<?php
namespace PhpOffice\PhpSpreadsheet\Writer\Xls;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Shared\Escher as SharedEscher;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DgContainer\SpgrContainer\SpContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE;
use PhpOffice\PhpSpreadsheet\Shared\Escher\DggContainer\BstoreContainer\BSE\Blip;
class Escher
{
/**
* The object we are writing.
*
* @var Blip|BSE|BstoreContainer|DgContainer|DggContainer|Escher|SpContainer|SpgrContainer
*/
private $object;
/**
* The written binary data.
*
* @var string
*/
private $data;
/**
* Shape offsets. Positions in binary stream where a new shape record begins.
*
* @var array
*/
private $spOffsets;
/**
* Shape types.
*
* @var array
*/
private $spTypes;
/**
* Constructor.
*
* @param mixed $object
*/
public function __construct($object)
{
$this->object = $object;
}
/**
* Process the object to be written.
*
* @return string
*/
public function close()
{
// initialize
$this->data = '';
switch (get_class($this->object)) {
case SharedEscher::class:
if ($dggContainer = $this->object->/** @scrutinizer ignore-call */ getDggContainer()) {
$writer = new self($dggContainer);
$this->data = $writer->close();
} elseif ($dgContainer = $this->object->/** @scrutinizer ignore-call */ getDgContainer()) {
$writer = new self($dgContainer);
$this->data = $writer->close();
$this->spOffsets = $writer->getSpOffsets();
$this->spTypes = $writer->getSpTypes();
}
break;
case DggContainer::class:
// this is a container record
// initialize
$innerData = '';
// write the dgg
$recVer = 0x0;
$recInstance = 0x0000;
$recType = 0xF006;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
// dgg data
$dggData =
pack(
'VVVV',
$this->object->/** @scrutinizer ignore-call */ getSpIdMax(), // maximum shape identifier increased by one
$this->object->/** @scrutinizer ignore-call */ getCDgSaved() + 1, // number of file identifier clusters increased by one
$this->object->/** @scrutinizer ignore-call */ getCSpSaved(),
$this->object->/** @scrutinizer ignore-call */ getCDgSaved() // count total number of drawings saved
);
// add file identifier clusters (one per drawing)
/** @scrutinizer ignore-call */
$IDCLs = $this->object->getIDCLs();
foreach ($IDCLs as $dgId => $maxReducedSpId) {
$dggData .= pack('VV', $dgId, $maxReducedSpId + 1);
}
$header = pack('vvV', $recVerInstance, $recType, strlen($dggData));
$innerData .= $header . $dggData;
// write the bstoreContainer
if ($bstoreContainer = $this->object->/** @scrutinizer ignore-call */ getBstoreContainer()) {
$writer = new self($bstoreContainer);
$innerData .= $writer->close();
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF000;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case BstoreContainer::class:
// this is a container record
// initialize
$innerData = '';
// treat the inner data
if ($BSECollection = $this->object->/** @scrutinizer ignore-call */ getBSECollection()) {
foreach ($BSECollection as $BSE) {
$writer = new self($BSE);
$innerData .= $writer->close();
}
}
// write the record
$recVer = 0xF;
$recInstance = count($this->object->/** @scrutinizer ignore-call */ getBSECollection());
$recType = 0xF001;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case BSE::class:
// this is a semi-container record
// initialize
$innerData = '';
// here we treat the inner data
if ($blip = $this->object->/** @scrutinizer ignore-call */ getBlip()) {
$writer = new self($blip);
$innerData .= $writer->close();
}
// initialize
$data = '';
/** @scrutinizer ignore-call */
$btWin32 = $this->object->getBlipType();
/** @scrutinizer ignore-call */
$btMacOS = $this->object->getBlipType();
$data .= pack('CC', $btWin32, $btMacOS);
$rgbUid = pack('VVVV', 0, 0, 0, 0); // todo
$data .= $rgbUid;
$tag = 0;
$size = strlen($innerData);
$cRef = 1;
$foDelay = 0; //todo
$unused1 = 0x0;
$cbName = 0x0;
$unused2 = 0x0;
$unused3 = 0x0;
$data .= pack('vVVVCCCC', $tag, $size, $cRef, $foDelay, $unused1, $cbName, $unused2, $unused3);
$data .= $innerData;
// write the record
$recVer = 0x2;
/** @scrutinizer ignore-call */
$recInstance = $this->object->getBlipType();
$recType = 0xF007;
$length = strlen($data);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $data;
break;
case Blip::class:
// this is an atom record
// write the record
switch ($this->object->/** @scrutinizer ignore-call */ getParent()->/** @scrutinizer ignore-call */ getBlipType()) {
case BSE::BLIPTYPE_JPEG:
// initialize
$innerData = '';
$rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
$innerData .= $rgbUid1;
$tag = 0xFF; // todo
$innerData .= pack('C', $tag);
$innerData .= $this->object->/** @scrutinizer ignore-call */ getData();
$recVer = 0x0;
$recInstance = 0x46A;
$recType = 0xF01D;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $innerData;
break;
case BSE::BLIPTYPE_PNG:
// initialize
$innerData = '';
$rgbUid1 = pack('VVVV', 0, 0, 0, 0); // todo
$innerData .= $rgbUid1;
$tag = 0xFF; // todo
$innerData .= pack('C', $tag);
$innerData .= $this->object->/** @scrutinizer ignore-call */ getData();
$recVer = 0x0;
$recInstance = 0x6E0;
$recType = 0xF01E;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header;
$this->data .= $innerData;
break;
}
break;
case DgContainer::class:
// this is a container record
// initialize
$innerData = '';
// write the dg
$recVer = 0x0;
/** @scrutinizer ignore-call */
$recInstance = $this->object->getDgId();
$recType = 0xF008;
$length = 8;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
// number of shapes in this drawing (including group shape)
$countShapes = count($this->object->/** @scrutinizer ignore-call */ getSpgrContainerOrThrow()->getChildren());
$innerData .= $header . pack('VV', $countShapes, $this->object->/** @scrutinizer ignore-call */ getLastSpId());
// write the spgrContainer
if ($spgrContainer = $this->object->/** @scrutinizer ignore-call */ getSpgrContainer()) {
$writer = new self($spgrContainer);
$innerData .= $writer->close();
// get the shape offsets relative to the spgrContainer record
$spOffsets = $writer->getSpOffsets();
$spTypes = $writer->getSpTypes();
// save the shape offsets relative to dgContainer
foreach ($spOffsets as &$spOffset) {
$spOffset += 24; // add length of dgContainer header data (8 bytes) plus dg data (16 bytes)
}
$this->spOffsets = $spOffsets;
$this->spTypes = $spTypes;
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF002;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
break;
case SpgrContainer::class:
// this is a container record
// initialize
$innerData = '';
// initialize spape offsets
$totalSize = 8;
$spOffsets = [];
$spTypes = [];
// treat the inner data
foreach ($this->object->/** @scrutinizer ignore-call */ getChildren() as $spContainer) {
$writer = new self($spContainer);
$spData = $writer->close();
$innerData .= $spData;
// save the shape offsets (where new shape records begin)
$totalSize += strlen($spData);
$spOffsets[] = $totalSize;
$spTypes = array_merge($spTypes, $writer->getSpTypes());
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF003;
$length = strlen($innerData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $innerData;
$this->spOffsets = $spOffsets;
$this->spTypes = $spTypes;
break;
case SpContainer::class:
// initialize
$data = '';
// build the data
// write group shape record, if necessary?
if ($this->object->/** @scrutinizer ignore-call */ getSpgr()) {
$recVer = 0x1;
$recInstance = 0x0000;
$recType = 0xF009;
$length = 0x00000010;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . pack('VVVV', 0, 0, 0, 0);
}
/** @scrutinizer ignore-call */
$this->spTypes[] = ($this->object->getSpType());
// write the shape record
$recVer = 0x2;
/** @scrutinizer ignore-call */
$recInstance = $this->object->getSpType(); // shape type
$recType = 0xF00A;
$length = 0x00000008;
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . pack('VV', $this->object->/** @scrutinizer ignore-call */ getSpId(), $this->object->/** @scrutinizer ignore-call */ getSpgr() ? 0x0005 : 0x0A00);
// the options
if ($this->object->/** @scrutinizer ignore-call */ getOPTCollection()) {
$optData = '';
$recVer = 0x3;
$recInstance = count($this->object->/** @scrutinizer ignore-call */ getOPTCollection());
$recType = 0xF00B;
foreach ($this->object->/** @scrutinizer ignore-call */ getOPTCollection() as $property => $value) {
$optData .= pack('vV', $property, $value);
}
$length = strlen($optData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $optData;
}
// the client anchor
if ($this->object->/** @scrutinizer ignore-call */ getStartCoordinates()) {
$recVer = 0x0;
$recInstance = 0x0;
$recType = 0xF010;
// start coordinates
[$column, $row] = Coordinate::indexesFromString($this->object->/** @scrutinizer ignore-call */ getStartCoordinates());
$c1 = $column - 1;
$r1 = $row - 1;
// start offsetX
/** @scrutinizer ignore-call */
$startOffsetX = $this->object->getStartOffsetX();
// start offsetY
/** @scrutinizer ignore-call */
$startOffsetY = $this->object->getStartOffsetY();
// end coordinates
[$column, $row] = Coordinate::indexesFromString($this->object->/** @scrutinizer ignore-call */ getEndCoordinates());
$c2 = $column - 1;
$r2 = $row - 1;
// end offsetX
/** @scrutinizer ignore-call */
$endOffsetX = $this->object->getEndOffsetX();
// end offsetY
/** @scrutinizer ignore-call */
$endOffsetY = $this->object->getEndOffsetY();
$clientAnchorData = pack('vvvvvvvvv', $this->object->/** @scrutinizer ignore-call */ getSpFlag(), $c1, $startOffsetX, $r1, $startOffsetY, $c2, $endOffsetX, $r2, $endOffsetY);
$length = strlen($clientAnchorData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $clientAnchorData;
}
// the client data, just empty for now
if (!$this->object->/** @scrutinizer ignore-call */ getSpgr()) {
$clientDataData = '';
$recVer = 0x0;
$recInstance = 0x0;
$recType = 0xF011;
$length = strlen($clientDataData);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$data .= $header . $clientDataData;
}
// write the record
$recVer = 0xF;
$recInstance = 0x0000;
$recType = 0xF004;
$length = strlen($data);
$recVerInstance = $recVer;
$recVerInstance |= $recInstance << 4;
$header = pack('vvV', $recVerInstance, $recType, $length);
$this->data = $header . $data;
break;
}
return $this->data;
}
/**
* Gets the shape offsets.
*
* @return array
*/
public function getSpOffsets()
{
return $this->spOffsets;
}
/**
* Gets the shape types.
*
* @return array
*/
public function getSpTypes()
{
return $this->spTypes;
}
}
About Section
NFC Pay was founded with a vision to transform the way people handle transactions. Our journey is defined by a commitment to innovation, security, and convenience. We strive to deliver seamless, user-friendly payment solutions that make everyday transactions effortless and secure. Our mission is to empower you to pay with ease and confidence, anytime, anywhere.
FAQ Section
Here are answers to some common questions about NFC Pay. We aim to provide clear and concise information to help you understand how our platform works and how it can benefit you. If you have any further inquiries, please don’t hesitate to contact our support team.
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