import { DwfViewer as BaseDwfViewer } from './DwfViewerBase.js';
import type { DwfViewerOptions as BaseDwfViewerOptions, LoadOptions as BaseLoadOptions } from './DwfViewerBase.js';
import type { RenderStats } from '../format/types.js';
import { type ColorContrastOptions } from '../render/contrast.js';
export interface DwfViewerOptions extends BaseDwfViewerOptions, ColorContrastOptions {
    /**
     * Overrides vector, text and model-material colors with one fixed color.
     * Images, page background, geometry, line weights and opacity are preserved.
     * Omit the value to render source colors.
     */
    monochromeColor?: string;
}
export interface LoadOptions extends BaseLoadOptions, ColorContrastOptions {
    /** Per-load override for the viewer's monochrome color. */
    monochromeColor?: string;
}
/**
 * Adds a non-destructive monochrome plot-style view on top of the native DWF
 * renderer. The parsed document remains source-colored for metadata consumers.
 */
export declare class DwfViewer extends BaseDwfViewer {
    private monochromeColor?;
    private preparedRenderer?;
    private preparedColor?;
    private contrastOptions;
    constructor(container: HTMLElement, options?: DwfViewerOptions);
    load(input: ArrayBuffer | Uint8Array | Blob | File, options?: LoadOptions): Promise<void>;
    /** Switches between source colors (undefined) and a fixed plot color. */
    setMonochromeColor(value?: string): void;
    getMonochromeColor(): string | undefined;
    setContrastOptions(options: Pick<ColorContrastOptions, 'contrastMode' | 'minColorContrast'>): void;
    render(): Promise<RenderStats | undefined>;
    dispose(): void;
    private updateMonochromeColor;
}