import { ToolbarItem } from "@dt/core-viewer";
import { GcImageViewer } from "../../GcImageViewer";
import { SecondToolbarControl } from "./SecondToolbarControl";
import { SecondToolbarType } from "../../Models";
/**
 * SecondToolbar API.
 *  @ignore exclude from docs
 **/
export declare class SecondToolbar {
    private _viewer;
    private _layoutMode;
    /**
     * Available toolbar items.
     **/
    items: {
        [key: string]: ToolbarItem;
    };
    /**
     * Second toolbar control.
     **/
    secondToolbarControl: SecondToolbarControl;
    private _marginTop;
    /**
     * Constructor.
     * @param _viewer
     */
    constructor(_viewer: GcImageViewer);
    /**
     * Indicates if the second toolbar is currently displayed.
     **/
    get isShown(): boolean;
    /**
    * Active second toolbar layout mode (second toolbar key).
    **/
    get layoutMode(): SecondToolbarType;
    /**
    * Active second toolbar layout type.
    **/
    set layoutMode(mode: SecondToolbarType);
    get marginTop(): number;
    set marginTop(val: number);
    /**
     * Register toolbar item.
     * @param toolbarItem
     */
    addItem(toolbarItem: ToolbarItem): void;
    /**
     * Show second toolbar.
     * Available toolbar keys:
     * @param toolbarKey
     */
    show(mode: SecondToolbarType | string): Promise<void>;
    /**
     * Hide second toolbar.
     **/
    hide(): Promise<void>;
    confirmChanges(): void;
    cancelChanges(): void;
    /**
     * Undo viewer transaction step. Return true if undo operation is consumed.
     **/
    undoTransactionStep(): boolean | void;
    /**
     * Redo viewer transaction step. Return true if redo operation is consumed.
     **/
    redoTransactionStep(): boolean | void;
    raiseStateChanged(): void;
    private static createControl;
}