import type { Tag, uint16 } from "../../types.ts";
import type { Reader } from "../binary/reader.ts";
/**
 * Style Attributes table (STAT)
 * Provides style information for variable fonts
 * Used for font selection and naming
 */
export interface StatTable {
    majorVersion: uint16;
    minorVersion: uint16;
    designAxisCount: uint16;
    designAxes: AxisRecord[];
    axisValueCount: uint16;
    axisValues: AxisValue[];
    elidedFallbackNameID?: uint16;
}
/**
 * Design axis record
 */
export interface AxisRecord {
    axisTag: Tag;
    axisNameID: uint16;
    axisOrdering: uint16;
}
/**
 * Axis value flags
 */
export declare const AxisValueFlags: {
    readonly OlderSiblingFontAttribute: 1;
    readonly ElidableAxisValueName: 2;
};
/**
 * Base axis value
 */
export interface AxisValueBase {
    format: number;
    axisIndex: uint16;
    flags: uint16;
    valueNameID: uint16;
}
/**
 * Format 1: Single axis value
 */
export interface AxisValueFormat1 extends AxisValueBase {
    format: 1;
    value: number;
}
/**
 * Format 2: Axis value range
 */
export interface AxisValueFormat2 extends AxisValueBase {
    format: 2;
    nominalValue: number;
    rangeMinValue: number;
    rangeMaxValue: number;
}
/**
 * Format 3: Linked axis value
 */
export interface AxisValueFormat3 extends AxisValueBase {
    format: 3;
    value: number;
    linkedValue: number;
}
/**
 * Format 4: Multiple axis values
 */
export interface AxisValueFormat4 {
    format: 4;
    axisCount: uint16;
    flags: uint16;
    valueNameID: uint16;
    axisValues: {
        axisIndex: uint16;
        value: number;
    }[];
}
export type AxisValue = AxisValueFormat1 | AxisValueFormat2 | AxisValueFormat3 | AxisValueFormat4;
/**
 * Parse STAT table
 */
export declare function parseStat(reader: Reader): StatTable;
/**
 * Get axis record by tag
 */
export declare function getAxisRecord(stat: StatTable, axisTag: Tag): AxisRecord | null;
/**
 * Get axis index by tag
 */
export declare function getAxisIndex(stat: StatTable, axisTag: Tag): number;
/**
 * Get axis values for a specific axis
 */
export declare function getAxisValuesForAxis(stat: StatTable, axisIndex: number): AxisValue[];
/**
 * Find axis value by name ID
 */
export declare function findAxisValueByNameId(stat: StatTable, nameId: uint16): AxisValue | null;
/**
 * Check if axis value is elidable
 */
export declare function isElidableAxisValue(axisValue: AxisValue): boolean;
/**
 * Check if axis value represents an older sibling font
 */
export declare function isOlderSiblingFont(axisValue: AxisValue): boolean;
/**
 * Get the value for a format 1-3 axis value
 */
export declare function getAxisValueNumber(axisValue: AxisValue): number | null;
/**
 * Match axis value to coordinates
 * Returns true if the axis value matches the given coordinates
 */
export declare function matchAxisValue(axisValue: AxisValue, coords: Map<number, number>): boolean;