@tldraw/editor
Version:
tldraw infinite canvas SDK (editor).
143 lines (142 loc) • 4.78 kB
JavaScript
import { Fragment, jsx, jsxs } from "react/jsx-runtime";
import classNames from "classnames";
import * as React from "react";
import { rangeIntersection } from "../../primitives/utils.mjs";
function PointsSnapIndicator({ points, zoom }) {
const l = 2.5 / zoom;
const minX = points.reduce((acc, p) => Math.min(acc, p.x), Infinity);
const maxX = points.reduce((acc, p) => Math.max(acc, p.x), -Infinity);
const minY = points.reduce((acc, p) => Math.min(acc, p.y), Infinity);
const maxY = points.reduce((acc, p) => Math.max(acc, p.y), -Infinity);
const useNWtoSEdireciton = points.some((p) => p.x === minX && p.y === minY);
let firstX, firstY, secondX, secondY;
if (useNWtoSEdireciton) {
firstX = minX;
firstY = minY;
secondX = maxX;
secondY = maxY;
} else {
firstX = minX;
firstY = maxY;
secondX = maxX;
secondY = minY;
}
return /* @__PURE__ */ jsxs("g", { className: "tl-snap-indicator", stroke: "lime", children: [
/* @__PURE__ */ jsx("line", { x1: firstX, y1: firstY, x2: secondX, y2: secondY }),
points.map((p, i) => /* @__PURE__ */ jsx("g", { transform: `translate(${p.x},${p.y})`, children: /* @__PURE__ */ jsx(
"path",
{
className: "tl-snap-point",
d: `M ${-l},${-l} L ${l},${l} M ${-l},${l} L ${l},${-l}`
}
) }, i))
] });
}
function GapsSnapIndicator({ gaps, direction, zoom }) {
const l = 3.5 / zoom;
let edgeIntersection = [-Infinity, Infinity];
let nextEdgeIntersection = null;
const horizontal = direction === "horizontal";
for (const gap of gaps) {
nextEdgeIntersection = rangeIntersection(
edgeIntersection[0],
edgeIntersection[1],
horizontal ? gap.startEdge[0].y : gap.startEdge[0].x,
horizontal ? gap.startEdge[1].y : gap.startEdge[1].x
);
if (nextEdgeIntersection) {
edgeIntersection = nextEdgeIntersection;
} else {
continue;
}
nextEdgeIntersection = rangeIntersection(
edgeIntersection[0],
edgeIntersection[1],
horizontal ? gap.endEdge[0].y : gap.endEdge[0].x,
horizontal ? gap.endEdge[1].y : gap.endEdge[1].x
);
if (nextEdgeIntersection) {
edgeIntersection = nextEdgeIntersection;
} else {
continue;
}
}
if (edgeIntersection === null) {
return null;
}
const midPoint = (edgeIntersection[0] + edgeIntersection[1]) / 2;
return (
/* @__PURE__ */ jsx("g", { className: "tl-snap-indicator", stroke: "cyan", children: gaps.map(({ startEdge, endEdge }, i) => /* @__PURE__ */ jsx(React.Fragment, { children: horizontal ? (
// horizontal gap
/* @__PURE__ */ (jsxs(Fragment, { children: [
/* @__PURE__ */ jsx(
"line",
{
x1: startEdge[0].x,
y1: midPoint - 2 * l,
x2: startEdge[1].x,
y2: midPoint + 2 * l
}
),
/* @__PURE__ */ jsx(
"line",
{
x1: endEdge[0].x,
y1: midPoint - 2 * l,
x2: endEdge[1].x,
y2: midPoint + 2 * l
}
),
/* @__PURE__ */ jsx("line", { x1: startEdge[0].x, y1: midPoint, x2: endEdge[0].x, y2: midPoint }),
/* @__PURE__ */ jsx(
"line",
{
x1: (startEdge[0].x + endEdge[0].x) / 2,
y1: midPoint - l,
x2: (startEdge[0].x + endEdge[0].x) / 2,
y2: midPoint + l
}
)
] }))
) : (
// vertical gap
/* @__PURE__ */ (jsxs(Fragment, { children: [
/* @__PURE__ */ jsx(
"line",
{
x1: midPoint - 2 * l,
y1: startEdge[0].y,
x2: midPoint + 2 * l,
y2: startEdge[1].y
}
),
/* @__PURE__ */ jsx(
"line",
{
x1: midPoint - 2 * l,
y1: endEdge[0].y,
x2: midPoint + 2 * l,
y2: endEdge[1].y
}
),
/* @__PURE__ */ jsx("line", { x1: midPoint, y1: startEdge[0].y, x2: midPoint, y2: endEdge[0].y }),
/* @__PURE__ */ jsx(
"line",
{
x1: midPoint - l,
y1: (startEdge[0].y + endEdge[0].y) / 2,
x2: midPoint + l,
y2: (startEdge[0].y + endEdge[0].y) / 2
}
)
] }))
) }, i)) })
);
}
function DefaultSnapIndicator({ className, line, zoom }) {
return /* @__PURE__ */ jsx("svg", { className: classNames("tl-overlays__item", className), "aria-hidden": "true", children: line.type === "points" ? /* @__PURE__ */ jsx(PointsSnapIndicator, { ...line, zoom }) : line.type === "gaps" ? /* @__PURE__ */ jsx(GapsSnapIndicator, { ...line, zoom }) : null });
}
export {
DefaultSnapIndicator
};
//# sourceMappingURL=DefaultSnapIndictor.mjs.map