mxgraph-map-fix
Version:
mxGraph is a fully client side JavaScript diagramming library that uses SVG and HTML for rendering.
221 lines (185 loc) • 6.49 kB
HTML
<!--
Copyright (c) 2006-2013, JGraph Ltd
Boundary example for mxGraph. This example demonstrates
implementing boundary events in BPMN diagrams.
-->
<html>
<head>
<title>Boundary 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(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
{
// Disables the built-in context menu
mxEvent.disableContextMenu(container);
// Creates the graph inside the given container
var graph = new mxGraph(container);
// Sets the base style for all vertices
var style = graph.getStylesheet().getDefaultVertexStyle();
style[mxConstants.STYLE_ROUNDED] = true;
style[mxConstants.STYLE_FILLCOLOR] = '#ffffff';
style[mxConstants.STYLE_STROKECOLOR] = '#000000';
style[mxConstants.STYLE_STROKEWIDTH] = '2';
style[mxConstants.STYLE_FONTCOLOR] = '#000000';
style[mxConstants.STYLE_FONTSIZE] = '12';
style[mxConstants.STYLE_FONTSTYLE] = 1;
graph.getStylesheet().putDefaultVertexStyle(style);
// Removes folding icon for relative children
graph.isCellFoldable = function(cell, collapse)
{
var childCount = this.model.getChildCount(cell);
for (var i = 0; i < childCount; i++)
{
var child = this.model.getChildAt(cell, i);
var geo = this.getCellGeometry(child);
if (geo != null && geo.relative)
{
return false;
}
}
return childCount > 0;
};
// Returns the relative position of the given child
function getRelativePosition(state, dx, dy)
{
if (state != null)
{
var model = graph.getModel();
var geo = model.getGeometry(state.cell);
if (geo != null && geo.relative && !model.isEdge(state.cell))
{
var parent = model.getParent(state.cell);
if (model.isVertex(parent))
{
var pstate = graph.view.getState(parent);
if (pstate != null)
{
var scale = graph.view.scale;
var x = state.x + dx;
var y = state.y + dy;
if (geo.offset != null)
{
x -= geo.offset.x * scale;
y -= geo.offset.y * scale;
}
x = (x - pstate.x) / pstate.width;
y = (y - pstate.y) / pstate.height;
if (Math.abs(y - 0.5) <= Math.abs((x - 0.5) / 2))
{
x = (x > 0.5) ? 1 : 0;
y = Math.min(1, Math.max(0, y));
}
else
{
x = Math.min(1, Math.max(0, x));
y = (y > 0.5) ? 1 : 0;
}
return new mxPoint(x, y);
}
}
}
}
return null;
};
// Replaces translation for relative children
graph.translateCell = function(cell, dx, dy)
{
var rel = getRelativePosition(this.view.getState(cell), dx * graph.view.scale, dy * graph.view.scale);
if (rel != null)
{
var geo = this.model.getGeometry(cell);
if (geo != null && geo.relative)
{
geo = geo.clone();
geo.x = rel.x;
geo.y = rel.y;
this.model.setGeometry(cell, geo);
}
}
else
{
mxGraph.prototype.translateCell.apply(this, arguments);
}
};
// Replaces move preview for relative children
graph.graphHandler.getDelta = function(me)
{
var point = mxUtils.convertPoint(this.graph.container, me.getX(), me.getY());
var delta = new mxPoint(point.x - this.first.x, point.y - this.first.y);
if (this.cells != null && this.cells.length > 0 && this.cells[0] != null)
{
var state = this.graph.view.getState(this.cells[0]);
var rel = getRelativePosition(state, delta.x, delta.y);
if (rel != null)
{
var pstate = this.graph.view.getState(this.graph.model.getParent(state.cell));
if (pstate != null)
{
delta = new mxPoint(pstate.x + pstate.width * rel.x - state.getCenterX(),
pstate.y + pstate.height * rel.y - state.getCenterY());
}
}
}
return delta;
};
// Relative children cannot be removed from parent
graph.graphHandler.shouldRemoveCellsFromParent = function(parent, cells, evt)
{
return cells.length == 0 && !cells[0].geometry.relative && mxGraphHandler.prototype.shouldRemoveCellsFromParent.apply(this, arguments);
};
// Enables moving of relative children
graph.isCellLocked = function(cell)
{
return false;
};
// 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, 'Process', 60, 60, 90, 40);
var v2 = graph.insertVertex(v1, null, 'in', 0, 0.5, 20, 20, 'fontSize=9;shape=ellipse;resizable=0;');
v2.geometry.offset = new mxPoint(-10, -10);
v2.geometry.relative = true;
var v3 = graph.insertVertex(v1, null, 'out', 1, 0.5, 20, 20, 'fontSize=9;shape=ellipse;resizable=0;');
v3.geometry.offset = new mxPoint(-10, -10);
v3.geometry.relative = true;
}
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="position:relative;overflow:hidden;width:321px;height:241px;background:url('editors/images/grid.gif');cursor:default;">
</div>
</body>
</html>