import { BCGBarcode1D, draw } from 'barcode-bakery-common';
/**
 * Constructor.
 */
declare class BCGi25 extends BCGBarcode1D {
    private checksum;
    private ratio;
    constructor();
    /**
     * Sets if we display the checksum.
     *
     * @param checksum Displays the checksum.
     */
    setChecksum(checksum: boolean): void;
    /**
     * Sets the ratio of the black bar compared to the white bars.
     *
     * @param ratio The ratio.
     */
    setRatio(ratio: number | string): void;
    /**
     * Draws the barcode.
     *
     * @param image The image.
     */
    draw(image: draw.Surface): void;
    /**
     * Returns the maximal size of a barcode.
     * [0]->width
     * [1]->height
     *
     * @param width The width.
     * @param height The height.
     * @return An array, [0] being the width, [1] being the height.
     */
    getDimension(width: number, height: number): [number, number];
    /**
     * Validates the input.
     */
    protected validate(): void;
    /**
     * Overloaded method to calculate checksum.
     */
    _calculateChecksum(): void;
    /**
     * Overloaded method to display the checksum.
     *
     * @return The checksum value.
     */
    protected processChecksum(): string | null;
    /**
     * Changes the size of the bars based on the ratio
     *
     * @param bar The bars.
     * @return New bars.
     */
    private changeBars;
}
export { BCGi25 };