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<?php |
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/** |
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* @file |
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* Grafizzi\Graph\Node: 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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class Node extends AbstractElement { |
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/** |
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* Helper to simplify construction of implicit nodes. |
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* |
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* @return array |
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*/ |
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public static function implicit() { |
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return array('implicit' => true); |
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} |
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/** |
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* Node is implicit: it can be used in edge creations, but has no entry of its own. |
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* |
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* @var boolean |
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*/ |
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public $fImplicit = false; |
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public function __construct(Container $dic, $name, array $attributes = array()) { |
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parent::__construct($dic); |
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if (isset($attributes['implicit'])) { |
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$this->fImplicit = $attributes['implicit']; |
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unset($attributes['implicit']); |
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} |
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$this->setAttributes($attributes); |
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if (!isset($attributes['name'])) { |
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$this->setName($name); |
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} |
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} |
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/** |
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* @see AbstractElement::build() |
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*/ |
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public function build($directed = null) { |
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// Implicit nodes have no entry of their own. |
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if ($this->fImplicit) { |
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return ''; |
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} |
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$type = $this->getType(); |
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$name = $this->getName(); |
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$this->logger->debug("Building $type $name, depth {$this->fDepth}."); |
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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 = str_repeat(' ', $this->fDepth * self::DEPTH_INDENT) . $this->escape($name); |
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if (!empty($attributes)) { |
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$builtAttributes = implode(', ', array_filter($attributes)); |
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if (!empty($builtAttributes)) { |
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$ret .= " [ " . implode(', ', array_filter($attributes)) . " ]"; |
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} |
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} |
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$ret .= ";\n"; |
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return $ret; |
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} |
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public static function getAllowedChildTypes() { |
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return array(); |
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} |
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public function getType() { |
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$ret = 'node'; |
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return $ret; |
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} |
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} |
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FGM /
grafizzi
