import { Widget } from './Widget.js';
import { SingleParent } from './SingleParent.js';
import { WidgetEvent } from '../events/WidgetEvent.js';
import type { Rect } from '../helpers/Rect.js';
/**
 * A {@link SingleParent} which contains a single child and automatically paints
 * the child, adds padding, propagates events (if enabled) and handles layout.
 *
 * Can be constrained to a specific type of children.
 *
 * @category Widget
 */
export declare abstract class BaseContainer<W extends Widget = Widget> extends SingleParent<W> {
    protected onThemeUpdated(property?: string | null): void;
    protected handleEvent(event: WidgetEvent): Widget | null;
    protected handlePreLayoutUpdate(): void;
    protected handlePostLayoutUpdate(): void;
    protected handleResolveDimensions(minWidth: number, maxWidth: number, minHeight: number, maxHeight: number): void;
    resolvePosition(x: number, y: number): void;
    protected handlePainting(dirtyRects: Array<Rect>): void;
}