import type { LayoutNode } from "../layout";
import type { ApplyLayoutDesignerSettingsArgs } from "./ApplyLayoutDesignerSettingsArgs";
import type { GetLayoutDesignerSettingsArgs } from "./GetLayoutDesignerSettingsArgs";
import type { LayoutDesignerSettings } from "./LayoutDesignerSettings";
/**
 * Gets a component's layout settings, so that they can be configured by
 * VertiGIS Studio App Designer.
 *
 * @param args Information about the settings being requested such as the layout
 *   node.
 */
export type GetLayoutDesignerSettingsCallback<TSettings extends LayoutDesignerSettings> = (args: GetLayoutDesignerSettingsArgs) => TSettings | Promise<TSettings>;
/**
 * Applies layout settings that were modified in VertiGIS Studio App Designer
 * back to the layout node.
 *
 * @param args Contains the updated settings to apply, and the layout node to
 *   update.
 */
export type ApplyLayoutDesignerSettingsCallback<TSettings extends LayoutDesignerSettings> = (args: ApplyLayoutDesignerSettingsArgs<TSettings>) => void | Promise<void>;
/**
 * Values for visibility attributes in layouts.
 */
export type Visibility = "hidden" | "visible" | "default";
/**
 * Default implementation of `ApplyLayoutDesignerSettingsCallback`. Custom
 * implementations should call this one in addition to any custom logic.
 *
 * @param args The arguments passed in from App Designer specifying the settings
 *   and layout node to update.
 */
export declare function applyLayoutDesignerSettings(args: ApplyLayoutDesignerSettingsArgs): Promise<void>;
/**
 * Default implementation of `GetLayoutDesignerSettingsCallback`. Custom
 * implementations should call this one in addition to any custom logic.
 *
 * @param args The arguments passed in from App Designer specifying the layout
 *   node.
 */
export declare function getLayoutDesignerSettings(args: GetLayoutDesignerSettingsArgs): Promise<LayoutDesignerSettings>;
/**
 * Returns a percentages array where each percentage is rounded to the nearest
 * whole number and the sum of all percentages is 100.
 *
 * @param percentages The percentages to update.
 */
export declare function prettyPercentages(percentages: number[]): number[];
/**
 * Returns the direction of the node's parent. All nodes inherently behave like
 * a stack (has a primary axis of up/down) except for a split.
 *
 * @param node The child node.
 */
export declare function getParentDirection(node: LayoutNode): "width" | "height";
/**
 * Returns whether the node is growing based on its configured layout
 * attributes.
 *
 * Possible cases:
 *
 * - Grow is > 0 (growing)
 * - Grow is undefined and width / height undefined (growing)
 * - Grow is undefined and width / height defined (fixed)
 * - Grow is 0 and width / height defined (fixed)
 * - Grow is 0 and width / height undefined (fixed).
 *
 * @param node The node to check.
 */
export declare function isComponentGrowing(node: LayoutNode): boolean;