I am trying to use GraphLinksModel in swimBands, below is the code I am trying to use but its not rendering any image.
<!DOCTYPE html>
<html>
<head>
<title>Swimlane</title>
<!-- Copyright 1998-2014 by Northwoods Software Corporation. -->
<link href="goSamples.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="go.js"></script>
<script id="code">
// These parameters need to be set before defining the templates.
// this controls whether the swimlanes are horizontal stacked vertically, or the other way:
var HORIZONTAL = true;
// this controls the minimum length of any swimlane
var MINLENGTH = 200;
// this controls the minimum breadth of any swimlane
var MINBREADTH = 100;
// compute the minimum length needed to hold all of the subgraphs
function computeMinPlaceholderSize(diagram) {
var len = MINLENGTH;
for (var it = diagram.nodes; it.next(); ) {
var group = it.value;
if (!(group instanceof go.Group)) continue;
var holder = group.placeholder;
if (holder !== null) {
var sz = holder.actualBounds;
len = Math.max(len, (HORIZONTAL ? sz.width : sz.height));
}
}
return (HORIZONTAL ? new go.Size(len, NaN) : new go.Size(NaN, len));
}
// get the minimum placeholder size for a particular Group;
// when group is null, return the minimum size
function computePlaceholderSize(group) {
if (group instanceof go.Group) {
var holder = group.placeholder;
if (holder !== null) {
return holder.actualBounds.size;
}
}
return (HORIZONTAL ? new go.Size(MINLENGTH, MINBREADTH) : new go.Size(MINBREADTH, MINLENGTH));
}
// define a custom ResizingTool to limit how far one can shrink a Group
function GroupResizingTool() {
go.ResizingTool.call(this);
}
go.Diagram.inherit(GroupResizingTool, go.ResizingTool);
GroupResizingTool.prototype.isLengthening = function() {
return (this.handle.alignment === (HORIZONTAL ? go.Spot.Right : go.Spot.Bottom));
};
GroupResizingTool.prototype.computeMinSize = function() {
var msz = computePlaceholderSize(null); // get the minimum size
if (this.isLengthening()) { // compute the minimum length of all lanes
var sz = computeMinPlaceholderSize(this.diagram);
if (HORIZONTAL) {
msz.width = Math.max(msz.width, sz.width);
} else {
msz.height = Math.max(msz.height, sz.height);
}
} else { // find the minimum size of this single lane
var sz = computePlaceholderSize(this.adornedObject.part);
msz.width = Math.max(msz.width, sz.width);
msz.height = Math.max(msz.height, sz.height);
}
return msz;
};
GroupResizingTool.prototype.resize = function(newr) {
if (this.isLengthening()) { // changing the length of all of the lanes
for (var it = myDiagram.nodes; it.next(); ) {
var group = it.value;
if (!(group instanceof go.Group)) continue;
var shape = group.findObject("SHAPE");
if (shape !== null) { // set its desiredSize, but leave the other direction alone
if (HORIZONTAL) {
shape.width = newr.width;
} else {
shape.height = newr.height;
}
}
}
} else { // changing the breadth and length of a single lane
go.ResizingTool.prototype.resize.call(this, newr);
}
};
// end GroupResizingTool class
// define a custom grid layout that makes sure the length of each lane is the same
// and that each lane is broad enough to hold its subgraph
function StackLayout() {
go.GridLayout.call(this);
}
go.Diagram.inherit(StackLayout, go.GridLayout);
StackLayout.prototype.doLayout = function(coll) {
var diagram = this.diagram;
if (diagram === null) return;
diagram.startTransaction("StackLayout");
// make sure all of the Group Shapes are big enough
var minsize = computeMinPlaceholderSize(diagram);
for (var it = diagram.nodes; it.next(); ) {
var group = it.value;
if (!(group instanceof go.Group)) continue;
var shape = group.findObject("SHAPE");
if (shape !== null) { // change the desiredSize to be big enough in both directions
var sz = computePlaceholderSize(group);
if (HORIZONTAL) {
shape.width = (isNaN(shape.width) ? minsize.width : Math.max(shape.width, minsize.width));
if (!isNaN(shape.height)) shape.height = Math.max(shape.height, sz.height);
} else {
if (!isNaN(shape.width)) shape.width = Math.max(shape.width, sz.width);
shape.height = (isNaN(shape.height) ? minsize.height : Math.max(shape.height, minsize.height));
}
var cell = group.resizeCellSize;
if (!isNaN(shape.width) && !isNaN(cell.width) && cell.width > 0) shape.width = Math.ceil(shape.width / cell.width) * cell.width;
if (!isNaN(shape.height) && !isNaN(cell.height) && cell.height > 0) shape.height = Math.ceil(shape.height / cell.height) * cell.height;
}
}
// now do all of the usual stuff, according to whatever properties have been set on this GridLayout
go.GridLayout.prototype.doLayout.call(this, coll);
diagram.commitTransaction("StackLayout");
};
// end StackLayout class
function init() {
if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
var $ = go.GraphObject.make;
myDiagram =
$(go.Diagram, "myDiagram",
{
// use a custom ResizingTool (along with a custom ResizeAdornment on each Group)
resizingTool: new GroupResizingTool(),
// use a simple layout that ignores links to stack the top-level Groups on top of each other
layout:
$(StackLayout,
{
cellSize: new go.Size(1, 1),
spacing: new go.Size(0, 0),
wrappingColumn: (HORIZONTAL ? 1 : Infinity),
wrappingWidth: Infinity,
isViewportSized: false
}),
// don't allow dropping onto the diagram's background
mouseDrop: function(e) { e.diagram.currentTool.doCancel(); },
// a clipboard copied node is pasted into the original node's group (i.e. lane).
"commandHandler.copiesGroupKey": true
});
// When a Node has been moved, make sure all of the top-level Groups get laid out again in a stack
function relayoutDiagramStack(e) {
myDiagram.layout.invalidateLayout(); // but don't invalidate all Layouts that are in Groups
myDiagram.layoutDiagram();
}
myDiagram.addDiagramListener("SelectionMoved", relayoutDiagramStack);
myDiagram.addDiagramListener("SelectionCopied", relayoutDiagramStack);
// this is a Part.dragComputation function for limiting where a Node may be dragged
function stayInGroup(part, pt, gridpt) {
// don't constrain top-level nodes
var grp = part.containingGroup;
if (grp === null) return pt;
// try to stay within the background Shape of the Group
var back = grp.findObject("SHAPE");
if (back === null) return pt;
// allow dragging a Node out of a Group if the Shift key is down
if (part.diagram.lastInput.shift) return pt;
var b = part.actualBounds;
var p1 = back.getDocumentPoint(go.Spot.TopLeft);
var p2 = back.getDocumentPoint(go.Spot.BottomRight);
// find the padding inside the group's placeholder that is around the member parts
var m = grp.placeholder.padding;
// now limit the location appropriately
var x = Math.max(p1.x + m.left, Math.min(pt.x, p2.x - m.right - b.width - 1));
var y = Math.max(p1.y + m.top, Math.min(pt.y, p2.y - m.bottom - b.height - 1));
return new go.Point(x, y);
}
myDiagram.nodeTemplate =
$(go.Node, "Auto",
$(go.Shape, "Rectangle",
{ fill: "white", portId: "", cursor: "pointer", fromLinkable: true, toLinkable: true }),
$(go.TextBlock, { margin: 5 },
new go.Binding("text", "key")),
// limit dragging of Nodes to stay within the containing Group, defined above
{
dragComputation: stayInGroup,
mouseDrop: function (e, node) { // dropping a copy of some Nodes and Links onto this Node adds them to this Node's Group
if (!e.shift && !e.control) return; // cannot change groups with an unmodified drag-and-drop
var grp = node.containingGroup;
if (grp !== null) {
var ok = grp.addMembers(node.diagram.selection, true);
if (!ok) grp.diagram.currentTool.doCancel();
}
},
layoutConditions: go.Part.LayoutAdded | go.Part.LayoutNodeSized
}
);
// each Group is a "swimlane" with a header on the left and a resizable lane on the right
myDiagram.groupTemplate =
$(go.Group, HORIZONTAL ? "Horizontal" : "Vertical",
{
movable: false, copyable: false, deletable: false, // can't move or copy or delete lanes
avoidable: false,
selectionObjectName: "SHAPE", // selecting a lane causes the body of the lane to be highlit, not the label
resizable: true, resizeObjectName: "SHAPE", // allow lanes to be resized, but the custom resizeAdornmentTemplate only permits one kind of resizing
layout: $(go.LayeredDigraphLayout, // automatically lay out the lane's subgraph
{ direction: HORIZONTAL ? 0 : 90, columnSpacing: 10, layeringOption: go.LayeredDigraphLayout.LayerLongestPathSource }),
computesBoundsAfterDrag: true, // needed to prevent recomputing Group.placeholder bounds too soon
computesBoundsIncludingLinks: false,
computesBoundsIncludingLocation: true,
mouseDrop: function (e, grp) { // dropping a copy of some Nodes and Links onto this Group adds them to this Group
if (!e.shift && !e.control) return; // cannot change groups with an unmodified drag-and-drop
var ok = grp.addMembers(grp.diagram.selection, true);
if (!ok) grp.diagram.currentTool.doCancel();
}
},
// the lane header consisting of a Shape and a TextBlock
$(go.Panel, "Horizontal",
{ angle: HORIZONTAL ? 270 : 0, // maybe rotate the header to read sideways going up
alignment: go.Spot.Center },
$(go.Shape, "Diamond",
{ width: 8, height: 8 },
new go.Binding("fill", "color")),
$(go.TextBlock, // the lane label
{ font: "bold 16pt sans-serif" },
new go.Binding("text", "key"))
), // end Horizontal Panel
$(go.Panel, "Auto", // the lane consisting of a background Shape and a Placeholder representing the subgraph
$(go.Shape, "Rectangle",
{ name: "SHAPE", fill: "white", minSize: computePlaceholderSize(null) },
new go.Binding("fill", "color")),
$(go.Placeholder,
{ padding: 10, alignment: go.Spot.TopLeft })
) // end Auto Panel
); // end Group
// define a custom resize adornment that only has a single resize handle
myDiagram.groupTemplate.resizeAdornmentTemplate =
$(go.Adornment, "Spot",
$(go.Placeholder),
$(go.Shape, // for changing the length of a lane
{
alignment: HORIZONTAL ? go.Spot.Right: go.Spot.Bottom,
desiredSize: HORIZONTAL ? new go.Size(7, 50) : new go.Size(50, 7),
fill: "lightblue", stroke: "dodgerblue",
cursor: HORIZONTAL ? "col-resize" : "row-resize"
}),
$(go.Shape, // for changing the breadth of a lane
{
alignment: HORIZONTAL ? go.Spot.Bottom : go.Spot.Right,
desiredSize: HORIZONTAL ? new go.Size(50, 7) : new go.Size(7, 50),
fill: "lightblue", stroke: "dodgerblue",
cursor: HORIZONTAL ? "row-resize" : "col-resize"
})
);
myDiagram.linkTemplate =
$(go.Link,
{ routing: go.Link.AvoidsNodes, corner: 5 },
{ relinkableFrom: true, relinkableTo: true },
$(go.Shape),
$(go.Shape, { toArrow: "Standard" }),
{
mouseDrop: function (e, link) { // dropping a copy of some Nodes and Links onto this Link adds them to this Link's Group
if (!e.shift && !e.control) return; // cannot change groups with an unmodified drag-and-drop
var grp = link.containingGroup;
if (grp !== null) {
var ok = grp.addMembers(link.diagram.selection, true);
if (!ok) grp.diagram.currentTool.doCancel();
}
},
layoutConditions: go.Part.LayoutAdded
}
);
// define some sample graphs in some of the lanes
myDiagram.model = new go.GraphLinksModel(
[ // node data
{ key: "Lane1", isGroup: true, color: "lightblue" },
{ key: "Lane2", isGroup: true, color: "lightgreen" },
{ key: "Lane3", isGroup: true, color: "lightyellow" },
{ key: "Lane4", isGroup: true, color: "orange" },
{ key: "oneA", group: "Lane1" },
{ key: "oneB", group: "Lane1" },
{ key: "oneC", group: "Lane1" },
{ key: "oneD", group: "Lane1" },
{ key: "twoA", group: "Lane2" },
{ key: "twoB", group: "Lane2" },
{ key: "twoC", group: "Lane2" },
{ key: "twoD", group: "Lane2" },
{ key: "twoE", group: "Lane2" },
{ key: "twoF", group: "Lane2" },
{ key: "twoG", group: "Lane2" },
{ key: "fourA", group: "Lane4" },
{ key: "fourB", group: "Lane4" },
{ key: "fourC", group: "Lane4" },
{ key: "fourD", group: "Lane4" },
],
[ // link data
{ from: "oneA", to: "oneB" },
{ from: "oneA", to: "oneC" },
{ from: "oneB", to: "oneD" },
{ from: "oneC", to: "oneD" },
{ from: "twoA", to: "twoB" },
{ from: "twoA", to: "twoC" },
{ from: "twoA", to: "twoF" },
{ from: "twoB", to: "twoD" },
{ from: "twoC", to: "twoD" },
{ from: "twoD", to: "twoG" },
{ from: "twoE", to: "twoG" },
{ from: "twoF", to: "twoG" },
{ from: "fourA", to: "fourB" },
{ from: "fourB", to: "fourC" },
{ from: "fourC", to: "fourD" }
]);
myDiagram.model.undoManager.isEnabled = true;
}
</script>
</head>
<body onload="init()">
<div id="sample">
<div id="myDiagram" style="border: solid 1px blue; width:100%; height:600px;"></div>
</div>
</body>
</html>
Can you help me in debugging the issue ? or if someone can share sample code for using GraphLinksModel with swimBands