248 lines
11 KiB
HTML
248 lines
11 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>Two Diagrams</title>
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<meta name="description" content="Moving (not copying) nodes between two Diagrams and two different Models sharing an UndoManager." />
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<!-- Copyright 1998-2017 by Northwoods Software Corporation. -->
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<meta charset="UTF-8">
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<script src="../release/go.js"></script>
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<script src="../extensions/Robot.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 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; // for conciseness in defining templates
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// ****** First Diagram ******
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myDiagram = $(go.Diagram, "myDiagramDiv",
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{
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initialContentAlignment: go.Spot.Center,
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allowDragOut: true,
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allowDrop: true,
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"commandHandler.archetypeGroupData": { isGroup: true },
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// handle undo or redo maybe changing Diagram properties controlled by check boxes
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"ModelChanged": function(e) {
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if (e.isTransactionFinished) allChecks(true);
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},
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// A Diagram listener must be placed on both Diagrams.
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// When a collection of Parts is dragged into a diagram and dropped, the normal behavior is
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// to copy the data and create new Parts in the destination diagram.
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// To simulate a "move", the source Node must be deleted.
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// To allow a forced "copy", don't delete if the control key was held down in the source diagram.
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"ExternalObjectsDropped": function(e) {
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if (myDiagram2.commandHandler.canDeleteSelection() &&
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!(myDiagram2.lastInput.control || myDiagram2.lastInput.meta)) {
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myDiagram2.commandHandler.deleteSelection();
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}
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}
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});
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myDiagram.nodeTemplate =
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$(go.Node, "Auto", // the Shape will go around the TextBlock
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$(go.Shape, "RoundedRectangle",
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{ portId: "", fromLinkable: true, toLinkable: true, cursor: "pointer", strokeWidth: 0 },
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// Shape.fill is bound to Node.data.color
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new go.Binding("fill", "color")),
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$(go.TextBlock,
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{ margin: 8 }, // some room around the text
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// TextBlock.text is bound to Node.data.key
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new go.Binding("text", "key"))
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);
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myDiagram.model = new go.GraphLinksModel(
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[
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{ key: "Alpha", color: "lightblue" },
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{ key: "Beta", color: "orange" },
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{ key: "Gamma", color: "lightgreen" },
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{ key: "Delta", color: "pink" }
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],
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[
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{ from: "Alpha", to: "Beta" },
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{ from: "Alpha", to: "Gamma" },
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{ from: "Beta", to: "Beta" },
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{ from: "Gamma", to: "Delta" },
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{ from: "Delta", to: "Alpha" }
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]);
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// ****** Second Diagram ******
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myDiagram2 = $(go.Diagram, "myDiagram2",
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{
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initialContentAlignment: go.Spot.Center,
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allowDragOut: true,
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allowDrop: true,
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"commandHandler.archetypeGroupData": { isGroup: true },
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// handle undo or redo maybe changing Diagram properties controlled by check boxes
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"ModelChanged": function(e) {
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if (e.isTransactionFinished) allChecks(true);
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},
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// A Diagram listener must be placed on both Diagrams.
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// When a collection of Parts is dragged into a diagram and dropped, the normal behavior is
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// to copy the data and create new Parts in the destination diagram.
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// To simulate a "move", the source Node must be deleted.
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// To allow a forced "copy", don't delete if the control key was held down in the source diagram.
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"ExternalObjectsDropped": function(e) {
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if (myDiagram.commandHandler.canDeleteSelection() &&
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!(myDiagram.lastInput.control || myDiagram.lastInput.meta)) {
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myDiagram.commandHandler.deleteSelection();
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}
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}
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});
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// share templates with the first diagram
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myDiagram2.nodeTemplate = myDiagram.nodeTemplate;
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// show a different model
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myDiagram2.model = new go.GraphLinksModel(
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[
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{ key: "Zeta", color: "lightblue" },
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{ key: "Eta", color: "orange" }
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],
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[
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{ from: "Zeta", to: "Eta" }
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]);
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// But the Diagrams share the same undo manager!
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myDiagram.model.undoManager = myDiagram2.model.undoManager;
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myDiagram.model.undoManager.isEnabled = true;
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// initialize all the HTML checkboxes
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allChecks(true);
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}
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function allChecks(set) {
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var MD1allowDragOut = document.getElementById("MD1allowDragOut");
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var MD1allowDrop = document.getElementById("MD1allowDrop");
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var MD1isReadOnly = document.getElementById("MD1isReadOnly");
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var MD1allowDelete = document.getElementById("MD1allowDelete");
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var MD1allowInsert = document.getElementById("MD1allowInsert");
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var MD1allowMove = document.getElementById("MD1allowMove");
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var MD2allowDragOut = document.getElementById("MD2allowDragOut");
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var MD2allowDrop = document.getElementById("MD2allowDrop");
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var MD2isReadOnly = document.getElementById("MD2isReadOnly");
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var MD2allowDelete = document.getElementById("MD2allowDelete");
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var MD2allowInsert = document.getElementById("MD2allowInsert");
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var MD2allowMove = document.getElementById("MD2allowMove");
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if (set) {
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MD1allowDragOut.checked = myDiagram.allowDragOut;
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MD1allowDrop.checked = myDiagram.allowDrop;
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MD1isReadOnly.checked = myDiagram.isReadOnly;
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MD1allowCopy.checked = myDiagram.allowCopy;
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MD1allowDelete.checked = myDiagram.allowDelete;
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MD1allowInsert.checked = myDiagram.allowInsert;
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MD1allowMove.checked = myDiagram.allowMove;
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MD2allowDragOut.checked = myDiagram2.allowDragOut;
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MD2allowDrop.checked = myDiagram2.allowDrop;
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MD2isReadOnly.checked = myDiagram2.isReadOnly;
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MD2allowCopy.checked = myDiagram2.allowCopy;
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MD2allowDelete.checked = myDiagram2.allowDelete;
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MD2allowInsert.checked = myDiagram2.allowInsert;
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MD2allowMove.checked = myDiagram2.allowMove;
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} else {
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myDiagram.startTransaction('a');
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myDiagram.allowDragOut = MD1allowDragOut.checked;
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myDiagram.allowDrop = MD1allowDrop.checked;
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myDiagram.isReadOnly = MD1isReadOnly.checked;
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myDiagram.allowCopy = MD1allowCopy.checked;
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myDiagram.allowDelete = MD1allowDelete.checked;
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myDiagram.allowInsert = MD1allowInsert.checked;
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myDiagram.allowMove = MD1allowMove.checked;
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myDiagram2.allowDragOut = MD2allowDragOut.checked;
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myDiagram2.allowDrop = MD2allowDrop.checked;
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myDiagram2.isReadOnly = MD2isReadOnly.checked;
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myDiagram2.allowCopy = MD2allowCopy.checked;
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myDiagram2.allowDelete = MD2allowDelete.checked;
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myDiagram2.allowInsert = MD2allowInsert.checked;
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myDiagram2.allowMove = MD2allowMove.checked;
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myDiagram.commitTransaction('a');
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}
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}
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function dragBetaAcross() {
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var robot = new Robot(myDiagram);
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var beta = myDiagram.findNodeForKey("Beta");
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if (beta !== null) {
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var opts = { sourceDiagram: myDiagram, targetDiagram: myDiagram2 };
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var loc = beta.location;
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robot.mouseDown(loc.x + 15, loc.y + 15, 0, opts);
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robot.mouseMove(loc.x + 20, loc.y + 10, 100, opts);
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robot.mouseMove(60, 20, 200, opts);
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robot.mouseUp(80, 50, 300, opts);
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} else {
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if (window.console) window.console.log("Beta not found in myDiagram");
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}
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}
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function copyBetaBack() {
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var robot = new Robot(myDiagram2);
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var beta = myDiagram2.findNodeForKey("Beta");
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if (beta !== null) {
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// turn off deletion in myDiagram2
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var delbutton = document.getElementById("MD2allowDelete");
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delbutton.checked = false;
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delbutton.onclick(); // better way to simulate clicking on check box?
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// now dragging between diagrams won't delete the source node in myDiagram2
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var opts = { sourceDiagram: myDiagram2, targetDiagram: myDiagram };
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var loc = beta.location;
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robot.mouseDown(loc.x + 15, loc.y + 15, 0, opts);
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robot.mouseMove(loc.x - 20, loc.y + 10, 100, opts);
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robot.mouseMove(160, 40, 200, opts);
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robot.mouseUp(80, 10, 300, opts);
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} else {
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if (window.console) window.console.log("Beta not found in myDiagram2");
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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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<p>In this sample dragging from one Diagram to the other effectively "moves" the selection.
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It does this by having an "ExternalObjectsDropped" Diagram listener on each Diagram,
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which deletes the selection in the original Diagram when it is dropped on an external one.</p>
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<p>The two Diagrams do not share a Model, but the two Models do share the same UndoManager:</p>
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<pre>myDiagram.model.undoManager = myDiagram2.model.undoManager;</pre>
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<p>Hence an undo or redo in one Diagram affects the other Diagram. This allows Node "moves" to be undone across Diagrams.</p>
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<p>(This is different from the <a href="updateDemo.html">Update Demo</a>, which is an example of two Diagrams sharing/showing the same Model.)</p>
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<div id="Column1" style="float:left; margin-right:20px">
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<div id="myDiagramDiv" style="border: solid 1px black; width:350px; height:300px"></div>
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<p>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowDragOut" />allowDragOut</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowDrop" />allowDrop</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD1isReadOnly" />isReadOnly</label>
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</p>
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<p>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowCopy" />allowCopy</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowDelete" />allowDelete</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowInsert" />allowInsert</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD1allowMove" />allowMove</label>
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</p>
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</div>
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<div id="Column2" style="float:left; margin-right:20px">
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<div id="myDiagram2" style="border: solid 1px black; width:350px; height:300px"></div>
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<p>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowDragOut" />allowDragOut</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowDrop" />allowDrop</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD2isReadOnly" />isReadOnly</label>
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</p>
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<p>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowCopy" />allowCopy</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowDelete" />allowDelete</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowInsert" />allowInsert</label>
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<label><input type="checkbox" onclick="allChecks()" id="MD2allowMove" />allowMove</label>
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</p>
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</div>
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<div>
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Using the Robot extension class:<br />
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<button onclick="dragBetaAcross()">Drag Beta across</button><br />
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<button onclick="copyBetaBack()">Copy Beta back</button>
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</div>
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</div>
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</body>
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</html> |