import { ReadonlySignal, Signal } from '@preact/signals-core';
import { Inset, ContainerProperties, MergedProperties, createContainerState, createCustomContainerState, createIconState, createTextState, createSvgState, createRootState, createImageState, createInputState, createContentState, RootContext } from '@pmndrs/uikit/internals';
import { ForwardedRef, RefObject } from 'react';
import { Vector2Tuple, Mesh, Matrix4 } from 'three';
export { RootContext } from '@pmndrs/uikit/internals';
export type ComponentInternals<T = ContainerProperties> = {
    /**
     * the ui's root object giving access to its size and the pixelSize
     */
    root: Pick<RootContext, 'pixelSize' | 'size'>;
    /**
     * matrix in relation to the root uikit element
     */
    globalMatrix: ReadonlySignal<Matrix4 | undefined>;
    /**
     * the size of one pixel
     * @deprecated use root.pixelSize
     */
    pixelSize: ReadonlySignal<number>;
    /**
     *  the outer width/height of the element
     */
    size: ReadonlySignal<Vector2Tuple | undefined>;
    /**
     * the offset between from the element's center to its parent's center
     */
    center: ReadonlySignal<Vector2Tuple | undefined>;
    /**
     * a tuple containing the border sizes on all 4 sides `[top, right, bottom, left]`
     */
    borderInset: ReadonlySignal<Inset | undefined>;
    /**
     *  a tuple containing the padding sizes on all 4 sides `[top, right, bottom, left]`
     */
    paddingInset: ReadonlySignal<Inset | undefined>;
    /**
     * the x/y scroll position of the children when the element is scrollable
     */
    scrollPosition?: Signal<Vector2Tuple | undefined>;
    /**
     * the maximum x/y scroll position, based on the size of the children
     */
    maxScrollPosition?: ReadonlySignal<Partial<Vector2Tuple>>;
    /**
     * the mesh added to the scene graph to capture events
     */
    interactionPanel: Mesh;
    /**
     * exploses whether the element is fully clipped by some ancestor
     */
    isClipped?: ReadonlySignal<boolean>;
    /**
     * exploses whether the element is not fully clipped, has a size greater then 0, is not set to invisible, or display unequal to "none" by itself and all ancestors
     */
    isVisible: ReadonlySignal<boolean>;
    /**
     * set the styles of the element (the provided styles have a higher precedence then the element's properties)
     */
    setStyle(style: T | undefined, replace?: boolean): void;
    /**
     * get the object last written to `setStyle`
     */
    getStyle(): Readonly<T> | undefined;
    /**
     * read the current value for any property (combines default properties, direct properties, and styles)
     * @param key the name of the property
     */
    getComputedProperty<K extends keyof T>(key: K): T[K] | undefined;
};
export declare function useComponentInternals<T, O = {}>(ref: ForwardedRef<ComponentInternals<T> & O>, root: RootContext, styleSignal: Signal<T | undefined>, internals: ReturnType<typeof createContainerState | typeof createContentState | typeof createImageState | typeof createRootState | typeof createSvgState | typeof createTextState | typeof createIconState | typeof createInputState | typeof createCustomContainerState> & {
    isClipped?: Signal<boolean>;
    scrollPosition?: Signal<Vector2Tuple>;
    mergedProperties: Signal<MergedProperties>;
}, interactionPanel: Mesh | RefObject<Mesh | null>, additional?: O): void;