import { Theme } from '../theme/Theme.js';
import { Button } from './Button.js';
import { ClickableWidgetProperties } from './ClickableWidgetProperties.js';
import type { Widget, WidgetProperties } from './Widget.js';
import type { Rect } from '../helpers/Rect.js';
import type { WidgetAutoXML } from '../xml/WidgetAutoXML.js';
/**
 * Optional FilledButton constructor properties.
 *
 * @category Widget
 */
export interface FilledButtonProperties extends WidgetProperties {
    /** Sets {@link FilledButton#forced}. */
    forced?: boolean;
}
/**
 * A {@link Button} which overrides the canvas colour, meaning that it has a
 * filled background.
 *
 * Can be constrained to a specific type of children.
 *
 * This button version can also be "forced down"; the button becomes similar to
 * being pressed, visually. Useful for implementing widgets such as
 * {@link ShiftKey}.
 *
 * @category Widget
 */
export declare class FilledButton<W extends Widget = Widget> extends Button<W> {
    static autoXML: WidgetAutoXML;
    /** Theme property used for overriding the canvas colour. */
    private backgroundProperty;
    /** Is the button currently forced down? */
    forced: boolean;
    /** The inherited theme for the child */
    private childTheme;
    constructor(child: W, properties?: Readonly<FilledButtonProperties & ClickableWidgetProperties>);
    protected activate(): void;
    /**
     * Update the background fill.
     *
     * Sets {@link FilledButton#backgroundProperty} depending on
     * {@link FilledButton#forced} and {@link ButtonClickHelper#clickState},
     * sets {@link FilledButton#childTheme}.{@link Theme#canvasFill} and marks
     * the widget as dirty.
     */
    private updateBackground;
    private getBackgroundFill;
    set inheritedTheme(theme: Theme | undefined);
    get inheritedTheme(): Theme | undefined;
    protected onThemeUpdated(property?: string | null): void;
    protected handlePreLayoutUpdate(): void;
    protected handlePainting(dirtyRects: Array<Rect>): void;
}