import { G, Rect, Text, Circle } from '@svgdotjs/svg.js';
import { PianoElement, KeyEventHandler } from './PianoElement';
import { INoteValue, NoteValue } from './Note';
import { InstrumentSettings } from './InstrumentSettings';
export declare class Key extends PianoElement {
    private _note;
    get note(): NoteValue;
    private _displayNote;
    private get displayNote();
    protected _visual?: Rect;
    protected _label?: G;
    protected _labelText?: Text;
    protected _highlight?: Circle;
    protected highlightSize: number;
    protected width: number;
    protected height: number;
    protected isPressed: boolean;
    protected get isHighlighted(): boolean;
    protected get isSpecialHighlighted(): boolean;
    constructor(container: G, instrumentSettings: InstrumentSettings, onKeyPress: KeyEventHandler, onKeyRelease: KeyEventHandler, width: number, height: number, note: NoteValue);
    protected addMouseListeners(): void;
    private isMouseDown;
    private handleInputDown;
    private handleInputUp;
    press(displayNote: INoteValue): void;
    release(): void;
    backward(): void;
    private accidentalToUnicode;
    protected createLabel(color: string): void;
    protected updateLabel(): void;
    protected createHighlight(size: number): void;
    protected layout(): void;
    private getNoteIfHighlighted;
}