634 lines
23 KiB
HTML
634 lines
23 KiB
HTML
<!--
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Copyright (c) 2006-2013, JGraph Ltd
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Ports example for mxGraph. This example demonstrates implementing
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ports as child vertices with relative positions and drag and drop
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as well as the use of images and HTML in cells.
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-->
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<html>
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<head>
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<title>Ports example</title>
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<style type="text/css" media="screen">
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BODY {
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font-family: Arial;
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}
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H1 {
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font-size: 18px;
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}
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H2 {
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font-size: 16px;
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}
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</style>
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<!-- Sets the basepath for the library if not in same directory -->
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<script type="text/javascript">
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mxBasePath = '../src';
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</script>
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<!-- Loads and initializes the library -->
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<script type="text/javascript" src="../src/js/mxClient.js"></script>
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<!-- Example code -->
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<script type="text/javascript">
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// Program starts here. Creates a sample graph in the
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// DOM node with the specified ID. This function is invoked
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// from the onLoad event handler of the document (see below).
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function main(container, outline, toolbar, sidebar, status)
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{
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// Checks if the browser is supported
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if (!mxClient.isBrowserSupported())
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{
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// Displays an error message if the browser is not supported.
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mxUtils.error('Browser is not supported!', 200, false);
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}
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else
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{
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// Assigns some global constants for general behaviour, eg. minimum
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// size (in pixels) of the active region for triggering creation of
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// new connections, the portion (100%) of the cell area to be used
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// for triggering new connections, as well as some fading options for
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// windows and the rubberband selection.
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mxConstants.MIN_HOTSPOT_SIZE = 16;
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mxConstants.DEFAULT_HOTSPOT = 1;
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// Enables guides
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mxGraphHandler.prototype.guidesEnabled = true;
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// Alt disables guides
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mxGuide.prototype.isEnabledForEvent = function(evt)
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{
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return !mxEvent.isAltDown(evt);
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};
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// Enables snapping waypoints to terminals
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mxEdgeHandler.prototype.snapToTerminals = true;
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// Workaround for Internet Explorer ignoring certain CSS directives
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if (mxClient.IS_QUIRKS)
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{
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document.body.style.overflow = 'hidden';
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new mxDivResizer(container);
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new mxDivResizer(outline);
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new mxDivResizer(toolbar);
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new mxDivResizer(sidebar);
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new mxDivResizer(status);
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}
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// Creates a wrapper editor with a graph inside the given container.
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// The editor is used to create certain functionality for the
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// graph, such as the rubberband selection, but most parts
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// of the UI are custom in this example.
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var editor = new mxEditor();
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var graph = editor.graph;
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var model = graph.getModel();
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// Disable highlight of cells when dragging from toolbar
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graph.setDropEnabled(false);
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// Uses the port icon while connections are previewed
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graph.connectionHandler.getConnectImage = function(state)
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{
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return new mxImage(state.style[mxConstants.STYLE_IMAGE], 16, 16);
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};
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// Centers the port icon on the target port
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graph.connectionHandler.targetConnectImage = true;
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// Does not allow dangling edges
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graph.setAllowDanglingEdges(false);
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// Sets the graph container and configures the editor
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editor.setGraphContainer(container);
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var config = mxUtils.load(
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'editors/config/keyhandler-commons.xml').
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getDocumentElement();
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editor.configure(config);
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// Defines the default group to be used for grouping. The
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// default group is a field in the mxEditor instance that
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// is supposed to be a cell which is cloned for new cells.
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// The groupBorderSize is used to define the spacing between
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// the children of a group and the group bounds.
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var group = new mxCell('Group', new mxGeometry(), 'group');
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group.setVertex(true);
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group.setConnectable(false);
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editor.defaultGroup = group;
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editor.groupBorderSize = 20;
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// Disables drag-and-drop into non-swimlanes.
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graph.isValidDropTarget = function(cell, cells, evt)
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{
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return this.isSwimlane(cell);
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};
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// Disables drilling into non-swimlanes.
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graph.isValidRoot = function(cell)
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{
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return this.isValidDropTarget(cell);
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}
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// Does not allow selection of locked cells
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graph.isCellSelectable = function(cell)
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{
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return !this.isCellLocked(cell);
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};
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// Returns a shorter label if the cell is collapsed and no
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// label for expanded groups
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graph.getLabel = function(cell)
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{
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var tmp = mxGraph.prototype.getLabel.apply(this, arguments); // "supercall"
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if (this.isCellLocked(cell))
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{
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// Returns an empty label but makes sure an HTML
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// element is created for the label (for event
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// processing wrt the parent label)
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return '';
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}
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else if (this.isCellCollapsed(cell))
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{
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var index = tmp.indexOf('</h1>');
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if (index > 0)
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{
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tmp = tmp.substring(0, index+5);
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}
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}
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return tmp;
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}
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// Disables HTML labels for swimlanes to avoid conflict
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// for the event processing on the child cells. HTML
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// labels consume events before underlying cells get the
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// chance to process those events.
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//
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// NOTE: Use of HTML labels is only recommended if the specific
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// features of such labels are required, such as special label
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// styles or interactive form fields. Otherwise non-HTML labels
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// should be used by not overidding the following function.
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// See also: configureStylesheet.
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graph.isHtmlLabel = function(cell)
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{
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return !this.isSwimlane(cell);
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}
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// To disable the folding icon, use the following code:
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/*graph.isCellFoldable = function(cell)
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{
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return false;
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}*/
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// Shows a "modal" window when double clicking a vertex.
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graph.dblClick = function(evt, cell)
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{
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// Do not fire a DOUBLE_CLICK event here as mxEditor will
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// consume the event and start the in-place editor.
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if (this.isEnabled() &&
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!mxEvent.isConsumed(evt) &&
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cell != null &&
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this.isCellEditable(cell))
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{
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if (this.model.isEdge(cell) ||
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!this.isHtmlLabel(cell))
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{
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this.startEditingAtCell(cell);
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}
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else
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{
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var content = document.createElement('div');
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content.innerHTML = this.convertValueToString(cell);
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showModalWindow(this, 'Properties', content, 400, 300);
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}
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}
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// Disables any default behaviour for the double click
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mxEvent.consume(evt);
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};
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// Enables new connections
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graph.setConnectable(true);
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// Adds all required styles to the graph (see below)
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configureStylesheet(graph);
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// Adds sidebar icons.
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//
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// NOTE: For non-HTML labels a simple string as the third argument
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// and the alternative style as shown in configureStylesheet should
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// be used. For example, the first call to addSidebar icon would
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// be as follows:
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// addSidebarIcon(graph, sidebar, 'Website', 'images/icons48/earth.png');
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addSidebarIcon(graph, sidebar,
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'<h1 style="margin:0px;">Website</h1><br>'+
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'<img src="images/icons48/earth.png" width="48" height="48">'+
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'<br>'+
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'<a href="http://www.jgraph.com" target="_blank">Browse</a>',
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'images/icons48/earth.png');
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addSidebarIcon(graph, sidebar,
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'<h1 style="margin:0px;">Process</h1><br>'+
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'<img src="images/icons48/gear.png" width="48" height="48">'+
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'<br><select><option>Value1</option><option>Value2</option></select><br>',
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'images/icons48/gear.png');
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addSidebarIcon(graph, sidebar,
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'<h1 style="margin:0px;">Keys</h1><br>'+
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'<img src="images/icons48/keys.png" width="48" height="48">'+
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'<br>'+
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'<button onclick="mxUtils.alert(\'generate\');">Generate</button>',
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'images/icons48/keys.png');
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addSidebarIcon(graph, sidebar,
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'<h1 style="margin:0px;">New Mail</h1><br>'+
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'<img src="images/icons48/mail_new.png" width="48" height="48">'+
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'<br><input type="checkbox"/>CC Archive',
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'images/icons48/mail_new.png');
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addSidebarIcon(graph, sidebar,
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'<h1 style="margin:0px;">Server</h1><br>'+
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'<img src="images/icons48/server.png" width="48" height="48">'+
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'<br>'+
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'<input type="text" size="12" value="127.0.0.1"/>',
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'images/icons48/server.png');
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// Displays useful hints in a small semi-transparent box.
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var hints = document.createElement('div');
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hints.style.position = 'absolute';
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hints.style.overflow = 'hidden';
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hints.style.width = '230px';
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hints.style.bottom = '56px';
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hints.style.height = '76px';
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hints.style.right = '20px';
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hints.style.background = 'black';
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hints.style.color = 'white';
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hints.style.fontFamily = 'Arial';
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hints.style.fontSize = '10px';
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hints.style.padding = '4px';
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mxUtils.setOpacity(hints, 50);
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mxUtils.writeln(hints, '- Drag an image from the sidebar to the graph');
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mxUtils.writeln(hints, '- Doubleclick on a vertex or edge to edit');
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mxUtils.writeln(hints, '- Shift- or Rightclick and drag for panning');
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mxUtils.writeln(hints, '- Move the mouse over a cell to see a tooltip');
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mxUtils.writeln(hints, '- Click and drag a vertex to move and connect');
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document.body.appendChild(hints);
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// Creates a new DIV that is used as a toolbar and adds
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// toolbar buttons.
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var spacer = document.createElement('div');
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spacer.style.display = 'inline';
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spacer.style.padding = '8px';
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addToolbarButton(editor, toolbar, 'groupOrUngroup', '(Un)group', 'images/group.png');
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// Defines a new action for deleting or ungrouping
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editor.addAction('groupOrUngroup', function(editor, cell)
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{
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cell = cell || editor.graph.getSelectionCell();
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if (cell != null && editor.graph.isSwimlane(cell))
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{
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editor.execute('ungroup', cell);
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}
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else
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{
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editor.execute('group');
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}
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});
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addToolbarButton(editor, toolbar, 'delete', 'Delete', 'images/delete2.png');
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toolbar.appendChild(spacer.cloneNode(true));
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addToolbarButton(editor, toolbar, 'cut', 'Cut', 'images/cut.png');
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addToolbarButton(editor, toolbar, 'copy', 'Copy', 'images/copy.png');
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addToolbarButton(editor, toolbar, 'paste', 'Paste', 'images/paste.png');
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toolbar.appendChild(spacer.cloneNode(true));
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addToolbarButton(editor, toolbar, 'undo', '', 'images/undo.png');
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addToolbarButton(editor, toolbar, 'redo', '', 'images/redo.png');
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toolbar.appendChild(spacer.cloneNode(true));
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addToolbarButton(editor, toolbar, 'show', 'Show', 'images/camera.png');
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addToolbarButton(editor, toolbar, 'print', 'Print', 'images/printer.png');
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toolbar.appendChild(spacer.cloneNode(true));
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// Defines a new export action
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editor.addAction('export', function(editor, cell)
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{
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var textarea = document.createElement('textarea');
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textarea.style.width = '400px';
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textarea.style.height = '400px';
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var enc = new mxCodec(mxUtils.createXmlDocument());
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var node = enc.encode(editor.graph.getModel());
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textarea.value = mxUtils.getPrettyXml(node);
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showModalWindow(graph, 'XML', textarea, 410, 440);
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});
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addToolbarButton(editor, toolbar, 'export', 'Export', 'images/export1.png');
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// ---
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// Adds toolbar buttons into the status bar at the bottom
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// of the window.
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addToolbarButton(editor, status, 'collapseAll', 'Collapse All', 'images/navigate_minus.png', true);
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addToolbarButton(editor, status, 'expandAll', 'Expand All', 'images/navigate_plus.png', true);
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status.appendChild(spacer.cloneNode(true));
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addToolbarButton(editor, status, 'enterGroup', 'Enter', 'images/view_next.png', true);
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addToolbarButton(editor, status, 'exitGroup', 'Exit', 'images/view_previous.png', true);
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status.appendChild(spacer.cloneNode(true));
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addToolbarButton(editor, status, 'zoomIn', '', 'images/zoom_in.png', true);
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addToolbarButton(editor, status, 'zoomOut', '', 'images/zoom_out.png', true);
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addToolbarButton(editor, status, 'actualSize', '', 'images/view_1_1.png', true);
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addToolbarButton(editor, status, 'fit', '', 'images/fit_to_size.png', true);
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// Creates the outline (navigator, overview) for moving
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// around the graph in the top, right corner of the window.
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var outln = new mxOutline(graph, outline);
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// To show the images in the outline, uncomment the following code
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//outln.outline.labelsVisible = true;
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//outln.outline.setHtmlLabels(true);
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// Fades-out the splash screen after the UI has been loaded.
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var splash = document.getElementById('splash');
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if (splash != null)
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{
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try
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{
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mxEvent.release(splash);
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mxEffects.fadeOut(splash, 100, true);
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}
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catch (e)
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{
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// mxUtils is not available (library not loaded)
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splash.parentNode.removeChild(splash);
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}
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}
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}
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};
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function addToolbarButton(editor, toolbar, action, label, image, isTransparent)
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{
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var button = document.createElement('button');
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button.style.fontSize = '10';
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if (image != null)
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{
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var img = document.createElement('img');
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img.setAttribute('src', image);
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img.style.width = '16px';
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img.style.height = '16px';
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img.style.verticalAlign = 'middle';
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img.style.marginRight = '2px';
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button.appendChild(img);
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}
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if (isTransparent)
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{
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button.style.background = 'transparent';
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button.style.color = '#FFFFFF';
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button.style.border = 'none';
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}
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mxEvent.addListener(button, 'click', function(evt)
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{
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editor.execute(action);
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});
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mxUtils.write(button, label);
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toolbar.appendChild(button);
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};
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function showModalWindow(graph, title, content, width, height)
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{
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var background = document.createElement('div');
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background.style.position = 'absolute';
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background.style.left = '0px';
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background.style.top = '0px';
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background.style.right = '0px';
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background.style.bottom = '0px';
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background.style.background = 'black';
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mxUtils.setOpacity(background, 50);
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document.body.appendChild(background);
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if (mxClient.IS_IE)
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{
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new mxDivResizer(background);
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}
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var x = Math.max(0, document.body.scrollWidth/2-width/2);
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var y = Math.max(10, (document.body.scrollHeight ||
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document.documentElement.scrollHeight)/2-height*2/3);
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var wnd = new mxWindow(title, content, x, y, width, height, false, true);
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wnd.setClosable(true);
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// Fades the background out after after the window has been closed
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wnd.addListener(mxEvent.DESTROY, function(evt)
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{
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graph.setEnabled(true);
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mxEffects.fadeOut(background, 50, true,
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10, 30, true);
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});
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graph.setEnabled(false);
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graph.tooltipHandler.hide();
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wnd.setVisible(true);
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};
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function addSidebarIcon(graph, sidebar, label, image)
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{
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// Function that is executed when the image is dropped on
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// the graph. The cell argument points to the cell under
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// the mousepointer if there is one.
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var funct = function(graph, evt, cell, x, y)
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{
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var parent = graph.getDefaultParent();
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var model = graph.getModel();
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var v1 = null;
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model.beginUpdate();
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try
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{
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// NOTE: For non-HTML labels the image must be displayed via the style
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// rather than the label markup, so use 'image=' + image for the style.
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// as follows: v1 = graph.insertVertex(parent, null, label,
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// pt.x, pt.y, 120, 120, 'image=' + image);
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v1 = graph.insertVertex(parent, null, label, x, y, 120, 120);
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v1.setConnectable(false);
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// Presets the collapsed size
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v1.geometry.alternateBounds = new mxRectangle(0, 0, 120, 40);
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// Adds the ports at various relative locations
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var port = graph.insertVertex(v1, null, 'Trigger', 0, 0.25, 16, 16,
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'port;image=editors/images/overlays/flash.png;align=right;imageAlign=right;spacingRight=18', true);
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port.geometry.offset = new mxPoint(-6, -8);
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var port = graph.insertVertex(v1, null, 'Input', 0, 0.75, 16, 16,
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'port;image=editors/images/overlays/check.png;align=right;imageAlign=right;spacingRight=18', true);
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port.geometry.offset = new mxPoint(-6, -4);
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var port = graph.insertVertex(v1, null, 'Error', 1, 0.25, 16, 16,
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'port;image=editors/images/overlays/error.png;spacingLeft=18', true);
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port.geometry.offset = new mxPoint(-8, -8);
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var port = graph.insertVertex(v1, null, 'Result', 1, 0.75, 16, 16,
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'port;image=editors/images/overlays/information.png;spacingLeft=18', true);
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port.geometry.offset = new mxPoint(-8, -4);
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}
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finally
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{
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model.endUpdate();
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}
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graph.setSelectionCell(v1);
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}
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// Creates the image which is used as the sidebar icon (drag source)
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var img = document.createElement('img');
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img.setAttribute('src', image);
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img.style.width = '48px';
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img.style.height = '48px';
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img.title = 'Drag this to the diagram to create a new vertex';
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sidebar.appendChild(img);
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var dragElt = document.createElement('div');
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dragElt.style.border = 'dashed black 1px';
|
|
dragElt.style.width = '120px';
|
|
dragElt.style.height = '120px';
|
|
|
|
// Creates the image which is used as the drag icon (preview)
|
|
var ds = mxUtils.makeDraggable(img, graph, funct, dragElt, 0, 0, true, true);
|
|
ds.setGuidesEnabled(true);
|
|
};
|
|
|
|
function configureStylesheet(graph)
|
|
{
|
|
var style = new Object();
|
|
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_RECTANGLE;
|
|
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
|
|
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
|
|
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
|
|
style[mxConstants.STYLE_GRADIENTCOLOR] = '#41B9F5';
|
|
style[mxConstants.STYLE_FILLCOLOR] = '#8CCDF5';
|
|
style[mxConstants.STYLE_STROKECOLOR] = '#1B78C8';
|
|
style[mxConstants.STYLE_FONTCOLOR] = '#000000';
|
|
style[mxConstants.STYLE_ROUNDED] = true;
|
|
style[mxConstants.STYLE_OPACITY] = '80';
|
|
style[mxConstants.STYLE_FONTSIZE] = '12';
|
|
style[mxConstants.STYLE_FONTSTYLE] = 0;
|
|
style[mxConstants.STYLE_IMAGE_WIDTH] = '48';
|
|
style[mxConstants.STYLE_IMAGE_HEIGHT] = '48';
|
|
graph.getStylesheet().putDefaultVertexStyle(style);
|
|
|
|
// NOTE: Alternative vertex style for non-HTML labels should be as
|
|
// follows. This repaces the above style for HTML labels.
|
|
/*var style = new Object();
|
|
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_LABEL;
|
|
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
|
|
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_TOP;
|
|
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
|
|
style[mxConstants.STYLE_IMAGE_ALIGN] = mxConstants.ALIGN_CENTER;
|
|
style[mxConstants.STYLE_IMAGE_VERTICAL_ALIGN] = mxConstants.ALIGN_TOP;
|
|
style[mxConstants.STYLE_SPACING_TOP] = '56';
|
|
style[mxConstants.STYLE_GRADIENTCOLOR] = '#7d85df';
|
|
style[mxConstants.STYLE_STROKECOLOR] = '#5d65df';
|
|
style[mxConstants.STYLE_FILLCOLOR] = '#adc5ff';
|
|
style[mxConstants.STYLE_FONTCOLOR] = '#1d258f';
|
|
style[mxConstants.STYLE_FONTFAMILY] = 'Verdana';
|
|
style[mxConstants.STYLE_FONTSIZE] = '12';
|
|
style[mxConstants.STYLE_FONTSTYLE] = '1';
|
|
style[mxConstants.STYLE_ROUNDED] = '1';
|
|
style[mxConstants.STYLE_IMAGE_WIDTH] = '48';
|
|
style[mxConstants.STYLE_IMAGE_HEIGHT] = '48';
|
|
style[mxConstants.STYLE_OPACITY] = '80';
|
|
graph.getStylesheet().putDefaultVertexStyle(style);*/
|
|
|
|
style = new Object();
|
|
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_SWIMLANE;
|
|
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
|
|
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_CENTER;
|
|
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_TOP;
|
|
style[mxConstants.STYLE_FILLCOLOR] = '#FF9103';
|
|
style[mxConstants.STYLE_GRADIENTCOLOR] = '#F8C48B';
|
|
style[mxConstants.STYLE_STROKECOLOR] = '#E86A00';
|
|
style[mxConstants.STYLE_FONTCOLOR] = '#000000';
|
|
style[mxConstants.STYLE_ROUNDED] = true;
|
|
style[mxConstants.STYLE_OPACITY] = '80';
|
|
style[mxConstants.STYLE_STARTSIZE] = '30';
|
|
style[mxConstants.STYLE_FONTSIZE] = '16';
|
|
style[mxConstants.STYLE_FONTSTYLE] = 1;
|
|
graph.getStylesheet().putCellStyle('group', style);
|
|
|
|
style = new Object();
|
|
style[mxConstants.STYLE_SHAPE] = mxConstants.SHAPE_IMAGE;
|
|
style[mxConstants.STYLE_FONTCOLOR] = '#774400';
|
|
style[mxConstants.STYLE_PERIMETER] = mxPerimeter.RectanglePerimeter;
|
|
style[mxConstants.STYLE_PERIMETER_SPACING] = '6';
|
|
style[mxConstants.STYLE_ALIGN] = mxConstants.ALIGN_LEFT;
|
|
style[mxConstants.STYLE_VERTICAL_ALIGN] = mxConstants.ALIGN_MIDDLE;
|
|
style[mxConstants.STYLE_FONTSIZE] = '10';
|
|
style[mxConstants.STYLE_FONTSTYLE] = 2;
|
|
style[mxConstants.STYLE_IMAGE_WIDTH] = '16';
|
|
style[mxConstants.STYLE_IMAGE_HEIGHT] = '16';
|
|
graph.getStylesheet().putCellStyle('port', style);
|
|
|
|
style = graph.getStylesheet().getDefaultEdgeStyle();
|
|
style[mxConstants.STYLE_LABEL_BACKGROUNDCOLOR] = '#FFFFFF';
|
|
style[mxConstants.STYLE_STROKEWIDTH] = '2';
|
|
style[mxConstants.STYLE_ROUNDED] = true;
|
|
style[mxConstants.STYLE_EDGE] = mxEdgeStyle.EntityRelation;
|
|
};
|
|
</script>
|
|
</head>
|
|
|
|
<!-- Page passes the container for the graph to the program -->
|
|
<body onload="main(document.getElementById('graphContainer'),
|
|
document.getElementById('outlineContainer'),
|
|
document.getElementById('toolbarContainer'),
|
|
document.getElementById('sidebarContainer'),
|
|
document.getElementById('statusContainer'));" style="margin:0px;">
|
|
|
|
<!-- Creates a container for the splash screen -->
|
|
<div id="splash"
|
|
style="position:absolute;top:0px;left:0px;width:100%;height:100%;background:white;z-index:1;">
|
|
<center id="splash" style="padding-top:230px;">
|
|
<img src="editors/images/loading.gif">
|
|
</center>
|
|
</div>
|
|
|
|
<!-- Creates a container for the sidebar -->
|
|
<div id="toolbarContainer"
|
|
style="position:absolute;white-space:nowrap;overflow:hidden;top:0px;left:0px;max-height:24px;height:36px;right:0px;padding:6px;background-image:url('images/toolbar_bg.gif');">
|
|
</div>
|
|
|
|
<!-- Creates a container for the toolboox -->
|
|
<div id="sidebarContainer"
|
|
style="position:absolute;overflow:hidden;top:36px;left:0px;bottom:36px;max-width:52px;width:56px;padding-top:10px;padding-left:4px;background-image:url('images/sidebar_bg.gif');">
|
|
</div>
|
|
|
|
<!-- Creates a container for the graph -->
|
|
<div id="graphContainer"
|
|
style="position:absolute;overflow:hidden;top:36px;left:60px;bottom:36px;right:0px;background-image:url('editors/images/grid.gif');cursor:default;">
|
|
</div>
|
|
|
|
<!-- Creates a container for the outline -->
|
|
<div id="outlineContainer"
|
|
style="position:absolute;overflow:hidden;top:36px;right:0px;width:200px;height:140px;background:transparent;border-style:solid;border-color:black;">
|
|
</div>
|
|
|
|
<!-- Creates a container for the sidebar -->
|
|
<div id="statusContainer"
|
|
style="text-align:right;position:absolute;overflow:hidden;bottom:0px;left:0px;max-height:24px;height:36px;right:0px;color:white;padding:6px;background-image:url('images/toolbar_bg.gif');">
|
|
<div style="font-size:10pt;float:left;">
|
|
Created with <a href="http://www.jgraph.com" target="_blank">mxGraph</a>
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|