<!--
Copyright (c) 2006-2013, JGraph Ltd
Toolbar example for mxGraph. This example demonstrates using
existing cells as templates for creating new cells.
-->
<html>
<head>
<title>Toolbar example for mxGraph</title>
<!-- Sets the basepath for the library if not in same directory -->
<script type="text/javascript">
mxBasePath = '../src';
</script>
<!-- Loads and initializes the library -->
<script type="text/javascript" src="../src/js/mxClient.js"></script>
<!-- Example code -->
<script type="text/javascript">
// Program starts here. Creates a sample graph in the
// DOM node with the specified ID. This function is invoked
// from the onLoad event handler of the document (see below).
function main()
{
// Defines an icon for creating new connections in the connection handler.
// This will automatically disable the highlighting of the source vertex.
mxConnectionHandler.prototype.connectImage = new mxImage('images/connector.gif', 16, 16);
// Checks if browser is supported
if (!mxClient.isBrowserSupported())
{
// Displays an error message if the browser is
// not supported.
mxUtils.error('Browser is not supported!', 200, false);
}
else
{
// Creates the div for the toolbar
var tbContainer = document.createElement('div');
tbContainer.style.position = 'absolute';
tbContainer.style.overflow = 'hidden';
tbContainer.style.padding = '2px';
tbContainer.style.left = '0px';
tbContainer.style.top = '26px';
tbContainer.style.width = '24px';
tbContainer.style.bottom = '0px';
document.body.appendChild(tbContainer);
// Creates new toolbar without event processing
var toolbar = new mxToolbar(tbContainer);
toolbar.enabled = false
// Creates the div for the graph
container = document.createElement('div');
container.style.position = 'absolute';
container.style.overflow = 'hidden';
container.style.left = '24px';
container.style.top = '26px';
container.style.right = '0px';
container.style.bottom = '0px';
container.style.background = 'url("editors/images/grid.gif")';
document.body.appendChild(container);
// Workaround for Internet Explorer ignoring certain styles
if (mxClient.IS_QUIRKS)
{
document.body.style.overflow = 'hidden';
new mxDivResizer(tbContainer);
new mxDivResizer(container);
}
// Creates the model and the graph inside the container
// using the fastest rendering available on the browser
var model = new mxGraphModel();
var graph = new mxGraph(container, model);
graph.dropEnabled = true;
// Matches DnD inside the graph
mxDragSource.prototype.getDropTarget = function(graph, x, y)
{
var cell = graph.getCellAt(x, y);
if (!graph.isValidDropTarget(cell))
{
cell = null;
}
return cell;
};
// Enables new connections in the graph
graph.setConnectable(true);
graph.setMultigraph(false);
// Stops editing on enter or escape keypress
var keyHandler = new mxKeyHandler(graph);
var rubberband = new mxRubberband(graph);
var addVertex = function(icon, w, h, style)
{
var vertex = new mxCell(null, new mxGeometry(0, 0, w, h), style);
vertex.setVertex(true);
addToolbarItem(graph, toolbar, vertex, icon);
};
addVertex('editors/images/swimlane.gif', 120, 160, 'shape=swimlane;startSize=20;');
addVertex('editors/images/rectangle.gif', 100, 40, '');
addVertex('editors/images/rounded.gif', 100, 40, 'shape=rounded');
addVertex('editors/images/ellipse.gif', 40, 40, 'shape=ellipse');
addVertex('editors/images/rhombus.gif', 40, 40, 'shape=rhombus');
addVertex('editors/images/triangle.gif', 40, 40, 'shape=triangle');
addVertex('editors/images/cylinder.gif', 40, 40, 'shape=cylinder');
addVertex('editors/images/actor.gif', 30, 40, 'shape=actor');
toolbar.addLine();
var button = mxUtils.button('Create toolbar entry from selection', function(evt)
{
if (!graph.isSelectionEmpty())
{
// Creates a copy of the selection array to preserve its state
var cells = graph.getSelectionCells();
var bounds = graph.getView().getBounds(cells);
// Function that is executed when the image is dropped on
// the graph. The cell argument points to the cell under
// the mousepointer if there is one.
var funct = function(graph, evt, cell)
{
graph.stopEditing(false);
var pt = graph.getPointForEvent(evt);
var dx = pt.x - bounds.x;
var dy = pt.y - bounds.y;
graph.setSelectionCells(graph.importCells(cells, dx, dy, cell));
}
// Creates the image which is used as the drag icon (preview)
var img = toolbar.addMode(null, 'editors/images/outline.gif', funct);
mxUtils.makeDraggable(img, graph, funct);
}
});
button.style.position = 'absolute';
button.style.left = '2px';
button.style.top = '2px';
document.body.appendChild(button);
}
}
function addToolbarItem(graph, toolbar, prototype, image)
{
// Function that is executed when the image is dropped on
// the graph. The cell argument points to the cell under
// the mousepointer if there is one.
var funct = function(graph, evt, cell)
{
graph.stopEditing(false);
var pt = graph.getPointForEvent(evt);
var vertex = graph.getModel().cloneCell(prototype);
vertex.geometry.x = pt.x;
vertex.geometry.y = pt.y;
graph.setSelectionCells(graph.importCells([vertex], 0, 0, cell));
}
// Creates the image which is used as the drag icon (preview)
var img = toolbar.addMode(null, image, funct);
mxUtils.makeDraggable(img, graph, funct);
}
</script>
</head>
<!-- Calls the main function after the page has loaded. Container is dynamically created. -->
<body onload="main();">
</body>
</html>