import { IProtected, ICursorPage, IKeyBoardSettings, IAnnotationCallbacks } from "./core/types";
import { NrrdState } from "./coreTools/NrrdState";
import { GuiState } from "./coreTools/GuiState";
/**
 * CanvasState — Pure state container.
 *
 * Holds all shared mutable state that was previously scattered across the
 * CommToolsData base class.  No rendering logic lives here; rendering is
 * handled by {@link RenderingUtils}.
 *
 * Created once by NrrdTools and shared (by reference) with DrawToolCore,
 * RenderingUtils, DragOperator, and all legacy Tool instances.
 */
export declare class CanvasState {
    baseCanvasesSize: number;
    /** External annotation callbacks — set via draw() options */
    annotationCallbacks: IAnnotationCallbacks;
    /** Whether the keyboard-config dialog is open (suppresses all shortcuts). */
    configKeyBoard: boolean;
    /** Active keyboard shortcut bindings. */
    keyboardSettings: IKeyBoardSettings;
    nrrd_states: NrrdState;
    gui_states: GuiState;
    protectedData: IProtected;
    cursorPage: ICursorPage;
    constructor(container: HTMLElement, mainAreaContainer: HTMLElement, options?: {
        layers?: string[];
    });
    private generateSystemCanvases;
    private generateLayerTargets;
}