import { IGanttTask, IParsedTask, GanttDataTree, ITask, IDataHash, IData } from "./types";
export declare const heightAdjustment = 7;
export declare function dragSummaryKids(task: IParsedTask, dx: number, rollups: boolean): void;
export declare function dragSummary(tasks: GanttDataTree, task: IParsedTask): void;
export declare function setSummaryDates(task: ITask, tasks?: Partial<ITask>[]): ITask;
export declare function updateTask(t: IGanttTask, i: number | null, state: Partial<IData>): IGanttTask;
export declare function isSegmentMoveAllowed(task: IGanttTask, moveOptions: IDataHash): boolean;
export declare function extendDragOptions(task: ITask, options: IDataHash): void;