gojs
Version:
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
160 lines (159 loc) • 8.41 kB
JavaScript
/*
* Copyright (C) 1998-2020 by Northwoods Software Corporation. All Rights Reserved.
*/
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports", "../release/go.js", "./LinkLabelDraggingTool.js"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/*
* This is an extension and not part of the main GoJS library.
* Note that the API for this class may change with any version, even point releases.
* If you intend to use an extension in production, you should copy the code to your own source directory.
* Extensions can be found in the GoJS kit under the extensions or extensionsTS folders.
* See the Extensions intro page (https://gojs.net/latest/intro/extensions.html) for more information.
*/
var go = require("../release/go.js");
var LinkLabelDraggingTool_js_1 = require("./LinkLabelDraggingTool.js");
var myDiagram;
function init() {
if (window.goSamples)
window.goSamples(); // init for these samples -- you don't need to call this
var $ = go.GraphObject.make; // for conciseness in defining templates
myDiagram =
$(go.Diagram, 'myDiagramDiv', // must name or refer to the DIV HTML element
{
// have mouse wheel events zoom in and out instead of scroll up and down
'toolManager.mouseWheelBehavior': go.ToolManager.WheelZoom,
// support double-click in background creating a new node
'clickCreatingTool.archetypeNodeData': { text: 'new node' },
// enable undo & redo
'undoManager.isEnabled': true
});
// install the LinkLabelDraggingTool as a "mouse move" tool
myDiagram.toolManager.mouseMoveTools.insertAt(0, new LinkLabelDraggingTool_js_1.LinkLabelDraggingTool());
// when the document is modified, add a "*" to the title and enable the "Save" button
myDiagram.addDiagramListener('Modified', function (e) {
var button = document.getElementById('SaveButton');
if (button)
button.disabled = !myDiagram.isModified;
var idx = document.title.indexOf('*');
if (myDiagram.isModified) {
if (idx < 0)
document.title += '*';
}
else {
if (idx >= 0)
document.title = document.title.substr(0, idx);
}
});
// define the Node template
myDiagram.nodeTemplate =
$(go.Node, 'Auto', new go.Binding('location', 'loc', go.Point.parse).makeTwoWay(go.Point.stringify),
// define the node's outer shape, which will surround the TextBlock
$(go.Shape, 'RoundedRectangle', {
parameter1: 20,
fill: $(go.Brush, 'Linear', { 0: 'rgb(254, 201, 0)', 1: 'rgb(254, 162, 0)' }),
stroke: 'black',
portId: '',
fromLinkable: true,
fromLinkableSelfNode: true,
fromLinkableDuplicates: true,
toLinkable: true,
toLinkableSelfNode: true,
toLinkableDuplicates: true,
cursor: 'pointer'
}), $(go.TextBlock, {
font: 'bold 11pt helvetica, bold arial, sans-serif',
editable: true // editing the text automatically updates the model data
}, new go.Binding('text', 'text').makeTwoWay()));
// unlike the normal selection Adornment, this one includes a Button
myDiagram.nodeTemplate.selectionAdornmentTemplate =
$(go.Adornment, 'Spot', $(go.Panel, 'Auto', $(go.Shape, { fill: null, stroke: 'blue', strokeWidth: 2 }), $(go.Placeholder) // this represents the selected Node
),
// the button to create a "next" node, at the top-right corner
$('Button', {
alignment: go.Spot.TopRight,
click: addNodeAndLink // this function is defined below
}, $(go.Shape, 'PlusLine', { desiredSize: new go.Size(6, 6) })) // end button
); // end Adornment
// clicking the button inserts a new node to the right of the selected node,
// and adds a link to that new node
function addNodeAndLink(e, obj) {
var adorn = obj.part;
var fromNode = adorn.adornedPart;
if (fromNode === null)
return;
e.handled = true;
var diagram = e.diagram;
diagram.startTransaction('Add State');
// get the node data for which the user clicked the button
var fromData = fromNode.data;
// create a new "State" data object, positioned off to the right of the adorned Node
var toData = { text: 'new' };
var p = fromNode.location.copy();
p.x += 200;
toData.loc = go.Point.stringify(p); // the "loc" property is a string, not a Point object
// add the new node data to the model
var model = diagram.model;
model.addNodeData(toData);
// create a link data from the old node data to the new node data
var linkdata = {
from: model.getKeyForNodeData(fromData),
to: model.getKeyForNodeData(toData),
text: 'transition'
};
// and add the link data to the model
model.addLinkData(linkdata);
// select the new Node
var newnode = diagram.findNodeForData(toData);
diagram.select(newnode);
diagram.commitTransaction('Add State');
// if the new node is off-screen, scroll the diagram to show the new node
if (newnode !== null)
diagram.scrollToRect(newnode.actualBounds);
}
// replace the default Link template in the linkTemplateMap
myDiagram.linkTemplate =
$(go.Link, // the whole link panel
{ curve: go.Link.Bezier, adjusting: go.Link.Stretch, reshapable: true }, new go.Binding('points').makeTwoWay(), new go.Binding('curviness', 'curviness'), $(go.Shape, // the link shape
{ strokeWidth: 1.5 }), $(go.Shape, // the arrowhead
{ toArrow: 'standard', stroke: null }), $(go.Panel, 'Auto', { cursor: 'move' }, // visual hint that the user can do something with this link label
$(go.Shape, // the label background, which becomes transparent around the edges
{
fill: $(go.Brush, 'Radial', { 0: 'rgb(240, 240, 240)', 0.3: 'rgb(240, 240, 240)', 1: 'rgba(240, 240, 240, 0)' }),
stroke: null
}), $(go.TextBlock, 'transition', // the label text
{
textAlign: 'center',
font: '10pt helvetica, arial, sans-serif',
stroke: 'black',
margin: 4,
editable: true // editing the text automatically updates the model data
}, new go.Binding('text', 'text').makeTwoWay()),
// The GraphObject.segmentOffset property is what the LinkLabelDraggingTool modifies.
// This TwoWay binding saves any changes to the same named property on the link data.
new go.Binding('segmentOffset', 'segmentOffset', go.Point.parse).makeTwoWay(go.Point.stringify)));
// read in the JSON-format data from the "mySavedModel" element
load();
// Attach to the window for console manipulation
window.myDiagram = myDiagram;
}
exports.init = init;
// Show the diagram's model in JSON format
function save() {
document.getElementById('mySavedModel').value = myDiagram.model.toJson();
myDiagram.isModified = false;
}
exports.save = save;
function load() {
myDiagram.model = go.Model.fromJson(document.getElementById('mySavedModel').value);
}
exports.load = load;
});