import { XMLNode } from 'flat-svg';
import { GeometricBounds, Transform } from './types';
export type TransformMatrix = [number, number, number, number, number, number];
export declare const IdentityTransformMatrix: TransformMatrix;
export declare function parseIDMLTransform(str: string | undefined): TransformMatrix;
export declare function normalizeTransformMatrixForGivenOrigin(matrix: TransformMatrix, // [a, b, c, d, e, f]
[originX, originY]: [number, number], [internalOriginX, internalOriginY]: [number, number]): TransformMatrix;
export declare function ensureNumber(value: unknown): number | undefined;
export declare function serializeNumber(value?: number, defaultValue?: number): string;
export declare function ensureArray(value: string | null | undefined): number[] | undefined;
export declare function cssifyIDMLTransform(transformMatrix: TransformMatrix): Transform;
export declare function createIDMLTransform(transform: Transform): [number, number, number, number, number, number];
export declare function parseIDMLGeometricBounds(geometricBoundsString: string | undefined): {
    x: number;
    y: number;
    width: number;
    height: number;
};
export declare function createIDMLGeometricBounds(bounds: GeometricBounds): number[];
export type IDMLElementAttributeDescriptor = {
    source: 'attribute';
    value: string | null;
};
export type IDMLElementPropertyDescriptor = {
    source: 'property';
    propGroup: string;
    value: string | null | {
        attributes: {
            [k: string]: string;
        };
        value: string | null;
    }[];
    attributes: {
        [k: string]: string;
    };
};
export type IDMLElementProperty = IDMLElementAttributeDescriptor | IDMLElementPropertyDescriptor;
export declare function getIDMLElementProperties(element: Element, allowedPropGroups: string[], excludeKeys?: string[]): {
    [k: string]: IDMLElementProperty;
};
export declare function flattenIDMLProperties(props: ReturnType<typeof getIDMLElementProperties>): {
    [k: string]: string | {
        attributes: {
            [k: string]: string;
        };
        value: string | null;
    }[] | undefined;
};
export declare function serializeElement(tagName: string, modifiedProps: {
    [k: string]: string | number | boolean | undefined;
}, idOrElement: string | Element | undefined, root: HTMLElement, allowedPropGroups: string[], customChildrenNodes?: XMLNode[]): import("flat-svg").ElementNode;
export declare function calculateTransformForOrigin({ rotate, scaleX, scaleY, translateX, translateY }: Transform, [originX, originY]: [number, number], internalOrigin: [number, number]): Transform;
export declare function normalizeTransformForGivenOrigin(transform: Transform, [originX, originY]: [number, number], internalOrigin: [number, number]): Transform;
export declare function ensurePropertyArray(value: string | null | undefined): string[];
export declare function ensureEnumArray(value: string | null | undefined): string[];
export declare function ensureBoolean(value: string | null | undefined, defaultValue?: boolean): boolean;
export declare function serializeArray(value?: number[]): string;
export declare function getChildTagValue<T>(element: Element | undefined, tagName: string, converter: (str: string) => T, defaultValue: T): T;
export declare function getChildTagValueOptional<T>(element: Element | undefined, tagName: string, converter: (str: string) => T, defaultValue: T): T | undefined;
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