import { GetColorCallBack } from './types';
/**
 * Defines one canvas
 */
declare class CanvasComponent {
    /**
     * The canvas element
     */
    private $el;
    /**
     * This is a hidden canvas element
     * which is used to redraw all the elements from the canvas
     * in unique colors.
     *
     * This way an element can be easily identified from this hit canvas
     * just by using the color in O(1)
     *
     * Otherwise to identify an element in the canvas it will take O(n)
     *
     */
    private $hitEl;
    /**
     * The color generator for generating new color
     */
    private colorGenerator;
    /**
     * The current hovering color
     */
    private currentHoveringColor;
    /**
     * For storing the on hover callback
     */
    private onHoverCB?;
    /**
     * For storing the on click callback
     */
    private onClickCB?;
    /**
     * For constructing a new canvas component
     *
     * @param {HTMLCanvasElement} $el
     */
    constructor($el: HTMLCanvasElement);
    /**
     * Clears the canvas
     */
    clearCanvas(): void;
    /**
     * Set the maximum width and height
     *
     * @param {number} height
     * @param {number} width
     */
    setMaxWidthAndHeight(height: number, width: number): void;
    /**
     * Get the hit 2d context
     *
     * @return {CanvasComponent}
     */
    getHitContext(): CanvasRenderingContext2D;
    /**
     * Get the 2d context
     *
     * @return {CanvasRenderingContext2D}
     */
    getContext(): CanvasRenderingContext2D;
    /**
     * Get the next color from the color generator
     *
     * @return {string}
     */
    getNextColor(): string;
    /**
     * On hover get the canvas hit color
     *
     * @param {GetColorCallBack} cb
     */
    onHover(cb: GetColorCallBack): void;
    /**
     * On click of canvas get the hit color
     *
     * @param {GetColorCallBack} cb
     */
    onClick(cb: GetColorCallBack): void;
}
export default CanvasComponent;