/** * Constructor: mxGraphViewHtmlReader * * Constructs a new HTML graph view reader. */ function mxCodec($document = null) { if ($document == null) { $document = mxUtils::createXmlDocument(); } $this->document = $document; }
/** * Function: main * * Creates a graph using the API and converts it into a PNG image. */ function main() { // Creates graph with model $model = new mxGraphModel(); $graph = new mxGraph($model); $parent = $graph->getDefaultParent(); // Adds cells into the model $model->beginUpdate(); try { $v1 = $graph->insertVertex($parent, null, "Hello", 20, 20, 80, 30); $v2 = $graph->insertVertex($parent, null, "World!", 200, 150, 80, 30); $e1 = $graph->insertEdge($parent, null, "e1", $v1, $v2); $e1->getGeometry()->points = array(new mxPoint(10, 10)); $v3 = $graph->insertVertex($e1, null, "v3", 0, 0, 40, 40, "shape=ellipse"); $v3->getGeometry()->relative = true; $v3->getGeometry()->offset = new mxPoint(-20, -20); $model->add($parent, $e1, 0); } catch (Exception $e) { $model->endUpdate(); throw $e; } $model->endUpdate(); $doc = mxUtils::createXmlDocument(); $enc = new mxCodec($doc); $node = $enc->encode($model); $xml1 = $doc->saveXML($node); $doc = mxUtils::parseXml($xml1); $dec = new mxCodec($doc); $dec->decode($doc->documentElement, $model); $doc = mxUtils::createXmlDocument(); $enc = new mxCodec($doc); $node = $enc->encode($model); $xml2 = $doc->saveXML($node); if ($xml1 == $xml2) { echo "Test Passed: " . htmlentities($xml1); } else { echo "Test Failed: <br>xml1=" . htmlentities($xml1) . "<br>xml2=" . htmlentities($xml2); } }
/** * Function: parseXml * * Returns a new DOM document for the given XML string. */ static function parseXml($xml) { $doc = mxUtils::createXmlDocument(); $doc->loadXML($xml); return $doc; }