223 lines
6.1 KiB
HTML
223 lines
6.1 KiB
HTML
|
<!--
|
||
|
|
Copyright (c) 2006-2013, JGraph Ltd
|
||
|
|
|
||
|
|
Hover icons example for mxGraph. This example demonstrates showing
|
||
|
|
icons on vertices as mouse hovers over them.
|
||
|
|
-->
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<title>Hover icons 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">
|
||
|
|
// 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);
|
||
|
|
|
||
|
|
// Defines a new class for all icons
|
||
|
|
function mxIconSet(state)
|
||
|
|
{
|
||
|
|
this.images = [];
|
||
|
|
var graph = state.view.graph;
|
||
|
|
|
||
|
|
// Icon1
|
||
|
|
var img = mxUtils.createImage('images/copy.png');
|
||
|
|
img.setAttribute('title', 'Duplicate');
|
||
|
|
img.style.position = 'absolute';
|
||
|
|
img.style.cursor = 'pointer';
|
||
|
|
img.style.width = '16px';
|
||
|
|
img.style.height = '16px';
|
||
|
|
img.style.left = (state.x + state.width) + 'px';
|
||
|
|
img.style.top = (state.y + state.height) + 'px';
|
||
|
|
|
||
|
|
mxEvent.addGestureListeners(img,
|
||
|
|
mxUtils.bind(this, function(evt)
|
||
|
|
{
|
||
|
|
var s = graph.gridSize;
|
||
|
|
graph.setSelectionCells(graph.moveCells([state.cell], s, s, true));
|
||
|
|
mxEvent.consume(evt);
|
||
|
|
this.destroy();
|
||
|
|
})
|
||
|
|
);
|
||
|
|
|
||
|
|
state.view.graph.container.appendChild(img);
|
||
|
|
this.images.push(img);
|
||
|
|
|
||
|
|
// Delete
|
||
|
|
var img = mxUtils.createImage('images/delete2.png');
|
||
|
|
img.setAttribute('title', 'Delete');
|
||
|
|
img.style.position = 'absolute';
|
||
|
|
img.style.cursor = 'pointer';
|
||
|
|
img.style.width = '16px';
|
||
|
|
img.style.height = '16px';
|
||
|
|
img.style.left = (state.x + state.width) + 'px';
|
||
|
|
img.style.top = (state.y - 16) + 'px';
|
||
|
|
|
||
|
|
mxEvent.addGestureListeners(img,
|
||
|
|
mxUtils.bind(this, function(evt)
|
||
|
|
{
|
||
|
|
// Disables dragging the image
|
||
|
|
mxEvent.consume(evt);
|
||
|
|
})
|
||
|
|
);
|
||
|
|
|
||
|
|
mxEvent.addListener(img, 'click',
|
||
|
|
mxUtils.bind(this, function(evt)
|
||
|
|
{
|
||
|
|
graph.removeCells([state.cell]);
|
||
|
|
mxEvent.consume(evt);
|
||
|
|
this.destroy();
|
||
|
|
})
|
||
|
|
);
|
||
|
|
|
||
|
|
state.view.graph.container.appendChild(img);
|
||
|
|
this.images.push(img);
|
||
|
|
};
|
||
|
|
|
||
|
|
mxIconSet.prototype.destroy = function()
|
||
|
|
{
|
||
|
|
if (this.images != null)
|
||
|
|
{
|
||
|
|
for (var i = 0; i < this.images.length; i++)
|
||
|
|
{
|
||
|
|
var img = this.images[i];
|
||
|
|
img.parentNode.removeChild(img);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
this.images = null;
|
||
|
|
};
|
||
|
|
|
||
|
|
// 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(container)
|
||
|
|
{
|
||
|
|
// Checks if the 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 graph inside the given container
|
||
|
|
var graph = new mxGraph(container);
|
||
|
|
graph.setConnectable(true);
|
||
|
|
|
||
|
|
// Defines the tolerance before removing the icons
|
||
|
|
var iconTolerance = 20;
|
||
|
|
|
||
|
|
// Shows icons if the mouse is over a cell
|
||
|
|
graph.addMouseListener(
|
||
|
|
{
|
||
|
|
currentState: null,
|
||
|
|
currentIconSet: null,
|
||
|
|
mouseDown: function(sender, me)
|
||
|
|
{
|
||
|
|
// Hides icons on mouse down
|
||
|
|
if (this.currentState != null)
|
||
|
|
{
|
||
|
|
this.dragLeave(me.getEvent(), this.currentState);
|
||
|
|
this.currentState = null;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
mouseMove: function(sender, me)
|
||
|
|
{
|
||
|
|
if (this.currentState != null && (me.getState() == this.currentState ||
|
||
|
|
me.getState() == null))
|
||
|
|
{
|
||
|
|
var tol = iconTolerance;
|
||
|
|
var tmp = new mxRectangle(me.getGraphX() - tol,
|
||
|
|
me.getGraphY() - tol, 2 * tol, 2 * tol);
|
||
|
|
|
||
|
|
if (mxUtils.intersects(tmp, this.currentState))
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
var tmp = graph.view.getState(me.getCell());
|
||
|
|
|
||
|
|
// Ignores everything but vertices
|
||
|
|
if (graph.isMouseDown || (tmp != null && !graph.getModel().isVertex(tmp.cell)))
|
||
|
|
{
|
||
|
|
tmp = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (tmp != this.currentState)
|
||
|
|
{
|
||
|
|
if (this.currentState != null)
|
||
|
|
{
|
||
|
|
this.dragLeave(me.getEvent(), this.currentState);
|
||
|
|
}
|
||
|
|
|
||
|
|
this.currentState = tmp;
|
||
|
|
|
||
|
|
if (this.currentState != null)
|
||
|
|
{
|
||
|
|
this.dragEnter(me.getEvent(), this.currentState);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
},
|
||
|
|
mouseUp: function(sender, me) { },
|
||
|
|
dragEnter: function(evt, state)
|
||
|
|
{
|
||
|
|
if (this.currentIconSet == null)
|
||
|
|
{
|
||
|
|
this.currentIconSet = new mxIconSet(state);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
dragLeave: function(evt, state)
|
||
|
|
{
|
||
|
|
if (this.currentIconSet != null)
|
||
|
|
{
|
||
|
|
this.currentIconSet.destroy();
|
||
|
|
this.currentIconSet = null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
});
|
||
|
|
|
||
|
|
// Enables rubberband selection
|
||
|
|
new mxRubberband(graph);
|
||
|
|
|
||
|
|
// Gets the default parent for inserting new cells. This
|
||
|
|
// is normally the first child of the root (ie. layer 0).
|
||
|
|
var parent = graph.getDefaultParent();
|
||
|
|
|
||
|
|
// Adds cells to the model in a single step
|
||
|
|
graph.getModel().beginUpdate();
|
||
|
|
try
|
||
|
|
{
|
||
|
|
var v1 = graph.insertVertex(parent, null, 'Hello,', 20, 20, 80, 30);
|
||
|
|
var v2 = graph.insertVertex(parent, null, 'World!', 200, 150, 80, 30);
|
||
|
|
var e1 = graph.insertEdge(parent, null, '', v1, v2);
|
||
|
|
}
|
||
|
|
finally
|
||
|
|
{
|
||
|
|
// Updates the display
|
||
|
|
graph.getModel().endUpdate();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
</script>
|
||
|
|
</head>
|
||
|
|
|
||
|
|
<!-- Page passes the container for the graph to the program -->
|
||
|
|
<body onload="main(document.getElementById('graphContainer'))">
|
||
|
|
|
||
|
|
<!-- Creates a container for the graph with a grid wallpaper -->
|
||
|
|
<div id="graphContainer"
|
||
|
|
style="overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif');cursor:default;">
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|