export declare const clamp: (value: number, min: number, max: number) => number;
export declare class LifeCanvasDrawer {
    private canvas;
    private context;
    private image_data;
    private image_data_data;
    private pixel_ratio;
    private cell_color_rgb;
    private canvas_width;
    private canvas_height;
    private _canvas_offset_x;
    private _canvas_offset_y;
    private _cell_width;
    private _default_cell_width;
    border_width: number;
    background_color: string | null;
    cell_color: string | null;
    constructor();
    get default_cell_width(): number;
    set default_cell_width(value: number);
    private get canvas_offset_x();
    private set canvas_offset_x(value);
    private get canvas_offset_y();
    private set canvas_offset_y(value);
    get cell_width(): number;
    set cell_width(value: number);
    private set_cell_width;
    init(canvas: HTMLCanvasElement): boolean;
    set_size(width: number, height: number): void;
    private draw_node;
    private fill_square;
    redraw(node: any): void;
    private draw_grid_lines;
    pan(dx: number, dy: number): void;
    center_view(): void;
    private zoom;
    zoom_at(zoom_factor: number, pinch_origin_x: number, pinch_origin_y: number): void;
    zoom_centered(out: boolean): void;
    zoom_to(level: number): void;
    fit_bounds(bounds: {
        right: number;
        left: number;
        bottom: number;
        top: number;
    }, padding?: {
        right?: number;
        left?: number;
        bottom?: number;
        top?: number;
    }): void;
    pixel2cell(x: number, y: number): {
        x: number;
        y: number;
    };
    private color2rgb;
}