107 lines
3.3 KiB
JavaScript
107 lines
3.3 KiB
JavaScript
/*
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Copyright 2021-present The maxGraph project Contributors
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Copyright (c) 2006-2020, JGraph Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import { Graph, RubberBandHandler, GraphView, mathUtils } from '@maxgraph/core';
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import {
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globalTypes,
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globalValues,
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rubberBandTypes,
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rubberBandValues,
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} from './shared/args.js';
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// style required by RubberBand
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import '@maxgraph/core/css/common.css';
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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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...rubberBandTypes,
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},
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args: {
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...globalValues,
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...rubberBandValues,
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},
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};
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const Template = ({ label, ...args }) => {
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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 = GraphView.prototype.getPerimeterPoint;
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GraphView.prototype.getPerimeterPoint = function (terminal, next, orthogonal, border) {
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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 (mathUtils.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 Graph(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) new RubberBandHandler(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.batchUpdate(() => {
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const v1 = graph.insertVertex(parent, null, 'Label', 20, 20, 80, 30, {
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verticalLabelPosition: 'bottom',
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});
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const v2 = graph.insertVertex(parent, null, 'Label', 200, 20, 80, 30, {
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verticalLabelPosition: 'bottom',
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});
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const v3 = graph.insertVertex(parent, null, 'Label', 20, 150, 80, 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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});
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return container;
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};
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export const Default = Template.bind({});
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