import type { AgAxisLabelFormatterParams, AgAxisLabelStylerParams, AgBaseAxisLabelStyleOptions, FontStyle, FontWeight, Formatter, Styler } from 'ag-charts-types';
import { BaseProperties } from '../../util/properties';
import type { ChartAxisLabel, ChartAxisLabelFlipFlag } from '../chartAxis';
export declare class AxisLabel extends BaseProperties implements ChartAxisLabel {
    enabled: boolean;
    fontStyle?: FontStyle;
    fontWeight?: FontWeight;
    fontSize: number;
    fontFamily: string;
    /**
     * The padding between the labels and the ticks.
     */
    spacing: number;
    /**
     * Minimum gap in pixels between the axis labels before being removed to avoid collisions.
     */
    minSpacing?: number;
    /**
     * The color of the labels.
     * Use `undefined` rather than `rgba(0, 0, 0, 0)` to make labels invisible.
     */
    color?: string;
    /**
     * Custom label rotation in degrees.
     * Labels are rendered perpendicular to the axis line by default.
     * Or parallel to the axis line, if the {@link parallel} is set to `true`.
     * The value of this config is used as the angular offset/deflection
     * from the default rotation.
     */
    rotation?: number;
    /**
     * Avoid axis label collision by automatically reducing the number of ticks displayed. If set to `false`, axis labels may collide.
     */
    avoidCollisions: boolean;
    /**
     * By default, labels and ticks are positioned to the left of the axis line.
     * `true` positions the labels to the right of the axis line.
     * However, if the axis is rotated, it's easier to think in terms
     * of this side or the opposite side, rather than left and right.
     * We use the term `mirror` for conciseness, although it's not
     * true mirroring - for example, when a label is rotated, so that
     * it is inclined at the 45 degree angle, text flowing from north-west
     * to south-east, ending at the tick to the left of the axis line,
     * and then we set this config to `true`, the text will still be flowing
     * from north-west to south-east, _starting_ at the tick to the right
     * of the axis line.
     */
    mirrored: boolean;
    /**
     * The side of the axis line to position the labels on.
     * -1 = left (default)
     * 1 = right
     */
    getSideFlag(): ChartAxisLabelFlipFlag;
    /**
     * Labels are rendered perpendicular to the axis line by default.
     * Setting this config to `true` makes labels render parallel to the axis line
     * and center aligns labels' text at the ticks.
     */
    parallel: boolean;
    itemStyler?: Styler<AgAxisLabelStylerParams, AgBaseAxisLabelStyleOptions>;
    /**
     * In case {@param value} is a number, the {@param fractionDigits} parameter will
     * be provided as well. The `fractionDigits` corresponds to the number of fraction
     * digits used by the tick step. For example, if the tick step is `0.0005`,
     * the `fractionDigits` is 4.
     */
    formatter?: Formatter<AgAxisLabelFormatterParams>;
    format?: string;
    getFont(): string;
}