import { Bounds, HtmlElementBounds, IViewNode, Point } from "./types";
export interface Grid {
}
export interface Line {
    x1: number;
    x2: number;
    y1: number;
    y2: number;
}
export interface IDndProvider {
    grid: Grid;
    scale: number;
    validDndThreshold?: number;
    svgDndBackground: SVGElement;
    resizeForeground: (size: Bounds) => boolean;
    getParentTopLeft: (node: IViewNode) => Point;
    endNodeDragging: (draggingNode: IViewNode) => void;
    endEdgeDragging: (dragginNode: IViewNode, targetNode: IViewNode) => void;
    onEdgeDropped?: (sourceNode: IViewNode, targetNode: IViewNode) => void;
}
export declare enum XDirection {
    LeftToRight = "LeftToRight",
    RightToLeft = "RightToLeft",
    None = "None"
}
export declare enum YDirection {
    TopToBottom = "TopToBottom",
    BottomToTop = "BottomToTop",
    None = "None"
}
export interface IDndContext {
    readonly dir: String;
    readonly ratio: number;
    readonly invalidDropping?: boolean;
    readonly provider?: IDndProvider;
    readonly lastBounds: HtmlElementBounds;
    readonly grid: Grid;
    allowDrop: () => boolean;
    moveTo: (mPoint: Point, rootBounds: HtmlElementBounds) => void;
    xDirection: (mPoint: Point, rootBounds: HtmlElementBounds) => XDirection;
    yDirection: (mPoint: Point, rootBounds: HtmlElementBounds) => YDirection;
}
export interface DndInitArgs {
    rootNode: HTMLElement;
    parentNode: HTMLElement;
    viewPortNode: HTMLElement;
    sourceNode: HTMLElement;
    glassStyles?: {
        cursor: string;
    };
}
export interface DndContextInitArgs {
    provider?: IDndProvider;
    mPoint: Point;
    ratio: number;
    validDndThreshold?: number;
    bounds: HtmlElementBounds;
}