121 lines
2.8 KiB
JavaScript
121 lines
2.8 KiB
JavaScript
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import mxgraph from '@mxgraph/core';
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import { globalTypes } from '../.storybook/preview';
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export default {
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title: 'Labels/Perimeter',
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argTypes: {
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...globalTypes,
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rubberBand: {
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type: 'boolean',
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defaultValue: true
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}
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}
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};
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const Template = ({ label, ...args }) => {
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const {
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mxGraph,
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mxRubberband,
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mxGraphView,
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mxUtils
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} = mxgraph;
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const container = document.createElement('div');
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container.style.position = 'relative';
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container.style.overflow = 'hidden';
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container.style.width = `${args.width}px`;
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container.style.height = `${args.height}px`;
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container.style.background = 'url(/images/grid.gif)';
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container.style.cursor = 'default';
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// Redirects the perimeter to the label bounds if intersection
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// between edge and label is found
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const mxGraphViewGetPerimeterPoint =
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mxGraphView.prototype.getPerimeterPoint;
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mxGraphView.prototype.getPerimeterPoint = function(
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terminal,
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next,
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orthogonal,
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border
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) {
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let point = mxGraphViewGetPerimeterPoint.apply(this, arguments);
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if (point != null) {
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const perimeter = this.getPerimeterFunction(terminal);
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if (terminal.text != null && terminal.text.boundingBox != null) {
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// Adds a small border to the label bounds
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const b = terminal.text.boundingBox.clone();
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b.grow(3);
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if (mxUtils.rectangleIntersectsSegment(b, point, next)) {
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point = perimeter(b, terminal, next, orthogonal);
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}
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}
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}
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return point;
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};
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// Creates the graph inside the given container
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const graph = new mxGraph(container);
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graph.setVertexLabelsMovable(true);
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graph.setConnectable(true);
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// Uncomment the following if you want the container
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// to fit the size of the graph
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// graph.setResizeContainer(true);
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// Enables rubberband selection
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if (args.rubberBand)
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new mxRubberband(graph);
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// Gets the default parent for inserting new cells. This
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// is normally the first child of the root (ie. layer 0).
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const parent = graph.getDefaultParent();
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// Adds cells to the model in a single step
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graph.getModel().beginUpdate();
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try {
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const v1 = graph.insertVertex(
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parent,
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null,
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'Label',
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20,
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20,
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80,
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30,
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'verticalLabelPosition=bottom'
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);
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const v2 = graph.insertVertex(
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parent,
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null,
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'Label',
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200,
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20,
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80,
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30,
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'verticalLabelPosition=bottom'
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);
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const v3 = graph.insertVertex(
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parent,
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null,
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'Label',
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20,
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150,
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80,
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30,
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'verticalLabelPosition=bottom'
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);
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var e1 = graph.insertEdge(parent, null, '', v1, v2);
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var e1 = graph.insertEdge(parent, null, '', v1, v3);
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} finally {
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// Updates the display
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graph.getModel().endUpdate();
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}
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return container;
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}
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export const Default = Template.bind({});
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