import type { ReactNode } from "react";
import type { ChildByLevelMap, DependencyMap, DependentMap, Distances, FrozenDateRange, GanttFeaturesConfig, OnRelationChange, RenderTask, RootMapByLevel, Task, ViewMode } from "../../../types";
export interface GanttViewContextValue {
    childTasksMap: ChildByLevelMap;
    rootTasksMap: RootMapByLevel;
    dependencyMap: DependencyMap;
    dependentMap: DependentMap;
    visibleTasks: readonly RenderTask[];
    viewMode: ViewMode;
    distances: Distances;
    comparisonLevels: number;
    features: Required<GanttFeaturesConfig>;
    onRelationChange: OnRelationChange;
    scrollToTask: (task: Task) => void;
    frozenDates: readonly FrozenDateRange[];
    calculateFrozenDates: boolean;
}
export interface GanttViewProviderProps {
    value: GanttViewContextValue;
    children: ReactNode;
}
export declare const GanttViewProvider: ({ value, children }: GanttViewProviderProps) => import("react/jsx-runtime").JSX.Element;
export declare const useRelations: () => {
    dependencyMap: DependencyMap;
    dependentMap: DependentMap;
    enabled: boolean;
    onRelationChange: OnRelationChange;
};
export declare const useBaseline: () => {
    comparisonLevels: number;
    visibleTasks: readonly RenderTask[];
    enabled: boolean;
};
export declare const useGroups: () => {
    childTasksMap: ChildByLevelMap;
    rootTasksMap: RootMapByLevel;
    visibleTasks: readonly RenderTask[];
    enabled: boolean;
};
export declare const useZoom: () => {
    viewMode: ViewMode;
    columnWidth: number;
    rowHeight: number;
    scrollToTask: (task: Task) => void;
};
export declare const useFreezeDates: () => {
    frozenDates: readonly FrozenDateRange[];
    calculateFrozenDates: boolean;
    enabled: boolean;
};