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import type { Curve } from "@excalidraw/math";
import {
isLineSegment,
lineSegment,
pointFrom,
type GlobalPoint,
type LocalPoint,
} from "@excalidraw/math";
import type { LineSegment } from "@excalidraw/utils";
import type { Bounds } from "./element/bounds";
import { isBounds } from "./element/typeChecks";
// The global data holder to collect the debug operations
declare global {
interface Window {
visualDebug?: {
data: DebugElement[][];
currentFrame?: number;
};
}
}
export type DebugElement = {
color: string;
data: LineSegment<GlobalPoint> | Curve<GlobalPoint>;
permanent: boolean;
};
export const debugDrawCubicBezier = (
c: Curve<GlobalPoint>,
opts?: {
color?: string;
permanent?: boolean;
},
) => {
addToCurrentFrame({
color: opts?.color ?? "purple",
permanent: !!opts?.permanent,
data: c,
});
};
export const debugDrawLine = (
segment: LineSegment<GlobalPoint> | LineSegment<GlobalPoint>[],
opts?: {
color?: string;
permanent?: boolean;
},
) => {
const segments = (
isLineSegment(segment) ? [segment] : segment
) as LineSegment<GlobalPoint>[];
segments.forEach((data) =>
addToCurrentFrame({
color: opts?.color ?? "red",
data,
permanent: !!opts?.permanent,
}),
);
};
export const debugDrawPoint = (
p: GlobalPoint,
opts?: {
color?: string;
permanent?: boolean;
fuzzy?: boolean;
},
) => {
const xOffset = opts?.fuzzy ? Math.random() * 3 : 0;
const yOffset = opts?.fuzzy ? Math.random() * 3 : 0;
debugDrawLine(
lineSegment(
pointFrom<GlobalPoint>(p[0] + xOffset - 10, p[1] + yOffset - 10),
pointFrom<GlobalPoint>(p[0] + xOffset + 10, p[1] + yOffset + 10),
),
{
color: opts?.color ?? "cyan",
permanent: opts?.permanent,
},
);
debugDrawLine(
lineSegment(
pointFrom<GlobalPoint>(p[0] + xOffset - 10, p[1] + yOffset + 10),
pointFrom<GlobalPoint>(p[0] + xOffset + 10, p[1] + yOffset - 10),
),
{
color: opts?.color ?? "cyan",
permanent: opts?.permanent,
},
);
};
export const debugDrawBounds = (
box: Bounds | Bounds[],
opts?: {
color?: string;
permanent?: boolean;
},
) => {
(isBounds(box) ? [box] : box).forEach((bbox) =>
debugDrawLine(
[
lineSegment(
pointFrom<GlobalPoint>(bbox[0], bbox[1]),
pointFrom<GlobalPoint>(bbox[2], bbox[1]),
),
lineSegment(
pointFrom<GlobalPoint>(bbox[2], bbox[1]),
pointFrom<GlobalPoint>(bbox[2], bbox[3]),
),
lineSegment(
pointFrom<GlobalPoint>(bbox[2], bbox[3]),
pointFrom<GlobalPoint>(bbox[0], bbox[3]),
),
lineSegment(
pointFrom<GlobalPoint>(bbox[0], bbox[3]),
pointFrom<GlobalPoint>(bbox[0], bbox[1]),
),
],
{
color: opts?.color ?? "green",
permanent: !!opts?.permanent,
},
),
);
};
export const debugDrawPoints = (
{
x,
y,
points,
}: {
x: number;
y: number;
points: LocalPoint[];
},
options?: any,
) => {
points.forEach((p) =>
debugDrawPoint(pointFrom<GlobalPoint>(x + p[0], y + p[1]), options),
);
};
export const debugCloseFrame = () => {
window.visualDebug?.data.push([]);
};
export const debugClear = () => {
if (window.visualDebug?.data) {
window.visualDebug.data = [];
}
};
const addToCurrentFrame = (element: DebugElement) => {
if (window.visualDebug?.data && window.visualDebug.data.length === 0) {
window.visualDebug.data[0] = [];
}
window.visualDebug?.data &&
window.visualDebug.data[window.visualDebug.data.length - 1].push(element);
};
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