import { ObjectManager } from "../ObjectManager";
import { ObjectBase } from "../ObjectBase";
import { DestinationBase } from "./Destination";
import { PdfCollection } from "./PdfCollection";
import { type PdfDocument } from "./PdfDocument";
import { ActionBase } from "./Action";
import type { DestinationProperties } from "./Destination";
import type { ActionProperties } from "./Action";
import type { Color } from "../Types";
import { OutlineNodeFontStyle } from "../Enums";
/**
 * Defines the collection of {@link OutlineNode} objects.
 **/
export declare class OutlineNodeCollection extends PdfCollection<OutlineNode> {
    private constructor();
    static innerCreate(om: ObjectManager, id: number): OutlineNodeCollection;
    get count(): number;
    getAt(index: number): OutlineNode;
    setAt(index: number, item: OutlineNode): void;
    insert(index: number, item: OutlineNode): void;
    contains(item: OutlineNode): boolean;
    remove(item: OutlineNode): boolean;
    removeAt(index: number): void;
    clear(): void;
    /**
     * Gets the {@link PdfDocument} object that owns this collection.
     */
    get doc(): PdfDocument;
    /**
     * Adds an item to the end of the collection.
     * @param item - The outline node specified as {@link OutlineNodeProperties} or {@link OutlineNode}.
     */
    add(item: OutlineNodeProperties | OutlineNode): void;
}
/**
 * Defines properties of the outline node within PDF document.
 * See {@link OutlineNode}.
 */
export type OutlineNodeProperties = {
    /**
     * The title of the outline node.
     */
    title: string;
    /**
     * The text color of the outline node.
     */
    textColor?: Color;
    /**
     * The text style of the outline node.
     */
    textStyle?: OutlineNodeFontStyle;
    /**
     * The {@link DestinationBase} to be displayed when this {@link OutlineNode} is activated.
     */
    dest?: DestinationProperties;
    /**
     * The {@link ActionBase} to be performed when this {@link OutlineNode} is activated.
     */
    action?: ActionProperties;
    /**
     * Indicates whether this {@link OutlineNode} expanded and its child nodes are visible.
     */
    expanded?: boolean;
    /**
     * The child nodes.
     */
    children?: OutlineNodeProperties[];
};
/**
 * Defines the outline node within PDF document.
 */
export declare class OutlineNode extends ObjectBase {
    /**
     * Initialize a new instance of the {@link OutlineNode} class.
     *
     * @param om - {@link ObjectManager} that controls the lifetime of the {@link OutlineNode}.
     * @param title - The title of {@link OutlineNode}.
     * @param action - The action which should be performed or destination defining the new document view.
     * @param expanded - Indicates whether the node should be expanded.
     */
    constructor(om: ObjectManager, title?: string, action?: DestinationBase | DestinationProperties | ActionBase | ActionProperties, expanded?: boolean);
    /**
     * Initialize a new instance of the {@link OutlineNode} class.
     *
     * @param title - The title of {@link OutlineNode}.
     * @param action - The action which should be performed or destination defining the new document view.
     * @param expanded - Indicates whether the node should be expanded.
     */
    constructor(title?: string, action?: DestinationBase | DestinationProperties | ActionBase | ActionProperties, expanded?: boolean);
    /**
     * Gets the {@link PdfDocument} owning this object.
     */
    get doc(): PdfDocument | null;
    /**
     * Gets the {@link OutlineNodeCollection} collection containing this object.
     */
    get owner(): OutlineNodeCollection | null;
    /**
     * Gets the parent {@link OutlineNode}.
     */
    get parent(): OutlineNode | null;
    /**
     * Gets or sets the title of the outline node.
     */
    get title(): string | null;
    /**
     * Gets or sets the title of the outline node.
     */
    set title(value: string | null);
    /**
     * Gets or sets the text color of the outline node.
     */
    get textColor(): Color;
    /**
     * Gets or sets the text color of the outline node.
     */
    set textColor(value: Color);
    /**
     * Gets or sets the text style of the outline node.
     */
    get textStyle(): OutlineNodeFontStyle;
    /**
     * Gets or sets the text style of the outline node.
     */
    set textStyle(value: OutlineNodeFontStyle);
    /**
     * Gets or sets the {@link DestinationBase} to be displayed when this {@link OutlineNode} is activated.
     * If both 'dest' and 'action' are specified,
     * the viewer application will determine the behavior, which may be unpredictable.
     * For consistent results, specify only one.
     */
    get dest(): DestinationBase | null;
    /**
     * Gets or sets the {@link DestinationBase} to be displayed when this {@link OutlineNode} is activated.
     * If both 'dest' and 'action' are specified,
     * the viewer application will determine the behavior, which may be unpredictable.
     * For consistent results, specify only one.
     */
    set dest(value: DestinationBase | DestinationProperties | null);
    /**
     * Gets or sets the {@link ActionBase} to be performed when this {@link OutlineNode} is activated.
     * If both 'dest' and 'action' are specified,
     * the viewer application will determine the behavior, which may be unpredictable.
     * For consistent results, specify only one.
     */
    get action(): ActionBase | null;
    /**
     * Gets or sets the {@link ActionBase} to be performed when this {@link OutlineNode} is activated.
     * If both 'dest' and 'action' are specified,
     * the viewer application will determine the behavior, which may be unpredictable.
     * For consistent results, specify only one.
     */
    set action(value: ActionProperties | ActionBase | null);
    /**
     * Gets or sets a value indicating whether this {@link OutlineNode} expanded and its child nodes are visible.
     */
    get expanded(): boolean;
    /**
     * Gets or sets a value indicating whether this {@link OutlineNode} expanded and its child nodes are visible.
     */
    set expanded(value: boolean);
    /**
     * Gets a value indicating whether {@link children} collection is not empty.
     */
    get hasChildren(): boolean;
    /**
     * Gets the {@link OutlineNodeCollection} collection containing child nodes.
     */
    get children(): OutlineNodeCollection;
}