import type { NamedBean } from '../context/bean';
import { BeanStub } from '../context/beanStub';
import type { BeanCollection } from '../context/context';
import type { AgColumn } from '../entities/agColumn';
import type { AgColumnGroup } from '../entities/agColumnGroup';
import type { RowNode } from '../entities/rowNode';
import type { ColumnEventType } from '../events';
/** Per-section total pixel widths (left-pinned, centre body, right-pinned). */
type SectionWidths = {
    left: number;
    center: number;
    right: number;
};
/** @internal AG_GRID_INTERNAL - Not for public use. Can change / be removed at any time. */
export declare class VisibleColsService extends BeanStub implements NamedBean {
    beanName: "visibleCols";
    private colModel;
    private colGroupSvc;
    private colViewport;
    private ctrlsSvc;
    private colFlex?;
    /** True iff any centre col has `flex > 0` — lets the flex pass be skipped when nothing flexes. */
    private flexActive;
    treeLeft: (AgColumn | AgColumnGroup)[];
    treeRight: (AgColumn | AgColumnGroup)[];
    treeCenter: (AgColumn | AgColumnGroup)[];
    leftCols: AgColumn[];
    rightCols: AgColumn[];
    centerCols: AgColumn[];
    /** `leftCols + centerCols + rightCols` (RTL: right + center + left). */
    allCols: AgColumn[];
    /** `allCols` with `colDef.autoHeight`. Reused across refreshes to stay warm. */
    readonly autoHeightCols: AgColumn[];
    /** Number of header rows to render, accounting for group depth + padding rules. */
    headerGroupRowCount: number;
    /** Centre body width. Cached for body sizing and row insert/resize. */
    bodyWidth: number;
    leftWidth: number;
    rightWidth: number;
    totalWidth: number;
    /** `bodyWidth` changed in the last `updateBodyWidths()` — drives the RTL virtual-col calc. */
    isBodyWidthDirty: boolean;
    /** Prev refresh's pinned-edge cols — drive an O(1) role-swap in `setFirstRightAndLastLeftPinned`. */
    private prevLastLeftPinned;
    private prevFirstRightPinned;
    wireBeans(beans: BeanCollection): void;
    /** `skipTreeBuild=true` reuses the trees; valid only when liveCols are unchanged (group toggle, width autosize). */
    refresh(source: ColumnEventType, skipTreeBuild: boolean): void;
    /** `widths` reuses totals already computed on the hot `refresh` path; omit to re-sum. */
    updateBodyWidths(widths?: SectionWidths): void;
    /** Repositions each col's section-relative `left` without rebuilding the displayed set; returns
     *  per-section widths. Lighter sibling of `joinCols`, for resize / autosize / flex. */
    setLeftValues(source: ColumnEventType): SectionWidths;
    private setLeftValuesOfGroups;
    private setFirstRightAndLastLeftPinned;
    private buildTrees;
    /** Single pass over `colsList`: filter to displayable cols and bucket by pin. The selection col is held
     *  back until a non-service col proves it isn't the only displayed col — a lone checkbox adds nothing. */
    private partitionVisibleCols;
    clear(): void;
    private stampAriaColIndexes;
    /** One pass over displayed cols: stamps `allColsIndex` (display order; RTL flips sections) and
     *  section-relative `left`, returning per-section widths so {@link updateBodyWidths} needn't re-sum. */
    private joinCols;
    /** Lays one section's cols into `all`: stamps `allColsIndex` + section-relative `left`, folding in
     *  `autoHeightCols`/`flexActive`/`headerGroupRowCount`. A method not a closure, so it allocates nothing. */
    private layoutSection;
    getLeftColsForRow(rowNode: RowNode): AgColumn[];
    getRightColsForRow(rowNode: RowNode): AgColumn[];
    /** `filterCallback` is only set for the centre (virtualised) area. A col-spanned run is kept if
     *  ANY spanned col passes the filter. */
    getColsForRow(rowNode: RowNode, displayedColumns: AgColumn[], filterCallback?: (column: AgColumn) => boolean, emptySpaceBeforeColumn?: (column: AgColumn) => boolean): AgColumn[];
    getColBefore(col: AgColumn): AgColumn | null;
    getColAfter(col: AgColumn): AgColumn | null;
    /** Prefer the recomputed width: the `leftWidth` cache can be stale mid column-move. */
    getLeftStickyColumnContainerWidth(): number;
    /** Prefer the recomputed width: the `rightWidth` cache can be stale mid column-move. */
    getRightStickyColumnContainerWidth(): number;
    isColAtEdge(col: AgColumn | AgColumnGroup, edge: 'first' | 'last'): boolean;
}
export {};