empty array when it belongs elsewhere. */
    cellsFor(elementId: string | null | undefined): CellCoord[];
    /** Is this cell of this element inside the highlighted block? */
    contains(elementId: string, row: number, col: number): boolean;
    /** A plain click: the range collapses to the clicked cell, which anchors it. */
    begin(elementId: string, cell: TableCellPoint, tableData: PptxTableData): void;
    /**
     * A Shift-click: stretch anchor -> cell into a rectangle. Falls back to
     * anchoring when there is no anchor yet (or it belongs to another table), so
     * a Shift-click is never a no-op.
     */
    extend(elementId: string, cell: TableCellPoint, tableData: PptxTableData): void;
    clear(): void;
    /** Drop the range when the element selection has moved off its table. */
    syncElement(selectedElementId: string | null): void;
}
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