forked from community/device-mgt-core
Jayasanka
6 years ago
parent
a34c98aadf
commit
62d0a0480a
@ -0,0 +1,16 @@
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import React from "react";
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const ConfigContext = React.createContext();
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export const withConfigContext = Component => {
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return props => (
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<ConfigContext.Consumer>
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{context => {
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return <Component {...props} context={context}/>;
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}}
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</ConfigContext.Consumer>
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);
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};
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export default ConfigContext;
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@ -1,56 +0,0 @@
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import * as dagre from "dagre";
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import * as _ from "lodash";
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const size = {
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width: 60,
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height: 60
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};
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export function distributeElements(model) {
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let clonedModel = _.cloneDeep(model);
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let nodes = distributeGraph(clonedModel);
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nodes.forEach(node => {
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let modelNode = clonedModel.nodes.find(item => item.id === node.id);
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modelNode.x = node.x - node.width / 2;
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modelNode.y = node.y - node.height / 2;
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});
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return clonedModel;
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}
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function distributeGraph(model) {
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let nodes = mapElements(model);
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let edges = mapEdges(model);
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let graph = new dagre.graphlib.Graph();
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graph.setGraph({});
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graph.setDefaultEdgeLabel(() => ({}));
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//add elements to dagre graph
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nodes.forEach(node => {
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graph.setNode(node.id, node.metadata);
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});
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edges.forEach(edge => {
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if (edge.from && edge.to) {
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graph.setEdge(edge.from, edge.to);
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}
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});
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//auto-distribute
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dagre.layout(graph);
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return graph.nodes().map(node => graph.node(node));
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}
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function mapElements(model) {
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// dagre compatible format
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return model.nodes.map(node => ({ id: node.id, metadata: { ...size, id: node.id } }));
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}
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function mapEdges(model) {
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// returns links which connects nodes
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// we check are there both from and to nodes in the model. Sometimes links can be detached
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return model.links
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.map(link => ({
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from: link.source,
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to: link.target
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}))
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.filter(
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item => model.nodes.find(node => node.id === item.from) && model.nodes.find(node => node.id === item.to)
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);
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}
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