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<?php |
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/** |
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* @file |
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* Grafizzi\Graph\MultiEdge: a component of the Grafizzi library. |
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* |
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* (c) 2012 Frédéric G. MARAND <[email protected]> |
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* |
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* Grafizzi is free software: you can redistribute it and/or modify it under the |
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* terms of the GNU Lesser General Public License as published by the Free |
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* Software Foundation, either version 3 of the License, or (at your option) any |
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* later version. |
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* |
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* Grafizzi is distributed in the hope that it will be useful, but WITHOUT ANY |
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR |
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* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more |
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* details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with Grafizzi, in the COPYING.LESSER.txt file. If not, see |
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* <http://www.gnu.org/licenses/> |
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*/ |
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namespace Grafizzi\Graph; |
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use Pimple\Container; |
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/** |
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* A MultiEdge is a graph object made up of several nodes linked by edges, with |
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* only one set of attributes. In GraphViz format, this means something like: |
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* |
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* foo -> bar -> baz [ label=Quux ]; |
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* |
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* It provides a simpler source representation for node chains than multiple |
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* edges. |
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*/ |
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class MultiEdge extends AbstractElement { |
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/** |
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* Array of Node objects |
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* |
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* @var array |
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*/ |
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public $fNodes; |
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/** |
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* @var boolean |
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*/ |
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public $fDirected = true; |
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public function __construct(Container $dic, array $nodes, array $attributes = array()) { |
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parent::__construct($dic); |
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$nonNodes = array_filter($nodes, function ($node) { |
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return !($node instanceof Node); |
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}); |
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if (!empty($nonNodes)) { |
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throw new ChildTypeException("Trying to add non-nodes to a multi-edge element."); |
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} |
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$this->fNodes = $nodes; |
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$this->setName(implode('--', array_map(function (Node $node) { |
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return $node->getName(); |
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}, $this->fNodes))); |
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$this->setAttributes($attributes); |
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} |
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/** |
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* @param bool $directed |
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* |
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* @return string |
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*/ |
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public function build($directed = null) { |
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$type = $this->getType(); |
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$name = $this->getName(); |
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if (!isset($directed)) { |
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1 |
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$root = $this->getRoot(); |
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1 |
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if ($root instanceof GraphInterface) { |
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1 |
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$directed = $root->getDirected(); |
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1 |
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} |
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} |
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$this->logger->debug("Building $type $name, depth {$this->fDepth}."); |
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$joiner = ($directed ? ' -> ' : ' -- '); |
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$ret = str_repeat(' ', $this->fDepth * self::DEPTH_INDENT) |
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. implode($joiner, array_map(function (Node $node) { |
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return $node->getBuildName(); |
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}, $this->fNodes)); |
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$attributes = array_map(function (AttributeInterface $attribute) use ($directed) { |
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return $attribute->build($directed); |
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}, $this->fAttributes); |
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$ret .= $this->buildAttributes($attributes, NULL, NULL); |
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return $ret; |
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} |
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1 |
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public static function getAllowedChildTypes() { |
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return array(); |
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} |
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public function getType() { |
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$ret = 'multiedge'; |
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return $ret; |
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} |
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} |
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FGM /
grafizzi
