import type { BufferWindowImage, ContentUpdate, GraphicsWindowOperation, InputUpdate, TextRun, WindowStyles, WindowUpdate as SizeUpdate } from '../common/protocol.js';
import type { GlkArray, GlkWindow } from './interface.js';
import { type Stream, WindowStream } from './streams.js';
export type Window = BlankWindow | BufferWindow | GraphicsWindow | GridWindow | PairWindow;
type WindowTypes = 'blank' | 'buffer' | 'graphics' | 'grid' | 'pair';
export interface WindowBox {
    bottom: number;
    left: number;
    right: number;
    top: number;
}
export interface WindowUpdate {
    content: ContentUpdate | null;
    input: InputUpdate | null;
    size: SizeUpdate | null;
}
declare abstract class WindowBase implements GlkWindow {
    box: WindowBox;
    disprock: number;
    echostr: Stream | null;
    input: InputUpdate;
    next: Window | null;
    parent: PairWindow | null;
    prev: Window | null;
    rock: number;
    str: WindowStream;
    abstract type: WindowTypes;
    abstract typenum: number;
    constructor(rock: number);
    clear(): void;
    put_string(_str: string, _style?: string): void;
    set_css(_name: string, _val?: string | number): void;
    set_hyperlink(_val: number): void;
    set_style(_style: string): void;
    update(): WindowUpdate;
}
export declare class BlankWindow extends WindowBase {
    type: "blank";
    typenum: number;
}
export declare abstract class TextWindow extends WindowBase {
    cleared: boolean;
    line_input_buf?: GlkArray;
    request_echo_line_input: boolean;
    stylehints: WindowStyles;
    uni_input?: boolean;
    constructor(rock: number, stylehints: WindowStyles);
    update(): WindowUpdate;
}
export interface Paragraph {
    /** Append to last input */
    append?: boolean;
    /** Line data */
    content: ParagraphTextRun[];
    /** Paragraph breaks after floating images */
    flowbreak?: boolean;
}
type ParagraphTextRun = BufferWindowImage | TextRun;
export declare class BufferWindow extends TextWindow {
    content: Paragraph[];
    echo_line_input: boolean;
    private last_par;
    private last_textrun;
    type: "buffer";
    typenum: number;
    constructor(rock: number, stylehints: WindowStyles);
    clear(): void;
    clear_content(): void;
    private clone_textrun;
    put_image(img: BufferWindowImage): void;
    put_string(str: string, style?: string): void;
    set_css(name: string, val?: string | number): void;
    set_flow_break(): void;
    set_hyperlink(val?: number): void;
    set_style(style: string): void;
    update(): WindowUpdate;
}
export declare class GraphicsWindow extends WindowBase {
    draw: GraphicsWindowOperation[];
    height: number;
    type: "graphics";
    typenum: number;
    uni_input?: boolean;
    width: number;
    clear(): void;
    update(): WindowUpdate;
}
interface GridLine {
    content: TextRun[];
    changed: boolean;
}
export declare class GridWindow extends TextWindow {
    private current_styles;
    height: number;
    lines: GridLine[];
    type: "grid";
    typenum: number;
    width: number;
    x: number;
    y: number;
    clear(): void;
    fit_cursor(): true | undefined;
    put_string(str: string, style?: string): void;
    set_css(name: string, val?: string | number): void;
    set_hyperlink(val: number): void;
    set_style(style: string): void;
    update_size(height: number, width: number): void;
    update(): WindowUpdate;
}
export declare class PairWindow extends WindowBase {
    backward: boolean;
    child1: Window | null;
    child2: Window | null;
    border: boolean;
    dir: number;
    fixed: boolean;
    key: Window | null;
    size: number;
    type: "pair";
    typenum: number;
    vertical: boolean;
    constructor(keywin: Window, method: number, size: number);
}
export {};