import { EventReactions, EventGuards, Guard, TemplateState, TemplateStateMachine } from "../../being/interfaces";
import { Point } from "../../utils/misc";
import { CanvasOperator, KmtInputContext } from "./kmt-input-context";
/**
 * @description The possible states of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export type KmtInputStates = "IDLE" | "READY_TO_PAN_VIA_SPACEBAR" | "READY_TO_PAN_VIA_SCROLL_WHEEL" | "PAN" | "INITIAL_PAN" | "PAN_VIA_SCROLL_WHEEL";
/**
 * @description The payload for the pointer event.
 *
 * @category Input State Machine
 */
export type PointerEventPayload = {
    x: number;
    y: number;
};
type EmptyPayload = {};
/**
 * @description The payload for the scroll event.
 *
 * @category Input State Machine
 */
export type ScrollEventPayload = {
    deltaX: number;
    deltaY: number;
};
/**
 * @description The payload for the scroll with ctrl event.
 *
 * @category Input State Machine
 */
export type ScrollWithCtrlEventPayload = {
    deltaX: number;
    deltaY: number;
    x: number;
    y: number;
};
/**
 * @description The payload mapping for the events of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export type KmtInputEventMapping = {
    leftPointerDown: PointerEventPayload;
    leftPointerUp: PointerEventPayload;
    leftPointerMove: PointerEventPayload;
    spacebarDown: EmptyPayload;
    spacebarUp: EmptyPayload;
    stayIdle: EmptyPayload;
    cursorOnElement: EmptyPayload;
    scroll: ScrollEventPayload;
    scrollWithCtrl: ScrollWithCtrlEventPayload;
    middlePointerDown: PointerEventPayload;
    middlePointerUp: PointerEventPayload;
    middlePointerMove: PointerEventPayload;
};
/**
 * @description Converts the point from window coordinates(browser) to view port coordinates.
 *
 * @category Input State Machine
 */
export declare function convertFromWindow2ViewPort(point: Point, canvas: HTMLCanvasElement): Point;
export declare function convertFromWindow2ViewPortWithCanvasOperator(point: Point, canvasOperator: CanvasOperator): Point;
export declare function convertFromWindow2ViewPortCanvasOperator(point: Point, canvasOperator: CanvasOperator): Point;
/**
 * @description The possible target states of the idle state.
 *
 * @category Input State Machine
 */
export type KmtIdleStatePossibleTargetStates = "IDLE" | "READY_TO_PAN_VIA_SPACEBAR" | "READY_TO_PAN_VIA_SCROLL_WHEEL";
/**
 * @description The idle state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class KmtIdleState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    protected _guards: Guard<KmtInputContext, "isIdle">;
    protected _eventGuards: Partial<EventGuards<KmtInputEventMapping, KmtInputStates, KmtInputContext, Guard<KmtInputContext>>>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    scrollHandler(context: KmtInputContext, payload: ScrollEventPayload): void;
    scrollWithCtrlHandler(context: KmtInputContext, payload: ScrollWithCtrlEventPayload): void;
    spacebarDownHandler(context: KmtInputContext, payload: EmptyPayload): void;
    middlePointerDownHandler(context: KmtInputContext, payload: PointerEventPayload): void;
}
/**
 * @description The possible target states of the ready to select state.
 *
 * @category Input State Machine
 */
export type ReadyToSelectStatePossibleTargetStates = "IDLE" | "SELECTING";
/**
 * @description The context for the ready to select state.
 *
 * @category Input State Machine
 */
export type SelectionContext = {
    setSelectionEndPoint: (point: Point) => void;
    toggleSelectionBox: (show: boolean) => void;
    cleanup: () => void;
    setup: () => void;
    canvas: HTMLCanvasElement;
};
/**
 * @description The ready to select state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class ReadyToSelectState extends TemplateState<KmtInputEventMapping, SelectionContext, ReadyToSelectStatePossibleTargetStates> {
    constructor();
    leftPointerMove: any;
    protected _eventReactions: EventReactions<KmtInputEventMapping, SelectionContext, ReadyToSelectStatePossibleTargetStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, SelectionContext, ReadyToSelectStatePossibleTargetStates>;
}
/**
 * @description The ready to pan via space bar state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class ReadyToPanViaSpaceBarState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    leftPointerDownHandler(context: KmtInputContext, payload: PointerEventPayload): void;
    spacebarUpHandler(context: KmtInputContext, payload: EmptyPayload): void;
}
/**
 * @description The initial pan state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class InitialPanState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    leftPointerMoveHandler(context: KmtInputContext, payload: PointerEventPayload): void;
    leftPointerUpHandler(context: KmtInputContext, payload: PointerEventPayload): void;
}
/**
 * @description The ready to pan via scroll wheel state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class ReadyToPanViaScrollWheelState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    middlePointerMoveHandler(context: KmtInputContext, payload: PointerEventPayload): void;
    middlePointerUpHandler(context: KmtInputContext, payload: PointerEventPayload): void;
}
/**
 * @description The pan state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class PanState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    leftPointerMoveHandler(context: KmtInputContext, payload: PointerEventPayload): void;
    spacebarUpHandler(context: KmtInputContext, payload: EmptyPayload): void;
    leftPointerUpHandler(context: KmtInputContext, payload: PointerEventPayload): void;
}
/**
 * @description The pan via scroll wheel state of the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare class PanViaScrollWheelState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    protected _eventReactions: EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
    middlePointerMoveHandler(context: KmtInputContext, payload: PointerEventPayload): void;
    middlePointerUpHandler(context: KmtInputContext, payload: PointerEventPayload): void;
}
export declare class KmtEmptyState extends TemplateState<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    constructor();
    get eventReactions(): EventReactions<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
}
export type KmtInputStateMachine = TemplateStateMachine<KmtInputEventMapping, KmtInputContext, KmtInputStates>;
/**
 * @description Creates the keyboard mouse and trackpad input state machine.
 *
 * @category Input State Machine
 */
export declare function createKmtInputStateMachine(context: KmtInputContext): KmtInputStateMachine;
export declare class KmtInputStateMachineWebWorkerProxy extends TemplateStateMachine<KmtInputEventMapping, KmtInputContext, KmtInputStates> {
    private _webworker;
    constructor(webworker: Worker);
    happens(event: keyof KmtInputEventMapping, payload: KmtInputEventMapping[keyof KmtInputEventMapping]): KmtInputStates | undefined;
}
export {};