109 lines
3.7 KiB
TypeScript
109 lines
3.7 KiB
TypeScript
import React, { memo, HTMLAttributes } from 'react';
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import cc from 'classcat';
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import { useStoreState } from '../../store/hooks';
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import { getRectOfNodes, getBoundsofRects } from '../../utils/graph';
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import { Node, Rect } from '../../types';
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import MiniMapNode from './MiniMapNode';
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type StringFunc = (node: Node) => string;
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export interface MiniMapProps extends HTMLAttributes<SVGSVGElement> {
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nodeColor?: string | StringFunc;
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nodeStrokeColor?: string | StringFunc;
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nodeClassName?: string | StringFunc;
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nodeBorderRadius?: number;
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nodeStrokeWidth?: number;
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maskColor?: string;
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}
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declare const window: any;
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const defaultWidth = 200;
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const defaultHeight = 150;
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const MiniMap = ({
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style,
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className,
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nodeStrokeColor = '#555',
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nodeColor = '#fff',
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nodeClassName = '',
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nodeBorderRadius = 5,
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nodeStrokeWidth = 2,
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maskColor = 'rgb(240, 242, 243, 0.7)',
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}: MiniMapProps) => {
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const containerWidth = useStoreState((s) => s.width);
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const containerHeight = useStoreState((s) => s.height);
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const [tX, tY, tScale] = useStoreState((s) => s.transform);
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const nodes = useStoreState((s) => s.nodes);
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const mapClasses = cc(['react-flow__minimap', className]);
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const elementWidth = (style?.width || defaultWidth)! as number;
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const elementHeight = (style?.height || defaultHeight)! as number;
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const nodeColorFunc = (nodeColor instanceof Function ? nodeColor : () => nodeColor) as StringFunc;
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const nodeStrokeColorFunc = (nodeStrokeColor instanceof Function
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? nodeStrokeColor
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: () => nodeStrokeColor) as StringFunc;
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const nodeClassNameFunc = (nodeClassName instanceof Function ? nodeClassName : () => nodeClassName) as StringFunc;
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const hasNodes = nodes && nodes.length;
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const bb = getRectOfNodes(nodes);
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const viewBB: Rect = {
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x: -tX / tScale,
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y: -tY / tScale,
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width: containerWidth / tScale,
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height: containerHeight / tScale,
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};
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const boundingRect = hasNodes ? getBoundsofRects(bb, viewBB) : viewBB;
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const scaledWidth = boundingRect.width / elementWidth;
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const scaledHeight = boundingRect.height / elementHeight;
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const viewScale = Math.max(scaledWidth, scaledHeight);
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const viewWidth = viewScale * elementWidth;
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const viewHeight = viewScale * elementHeight;
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const offset = 5 * viewScale;
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const x = boundingRect.x - (viewWidth - boundingRect.width) / 2 - offset;
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const y = boundingRect.y - (viewHeight - boundingRect.height) / 2 - offset;
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const width = viewWidth + offset * 2;
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const height = viewHeight + offset * 2;
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const shapeRendering = (typeof window === "undefined" || !!window.chrome) ? "crispEdges" : "geometricPrecision";
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return (
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<svg
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width={elementWidth}
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height={elementHeight}
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viewBox={`${x} ${y} ${width} ${height}`}
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style={style}
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className={mapClasses}
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>
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{nodes
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.filter((node) => !node.isHidden)
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.map((node) => (
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<MiniMapNode
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key={node.id}
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x={node.__rf.position.x}
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y={node.__rf.position.y}
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width={node.__rf.width}
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height={node.__rf.height}
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style={node.style}
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className={nodeClassNameFunc(node)}
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color={nodeColorFunc(node)}
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borderRadius={nodeBorderRadius}
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strokeColor={nodeStrokeColorFunc(node)}
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strokeWidth={nodeStrokeWidth}
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shapeRendering={shapeRendering}
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/>
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))}
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<path
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className="react-flow__minimap-mask"
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d={`M${x - offset},${y - offset}h${width + offset * 2}v${height + offset * 2}h${-width - offset * 2}z
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M${viewBB.x},${viewBB.y}h${viewBB.width}v${viewBB.height}h${-viewBB.width}z`}
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fill={maskColor}
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fillRule="evenodd"
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/>
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</svg>
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);
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};
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MiniMap.displayName = 'MiniMap';
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export default memo(MiniMap);
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