129 lines
5.7 KiB
HTML
129 lines
5.7 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1">
|
|
<title>Graphical Macros via Auto Ungrouping</title>
|
|
<meta name="description" content="Automatically start editing dropped nodes and ungroup dropped groups to create subgraphs." />
|
|
<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
|
|
<meta charset="UTF-8">
|
|
<script src="../release/go.js"></script>
|
|
<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
|
|
<script id="code">
|
|
function init() {
|
|
if (window.goSamples) 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
|
|
{
|
|
allowDrop: true, // must be true to accept drops from the Palette
|
|
// automatically show the state of the diagram's model on the page in a PRE element
|
|
"ModelChanged": function(e) {
|
|
if (e.isTransactionFinished) {
|
|
document.getElementById("mySavedModel").textContent = myDiagram.model.toJson();
|
|
}
|
|
},
|
|
"undoManager.isEnabled": true
|
|
});
|
|
|
|
// define the Node template for regular nodes
|
|
myDiagram.nodeTemplateMap.add("", // the default category
|
|
$(go.Node, go.Panel.Auto,
|
|
// The Node.location comes from the "loc" property of the node data,
|
|
// converted by the Point.parse method.
|
|
// If the Node.location is changed, it updates the "loc" property of the node data,
|
|
// converting back using the Point.stringify method.
|
|
new go.Binding("location", "loc", go.Point.parse).makeTwoWay(go.Point.stringify),
|
|
// the main object is a Panel that surrounds a TextBlock with a rectangular Shape
|
|
$(go.Shape,
|
|
{ figure: "Rectangle", fill: "white", strokeWidth: 2 },
|
|
new go.Binding("stroke", "color"),
|
|
{ portId: "", fromLinkable: true, toLinkable: true, cursor: "pointer" }),
|
|
$(go.TextBlock,
|
|
{ maxSize: new go.Size(150, NaN), textAlign: "center",
|
|
margin: 6, editable: true, name: "TEXT",
|
|
font: "16pt Helvetica, Arial, sans-serif"
|
|
},
|
|
new go.Binding("text", "text").makeTwoWay())));
|
|
|
|
myDiagram.groupTemplate =
|
|
$(go.Group, go.Panel.Auto,
|
|
{ isSubGraphExpanded: false, // only show the Group itself, not any of its members
|
|
ungroupable: true }, // allow the ExternalObjectsDropped event handler to ungroup
|
|
// the members to be top-level parts, via a command
|
|
$(go.Shape, "Rectangle", // the rectangular shape around the members
|
|
{ fill: "rgba(128,128,128,0.2)", stroke: "gray", strokeWidth: 3 }),
|
|
$(go.Placeholder, { alignment: go.Spot.TopLeft }),
|
|
$(go.TextBlock,
|
|
{ font: "bold 16pt Helvetica, Arial, sans-serif", margin: 10 },
|
|
new go.Binding("text", "text")));
|
|
|
|
myDiagram.linkTemplate =
|
|
$(go.Link,
|
|
$(go.Shape, { strokeWidth: 1.5 }),
|
|
$(go.Shape, { toArrow: "Standard", stroke: null }));
|
|
|
|
// this DiagramEvent is raised when the user has drag-and-dropped something
|
|
// from another Diagram (a Palette in this case) into this Diagram
|
|
myDiagram.addDiagramListener("ExternalObjectsDropped", function(e) {
|
|
// stop any ongoing text editing
|
|
if (myDiagram.currentTool instanceof go.TextEditingTool) {
|
|
myDiagram.currentTool.acceptText(go.TextEditingTool.LostFocus);
|
|
}
|
|
// expand any "macros"
|
|
myDiagram.commandHandler.ungroupSelection();
|
|
// start editing the first node that was dropped after ungrouping
|
|
var tb = myDiagram.selection.first().findObject('TEXT');
|
|
if (tb) myDiagram.commandHandler.editTextBlock(tb);
|
|
});
|
|
|
|
// initialize the Palette that is on the left side of the page
|
|
myPalette =
|
|
$(go.Palette, "myPaletteDiv", // must name or refer to the DIV HTML element
|
|
{
|
|
nodeTemplateMap: myDiagram.nodeTemplateMap,
|
|
groupTemplateMap: myDiagram.groupTemplateMap
|
|
});
|
|
|
|
myPalette.model = new go.GraphLinksModel([
|
|
// a regular node
|
|
{ key: "B", text: "some block", color: "blue" },
|
|
// a group node, plus three member nodes in that group
|
|
{ key: "G", text: "Macro", isGroup: true },
|
|
{ key: "Ga", text: "A block", color: "green", group: "G", loc: "0 0" },
|
|
{ key: "Gb", text: "B block", color: "orange", group: "G", loc: "150 25" },
|
|
{ key: "Gc", text: "C block", color: "red", group: "G", loc: "50 100" }
|
|
],[
|
|
{ from: "Ga", to: "Gb" },
|
|
{ from: "Ga", to: "Gc" },
|
|
{ from: "Gb", to: "Gc" }
|
|
]);
|
|
}
|
|
</script>
|
|
</head>
|
|
<body onload="init()">
|
|
<div id="sample">
|
|
<div style="width:100%; white-space:nowrap;">
|
|
<span style="display: inline-block; vertical-align: top; width:135px">
|
|
<div id="myPaletteDiv" style="border: solid 1px black; height: 500px"></div>
|
|
</span>
|
|
<span style="display: inline-block; vertical-align: top; width:80%">
|
|
<div id="myDiagramDiv" style="border: solid 1px black; height: 500px"></div>
|
|
</span>
|
|
</div>
|
|
<p>
|
|
When one drags the "Macro" node (actually a <a>Group</a>) from the Palette into the main Diagram,
|
|
the "ExternalObjectsDropped" <a>DiagramEvent</a> listener automatically ungroups that group node
|
|
to show all of its members nodes and links that were copied by the drag-and-drop.
|
|
</p>
|
|
<p>
|
|
Note also that a drop causes the <a>TextEditingTool</a> to automatically start editing the text in the node.
|
|
</p>
|
|
Diagram Model saved in JSON format:
|
|
<br />
|
|
<pre id="mySavedModel" style="width:100%;height:300px">
|
|
</pre>
|
|
</div>
|
|
</body>
|
|
</html>
|