maxGraph/javascript/examples/fixedicon.html

148 lines
4.2 KiB
HTML

<!--
$Id: fixedicon.html,v 1.3 2012-07-17 08:22:19 gaudenz Exp $
Copyright (c) 2006-2010, JGraph Ltd
FixedIcon example for mxGraph. This example demonstrates
customizing the icon position in the mxLabel shape.
-->
<html>
<head>
<title>Fixed icon 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">
// Overrides the label redraw code to place the icon
mxLabel.prototype.redraw = function()
{
var isSvg = (this.dialect == mxConstants.DIALECT_SVG);
var isVml = mxUtils.isVml(this.node);
// Updates the bounds of the outermost shape
if (isSvg)
{
this.updateSvgShape(this.innerNode);
if (this.shadowNode != null)
{
this.updateSvgShape(this.shadowNode);
}
this.updateSvgGlassPane();
}
else if (isVml)
{
this.updateVmlShape(this.node);
this.updateVmlShape(this.rectNode);
this.label.style.width = this.node.style.width;
this.label.style.height = this.node.style.height;
this.updateVmlGlassPane();
}
else
{
this.updateHtmlShape(this.node);
}
// Updates the imagewidth and imageheight
var imageWidth = 0;
var imageHeight = 0;
if (this.imageNode != null)
{
imageWidth = (this.style[mxConstants.STYLE_IMAGE_WIDTH] ||
this.imageSize) * this.scale;
imageHeight = (this.style[mxConstants.STYLE_IMAGE_HEIGHT] ||
this.imageSize) * this.scale;
// Places the icon
var x = (this.bounds.width - imageWidth) / 2;
var y = this.bounds.height - imageHeight;
if (isSvg)
{
this.imageNode.setAttribute('x', (this.bounds.x + x) + 'px');
this.imageNode.setAttribute('y', (this.bounds.y + y) + 'px');
this.imageNode.setAttribute('width', imageWidth + 'px');
this.imageNode.setAttribute('height', imageHeight + 'px');
}
else
{
this.imageNode.style.position = 'relative';
this.imageNode.style.left = x + 'px';
this.imageNode.style.top = y + 'px';
this.imageNode.style.width = imageWidth + 'px';
this.imageNode.style.height = imageHeight + 'px';
this.imageNode.setAttribute('stroked', 'false');
}
}
};
// 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
{
// Enables crisp rendering of rectangles in SVG
mxLabel.prototype.crisp = true;
// Makes the shadow brighter
mxConstants.SHADOWCOLOR = '#C0C0C0';
// Creates the graph inside the given container
var graph = new mxGraph(container);
// Uncomment the following if you want the container
// to fit the size of the graph
//graph.setResizeContainer(true);
// 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, 'Fixed icon', 20, 20, 80, 50,
'shape=label;image=images/plus.png;imageWidth=16;imageHeight=16;spacingBottom=10;' +
'fillColor=#adc5ff;gradientColor=#7d85df;glass=1;rounded=1;shadow=1;');
}
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>