import type { WebGLRenderer } from "three";
import type { UILayer } from "../../layers/UILayer/UILayer";
import { UIColor } from "../../miscellaneous/color/UIColor";
import type { UIColorConfig } from "../../miscellaneous/color/UIColor.Internal";
import { UIInsets } from "../../miscellaneous/insets/UIInsets";
import type { UIInsetsConfig } from "../../miscellaneous/insets/UIInsets.Internal";
import { UITextSpan } from "../../miscellaneous/text-span/UITextSpan";
import { UITextStyle } from "../../miscellaneous/text-style/UITextStyle";
import { UIElement } from "../UIElement/UIElement";
import type { UITextContent } from "./UIText.Interfaces";
import type { UITextOptions } from "./UIText.Internal";
import { UITextDirection, UITextResizeMode } from "./UIText.Internal";
/** Canvas-based text rendering element */
export declare class UIText extends UIElement {
    /** Default style applied to all text spans */
    readonly commonStyle: UITextStyle;
    private readonly colorInternal;
    private readonly paddingInternal;
    private readonly canvas;
    private readonly context;
    private texture;
    private contentInternal;
    private contentDirty;
    private maxLineWidthInternal;
    private maxLineWidthDirty;
    private resizeModeInternal;
    private resizeModeDirty;
    private directionInternal;
    private directionDirty;
    private isRTL;
    private lastWidth;
    private lastHeight;
    private textChunks;
    /**
     * Creates a new UIText instance.
     *
     * @param layer - Layer containing this element
     * @param content - Text content as string or styled spans
     * @param options - Configuration options
     */
    constructor(layer: UILayer, content: UITextContent, options?: Partial<UITextOptions>);
    /** Multiplicative tint. Alpha channel controls opacity. */
    get color(): UIColor;
    /** Text content as array of styled spans */
    get content(): UITextSpan[];
    /** Maximum line width before wrapping in pixels */
    get maxLineWidth(): number;
    /** Text padding in world units */
    get padding(): UIInsets;
    /** Controls how text adapts to element size */
    get resizeMode(): UITextResizeMode;
    /** Base direction used for bidirectional text reordering */
    get direction(): UITextDirection;
    /** Multiplicative tint. Alpha channel controls opacity. */
    set color(value: UIColorConfig);
    /** Text content as string, span config, or array */
    set content(value: UITextContent);
    /** Maximum line width before wrapping in pixels */
    set maxLineWidth(value: number);
    /** Text padding in world units */
    set padding(value: UIInsetsConfig);
    /** Controls how text adapts to size constraints */
    set resizeMode(value: UITextResizeMode);
    /** Base direction used for bidirectional text reordering */
    set direction(value: UITextDirection);
    /** Removes element and frees resources */
    destroy(): void;
    protected onWillRender(renderer: WebGLRenderer, deltaTime: number): void;
    private tryToRenderTextScaleMode;
    private tryToRenderTextBreakMode;
    private updateProperties;
    private buildTextChunks;
    private checkDimensionsDirty;
    private setDimensionsDirtyFalse;
    private checkContentDirty;
    private setContentDirtyFalse;
}