import { CalendarAdapter, CalendarMode, DateMath, DateValue } from '../types.js';
export interface ViewYearMonth {
    year: number;
    month: number;
}
export declare function viewYearMonthOf(mode: CalendarMode, adapter: CalendarAdapter, date: Date): ViewYearMonth;
export declare function firstOfViewMonth(mode: CalendarMode, adapter: CalendarAdapter, year: number, month: number): Date;
export declare function daysInViewMonth(mode: CalendarMode, adapter: CalendarAdapter, dateMath: DateMath, year: number, month: number): number;
export declare function lastOfViewMonth(mode: CalendarMode, adapter: CalendarAdapter, dateMath: DateMath, year: number, month: number): Date;
export declare function viewYearBounds(mode: CalendarMode, adapter: CalendarAdapter): {
    min: number;
    max: number;
};
export declare function clampViewYear(mode: CalendarMode, adapter: CalendarAdapter, year: number): number;
export interface MonthSpan {
    start: ViewYearMonth;
    end: ViewYearMonth;
}
export declare function crossCalendarMonthSpan(mode: CalendarMode, adapter: CalendarAdapter, dateMath: DateMath, year: number, month: number): MonthSpan;
export declare function buildViewMonthCells(mode: CalendarMode, adapter: CalendarAdapter, dateMath: DateMath, year: number, month: number): Array<DateValue | null>;