134 lines
3.7 KiB
JavaScript
134 lines
3.7 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, styleUtils } from '@maxgraph/core';
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import { globalTypes, globalValues } from './shared/args.js';
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export default {
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title: 'Connections/EdgeTolerance',
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argTypes: {
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...globalTypes,
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},
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args: {
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...globalValues,
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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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class MyCustomGraph extends Graph {
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fireMouseEvent(evtName, me, sender) {
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// Overrides the mouse event dispatching mechanism to update the
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// cell which is associated with the event in case the native hit
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// detection did not return anything.
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// Checks if native hit detection did not return anything
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if (me.getState() == null) {
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// Updates the graph coordinates in the event since we need
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// them here. Storing them in the event means the overridden
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// method doesn't have to do this again.
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if (me.graphX == null || me.graphY == null) {
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const pt = styleUtils.convertPoint(container, me.getX(), me.getY());
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me.graphX = pt.x;
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me.graphY = pt.y;
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}
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const cell = this.getCellAt(me.graphX, me.graphY);
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if (cell?.isEdge()) {
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me.state = this.view.getState(cell);
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if (me.state != null && me.state.shape != null) {
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this.container.style.cursor = me.state.shape.node.style.cursor;
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}
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}
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}
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if (me.state == null) {
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this.container.style.cursor = 'default';
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}
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super.fireMouseEvent(evtName, me, sender);
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}
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dblClick(evt, cell) {
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// Overrides double click handling to use the tolerance
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if (cell == null) {
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const pt = styleUtils.convertPoint(
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el,
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eventUtils.getClientX(evt),
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eventUtils.getClientY(evt)
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);
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cell = this.getCellAt(pt.x, pt.y);
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}
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super.dblClick(evt, cell);
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}
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}
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// Creates the graph inside the given container
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const graph = new MyCustomGraph(container);
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graph.setEventTolerance(20);
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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({
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parent,
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value: 'Hello,',
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position: [120, 120],
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size: [80, 30],
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});
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const v2 = graph.insertVertex({
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parent,
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value: 'World!',
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position: [400, 250],
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size: [80, 30],
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});
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const e1 = graph.insertEdge({
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parent,
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source: v1,
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target: v2,
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style: {
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edgeStyle: 'orthogonalEdgeStyle',
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},
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});
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const e2 = graph.insertEdge({
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parent,
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source: v2,
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target: v1,
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style: {
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edgeStyle: 'orthogonalEdgeStyle',
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},
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});
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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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