Code Coverage for C:\Users\flo\Documents\NetBeansProjects\Mondrian\src/Transform/Format/Graphviz.php

1	<?php
2
3	/*
4	* Mondrian
5	*/
6
7	namespace Trismegiste\Mondrian\Transform\Format;
8
9	use Alom\Graphviz\Digraph;
10	use Trismegiste\Mondrian\Graph\Vertex;
11
12	/**
13	* Graphviz is a decorator for GraphViz output
14	*
15	*/
16	class Graphviz extends GraphExporter
17	{
18
19	protected function createGraphVizDot()
20	{
21	return new Digraph('PhpGraph');
22	}
23
24	public function export()
25	{
26	$default = array('fixedsize' => true, 'width' => 2, 'height' => 2);
27	$dot = $this->createGraphVizDot();
28	$inverseIndex = new \SplObjectStorage();
29	// add vertices
30	foreach ($this->graph->getVertexSet() as $idx => $vertex) {
31	$inverseIndex[$vertex] = $idx;
32	$dot->node($idx, array_merge($default, $vertex->getAttribute()));
33	}
34	// add edges
35	foreach ($this->graph->getEdgeSet() as $edge) {
36	$dot->edge(array($inverseIndex[$edge->getSource()], $inverseIndex[$edge->getTarget()]));
37	}
38	// add cluster
39	foreach ($this->getPartition() as $idx => $subgraph) {
40	$scc = $dot->subgraph("cluster_$idx");
41	$scc->attr('graph', array('bgcolor' => 'antiquewhite'));
42	foreach ($subgraph as $vertex) {
43	$scc->node($inverseIndex[$vertex]);
44	}
45	}
46
47	return $dot->render();
48	}
49
50	}