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<?php
namespace PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
class SpgrContainer
{
/**
* Parent Shape Group Container.
*
* @var null|SpgrContainer
*/
private $parent;
/**
* Shape Container collection.
*
* @var array
*/
private $children = [];
/**
* Set parent Shape Group Container.
*/
public function setParent(?self $parent): void
{
$this->parent = $parent;
}
/**
* Get the parent Shape Group Container if any.
*/
public function getParent(): ?self
{
return $this->parent;
}
/**
* Add a child. This will be either spgrContainer or spContainer.
*
* @param mixed $child
*/
public function addChild($child): void
{
$this->children[] = $child;
$child->setParent($this);
}
/**
* Get collection of Shape Containers.
*/
public function getChildren()
{
return $this->children;
}
/**
* Recursively get all spContainers within this spgrContainer.
*
* @return SpgrContainer\SpContainer[]
*/
public function getAllSpContainers()
{
$allSpContainers = [];
foreach ($this->children as $child) {
if ($child instanceof self) {
$allSpContainers = array_merge($allSpContainers, $child->getAllSpContainers());
} else {
$allSpContainers[] = $child;
}
}
return $allSpContainers;
}
}
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