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77 lines
3.1 KiB
77 lines
3.1 KiB
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8">
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<title>Non-Realtime Dragging</title>
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<meta name="description" content="A modification of DraggingTool to show a ghost image of what is being moved, rather than moving the nodes and links in realtime." />
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<!-- Copyright 1998-2019 by Northwoods Software Corporation. -->
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<script src="../release/go.js"></script>
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<script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
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<script src="NonRealtimeDraggingTool.js"></script>
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<script id="code">
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function init() {
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if (window.goSamples) goSamples(); // init for these samples -- you don't need to call this
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var $ = go.GraphObject.make;
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myDiagram =
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$(go.Diagram, "myDiagramDiv",
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{ // install the replacement DraggingTool:
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draggingTool: new NonRealtimeDraggingTool(),
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"undoManager.isEnabled": true
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});
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myDiagram.nodeTemplate =
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$(go.Node, "Auto",
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{ locationSpot: go.Spot.Center },
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$(go.Shape, "Circle",
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{
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fill: "white", // the default fill, if there is no data-binding
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portId: "", cursor: "pointer", // the Shape is the port, not the whole Node
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// allow all kinds of links from and to this port
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fromLinkable: true, fromLinkableSelfNode: true, fromLinkableDuplicates: true,
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toLinkable: true, toLinkableSelfNode: true, toLinkableDuplicates: true
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},
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new go.Binding("fill", "color")),
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$(go.TextBlock,
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{
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font: "bold 14px sans-serif",
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stroke: '#333',
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margin: 6, // make some extra space for the shape around the text
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isMultiline: false, // don't allow newlines in text
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editable: true // allow in-place editing by user
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},
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new go.Binding("text", "text").makeTwoWay()) // the label shows the node data's text
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);
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myDiagram.model = new go.GraphLinksModel([
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{ key: 1, text: "Alpha", color: "lightblue" },
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{ key: 2, text: "Beta", color: "orange" },
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{ key: 3, text: "Gamma", color: "lightgreen", group: 5 },
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{ key: 4, text: "Delta", color: "pink", group: 5 },
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{ key: 5, text: "Epsilon", color: "green", isGroup: true }
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], [
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{ from: 1, to: 2, color: "blue" },
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{ from: 2, to: 2 },
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{ from: 3, to: 4, color: "green" },
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{ from: 3, to: 1, color: "purple" }
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]);
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}
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</script>
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</head>
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<body onload="init()">
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<div id="sample">
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<div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:600px"></div>
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<p>
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This custom <a>DraggingTool</a> class causes the user to drag around a translucent image of the Nodes and Links being moved,
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leaving the selected Parts in place, rather than actually moving those Nodes and Links in realtime.
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Only when the mouse up occurs does the move happen.
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</p>
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<p>
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This tool is defined in its own file, as <a href="NonRealtimeDraggingTool.js">NonRealtimeDraggingTool.js</a>
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</p>
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</div>
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</body>
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</html> |