maxGraph/packages/html/stories/RadialTreeLayout.stories.js

/*
Copyright 2021-present The maxGraph project Contributors
Copyright (c) 2006-2020, JGraph Ltd

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import { Graph, RubberBandHandler, RadialTreeLayout, Perimeter } from '@maxgraph/core';
import {
  globalTypes,
  globalValues,
  rubberBandTypes,
  rubberBandValues,
} from './shared/args.js';
// style required by RubberBand
import '@maxgraph/core/css/common.css';

export default {
  title: 'Layouts/RadialTreeLayout',
  argTypes: {
    ...globalTypes,
    ...rubberBandTypes,
  },
  args: {
    ...globalValues,
    ...rubberBandValues,
  },
};

const Template = ({ label, ...args }) => {
  const container = document.createElement('div');
  container.style.position = 'relative';
  container.style.overflow = 'hidden';
  container.style.width = `${args.width}px`;
  container.style.height = `${args.height}px`;
  container.style.background = 'url(/images/grid.gif)';
  container.style.cursor = 'default';

  // Creates the graph inside the given container
  const graph = new Graph(container);

  // Adds rubberband selection
  if (args.rubberBand) new RubberBandHandler(graph);

  // Changes the default vertex style in-place
  let style = graph.getStylesheet().getDefaultVertexStyle();
  style.perimiter = Perimeter.RectanglePerimeter;
  style.gradientColor = 'white';
  style.perimeterSpacing = 6;
  style.rounded = true;
  style.shadow = true;

  style = graph.getStylesheet().getDefaultEdgeStyle();
  style.rounded = true;

  // Creates a layout algorithm to be used
  // with the graph
  const layout = new RadialTreeLayout(graph);

  const parent = graph.getDefaultParent();

  // Load cells and layouts the graph
  graph.batchUpdate(() => {
    const v1 = graph.insertVertex(parent, null, '1', 500, 500, 80, 30);
    const v2 = graph.insertVertex(parent, null, '2.1', 0, 0, 80, 30);
    const v3 = graph.insertVertex(parent, null, '2.2', 0, 0, 80, 30);
    const v4 = graph.insertVertex(parent, null, '3.1', 0, 0, 80, 30);
    const v4_1 = graph.insertVertex(parent, null, '3.2', 0, 0, 80, 30);
    const v4_2 = graph.insertVertex(parent, null, '3.3', 0, 0, 80, 30);
    const v4_3 = graph.insertVertex(parent, null, '3.6', 0, 0, 80, 30);
    const v4_4 = graph.insertVertex(parent, null, '3.7', 0, 0, 80, 30);
    const v5 = graph.insertVertex(parent, null, '3.4', 0, 0, 80, 30);
    const v6 = graph.insertVertex(parent, null, '2.3', 0, 0, 80, 30);
    const v7 = graph.insertVertex(parent, null, '4.1', 0, 0, 80, 30);
    const v7_1 = graph.insertVertex(parent, null, '4.2', 0, 0, 80, 30);
    const v7_2 = graph.insertVertex(parent, null, '4.3', 0, 0, 80, 30);
    const v7_3 = graph.insertVertex(parent, null, '4.4', 0, 0, 80, 30);
    const v7_4 = graph.insertVertex(parent, null, '4.5', 0, 0, 80, 30);
    const v7_5 = graph.insertVertex(parent, null, '4.6', 0, 0, 80, 30);
    const v7_6 = graph.insertVertex(parent, null, '4.7', 0, 0, 80, 30);

    const e1 = graph.insertEdge(parent, null, '', v1, v2);
    const e2 = graph.insertEdge(parent, null, '', v1, v3);
    const e3 = graph.insertEdge(parent, null, '', v3, v4);
    const e3_1 = graph.insertEdge(parent, null, '', v3, v4_1);
    const e3_2 = graph.insertEdge(parent, null, '', v3, v4_2);
    const e3_3 = graph.insertEdge(parent, null, '', v3, v4_3);
    const e3_4 = graph.insertEdge(parent, null, '', v3, v4_4);
    const e4 = graph.insertEdge(parent, null, '', v2, v5);
    const e5 = graph.insertEdge(parent, null, '', v1, v6);
    const e6 = graph.insertEdge(parent, null, '', v4_3, v7);
    var e6_1 = graph.insertEdge(parent, null, '', v4_4, v7_4);
    var e6_2 = graph.insertEdge(parent, null, '', v4_4, v7_5);
    var e6_3 = graph.insertEdge(parent, null, '', v4_4, v7_6);
    var e6_1 = graph.insertEdge(parent, null, '', v4_3, v7_1);
    var e6_2 = graph.insertEdge(parent, null, '', v4_3, v7_2);
    var e6_3 = graph.insertEdge(parent, null, '', v4_3, v7_3);

    // Executes the layout
    layout.execute(parent);
  });

  return container;
};

export const Default = Template.bind({});