168 lines
5.2 KiB
HTML
168 lines
5.2 KiB
HTML
<!--
|
|
Copyright (c) 2006-2013, JGraph Ltd
|
|
|
|
Dynamic toolbar example for mxGraph. This example demonstrates changing the
|
|
state of the toolbar at runtime.
|
|
-->
|
|
<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()
|
|
{
|
|
// 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
|
|
{
|
|
// 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);
|
|
|
|
// 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 = '0px';
|
|
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
|
|
var container = document.createElement('div');
|
|
container.style.position = 'absolute';
|
|
container.style.overflow = 'hidden';
|
|
container.style.left = '24px';
|
|
container.style.top = '0px';
|
|
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);
|
|
|
|
// 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);
|
|
|
|
var img = addToolbarItem(graph, toolbar, vertex, icon);
|
|
img.enabled = true;
|
|
|
|
graph.getSelectionModel().addListener(mxEvent.CHANGE, function()
|
|
{
|
|
var tmp = graph.isSelectionEmpty();
|
|
mxUtils.setOpacity(img, (tmp) ? 100 : 20);
|
|
img.enabled = tmp;
|
|
});
|
|
};
|
|
|
|
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');
|
|
}
|
|
}
|
|
|
|
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, x, y)
|
|
{
|
|
graph.stopEditing(false);
|
|
|
|
var vertex = graph.getModel().cloneCell(prototype);
|
|
vertex.geometry.x = x;
|
|
vertex.geometry.y = y;
|
|
|
|
graph.addCell(vertex);
|
|
graph.setSelectionCell(vertex);
|
|
}
|
|
|
|
// Creates the image which is used as the drag icon (preview)
|
|
var img = toolbar.addMode(null, image, function(evt, cell)
|
|
{
|
|
var pt = this.graph.getPointForEvent(evt);
|
|
funct(graph, evt, cell, pt.x, pt.y);
|
|
});
|
|
|
|
// Disables dragging if element is disabled. This is a workaround
|
|
// for wrong event order in IE. Following is a dummy listener that
|
|
// is invoked as the last listener in IE.
|
|
mxEvent.addListener(img, 'mousedown', function(evt)
|
|
{
|
|
// do nothing
|
|
});
|
|
|
|
// This listener is always called first before any other listener
|
|
// in all browsers.
|
|
mxEvent.addListener(img, 'mousedown', function(evt)
|
|
{
|
|
if (img.enabled == false)
|
|
{
|
|
mxEvent.consume(evt);
|
|
}
|
|
});
|
|
|
|
mxUtils.makeDraggable(img, graph, funct);
|
|
|
|
return img;
|
|
}
|
|
|
|
</script>
|
|
</head>
|
|
|
|
<!-- Calls the main function after the page has loaded. Container is dynamically created. -->
|
|
<body onload="main();">
|
|
</body>
|
|
</html>
|