import { ISurfaceContext } from '@devexpress/analytics-core/analytics-elements';
import { DragDropHandler, DragHelperContent, ObjectStructureTreeListController, SurfaceSelection } from '@devexpress/analytics-core/analytics-internal';
import { UndoEngine } from '@devexpress/analytics-core/analytics-utils';
import { ITreeListItemViewModel, TreeListItemViewModel } from '@devexpress/analytics-core/analytics-widgets-internal';
import * as ko from 'knockout';
import { ChartTreeListDragDropHelper } from './_chartTreeListDragDropHelper';
export declare class ChartStructureTreeListController extends ObjectStructureTreeListController {
    private surface?;
    private undoEngine?;
    private dragHelperContent?;
    constructor(propertyNames?: string[], listPropertyNames?: string[], selectCallback?: (value: TreeListItemViewModel) => void, surface?: SurfaceSelection, undoEngine?: ko.Observable<UndoEngine> | ko.Computed<UndoEngine>, dragHelperContent?: DragHelperContent);
}
export declare class ChartDragDropHandler extends DragDropHandler {
    private undoEngine;
    dispose(): void;
    constructor(surface: ko.Observable<ISurfaceContext> | ko.Computed<ISurfaceContext>, selection: SurfaceSelection, undoEngine: ko.Observable<UndoEngine> | ko.Computed<UndoEngine>, dragHelperContent: DragHelperContent);
    startDrag(draggable: ITreeListItemViewModel): void;
    drag(event: MouseEvent, ui: HTMLElement): void;
    doStopDrag(ui: Element, draggable: ITreeListItemViewModel, event: MouseEvent): void;
    dragDropHelper: ChartTreeListDragDropHelper;
}