import { ColorInput } from '../core/color';
import { TextOptions } from '../core/document-types';
import { PdfDocument } from '../core/pdf-document';
import { GridOptions, GridResult } from '../table/table-types';
export interface FlowOptions {
    startY?: number;
    gap?: number;
}
export declare class FlowComposer {
    private readonly doc;
    private cursor;
    private readonly gap;
    constructor(doc: PdfDocument, options?: FlowOptions);
    get y(): number;
    get remainingHeight(): number;
    get width(): number;
    moveTo(y: number): this;
    advance(amount: number): this;
    ensureSpace(required: number): this;
    breakPage(): this;
    heading(text: string, options?: TextOptions & {
        spacingAfter?: number;
    }): this;
    paragraph(text: string, options?: TextOptions & {
        spacingAfter?: number;
    }): this;
    spacer(height: number): this;
    rule(options?: {
        color?: ColorInput;
        width?: number;
        spacingAfter?: number;
    }): this;
    grid(options: GridOptions & {
        spacingAfter?: number;
    }): GridResult;
    custom(render: (doc: PdfDocument, y: number, width: number) => number, spacingAfter?: number): this;
}
export declare function createFlow(doc: PdfDocument, options?: FlowOptions): FlowComposer;