import { Rectangle } from './infrastructure/Rectangle';
import { CanvasColour, Rect } from './interfaces';
import { RenderShape, TitleMode } from './types/globalEnums';
export declare enum SlotType {
    Array = "array",
    Event = -1
}
/** @see RenderShape */
export declare enum SlotShape {
    Box = 1,
    Arrow = 5,
    Grid = 6,
    Circle = 3,
    HollowCircle = 7
}
/** @see LinkDirection */
export declare enum SlotDirection {
    Up = 1,
    Right = 4,
    Down = 2,
    Left = 3
}
export declare enum LabelPosition {
    Left = "left",
    Right = "right"
}
export interface IDrawBoundingOptions {
    /** The shape to render */
    shape?: RenderShape;
    /** The radius of the rounded corners for {@link RenderShape.ROUND} and {@link RenderShape.CARD} */
    round_radius?: number;
    /** Shape will extend above the Y-axis 0 by this amount @deprecated This is node-specific: it should be removed entirely, and behaviour defined by the caller more explicitly */
    title_height?: number;
    /** @deprecated This is node-specific: it should be removed entirely, and behaviour defined by the caller more explicitly */
    title_mode?: TitleMode;
    /** The color that should be drawn */
    color?: CanvasColour;
    /** The distance between the edge of the {@link area} and the middle of the line */
    padding?: number;
    /** @deprecated This is node-specific: it should be removed entirely, and behaviour defined by the caller more explicitly */
    collapsed?: boolean;
    /** Thickness of the line drawn (`lineWidth`) */
    lineWidth?: number;
}
export interface IDrawTextInAreaOptions {
    /** The canvas to draw the text on. */
    ctx: CanvasRenderingContext2D;
    /** The text to draw. */
    text: string;
    /** The area the text will be drawn in. */
    area: Rectangle;
    /** The alignment of the text. */
    align?: "left" | "right" | "center";
}
/**
 * Draws only the path of a shape on the canvas, without filling.
 * Used to draw indicators for node status, e.g. "selected".
 * @param ctx The 2D context to draw on
 * @param area The position and size of the shape to render
 */
export declare function strokeShape(ctx: CanvasRenderingContext2D, area: Rect, { shape, round_radius, title_height, title_mode, color, padding, collapsed, lineWidth: thickness, }?: IDrawBoundingOptions): void;
/**
 * Draws text within an area, truncating it and adding an ellipsis if necessary.
 */
export declare function drawTextInArea({ ctx, text, area, align }: IDrawTextInAreaOptions): void;