import { CanvasState } from '../types/items';
export declare const useCanvas: import('pinia').StoreDefinition<"canvas", {
    canvasState: CanvasState;
    zoom: number;
    backgroundNaturalSize: {
        w: number;
        h: number;
    } | undefined;
    htmlButtonBehaviour: "download" | "save";
    activeSide: "front" | "back";
    isSideChangeAvailable: boolean;
    isFullscreen: boolean;
    isCodeActive: boolean;
    isCropping: boolean;
    isWrappedInModal: boolean;
    isBackButtonVisible: boolean;
    initialHtml: undefined | string;
}, {
    isStandardLetterSize(state: {
        canvasState: CanvasState;
        zoom: number;
        backgroundNaturalSize: {
            w: number;
            h: number;
        } | undefined;
        htmlButtonBehaviour: "download" | "save";
        activeSide: "front" | "back";
        isSideChangeAvailable: boolean;
        isFullscreen: boolean;
        isCodeActive: boolean;
        isCropping: boolean;
        isWrappedInModal: boolean;
        isBackButtonVisible: boolean;
        initialHtml: undefined | string;
    } & import('pinia').PiniaCustomStateProperties<{
        canvasState: CanvasState;
        zoom: number;
        backgroundNaturalSize: {
            w: number;
            h: number;
        } | undefined;
        htmlButtonBehaviour: "download" | "save";
        activeSide: "front" | "back";
        isSideChangeAvailable: boolean;
        isFullscreen: boolean;
        isCodeActive: boolean;
        isCropping: boolean;
        isWrappedInModal: boolean;
        isBackButtonVisible: boolean;
        initialHtml: undefined | string;
    }>): boolean;
    isLetterFrontTopLeft(): boolean;
}, {
    setCanvasState(state?: CanvasState): void;
    exportFunc(): {
        size: {
            w: number;
            h: number;
        };
        front: any;
        back: any;
    };
    setDefaultActiveSide(): void;
    setDefaultHtmlButtonBehaviour(): void;
    checkValidLetterSize(): void;
    checkIfIsWrappedInModal(): void;
    checkIfIsBackButtonVisible(): void;
    setInitialHtml(): Promise<void>;
}>;