import { LitElement, PropertyValues } from 'lit';
import { AppState, Pen } from '@infinite-canvas-tutorial/ecs';
import { ExtendedAPI } from '../API';
export declare class Penbar extends LitElement {
    static styles: import("lit").CSSResult;
    appState: AppState;
    api: ExtendedAPI;
    /**
     * Record the last draw pen, so that when the penbar is changed, the last draw pen will be selected.
     */
    lastDrawPen: Pen.DRAW_RECT | Pen.DRAW_ELLIPSE | Pen.DRAW_LINE | Pen.DRAW_ARROW | Pen.DRAW_ROUGH_RECT | Pen.DRAW_ROUGH_ELLIPSE | Pen.DRAW_ROUGH_LINE;
    private binded;
    private previousPen;
    private previousPenbarVisible;
    shouldUpdate(changedProperties: PropertyValues): boolean;
    private handlePenChanged;
    private setPenWithKeyboard;
    private handleKeyDown;
    disconnectedCallback(): void;
    render(): import("lit").TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'ic-spectrum-penbar': Penbar;
    }
}