/** @packageDocumentation
 * @module Widget
 */
import "./Stacked.scss";
import * as React from "react";
import { CommonProps, NoChildrenProps, RectangleProps } from "@bentley/ui-core";
import { DisabledResizeHandles } from "../utilities/DisabledResizeHandles";
/** Available [[Stacked]] widget horizontal anchors.
 * @beta
 */
export declare enum HorizontalAnchor {
    Left = 0,
    Right = 1
}
/** Available [[Stacked]] widget vertical anchors.
 * @beta
 */
export declare enum VerticalAnchor {
    Bottom = 0,
    BottomPanel = 1,
    Middle = 2,
    TopPanel = 3
}
/** Available resize handles of rectangular widget.
 * @beta
 */
export declare enum ResizeHandle {
    Left = 0,
    Top = 1,
    Right = 2,
    Bottom = 3
}
/** Helpers for [[HorizontalAnchor]].
 * @internal
 */
export declare class HorizontalAnchorHelpers {
    /** Class name of [[HorizontalAnchor.Left]] */
    static readonly LEFT_CLASS_NAME = "nz-left-anchor";
    /** Class name of [[HorizontalAnchor.Right]] */
    static readonly RIGHT_CLASS_NAME = "nz-right-anchor";
    /** @returns Class name of specified [[HorizontalAnchor]] */
    static getCssClassName(anchor: HorizontalAnchor): string;
}
/** Helpers for [[VerticalAnchor]].
 * @internal
 */
export declare class VerticalAnchorHelpers {
    /** Class name of [[VerticalAnchor.Bottom]] */
    static readonly BOTTOM_CLASS_NAME = "nz-bottom-anchor";
    /** Class name of [[VerticalAnchor.Bottom]] */
    static readonly BOTTOM_PANEL_CLASS_NAME = "nz-bottom-panel-anchor";
    /** Class name of [[VerticalAnchor.Middle]] */
    static readonly MIDDLE_CLASS_NAME = "nz-middle-anchor";
    /** Class name of [[VerticalAnchor.Bottom]] */
    static readonly TOP_PANEL_CLASS_NAME = "nz-top-panel-anchor";
    /** @returns Class name of specified [[VerticalAnchor]] */
    static getCssClassName(anchor: VerticalAnchor): string;
    /** @returns Returns true if [[VerticalAnchor]] defines horizontal stacked widget. */
    static isHorizontal(anchor: VerticalAnchor): boolean;
}
/** Properties of [[Stacked]] component.
 * @alpha
 */
export interface StackedProps extends CommonProps, NoChildrenProps {
    /** Content of this widget. I.e. [[WidgetContent]] */
    content?: React.ReactNode;
    /** Content ref of this widget. */
    contentRef?: React.Ref<HTMLDivElement>;
    /** Describes disabled resize handles. */
    disabledResizeHandles?: DisabledResizeHandles;
    /** Describes if the widget should fill the zone. */
    fillZone?: boolean;
    /** Describes to which side the widget is horizontally anchored. */
    horizontalAnchor: HorizontalAnchor;
    /** Describes if the widget is in collapsed stage panel. */
    isCollapsed?: boolean;
    /** Describes if the widget is being dragged. */
    isDragged?: boolean;
    /** Describes if the widget is floating. */
    isFloating?: boolean;
    /** True if widget is open, false otherwise. */
    isOpen?: boolean;
    /** Describes if the tab bar is visible. */
    isTabBarVisible?: boolean;
    /** Function called when resize action is performed. */
    onResize?: (resizeBy: number, handle: ResizeHandle, filledHeightDiff: number) => void;
    /** Widget tabs. See: [[Tab]], [[TabSeparator]], [[Group]] */
    tabs?: React.ReactNode;
    /** Describes to which side the widget is vertically anchored. */
    verticalAnchor: VerticalAnchor;
    /** Handler for mouse enter */
    onMouseEnter?: (event: React.MouseEvent<HTMLElement, MouseEvent>) => void;
    /** Handler for mouse leave */
    onMouseLeave?: (event: React.MouseEvent<HTMLElement, MouseEvent>) => void;
}
/** Stacked widget is used to display multiple tabs and some content.
 * @note Should be placed in [[Zone]] component.
 * @alpha
 */
export declare class Stacked extends React.PureComponent<StackedProps> {
    private _widget;
    private _relativePosition?;
    getBounds(): RectangleProps;
    render(): JSX.Element;
    private getFilledHeightDiff;
    private getResizeDifference;
    private _handleResizeStart;
    private _handleResizeEnd;
    private _handleTabsGripResize;
    private _handleContentGripResize;
    private _handlePrimaryGripResize;
    private _handleSecondaryGripResize;
}
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