import type { FontOptions, LabelBoxOptions, Toggleable } from '../series/cartesian/commonOptions';
import type { AgChartCallbackParams, Formatter, HighlightState, Styler } from './callbackOptions';
import type { ContextDefault, FontSize, OverflowStrategy, PixelSize, TextWrap } from './types';
export interface AgChartLabelStyleOptions extends Toggleable, FontOptions, LabelBoxOptions {
}
export interface AgChartLabelStylerParams<TDatum, TContext> extends AgChartCallbackParams<TDatum, TContext>, AgChartLabelStyleOptions {
    /** Indicates whether the element is highlighted. */
    highlighted?: boolean;
    /** The specific highlight state of the element. */
    highlightState?: HighlightState;
}
/**
 * Represents the configuration options for labels in an AgCharts.
 *
 * Labels are used to display textual information alongside data points in a chart.
 *
 * @typeparam TDatum - The type of data associated with the chart.
 * @typeparam TParams - The type of parameters expected by the label formatter function.
 */
export interface AgChartLabelOptions<TDatum, TParams, TContext = ContextDefault> extends AgChartLabelStyleOptions {
    /** A custom formatting function used to convert data values into text for display by labels. */
    formatter?: Formatter<AgChartLabelFormatterParams<TDatum, TContext> & TParams>;
    /** Format string used when rendering labels. */
    format?: string;
    /** Function used to style individual datum labels. */
    itemStyler?: Styler<AgChartLabelStylerParams<TDatum, TContext> & TParams, AgChartLabelStyleOptions>;
}
export interface AgChartLabelFormatterParams<TDatum, TContext = ContextDefault> extends AgChartCallbackParams<TDatum, TContext> {
    /** The default label value that would have been used without a formatter. */
    value: any;
}
export interface AgChartAutoSizedBaseLabelOptions<TDatum, TParams, TContext = ContextDefault> extends AgChartLabelOptions<TDatum, TParams, TContext> {
    /**
     * Line height to use for the label.
     */
    lineHeight?: FontSize;
    /**
     * If the label does not fit in the container, setting this will allow the label to pick a font size between its normal `fontSize` and `minimumFontSize` to fit within the container.
     */
    minimumFontSize?: FontSize;
    /**
     * Text wrapping strategy for labels.
     * - `'always'` will always wrap text to fit within the tile.
     * - `'hyphenate'` is similar to `'always'`, but inserts a hyphen (`-`) if forced to wrap in the middle of a word.
     * - `'on-space'` will only wrap on white space. If there is no possibility to wrap a line on space and satisfy the tile dimensions, the text will be truncated.
     * - `'never'` disables text wrapping.
     *
     * Default: `'on-space'`
     */
    wrapping?: TextWrap;
    /**
     * Adjusts the behaviour of labels when they overflow
     * - `'ellipsis'` will truncate the text to fit, appending an ellipsis (...)
     * - `'hide'` only displays the label if it completely fits within its bounds, and removes it if it would overflow
     */
    overflowStrategy?: OverflowStrategy;
}
export interface AgChartAutoSizedLabelOptions<TDatum, TParams, TContext = ContextDefault> extends AgChartAutoSizedBaseLabelOptions<TDatum, TParams, TContext> {
    /** The distance between the label and secondary label, if both are present */
    spacing?: PixelSize;
}
export interface AgChartAutoSizedSecondaryLabelOptions<TDatum, TParams, TContext = ContextDefault> extends AgChartAutoSizedBaseLabelOptions<TDatum, TParams, TContext> {
}