Файловый менеджер

Файловый менеджер - Редактировать - /home/lmsyaran/public_html/administrator/components/com_hikashop/inc/boxpacker/VolumePacker.php

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<?php /** * @package HikaShop for Joomla! * @version 4.4.1 * @author hikashop.com * @copyright (C) 2010-2021 HIKARI SOFTWARE. All rights reserved. * @license GNU/GPLv3 http://www.gnu.org/licenses/gpl-3.0.html */ defined('_JEXEC') or die('Restricted access'); ?><?php namespace DVDoug\BoxPacker; use Psr\Log\LoggerAwareInterface; use Psr\Log\LoggerAwareTrait; use Psr\Log\NullLogger; class VolumePacker implements LoggerAwareInterface { use LoggerAwareTrait; protected $box; protected $boxWidth; protected $boxLength; protected $items; protected $skippedItems; protected $remainingWeight; protected $boxRotated = false; protected $layers = []; protected $lookAheadMode = false; public function __construct(Box $box, ItemList $items) { $this->box = $box; $this->items = $items; $this->boxWidth = max($this->box->getInnerWidth(), $this->box->getInnerLength()); $this->boxLength = min($this->box->getInnerWidth(), $this->box->getInnerLength()); $this->remainingWeight = $this->box->getMaxWeight() - $this->box->getEmptyWeight(); $this->skippedItems = new ItemList(); $this->logger = new NullLogger(); if ($this->box->getInnerWidth() !== $this->boxWidth \|\| $this->box->getInnerLength() !== $this->boxLength) { $this->boxRotated = true; } } public function setLookAheadMode($lookAhead) { $this->lookAheadMode = $lookAhead; } public function pack() { $this->logger->debug("[EVALUATING BOX] {$this->box->getReference()}", ['box' => $this->box]); while (count($this->items) > 0) { $layerStartDepth = $this->getCurrentPackedDepth(); $this->packLayer($layerStartDepth, $this->boxWidth, $this->boxLength, $this->box->getInnerDepth() - $layerStartDepth); } if ($this->boxRotated) { $this->rotateLayersNinetyDegrees(); } if (!$this->lookAheadMode) { $this->stabiliseLayers(); } $this->logger->debug('done with this box'); return PackedBox::fromPackedItemList($this->box, $this->getPackedItemList()); } protected function packLayer($startDepth, $widthLeft, $lengthLeft, $depthLeft) { $this->layers[] = $layer = new PackedLayer(); $prevItem = null; $x = $y = $rowWidth = $rowLength = $layerDepth = 0; while (count($this->items) > 0) { $itemToPack = $this->items->extract(); if (!$this->checkConstraints($itemToPack)) { $this->rebuildItemList(); continue; } $orientatedItem = $this->getOrientationForItem($itemToPack, $prevItem, $this->items, $this->hasItemsLeftToPack(), $widthLeft, $lengthLeft, $depthLeft, $rowLength, $x, $y, $startDepth); if ($orientatedItem instanceof OrientatedItem) { $packedItem = PackedItem::fromOrientatedItem($orientatedItem, $x, $y, $startDepth); $layer->insert($packedItem); $this->remainingWeight -= $orientatedItem->getItem()->getWeight(); $widthLeft -= $orientatedItem->getWidth(); $rowWidth += $orientatedItem->getWidth(); $rowLength = max($rowLength, $orientatedItem->getLength()); $layerDepth = max($layerDepth, $orientatedItem->getDepth()); $stackableDepth = $layerDepth - $orientatedItem->getDepth(); $this->tryAndStackItemsIntoSpace($layer, $prevItem, $this->items, $orientatedItem->getWidth(), $orientatedItem->getLength(), $stackableDepth, $x, $y, $startDepth + $orientatedItem->getDepth(), $rowLength); $x += $orientatedItem->getWidth(); $prevItem = $packedItem; $this->rebuildItemList(); } elseif (count($layer->getItems()) === 0) { // zero items on layer $this->logger->debug("doesn't fit on layer even when empty, skipping for good"); continue; } elseif ($widthLeft > 0 && count($this->items) > 0) { // skip for now, move on to the next item $this->logger->debug("doesn't fit, skipping for now"); $this->skippedItems->insert($itemToPack); } elseif ($x > 0 && $lengthLeft >= min($itemToPack->getWidth(), $itemToPack->getLength(), $itemToPack->getDepth())) { $this->logger->debug('No more fit in width wise, resetting for new row'); $widthLeft += $rowWidth; $lengthLeft -= $rowLength; $y += $rowLength; $x = $rowWidth = $rowLength = 0; $this->rebuildItemList($itemToPack); $prevItem = null; continue; } else { $this->logger->debug('no items fit, so starting next vertical layer'); $this->rebuildItemList($itemToPack); return; } } } public function stabiliseLayers() { $stabiliser = new LayerStabiliser(); $this->layers = $stabiliser->stabilise($this->layers); } protected function getOrientationForItem( Item $itemToPack, PackedItem $prevItem = null, ItemList $nextItems, $isLastItem, $maxWidth, $maxLength, $maxDepth, $rowLength, $x, $y, $z ) { $this->logger->debug( "evaluating item {$itemToPack->getDescription()} for fit", [ 'item' => $itemToPack, 'space' => [ 'maxWidth' => $maxWidth, 'maxLength' => $maxLength, 'maxDepth' => $maxDepth, ], ] ); $prevOrientatedItem = $prevItem ? $prevItem->toOrientatedItem() : null; $prevPackedItemList = $itemToPack instanceof ConstrainedPlacementItem ? $this->getPackedItemList() : new PackedItemList(); // don't calculate it if not going to be used $orientatedItemFactory = new OrientatedItemFactory($this->box); $orientatedItemFactory->setLogger($this->logger); $orientatedItemDecision = $orientatedItemFactory->getBestOrientation($itemToPack, $prevOrientatedItem, $nextItems, $isLastItem, $maxWidth, $maxLength, $maxDepth, $rowLength, $x, $y, $z, $prevPackedItemList); return $orientatedItemDecision; } protected function tryAndStackItemsIntoSpace( PackedLayer $layer, PackedItem $prevItem = null, ItemList $nextItems, $maxWidth, $maxLength, $maxDepth, $x, $y, $z, $rowLength ) { while (count($this->items) > 0 && $this->checkNonDimensionalConstraints($this->items->top())) { $stackedItem = $this->getOrientationForItem( $this->items->top(), $prevItem, $nextItems, $this->items->count() === 1, $maxWidth, $maxLength, $maxDepth, $rowLength, $x, $y, $z ); if ($stackedItem) { $this->remainingWeight -= $this->items->top()->getWeight(); $layer->insert(PackedItem::fromOrientatedItem($stackedItem, $x, $y, $z)); $this->items->extract(); $maxDepth -= $stackedItem->getDepth(); $z += $stackedItem->getDepth(); } else { break; } } } protected function checkConstraints( Item $itemToPack ) { return $this->checkNonDimensionalConstraints($itemToPack) && $this->checkDimensionalConstraints($itemToPack); } protected function checkNonDimensionalConstraints(Item $itemToPack) { $weightOK = $itemToPack->getWeight() <= $this->remainingWeight; if ($itemToPack instanceof ConstrainedItem) { return $weightOK && $itemToPack->canBePackedInBox($this->getPackedItemList()->asItemList(), $this->box); } return $weightOK; } protected function checkDimensionalConstraints(Item $itemToPack) { $orientatedItemFactory = new OrientatedItemFactory($this->box); $orientatedItemFactory->setLogger($this->logger); return (bool) $orientatedItemFactory->getPossibleOrientationsInEmptyBox($itemToPack); } protected function rebuildItemList(Item $currentItem = null) { if (count($this->items) === 0) { $this->items = $this->skippedItems; $this->skippedItems = new ItemList(); } if ($currentItem instanceof Item) { $this->items->insert($currentItem); } } protected function rotateLayersNinetyDegrees() { foreach ($this->layers as $i => $originalLayer) { $newLayer = new PackedLayer(); foreach ($originalLayer->getItems() as $item) { $packedItem = new PackedItem($item->getItem(), $item->getY(), $item->getX(), $item->getZ(), $item->getLength(), $item->getWidth(), $item->getDepth()); $newLayer->insert($packedItem); } $this->layers[$i] = $newLayer; } } protected function hasItemsLeftToPack() { return count($this->skippedItems) + count($this->items) === 0; } protected function getPackedItemList() { $packedItemList = new PackedItemList(); foreach ($this->layers as $layer) { foreach ($layer->getItems() as $packedItem) { $packedItemList->insert($packedItem); } } return $packedItemList; } protected function getCurrentPackedDepth() { $depth = 0; foreach ($this->layers as $layer) { $depth += $layer->getDepth(); } return $depth; } }

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