chore: setup monorepo using preconstruct

2022-07-11 18:04:27 +02:00
parent a47f1c1382
commit 1bb32c8eb7
188 changed files with 2590 additions and 288 deletions
@@ -0,0 +1,149 @@
+import React, { memo } from 'react';
+import { EdgeProps, Position } from '../../types';
+import BaseEdge from './BaseEdge';
+
+export interface GetSimpleBezierPathParams {
+  sourceX: number;
+  sourceY: number;
+  sourcePosition?: Position;
+  targetX: number;
+  targetY: number;
+  targetPosition?: Position;
+}
+
+interface GetControlParams {
+  pos: Position;
+  x1: number;
+  y1: number;
+  x2: number;
+  y2: number;
+}
+
+function getControl({ pos, x1, y1, x2, y2 }: GetControlParams): [number, number] {
+  let ctX: number, ctY: number;
+  switch (pos) {
+    case Position.Left:
+    case Position.Right:
+      {
+        ctX = 0.5 * (x1 + x2);
+        ctY = y1;
+      }
+      break;
+    case Position.Top:
+    case Position.Bottom:
+      {
+        ctX = x1;
+        ctY = 0.5 * (y1 + y2);
+      }
+      break;
+  }
+  return [ctX, ctY];
+}
+
+export function getSimpleBezierPath({
+  sourceX,
+  sourceY,
+  sourcePosition = Position.Bottom,
+  targetX,
+  targetY,
+  targetPosition = Position.Top,
+}: GetSimpleBezierPathParams): string {
+  const [sourceControlX, sourceControlY] = getControl({
+    pos: sourcePosition,
+    x1: sourceX,
+    y1: sourceY,
+    x2: targetX,
+    y2: targetY,
+  });
+  const [targetControlX, targetControlY] = getControl({
+    pos: targetPosition,
+    x1: targetX,
+    y1: targetY,
+    x2: sourceX,
+    y2: sourceY,
+  });
+  return `M${sourceX},${sourceY} C${sourceControlX},${sourceControlY} ${targetControlX},${targetControlY} ${targetX},${targetY}`;
+}
+
+// @TODO: this function will recalculate the control points
+// one option is to let getXXXPath() return center points
+// but will introduce breaking changes
+// the getCenter() of other types of edges might need to change, too
+export function getSimpleBezierCenter({
+  sourceX,
+  sourceY,
+  sourcePosition = Position.Bottom,
+  targetX,
+  targetY,
+  targetPosition = Position.Top,
+}: GetSimpleBezierPathParams): [number, number, number, number] {
+  const [sourceControlX, sourceControlY] = getControl({
+    pos: sourcePosition,
+    x1: sourceX,
+    y1: sourceY,
+    x2: targetX,
+    y2: targetY,
+  });
+  const [targetControlX, targetControlY] = getControl({
+    pos: targetPosition,
+    x1: targetX,
+    y1: targetY,
+    x2: sourceX,
+    y2: sourceY,
+  });
+  // cubic bezier t=0.5 mid point, not the actual mid point, but easy to calculate
+  // https://stackoverflow.com/questions/67516101/how-to-find-distance-mid-point-of-bezier-curve
+  const centerX = sourceX * 0.125 + sourceControlX * 0.375 + targetControlX * 0.375 + targetX * 0.125;
+  const centerY = sourceY * 0.125 + sourceControlY * 0.375 + targetControlY * 0.375 + targetY * 0.125;
+  const xOffset = Math.abs(centerX - sourceX);
+  const yOffset = Math.abs(centerY - sourceY);
+  return [centerX, centerY, xOffset, yOffset];
+}
+
+export default memo(
+  ({
+    sourceX,
+    sourceY,
+    targetX,
+    targetY,
+    sourcePosition = Position.Bottom,
+    targetPosition = Position.Top,
+    label,
+    labelStyle,
+    labelShowBg,
+    labelBgStyle,
+    labelBgPadding,
+    labelBgBorderRadius,
+    style,
+    markerEnd,
+    markerStart,
+  }: EdgeProps) => {
+    const params = {
+      sourceX,
+      sourceY,
+      sourcePosition,
+      targetX,
+      targetY,
+      targetPosition,
+    };
+    const path = getSimpleBezierPath(params);
+    const [centerX, centerY] = getSimpleBezierCenter(params);
+
+    return (
+      <BaseEdge
+        path={path}
+        centerX={centerX}
+        centerY={centerY}
+        label={label}
+        labelStyle={labelStyle}
+        labelShowBg={labelShowBg}
+        labelBgStyle={labelBgStyle}
+        labelBgPadding={labelBgPadding}
+        labelBgBorderRadius={labelBgBorderRadius}
+        style={style}
+        markerEnd={markerEnd}
+        markerStart={markerStart}
+      />
+    );
+  }
+);