Source of file FrameTreeIterator.php
Size: 1,558 Bytes - Last Modified: 2021-12-23T10:11:59+00:00
/var/www/docs.ssmods.com/process/src/ext/dompdf/dompdf/src/Frame/FrameTreeIterator.php
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697 | <?php namespace Dompdf\Frame; use Iterator; use Dompdf\Frame; /** * Pre-order Iterator * * Returns frames in preorder traversal order (parent then children) * * @access private * @package dompdf */ class FrameTreeIterator implements Iterator { /** * @var Frame */ protected $_root; /** * @var array */ protected $_stack = array(); /** * @var int */ protected $_num; /** * @param Frame $root */ public function __construct(Frame $root) { $this->_stack[] = $this->_root = $root; $this->_num = 0; } /** * */ public function rewind() { $this->_stack = array($this->_root); $this->_num = 0; } /** * @return bool */ public function valid() { return count($this->_stack) > 0; } /** * @return int */ public function key() { return $this->_num; } /** * @return Frame */ public function current() { return end($this->_stack); } /** * @return Frame */ public function next() { $b = end($this->_stack); // Pop last element unset($this->_stack[key($this->_stack)]); $this->_num++; // Push all children onto the stack in reverse order if ($c = $b->get_last_child()) { $this->_stack[] = $c; while ($c = $c->get_prev_sibling()) { $this->_stack[] = $c; } } return $b; } } |